diff options
| author | Rafał Miłecki <rafal@milecki.pl> | 2021-11-03 09:33:48 +0100 |
|---|---|---|
| committer | Rafał Miłecki <rafal@milecki.pl> | 2021-11-03 12:08:40 +0100 |
| commit | e3a1e78cd85feb044a6b70cbb0ca787af52ae298 (patch) | |
| tree | 367882c01a8bf663a3f7a7cdaac83a2f48277ebf | |
| parent | b7bb176d1c1865b5cf443f72aae9b9c8999d0cd2 (diff) | |
| download | upstream-e3a1e78cd85feb044a6b70cbb0ca787af52ae298.tar.gz upstream-e3a1e78cd85feb044a6b70cbb0ca787af52ae298.tar.bz2 upstream-e3a1e78cd85feb044a6b70cbb0ca787af52ae298.zip | |
bcm4908: prepare kernel 5.10 support
It compiles but *doesn't* boot so it isn't enabled yet.
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
64 files changed, 7477 insertions, 0 deletions
diff --git a/target/linux/bcm4908/config-5.10 b/target/linux/bcm4908/config-5.10 new file mode 100644 index 0000000000..5dc035ed69 --- /dev/null +++ b/target/linux/bcm4908/config-5.10 @@ -0,0 +1,218 @@ +CONFIG_64BIT=y +CONFIG_ARCH_BCM4908=y +CONFIG_ARCH_CLOCKSOURCE_DATA=y +CONFIG_ARCH_DMA_ADDR_T_64BIT=y +CONFIG_ARCH_KEEP_MEMBLOCK=y +CONFIG_ARCH_MMAP_RND_BITS=18 +CONFIG_ARCH_MMAP_RND_BITS_MAX=24 +CONFIG_ARCH_MMAP_RND_BITS_MIN=18 +CONFIG_ARCH_MMAP_RND_COMPAT_BITS_MIN=11 +CONFIG_ARCH_PROC_KCORE_TEXT=y +CONFIG_ARCH_SELECT_MEMORY_MODEL=y +CONFIG_ARCH_SPARSEMEM_DEFAULT=y +CONFIG_ARCH_SPARSEMEM_ENABLE=y +CONFIG_ARCH_SUSPEND_POSSIBLE=y +CONFIG_ARM64=y +CONFIG_ARM64_4K_PAGES=y +CONFIG_ARM64_CONT_SHIFT=4 +CONFIG_ARM64_PAGE_SHIFT=12 +CONFIG_ARM64_PA_BITS=48 +CONFIG_ARM64_PA_BITS_48=y +CONFIG_ARM64_PTR_AUTH=y +CONFIG_ARM64_SSBD=y +CONFIG_ARM64_SVE=y +CONFIG_ARM64_TAGGED_ADDR_ABI=y +CONFIG_ARM64_VA_BITS=39 +CONFIG_ARM64_VA_BITS_39=y +CONFIG_ARM64_WORKAROUND_REPEAT_TLBI=y +CONFIG_ARM_AMBA=y +CONFIG_ARM_ARCH_TIMER=y +CONFIG_ARM_ARCH_TIMER_EVTSTREAM=y +CONFIG_ARM_GIC=y +CONFIG_ARM_GIC_V3=y +CONFIG_ARM_GIC_V3_ITS=y +CONFIG_ARM_PSCI_FW=y +CONFIG_AUDIT_ARCH_COMPAT_GENERIC=y +CONFIG_B53=y +# CONFIG_B53_MDIO_DRIVER is not set +# CONFIG_B53_MMAP_DRIVER is not set +# CONFIG_B53_SERDES is not set +# CONFIG_B53_SPI_DRIVER is not set +# CONFIG_B53_SRAB_DRIVER is not set +CONFIG_BCM4908_ENET=y +CONFIG_BCM7XXX_PHY=y +CONFIG_BCM_NET_PHYLIB=y +CONFIG_BCM_PMB=y +# CONFIG_BLK_DEV_INITRD is not set +CONFIG_BLK_PM=y +CONFIG_CLKDEV_LOOKUP=y +CONFIG_CLONE_BACKWARDS=y +CONFIG_CMDLINE="earlycon=bcm63xx_uart,0xff800640 console=ttyS0,115200" +CONFIG_CMDLINE_FORCE=y +CONFIG_COMMON_CLK=y +CONFIG_CPU_RMAP=y +CONFIG_CRC16=y +CONFIG_CRYPTO_ACOMP2=y +CONFIG_CRYPTO_AEAD=y +CONFIG_CRYPTO_AEAD2=y +CONFIG_CRYPTO_DEFLATE=y +CONFIG_CRYPTO_HASH2=y +CONFIG_CRYPTO_HASH_INFO=y +CONFIG_CRYPTO_LZO=y +CONFIG_CRYPTO_MANAGER=y +CONFIG_CRYPTO_MANAGER2=y +CONFIG_CRYPTO_NULL2=y +CONFIG_CRYPTO_RNG2=y +CONFIG_CRYPTO_ZSTD=y +CONFIG_DCACHE_WORD_ACCESS=y +CONFIG_DMA_DIRECT_REMAP=y +CONFIG_DMA_REMAP=y +CONFIG_DRM_RCAR_WRITEBACK=y +CONFIG_DTC=y +CONFIG_EDAC_SUPPORT=y +CONFIG_FIXED_PHY=y +CONFIG_FIX_EARLYCON_MEM=y +CONFIG_FRAME_POINTER=y +CONFIG_FW_LOADER_PAGED_BUF=y +CONFIG_GENERIC_ALLOCATOR=y +CONFIG_GENERIC_ARCH_TOPOLOGY=y +CONFIG_GENERIC_BUG=y +CONFIG_GENERIC_BUG_RELATIVE_POINTERS=y +CONFIG_GENERIC_CLOCKEVENTS=y +CONFIG_GENERIC_CLOCKEVENTS_BROADCAST=y +CONFIG_GENERIC_CPU_AUTOPROBE=y +CONFIG_GENERIC_CPU_VULNERABILITIES=y +CONFIG_GENERIC_CSUM=y +CONFIG_GENERIC_EARLY_IOREMAP=y +CONFIG_GENERIC_GETTIMEOFDAY=y +CONFIG_GENERIC_IDLE_POLL_SETUP=y +CONFIG_GENERIC_IRQ_EFFECTIVE_AFF_MASK=y +CONFIG_GENERIC_IRQ_MULTI_HANDLER=y +CONFIG_GENERIC_IRQ_SHOW=y +CONFIG_GENERIC_IRQ_SHOW_LEVEL=y +CONFIG_GENERIC_MSI_IRQ=y +CONFIG_GENERIC_MSI_IRQ_DOMAIN=y +CONFIG_GENERIC_PCI_IOMAP=y +CONFIG_GENERIC_PHY=y +CONFIG_GENERIC_SCHED_CLOCK=y +CONFIG_GENERIC_SMP_IDLE_THREAD=y +CONFIG_GENERIC_STRNCPY_FROM_USER=y +CONFIG_GENERIC_STRNLEN_USER=y +CONFIG_GENERIC_TIME_VSYSCALL=y +CONFIG_GPIOLIB=y +CONFIG_GPIO_GENERIC=y +CONFIG_GPIO_GENERIC_PLATFORM=y +CONFIG_GRO_CELLS=y +CONFIG_HANDLE_DOMAIN_IRQ=y +CONFIG_HARDEN_BRANCH_PREDICTOR=y +CONFIG_HARDIRQS_SW_RESEND=y +CONFIG_HAS_DMA=y +CONFIG_HAS_IOMEM=y +CONFIG_HOLES_IN_ZONE=y +CONFIG_HZ_PERIODIC=y +CONFIG_ILLEGAL_POINTER_VALUE=0xdead000000000000 +CONFIG_IRQCHIP=y +CONFIG_IRQ_DOMAIN=y +CONFIG_IRQ_DOMAIN_HIERARCHY=y +CONFIG_IRQ_FORCED_THREADING=y +CONFIG_IRQ_WORK=y +CONFIG_LEDS_GPIO=y +CONFIG_LIBFDT=y +CONFIG_LOCK_DEBUGGING_SUPPORT=y +CONFIG_LOCK_SPIN_ON_OWNER=y +CONFIG_LZO_COMPRESS=y +CONFIG_LZO_DECOMPRESS=y +CONFIG_MDIO_BCM_UNIMAC=y +CONFIG_MDIO_BUS=y +CONFIG_MDIO_DEVICE=y +CONFIG_MEMFD_CREATE=y +CONFIG_MFD_SYSCON=y +CONFIG_MIGRATION=y +CONFIG_MODULES_USE_ELF_RELA=y +CONFIG_MTD_NAND_BRCMNAND=y +CONFIG_MTD_NAND_CORE=y +CONFIG_MTD_NAND_ECC_SW_HAMMING=y +CONFIG_MTD_OF_PARTS_BCM4908=y +# CONFIG_MTD_OF_PARTS_LINKSYS_NS is not set +CONFIG_MTD_RAW_NAND=y +CONFIG_MTD_SPLIT_CFE_BOOTFS=y +# CONFIG_MTD_SPLIT_SQUASHFS_ROOT is not set +CONFIG_MTD_UBI=y +CONFIG_MTD_UBI_BEB_LIMIT=20 +CONFIG_MTD_UBI_BLOCK=y +CONFIG_MTD_UBI_WL_THRESHOLD=4096 +CONFIG_MUTEX_SPIN_ON_OWNER=y +CONFIG_NEED_DMA_MAP_STATE=y +CONFIG_NEED_SG_DMA_LENGTH=y +CONFIG_NET_DEVLINK=y +CONFIG_NET_DSA=y +CONFIG_NET_DSA_BCM_SF2=y +CONFIG_NET_DSA_TAG_BRCM=y +CONFIG_NET_DSA_TAG_BRCM_COMMON=y +CONFIG_NET_DSA_TAG_BRCM_PREPEND=y +CONFIG_NET_FLOW_LIMIT=y +CONFIG_NET_SWITCHDEV=y +CONFIG_NO_IOPORT_MAP=y +CONFIG_NR_CPUS=4 +CONFIG_OF=y +CONFIG_OF_ADDRESS=y +CONFIG_OF_EARLY_FLATTREE=y +CONFIG_OF_FLATTREE=y +CONFIG_OF_GPIO=y +CONFIG_OF_IRQ=y +CONFIG_OF_KOBJ=y +CONFIG_OF_MDIO=y +CONFIG_OF_NET=y +CONFIG_PADATA=y +CONFIG_PARTITION_PERCPU=y +CONFIG_PGTABLE_LEVELS=3 +CONFIG_PHYLIB=y +CONFIG_PHYLINK=y +CONFIG_PHYS_ADDR_T_64BIT=y +CONFIG_PHY_BRCM_USB=y +CONFIG_PM=y +CONFIG_PM_CLK=y +CONFIG_PM_GENERIC_DOMAINS=y +CONFIG_PM_GENERIC_DOMAINS_OF=y +CONFIG_POWER_RESET=y +CONFIG_POWER_RESET_SYSCON=y +CONFIG_POWER_SUPPLY=y +CONFIG_QUEUED_RWLOCKS=y +CONFIG_QUEUED_SPINLOCKS=y +CONFIG_RATIONAL=y +CONFIG_REFCOUNT_FULL=y +CONFIG_REGMAP=y +CONFIG_REGMAP_MMIO=y +CONFIG_RFS_ACCEL=y +CONFIG_RODATA_FULL_DEFAULT_ENABLED=y +CONFIG_RPS=y +CONFIG_RWSEM_SPIN_ON_OWNER=y +# CONFIG_SERIAL_8250 is not set +CONFIG_SERIAL_BCM63XX=y +CONFIG_SERIAL_BCM63XX_CONSOLE=y +CONFIG_SGL_ALLOC=y +CONFIG_SMP=y +CONFIG_SPARSEMEM_VMEMMAP_ENABLE=y +CONFIG_SPARSE_IRQ=y +CONFIG_SRCU=y +CONFIG_SWIOTLB=y +CONFIG_SWPHY=y +CONFIG_SYSCTL_EXCEPTION_TRACE=y +CONFIG_SYS_SUPPORTS_HUGETLBFS=y +CONFIG_THREAD_INFO_IN_TASK=y +CONFIG_TICK_CPU_ACCOUNTING=y +CONFIG_TIMER_OF=y +CONFIG_TIMER_PROBE=y +CONFIG_TREE_RCU=y +CONFIG_TREE_SRCU=y +CONFIG_UBIFS_FS=y +CONFIG_UNMAP_KERNEL_AT_EL0=y +CONFIG_USB_SUPPORT=y +CONFIG_VMAP_STACK=y +CONFIG_XPS=y +CONFIG_XXHASH=y +CONFIG_ZLIB_DEFLATE=y +CONFIG_ZLIB_INFLATE=y +CONFIG_ZONE_DMA32=y +CONFIG_ZSTD_COMPRESS=y +CONFIG_ZSTD_DECOMPRESS=y diff --git a/target/linux/bcm4908/files-5.10/drivers/net/ethernet/broadcom/unimac.h b/target/linux/bcm4908/files-5.10/drivers/net/ethernet/broadcom/unimac.h new file mode 100644 index 0000000000..585a852862 --- /dev/null +++ b/target/linux/bcm4908/files-5.10/drivers/net/ethernet/broadcom/unimac.h @@ -0,0 +1,68 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +#ifndef __UNIMAC_H +#define __UNIMAC_H + +#define UMAC_HD_BKP_CTRL 0x004 +#define HD_FC_EN (1 << 0) +#define HD_FC_BKOFF_OK (1 << 1) +#define IPG_CONFIG_RX_SHIFT 2 +#define IPG_CONFIG_RX_MASK 0x1F +#define UMAC_CMD 0x008 +#define CMD_TX_EN (1 << 0) +#define CMD_RX_EN (1 << 1) +#define CMD_SPEED_10 0 +#define CMD_SPEED_100 1 +#define CMD_SPEED_1000 2 +#define CMD_SPEED_2500 3 +#define CMD_SPEED_SHIFT 2 +#define CMD_SPEED_MASK 3 +#define CMD_PROMISC (1 << 4) +#define CMD_PAD_EN (1 << 5) +#define CMD_CRC_FWD (1 << 6) +#define CMD_PAUSE_FWD (1 << 7) +#define CMD_RX_PAUSE_IGNORE (1 << 8) +#define CMD_TX_ADDR_INS (1 << 9) +#define CMD_HD_EN (1 << 10) +#define CMD_SW_RESET_OLD (1 << 11) +#define CMD_SW_RESET (1 << 13) +#define CMD_LCL_LOOP_EN (1 << 15) +#define CMD_AUTO_CONFIG (1 << 22) +#define CMD_CNTL_FRM_EN (1 << 23) +#define CMD_NO_LEN_CHK (1 << 24) +#define CMD_RMT_LOOP_EN (1 << 25) +#define CMD_RX_ERR_DISC (1 << 26) +#define CMD_PRBL_EN (1 << 27) +#define CMD_TX_PAUSE_IGNORE (1 << 28) +#define CMD_TX_RX_EN (1 << 29) +#define CMD_RUNT_FILTER_DIS (1 << 30) +#define UMAC_MAC0 0x00c +#define UMAC_MAC1 0x010 +#define UMAC_MAX_FRAME_LEN 0x014 +#define UMAC_PAUSE_QUANTA 0x018 +#define UMAC_MODE 0x044 +#define MODE_LINK_STATUS (1 << 5) +#define UMAC_FRM_TAG0 0x048 /* outer tag */ +#define UMAC_FRM_TAG1 0x04c /* inner tag */ +#define UMAC_TX_IPG_LEN 0x05c +#define UMAC_EEE_CTRL 0x064 +#define EN_LPI_RX_PAUSE (1 << 0) +#define EN_LPI_TX_PFC (1 << 1) +#define EN_LPI_TX_PAUSE (1 << 2) +#define EEE_EN (1 << 3) +#define RX_FIFO_CHECK (1 << 4) +#define EEE_TX_CLK_DIS (1 << 5) +#define DIS_EEE_10M (1 << 6) +#define LP_IDLE_PREDICTION_MODE (1 << 7) +#define UMAC_EEE_LPI_TIMER 0x068 +#define UMAC_EEE_WAKE_TIMER 0x06C +#define UMAC_EEE_REF_COUNT 0x070 +#define EEE_REFERENCE_COUNT_MASK 0xffff +#define UMAC_RX_IPG_INV 0x078 +#define UMAC_MACSEC_PROG_TX_CRC 0x310 +#define UMAC_MACSEC_CTRL 0x314 +#define UMAC_PAUSE_CTRL 0x330 +#define UMAC_TX_FLUSH 0x334 +#define UMAC_RX_FIFO_STATUS 0x338 +#define UMAC_TX_FIFO_STATUS 0x33c + +#endif diff --git a/target/linux/bcm4908/patches-5.10/030-v5.11-0001-dt-bindings-arm-bcm-document-BCM4908-bindings.patch b/target/linux/bcm4908/patches-5.10/030-v5.11-0001-dt-bindings-arm-bcm-document-BCM4908-bindings.patch new file mode 100644 index 0000000000..66726cbf0b --- /dev/null +++ b/target/linux/bcm4908/patches-5.10/030-v5.11-0001-dt-bindings-arm-bcm-document-BCM4908-bindings.patch @@ -0,0 +1,60 @@ +From 2f8913a7b17efd3a116825160a2d3a6610444587 Mon Sep 17 00:00:00 2001 +From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl> +Date: Thu, 12 Nov 2020 16:08:31 +0100 +Subject: [PATCH] dt-bindings: arm: bcm: document BCM4908 bindings +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +BCM4908 is a new family that includes BCM4906, BCM4908 and BCM49408. +It's mostly used in home routers and often replaces Northstar in vendors +portfolio. + +Signed-off-by: Rafał Miłecki <rafal@milecki.pl> +Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> +--- + .../bindings/arm/bcm/brcm,bcm4908.yaml | 38 +++++++++++++++++++ + 1 file changed, 38 insertions(+) + create mode 100644 Documentation/devicetree/bindings/arm/bcm/brcm,bcm4908.yaml + +--- /dev/null ++++ b/Documentation/devicetree/bindings/arm/bcm/brcm,bcm4908.yaml +@@ -0,0 +1,38 @@ ++# SPDX-License-Identifier: GPL-2.0 OR BSD-2-Clause ++%YAML 1.2 ++--- ++$id: http://devicetree.org/schemas/arm/bcm/brcm,bcm4908.yaml# ++$schema: http://devicetree.org/meta-schemas/core.yaml# ++ ++title: Broadcom BCM4908 device tree bindings ++ ++description: ++ Broadcom BCM4906 / BCM4908 / BCM49408 Wi-Fi/network SoCs with Brahma CPUs. ++ ++maintainers: ++ - Rafał Miłecki <rafal@milecki.pl> ++ ++properties: ++ $nodename: ++ const: '/' ++ compatible: ++ oneOf: ++ - description: BCM4906 based boards ++ items: ++ - const: brcm,bcm4906 ++ - const: brcm,bcm4908 ++ ++ - description: BCM4908 based boards ++ items: ++ - enum: ++ - asus,gt-ac5300 ++ - const: brcm,bcm4908 ++ ++ - description: BCM49408 based boards ++ items: ++ - const: brcm,bcm49408 ++ - const: brcm,bcm4908 ++ ++additionalProperties: true ++ ++... diff --git a/target/linux/bcm4908/patches-5.10/030-v5.11-0002-arm64-dts-broadcom-add-BCM4908-and-Asus-GT-AC5300-ea.patch b/target/linux/bcm4908/patches-5.10/030-v5.11-0002-arm64-dts-broadcom-add-BCM4908-and-Asus-GT-AC5300-ea.patch new file mode 100644 index 0000000000..fd7d6a5f11 --- /dev/null +++ b/target/linux/bcm4908/patches-5.10/030-v5.11-0002-arm64-dts-broadcom-add-BCM4908-and-Asus-GT-AC5300-ea.patch @@ -0,0 +1,307 @@ +From 2961f69f151c0a6771f55cef46398fe49ca20902 Mon Sep 17 00:00:00 2001 +From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl> +Date: Thu, 12 Nov 2020 16:08:32 +0100 +Subject: [PATCH] arm64: dts: broadcom: add BCM4908 and Asus GT-AC5300 early + DTS files +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +They don't descibe hardware fully yet but it's enough to boot a system. + +Some missing blocks: +1. PMC (Power Management Controller?) +2. Ethernet +3. Crypto +4. Thermal + +Asus DTS is missing defining full NAND partitions layout and buttons. + +Further changes will fill those gaps as soon as required bindings will +be found / tested / added. + +Signed-off-by: Rafał Miłecki <rafal@milecki.pl> +Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> +--- + arch/arm64/boot/dts/broadcom/Makefile | 1 + + arch/arm64/boot/dts/broadcom/bcm4908/Makefile | 2 + + .../bcm4908/bcm4908-asus-gt-ac5300.dts | 66 +++++++ + .../boot/dts/broadcom/bcm4908/bcm4908.dtsi | 187 ++++++++++++++++++ + 4 files changed, 256 insertions(+) + create mode 100644 arch/arm64/boot/dts/broadcom/bcm4908/Makefile + create mode 100644 arch/arm64/boot/dts/broadcom/bcm4908/bcm4908-asus-gt-ac5300.dts + create mode 100644 arch/arm64/boot/dts/broadcom/bcm4908/bcm4908.dtsi + +--- a/arch/arm64/boot/dts/broadcom/Makefile ++++ b/arch/arm64/boot/dts/broadcom/Makefile +@@ -5,5 +5,6 @@ dtb-$(CONFIG_ARCH_BCM2835) += bcm2711-rp + bcm2837-rpi-3-b-plus.dtb \ + bcm2837-rpi-cm3-io3.dtb + ++subdir-y += bcm4908 + subdir-y += northstar2 + subdir-y += stingray +--- /dev/null ++++ b/arch/arm64/boot/dts/broadcom/bcm4908/Makefile +@@ -0,0 +1,2 @@ ++# SPDX-License-Identifier: GPL-2.0 ++dtb-$(CONFIG_ARCH_BCM4908) += bcm4908-asus-gt-ac5300.dtb +--- /dev/null ++++ b/arch/arm64/boot/dts/broadcom/bcm4908/bcm4908-asus-gt-ac5300.dts +@@ -0,0 +1,66 @@ ++// SPDX-License-Identifier: GPL-2.0-or-later OR MIT ++ ++#include <dt-bindings/gpio/gpio.h> ++#include <dt-bindings/input/input.h> ++ ++#include "bcm4908.dtsi" ++ ++/ { ++ compatible = "asus,gt-ac5300", "brcm,bcm4908"; ++ model = "Asus GT-AC5300"; ++ ++ memory@0 { ++ device_type = "memory"; ++ reg = <0x00 0x00 0x00 0x40000000>; ++ }; ++ ++ gpio-keys-polled { ++ compatible = "gpio-keys-polled"; ++ poll-interval = <100>; ++ ++ wifi { ++ label = "WiFi"; ++ linux,code = <KEY_RFKILL>; ++ gpios = <&gpio0 28 GPIO_ACTIVE_LOW>; ++ }; ++ ++ wps { ++ label = "WPS"; ++ linux,code = <KEY_WPS_BUTTON>; ++ gpios = <&gpio0 29 GPIO_ACTIVE_LOW>; ++ }; ++ ++ restart { ++ label = "Reset"; ++ linux,code = <KEY_RESTART>; ++ gpios = <&gpio0 30 GPIO_ACTIVE_LOW>; ++ }; ++ ++ brightness { ++ label = "LEDs"; ++ linux,code = <KEY_BRIGHTNESS_ZERO>; ++ gpios = <&gpio0 31 GPIO_ACTIVE_LOW>; ++ }; ++ }; ++}; ++ ++&nandcs { ++ nand-ecc-strength = <4>; ++ nand-ecc-step-size = <512>; ++ nand-on-flash-bbt; ++ brcm,nand-has-wp; ++ ++ #address-cells = <1>; ++ #size-cells = <0>; ++ ++ partitions { ++ compatible = "fixed-partitions"; ++ #address-cells = <1>; ++ #size-cells = <1>; ++ ++ partition@0 { ++ label = "cferom"; ++ reg = <0x0 0x100000>; ++ }; ++ }; ++}; +--- /dev/null ++++ b/arch/arm64/boot/dts/broadcom/bcm4908/bcm4908.dtsi +@@ -0,0 +1,187 @@ ++// SPDX-License-Identifier: GPL-2.0-or-later OR MIT ++ ++#include <dt-bindings/interrupt-controller/irq.h> ++#include <dt-bindings/interrupt-controller/arm-gic.h> ++ ++/dts-v1/; ++ ++/ { ++ interrupt-parent = <&gic>; ++ ++ #address-cells = <2>; ++ #size-cells = <2>; ++ ++ aliases { ++ serial0 = &uart0; ++ }; ++ ++ chosen { ++ stdout-path = "serial0:115200n8"; ++ }; ++ ++ cpus { ++ #address-cells = <1>; ++ #size-cells = <0>; ++ ++ cpu0: cpu@0 { ++ device_type = "cpu"; ++ compatible = "brcm,brahma-b53"; ++ reg = <0x0>; ++ next-level-cache = <&l2>; ++ }; ++ ++ cpu1: cpu@1 { ++ device_type = "cpu"; ++ compatible = "brcm,brahma-b53"; ++ reg = <0x1>; ++ enable-method = "spin-table"; ++ cpu-release-addr = <0x0 0xfff8>; ++ next-level-cache = <&l2>; ++ }; ++ ++ cpu2: cpu@2 { ++ device_type = "cpu"; ++ compatible = "brcm,brahma-b53"; ++ reg = <0x2>; ++ enable-method = "spin-table"; ++ cpu-release-addr = <0x0 0xfff8>; ++ next-level-cache = <&l2>; ++ }; ++ ++ cpu3: cpu@3 { ++ device_type = "cpu"; ++ compatible = "brcm,brahma-b53"; ++ reg = <0x3>; ++ enable-method = "spin-table"; ++ cpu-release-addr = <0x0 0xfff8>; ++ next-level-cache = <&l2>; ++ }; ++ ++ l2: l2-cache0 { ++ compatible = "cache"; ++ }; ++ }; ++ ++ axi@81000000 { ++ compatible = "simple-bus"; ++ #address-cells = <1>; ++ #size-cells = <1>; ++ ranges = <0x00 0x00 0x81000000 0x4000>; ++ ++ gic: interrupt-controller@1000 { ++ compatible = "arm,gic-400"; ++ #interrupt-cells = <3>; ++ #address-cells = <0>; ++ interrupt-controller; ++ reg = <0x1000 0x1000>, ++ <0x2000 0x2000>; ++ }; ++ }; ++ ++ timer { ++ compatible = "arm,armv8-timer"; ++ interrupts = <GIC_PPI 13 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>, ++ <GIC_PPI 14 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>, ++ <GIC_PPI 11 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>, ++ <GIC_PPI 10 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>; ++ }; ++ ++ pmu { ++ compatible = "arm,cortex-a53-pmu"; ++ interrupts = <GIC_SPI 9 IRQ_TYPE_LEVEL_HIGH>, ++ <GIC_SPI 10 IRQ_TYPE_LEVEL_HIGH>, ++ <GIC_SPI 11 IRQ_TYPE_LEVEL_HIGH>, ++ <GIC_SPI 12 IRQ_TYPE_LEVEL_HIGH>; ++ interrupt-affinity = <&cpu0>, <&cpu1>, <&cpu2>, <&cpu3>; ++ }; ++ ++ clocks { ++ periph_clk: periph_clk { ++ compatible = "fixed-clock"; ++ #clock-cells = <0>; ++ clock-frequency = <50000000>; ++ clock-output-names = "periph"; ++ }; ++ }; ++ ++ soc { ++ compatible = "simple-bus"; ++ #address-cells = <1>; ++ #size-cells = <1>; ++ ranges = <0x00 0x00 0x80000000 0x10000>; ++ ++ usb@c300 { ++ compatible = "generic-ehci"; ++ reg = <0xc300 0x100>; ++ interrupts = <GIC_SPI 73 IRQ_TYPE_LEVEL_HIGH>; ++ status = "disabled"; ++ }; ++ ++ usb@c400 { ++ compatible = "generic-ohci"; ++ reg = <0xc400 0x100>; ++ interrupts = <GIC_SPI 72 IRQ_TYPE_LEVEL_HIGH>; ++ status = "disabled"; ++ }; ++ ++ usb@d000 { ++ compatible = "generic-xhci"; ++ reg = <0xd000 0x8c8>; ++ interrupts = <GIC_SPI 74 IRQ_TYPE_LEVEL_HIGH>; ++ status = "disabled"; ++ }; ++ }; ++ ++ bus@ff800000 { ++ compatible = "simple-bus"; ++ #address-cells = <1>; ++ #size-cells = <1>; ++ ranges = <0x00 0x00 0xff800000 0x3000>; ++ ++ timer: timer@400 { ++ compatible = "brcm,bcm6328-timer", "syscon"; ++ reg = <0x400 0x3c>; ++ }; ++ ++ gpio0: gpio-controller@500 { ++ compatible = "brcm,bcm6345-gpio"; ++ reg-names = "dirout", "dat"; ++ reg = <0x500 0x28>, <0x528 0x28>; ++ ++ #gpio-cells = <2>; ++ gpio-controller; ++ }; ++ ++ uart0: serial@640 { ++ compatible = "brcm,bcm6345-uart"; ++ reg = <0x640 0x18>; ++ interrupts = <GIC_SPI 32 IRQ_TYPE_LEVEL_HIGH>; ++ clocks = <&periph_clk>; ++ clock-names = "periph"; ++ status = "okay"; ++ }; ++ ++ nand@1800 { ++ #address-cells = <1>; ++ #size-cells = <0>; ++ compatible = "brcm,brcmnand-v7.1", "brcm,brcmnand"; ++ reg = <0x1800 0x600>, <0x2000 0x10>; ++ reg-names = "nand", "nand-int-base"; ++ interrupts = <GIC_SPI 37 IRQ_TYPE_LEVEL_HIGH>; ++ interrupt-names = "nand"; ++ status = "okay"; ++ ++ nandcs: nandcs@0 { ++ compatible = "brcm,nandcs"; ++ reg = <0>; ++ }; ++ }; ++ ++ reboot { ++ compatible = "syscon-reboot"; ++ regmap = <&timer>; ++ offset = <0x34>; ++ mask = <1>; ++ }; ++ }; ++}; diff --git a/target/linux/bcm4908/patches-5.10/030-v5.11-0003-v5.11-arm64-add-config-for-Broadcom-BCM4908-SoCs.patch b/target/linux/bcm4908/patches-5.10/030-v5.11-0003-v5.11-arm64-add-config-for-Broadcom-BCM4908-SoCs.patch new file mode 100644 index 0000000000..962517a57e --- /dev/null +++ b/target/linux/bcm4908/patches-5.10/030-v5.11-0003-v5.11-arm64-add-config-for-Broadcom-BCM4908-SoCs.patch @@ -0,0 +1,44 @@ +From dccb22d078ebd098115e4f66bde1ee2249c8640b Mon Sep 17 00:00:00 2001 +From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl> +Date: Thu, 12 Nov 2020 16:08:30 +0100 +Subject: [PATCH] arm64: add config for Broadcom BCM4908 SoCs +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +Add ARCH_BCM4908 config that can be used for compiling DTS files. + +Signed-off-by: Rafał Miłecki <rafal@milecki.pl> +Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> +--- + arch/arm64/Kconfig.platforms | 8 ++++++++ + arch/arm64/configs/defconfig | 1 + + 2 files changed, 9 insertions(+) + +--- a/arch/arm64/Kconfig.platforms ++++ b/arch/arm64/Kconfig.platforms +@@ -43,6 +43,14 @@ config ARCH_BCM2835 + This enables support for the Broadcom BCM2837 and BCM2711 SoC. + These SoCs are used in the Raspberry Pi 3 and 4 devices. + ++config ARCH_BCM4908 ++ bool "Broadcom BCM4908 family" ++ select GPIOLIB ++ help ++ This enables support for the Broadcom BCM4906, BCM4908 and ++ BCM49408 SoCs. These SoCs use Brahma-B53 cores and can be ++ found in home routers. ++ + config ARCH_BCM_IPROC + bool "Broadcom iProc SoC Family" + select COMMON_CLK_IPROC +--- a/arch/arm64/configs/defconfig ++++ b/arch/arm64/configs/defconfig +@@ -32,6 +32,7 @@ CONFIG_ARCH_AGILEX=y + CONFIG_ARCH_SUNXI=y + CONFIG_ARCH_ALPINE=y + CONFIG_ARCH_BCM2835=y ++CONFIG_ARCH_BCM4908=y + CONFIG_ARCH_BCM_IPROC=y + CONFIG_ARCH_BERLIN=y + CONFIG_ARCH_BRCMSTB=y diff --git a/target/linux/bcm4908/patches-5.10/031-v5.12-0001-dt-bindings-arm-bcm-document-Netgear-R8000P-binding.patch b/target/linux/bcm4908/patches-5.10/031-v5.12-0001-dt-bindings-arm-bcm-document-Netgear-R8000P-binding.patch new file mode 100644 index 0000000000..24a0749c77 --- /dev/null +++ b/target/linux/bcm4908/patches-5.10/031-v5.12-0001-dt-bindings-arm-bcm-document-Netgear-R8000P-binding.patch @@ -0,0 +1,28 @@ +From 3a5da4f54801ac42837a0b3151fa8285e01e8b0e Mon Sep 17 00:00:00 2001 +From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl> +Date: Tue, 8 Dec 2020 08:03:03 +0100 +Subject: [PATCH] dt-bindings: arm: bcm: document Netgear R8000P binding +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +It's a BCM4906 based device. + +Signed-off-by: Rafał Miłecki <rafal@milecki.pl> +Acked-by: Rob Herring <robh@kernel.org> +Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> +--- + Documentation/devicetree/bindings/arm/bcm/brcm,bcm4908.yaml | 2 ++ + 1 file changed, 2 insertions(+) + +--- a/Documentation/devicetree/bindings/arm/bcm/brcm,bcm4908.yaml ++++ b/Documentation/devicetree/bindings/arm/bcm/brcm,bcm4908.yaml +@@ -19,6 +19,8 @@ properties: + oneOf: + - description: BCM4906 based boards + items: ++ - enum: ++ - netgear,r8000p + - const: brcm,bcm4906 + - const: brcm,bcm4908 + diff --git a/target/linux/bcm4908/patches-5.10/031-v5.12-0002-arm64-dts-broadcom-bcm4908-add-BCM4906-Netgear-R8000.patch b/target/linux/bcm4908/patches-5.10/031-v5.12-0002-arm64-dts-broadcom-bcm4908-add-BCM4906-Netgear-R8000.patch new file mode 100644 index 0000000000..93fa2150af --- /dev/null +++ b/target/linux/bcm4908/patches-5.10/031-v5.12-0002-arm64-dts-broadcom-bcm4908-add-BCM4906-Netgear-R8000.patch @@ -0,0 +1,104 @@ +From c8b404fb05dcfadff477e49b7ea6b500e015f101 Mon Sep 17 00:00:00 2001 +From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl> +Date: Tue, 8 Dec 2020 08:03:04 +0100 +Subject: [PATCH 2/4] arm64: dts: broadcom: bcm4908: add BCM4906 Netgear R8000P + DTS files +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +Netgear R8000P is home router based on BCM4906 that is a cheaper variant +of BCM4908 (e.g. 2 cores instead of 4). + +Signed-off-by: Rafał Miłecki <rafal@milecki.pl> +Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> +--- + arch/arm64/boot/dts/broadcom/bcm4908/Makefile | 1 + + .../bcm4908/bcm4906-netgear-r8000p.dts | 52 +++++++++++++++++++ + .../boot/dts/broadcom/bcm4908/bcm4906.dtsi | 18 +++++++ + 3 files changed, 71 insertions(+) + create mode 100644 arch/arm64/boot/dts/broadcom/bcm4908/bcm4906-netgear-r8000p.dts + create mode 100644 arch/arm64/boot/dts/broadcom/bcm4908/bcm4906.dtsi + +--- a/arch/arm64/boot/dts/broadcom/bcm4908/Makefile ++++ b/arch/arm64/boot/dts/broadcom/bcm4908/Makefile +@@ -1,2 +1,3 @@ + # SPDX-License-Identifier: GPL-2.0 ++dtb-$(CONFIG_ARCH_BCM4908) += bcm4906-netgear-r8000p.dtb + dtb-$(CONFIG_ARCH_BCM4908) += bcm4908-asus-gt-ac5300.dtb +--- /dev/null ++++ b/arch/arm64/boot/dts/broadcom/bcm4908/bcm4906-netgear-r8000p.dts +@@ -0,0 +1,52 @@ ++// SPDX-License-Identifier: GPL-2.0-or-later OR MIT ++ ++#include <dt-bindings/gpio/gpio.h> ++#include <dt-bindings/input/input.h> ++#include <dt-bindings/leds/common.h> ++ ++#include "bcm4906.dtsi" ++ ++/ { ++ compatible = "netgear,r8000p", "brcm,bcm4906", "brcm,bcm4908"; ++ model = "Netgear R8000P"; ++ ++ memory@0 { ++ device_type = "memory"; ++ reg = <0x00 0x00 0x00 0x20000000>; ++ }; ++ ++ leds { ++ compatible = "gpio-leds"; ++ ++ wps { ++ function = LED_FUNCTION_WPS; ++ color = <LED_COLOR_ID_WHITE>; ++ gpios = <&gpio0 10 GPIO_ACTIVE_LOW>; ++ }; ++ }; ++}; ++ ++&nandcs { ++ nand-ecc-strength = <4>; ++ nand-ecc-step-size = <512>; ++ nand-on-flash-bbt; ++ ++ #address-cells = <1>; ++ #size-cells = <0>; ++ ++ partitions { ++ compatible = "fixed-partitions"; ++ #address-cells = <1>; ++ #size-cells = <1>; ++ ++ partition@0 { ++ label = "cferom"; ++ reg = <0x0 0x100000>; ++ }; ++ ++ partition@100000 { ++ label = "firmware"; ++ reg = <0x100000 0x4400000>; ++ }; ++ }; ++}; +--- /dev/null ++++ b/arch/arm64/boot/dts/broadcom/bcm4908/bcm4906.dtsi +@@ -0,0 +1,18 @@ ++// SPDX-License-Identifier: GPL-2.0-or-later OR MIT ++ ++#include "bcm4908.dtsi" ++ ++/ { ++ cpus { ++ /delete-node/ cpu@2; ++ ++ /delete-node/ cpu@3; ++ }; ++ ++ pmu { ++ compatible = "arm,cortex-a53-pmu"; ++ interrupts = <GIC_SPI 9 IRQ_TYPE_LEVEL_HIGH>, ++ <GIC_SPI 10 IRQ_TYPE_LEVEL_HIGH>; ++ interrupt-affinity = <&cpu0>, <&cpu1>; ++ }; ++}; diff --git a/target/linux/bcm4908/patches-5.10/031-v5.12-0003-arm64-dts-broadcom-bcm4908-use-proper-NAND-binding.patch b/target/linux/bcm4908/patches-5.10/031-v5.12-0003-arm64-dts-broadcom-bcm4908-use-proper-NAND-binding.patch new file mode 100644 index 0000000000..ccd260fadf --- /dev/null +++ b/target/linux/bcm4908/patches-5.10/031-v5.12-0003-arm64-dts-broadcom-bcm4908-use-proper-NAND-binding.patch @@ -0,0 +1,32 @@ +From 56098be85d19cd56b59d7b3854ea035cc8cb9e95 Mon Sep 17 00:00:00 2001 +From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl> +Date: Tue, 8 Dec 2020 11:49:50 +0100 +Subject: [PATCH 3/4] arm64: dts: broadcom: bcm4908: use proper NAND binding +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +BCM4908 has controller that needs different IRQ handling just like the +BCM63138. Describe it properly. + +On Linux this change fixes: +brcmstb_nand ff801800.nand: timeout waiting for command 0x9 +brcmstb_nand ff801800.nand: intfc status d0000000 + +Signed-off-by: Rafał Miłecki <rafal@milecki.pl> +Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> +--- + arch/arm64/boot/dts/broadcom/bcm4908/bcm4908.dtsi | 2 +- + 1 file changed, 1 insertion(+), 1 deletion(-) + +--- a/arch/arm64/boot/dts/broadcom/bcm4908/bcm4908.dtsi ++++ b/arch/arm64/boot/dts/broadcom/bcm4908/bcm4908.dtsi +@@ -164,7 +164,7 @@ + nand@1800 { + #address-cells = <1>; + #size-cells = <0>; +- compatible = "brcm,brcmnand-v7.1", "brcm,brcmnand"; ++ compatible = "brcm,nand-bcm63138", "brcm,brcmnand-v7.1", "brcm,brcmnand"; + reg = <0x1800 0x600>, <0x2000 0x10>; + reg-names = "nand", "nand-int-base"; + interrupts = <GIC_SPI 37 IRQ_TYPE_LEVEL_HIGH>; diff --git a/target/linux/bcm4908/patches-5.10/031-v5.12-0004-arm64-dts-broadcom-bcm4908-describe-PCIe-reset-contr.patch b/target/linux/bcm4908/patches-5.10/031-v5.12-0004-arm64-dts-broadcom-bcm4908-describe-PCIe-reset-contr.patch new file mode 100644 index 0000000000..8ce4d69d8f --- /dev/null +++ b/target/linux/bcm4908/patches-5.10/031-v5.12-0004-arm64-dts-broadcom-bcm4908-describe-PCIe-reset-contr.patch @@ -0,0 +1,41 @@ +From 1b88c6ed26a1aa1d68d1661404e6e939709ff530 Mon Sep 17 00:00:00 2001 +From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl> +Date: Thu, 10 Dec 2020 08:21:54 +0100 +Subject: [PATCH 4/4] arm64: dts: broadcom: bcm4908: describe PCIe reset + controller +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +This reset controller is a single register in the Broadcom's MISC block. + +Signed-off-by: Rafał Miłecki <rafal@milecki.pl> +Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> +--- + arch/arm64/boot/dts/broadcom/bcm4908/bcm4908.dtsi | 15 +++++++++++++++ + 1 file changed, 15 insertions(+) + +--- a/arch/arm64/boot/dts/broadcom/bcm4908/bcm4908.dtsi ++++ b/arch/arm64/boot/dts/broadcom/bcm4908/bcm4908.dtsi +@@ -177,6 +177,21 @@ + }; + }; + ++ misc@2600 { ++ compatible = "brcm,misc", "simple-mfd"; ++ reg = <0x2600 0xe4>; ++ ++ #address-cells = <1>; ++ #size-cells = <1>; ++ ranges = <0x00 0x2600 0xe4>; ++ ++ reset-controller@2644 { ++ compatible = "brcm,bcm4908-misc-pcie-reset"; ++ reg = <0x44 0x04>; ++ #reset-cells = <1>; ++ }; ++ }; ++ + reboot { + compatible = "syscon-reboot"; + regmap = <&timer>; diff --git a/target/linux/bcm4908/patches-5.10/031-v5.12-0005-arm64-dts-broadcom-bcm4908-describe-internal-switch.patch b/target/linux/bcm4908/patches-5.10/031-v5.12-0005-arm64-dts-broadcom-bcm4908-describe-internal-switch.patch new file mode 100644 index 0000000000..f80dc239bc --- /dev/null +++ b/target/linux/bcm4908/patches-5.10/031-v5.12-0005-arm64-dts-broadcom-bcm4908-describe-internal-switch.patch @@ -0,0 +1,184 @@ +From 527a3ac9bdf81da4b7160ce3cea57f28a0e5eb64 Mon Sep 17 00:00:00 2001 +From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl> +Date: Wed, 13 Jan 2021 12:14:06 +0100 +Subject: [PATCH] arm64: dts: broadcom: bcm4908: describe internal switch +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +BCM4908 has internal switch with 5 GPHYs. Ports 0 - 3 are always +connected to the internal PHYs. Remaining ports depend on device setup. + +Asus GT-AC5300 has an extra switch with its PHYs accessible using the +internal MDIO. + +CPU port and Ethernet interface remain to be documented. + +Signed-off-by: Rafał Miłecki <rafal@milecki.pl> +Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> +--- + .../bcm4908/bcm4908-asus-gt-ac5300.dts | 51 +++++++++++ + .../boot/dts/broadcom/bcm4908/bcm4908.dtsi | 85 ++++++++++++++++++- + 2 files changed, 135 insertions(+), 1 deletion(-) + +--- a/arch/arm64/boot/dts/broadcom/bcm4908/bcm4908-asus-gt-ac5300.dts ++++ b/arch/arm64/boot/dts/broadcom/bcm4908/bcm4908-asus-gt-ac5300.dts +@@ -44,6 +44,57 @@ + }; + }; + ++&ports { ++ port@0 { ++ label = "lan2"; ++ }; ++ ++ port@1 { ++ label = "lan1"; ++ }; ++ ++ port@2 { ++ label = "lan6"; ++ }; ++ ++ port@3 { ++ label = "lan5"; ++ }; ++ ++ /* External BCM53134S switch */ ++ port@7 { ++ label = "sw"; ++ reg = <7>; ++ ++ fixed-link { ++ speed = <1000>; ++ full-duplex; ++ }; ++ }; ++}; ++ ++&mdio { ++ /* lan8 */ ++ ethernet-phy@0 { ++ reg = <0>; ++ }; ++ ++ /* lan7 */ ++ ethernet-phy@1 { ++ reg = <1>; ++ }; ++ ++ /* lan4 */ ++ ethernet-phy@2 { ++ reg = <2>; ++ }; ++ ++ /* lan3 */ ++ ethernet-phy@3 { ++ reg = <3>; ++ }; ++}; ++ + &nandcs { + nand-ecc-strength = <4>; + nand-ecc-step-size = <512>; +--- a/arch/arm64/boot/dts/broadcom/bcm4908/bcm4908.dtsi ++++ b/arch/arm64/boot/dts/broadcom/bcm4908/bcm4908.dtsi +@@ -108,7 +108,7 @@ + compatible = "simple-bus"; + #address-cells = <1>; + #size-cells = <1>; +- ranges = <0x00 0x00 0x80000000 0x10000>; ++ ranges = <0x00 0x00 0x80000000 0xd0000>; + + usb@c300 { + compatible = "generic-ehci"; +@@ -130,6 +130,89 @@ + interrupts = <GIC_SPI 74 IRQ_TYPE_LEVEL_HIGH>; + status = "disabled"; + }; ++ ++ ethernet-switch@80000 { ++ compatible = "simple-bus"; ++ #size-cells = <1>; ++ #address-cells = <1>; ++ ranges = <0 0x80000 0x50000>; ++ ++ ethernet-switch@0 { ++ compatible = "brcm,bcm4908-switch"; ++ reg = <0x0 0x40000>, ++ <0x40000 0x110>, ++ <0x40340 0x30>, ++ <0x40380 0x30>, ++ <0x40600 0x34>, ++ <0x40800 0x208>; ++ reg-names = "core", "reg", "intrl2_0", ++ "intrl2_1", "fcb", "acb"; ++ interrupts = <GIC_SPI 57 IRQ_TYPE_LEVEL_HIGH>, ++ <GIC_SPI 58 IRQ_TYPE_LEVEL_HIGH>; ++ brcm,num-gphy = <5>; ++ brcm,num-rgmii-ports = <2>; ++ ++ #address-cells = <1>; ++ #size-cells = <0>; ++ ++ ports: ports { ++ #address-cells = <1>; ++ #size-cells = <0>; ++ ++ port@0 { ++ reg = <0>; ++ phy-mode = "internal"; ++ phy-handle = <&phy8>; ++ }; ++ ++ port@1 { ++ reg = <1>; ++ phy-mode = "internal"; ++ phy-handle = <&phy9>; ++ }; ++ ++ port@2 { ++ reg = <2>; ++ phy-mode = "internal"; ++ phy-handle = <&phy10>; ++ }; ++ ++ port@3 { ++ reg = <3>; ++ phy-mode = "internal"; ++ phy-handle = <&phy11>; ++ }; ++ }; ++ }; ++ ++ mdio: mdio@405c0 { ++ compatible = "brcm,unimac-mdio"; ++ reg = <0x405c0 0x8>; ++ reg-names = "mdio"; ++ #size-cells = <0>; ++ #address-cells = <1>; ++ ++ phy8: ethernet-phy@8 { ++ reg = <8>; ++ }; ++ ++ phy9: ethernet-phy@9 { ++ reg = <9>; ++ }; ++ ++ phy10: ethernet-phy@a { ++ reg = <10>; ++ }; ++ ++ phy11: ethernet-phy@b { ++ reg = <11>; ++ }; ++ ++ phy12: ethernet-phy@c { ++ reg = <12>; ++ }; ++ }; ++ }; + }; + + bus@ff800000 { diff --git a/target/linux/bcm4908/patches-5.10/031-v5.12-0006-arm64-dts-broadcom-bcm4908-describe-PMB-block.patch b/target/linux/bcm4908/patches-5.10/031-v5.12-0006-arm64-dts-broadcom-bcm4908-describe-PMB-block.patch new file mode 100644 index 0000000000..c1a9c35837 --- /dev/null +++ b/target/linux/bcm4908/patches-5.10/031-v5.12-0006-arm64-dts-broadcom-bcm4908-describe-PMB-block.patch @@ -0,0 +1,50 @@ +From edcf90801c8e58bd6306d85a4e714a6f09f452df Mon Sep 17 00:00:00 2001 +From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl> +Date: Wed, 13 Jan 2021 12:15:47 +0100 +Subject: [PATCH] arm64: dts: broadcom: bcm4908: describe PMB block +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +PMB (Power Management Bus) controls powering connected devices (e.g. +PCIe, USB, SATA). In BCM4908 it's a part of the PROCMON block. + +Signed-off-by: Rafał Miłecki <rafal@milecki.pl> +Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> +--- + .../boot/dts/broadcom/bcm4908/bcm4908.dtsi | 17 ++++++++++++++++- + 1 file changed, 16 insertions(+), 1 deletion(-) + +--- a/arch/arm64/boot/dts/broadcom/bcm4908/bcm4908.dtsi ++++ b/arch/arm64/boot/dts/broadcom/bcm4908/bcm4908.dtsi +@@ -108,7 +108,7 @@ + compatible = "simple-bus"; + #address-cells = <1>; + #size-cells = <1>; +- ranges = <0x00 0x00 0x80000000 0xd0000>; ++ ranges = <0x00 0x00 0x80000000 0x281000>; + + usb@c300 { + compatible = "generic-ehci"; +@@ -213,6 +213,21 @@ + }; + }; + }; ++ ++ procmon: syscon@280000 { ++ compatible = "simple-bus"; ++ reg = <0x280000 0x1000>; ++ ranges; ++ ++ #address-cells = <1>; ++ #size-cells = <1>; ++ ++ power-controller@2800c0 { ++ compatible = "brcm,bcm4908-pmb"; ++ reg = <0x2800c0 0x40>; ++ #power-domain-cells = <1>; ++ }; ++ }; + }; + + bus@ff800000 { diff --git a/target/linux/bcm4908/patches-5.10/032-v5.13-0001-arm64-dts-broadcom-bcm4908-describe-USB-PHY.patch b/target/linux/bcm4908/patches-5.10/032-v5.13-0001-arm64-dts-broadcom-bcm4908-describe-USB-PHY.patch new file mode 100644 index 0000000000..edf2ca6a38 --- /dev/null +++ b/target/linux/bcm4908/patches-5.10/032-v5.13-0001-arm64-dts-broadcom-bcm4908-describe-USB-PHY.patch @@ -0,0 +1,134 @@ +From 3c321ba794ca6383a4aa68ea803e18cc6ad44412 Mon Sep 17 00:00:00 2001 +From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl> +Date: Fri, 19 Feb 2021 06:50:26 +0100 +Subject: [PATCH] arm64: dts: broadcom: bcm4908: describe USB PHY +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +BCM4908 uses slightly modified STB family USB PHY. It handles OHCI/EHCI +and XHCI. It requires powering up using the PMB. + +Signed-off-by: Rafał Miłecki <rafal@milecki.pl> +Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> +--- + .../bcm4908/bcm4906-netgear-r8000p.dts | 17 +++++++++++++ + .../bcm4908/bcm4908-asus-gt-ac5300.dts | 17 +++++++++++++ + .../boot/dts/broadcom/bcm4908/bcm4908.dtsi | 25 ++++++++++++++++--- + 3 files changed, 55 insertions(+), 4 deletions(-) + +--- a/arch/arm64/boot/dts/broadcom/bcm4908/bcm4906-netgear-r8000p.dts ++++ b/arch/arm64/boot/dts/broadcom/bcm4908/bcm4906-netgear-r8000p.dts +@@ -26,6 +26,23 @@ + }; + }; + ++&usb_phy { ++ brcm,ioc = <1>; ++ status = "okay"; ++}; ++ ++&ehci { ++ status = "okay"; ++}; ++ ++&ohci { ++ status = "okay"; ++}; ++ ++&xhci { ++ status = "okay"; ++}; ++ + &nandcs { + nand-ecc-strength = <4>; + nand-ecc-step-size = <512>; +--- a/arch/arm64/boot/dts/broadcom/bcm4908/bcm4908-asus-gt-ac5300.dts ++++ b/arch/arm64/boot/dts/broadcom/bcm4908/bcm4908-asus-gt-ac5300.dts +@@ -44,6 +44,23 @@ + }; + }; + ++&usb_phy { ++ brcm,ioc = <1>; ++ status = "okay"; ++}; ++ ++&ehci { ++ status = "okay"; ++}; ++ ++&ohci { ++ status = "okay"; ++}; ++ ++&xhci { ++ status = "okay"; ++}; ++ + &ports { + port@0 { + label = "lan2"; +--- a/arch/arm64/boot/dts/broadcom/bcm4908/bcm4908.dtsi ++++ b/arch/arm64/boot/dts/broadcom/bcm4908/bcm4908.dtsi +@@ -2,6 +2,8 @@ + + #include <dt-bindings/interrupt-controller/irq.h> + #include <dt-bindings/interrupt-controller/arm-gic.h> ++#include <dt-bindings/phy/phy.h> ++#include <dt-bindings/soc/bcm-pmb.h> + + /dts-v1/; + +@@ -110,24 +112,39 @@ + #size-cells = <1>; + ranges = <0x00 0x00 0x80000000 0x281000>; + +- usb@c300 { ++ usb_phy: usb-phy@c200 { ++ compatible = "brcm,bcm4908-usb-phy"; ++ reg = <0xc200 0x100>; ++ reg-names = "ctrl"; ++ power-domains = <&pmb BCM_PMB_HOST_USB>; ++ dr_mode = "host"; ++ brcm,has-xhci; ++ brcm,has-eohci; ++ #phy-cells = <1>; ++ status = "disabled"; ++ }; ++ ++ ehci: usb@c300 { + compatible = "generic-ehci"; + reg = <0xc300 0x100>; + interrupts = <GIC_SPI 73 IRQ_TYPE_LEVEL_HIGH>; ++ phys = <&usb_phy PHY_TYPE_USB2>; + status = "disabled"; + }; + +- usb@c400 { ++ ohci: usb@c400 { + compatible = "generic-ohci"; + reg = <0xc400 0x100>; + interrupts = <GIC_SPI 72 IRQ_TYPE_LEVEL_HIGH>; ++ phys = <&usb_phy PHY_TYPE_USB2>; + status = "disabled"; + }; + +- usb@d000 { ++ xhci: usb@d000 { + compatible = "generic-xhci"; + reg = <0xd000 0x8c8>; + interrupts = <GIC_SPI 74 IRQ_TYPE_LEVEL_HIGH>; ++ phys = <&usb_phy PHY_TYPE_USB3>; + status = "disabled"; + }; + +@@ -222,7 +239,7 @@ + #address-cells = <1>; + #size-cells = <1>; + +- power-controller@2800c0 { ++ pmb: power-controller@2800c0 { + compatible = "brcm,bcm4908-pmb"; + reg = <0x2800c0 0x40>; + #power-domain-cells = <1>; diff --git a/target/linux/bcm4908/patches-5.10/032-v5.13-0002-arm64-dts-broadcom-bcm4908-describe-Ethernet-control.patch b/target/linux/bcm4908/patches-5.10/032-v5.13-0002-arm64-dts-broadcom-bcm4908-describe-Ethernet-control.patch new file mode 100644 index 0000000000..6c41e3d797 --- /dev/null +++ b/target/linux/bcm4908/patches-5.10/032-v5.13-0002-arm64-dts-broadcom-bcm4908-describe-Ethernet-control.patch @@ -0,0 +1,51 @@ +From b1bbe48eec190b6a35f400c5a3ec6b0fc8fc3fe6 Mon Sep 17 00:00:00 2001 +From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl> +Date: Fri, 19 Feb 2021 06:50:27 +0100 +Subject: [PATCH] arm64: dts: broadcom: bcm4908: describe Ethernet controller +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +BCM4908 SoCs have an integrated Ethernet controller. + +Signed-off-by: Rafał Miłecki <rafal@milecki.pl> +Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> +--- + .../boot/dts/broadcom/bcm4908/bcm4908.dtsi | 19 +++++++++++++++++++ + 1 file changed, 19 insertions(+) + +--- a/arch/arm64/boot/dts/broadcom/bcm4908/bcm4908.dtsi ++++ b/arch/arm64/boot/dts/broadcom/bcm4908/bcm4908.dtsi +@@ -112,6 +112,14 @@ + #size-cells = <1>; + ranges = <0x00 0x00 0x80000000 0x281000>; + ++ enet: ethernet@2000 { ++ compatible = "brcm,bcm4908-enet"; ++ reg = <0x2000 0x1000>; ++ ++ interrupts = <GIC_SPI 86 IRQ_TYPE_LEVEL_HIGH>; ++ interrupt-names = "rx"; ++ }; ++ + usb_phy: usb-phy@c200 { + compatible = "brcm,bcm4908-usb-phy"; + reg = <0xc200 0x100>; +@@ -199,6 +207,17 @@ + phy-mode = "internal"; + phy-handle = <&phy11>; + }; ++ ++ port@8 { ++ reg = <8>; ++ phy-mode = "internal"; ++ ethernet = <&enet>; ++ ++ fixed-link { ++ speed = <1000>; ++ full-duplex; ++ }; ++ }; + }; + }; + diff --git a/target/linux/bcm4908/patches-5.10/032-v5.13-0003-arm64-dts-broadcom-bcm4908-describe-Netgear-R8000P-s.patch b/target/linux/bcm4908/patches-5.10/032-v5.13-0003-arm64-dts-broadcom-bcm4908-describe-Netgear-R8000P-s.patch new file mode 100644 index 0000000000..9c7f9cee6c --- /dev/null +++ b/target/linux/bcm4908/patches-5.10/032-v5.13-0003-arm64-dts-broadcom-bcm4908-describe-Netgear-R8000P-s.patch @@ -0,0 +1,50 @@ +From 406e98afffe975982f63ea5d21bf9a47a81b56ee Mon Sep 17 00:00:00 2001 +From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl> +Date: Fri, 19 Feb 2021 06:50:28 +0100 +Subject: [PATCH] arm64: dts: broadcom: bcm4908: describe Netgear R8000P switch +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +R8000P model has 4 LAN ports and 1 WAN port. + +Signed-off-by: Rafał Miłecki <rafal@milecki.pl> +Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> +--- + .../bcm4908/bcm4906-netgear-r8000p.dts | 25 +++++++++++++++++++ + 1 file changed, 25 insertions(+) + +--- a/arch/arm64/boot/dts/broadcom/bcm4908/bcm4906-netgear-r8000p.dts ++++ b/arch/arm64/boot/dts/broadcom/bcm4908/bcm4906-netgear-r8000p.dts +@@ -43,6 +43,31 @@ + status = "okay"; + }; + ++&ports { ++ port@0 { ++ label = "lan4"; ++ }; ++ ++ port@1 { ++ label = "lan3"; ++ }; ++ ++ port@2 { ++ label = "lan2"; ++ }; ++ ++ port@3 { ++ label = "lan1"; ++ }; ++ ++ port@7 { ++ reg = <7>; ++ phy-mode = "internal"; ++ phy-handle = <&phy12>; ++ label = "wan"; ++ }; ++}; ++ + &nandcs { + nand-ecc-strength = <4>; + nand-ecc-step-size = <512>; diff --git a/target/linux/bcm4908/patches-5.10/032-v5.13-0004-arm64-dts-broadcom-bcm4908-add-remaining-Netgear-R80.patch b/target/linux/bcm4908/patches-5.10/032-v5.13-0004-arm64-dts-broadcom-bcm4908-add-remaining-Netgear-R80.patch new file mode 100644 index 0000000000..56249c82f8 --- /dev/null +++ b/target/linux/bcm4908/patches-5.10/032-v5.13-0004-arm64-dts-broadcom-bcm4908-add-remaining-Netgear-R80.patch @@ -0,0 +1,81 @@ +From 6224415c0389ba6661825746312163a64ece8f3a Mon Sep 17 00:00:00 2001 +From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl> +Date: Fri, 19 Feb 2021 06:50:29 +0100 +Subject: [PATCH] arm64: dts: broadcom: bcm4908: add remaining Netgear R8000P + LEDs +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +There are a few more GPIO connected LEDs there didn't get described +initially. + +Signed-off-by: Rafał Miłecki <rafal@milecki.pl> +Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> +--- + .../bcm4908/bcm4906-netgear-r8000p.dts | 50 ++++++++++++++++++- + 1 file changed, 49 insertions(+), 1 deletion(-) + +--- a/arch/arm64/boot/dts/broadcom/bcm4908/bcm4906-netgear-r8000p.dts ++++ b/arch/arm64/boot/dts/broadcom/bcm4908/bcm4906-netgear-r8000p.dts +@@ -18,11 +18,59 @@ + leds { + compatible = "gpio-leds"; + +- wps { ++ led-power-white { ++ function = LED_FUNCTION_POWER; ++ color = <LED_COLOR_ID_WHITE>; ++ gpios = <&gpio0 8 GPIO_ACTIVE_LOW>; ++ }; ++ ++ led-power-amber { ++ function = LED_FUNCTION_POWER; ++ color = <LED_COLOR_ID_AMBER>; ++ gpios = <&gpio0 9 GPIO_ACTIVE_LOW>; ++ }; ++ ++ led-wps { + function = LED_FUNCTION_WPS; + color = <LED_COLOR_ID_WHITE>; + gpios = <&gpio0 10 GPIO_ACTIVE_LOW>; + }; ++ ++ led-2ghz { ++ function = "2ghz"; ++ color = <LED_COLOR_ID_WHITE>; ++ gpios = <&gpio0 14 GPIO_ACTIVE_LOW>; ++ }; ++ ++ led-5ghz-1 { ++ function = "5ghz-1"; ++ color = <LED_COLOR_ID_WHITE>; ++ gpios = <&gpio0 15 GPIO_ACTIVE_LOW>; ++ }; ++ ++ led-5ghz-2 { ++ function = "5ghz-2"; ++ color = <LED_COLOR_ID_WHITE>; ++ gpios = <&gpio0 16 GPIO_ACTIVE_LOW>; ++ }; ++ ++ led-usb2 { ++ function = "usb2"; ++ color = <LED_COLOR_ID_WHITE>; ++ gpios = <&gpio0 17 GPIO_ACTIVE_LOW>; ++ }; ++ ++ led-usb3 { ++ function = "usb3"; ++ color = <LED_COLOR_ID_WHITE>; ++ gpios = <&gpio0 18 GPIO_ACTIVE_LOW>; ++ }; ++ ++ led-wifi { ++ function = "wifi"; ++ color = <LED_COLOR_ID_WHITE>; ++ gpios = <&gpio0 56 GPIO_ACTIVE_LOW>; ++ }; + }; + }; + diff --git a/target/linux/bcm4908/patches-5.10/032-v5.13-0005-arm64-dts-broadcom-bcm4908-describe-firmware-partiti.patch b/target/linux/bcm4908/patches-5.10/032-v5.13-0005-arm64-dts-broadcom-bcm4908-describe-firmware-partiti.patch new file mode 100644 index 0000000000..d03adc1743 --- /dev/null +++ b/target/linux/bcm4908/patches-5.10/032-v5.13-0005-arm64-dts-broadcom-bcm4908-describe-firmware-partiti.patch @@ -0,0 +1,55 @@ +From cbaca2c467dc25a163107e14a53b7925214eab17 Mon Sep 17 00:00:00 2001 +From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl> +Date: Fri, 19 Feb 2021 06:50:30 +0100 +Subject: [PATCH] arm64: dts: broadcom: bcm4908: describe firmware partitions +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +BCM4908 bootloader supports multiple firmware partitions and has its own +bindings defined for them. + +Signed-off-by: Rafał Miłecki <rafal@milecki.pl> +Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> +--- + .../dts/broadcom/bcm4908/bcm4906-netgear-r8000p.dts | 1 + + .../dts/broadcom/bcm4908/bcm4908-asus-gt-ac5300.dts | 12 +++++++++++- + 2 files changed, 12 insertions(+), 1 deletion(-) + +--- a/arch/arm64/boot/dts/broadcom/bcm4908/bcm4906-netgear-r8000p.dts ++++ b/arch/arm64/boot/dts/broadcom/bcm4908/bcm4906-netgear-r8000p.dts +@@ -135,6 +135,7 @@ + }; + + partition@100000 { ++ compatible = "brcm,bcm4908-firmware"; + label = "firmware"; + reg = <0x100000 0x4400000>; + }; +--- a/arch/arm64/boot/dts/broadcom/bcm4908/bcm4908-asus-gt-ac5300.dts ++++ b/arch/arm64/boot/dts/broadcom/bcm4908/bcm4908-asus-gt-ac5300.dts +@@ -122,7 +122,7 @@ + #size-cells = <0>; + + partitions { +- compatible = "fixed-partitions"; ++ compatible = "brcm,bcm4908-partitions"; + #address-cells = <1>; + #size-cells = <1>; + +@@ -130,5 +130,15 @@ + label = "cferom"; + reg = <0x0 0x100000>; + }; ++ ++ partition@100000 { ++ compatible = "brcm,bcm4908-firmware"; ++ reg = <0x100000 0x5700000>; ++ }; ++ ++ partition@5800000 { ++ compatible = "brcm,bcm4908-firmware"; ++ reg = <0x5800000 0x5700000>; ++ }; + }; + }; diff --git a/target/linux/bcm4908/patches-5.10/032-v5.13-0006-arm64-dts-broadcom-bcm4908-fix-switch-parent-node-na.patch b/target/linux/bcm4908/patches-5.10/032-v5.13-0006-arm64-dts-broadcom-bcm4908-fix-switch-parent-node-na.patch new file mode 100644 index 0000000000..8b95fc2759 --- /dev/null +++ b/target/linux/bcm4908/patches-5.10/032-v5.13-0006-arm64-dts-broadcom-bcm4908-fix-switch-parent-node-na.patch @@ -0,0 +1,30 @@ +From a348ff97ffb840b9d74b0e64b3e0e6002187d224 Mon Sep 17 00:00:00 2001 +From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl> +Date: Tue, 9 Mar 2021 19:44:09 +0100 +Subject: [PATCH] arm64: dts: broadcom: bcm4908: fix switch parent node name +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +Ethernet switch and MDIO are grouped using "simple-bus". It's not +allowed to use "ethernet-switch" node name as it isn't a switch. Replace +it with "bus". + +Fixes: 527a3ac9bdf8 ("arm64: dts: broadcom: bcm4908: describe internal switch") +Signed-off-by: Rafał Miłecki <rafal@milecki.pl> +Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> +--- + arch/arm64/boot/dts/broadcom/bcm4908/bcm4908.dtsi | 2 +- + 1 file changed, 1 insertion(+), 1 deletion(-) + +--- a/arch/arm64/boot/dts/broadcom/bcm4908/bcm4908.dtsi ++++ b/arch/arm64/boot/dts/broadcom/bcm4908/bcm4908.dtsi +@@ -156,7 +156,7 @@ + status = "disabled"; + }; + +- ethernet-switch@80000 { ++ bus@80000 { + compatible = "simple-bus"; + #size-cells = <1>; + #address-cells = <1>; diff --git a/target/linux/bcm4908/patches-5.10/032-v5.13-0007-dt-bindings-arm-bcm-document-TP-Link-Archer-C2300-bi.patch b/target/linux/bcm4908/patches-5.10/032-v5.13-0007-dt-bindings-arm-bcm-document-TP-Link-Archer-C2300-bi.patch new file mode 100644 index 0000000000..07d4121ef1 --- /dev/null +++ b/target/linux/bcm4908/patches-5.10/032-v5.13-0007-dt-bindings-arm-bcm-document-TP-Link-Archer-C2300-bi.patch @@ -0,0 +1,27 @@ +From b3de2a12d1a61d90a4d86c9840acc7d05066137f Mon Sep 17 00:00:00 2001 +From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl> +Date: Wed, 10 Mar 2021 08:46:02 +0100 +Subject: [PATCH] dt-bindings: arm: bcm: document TP-Link Archer C2300 binding +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +One more BCM4906 based device. + +Signed-off-by: Rafał Miłecki <rafal@milecki.pl> +Reviewed-by: Rob Herring <robh@kernel.org> +Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> +--- + Documentation/devicetree/bindings/arm/bcm/brcm,bcm4908.yaml | 1 + + 1 file changed, 1 insertion(+) + +--- a/Documentation/devicetree/bindings/arm/bcm/brcm,bcm4908.yaml ++++ b/Documentation/devicetree/bindings/arm/bcm/brcm,bcm4908.yaml +@@ -21,6 +21,7 @@ properties: + items: + - enum: + - netgear,r8000p ++ - tplink,archer-c2300-v1 + - const: brcm,bcm4906 + - const: brcm,bcm4908 + diff --git a/target/linux/bcm4908/patches-5.10/032-v5.13-0008-arm64-dts-broadcom-bcm4908-add-TP-Link-Archer-C2300-.patch b/target/linux/bcm4908/patches-5.10/032-v5.13-0008-arm64-dts-broadcom-bcm4908-add-TP-Link-Archer-C2300-.patch new file mode 100644 index 0000000000..0dd7f2301f --- /dev/null +++ b/target/linux/bcm4908/patches-5.10/032-v5.13-0008-arm64-dts-broadcom-bcm4908-add-TP-Link-Archer-C2300-.patch @@ -0,0 +1,212 @@ +From 6a30934a5470a0ce7ea32b0c6b600accfae94b1a Mon Sep 17 00:00:00 2001 +From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl> +Date: Wed, 10 Mar 2021 08:46:03 +0100 +Subject: [PATCH] arm64: dts: broadcom: bcm4908: add TP-Link Archer C2300 V1 +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +Archer C2300 V1 is a home router based on the BCM4906 (2 CPU cores). It +has 512 MiB of RAM, NAND flash, USB 2.0 and USB 3.0 ports, 4 LAN ports, +1 WAN port. + +Signed-off-by: Rafał Miłecki <rafal@milecki.pl> +Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> +--- + arch/arm64/boot/dts/broadcom/bcm4908/Makefile | 1 + + .../bcm4906-tplink-archer-c2300-v1.dts | 182 ++++++++++++++++++ + 2 files changed, 183 insertions(+) + create mode 100644 arch/arm64/boot/dts/broadcom/bcm4908/bcm4906-tplink-archer-c2300-v1.dts + +--- a/arch/arm64/boot/dts/broadcom/bcm4908/Makefile ++++ b/arch/arm64/boot/dts/broadcom/bcm4908/Makefile +@@ -1,3 +1,4 @@ + # SPDX-License-Identifier: GPL-2.0 + dtb-$(CONFIG_ARCH_BCM4908) += bcm4906-netgear-r8000p.dtb ++dtb-$(CONFIG_ARCH_BCM4908) += bcm4906-tplink-archer-c2300-v1.dtb + dtb-$(CONFIG_ARCH_BCM4908) += bcm4908-asus-gt-ac5300.dtb +--- /dev/null ++++ b/arch/arm64/boot/dts/broadcom/bcm4908/bcm4906-tplink-archer-c2300-v1.dts +@@ -0,0 +1,182 @@ ++// SPDX-License-Identifier: GPL-2.0-or-later OR MIT ++ ++#include <dt-bindings/gpio/gpio.h> ++#include <dt-bindings/input/input.h> ++#include <dt-bindings/leds/common.h> ++ ++#include "bcm4906.dtsi" ++ ++/ { ++ compatible = "tplink,archer-c2300-v1", "brcm,bcm4906", "brcm,bcm4908"; ++ model = "TP-Link Archer C2300 V1"; ++ ++ memory@0 { ++ device_type = "memory"; ++ reg = <0x00 0x00 0x00 0x20000000>; ++ }; ++ ++ leds { ++ compatible = "gpio-leds"; ++ ++ led-power { ++ function = LED_FUNCTION_POWER; ++ color = <LED_COLOR_ID_BLUE>; ++ gpios = <&gpio0 0 GPIO_ACTIVE_LOW>; ++ }; ++ ++ led-2ghz { ++ function = "2ghz"; ++ color = <LED_COLOR_ID_BLUE>; ++ gpios = <&gpio0 2 GPIO_ACTIVE_LOW>; ++ }; ++ ++ led-5ghz { ++ function = "5ghz"; ++ color = <LED_COLOR_ID_BLUE>; ++ gpios = <&gpio0 3 GPIO_ACTIVE_LOW>; ++ }; ++ ++ led-wan-amber { ++ function = LED_FUNCTION_WAN; ++ color = <LED_COLOR_ID_AMBER>; ++ gpios = <&gpio0 4 GPIO_ACTIVE_HIGH>; ++ }; ++ ++ led-wan-blue { ++ function = LED_FUNCTION_WAN; ++ color = <LED_COLOR_ID_BLUE>; ++ gpios = <&gpio0 10 GPIO_ACTIVE_LOW>; ++ }; ++ ++ led-lan { ++ function = LED_FUNCTION_LAN; ++ color = <LED_COLOR_ID_BLUE>; ++ gpios = <&gpio0 12 GPIO_ACTIVE_LOW>; ++ }; ++ ++ led-wps { ++ function = LED_FUNCTION_WPS; ++ color = <LED_COLOR_ID_BLUE>; ++ gpios = <&gpio0 14 GPIO_ACTIVE_LOW>; ++ }; ++ ++ led-usb2 { ++ function = "usb2"; ++ color = <LED_COLOR_ID_BLUE>; ++ gpios = <&gpio0 15 GPIO_ACTIVE_LOW>; ++ }; ++ ++ led-usb3 { ++ function = "usbd3"; ++ color = <LED_COLOR_ID_BLUE>; ++ gpios = <&gpio0 17 GPIO_ACTIVE_LOW>; ++ }; ++ ++ led-brightness { ++ function = LED_FUNCTION_BACKLIGHT; ++ color = <LED_COLOR_ID_WHITE>; ++ gpios = <&gpio0 19 GPIO_ACTIVE_LOW>; ++ }; ++ }; ++ ++ gpio-keys-polled { ++ compatible = "gpio-keys-polled"; ++ poll-interval = <100>; ++ ++ brightness { ++ label = "LEDs"; ++ linux,code = <KEY_BRIGHTNESS_ZERO>; ++ gpios = <&gpio0 18 GPIO_ACTIVE_LOW>; ++ }; ++ ++ wps { ++ label = "WPS"; ++ linux,code = <KEY_WPS_BUTTON>; ++ gpios = <&gpio0 21 GPIO_ACTIVE_LOW>; ++ }; ++ ++ wifi { ++ label = "WiFi"; ++ linux,code = <KEY_RFKILL>; ++ gpios = <&gpio0 22 GPIO_ACTIVE_LOW>; ++ }; ++ ++ restart { ++ label = "Reset"; ++ linux,code = <KEY_RESTART>; ++ gpios = <&gpio0 23 GPIO_ACTIVE_LOW>; ++ }; ++ }; ++}; ++ ++&usb_phy { ++ brcm,ioc = <1>; ++ status = "okay"; ++}; ++ ++&ehci { ++ status = "okay"; ++}; ++ ++&ohci { ++ status = "okay"; ++}; ++ ++&xhci { ++ status = "okay"; ++}; ++ ++&ports { ++ port@0 { ++ label = "lan4"; ++ }; ++ ++ port@1 { ++ label = "lan3"; ++ }; ++ ++ port@2 { ++ label = "lan2"; ++ }; ++ ++ port@3 { ++ label = "lan1"; ++ }; ++ ++ port@7 { ++ reg = <7>; ++ phy-mode = "internal"; ++ phy-handle = <&phy12>; ++ label = "wan"; ++ }; ++}; ++ ++&nandcs { ++ nand-ecc-strength = <4>; ++ nand-ecc-step-size = <512>; ++ nand-on-flash-bbt; ++ ++ #address-cells = <1>; ++ #size-cells = <0>; ++ ++ partitions { ++ compatible = "brcm,bcm4908-partitions"; ++ #address-cells = <1>; ++ #size-cells = <1>; ++ ++ partition@0 { ++ label = "cferom"; ++ reg = <0x0 0x100000>; ++ }; ++ ++ partition@100000 { ++ compatible = "brcm,bcm4908-firmware"; ++ reg = <0x100000 0x3900000>; ++ }; ++ ++ partition@5800000 { ++ compatible = "brcm,bcm4908-firmware"; ++ reg = <0x3a00000 0x3900000>; ++ }; ++ }; ++}; diff --git a/target/linux/bcm4908/patches-5.10/032-v5.13-0009-arm64-dts-broadcom-bcm4908-set-Asus-GT-AC5300-port-7.patch b/target/linux/bcm4908/patches-5.10/032-v5.13-0009-arm64-dts-broadcom-bcm4908-set-Asus-GT-AC5300-port-7.patch new file mode 100644 index 0000000000..30def36c39 --- /dev/null +++ b/target/linux/bcm4908/patches-5.10/032-v5.13-0009-arm64-dts-broadcom-bcm4908-set-Asus-GT-AC5300-port-7.patch @@ -0,0 +1,28 @@ +From 5ccb9f9cf05bbd729430c6d6d30d40c96a15c56a Mon Sep 17 00:00:00 2001 +From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl> +Date: Fri, 12 Mar 2021 12:01:20 +0100 +Subject: [PATCH] arm64: dts: broadcom: bcm4908: set Asus GT-AC5300 port 7 PHY + mode +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +Port 7 is connected to the external BCM53134S switch using RGMII. + +Fixes: 527a3ac9bdf8 ("arm64: dts: broadcom: bcm4908: describe internal switch") +Signed-off-by: Rafał Miłecki <rafal@milecki.pl> +Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> +--- + arch/arm64/boot/dts/broadcom/bcm4908/bcm4908-asus-gt-ac5300.dts | 1 + + 1 file changed, 1 insertion(+) + +--- a/arch/arm64/boot/dts/broadcom/bcm4908/bcm4908-asus-gt-ac5300.dts ++++ b/arch/arm64/boot/dts/broadcom/bcm4908/bcm4908-asus-gt-ac5300.dts +@@ -82,6 +82,7 @@ + port@7 { + label = "sw"; + reg = <7>; ++ phy-mode = "rgmii"; + + fixed-link { + speed = <1000>; diff --git a/target/linux/bcm4908/patches-5.10/032-v5.13-0010-arm64-dts-broadcom-bcm4908-add-Ethernet-TX-irq.patch b/target/linux/bcm4908/patches-5.10/032-v5.13-0010-arm64-dts-broadcom-bcm4908-add-Ethernet-TX-irq.patch new file mode 100644 index 0000000000..9ba30b3a14 --- /dev/null +++ b/target/linux/bcm4908/patches-5.10/032-v5.13-0010-arm64-dts-broadcom-bcm4908-add-Ethernet-TX-irq.patch @@ -0,0 +1,30 @@ +From 5337af7918bedde9713cd223ce5df74b3d6c7d7a Mon Sep 17 00:00:00 2001 +From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl> +Date: Wed, 17 Mar 2021 09:16:31 +0100 +Subject: [PATCH] arm64: dts: broadcom: bcm4908: add Ethernet TX irq +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +This hardware supports two interrupts, one per DMA channel (RX and TX). + +Signed-off-by: Rafał Miłecki <rafal@milecki.pl> +Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> +--- + arch/arm64/boot/dts/broadcom/bcm4908/bcm4908.dtsi | 5 +++-- + 1 file changed, 3 insertions(+), 2 deletions(-) + +--- a/arch/arm64/boot/dts/broadcom/bcm4908/bcm4908.dtsi ++++ b/arch/arm64/boot/dts/broadcom/bcm4908/bcm4908.dtsi +@@ -116,8 +116,9 @@ + compatible = "brcm,bcm4908-enet"; + reg = <0x2000 0x1000>; + +- interrupts = <GIC_SPI 86 IRQ_TYPE_LEVEL_HIGH>; +- interrupt-names = "rx"; ++ interrupts = <GIC_SPI 86 IRQ_TYPE_LEVEL_HIGH>, ++ <GIC_SPI 87 IRQ_TYPE_LEVEL_HIGH>; ++ interrupt-names = "rx", "tx"; + }; + + usb_phy: usb-phy@c200 { diff --git a/target/linux/bcm4908/patches-5.10/032-v5.13-0011-arm64-dts-broadcom-bcm4908-add-Ethernet-MAC-addr.patch b/target/linux/bcm4908/patches-5.10/032-v5.13-0011-arm64-dts-broadcom-bcm4908-add-Ethernet-MAC-addr.patch new file mode 100644 index 0000000000..67f30c8213 --- /dev/null +++ b/target/linux/bcm4908/patches-5.10/032-v5.13-0011-arm64-dts-broadcom-bcm4908-add-Ethernet-MAC-addr.patch @@ -0,0 +1,82 @@ +From 9f01f5cdb548352418b34ce77db02a560fe2913b Mon Sep 17 00:00:00 2001 +From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl> +Date: Mon, 29 Mar 2021 17:45:14 +0200 +Subject: [PATCH] arm64: dts: broadcom: bcm4908: add Ethernet MAC addr +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +On most BCM4908 devices MAC address can be read from the bootloader +binary section containing device settings. Use NVMEM to describe that. + +Signed-off-by: Rafał Miłecki <rafal@milecki.pl> +Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> +--- + .../broadcom/bcm4908/bcm4906-netgear-r8000p.dts | 14 ++++++++++++++ + .../broadcom/bcm4908/bcm4908-asus-gt-ac5300.dts | 14 ++++++++++++++ + 2 files changed, 28 insertions(+) + +--- a/arch/arm64/boot/dts/broadcom/bcm4908/bcm4906-netgear-r8000p.dts ++++ b/arch/arm64/boot/dts/broadcom/bcm4908/bcm4906-netgear-r8000p.dts +@@ -74,6 +74,11 @@ + }; + }; + ++&enet { ++ nvmem-cells = <&base_mac_addr>; ++ nvmem-cell-names = "mac-address"; ++}; ++ + &usb_phy { + brcm,ioc = <1>; + status = "okay"; +@@ -130,8 +135,17 @@ + #size-cells = <1>; + + partition@0 { ++ compatible = "nvmem-cells"; + label = "cferom"; + reg = <0x0 0x100000>; ++ ++ #address-cells = <1>; ++ #size-cells = <1>; ++ ranges = <0 0x0 0x100000>; ++ ++ base_mac_addr: mac@106a0 { ++ reg = <0x106a0 0x6>; ++ }; + }; + + partition@100000 { +--- a/arch/arm64/boot/dts/broadcom/bcm4908/bcm4908-asus-gt-ac5300.dts ++++ b/arch/arm64/boot/dts/broadcom/bcm4908/bcm4908-asus-gt-ac5300.dts +@@ -44,6 +44,11 @@ + }; + }; + ++&enet { ++ nvmem-cells = <&base_mac_addr>; ++ nvmem-cell-names = "mac-address"; ++}; ++ + &usb_phy { + brcm,ioc = <1>; + status = "okay"; +@@ -128,8 +133,17 @@ + #size-cells = <1>; + + partition@0 { ++ compatible = "nvmem-cells"; + label = "cferom"; + reg = <0x0 0x100000>; ++ ++ #address-cells = <1>; ++ #size-cells = <1>; ++ ranges = <0 0x0 0x100000>; ++ ++ base_mac_addr: mac@106a0 { ++ reg = <0x106a0 0x6>; ++ }; + }; + + partition@100000 { diff --git a/target/linux/bcm4908/patches-5.10/071-v5.12-0001-net-dsa-bcm_sf2-support-BCM4908-s-integrated-switch.patch b/target/linux/bcm4908/patches-5.10/071-v5.12-0001-net-dsa-bcm_sf2-support-BCM4908-s-integrated-switch.patch new file mode 100644 index 0000000000..e2f63e7fa0 --- /dev/null +++ b/target/linux/bcm4908/patches-5.10/071-v5.12-0001-net-dsa-bcm_sf2-support-BCM4908-s-integrated-switch.patch @@ -0,0 +1,141 @@ +From 73b7a6047971aa6ce4a70fc4901964d14f077171 Mon Sep 17 00:00:00 2001 +From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl> +Date: Wed, 6 Jan 2021 22:32:02 +0100 +Subject: [PATCH] net: dsa: bcm_sf2: support BCM4908's integrated switch +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +BCM4908 family SoCs come with integrated Starfighter 2 switch. Its +registers layout it a mix of BCM7278 and BCM7445. It has 5 integrated +PHYs and 8 ports. It also supports RGMII and SerDes. + +Signed-off-by: Rafał Miłecki <rafal@milecki.pl> +Acked-by: Florian Fainelli <f.fainelli@gmail.com> +Link: https://lore.kernel.org/r/20210106213202.17459-3-zajec5@gmail.com +Signed-off-by: Jakub Kicinski <kuba@kernel.org> +--- + drivers/net/dsa/b53/b53_common.c | 14 +++++++++++++ + drivers/net/dsa/b53/b53_priv.h | 1 + + drivers/net/dsa/bcm_sf2.c | 36 +++++++++++++++++++++++++++++--- + drivers/net/dsa/bcm_sf2_regs.h | 1 + + 4 files changed, 49 insertions(+), 3 deletions(-) + +--- a/drivers/net/dsa/b53/b53_common.c ++++ b/drivers/net/dsa/b53/b53_common.c +@@ -2493,6 +2493,22 @@ static const struct b53_chip_data b53_sw + .jumbo_pm_reg = B53_JUMBO_PORT_MASK, + .jumbo_size_reg = B53_JUMBO_MAX_SIZE, + }, ++ /* Starfighter 2 */ ++ { ++ .chip_id = BCM4908_DEVICE_ID, ++ .dev_name = "BCM4908", ++ .vlans = 4096, ++ .enabled_ports = 0x1bf, ++#if 0 ++ .arl_bins = 4, ++ .arl_buckets = 256, ++#endif ++ .cpu_port = 8, /* TODO: ports 4, 5, 8 */ ++ .vta_regs = B53_VTA_REGS, ++ .duplex_reg = B53_DUPLEX_STAT_GE, ++ .jumbo_pm_reg = B53_JUMBO_PORT_MASK, ++ .jumbo_size_reg = B53_JUMBO_MAX_SIZE, ++ }, + { + .chip_id = BCM7445_DEVICE_ID, + .dev_name = "BCM7445", +--- a/drivers/net/dsa/b53/b53_priv.h ++++ b/drivers/net/dsa/b53/b53_priv.h +@@ -64,6 +64,7 @@ struct b53_io_ops { + #define B53_INVALID_LANE 0xff + + enum { ++ BCM4908_DEVICE_ID = 0x4908, + BCM5325_DEVICE_ID = 0x25, + BCM5365_DEVICE_ID = 0x65, + BCM5389_DEVICE_ID = 0x89, +--- a/drivers/net/dsa/bcm_sf2.c ++++ b/drivers/net/dsa/bcm_sf2.c +@@ -105,7 +105,8 @@ static void bcm_sf2_imp_setup(struct dsa + b53_brcm_hdr_setup(ds, port); + + if (port == 8) { +- if (priv->type == BCM7445_DEVICE_ID) ++ if (priv->type == BCM4908_DEVICE_ID || ++ priv->type == BCM7445_DEVICE_ID) + offset = CORE_STS_OVERRIDE_IMP; + else + offset = CORE_STS_OVERRIDE_IMP2; +@@ -708,7 +709,8 @@ static void bcm_sf2_sw_mac_link_down(str + u32 reg, offset; + + if (port != core_readl(priv, CORE_IMP0_PRT_ID)) { +- if (priv->type == BCM7445_DEVICE_ID) ++ if (priv->type == BCM4908_DEVICE_ID || ++ priv->type == BCM7445_DEVICE_ID) + offset = CORE_STS_OVERRIDE_GMIIP_PORT(port); + else + offset = CORE_STS_OVERRIDE_GMIIP2_PORT(port); +@@ -735,7 +737,8 @@ static void bcm_sf2_sw_mac_link_up(struc + bcm_sf2_sw_mac_link_set(ds, port, interface, true); + + if (port != core_readl(priv, CORE_IMP0_PRT_ID)) { +- if (priv->type == BCM7445_DEVICE_ID) ++ if (priv->type == BCM4908_DEVICE_ID || ++ priv->type == BCM7445_DEVICE_ID) + offset = CORE_STS_OVERRIDE_GMIIP_PORT(port); + else + offset = CORE_STS_OVERRIDE_GMIIP2_PORT(port); +@@ -1128,6 +1131,30 @@ struct bcm_sf2_of_data { + unsigned int num_cfp_rules; + }; + ++static const u16 bcm_sf2_4908_reg_offsets[] = { ++ [REG_SWITCH_CNTRL] = 0x00, ++ [REG_SWITCH_STATUS] = 0x04, ++ [REG_DIR_DATA_WRITE] = 0x08, ++ [REG_DIR_DATA_READ] = 0x0c, ++ [REG_SWITCH_REVISION] = 0x10, ++ [REG_PHY_REVISION] = 0x14, ++ [REG_SPHY_CNTRL] = 0x24, ++ [REG_CROSSBAR] = 0xc8, ++ [REG_RGMII_0_CNTRL] = 0xe0, ++ [REG_RGMII_1_CNTRL] = 0xec, ++ [REG_RGMII_2_CNTRL] = 0xf8, ++ [REG_LED_0_CNTRL] = 0x40, ++ [REG_LED_1_CNTRL] = 0x4c, ++ [REG_LED_2_CNTRL] = 0x58, ++}; ++ ++static const struct bcm_sf2_of_data bcm_sf2_4908_data = { ++ .type = BCM4908_DEVICE_ID, ++ .core_reg_align = 0, ++ .reg_offsets = bcm_sf2_4908_reg_offsets, ++ .num_cfp_rules = 0, /* FIXME */ ++}; ++ + /* Register offsets for the SWITCH_REG_* block */ + static const u16 bcm_sf2_7445_reg_offsets[] = { + [REG_SWITCH_CNTRL] = 0x00, +@@ -1176,6 +1203,9 @@ static const struct bcm_sf2_of_data bcm_ + }; + + static const struct of_device_id bcm_sf2_of_match[] = { ++ { .compatible = "brcm,bcm4908-switch", ++ .data = &bcm_sf2_4908_data ++ }, + { .compatible = "brcm,bcm7445-switch-v4.0", + .data = &bcm_sf2_7445_data + }, +--- a/drivers/net/dsa/bcm_sf2_regs.h ++++ b/drivers/net/dsa/bcm_sf2_regs.h +@@ -17,6 +17,7 @@ enum bcm_sf2_reg_offs { + REG_SWITCH_REVISION, + REG_PHY_REVISION, + REG_SPHY_CNTRL, ++ REG_CROSSBAR, + REG_RGMII_0_CNTRL, + REG_RGMII_1_CNTRL, + REG_RGMII_2_CNTRL, diff --git a/target/linux/bcm4908/patches-5.10/071-v5.12-0002-net-dsa-bcm_sf2-use-2-Gbps-IMP-port-link-on-BCM4908.patch b/target/linux/bcm4908/patches-5.10/071-v5.12-0002-net-dsa-bcm_sf2-use-2-Gbps-IMP-port-link-on-BCM4908.patch new file mode 100644 index 0000000000..7785e0c036 --- /dev/null +++ b/target/linux/bcm4908/patches-5.10/071-v5.12-0002-net-dsa-bcm_sf2-use-2-Gbps-IMP-port-link-on-BCM4908.patch @@ -0,0 +1,33 @@ +From 8373a0fe9c7160a55482effa8a3f725efd3f8434 Mon Sep 17 00:00:00 2001 +From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl> +Date: Wed, 10 Mar 2021 13:51:59 +0100 +Subject: [PATCH] net: dsa: bcm_sf2: use 2 Gbps IMP port link on BCM4908 +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +BCM4908 uses 2 Gbps link between switch and the Ethernet interface. +Without this BCM4908 devices were able to achieve only 2 x ~895 Mb/s. +This allows handling e.g. NAT traffic with 940 Mb/s. + +Signed-off-by: Rafał Miłecki <rafal@milecki.pl> +Acked-by: Florian Fainelli <f.fainelli@gmail.com> +Signed-off-by: David S. Miller <davem@davemloft.net> +--- + drivers/net/dsa/bcm_sf2.c | 5 ++++- + 1 file changed, 4 insertions(+), 1 deletion(-) + +--- a/drivers/net/dsa/bcm_sf2.c ++++ b/drivers/net/dsa/bcm_sf2.c +@@ -114,7 +114,10 @@ static void bcm_sf2_imp_setup(struct dsa + /* Force link status for IMP port */ + reg = core_readl(priv, offset); + reg |= (MII_SW_OR | LINK_STS); +- reg &= ~GMII_SPEED_UP_2G; ++ if (priv->type == BCM4908_DEVICE_ID) ++ reg |= GMII_SPEED_UP_2G; ++ else ++ reg &= ~GMII_SPEED_UP_2G; + core_writel(priv, reg, offset); + + /* Enable Broadcast, Multicast, Unicast forwarding to IMP port */ diff --git a/target/linux/bcm4908/patches-5.10/072-v5.12-0001-dt-bindings-net-document-BCM4908-Ethernet-controller.patch b/target/linux/bcm4908/patches-5.10/072-v5.12-0001-dt-bindings-net-document-BCM4908-Ethernet-controller.patch new file mode 100644 index 0000000000..8c60b9706e --- /dev/null +++ b/target/linux/bcm4908/patches-5.10/072-v5.12-0001-dt-bindings-net-document-BCM4908-Ethernet-controller.patch @@ -0,0 +1,65 @@ +From 387d1c1819790aa8398c7cffab587f9a050a0d1a Mon Sep 17 00:00:00 2001 +From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl> +Date: Sun, 7 Feb 2021 23:26:31 +0100 +Subject: [PATCH] dt-bindings: net: document BCM4908 Ethernet controller +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +BCM4908 is a family of SoCs with integrated Ethernet controller. + +Signed-off-by: Rafał Miłecki <rafal@milecki.pl> +Signed-off-by: David S. Miller <davem@davemloft.net> +--- + .../bindings/net/brcm,bcm4908enet.yaml | 45 +++++++++++++++++++ + 1 file changed, 45 insertions(+) + create mode 100644 Documentation/devicetree/bindings/net/brcm,bcm4908enet.yaml + +--- /dev/null ++++ b/Documentation/devicetree/bindings/net/brcm,bcm4908enet.yaml +@@ -0,0 +1,45 @@ ++# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause ++%YAML 1.2 ++--- ++$id: http://devicetree.org/schemas/net/brcm,bcm4908enet.yaml# ++$schema: http://devicetree.org/meta-schemas/core.yaml# ++ ++title: Broadcom BCM4908 Ethernet controller ++ ++description: Broadcom's Ethernet controller integrated into BCM4908 family SoCs ++ ++maintainers: ++ - Rafał Miłecki <rafal@milecki.pl> ++ ++properties: ++ compatible: ++ const: brcm,bcm4908enet ++ ++ reg: ++ maxItems: 1 ++ ++ interrupts: ++ description: RX interrupt ++ ++ interrupt-names: ++ const: rx ++ ++required: ++ - reg ++ - interrupts ++ - interrupt-names ++ ++additionalProperties: false ++ ++examples: ++ - | ++ #include <dt-bindings/interrupt-controller/irq.h> ++ #include <dt-bindings/interrupt-controller/arm-gic.h> ++ ++ ethernet@80002000 { ++ compatible = "brcm,bcm4908enet"; ++ reg = <0x80002000 0x1000>; ++ ++ interrupts = <GIC_SPI 86 IRQ_TYPE_LEVEL_HIGH>; ++ interrupt-names = "rx"; ++ }; diff --git a/target/linux/bcm4908/patches-5.10/072-v5.12-0002-net-broadcom-bcm4908enet-add-BCM4908-controller-driv.patch b/target/linux/bcm4908/patches-5.10/072-v5.12-0002-net-broadcom-bcm4908enet-add-BCM4908-controller-driv.patch new file mode 100644 index 0000000000..958ef85f9e --- /dev/null +++ b/target/linux/bcm4908/patches-5.10/072-v5.12-0002-net-broadcom-bcm4908enet-add-BCM4908-controller-driv.patch @@ -0,0 +1,847 @@ +From 4feffeadbcb2e5b11cbbf191a33c245b74a5837b Mon Sep 17 00:00:00 2001 +From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl> +Date: Sun, 7 Feb 2021 23:26:32 +0100 +Subject: [PATCH] net: broadcom: bcm4908enet: add BCM4908 controller driver +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +BCM4908 SoCs family uses Ethernel controller that includes UniMAC but +uses different DMA engine (than other controllers) and requires +different programming. + +Signed-off-by: Rafał Miłecki <rafal@milecki.pl> +Signed-off-by: David S. Miller <davem@davemloft.net> +--- + MAINTAINERS | 9 + + drivers/net/ethernet/broadcom/Kconfig | 8 + + drivers/net/ethernet/broadcom/Makefile | 1 + + drivers/net/ethernet/broadcom/bcm4908enet.c | 676 ++++++++++++++++++++ + drivers/net/ethernet/broadcom/bcm4908enet.h | 96 +++ + 5 files changed, 790 insertions(+) + create mode 100644 drivers/net/ethernet/broadcom/bcm4908enet.c + create mode 100644 drivers/net/ethernet/broadcom/bcm4908enet.h + +--- a/MAINTAINERS ++++ b/MAINTAINERS +@@ -3427,6 +3427,15 @@ F: Documentation/devicetree/bindings/mip + F: arch/mips/bcm47xx/* + F: arch/mips/include/asm/mach-bcm47xx/* + ++BROADCOM BCM4908 ETHERNET DRIVER ++M: Rafał Miłecki <rafal@milecki.pl> ++M: bcm-kernel-feedback-list@broadcom.com ++L: netdev@vger.kernel.org ++S: Maintained ++F: Documentation/devicetree/bindings/net/brcm,bcm4908enet.yaml ++F: drivers/net/ethernet/broadcom/bcm4908enet.* ++F: drivers/net/ethernet/broadcom/unimac.h ++ + BROADCOM BCM5301X ARM ARCHITECTURE + M: Hauke Mehrtens <hauke@hauke-m.de> + M: Rafał Miłecki <zajec5@gmail.com> +--- a/drivers/net/ethernet/broadcom/Kconfig ++++ b/drivers/net/ethernet/broadcom/Kconfig +@@ -51,6 +51,14 @@ config B44_PCI + depends on B44_PCI_AUTOSELECT && B44_PCICORE_AUTOSELECT + default y + ++config BCM4908ENET ++ tristate "Broadcom BCM4908 internal mac support" ++ depends on ARCH_BCM4908 || COMPILE_TEST ++ default y ++ help ++ This driver supports Ethernet controller integrated into Broadcom ++ BCM4908 family SoCs. ++ + config BCM63XX_ENET + tristate "Broadcom 63xx internal mac support" + depends on BCM63XX +--- a/drivers/net/ethernet/broadcom/Makefile ++++ b/drivers/net/ethernet/broadcom/Makefile +@@ -4,6 +4,7 @@ + # + + obj-$(CONFIG_B44) += b44.o ++obj-$(CONFIG_BCM4908ENET) += bcm4908enet.o + obj-$(CONFIG_BCM63XX_ENET) += bcm63xx_enet.o + obj-$(CONFIG_BCMGENET) += genet/ + obj-$(CONFIG_BNX2) += bnx2.o +--- /dev/null ++++ b/drivers/net/ethernet/broadcom/bcm4908enet.c +@@ -0,0 +1,676 @@ ++// SPDX-License-Identifier: GPL-2.0-only ++/* ++ * Copyright (C) 2021 Rafał Miłecki <rafal@milecki.pl> ++ */ ++ ++#include <linux/delay.h> ++#include <linux/etherdevice.h> ++#include <linux/interrupt.h> ++#include <linux/module.h> ++#include <linux/of.h> ++#include <linux/platform_device.h> ++#include <linux/slab.h> ++#include <linux/string.h> ++ ++#include "bcm4908enet.h" ++#include "unimac.h" ++ ++#define ENET_DMA_CH_RX_CFG ENET_DMA_CH0_CFG ++#define ENET_DMA_CH_TX_CFG ENET_DMA_CH1_CFG ++#define ENET_DMA_CH_RX_STATE_RAM ENET_DMA_CH0_STATE_RAM ++#define ENET_DMA_CH_TX_STATE_RAM ENET_DMA_CH1_STATE_RAM ++ ++#define ENET_TX_BDS_NUM 200 ++#define ENET_RX_BDS_NUM 200 ++#define ENET_RX_BDS_NUM_MAX 8192 ++ ++#define ENET_DMA_INT_DEFAULTS (ENET_DMA_CH_CFG_INT_DONE | \ ++ ENET_DMA_CH_CFG_INT_NO_DESC | \ ++ ENET_DMA_CH_CFG_INT_BUFF_DONE) ++#define ENET_DMA_MAX_BURST_LEN 8 /* in 64 bit words */ ++ ++#define ENET_MTU_MIN 60 ++#define ENET_MTU_MAX 1500 /* Is it possible to support 2044? */ ++#define ENET_MTU_MAX_EXTRA_SIZE 32 /* L2 */ ++ ++struct bcm4908enet_dma_ring_bd { ++ __le32 ctl; ++ __le32 addr; ++} __packed; ++ ++struct bcm4908enet_dma_ring_slot { ++ struct sk_buff *skb; ++ unsigned int len; ++ dma_addr_t dma_addr; ++}; ++ ++struct bcm4908enet_dma_ring { ++ int is_tx; ++ int read_idx; ++ int write_idx; ++ int length; ++ u16 cfg_block; ++ u16 st_ram_block; ++ ++ union { ++ void *cpu_addr; ++ struct bcm4908enet_dma_ring_bd *buf_desc; ++ }; ++ dma_addr_t dma_addr; ++ ++ struct bcm4908enet_dma_ring_slot *slots; ++}; ++ ++struct bcm4908enet { ++ struct device *dev; ++ struct net_device *netdev; ++ struct napi_struct napi; ++ void __iomem *base; ++ ++ struct bcm4908enet_dma_ring tx_ring; ++ struct bcm4908enet_dma_ring rx_ring; ++}; ++ ++/*** ++ * R/W ops ++ */ ++ ++static inline u32 enet_read(struct bcm4908enet *enet, u16 offset) ++{ ++ return readl(enet->base + offset); ++} ++ ++static inline void enet_write(struct bcm4908enet *enet, u16 offset, u32 value) ++{ ++ writel(value, enet->base + offset); ++} ++ ++static inline void enet_maskset(struct bcm4908enet *enet, u16 offset, u32 mask, u32 set) ++{ ++ u32 val; ++ ++ WARN_ON(set & ~mask); ++ ++ val = enet_read(enet, offset); ++ val = (val & ~mask) | (set & mask); ++ enet_write(enet, offset, val); ++} ++ ++static inline void enet_set(struct bcm4908enet *enet, u16 offset, u32 set) ++{ ++ enet_maskset(enet, offset, set, set); ++} ++ ++static inline u32 enet_umac_read(struct bcm4908enet *enet, u16 offset) ++{ ++ return enet_read(enet, ENET_UNIMAC + offset); ++} ++ ++static inline void enet_umac_write(struct bcm4908enet *enet, u16 offset, u32 value) ++{ ++ enet_write(enet, ENET_UNIMAC + offset, value); ++} ++ ++static inline void enet_umac_maskset(struct bcm4908enet *enet, u16 offset, u32 mask, u32 set) ++{ ++ enet_maskset(enet, ENET_UNIMAC + offset, mask, set); ++} ++ ++static inline void enet_umac_set(struct bcm4908enet *enet, u16 offset, u32 set) ++{ ++ enet_set(enet, ENET_UNIMAC + offset, set); ++} ++ ++/*** ++ * Helpers ++ */ ++ ++static void bcm4908enet_intrs_on(struct bcm4908enet *enet) ++{ ++ enet_write(enet, ENET_DMA_CH_RX_CFG + ENET_DMA_CH_CFG_INT_MASK, ENET_DMA_INT_DEFAULTS); ++} ++ ++static void bcm4908enet_intrs_off(struct bcm4908enet *enet) ++{ ++ enet_write(enet, ENET_DMA_CH_RX_CFG + ENET_DMA_CH_CFG_INT_MASK, 0); ++} ++ ++static void bcm4908enet_intrs_ack(struct bcm4908enet *enet) ++{ ++ enet_write(enet, ENET_DMA_CH_RX_CFG + ENET_DMA_CH_CFG_INT_STAT, ENET_DMA_INT_DEFAULTS); ++} ++ ++/*** ++ * DMA ++ */ ++ ++static int bcm4908_dma_alloc_buf_descs(struct bcm4908enet *enet, struct bcm4908enet_dma_ring *ring) ++{ ++ int size = ring->length * sizeof(struct bcm4908enet_dma_ring_bd); ++ struct device *dev = enet->dev; ++ ++ ring->cpu_addr = dma_alloc_coherent(dev, size, &ring->dma_addr, GFP_KERNEL); ++ if (!ring->cpu_addr) ++ return -ENOMEM; ++ ++ if (((uintptr_t)ring->cpu_addr) & (0x40 - 1)) { ++ dev_err(dev, "Invalid DMA ring alignment\n"); ++ goto err_free_buf_descs; ++ } ++ ++ ring->slots = kzalloc(ring->length * sizeof(*ring->slots), GFP_KERNEL); ++ if (!ring->slots) ++ goto err_free_buf_descs; ++ ++ memset(ring->cpu_addr, 0, size); ++ ++ ring->read_idx = 0; ++ ring->write_idx = 0; ++ ++ return 0; ++ ++err_free_buf_descs: ++ dma_free_coherent(dev, size, ring->cpu_addr, ring->dma_addr); ++ return -ENOMEM; ++} ++ ++static void bcm4908enet_dma_free(struct bcm4908enet *enet) ++{ ++ struct bcm4908enet_dma_ring *tx_ring = &enet->tx_ring; ++ struct bcm4908enet_dma_ring *rx_ring = &enet->rx_ring; ++ struct device *dev = enet->dev; ++ int size; ++ ++ size = rx_ring->length * sizeof(struct bcm4908enet_dma_ring_bd); ++ if (rx_ring->cpu_addr) ++ dma_free_coherent(dev, size, rx_ring->cpu_addr, rx_ring->dma_addr); ++ kfree(rx_ring->slots); ++ ++ size = tx_ring->length * sizeof(struct bcm4908enet_dma_ring_bd); ++ if (tx_ring->cpu_addr) ++ dma_free_coherent(dev, size, tx_ring->cpu_addr, tx_ring->dma_addr); ++ kfree(tx_ring->slots); ++} ++ ++static int bcm4908enet_dma_alloc(struct bcm4908enet *enet) ++{ ++ struct bcm4908enet_dma_ring *tx_ring = &enet->tx_ring; ++ struct bcm4908enet_dma_ring *rx_ring = &enet->rx_ring; ++ struct device *dev = enet->dev; ++ int err; ++ ++ tx_ring->length = ENET_TX_BDS_NUM; ++ tx_ring->is_tx = 1; ++ tx_ring->cfg_block = ENET_DMA_CH_TX_CFG; ++ tx_ring->st_ram_block = ENET_DMA_CH_TX_STATE_RAM; ++ err = bcm4908_dma_alloc_buf_descs(enet, tx_ring); ++ if (err) { ++ dev_err(dev, "Failed to alloc TX buf descriptors: %d\n", err); ++ return err; ++ } ++ ++ rx_ring->length = ENET_RX_BDS_NUM; ++ rx_ring->is_tx = 0; ++ rx_ring->cfg_block = ENET_DMA_CH_RX_CFG; ++ rx_ring->st_ram_block = ENET_DMA_CH_RX_STATE_RAM; ++ err = bcm4908_dma_alloc_buf_descs(enet, rx_ring); ++ if (err) { ++ dev_err(dev, "Failed to alloc RX buf descriptors: %d\n", err); ++ bcm4908enet_dma_free(enet); ++ return err; ++ } ++ ++ return 0; ++} ++ ++static void bcm4908enet_dma_reset(struct bcm4908enet *enet) ++{ ++ struct bcm4908enet_dma_ring *rings[] = { &enet->rx_ring, &enet->tx_ring }; ++ int i; ++ ++ /* Disable the DMA controller and channel */ ++ for (i = 0; i < ARRAY_SIZE(rings); i++) ++ enet_write(enet, rings[i]->cfg_block + ENET_DMA_CH_CFG, 0); ++ enet_maskset(enet, ENET_DMA_CONTROLLER_CFG, ENET_DMA_CTRL_CFG_MASTER_EN, 0); ++ ++ /* Reset channels state */ ++ for (i = 0; i < ARRAY_SIZE(rings); i++) { ++ struct bcm4908enet_dma_ring *ring = rings[i]; ++ ++ enet_write(enet, ring->st_ram_block + ENET_DMA_CH_STATE_RAM_BASE_DESC_PTR, 0); ++ enet_write(enet, ring->st_ram_block + ENET_DMA_CH_STATE_RAM_STATE_DATA, 0); ++ enet_write(enet, ring->st_ram_block + ENET_DMA_CH_STATE_RAM_DESC_LEN_STATUS, 0); ++ enet_write(enet, ring->st_ram_block + ENET_DMA_CH_STATE_RAM_DESC_BASE_BUFPTR, 0); ++ } ++} ++ ++static int bcm4908enet_dma_alloc_rx_buf(struct bcm4908enet *enet, unsigned int idx) ++{ ++ struct bcm4908enet_dma_ring_bd *buf_desc = &enet->rx_ring.buf_desc[idx]; ++ struct bcm4908enet_dma_ring_slot *slot = &enet->rx_ring.slots[idx]; ++ struct device *dev = enet->dev; ++ u32 tmp; ++ int err; ++ ++ slot->len = ENET_MTU_MAX + ENET_MTU_MAX_EXTRA_SIZE; ++ ++ slot->skb = netdev_alloc_skb(enet->netdev, slot->len); ++ if (!slot->skb) ++ return -ENOMEM; ++ ++ slot->dma_addr = dma_map_single(dev, slot->skb->data, slot->len, DMA_FROM_DEVICE); ++ err = dma_mapping_error(dev, slot->dma_addr); ++ if (err) { ++ dev_err(dev, "Failed to map DMA buffer: %d\n", err); ++ kfree_skb(slot->skb); ++ slot->skb = NULL; ++ return err; ++ } ++ ++ tmp = slot->len << DMA_CTL_LEN_DESC_BUFLENGTH_SHIFT; ++ tmp |= DMA_CTL_STATUS_OWN; ++ if (idx == enet->rx_ring.length - 1) ++ tmp |= DMA_CTL_STATUS_WRAP; ++ buf_desc->ctl = cpu_to_le32(tmp); ++ buf_desc->addr = cpu_to_le32(slot->dma_addr); ++ ++ return 0; ++} ++ ++static void bcm4908enet_dma_ring_init(struct bcm4908enet *enet, ++ struct bcm4908enet_dma_ring *ring) ++{ ++ int reset_channel = 0; /* We support only 1 main channel (with TX and RX) */ ++ int reset_subch = ring->is_tx ? 1 : 0; ++ ++ /* Reset the DMA channel */ ++ enet_write(enet, ENET_DMA_CTRL_CHANNEL_RESET, BIT(reset_channel * 2 + reset_subch)); ++ enet_write(enet, ENET_DMA_CTRL_CHANNEL_RESET, 0); ++ ++ enet_write(enet, ring->cfg_block + ENET_DMA_CH_CFG, 0); ++ enet_write(enet, ring->cfg_block + ENET_DMA_CH_CFG_MAX_BURST, ENET_DMA_MAX_BURST_LEN); ++ enet_write(enet, ring->cfg_block + ENET_DMA_CH_CFG_INT_MASK, 0); ++ ++ enet_write(enet, ring->st_ram_block + ENET_DMA_CH_STATE_RAM_BASE_DESC_PTR, ++ (uint32_t)ring->dma_addr); ++} ++ ++static void bcm4908enet_dma_uninit(struct bcm4908enet *enet) ++{ ++ struct bcm4908enet_dma_ring *rx_ring = &enet->rx_ring; ++ struct bcm4908enet_dma_ring_slot *slot; ++ struct device *dev = enet->dev; ++ int i; ++ ++ for (i = rx_ring->length - 1; i >= 0; i--) { ++ slot = &rx_ring->slots[i]; ++ if (!slot->skb) ++ continue; ++ dma_unmap_single(dev, slot->dma_addr, slot->len, DMA_FROM_DEVICE); ++ kfree_skb(slot->skb); ++ slot->skb = NULL; ++ } ++} ++ ++static int bcm4908enet_dma_init(struct bcm4908enet *enet) ++{ ++ struct bcm4908enet_dma_ring *rx_ring = &enet->rx_ring; ++ struct device *dev = enet->dev; ++ int err; ++ int i; ++ ++ for (i = 0; i < rx_ring->length; i++) { ++ err = bcm4908enet_dma_alloc_rx_buf(enet, i); ++ if (err) { ++ dev_err(dev, "Failed to alloc RX buffer: %d\n", err); ++ bcm4908enet_dma_uninit(enet); ++ return err; ++ } ++ } ++ ++ bcm4908enet_dma_ring_init(enet, &enet->tx_ring); ++ bcm4908enet_dma_ring_init(enet, &enet->rx_ring); ++ ++ return 0; ++} ++ ++static void bcm4908enet_dma_tx_ring_ensable(struct bcm4908enet *enet, ++ struct bcm4908enet_dma_ring *ring) ++{ ++ enet_write(enet, ring->cfg_block + ENET_DMA_CH_CFG, ENET_DMA_CH_CFG_ENABLE); ++} ++ ++static void bcm4908enet_dma_tx_ring_disable(struct bcm4908enet *enet, ++ struct bcm4908enet_dma_ring *ring) ++{ ++ enet_write(enet, ring->cfg_block + ENET_DMA_CH_CFG, 0); ++} ++ ++static void bcm4908enet_dma_rx_ring_enable(struct bcm4908enet *enet, ++ struct bcm4908enet_dma_ring *ring) ++{ ++ enet_set(enet, ring->cfg_block + ENET_DMA_CH_CFG, ENET_DMA_CH_CFG_ENABLE); ++} ++ ++static void bcm4908enet_dma_rx_ring_disable(struct bcm4908enet *enet, ++ struct bcm4908enet_dma_ring *ring) ++{ ++ unsigned long deadline; ++ u32 tmp; ++ ++ enet_maskset(enet, ring->cfg_block + ENET_DMA_CH_CFG, ENET_DMA_CH_CFG_ENABLE, 0); ++ ++ deadline = jiffies + usecs_to_jiffies(2000); ++ do { ++ tmp = enet_read(enet, ring->cfg_block + ENET_DMA_CH_CFG); ++ if (!(tmp & ENET_DMA_CH_CFG_ENABLE)) ++ return; ++ enet_maskset(enet, ring->cfg_block + ENET_DMA_CH_CFG, ENET_DMA_CH_CFG_ENABLE, 0); ++ usleep_range(10, 30); ++ } while (!time_after_eq(jiffies, deadline)); ++ ++ dev_warn(enet->dev, "Timeout waiting for DMA TX stop\n"); ++} ++ ++/*** ++ * Ethernet driver ++ */ ++ ++static void bcm4908enet_gmac_init(struct bcm4908enet *enet) ++{ ++ u32 cmd; ++ ++ cmd = enet_umac_read(enet, UMAC_CMD); ++ enet_umac_write(enet, UMAC_CMD, cmd | CMD_SW_RESET); ++ enet_umac_write(enet, UMAC_CMD, cmd & ~CMD_SW_RESET); ++ ++ enet_set(enet, ENET_FLUSH, ENET_FLUSH_RXFIFO_FLUSH | ENET_FLUSH_TXFIFO_FLUSH); ++ enet_maskset(enet, ENET_FLUSH, ENET_FLUSH_RXFIFO_FLUSH | ENET_FLUSH_TXFIFO_FLUSH, 0); ++ ++ enet_set(enet, ENET_MIB_CTRL, ENET_MIB_CTRL_CLR_MIB); ++ enet_maskset(enet, ENET_MIB_CTRL, ENET_MIB_CTRL_CLR_MIB, 0); ++ ++ cmd = enet_umac_read(enet, UMAC_CMD); ++ cmd &= ~(CMD_SPEED_MASK << CMD_SPEED_SHIFT); ++ cmd &= ~CMD_TX_EN; ++ cmd &= ~CMD_RX_EN; ++ cmd |= CMD_SPEED_1000 << CMD_SPEED_SHIFT; ++ enet_umac_write(enet, UMAC_CMD, cmd); ++ ++ enet_maskset(enet, ENET_GMAC_STATUS, ++ ENET_GMAC_STATUS_ETH_SPEED_MASK | ++ ENET_GMAC_STATUS_HD | ++ ENET_GMAC_STATUS_AUTO_CFG_EN | ++ ENET_GMAC_STATUS_LINK_UP, ++ ENET_GMAC_STATUS_ETH_SPEED_1000 | ++ ENET_GMAC_STATUS_AUTO_CFG_EN | ++ ENET_GMAC_STATUS_LINK_UP); ++} ++ ++static irqreturn_t bcm4908enet_irq_handler(int irq, void *dev_id) ++{ ++ struct bcm4908enet *enet = dev_id; ++ ++ bcm4908enet_intrs_off(enet); ++ bcm4908enet_intrs_ack(enet); ++ ++ napi_schedule(&enet->napi); ++ ++ return IRQ_HANDLED; ++} ++ ++static int bcm4908enet_open(struct net_device *netdev) ++{ ++ struct bcm4908enet *enet = netdev_priv(netdev); ++ struct device *dev = enet->dev; ++ int err; ++ ++ err = request_irq(netdev->irq, bcm4908enet_irq_handler, 0, "enet", enet); ++ if (err) { ++ dev_err(dev, "Failed to request IRQ %d: %d\n", netdev->irq, err); ++ return err; ++ } ++ ++ bcm4908enet_gmac_init(enet); ++ bcm4908enet_dma_reset(enet); ++ bcm4908enet_dma_init(enet); ++ ++ enet_umac_set(enet, UMAC_CMD, CMD_TX_EN | CMD_RX_EN); ++ ++ enet_set(enet, ENET_DMA_CONTROLLER_CFG, ENET_DMA_CTRL_CFG_MASTER_EN); ++ enet_maskset(enet, ENET_DMA_CONTROLLER_CFG, ENET_DMA_CTRL_CFG_FLOWC_CH1_EN, 0); ++ bcm4908enet_dma_rx_ring_enable(enet, &enet->rx_ring); ++ ++ napi_enable(&enet->napi); ++ netif_carrier_on(netdev); ++ netif_start_queue(netdev); ++ ++ bcm4908enet_intrs_ack(enet); ++ bcm4908enet_intrs_on(enet); ++ ++ return 0; ++} ++ ++static int bcm4908enet_stop(struct net_device *netdev) ++{ ++ struct bcm4908enet *enet = netdev_priv(netdev); ++ ++ netif_stop_queue(netdev); ++ netif_carrier_off(netdev); ++ napi_disable(&enet->napi); ++ ++ bcm4908enet_dma_rx_ring_disable(enet, &enet->rx_ring); ++ bcm4908enet_dma_tx_ring_disable(enet, &enet->tx_ring); ++ ++ bcm4908enet_dma_uninit(enet); ++ ++ free_irq(enet->netdev->irq, enet); ++ ++ return 0; ++} ++ ++static int bcm4908enet_start_xmit(struct sk_buff *skb, struct net_device *netdev) ++{ ++ struct bcm4908enet *enet = netdev_priv(netdev); ++ struct bcm4908enet_dma_ring *ring = &enet->tx_ring; ++ struct bcm4908enet_dma_ring_slot *slot; ++ struct device *dev = enet->dev; ++ struct bcm4908enet_dma_ring_bd *buf_desc; ++ int free_buf_descs; ++ u32 tmp; ++ ++ /* Free transmitted skbs */ ++ while (ring->read_idx != ring->write_idx) { ++ buf_desc = &ring->buf_desc[ring->read_idx]; ++ if (buf_desc->ctl & DMA_CTL_STATUS_OWN) ++ break; ++ slot = &ring->slots[ring->read_idx]; ++ ++ dma_unmap_single(dev, slot->dma_addr, slot->len, DMA_TO_DEVICE); ++ dev_kfree_skb(slot->skb); ++ if (++ring->read_idx == ring->length) ++ ring->read_idx = 0; ++ } ++ ++ /* Don't use the last empty buf descriptor */ ++ if (ring->read_idx <= ring->write_idx) ++ free_buf_descs = ring->read_idx - ring->write_idx + ring->length; ++ else ++ free_buf_descs = ring->read_idx - ring->write_idx; ++ if (free_buf_descs < 2) ++ return NETDEV_TX_BUSY; ++ ++ /* Hardware removes OWN bit after sending data */ ++ buf_desc = &ring->buf_desc[ring->write_idx]; ++ if (unlikely(le32_to_cpu(buf_desc->ctl) & DMA_CTL_STATUS_OWN)) { ++ netif_stop_queue(netdev); ++ return NETDEV_TX_BUSY; ++ } ++ ++ slot = &ring->slots[ring->write_idx]; ++ slot->skb = skb; ++ slot->len = skb->len; ++ slot->dma_addr = dma_map_single(dev, skb->data, skb->len, DMA_TO_DEVICE); ++ if (unlikely(dma_mapping_error(dev, slot->dma_addr))) ++ return NETDEV_TX_BUSY; ++ ++ tmp = skb->len << DMA_CTL_LEN_DESC_BUFLENGTH_SHIFT; ++ tmp |= DMA_CTL_STATUS_OWN; ++ tmp |= DMA_CTL_STATUS_SOP; ++ tmp |= DMA_CTL_STATUS_EOP; ++ tmp |= DMA_CTL_STATUS_APPEND_CRC; ++ if (ring->write_idx + 1 == ring->length - 1) ++ tmp |= DMA_CTL_STATUS_WRAP; ++ ++ buf_desc->addr = cpu_to_le32((uint32_t)slot->dma_addr); ++ buf_desc->ctl = cpu_to_le32(tmp); ++ ++ bcm4908enet_dma_tx_ring_ensable(enet, &enet->tx_ring); ++ ++ if (++ring->write_idx == ring->length - 1) ++ ring->write_idx = 0; ++ enet->netdev->stats.tx_bytes += skb->len; ++ enet->netdev->stats.tx_packets++; ++ ++ return NETDEV_TX_OK; ++} ++ ++static int bcm4908enet_poll(struct napi_struct *napi, int weight) ++{ ++ struct bcm4908enet *enet = container_of(napi, struct bcm4908enet, napi); ++ struct device *dev = enet->dev; ++ int handled = 0; ++ ++ while (handled < weight) { ++ struct bcm4908enet_dma_ring_bd *buf_desc; ++ struct bcm4908enet_dma_ring_slot slot; ++ u32 ctl; ++ int len; ++ int err; ++ ++ buf_desc = &enet->rx_ring.buf_desc[enet->rx_ring.read_idx]; ++ ctl = le32_to_cpu(buf_desc->ctl); ++ if (ctl & DMA_CTL_STATUS_OWN) ++ break; ++ ++ slot = enet->rx_ring.slots[enet->rx_ring.read_idx]; ++ ++ /* Provide new buffer before unpinning the old one */ ++ err = bcm4908enet_dma_alloc_rx_buf(enet, enet->rx_ring.read_idx); ++ if (err) ++ break; ++ ++ if (++enet->rx_ring.read_idx == enet->rx_ring.length) ++ enet->rx_ring.read_idx = 0; ++ ++ len = (ctl & DMA_CTL_LEN_DESC_BUFLENGTH) >> DMA_CTL_LEN_DESC_BUFLENGTH_SHIFT; ++ ++ if (len < ENET_MTU_MIN || ++ (ctl & (DMA_CTL_STATUS_SOP | DMA_CTL_STATUS_EOP)) != (DMA_CTL_STATUS_SOP | DMA_CTL_STATUS_EOP)) { ++ enet->netdev->stats.rx_dropped++; ++ break; ++ } ++ ++ dma_unmap_single(dev, slot.dma_addr, slot.len, DMA_FROM_DEVICE); ++ ++ skb_put(slot.skb, len - 4 + 2); ++ slot.skb->protocol = eth_type_trans(slot.skb, enet->netdev); ++ netif_receive_skb(slot.skb); ++ ++ enet->netdev->stats.rx_packets++; ++ enet->netdev->stats.rx_bytes += len; ++ } ++ ++ if (handled < weight) { ++ napi_complete_done(napi, handled); ++ bcm4908enet_intrs_on(enet); ++ } ++ ++ return handled; ++} ++ ++static const struct net_device_ops bcm96xx_netdev_ops = { ++ .ndo_open = bcm4908enet_open, ++ .ndo_stop = bcm4908enet_stop, ++ .ndo_start_xmit = bcm4908enet_start_xmit, ++ .ndo_set_mac_address = eth_mac_addr, ++}; ++ ++static int bcm4908enet_probe(struct platform_device *pdev) ++{ ++ struct device *dev = &pdev->dev; ++ struct net_device *netdev; ++ struct bcm4908enet *enet; ++ int err; ++ ++ netdev = devm_alloc_etherdev(dev, sizeof(*enet)); ++ if (!netdev) ++ return -ENOMEM; ++ ++ enet = netdev_priv(netdev); ++ enet->dev = dev; ++ enet->netdev = netdev; ++ ++ enet->base = devm_platform_ioremap_resource(pdev, 0); ++ if (IS_ERR(enet->base)) { ++ dev_err(dev, "Failed to map registers: %ld\n", PTR_ERR(enet->base)); ++ return PTR_ERR(enet->base); ++ } ++ ++ netdev->irq = platform_get_irq_byname(pdev, "rx"); ++ if (netdev->irq < 0) ++ return netdev->irq; ++ ++ dma_set_coherent_mask(dev, DMA_BIT_MASK(32)); ++ ++ err = bcm4908enet_dma_alloc(enet); ++ if (err) ++ return err; ++ ++ SET_NETDEV_DEV(netdev, &pdev->dev); ++ eth_hw_addr_random(netdev); ++ netdev->netdev_ops = &bcm96xx_netdev_ops; ++ netdev->min_mtu = ETH_ZLEN; ++ netdev->mtu = ENET_MTU_MAX; ++ netdev->max_mtu = ENET_MTU_MAX; ++ netif_napi_add(netdev, &enet->napi, bcm4908enet_poll, 64); ++ ++ err = register_netdev(netdev); ++ if (err) { ++ bcm4908enet_dma_free(enet); ++ return err; ++ } ++ ++ platform_set_drvdata(pdev, enet); ++ ++ return 0; ++} ++ ++static int bcm4908enet_remove(struct platform_device *pdev) ++{ ++ struct bcm4908enet *enet = platform_get_drvdata(pdev); ++ ++ unregister_netdev(enet->netdev); ++ netif_napi_del(&enet->napi); ++ bcm4908enet_dma_free(enet); ++ ++ return 0; ++} ++ ++static const struct of_device_id bcm4908enet_of_match[] = { ++ { .compatible = "brcm,bcm4908enet"}, ++ {}, ++}; ++ ++static struct platform_driver bcm4908enet_driver = { ++ .driver = { ++ .name = "bcm4908enet", ++ .of_match_table = bcm4908enet_of_match, ++ }, ++ .probe = bcm4908enet_probe, ++ .remove = bcm4908enet_remove, ++}; ++module_platform_driver(bcm4908enet_driver); ++ ++MODULE_LICENSE("GPL v2"); ++MODULE_DEVICE_TABLE(of, bcm4908enet_of_match); +--- /dev/null ++++ b/drivers/net/ethernet/broadcom/bcm4908enet.h +@@ -0,0 +1,96 @@ ++/* SPDX-License-Identifier: GPL-2.0-only */ ++#ifndef __BCM4908ENET_H ++#define __BCM4908ENET_H ++ ++#define ENET_CONTROL 0x000 ++#define ENET_MIB_CTRL 0x004 ++#define ENET_MIB_CTRL_CLR_MIB 0x00000001 ++#define ENET_RX_ERR_MASK 0x008 ++#define ENET_MIB_MAX_PKT_SIZE 0x00C ++#define ENET_MIB_MAX_PKT_SIZE_VAL 0x00003fff ++#define ENET_DIAG_OUT 0x01c ++#define ENET_ENABLE_DROP_PKT 0x020 ++#define ENET_IRQ_ENABLE 0x024 ++#define ENET_IRQ_ENABLE_OVFL 0x00000001 ++#define ENET_GMAC_STATUS 0x028 ++#define ENET_GMAC_STATUS_ETH_SPEED_MASK 0x00000003 ++#define ENET_GMAC_STATUS_ETH_SPEED_10 0x00000000 ++#define ENET_GMAC_STATUS_ETH_SPEED_100 0x00000001 ++#define ENET_GMAC_STATUS_ETH_SPEED_1000 0x00000002 ++#define ENET_GMAC_STATUS_HD 0x00000004 ++#define ENET_GMAC_STATUS_AUTO_CFG_EN 0x00000008 ++#define ENET_GMAC_STATUS_LINK_UP 0x00000010 ++#define ENET_IRQ_STATUS 0x02c ++#define ENET_IRQ_STATUS_OVFL 0x00000001 ++#define ENET_OVERFLOW_COUNTER 0x030 ++#define ENET_FLUSH 0x034 ++#define ENET_FLUSH_RXFIFO_FLUSH 0x00000001 ++#define ENET_FLUSH_TXFIFO_FLUSH 0x00000002 ++#define ENET_RSV_SELECT 0x038 ++#define ENET_BP_FORCE 0x03c ++#define ENET_BP_FORCE_FORCE 0x00000001 ++#define ENET_DMA_RX_OK_TO_SEND_COUNT 0x040 ++#define ENET_DMA_RX_OK_TO_SEND_COUNT_VAL 0x0000000f ++#define ENET_TX_CRC_CTRL 0x044 ++#define ENET_MIB 0x200 ++#define ENET_UNIMAC 0x400 ++#define ENET_DMA 0x800 ++#define ENET_DMA_CONTROLLER_CFG 0x800 ++#define ENET_DMA_CTRL_CFG_MASTER_EN 0x00000001 ++#define ENET_DMA_CTRL_CFG_FLOWC_CH1_EN 0x00000002 ++#define ENET_DMA_CTRL_CFG_FLOWC_CH3_EN 0x00000004 ++#define ENET_DMA_FLOWCTL_CH1_THRESH_LO 0x804 ++#define ENET_DMA_FLOWCTL_CH1_THRESH_HI 0x808 ++#define ENET_DMA_FLOWCTL_CH1_ALLOC 0x80c ++#define ENET_DMA_FLOWCTL_CH1_ALLOC_FORCE 0x80000000 ++#define ENET_DMA_FLOWCTL_CH3_THRESH_LO 0x810 ++#define ENET_DMA_FLOWCTL_CH3_THRESH_HI 0x814 ++#define ENET_DMA_FLOWCTL_CH3_ALLOC 0x818 ++#define ENET_DMA_FLOWCTL_CH5_THRESH_LO 0x81C ++#define ENET_DMA_FLOWCTL_CH5_THRESH_HI 0x820 ++#define ENET_DMA_FLOWCTL_CH5_ALLOC 0x824 ++#define ENET_DMA_FLOWCTL_CH7_THRESH_LO 0x828 ++#define ENET_DMA_FLOWCTL_CH7_THRESH_HI 0x82C ++#define ENET_DMA_FLOWCTL_CH7_ALLOC 0x830 ++#define ENET_DMA_CTRL_CHANNEL_RESET 0x834 ++#define ENET_DMA_CTRL_CHANNEL_DEBUG 0x838 ++#define ENET_DMA_CTRL_GLOBAL_INTERRUPT_STATUS 0x840 ++#define ENET_DMA_CTRL_GLOBAL_INTERRUPT_MASK 0x844 ++#define ENET_DMA_CH0_CFG 0xa00 /* RX */ ++#define ENET_DMA_CH1_CFG 0xa10 /* TX */ ++#define ENET_DMA_CH0_STATE_RAM 0xc00 /* RX */ ++#define ENET_DMA_CH1_STATE_RAM 0xc10 /* TX */ ++ ++#define ENET_DMA_CH_CFG 0x00 /* assorted configuration */ ++#define ENET_DMA_CH_CFG_ENABLE 0x00000001 /* set to enable channel */ ++#define ENET_DMA_CH_CFG_PKT_HALT 0x00000002 /* idle after an EOP flag is detected */ ++#define ENET_DMA_CH_CFG_BURST_HALT 0x00000004 /* idle after finish current memory burst */ ++#define ENET_DMA_CH_CFG_INT_STAT 0x04 /* interrupts control and status */ ++#define ENET_DMA_CH_CFG_INT_MASK 0x08 /* interrupts mask */ ++#define ENET_DMA_CH_CFG_INT_BUFF_DONE 0x00000001 /* buffer done */ ++#define ENET_DMA_CH_CFG_INT_DONE 0x00000002 /* packet xfer complete */ ++#define ENET_DMA_CH_CFG_INT_NO_DESC 0x00000004 /* no valid descriptors */ ++#define ENET_DMA_CH_CFG_INT_RX_ERROR 0x00000008 /* rxdma detect client protocol error */ ++#define ENET_DMA_CH_CFG_MAX_BURST 0x0c /* max burst length permitted */ ++#define ENET_DMA_CH_CFG_MAX_BURST_DESCSIZE_SEL 0x00040000 /* DMA Descriptor Size Selection */ ++#define ENET_DMA_CH_CFG_SIZE 0x10 ++ ++#define ENET_DMA_CH_STATE_RAM_BASE_DESC_PTR 0x00 /* descriptor ring start address */ ++#define ENET_DMA_CH_STATE_RAM_STATE_DATA 0x04 /* state/bytes done/ring offset */ ++#define ENET_DMA_CH_STATE_RAM_DESC_LEN_STATUS 0x08 /* buffer descriptor status and len */ ++#define ENET_DMA_CH_STATE_RAM_DESC_BASE_BUFPTR 0x0c /* buffer descrpitor current processing */ ++#define ENET_DMA_CH_STATE_RAM_SIZE 0x10 ++ ++#define DMA_CTL_STATUS_APPEND_CRC 0x00000100 ++#define DMA_CTL_STATUS_APPEND_BRCM_TAG 0x00000200 ++#define DMA_CTL_STATUS_PRIO 0x00000C00 /* Prio for Tx */ ++#define DMA_CTL_STATUS_WRAP 0x00001000 /* */ ++#define DMA_CTL_STATUS_SOP 0x00002000 /* first buffer in packet */ ++#define DMA_CTL_STATUS_EOP 0x00004000 /* last buffer in packet */ ++#define DMA_CTL_STATUS_OWN 0x00008000 /* cleared by DMA, set by SW */ ++#define DMA_CTL_LEN_DESC_BUFLENGTH 0x0fff0000 ++#define DMA_CTL_LEN_DESC_BUFLENGTH_SHIFT 16 ++#define DMA_CTL_LEN_DESC_MULTICAST 0x40000000 ++#define DMA_CTL_LEN_DESC_USEFPM 0x80000000 ++ ++#endif diff --git a/target/linux/bcm4908/patches-5.10/073-v5.12-0001-dt-bindings-net-rename-BCM4908-Ethernet-binding.patch b/target/linux/bcm4908/patches-5.10/073-v5.12-0001-dt-bindings-net-rename-BCM4908-Ethernet-binding.patch new file mode 100644 index 0000000000..dd297bcf9b --- /dev/null +++ b/target/linux/bcm4908/patches-5.10/073-v5.12-0001-dt-bindings-net-rename-BCM4908-Ethernet-binding.patch @@ -0,0 +1,128 @@ +From 6710c5b0674f8811f7d8fbfc526684e7ed77f765 Mon Sep 17 00:00:00 2001 +From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl> +Date: Thu, 11 Feb 2021 13:12:32 +0100 +Subject: [PATCH] dt-bindings: net: rename BCM4908 Ethernet binding +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +Rob pointed out that a normal convention is "brcm,bcm4908-enet" so +update whole binding to match it. + +Suggested-by: Rob Herring <robh@kernel.org> +Signed-off-by: Rafał Miłecki <rafal@milecki.pl> +Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> +Signed-off-by: David S. Miller <davem@davemloft.net> +--- + .../net/{brcm,bcm4908enet.yaml => brcm,bcm4908-enet.yaml} | 6 +++--- + MAINTAINERS | 2 +- + 2 files changed, 4 insertions(+), 4 deletions(-) + rename Documentation/devicetree/bindings/net/{brcm,bcm4908enet.yaml => brcm,bcm4908-enet.yaml} (85%) + +--- a/Documentation/devicetree/bindings/net/brcm,bcm4908enet.yaml ++++ /dev/null +@@ -1,45 +0,0 @@ +-# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause +-%YAML 1.2 +---- +-$id: http://devicetree.org/schemas/net/brcm,bcm4908enet.yaml# +-$schema: http://devicetree.org/meta-schemas/core.yaml# +- +-title: Broadcom BCM4908 Ethernet controller +- +-description: Broadcom's Ethernet controller integrated into BCM4908 family SoCs +- +-maintainers: +- - Rafał Miłecki <rafal@milecki.pl> +- +-properties: +- compatible: +- const: brcm,bcm4908enet +- +- reg: +- maxItems: 1 +- +- interrupts: +- description: RX interrupt +- +- interrupt-names: +- const: rx +- +-required: +- - reg +- - interrupts +- - interrupt-names +- +-additionalProperties: false +- +-examples: +- - | +- #include <dt-bindings/interrupt-controller/irq.h> +- #include <dt-bindings/interrupt-controller/arm-gic.h> +- +- ethernet@80002000 { +- compatible = "brcm,bcm4908enet"; +- reg = <0x80002000 0x1000>; +- +- interrupts = <GIC_SPI 86 IRQ_TYPE_LEVEL_HIGH>; +- interrupt-names = "rx"; +- }; +--- /dev/null ++++ b/Documentation/devicetree/bindings/net/brcm,bcm4908-enet.yaml +@@ -0,0 +1,45 @@ ++# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause ++%YAML 1.2 ++--- ++$id: http://devicetree.org/schemas/net/brcm,bcm4908-enet.yaml# ++$schema: http://devicetree.org/meta-schemas/core.yaml# ++ ++title: Broadcom BCM4908 Ethernet controller ++ ++description: Broadcom's Ethernet controller integrated into BCM4908 family SoCs ++ ++maintainers: ++ - Rafał Miłecki <rafal@milecki.pl> ++ ++properties: ++ compatible: ++ const: brcm,bcm4908-enet ++ ++ reg: ++ maxItems: 1 ++ ++ interrupts: ++ description: RX interrupt ++ ++ interrupt-names: ++ const: rx ++ ++required: ++ - reg ++ - interrupts ++ - interrupt-names ++ ++additionalProperties: false ++ ++examples: ++ - | ++ #include <dt-bindings/interrupt-controller/irq.h> ++ #include <dt-bindings/interrupt-controller/arm-gic.h> ++ ++ ethernet@80002000 { ++ compatible = "brcm,bcm4908-enet"; ++ reg = <0x80002000 0x1000>; ++ ++ interrupts = <GIC_SPI 86 IRQ_TYPE_LEVEL_HIGH>; ++ interrupt-names = "rx"; ++ }; +--- a/MAINTAINERS ++++ b/MAINTAINERS +@@ -3432,7 +3432,7 @@ M: Rafał Miłecki <rafal@milecki.pl> + M: bcm-kernel-feedback-list@broadcom.com + L: netdev@vger.kernel.org + S: Maintained +-F: Documentation/devicetree/bindings/net/brcm,bcm4908enet.yaml ++F: Documentation/devicetree/bindings/net/brcm,bcm4908-enet.yaml + F: drivers/net/ethernet/broadcom/bcm4908enet.* + F: drivers/net/ethernet/broadcom/unimac.h + diff --git a/target/linux/bcm4908/patches-5.10/073-v5.12-0002-dt-bindings-net-bcm4908-enet-include-ethernet-contro.patch b/target/linux/bcm4908/patches-5.10/073-v5.12-0002-dt-bindings-net-bcm4908-enet-include-ethernet-contro.patch new file mode 100644 index 0000000000..a4409a818a --- /dev/null +++ b/target/linux/bcm4908/patches-5.10/073-v5.12-0002-dt-bindings-net-bcm4908-enet-include-ethernet-contro.patch @@ -0,0 +1,32 @@ +From f08b5cf1eb1f2aefc6fe4a89c8c757ba94721d0b Mon Sep 17 00:00:00 2001 +From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl> +Date: Thu, 11 Feb 2021 13:12:33 +0100 +Subject: [PATCH] dt-bindings: net: bcm4908-enet: include + ethernet-controller.yaml +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +It should be /included/ by every Ethernet controller binding. It adds +support for various generic properties. + +Suggested-by: Rob Herring <robh@kernel.org> +Signed-off-by: Rafał Miłecki <rafal@milecki.pl> +Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> +Signed-off-by: David S. Miller <davem@davemloft.net> +--- + Documentation/devicetree/bindings/net/brcm,bcm4908-enet.yaml | 3 +++ + 1 file changed, 3 insertions(+) + +--- a/Documentation/devicetree/bindings/net/brcm,bcm4908-enet.yaml ++++ b/Documentation/devicetree/bindings/net/brcm,bcm4908-enet.yaml +@@ -11,6 +11,9 @@ description: Broadcom's Ethernet control + maintainers: + - Rafał Miłecki <rafal@milecki.pl> + ++allOf: ++ - $ref: ethernet-controller.yaml# ++ + properties: + compatible: + const: brcm,bcm4908-enet diff --git a/target/linux/bcm4908/patches-5.10/073-v5.12-0003-net-broadcom-rename-BCM4908-driver-update-DT-binding.patch b/target/linux/bcm4908/patches-5.10/073-v5.12-0003-net-broadcom-rename-BCM4908-driver-update-DT-binding.patch new file mode 100644 index 0000000000..3d22d0e042 --- /dev/null +++ b/target/linux/bcm4908/patches-5.10/073-v5.12-0003-net-broadcom-rename-BCM4908-driver-update-DT-binding.patch @@ -0,0 +1,1614 @@ +From 9d61d138ab30bbfe4a8609853c81e881c4054a0b Mon Sep 17 00:00:00 2001 +From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl> +Date: Thu, 11 Feb 2021 13:12:34 +0100 +Subject: [PATCH] net: broadcom: rename BCM4908 driver & update DT binding +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +compatible string was updated to match normal naming convention so +update driver as well + +Signed-off-by: Rafał Miłecki <rafal@milecki.pl> +Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> +Signed-off-by: David S. Miller <davem@davemloft.net> +--- + MAINTAINERS | 2 +- + drivers/net/ethernet/broadcom/Kconfig | 2 +- + drivers/net/ethernet/broadcom/Makefile | 2 +- + .../{bcm4908enet.c => bcm4908_enet.c} | 215 +++++++++--------- + .../{bcm4908enet.h => bcm4908_enet.h} | 4 +- + 5 files changed, 113 insertions(+), 112 deletions(-) + rename drivers/net/ethernet/broadcom/{bcm4908enet.c => bcm4908_enet.c} (68%) + rename drivers/net/ethernet/broadcom/{bcm4908enet.h => bcm4908_enet.h} (98%) + +--- a/MAINTAINERS ++++ b/MAINTAINERS +@@ -3433,7 +3433,7 @@ M: bcm-kernel-feedback-list@broadcom.com + L: netdev@vger.kernel.org + S: Maintained + F: Documentation/devicetree/bindings/net/brcm,bcm4908-enet.yaml +-F: drivers/net/ethernet/broadcom/bcm4908enet.* ++F: drivers/net/ethernet/broadcom/bcm4908_enet.* + F: drivers/net/ethernet/broadcom/unimac.h + + BROADCOM BCM5301X ARM ARCHITECTURE +--- a/drivers/net/ethernet/broadcom/Kconfig ++++ b/drivers/net/ethernet/broadcom/Kconfig +@@ -51,7 +51,7 @@ config B44_PCI + depends on B44_PCI_AUTOSELECT && B44_PCICORE_AUTOSELECT + default y + +-config BCM4908ENET ++config BCM4908_ENET + tristate "Broadcom BCM4908 internal mac support" + depends on ARCH_BCM4908 || COMPILE_TEST + default y +--- a/drivers/net/ethernet/broadcom/Makefile ++++ b/drivers/net/ethernet/broadcom/Makefile +@@ -4,7 +4,7 @@ + # + + obj-$(CONFIG_B44) += b44.o +-obj-$(CONFIG_BCM4908ENET) += bcm4908enet.o ++obj-$(CONFIG_BCM4908_ENET) += bcm4908_enet.o + obj-$(CONFIG_BCM63XX_ENET) += bcm63xx_enet.o + obj-$(CONFIG_BCMGENET) += genet/ + obj-$(CONFIG_BNX2) += bnx2.o +--- a/drivers/net/ethernet/broadcom/bcm4908enet.c ++++ /dev/null +@@ -1,676 +0,0 @@ +-// SPDX-License-Identifier: GPL-2.0-only +-/* +- * Copyright (C) 2021 Rafał Miłecki <rafal@milecki.pl> +- */ +- +-#include <linux/delay.h> +-#include <linux/etherdevice.h> +-#include <linux/interrupt.h> +-#include <linux/module.h> +-#include <linux/of.h> +-#include <linux/platform_device.h> +-#include <linux/slab.h> +-#include <linux/string.h> +- +-#include "bcm4908enet.h" +-#include "unimac.h" +- +-#define ENET_DMA_CH_RX_CFG ENET_DMA_CH0_CFG +-#define ENET_DMA_CH_TX_CFG ENET_DMA_CH1_CFG +-#define ENET_DMA_CH_RX_STATE_RAM ENET_DMA_CH0_STATE_RAM +-#define ENET_DMA_CH_TX_STATE_RAM ENET_DMA_CH1_STATE_RAM +- +-#define ENET_TX_BDS_NUM 200 +-#define ENET_RX_BDS_NUM 200 +-#define ENET_RX_BDS_NUM_MAX 8192 +- +-#define ENET_DMA_INT_DEFAULTS (ENET_DMA_CH_CFG_INT_DONE | \ +- ENET_DMA_CH_CFG_INT_NO_DESC | \ +- ENET_DMA_CH_CFG_INT_BUFF_DONE) +-#define ENET_DMA_MAX_BURST_LEN 8 /* in 64 bit words */ +- +-#define ENET_MTU_MIN 60 +-#define ENET_MTU_MAX 1500 /* Is it possible to support 2044? */ +-#define ENET_MTU_MAX_EXTRA_SIZE 32 /* L2 */ +- +-struct bcm4908enet_dma_ring_bd { +- __le32 ctl; +- __le32 addr; +-} __packed; +- +-struct bcm4908enet_dma_ring_slot { +- struct sk_buff *skb; +- unsigned int len; +- dma_addr_t dma_addr; +-}; +- +-struct bcm4908enet_dma_ring { +- int is_tx; +- int read_idx; +- int write_idx; +- int length; +- u16 cfg_block; +- u16 st_ram_block; +- +- union { +- void *cpu_addr; +- struct bcm4908enet_dma_ring_bd *buf_desc; +- }; +- dma_addr_t dma_addr; +- +- struct bcm4908enet_dma_ring_slot *slots; +-}; +- +-struct bcm4908enet { +- struct device *dev; +- struct net_device *netdev; +- struct napi_struct napi; +- void __iomem *base; +- +- struct bcm4908enet_dma_ring tx_ring; +- struct bcm4908enet_dma_ring rx_ring; +-}; +- +-/*** +- * R/W ops +- */ +- +-static inline u32 enet_read(struct bcm4908enet *enet, u16 offset) +-{ +- return readl(enet->base + offset); +-} +- +-static inline void enet_write(struct bcm4908enet *enet, u16 offset, u32 value) +-{ +- writel(value, enet->base + offset); +-} +- +-static inline void enet_maskset(struct bcm4908enet *enet, u16 offset, u32 mask, u32 set) +-{ +- u32 val; +- +- WARN_ON(set & ~mask); +- +- val = enet_read(enet, offset); +- val = (val & ~mask) | (set & mask); +- enet_write(enet, offset, val); +-} +- +-static inline void enet_set(struct bcm4908enet *enet, u16 offset, u32 set) +-{ +- enet_maskset(enet, offset, set, set); +-} +- +-static inline u32 enet_umac_read(struct bcm4908enet *enet, u16 offset) +-{ +- return enet_read(enet, ENET_UNIMAC + offset); +-} +- +-static inline void enet_umac_write(struct bcm4908enet *enet, u16 offset, u32 value) +-{ +- enet_write(enet, ENET_UNIMAC + offset, value); +-} +- +-static inline void enet_umac_maskset(struct bcm4908enet *enet, u16 offset, u32 mask, u32 set) +-{ +- enet_maskset(enet, ENET_UNIMAC + offset, mask, set); +-} +- +-static inline void enet_umac_set(struct bcm4908enet *enet, u16 offset, u32 set) +-{ +- enet_set(enet, ENET_UNIMAC + offset, set); +-} +- +-/*** +- * Helpers +- */ +- +-static void bcm4908enet_intrs_on(struct bcm4908enet *enet) +-{ +- enet_write(enet, ENET_DMA_CH_RX_CFG + ENET_DMA_CH_CFG_INT_MASK, ENET_DMA_INT_DEFAULTS); +-} +- +-static void bcm4908enet_intrs_off(struct bcm4908enet *enet) +-{ +- enet_write(enet, ENET_DMA_CH_RX_CFG + ENET_DMA_CH_CFG_INT_MASK, 0); +-} +- +-static void bcm4908enet_intrs_ack(struct bcm4908enet *enet) +-{ +- enet_write(enet, ENET_DMA_CH_RX_CFG + ENET_DMA_CH_CFG_INT_STAT, ENET_DMA_INT_DEFAULTS); +-} +- +-/*** +- * DMA +- */ +- +-static int bcm4908_dma_alloc_buf_descs(struct bcm4908enet *enet, struct bcm4908enet_dma_ring *ring) +-{ +- int size = ring->length * sizeof(struct bcm4908enet_dma_ring_bd); +- struct device *dev = enet->dev; +- +- ring->cpu_addr = dma_alloc_coherent(dev, size, &ring->dma_addr, GFP_KERNEL); +- if (!ring->cpu_addr) +- return -ENOMEM; +- +- if (((uintptr_t)ring->cpu_addr) & (0x40 - 1)) { +- dev_err(dev, "Invalid DMA ring alignment\n"); +- goto err_free_buf_descs; +- } +- +- ring->slots = kzalloc(ring->length * sizeof(*ring->slots), GFP_KERNEL); +- if (!ring->slots) +- goto err_free_buf_descs; +- +- memset(ring->cpu_addr, 0, size); +- +- ring->read_idx = 0; +- ring->write_idx = 0; +- +- return 0; +- +-err_free_buf_descs: +- dma_free_coherent(dev, size, ring->cpu_addr, ring->dma_addr); +- return -ENOMEM; +-} +- +-static void bcm4908enet_dma_free(struct bcm4908enet *enet) +-{ +- struct bcm4908enet_dma_ring *tx_ring = &enet->tx_ring; +- struct bcm4908enet_dma_ring *rx_ring = &enet->rx_ring; +- struct device *dev = enet->dev; +- int size; +- +- size = rx_ring->length * sizeof(struct bcm4908enet_dma_ring_bd); +- if (rx_ring->cpu_addr) +- dma_free_coherent(dev, size, rx_ring->cpu_addr, rx_ring->dma_addr); +- kfree(rx_ring->slots); +- +- size = tx_ring->length * sizeof(struct bcm4908enet_dma_ring_bd); +- if (tx_ring->cpu_addr) +- dma_free_coherent(dev, size, tx_ring->cpu_addr, tx_ring->dma_addr); +- kfree(tx_ring->slots); +-} +- +-static int bcm4908enet_dma_alloc(struct bcm4908enet *enet) +-{ +- struct bcm4908enet_dma_ring *tx_ring = &enet->tx_ring; +- struct bcm4908enet_dma_ring *rx_ring = &enet->rx_ring; +- struct device *dev = enet->dev; +- int err; +- +- tx_ring->length = ENET_TX_BDS_NUM; +- tx_ring->is_tx = 1; +- tx_ring->cfg_block = ENET_DMA_CH_TX_CFG; +- tx_ring->st_ram_block = ENET_DMA_CH_TX_STATE_RAM; +- err = bcm4908_dma_alloc_buf_descs(enet, tx_ring); +- if (err) { +- dev_err(dev, "Failed to alloc TX buf descriptors: %d\n", err); +- return err; +- } +- +- rx_ring->length = ENET_RX_BDS_NUM; +- rx_ring->is_tx = 0; +- rx_ring->cfg_block = ENET_DMA_CH_RX_CFG; +- rx_ring->st_ram_block = ENET_DMA_CH_RX_STATE_RAM; +- err = bcm4908_dma_alloc_buf_descs(enet, rx_ring); +- if (err) { +- dev_err(dev, "Failed to alloc RX buf descriptors: %d\n", err); +- bcm4908enet_dma_free(enet); +- return err; +- } +- +- return 0; +-} +- +-static void bcm4908enet_dma_reset(struct bcm4908enet *enet) +-{ +- struct bcm4908enet_dma_ring *rings[] = { &enet->rx_ring, &enet->tx_ring }; +- int i; +- +- /* Disable the DMA controller and channel */ +- for (i = 0; i < ARRAY_SIZE(rings); i++) +- enet_write(enet, rings[i]->cfg_block + ENET_DMA_CH_CFG, 0); +- enet_maskset(enet, ENET_DMA_CONTROLLER_CFG, ENET_DMA_CTRL_CFG_MASTER_EN, 0); +- +- /* Reset channels state */ +- for (i = 0; i < ARRAY_SIZE(rings); i++) { +- struct bcm4908enet_dma_ring *ring = rings[i]; +- +- enet_write(enet, ring->st_ram_block + ENET_DMA_CH_STATE_RAM_BASE_DESC_PTR, 0); +- enet_write(enet, ring->st_ram_block + ENET_DMA_CH_STATE_RAM_STATE_DATA, 0); +- enet_write(enet, ring->st_ram_block + ENET_DMA_CH_STATE_RAM_DESC_LEN_STATUS, 0); +- enet_write(enet, ring->st_ram_block + ENET_DMA_CH_STATE_RAM_DESC_BASE_BUFPTR, 0); +- } +-} +- +-static int bcm4908enet_dma_alloc_rx_buf(struct bcm4908enet *enet, unsigned int idx) +-{ +- struct bcm4908enet_dma_ring_bd *buf_desc = &enet->rx_ring.buf_desc[idx]; +- struct bcm4908enet_dma_ring_slot *slot = &enet->rx_ring.slots[idx]; +- struct device *dev = enet->dev; +- u32 tmp; +- int err; +- +- slot->len = ENET_MTU_MAX + ENET_MTU_MAX_EXTRA_SIZE; +- +- slot->skb = netdev_alloc_skb(enet->netdev, slot->len); +- if (!slot->skb) +- return -ENOMEM; +- +- slot->dma_addr = dma_map_single(dev, slot->skb->data, slot->len, DMA_FROM_DEVICE); +- err = dma_mapping_error(dev, slot->dma_addr); +- if (err) { +- dev_err(dev, "Failed to map DMA buffer: %d\n", err); +- kfree_skb(slot->skb); +- slot->skb = NULL; +- return err; +- } +- +- tmp = slot->len << DMA_CTL_LEN_DESC_BUFLENGTH_SHIFT; +- tmp |= DMA_CTL_STATUS_OWN; +- if (idx == enet->rx_ring.length - 1) +- tmp |= DMA_CTL_STATUS_WRAP; +- buf_desc->ctl = cpu_to_le32(tmp); +- buf_desc->addr = cpu_to_le32(slot->dma_addr); +- +- return 0; +-} +- +-static void bcm4908enet_dma_ring_init(struct bcm4908enet *enet, +- struct bcm4908enet_dma_ring *ring) +-{ +- int reset_channel = 0; /* We support only 1 main channel (with TX and RX) */ +- int reset_subch = ring->is_tx ? 1 : 0; +- +- /* Reset the DMA channel */ +- enet_write(enet, ENET_DMA_CTRL_CHANNEL_RESET, BIT(reset_channel * 2 + reset_subch)); +- enet_write(enet, ENET_DMA_CTRL_CHANNEL_RESET, 0); +- +- enet_write(enet, ring->cfg_block + ENET_DMA_CH_CFG, 0); +- enet_write(enet, ring->cfg_block + ENET_DMA_CH_CFG_MAX_BURST, ENET_DMA_MAX_BURST_LEN); +- enet_write(enet, ring->cfg_block + ENET_DMA_CH_CFG_INT_MASK, 0); +- +- enet_write(enet, ring->st_ram_block + ENET_DMA_CH_STATE_RAM_BASE_DESC_PTR, +- (uint32_t)ring->dma_addr); +-} +- +-static void bcm4908enet_dma_uninit(struct bcm4908enet *enet) +-{ +- struct bcm4908enet_dma_ring *rx_ring = &enet->rx_ring; +- struct bcm4908enet_dma_ring_slot *slot; +- struct device *dev = enet->dev; +- int i; +- +- for (i = rx_ring->length - 1; i >= 0; i--) { +- slot = &rx_ring->slots[i]; +- if (!slot->skb) +- continue; +- dma_unmap_single(dev, slot->dma_addr, slot->len, DMA_FROM_DEVICE); +- kfree_skb(slot->skb); +- slot->skb = NULL; +- } +-} +- +-static int bcm4908enet_dma_init(struct bcm4908enet *enet) +-{ +- struct bcm4908enet_dma_ring *rx_ring = &enet->rx_ring; +- struct device *dev = enet->dev; +- int err; +- int i; +- +- for (i = 0; i < rx_ring->length; i++) { +- err = bcm4908enet_dma_alloc_rx_buf(enet, i); +- if (err) { +- dev_err(dev, "Failed to alloc RX buffer: %d\n", err); +- bcm4908enet_dma_uninit(enet); +- return err; +- } +- } +- +- bcm4908enet_dma_ring_init(enet, &enet->tx_ring); +- bcm4908enet_dma_ring_init(enet, &enet->rx_ring); +- +- return 0; +-} +- +-static void bcm4908enet_dma_tx_ring_ensable(struct bcm4908enet *enet, +- struct bcm4908enet_dma_ring *ring) +-{ +- enet_write(enet, ring->cfg_block + ENET_DMA_CH_CFG, ENET_DMA_CH_CFG_ENABLE); +-} +- +-static void bcm4908enet_dma_tx_ring_disable(struct bcm4908enet *enet, +- struct bcm4908enet_dma_ring *ring) +-{ +- enet_write(enet, ring->cfg_block + ENET_DMA_CH_CFG, 0); +-} +- +-static void bcm4908enet_dma_rx_ring_enable(struct bcm4908enet *enet, +- struct bcm4908enet_dma_ring *ring) +-{ +- enet_set(enet, ring->cfg_block + ENET_DMA_CH_CFG, ENET_DMA_CH_CFG_ENABLE); +-} +- +-static void bcm4908enet_dma_rx_ring_disable(struct bcm4908enet *enet, +- struct bcm4908enet_dma_ring *ring) +-{ +- unsigned long deadline; +- u32 tmp; +- +- enet_maskset(enet, ring->cfg_block + ENET_DMA_CH_CFG, ENET_DMA_CH_CFG_ENABLE, 0); +- +- deadline = jiffies + usecs_to_jiffies(2000); +- do { +- tmp = enet_read(enet, ring->cfg_block + ENET_DMA_CH_CFG); +- if (!(tmp & ENET_DMA_CH_CFG_ENABLE)) +- return; +- enet_maskset(enet, ring->cfg_block + ENET_DMA_CH_CFG, ENET_DMA_CH_CFG_ENABLE, 0); +- usleep_range(10, 30); +- } while (!time_after_eq(jiffies, deadline)); +- +- dev_warn(enet->dev, "Timeout waiting for DMA TX stop\n"); +-} +- +-/*** +- * Ethernet driver +- */ +- +-static void bcm4908enet_gmac_init(struct bcm4908enet *enet) +-{ +- u32 cmd; +- +- cmd = enet_umac_read(enet, UMAC_CMD); +- enet_umac_write(enet, UMAC_CMD, cmd | CMD_SW_RESET); +- enet_umac_write(enet, UMAC_CMD, cmd & ~CMD_SW_RESET); +- +- enet_set(enet, ENET_FLUSH, ENET_FLUSH_RXFIFO_FLUSH | ENET_FLUSH_TXFIFO_FLUSH); +- enet_maskset(enet, ENET_FLUSH, ENET_FLUSH_RXFIFO_FLUSH | ENET_FLUSH_TXFIFO_FLUSH, 0); +- +- enet_set(enet, ENET_MIB_CTRL, ENET_MIB_CTRL_CLR_MIB); +- enet_maskset(enet, ENET_MIB_CTRL, ENET_MIB_CTRL_CLR_MIB, 0); +- +- cmd = enet_umac_read(enet, UMAC_CMD); +- cmd &= ~(CMD_SPEED_MASK << CMD_SPEED_SHIFT); +- cmd &= ~CMD_TX_EN; +- cmd &= ~CMD_RX_EN; +- cmd |= CMD_SPEED_1000 << CMD_SPEED_SHIFT; +- enet_umac_write(enet, UMAC_CMD, cmd); +- +- enet_maskset(enet, ENET_GMAC_STATUS, +- ENET_GMAC_STATUS_ETH_SPEED_MASK | +- ENET_GMAC_STATUS_HD | +- ENET_GMAC_STATUS_AUTO_CFG_EN | +- ENET_GMAC_STATUS_LINK_UP, +- ENET_GMAC_STATUS_ETH_SPEED_1000 | +- ENET_GMAC_STATUS_AUTO_CFG_EN | +- ENET_GMAC_STATUS_LINK_UP); +-} +- +-static irqreturn_t bcm4908enet_irq_handler(int irq, void *dev_id) +-{ +- struct bcm4908enet *enet = dev_id; +- +- bcm4908enet_intrs_off(enet); +- bcm4908enet_intrs_ack(enet); +- +- napi_schedule(&enet->napi); +- +- return IRQ_HANDLED; +-} +- +-static int bcm4908enet_open(struct net_device *netdev) +-{ +- struct bcm4908enet *enet = netdev_priv(netdev); +- struct device *dev = enet->dev; +- int err; +- +- err = request_irq(netdev->irq, bcm4908enet_irq_handler, 0, "enet", enet); +- if (err) { +- dev_err(dev, "Failed to request IRQ %d: %d\n", netdev->irq, err); +- return err; +- } +- +- bcm4908enet_gmac_init(enet); +- bcm4908enet_dma_reset(enet); +- bcm4908enet_dma_init(enet); +- +- enet_umac_set(enet, UMAC_CMD, CMD_TX_EN | CMD_RX_EN); +- +- enet_set(enet, ENET_DMA_CONTROLLER_CFG, ENET_DMA_CTRL_CFG_MASTER_EN); +- enet_maskset(enet, ENET_DMA_CONTROLLER_CFG, ENET_DMA_CTRL_CFG_FLOWC_CH1_EN, 0); +- bcm4908enet_dma_rx_ring_enable(enet, &enet->rx_ring); +- +- napi_enable(&enet->napi); +- netif_carrier_on(netdev); +- netif_start_queue(netdev); +- +- bcm4908enet_intrs_ack(enet); +- bcm4908enet_intrs_on(enet); +- +- return 0; +-} +- +-static int bcm4908enet_stop(struct net_device *netdev) +-{ +- struct bcm4908enet *enet = netdev_priv(netdev); +- +- netif_stop_queue(netdev); +- netif_carrier_off(netdev); +- napi_disable(&enet->napi); +- +- bcm4908enet_dma_rx_ring_disable(enet, &enet->rx_ring); +- bcm4908enet_dma_tx_ring_disable(enet, &enet->tx_ring); +- +- bcm4908enet_dma_uninit(enet); +- +- free_irq(enet->netdev->irq, enet); +- +- return 0; +-} +- +-static int bcm4908enet_start_xmit(struct sk_buff *skb, struct net_device *netdev) +-{ +- struct bcm4908enet *enet = netdev_priv(netdev); +- struct bcm4908enet_dma_ring *ring = &enet->tx_ring; +- struct bcm4908enet_dma_ring_slot *slot; +- struct device *dev = enet->dev; +- struct bcm4908enet_dma_ring_bd *buf_desc; +- int free_buf_descs; +- u32 tmp; +- +- /* Free transmitted skbs */ +- while (ring->read_idx != ring->write_idx) { +- buf_desc = &ring->buf_desc[ring->read_idx]; +- if (buf_desc->ctl & DMA_CTL_STATUS_OWN) +- break; +- slot = &ring->slots[ring->read_idx]; +- +- dma_unmap_single(dev, slot->dma_addr, slot->len, DMA_TO_DEVICE); +- dev_kfree_skb(slot->skb); +- if (++ring->read_idx == ring->length) +- ring->read_idx = 0; +- } +- +- /* Don't use the last empty buf descriptor */ +- if (ring->read_idx <= ring->write_idx) +- free_buf_descs = ring->read_idx - ring->write_idx + ring->length; +- else +- free_buf_descs = ring->read_idx - ring->write_idx; +- if (free_buf_descs < 2) +- return NETDEV_TX_BUSY; +- +- /* Hardware removes OWN bit after sending data */ +- buf_desc = &ring->buf_desc[ring->write_idx]; +- if (unlikely(le32_to_cpu(buf_desc->ctl) & DMA_CTL_STATUS_OWN)) { +- netif_stop_queue(netdev); +- return NETDEV_TX_BUSY; +- } +- +- slot = &ring->slots[ring->write_idx]; +- slot->skb = skb; +- slot->len = skb->len; +- slot->dma_addr = dma_map_single(dev, skb->data, skb->len, DMA_TO_DEVICE); +- if (unlikely(dma_mapping_error(dev, slot->dma_addr))) +- return NETDEV_TX_BUSY; +- +- tmp = skb->len << DMA_CTL_LEN_DESC_BUFLENGTH_SHIFT; +- tmp |= DMA_CTL_STATUS_OWN; +- tmp |= DMA_CTL_STATUS_SOP; +- tmp |= DMA_CTL_STATUS_EOP; +- tmp |= DMA_CTL_STATUS_APPEND_CRC; +- if (ring->write_idx + 1 == ring->length - 1) +- tmp |= DMA_CTL_STATUS_WRAP; +- +- buf_desc->addr = cpu_to_le32((uint32_t)slot->dma_addr); +- buf_desc->ctl = cpu_to_le32(tmp); +- +- bcm4908enet_dma_tx_ring_ensable(enet, &enet->tx_ring); +- +- if (++ring->write_idx == ring->length - 1) +- ring->write_idx = 0; +- enet->netdev->stats.tx_bytes += skb->len; +- enet->netdev->stats.tx_packets++; +- +- return NETDEV_TX_OK; +-} +- +-static int bcm4908enet_poll(struct napi_struct *napi, int weight) +-{ +- struct bcm4908enet *enet = container_of(napi, struct bcm4908enet, napi); +- struct device *dev = enet->dev; +- int handled = 0; +- +- while (handled < weight) { +- struct bcm4908enet_dma_ring_bd *buf_desc; +- struct bcm4908enet_dma_ring_slot slot; +- u32 ctl; +- int len; +- int err; +- +- buf_desc = &enet->rx_ring.buf_desc[enet->rx_ring.read_idx]; +- ctl = le32_to_cpu(buf_desc->ctl); +- if (ctl & DMA_CTL_STATUS_OWN) +- break; +- +- slot = enet->rx_ring.slots[enet->rx_ring.read_idx]; +- +- /* Provide new buffer before unpinning the old one */ +- err = bcm4908enet_dma_alloc_rx_buf(enet, enet->rx_ring.read_idx); +- if (err) +- break; +- +- if (++enet->rx_ring.read_idx == enet->rx_ring.length) +- enet->rx_ring.read_idx = 0; +- +- len = (ctl & DMA_CTL_LEN_DESC_BUFLENGTH) >> DMA_CTL_LEN_DESC_BUFLENGTH_SHIFT; +- +- if (len < ENET_MTU_MIN || +- (ctl & (DMA_CTL_STATUS_SOP | DMA_CTL_STATUS_EOP)) != (DMA_CTL_STATUS_SOP | DMA_CTL_STATUS_EOP)) { +- enet->netdev->stats.rx_dropped++; +- break; +- } +- +- dma_unmap_single(dev, slot.dma_addr, slot.len, DMA_FROM_DEVICE); +- +- skb_put(slot.skb, len - 4 + 2); +- slot.skb->protocol = eth_type_trans(slot.skb, enet->netdev); +- netif_receive_skb(slot.skb); +- +- enet->netdev->stats.rx_packets++; +- enet->netdev->stats.rx_bytes += len; +- } +- +- if (handled < weight) { +- napi_complete_done(napi, handled); +- bcm4908enet_intrs_on(enet); +- } +- +- return handled; +-} +- +-static const struct net_device_ops bcm96xx_netdev_ops = { +- .ndo_open = bcm4908enet_open, +- .ndo_stop = bcm4908enet_stop, +- .ndo_start_xmit = bcm4908enet_start_xmit, +- .ndo_set_mac_address = eth_mac_addr, +-}; +- +-static int bcm4908enet_probe(struct platform_device *pdev) +-{ +- struct device *dev = &pdev->dev; +- struct net_device *netdev; +- struct bcm4908enet *enet; +- int err; +- +- netdev = devm_alloc_etherdev(dev, sizeof(*enet)); +- if (!netdev) +- return -ENOMEM; +- +- enet = netdev_priv(netdev); +- enet->dev = dev; +- enet->netdev = netdev; +- +- enet->base = devm_platform_ioremap_resource(pdev, 0); +- if (IS_ERR(enet->base)) { +- dev_err(dev, "Failed to map registers: %ld\n", PTR_ERR(enet->base)); +- return PTR_ERR(enet->base); +- } +- +- netdev->irq = platform_get_irq_byname(pdev, "rx"); +- if (netdev->irq < 0) +- return netdev->irq; +- +- dma_set_coherent_mask(dev, DMA_BIT_MASK(32)); +- +- err = bcm4908enet_dma_alloc(enet); +- if (err) +- return err; +- +- SET_NETDEV_DEV(netdev, &pdev->dev); +- eth_hw_addr_random(netdev); +- netdev->netdev_ops = &bcm96xx_netdev_ops; +- netdev->min_mtu = ETH_ZLEN; +- netdev->mtu = ENET_MTU_MAX; +- netdev->max_mtu = ENET_MTU_MAX; +- netif_napi_add(netdev, &enet->napi, bcm4908enet_poll, 64); +- +- err = register_netdev(netdev); +- if (err) { +- bcm4908enet_dma_free(enet); +- return err; +- } +- +- platform_set_drvdata(pdev, enet); +- +- return 0; +-} +- +-static int bcm4908enet_remove(struct platform_device *pdev) +-{ +- struct bcm4908enet *enet = platform_get_drvdata(pdev); +- +- unregister_netdev(enet->netdev); +- netif_napi_del(&enet->napi); +- bcm4908enet_dma_free(enet); +- +- return 0; +-} +- +-static const struct of_device_id bcm4908enet_of_match[] = { +- { .compatible = "brcm,bcm4908enet"}, +- {}, +-}; +- +-static struct platform_driver bcm4908enet_driver = { +- .driver = { +- .name = "bcm4908enet", +- .of_match_table = bcm4908enet_of_match, +- }, +- .probe = bcm4908enet_probe, +- .remove = bcm4908enet_remove, +-}; +-module_platform_driver(bcm4908enet_driver); +- +-MODULE_LICENSE("GPL v2"); +-MODULE_DEVICE_TABLE(of, bcm4908enet_of_match); +--- /dev/null ++++ b/drivers/net/ethernet/broadcom/bcm4908_enet.c +@@ -0,0 +1,677 @@ ++// SPDX-License-Identifier: GPL-2.0-only ++/* ++ * Copyright (C) 2021 Rafał Miłecki <rafal@milecki.pl> ++ */ ++ ++#include <linux/delay.h> ++#include <linux/etherdevice.h> ++#include <linux/interrupt.h> ++#include <linux/module.h> ++#include <linux/of.h> ++#include <linux/platform_device.h> ++#include <linux/slab.h> ++#include <linux/string.h> ++ ++#include "bcm4908_enet.h" ++#include "unimac.h" ++ ++#define ENET_DMA_CH_RX_CFG ENET_DMA_CH0_CFG ++#define ENET_DMA_CH_TX_CFG ENET_DMA_CH1_CFG ++#define ENET_DMA_CH_RX_STATE_RAM ENET_DMA_CH0_STATE_RAM ++#define ENET_DMA_CH_TX_STATE_RAM ENET_DMA_CH1_STATE_RAM ++ ++#define ENET_TX_BDS_NUM 200 ++#define ENET_RX_BDS_NUM 200 ++#define ENET_RX_BDS_NUM_MAX 8192 ++ ++#define ENET_DMA_INT_DEFAULTS (ENET_DMA_CH_CFG_INT_DONE | \ ++ ENET_DMA_CH_CFG_INT_NO_DESC | \ ++ ENET_DMA_CH_CFG_INT_BUFF_DONE) ++#define ENET_DMA_MAX_BURST_LEN 8 /* in 64 bit words */ ++ ++#define ENET_MTU_MIN 60 ++#define ENET_MTU_MAX 1500 /* Is it possible to support 2044? */ ++#define ENET_MTU_MAX_EXTRA_SIZE 32 /* L2 */ ++ ++struct bcm4908_enet_dma_ring_bd { ++ __le32 ctl; ++ __le32 addr; ++} __packed; ++ ++struct bcm4908_enet_dma_ring_slot { ++ struct sk_buff *skb; ++ unsigned int len; ++ dma_addr_t dma_addr; ++}; ++ ++struct bcm4908_enet_dma_ring { ++ int is_tx; ++ int read_idx; ++ int write_idx; ++ int length; ++ u16 cfg_block; ++ u16 st_ram_block; ++ ++ union { ++ void *cpu_addr; ++ struct bcm4908_enet_dma_ring_bd *buf_desc; ++ }; ++ dma_addr_t dma_addr; ++ ++ struct bcm4908_enet_dma_ring_slot *slots; ++}; ++ ++struct bcm4908_enet { ++ struct device *dev; ++ struct net_device *netdev; ++ struct napi_struct napi; ++ void __iomem *base; ++ ++ struct bcm4908_enet_dma_ring tx_ring; ++ struct bcm4908_enet_dma_ring rx_ring; ++}; ++ ++/*** ++ * R/W ops ++ */ ++ ++static inline u32 enet_read(struct bcm4908_enet *enet, u16 offset) ++{ ++ return readl(enet->base + offset); ++} ++ ++static inline void enet_write(struct bcm4908_enet *enet, u16 offset, u32 value) ++{ ++ writel(value, enet->base + offset); ++} ++ ++static inline void enet_maskset(struct bcm4908_enet *enet, u16 offset, u32 mask, u32 set) ++{ ++ u32 val; ++ ++ WARN_ON(set & ~mask); ++ ++ val = enet_read(enet, offset); ++ val = (val & ~mask) | (set & mask); ++ enet_write(enet, offset, val); ++} ++ ++static inline void enet_set(struct bcm4908_enet *enet, u16 offset, u32 set) ++{ ++ enet_maskset(enet, offset, set, set); ++} ++ ++static inline u32 enet_umac_read(struct bcm4908_enet *enet, u16 offset) ++{ ++ return enet_read(enet, ENET_UNIMAC + offset); ++} ++ ++static inline void enet_umac_write(struct bcm4908_enet *enet, u16 offset, u32 value) ++{ ++ enet_write(enet, ENET_UNIMAC + offset, value); ++} ++ ++static inline void enet_umac_maskset(struct bcm4908_enet *enet, u16 offset, u32 mask, u32 set) ++{ ++ enet_maskset(enet, ENET_UNIMAC + offset, mask, set); ++} ++ ++static inline void enet_umac_set(struct bcm4908_enet *enet, u16 offset, u32 set) ++{ ++ enet_set(enet, ENET_UNIMAC + offset, set); ++} ++ ++/*** ++ * Helpers ++ */ ++ ++static void bcm4908_enet_intrs_on(struct bcm4908_enet *enet) ++{ ++ enet_write(enet, ENET_DMA_CH_RX_CFG + ENET_DMA_CH_CFG_INT_MASK, ENET_DMA_INT_DEFAULTS); ++} ++ ++static void bcm4908_enet_intrs_off(struct bcm4908_enet *enet) ++{ ++ enet_write(enet, ENET_DMA_CH_RX_CFG + ENET_DMA_CH_CFG_INT_MASK, 0); ++} ++ ++static void bcm4908_enet_intrs_ack(struct bcm4908_enet *enet) ++{ ++ enet_write(enet, ENET_DMA_CH_RX_CFG + ENET_DMA_CH_CFG_INT_STAT, ENET_DMA_INT_DEFAULTS); ++} ++ ++/*** ++ * DMA ++ */ ++ ++static int bcm4908_dma_alloc_buf_descs(struct bcm4908_enet *enet, ++ struct bcm4908_enet_dma_ring *ring) ++{ ++ int size = ring->length * sizeof(struct bcm4908_enet_dma_ring_bd); ++ struct device *dev = enet->dev; ++ ++ ring->cpu_addr = dma_alloc_coherent(dev, size, &ring->dma_addr, GFP_KERNEL); ++ if (!ring->cpu_addr) ++ return -ENOMEM; ++ ++ if (((uintptr_t)ring->cpu_addr) & (0x40 - 1)) { ++ dev_err(dev, "Invalid DMA ring alignment\n"); ++ goto err_free_buf_descs; ++ } ++ ++ ring->slots = kzalloc(ring->length * sizeof(*ring->slots), GFP_KERNEL); ++ if (!ring->slots) ++ goto err_free_buf_descs; ++ ++ memset(ring->cpu_addr, 0, size); ++ ++ ring->read_idx = 0; ++ ring->write_idx = 0; ++ ++ return 0; ++ ++err_free_buf_descs: ++ dma_free_coherent(dev, size, ring->cpu_addr, ring->dma_addr); ++ return -ENOMEM; ++} ++ ++static void bcm4908_enet_dma_free(struct bcm4908_enet *enet) ++{ ++ struct bcm4908_enet_dma_ring *tx_ring = &enet->tx_ring; ++ struct bcm4908_enet_dma_ring *rx_ring = &enet->rx_ring; ++ struct device *dev = enet->dev; ++ int size; ++ ++ size = rx_ring->length * sizeof(struct bcm4908_enet_dma_ring_bd); ++ if (rx_ring->cpu_addr) ++ dma_free_coherent(dev, size, rx_ring->cpu_addr, rx_ring->dma_addr); ++ kfree(rx_ring->slots); ++ ++ size = tx_ring->length * sizeof(struct bcm4908_enet_dma_ring_bd); ++ if (tx_ring->cpu_addr) ++ dma_free_coherent(dev, size, tx_ring->cpu_addr, tx_ring->dma_addr); ++ kfree(tx_ring->slots); ++} ++ ++static int bcm4908_enet_dma_alloc(struct bcm4908_enet *enet) ++{ ++ struct bcm4908_enet_dma_ring *tx_ring = &enet->tx_ring; ++ struct bcm4908_enet_dma_ring *rx_ring = &enet->rx_ring; ++ struct device *dev = enet->dev; ++ int err; ++ ++ tx_ring->length = ENET_TX_BDS_NUM; ++ tx_ring->is_tx = 1; ++ tx_ring->cfg_block = ENET_DMA_CH_TX_CFG; ++ tx_ring->st_ram_block = ENET_DMA_CH_TX_STATE_RAM; ++ err = bcm4908_dma_alloc_buf_descs(enet, tx_ring); ++ if (err) { ++ dev_err(dev, "Failed to alloc TX buf descriptors: %d\n", err); ++ return err; ++ } ++ ++ rx_ring->length = ENET_RX_BDS_NUM; ++ rx_ring->is_tx = 0; ++ rx_ring->cfg_block = ENET_DMA_CH_RX_CFG; ++ rx_ring->st_ram_block = ENET_DMA_CH_RX_STATE_RAM; ++ err = bcm4908_dma_alloc_buf_descs(enet, rx_ring); ++ if (err) { ++ dev_err(dev, "Failed to alloc RX buf descriptors: %d\n", err); ++ bcm4908_enet_dma_free(enet); ++ return err; ++ } ++ ++ return 0; ++} ++ ++static void bcm4908_enet_dma_reset(struct bcm4908_enet *enet) ++{ ++ struct bcm4908_enet_dma_ring *rings[] = { &enet->rx_ring, &enet->tx_ring }; ++ int i; ++ ++ /* Disable the DMA controller and channel */ ++ for (i = 0; i < ARRAY_SIZE(rings); i++) ++ enet_write(enet, rings[i]->cfg_block + ENET_DMA_CH_CFG, 0); ++ enet_maskset(enet, ENET_DMA_CONTROLLER_CFG, ENET_DMA_CTRL_CFG_MASTER_EN, 0); ++ ++ /* Reset channels state */ ++ for (i = 0; i < ARRAY_SIZE(rings); i++) { ++ struct bcm4908_enet_dma_ring *ring = rings[i]; ++ ++ enet_write(enet, ring->st_ram_block + ENET_DMA_CH_STATE_RAM_BASE_DESC_PTR, 0); ++ enet_write(enet, ring->st_ram_block + ENET_DMA_CH_STATE_RAM_STATE_DATA, 0); ++ enet_write(enet, ring->st_ram_block + ENET_DMA_CH_STATE_RAM_DESC_LEN_STATUS, 0); ++ enet_write(enet, ring->st_ram_block + ENET_DMA_CH_STATE_RAM_DESC_BASE_BUFPTR, 0); ++ } ++} ++ ++static int bcm4908_enet_dma_alloc_rx_buf(struct bcm4908_enet *enet, unsigned int idx) ++{ ++ struct bcm4908_enet_dma_ring_bd *buf_desc = &enet->rx_ring.buf_desc[idx]; ++ struct bcm4908_enet_dma_ring_slot *slot = &enet->rx_ring.slots[idx]; ++ struct device *dev = enet->dev; ++ u32 tmp; ++ int err; ++ ++ slot->len = ENET_MTU_MAX + ENET_MTU_MAX_EXTRA_SIZE; ++ ++ slot->skb = netdev_alloc_skb(enet->netdev, slot->len); ++ if (!slot->skb) ++ return -ENOMEM; ++ ++ slot->dma_addr = dma_map_single(dev, slot->skb->data, slot->len, DMA_FROM_DEVICE); ++ err = dma_mapping_error(dev, slot->dma_addr); ++ if (err) { ++ dev_err(dev, "Failed to map DMA buffer: %d\n", err); ++ kfree_skb(slot->skb); ++ slot->skb = NULL; ++ return err; ++ } ++ ++ tmp = slot->len << DMA_CTL_LEN_DESC_BUFLENGTH_SHIFT; ++ tmp |= DMA_CTL_STATUS_OWN; ++ if (idx == enet->rx_ring.length - 1) ++ tmp |= DMA_CTL_STATUS_WRAP; ++ buf_desc->ctl = cpu_to_le32(tmp); ++ buf_desc->addr = cpu_to_le32(slot->dma_addr); ++ ++ return 0; ++} ++ ++static void bcm4908_enet_dma_ring_init(struct bcm4908_enet *enet, ++ struct bcm4908_enet_dma_ring *ring) ++{ ++ int reset_channel = 0; /* We support only 1 main channel (with TX and RX) */ ++ int reset_subch = ring->is_tx ? 1 : 0; ++ ++ /* Reset the DMA channel */ ++ enet_write(enet, ENET_DMA_CTRL_CHANNEL_RESET, BIT(reset_channel * 2 + reset_subch)); ++ enet_write(enet, ENET_DMA_CTRL_CHANNEL_RESET, 0); ++ ++ enet_write(enet, ring->cfg_block + ENET_DMA_CH_CFG, 0); ++ enet_write(enet, ring->cfg_block + ENET_DMA_CH_CFG_MAX_BURST, ENET_DMA_MAX_BURST_LEN); ++ enet_write(enet, ring->cfg_block + ENET_DMA_CH_CFG_INT_MASK, 0); ++ ++ enet_write(enet, ring->st_ram_block + ENET_DMA_CH_STATE_RAM_BASE_DESC_PTR, ++ (uint32_t)ring->dma_addr); ++} ++ ++static void bcm4908_enet_dma_uninit(struct bcm4908_enet *enet) ++{ ++ struct bcm4908_enet_dma_ring *rx_ring = &enet->rx_ring; ++ struct bcm4908_enet_dma_ring_slot *slot; ++ struct device *dev = enet->dev; ++ int i; ++ ++ for (i = rx_ring->length - 1; i >= 0; i--) { ++ slot = &rx_ring->slots[i]; ++ if (!slot->skb) ++ continue; ++ dma_unmap_single(dev, slot->dma_addr, slot->len, DMA_FROM_DEVICE); ++ kfree_skb(slot->skb); ++ slot->skb = NULL; ++ } ++} ++ ++static int bcm4908_enet_dma_init(struct bcm4908_enet *enet) ++{ ++ struct bcm4908_enet_dma_ring *rx_ring = &enet->rx_ring; ++ struct device *dev = enet->dev; ++ int err; ++ int i; ++ ++ for (i = 0; i < rx_ring->length; i++) { ++ err = bcm4908_enet_dma_alloc_rx_buf(enet, i); ++ if (err) { ++ dev_err(dev, "Failed to alloc RX buffer: %d\n", err); ++ bcm4908_enet_dma_uninit(enet); ++ return err; ++ } ++ } ++ ++ bcm4908_enet_dma_ring_init(enet, &enet->tx_ring); ++ bcm4908_enet_dma_ring_init(enet, &enet->rx_ring); ++ ++ return 0; ++} ++ ++static void bcm4908_enet_dma_tx_ring_ensable(struct bcm4908_enet *enet, ++ struct bcm4908_enet_dma_ring *ring) ++{ ++ enet_write(enet, ring->cfg_block + ENET_DMA_CH_CFG, ENET_DMA_CH_CFG_ENABLE); ++} ++ ++static void bcm4908_enet_dma_tx_ring_disable(struct bcm4908_enet *enet, ++ struct bcm4908_enet_dma_ring *ring) ++{ ++ enet_write(enet, ring->cfg_block + ENET_DMA_CH_CFG, 0); ++} ++ ++static void bcm4908_enet_dma_rx_ring_enable(struct bcm4908_enet *enet, ++ struct bcm4908_enet_dma_ring *ring) ++{ ++ enet_set(enet, ring->cfg_block + ENET_DMA_CH_CFG, ENET_DMA_CH_CFG_ENABLE); ++} ++ ++static void bcm4908_enet_dma_rx_ring_disable(struct bcm4908_enet *enet, ++ struct bcm4908_enet_dma_ring *ring) ++{ ++ unsigned long deadline; ++ u32 tmp; ++ ++ enet_maskset(enet, ring->cfg_block + ENET_DMA_CH_CFG, ENET_DMA_CH_CFG_ENABLE, 0); ++ ++ deadline = jiffies + usecs_to_jiffies(2000); ++ do { ++ tmp = enet_read(enet, ring->cfg_block + ENET_DMA_CH_CFG); ++ if (!(tmp & ENET_DMA_CH_CFG_ENABLE)) ++ return; ++ enet_maskset(enet, ring->cfg_block + ENET_DMA_CH_CFG, ENET_DMA_CH_CFG_ENABLE, 0); ++ usleep_range(10, 30); ++ } while (!time_after_eq(jiffies, deadline)); ++ ++ dev_warn(enet->dev, "Timeout waiting for DMA TX stop\n"); ++} ++ ++/*** ++ * Ethernet driver ++ */ ++ ++static void bcm4908_enet_gmac_init(struct bcm4908_enet *enet) ++{ ++ u32 cmd; ++ ++ cmd = enet_umac_read(enet, UMAC_CMD); ++ enet_umac_write(enet, UMAC_CMD, cmd | CMD_SW_RESET); ++ enet_umac_write(enet, UMAC_CMD, cmd & ~CMD_SW_RESET); ++ ++ enet_set(enet, ENET_FLUSH, ENET_FLUSH_RXFIFO_FLUSH | ENET_FLUSH_TXFIFO_FLUSH); ++ enet_maskset(enet, ENET_FLUSH, ENET_FLUSH_RXFIFO_FLUSH | ENET_FLUSH_TXFIFO_FLUSH, 0); ++ ++ enet_set(enet, ENET_MIB_CTRL, ENET_MIB_CTRL_CLR_MIB); ++ enet_maskset(enet, ENET_MIB_CTRL, ENET_MIB_CTRL_CLR_MIB, 0); ++ ++ cmd = enet_umac_read(enet, UMAC_CMD); ++ cmd &= ~(CMD_SPEED_MASK << CMD_SPEED_SHIFT); ++ cmd &= ~CMD_TX_EN; ++ cmd &= ~CMD_RX_EN; ++ cmd |= CMD_SPEED_1000 << CMD_SPEED_SHIFT; ++ enet_umac_write(enet, UMAC_CMD, cmd); ++ ++ enet_maskset(enet, ENET_GMAC_STATUS, ++ ENET_GMAC_STATUS_ETH_SPEED_MASK | ++ ENET_GMAC_STATUS_HD | ++ ENET_GMAC_STATUS_AUTO_CFG_EN | ++ ENET_GMAC_STATUS_LINK_UP, ++ ENET_GMAC_STATUS_ETH_SPEED_1000 | ++ ENET_GMAC_STATUS_AUTO_CFG_EN | ++ ENET_GMAC_STATUS_LINK_UP); ++} ++ ++static irqreturn_t bcm4908_enet_irq_handler(int irq, void *dev_id) ++{ ++ struct bcm4908_enet *enet = dev_id; ++ ++ bcm4908_enet_intrs_off(enet); ++ bcm4908_enet_intrs_ack(enet); ++ ++ napi_schedule(&enet->napi); ++ ++ return IRQ_HANDLED; ++} ++ ++static int bcm4908_enet_open(struct net_device *netdev) ++{ ++ struct bcm4908_enet *enet = netdev_priv(netdev); ++ struct device *dev = enet->dev; ++ int err; ++ ++ err = request_irq(netdev->irq, bcm4908_enet_irq_handler, 0, "enet", enet); ++ if (err) { ++ dev_err(dev, "Failed to request IRQ %d: %d\n", netdev->irq, err); ++ return err; ++ } ++ ++ bcm4908_enet_gmac_init(enet); ++ bcm4908_enet_dma_reset(enet); ++ bcm4908_enet_dma_init(enet); ++ ++ enet_umac_set(enet, UMAC_CMD, CMD_TX_EN | CMD_RX_EN); ++ ++ enet_set(enet, ENET_DMA_CONTROLLER_CFG, ENET_DMA_CTRL_CFG_MASTER_EN); ++ enet_maskset(enet, ENET_DMA_CONTROLLER_CFG, ENET_DMA_CTRL_CFG_FLOWC_CH1_EN, 0); ++ bcm4908_enet_dma_rx_ring_enable(enet, &enet->rx_ring); ++ ++ napi_enable(&enet->napi); ++ netif_carrier_on(netdev); ++ netif_start_queue(netdev); ++ ++ bcm4908_enet_intrs_ack(enet); ++ bcm4908_enet_intrs_on(enet); ++ ++ return 0; ++} ++ ++static int bcm4908_enet_stop(struct net_device *netdev) ++{ ++ struct bcm4908_enet *enet = netdev_priv(netdev); ++ ++ netif_stop_queue(netdev); ++ netif_carrier_off(netdev); ++ napi_disable(&enet->napi); ++ ++ bcm4908_enet_dma_rx_ring_disable(enet, &enet->rx_ring); ++ bcm4908_enet_dma_tx_ring_disable(enet, &enet->tx_ring); ++ ++ bcm4908_enet_dma_uninit(enet); ++ ++ free_irq(enet->netdev->irq, enet); ++ ++ return 0; ++} ++ ++static int bcm4908_enet_start_xmit(struct sk_buff *skb, struct net_device *netdev) ++{ ++ struct bcm4908_enet *enet = netdev_priv(netdev); ++ struct bcm4908_enet_dma_ring *ring = &enet->tx_ring; ++ struct bcm4908_enet_dma_ring_slot *slot; ++ struct device *dev = enet->dev; ++ struct bcm4908_enet_dma_ring_bd *buf_desc; ++ int free_buf_descs; ++ u32 tmp; ++ ++ /* Free transmitted skbs */ ++ while (ring->read_idx != ring->write_idx) { ++ buf_desc = &ring->buf_desc[ring->read_idx]; ++ if (buf_desc->ctl & DMA_CTL_STATUS_OWN) ++ break; ++ slot = &ring->slots[ring->read_idx]; ++ ++ dma_unmap_single(dev, slot->dma_addr, slot->len, DMA_TO_DEVICE); ++ dev_kfree_skb(slot->skb); ++ if (++ring->read_idx == ring->length) ++ ring->read_idx = 0; ++ } ++ ++ /* Don't use the last empty buf descriptor */ ++ if (ring->read_idx <= ring->write_idx) ++ free_buf_descs = ring->read_idx - ring->write_idx + ring->length; ++ else ++ free_buf_descs = ring->read_idx - ring->write_idx; ++ if (free_buf_descs < 2) ++ return NETDEV_TX_BUSY; ++ ++ /* Hardware removes OWN bit after sending data */ ++ buf_desc = &ring->buf_desc[ring->write_idx]; ++ if (unlikely(le32_to_cpu(buf_desc->ctl) & DMA_CTL_STATUS_OWN)) { ++ netif_stop_queue(netdev); ++ return NETDEV_TX_BUSY; ++ } ++ ++ slot = &ring->slots[ring->write_idx]; ++ slot->skb = skb; ++ slot->len = skb->len; ++ slot->dma_addr = dma_map_single(dev, skb->data, skb->len, DMA_TO_DEVICE); ++ if (unlikely(dma_mapping_error(dev, slot->dma_addr))) ++ return NETDEV_TX_BUSY; ++ ++ tmp = skb->len << DMA_CTL_LEN_DESC_BUFLENGTH_SHIFT; ++ tmp |= DMA_CTL_STATUS_OWN; ++ tmp |= DMA_CTL_STATUS_SOP; ++ tmp |= DMA_CTL_STATUS_EOP; ++ tmp |= DMA_CTL_STATUS_APPEND_CRC; ++ if (ring->write_idx + 1 == ring->length - 1) ++ tmp |= DMA_CTL_STATUS_WRAP; ++ ++ buf_desc->addr = cpu_to_le32((uint32_t)slot->dma_addr); ++ buf_desc->ctl = cpu_to_le32(tmp); ++ ++ bcm4908_enet_dma_tx_ring_ensable(enet, &enet->tx_ring); ++ ++ if (++ring->write_idx == ring->length - 1) ++ ring->write_idx = 0; ++ enet->netdev->stats.tx_bytes += skb->len; ++ enet->netdev->stats.tx_packets++; ++ ++ return NETDEV_TX_OK; ++} ++ ++static int bcm4908_enet_poll(struct napi_struct *napi, int weight) ++{ ++ struct bcm4908_enet *enet = container_of(napi, struct bcm4908_enet, napi); ++ struct device *dev = enet->dev; ++ int handled = 0; ++ ++ while (handled < weight) { ++ struct bcm4908_enet_dma_ring_bd *buf_desc; ++ struct bcm4908_enet_dma_ring_slot slot; ++ u32 ctl; ++ int len; ++ int err; ++ ++ buf_desc = &enet->rx_ring.buf_desc[enet->rx_ring.read_idx]; ++ ctl = le32_to_cpu(buf_desc->ctl); ++ if (ctl & DMA_CTL_STATUS_OWN) ++ break; ++ ++ slot = enet->rx_ring.slots[enet->rx_ring.read_idx]; ++ ++ /* Provide new buffer before unpinning the old one */ ++ err = bcm4908_enet_dma_alloc_rx_buf(enet, enet->rx_ring.read_idx); ++ if (err) ++ break; ++ ++ if (++enet->rx_ring.read_idx == enet->rx_ring.length) ++ enet->rx_ring.read_idx = 0; ++ ++ len = (ctl & DMA_CTL_LEN_DESC_BUFLENGTH) >> DMA_CTL_LEN_DESC_BUFLENGTH_SHIFT; ++ ++ if (len < ENET_MTU_MIN || ++ (ctl & (DMA_CTL_STATUS_SOP | DMA_CTL_STATUS_EOP)) != (DMA_CTL_STATUS_SOP | DMA_CTL_STATUS_EOP)) { ++ enet->netdev->stats.rx_dropped++; ++ break; ++ } ++ ++ dma_unmap_single(dev, slot.dma_addr, slot.len, DMA_FROM_DEVICE); ++ ++ skb_put(slot.skb, len - 4 + 2); ++ slot.skb->protocol = eth_type_trans(slot.skb, enet->netdev); ++ netif_receive_skb(slot.skb); ++ ++ enet->netdev->stats.rx_packets++; ++ enet->netdev->stats.rx_bytes += len; ++ } ++ ++ if (handled < weight) { ++ napi_complete_done(napi, handled); ++ bcm4908_enet_intrs_on(enet); ++ } ++ ++ return handled; ++} ++ ++static const struct net_device_ops bcm96xx_netdev_ops = { ++ .ndo_open = bcm4908_enet_open, ++ .ndo_stop = bcm4908_enet_stop, ++ .ndo_start_xmit = bcm4908_enet_start_xmit, ++ .ndo_set_mac_address = eth_mac_addr, ++}; ++ ++static int bcm4908_enet_probe(struct platform_device *pdev) ++{ ++ struct device *dev = &pdev->dev; ++ struct net_device *netdev; ++ struct bcm4908_enet *enet; ++ int err; ++ ++ netdev = devm_alloc_etherdev(dev, sizeof(*enet)); ++ if (!netdev) ++ return -ENOMEM; ++ ++ enet = netdev_priv(netdev); ++ enet->dev = dev; ++ enet->netdev = netdev; ++ ++ enet->base = devm_platform_ioremap_resource(pdev, 0); ++ if (IS_ERR(enet->base)) { ++ dev_err(dev, "Failed to map registers: %ld\n", PTR_ERR(enet->base)); ++ return PTR_ERR(enet->base); ++ } ++ ++ netdev->irq = platform_get_irq_byname(pdev, "rx"); ++ if (netdev->irq < 0) ++ return netdev->irq; ++ ++ dma_set_coherent_mask(dev, DMA_BIT_MASK(32)); ++ ++ err = bcm4908_enet_dma_alloc(enet); ++ if (err) ++ return err; ++ ++ SET_NETDEV_DEV(netdev, &pdev->dev); ++ eth_hw_addr_random(netdev); ++ netdev->netdev_ops = &bcm96xx_netdev_ops; ++ netdev->min_mtu = ETH_ZLEN; ++ netdev->mtu = ENET_MTU_MAX; ++ netdev->max_mtu = ENET_MTU_MAX; ++ netif_napi_add(netdev, &enet->napi, bcm4908_enet_poll, 64); ++ ++ err = register_netdev(netdev); ++ if (err) { ++ bcm4908_enet_dma_free(enet); ++ return err; ++ } ++ ++ platform_set_drvdata(pdev, enet); ++ ++ return 0; ++} ++ ++static int bcm4908_enet_remove(struct platform_device *pdev) ++{ ++ struct bcm4908_enet *enet = platform_get_drvdata(pdev); ++ ++ unregister_netdev(enet->netdev); ++ netif_napi_del(&enet->napi); ++ bcm4908_enet_dma_free(enet); ++ ++ return 0; ++} ++ ++static const struct of_device_id bcm4908_enet_of_match[] = { ++ { .compatible = "brcm,bcm4908-enet"}, ++ {}, ++}; ++ ++static struct platform_driver bcm4908_enet_driver = { ++ .driver = { ++ .name = "bcm4908_enet", ++ .of_match_table = bcm4908_enet_of_match, ++ }, ++ .probe = bcm4908_enet_probe, ++ .remove = bcm4908_enet_remove, ++}; ++module_platform_driver(bcm4908_enet_driver); ++ ++MODULE_LICENSE("GPL v2"); ++MODULE_DEVICE_TABLE(of, bcm4908_enet_of_match); +--- a/drivers/net/ethernet/broadcom/bcm4908enet.h ++++ /dev/null +@@ -1,96 +0,0 @@ +-/* SPDX-License-Identifier: GPL-2.0-only */ +-#ifndef __BCM4908ENET_H +-#define __BCM4908ENET_H +- +-#define ENET_CONTROL 0x000 +-#define ENET_MIB_CTRL 0x004 +-#define ENET_MIB_CTRL_CLR_MIB 0x00000001 +-#define ENET_RX_ERR_MASK 0x008 +-#define ENET_MIB_MAX_PKT_SIZE 0x00C +-#define ENET_MIB_MAX_PKT_SIZE_VAL 0x00003fff +-#define ENET_DIAG_OUT 0x01c +-#define ENET_ENABLE_DROP_PKT 0x020 +-#define ENET_IRQ_ENABLE 0x024 +-#define ENET_IRQ_ENABLE_OVFL 0x00000001 +-#define ENET_GMAC_STATUS 0x028 +-#define ENET_GMAC_STATUS_ETH_SPEED_MASK 0x00000003 +-#define ENET_GMAC_STATUS_ETH_SPEED_10 0x00000000 +-#define ENET_GMAC_STATUS_ETH_SPEED_100 0x00000001 +-#define ENET_GMAC_STATUS_ETH_SPEED_1000 0x00000002 +-#define ENET_GMAC_STATUS_HD 0x00000004 +-#define ENET_GMAC_STATUS_AUTO_CFG_EN 0x00000008 +-#define ENET_GMAC_STATUS_LINK_UP 0x00000010 +-#define ENET_IRQ_STATUS 0x02c +-#define ENET_IRQ_STATUS_OVFL 0x00000001 +-#define ENET_OVERFLOW_COUNTER 0x030 +-#define ENET_FLUSH 0x034 +-#define ENET_FLUSH_RXFIFO_FLUSH 0x00000001 +-#define ENET_FLUSH_TXFIFO_FLUSH 0x00000002 +-#define ENET_RSV_SELECT 0x038 +-#define ENET_BP_FORCE 0x03c +-#define ENET_BP_FORCE_FORCE 0x00000001 +-#define ENET_DMA_RX_OK_TO_SEND_COUNT 0x040 +-#define ENET_DMA_RX_OK_TO_SEND_COUNT_VAL 0x0000000f +-#define ENET_TX_CRC_CTRL 0x044 +-#define ENET_MIB 0x200 +-#define ENET_UNIMAC 0x400 +-#define ENET_DMA 0x800 +-#define ENET_DMA_CONTROLLER_CFG 0x800 +-#define ENET_DMA_CTRL_CFG_MASTER_EN 0x00000001 +-#define ENET_DMA_CTRL_CFG_FLOWC_CH1_EN 0x00000002 +-#define ENET_DMA_CTRL_CFG_FLOWC_CH3_EN 0x00000004 +-#define ENET_DMA_FLOWCTL_CH1_THRESH_LO 0x804 +-#define ENET_DMA_FLOWCTL_CH1_THRESH_HI 0x808 +-#define ENET_DMA_FLOWCTL_CH1_ALLOC 0x80c +-#define ENET_DMA_FLOWCTL_CH1_ALLOC_FORCE 0x80000000 +-#define ENET_DMA_FLOWCTL_CH3_THRESH_LO 0x810 +-#define ENET_DMA_FLOWCTL_CH3_THRESH_HI 0x814 +-#define ENET_DMA_FLOWCTL_CH3_ALLOC 0x818 +-#define ENET_DMA_FLOWCTL_CH5_THRESH_LO 0x81C +-#define ENET_DMA_FLOWCTL_CH5_THRESH_HI 0x820 +-#define ENET_DMA_FLOWCTL_CH5_ALLOC 0x824 +-#define ENET_DMA_FLOWCTL_CH7_THRESH_LO 0x828 +-#define ENET_DMA_FLOWCTL_CH7_THRESH_HI 0x82C +-#define ENET_DMA_FLOWCTL_CH7_ALLOC 0x830 +-#define ENET_DMA_CTRL_CHANNEL_RESET 0x834 +-#define ENET_DMA_CTRL_CHANNEL_DEBUG 0x838 +-#define ENET_DMA_CTRL_GLOBAL_INTERRUPT_STATUS 0x840 +-#define ENET_DMA_CTRL_GLOBAL_INTERRUPT_MASK 0x844 +-#define ENET_DMA_CH0_CFG 0xa00 /* RX */ +-#define ENET_DMA_CH1_CFG 0xa10 /* TX */ +-#define ENET_DMA_CH0_STATE_RAM 0xc00 /* RX */ +-#define ENET_DMA_CH1_STATE_RAM 0xc10 /* TX */ +- +-#define ENET_DMA_CH_CFG 0x00 /* assorted configuration */ +-#define ENET_DMA_CH_CFG_ENABLE 0x00000001 /* set to enable channel */ +-#define ENET_DMA_CH_CFG_PKT_HALT 0x00000002 /* idle after an EOP flag is detected */ +-#define ENET_DMA_CH_CFG_BURST_HALT 0x00000004 /* idle after finish current memory burst */ +-#define ENET_DMA_CH_CFG_INT_STAT 0x04 /* interrupts control and status */ +-#define ENET_DMA_CH_CFG_INT_MASK 0x08 /* interrupts mask */ +-#define ENET_DMA_CH_CFG_INT_BUFF_DONE 0x00000001 /* buffer done */ +-#define ENET_DMA_CH_CFG_INT_DONE 0x00000002 /* packet xfer complete */ +-#define ENET_DMA_CH_CFG_INT_NO_DESC 0x00000004 /* no valid descriptors */ +-#define ENET_DMA_CH_CFG_INT_RX_ERROR 0x00000008 /* rxdma detect client protocol error */ +-#define ENET_DMA_CH_CFG_MAX_BURST 0x0c /* max burst length permitted */ +-#define ENET_DMA_CH_CFG_MAX_BURST_DESCSIZE_SEL 0x00040000 /* DMA Descriptor Size Selection */ +-#define ENET_DMA_CH_CFG_SIZE 0x10 +- +-#define ENET_DMA_CH_STATE_RAM_BASE_DESC_PTR 0x00 /* descriptor ring start address */ +-#define ENET_DMA_CH_STATE_RAM_STATE_DATA 0x04 /* state/bytes done/ring offset */ +-#define ENET_DMA_CH_STATE_RAM_DESC_LEN_STATUS 0x08 /* buffer descriptor status and len */ +-#define ENET_DMA_CH_STATE_RAM_DESC_BASE_BUFPTR 0x0c /* buffer descrpitor current processing */ +-#define ENET_DMA_CH_STATE_RAM_SIZE 0x10 +- +-#define DMA_CTL_STATUS_APPEND_CRC 0x00000100 +-#define DMA_CTL_STATUS_APPEND_BRCM_TAG 0x00000200 +-#define DMA_CTL_STATUS_PRIO 0x00000C00 /* Prio for Tx */ +-#define DMA_CTL_STATUS_WRAP 0x00001000 /* */ +-#define DMA_CTL_STATUS_SOP 0x00002000 /* first buffer in packet */ +-#define DMA_CTL_STATUS_EOP 0x00004000 /* last buffer in packet */ +-#define DMA_CTL_STATUS_OWN 0x00008000 /* cleared by DMA, set by SW */ +-#define DMA_CTL_LEN_DESC_BUFLENGTH 0x0fff0000 +-#define DMA_CTL_LEN_DESC_BUFLENGTH_SHIFT 16 +-#define DMA_CTL_LEN_DESC_MULTICAST 0x40000000 +-#define DMA_CTL_LEN_DESC_USEFPM 0x80000000 +- +-#endif +--- /dev/null ++++ b/drivers/net/ethernet/broadcom/bcm4908_enet.h +@@ -0,0 +1,96 @@ ++/* SPDX-License-Identifier: GPL-2.0-only */ ++#ifndef __BCM4908_ENET_H ++#define __BCM4908_ENET_H ++ ++#define ENET_CONTROL 0x000 ++#define ENET_MIB_CTRL 0x004 ++#define ENET_MIB_CTRL_CLR_MIB 0x00000001 ++#define ENET_RX_ERR_MASK 0x008 ++#define ENET_MIB_MAX_PKT_SIZE 0x00C ++#define ENET_MIB_MAX_PKT_SIZE_VAL 0x00003fff ++#define ENET_DIAG_OUT 0x01c ++#define ENET_ENABLE_DROP_PKT 0x020 ++#define ENET_IRQ_ENABLE 0x024 ++#define ENET_IRQ_ENABLE_OVFL 0x00000001 ++#define ENET_GMAC_STATUS 0x028 ++#define ENET_GMAC_STATUS_ETH_SPEED_MASK 0x00000003 ++#define ENET_GMAC_STATUS_ETH_SPEED_10 0x00000000 ++#define ENET_GMAC_STATUS_ETH_SPEED_100 0x00000001 ++#define ENET_GMAC_STATUS_ETH_SPEED_1000 0x00000002 ++#define ENET_GMAC_STATUS_HD 0x00000004 ++#define ENET_GMAC_STATUS_AUTO_CFG_EN 0x00000008 ++#define ENET_GMAC_STATUS_LINK_UP 0x00000010 ++#define ENET_IRQ_STATUS 0x02c ++#define ENET_IRQ_STATUS_OVFL 0x00000001 ++#define ENET_OVERFLOW_COUNTER 0x030 ++#define ENET_FLUSH 0x034 ++#define ENET_FLUSH_RXFIFO_FLUSH 0x00000001 ++#define ENET_FLUSH_TXFIFO_FLUSH 0x00000002 ++#define ENET_RSV_SELECT 0x038 ++#define ENET_BP_FORCE 0x03c ++#define ENET_BP_FORCE_FORCE 0x00000001 ++#define ENET_DMA_RX_OK_TO_SEND_COUNT 0x040 ++#define ENET_DMA_RX_OK_TO_SEND_COUNT_VAL 0x0000000f ++#define ENET_TX_CRC_CTRL 0x044 ++#define ENET_MIB 0x200 ++#define ENET_UNIMAC 0x400 ++#define ENET_DMA 0x800 ++#define ENET_DMA_CONTROLLER_CFG 0x800 ++#define ENET_DMA_CTRL_CFG_MASTER_EN 0x00000001 ++#define ENET_DMA_CTRL_CFG_FLOWC_CH1_EN 0x00000002 ++#define ENET_DMA_CTRL_CFG_FLOWC_CH3_EN 0x00000004 ++#define ENET_DMA_FLOWCTL_CH1_THRESH_LO 0x804 ++#define ENET_DMA_FLOWCTL_CH1_THRESH_HI 0x808 ++#define ENET_DMA_FLOWCTL_CH1_ALLOC 0x80c ++#define ENET_DMA_FLOWCTL_CH1_ALLOC_FORCE 0x80000000 ++#define ENET_DMA_FLOWCTL_CH3_THRESH_LO 0x810 ++#define ENET_DMA_FLOWCTL_CH3_THRESH_HI 0x814 ++#define ENET_DMA_FLOWCTL_CH3_ALLOC 0x818 ++#define ENET_DMA_FLOWCTL_CH5_THRESH_LO 0x81C ++#define ENET_DMA_FLOWCTL_CH5_THRESH_HI 0x820 ++#define ENET_DMA_FLOWCTL_CH5_ALLOC 0x824 ++#define ENET_DMA_FLOWCTL_CH7_THRESH_LO 0x828 ++#define ENET_DMA_FLOWCTL_CH7_THRESH_HI 0x82C ++#define ENET_DMA_FLOWCTL_CH7_ALLOC 0x830 ++#define ENET_DMA_CTRL_CHANNEL_RESET 0x834 ++#define ENET_DMA_CTRL_CHANNEL_DEBUG 0x838 ++#define ENET_DMA_CTRL_GLOBAL_INTERRUPT_STATUS 0x840 ++#define ENET_DMA_CTRL_GLOBAL_INTERRUPT_MASK 0x844 ++#define ENET_DMA_CH0_CFG 0xa00 /* RX */ ++#define ENET_DMA_CH1_CFG 0xa10 /* TX */ ++#define ENET_DMA_CH0_STATE_RAM 0xc00 /* RX */ ++#define ENET_DMA_CH1_STATE_RAM 0xc10 /* TX */ ++ ++#define ENET_DMA_CH_CFG 0x00 /* assorted configuration */ ++#define ENET_DMA_CH_CFG_ENABLE 0x00000001 /* set to enable channel */ ++#define ENET_DMA_CH_CFG_PKT_HALT 0x00000002 /* idle after an EOP flag is detected */ ++#define ENET_DMA_CH_CFG_BURST_HALT 0x00000004 /* idle after finish current memory burst */ ++#define ENET_DMA_CH_CFG_INT_STAT 0x04 /* interrupts control and status */ ++#define ENET_DMA_CH_CFG_INT_MASK 0x08 /* interrupts mask */ ++#define ENET_DMA_CH_CFG_INT_BUFF_DONE 0x00000001 /* buffer done */ ++#define ENET_DMA_CH_CFG_INT_DONE 0x00000002 /* packet xfer complete */ ++#define ENET_DMA_CH_CFG_INT_NO_DESC 0x00000004 /* no valid descriptors */ ++#define ENET_DMA_CH_CFG_INT_RX_ERROR 0x00000008 /* rxdma detect client protocol error */ ++#define ENET_DMA_CH_CFG_MAX_BURST 0x0c /* max burst length permitted */ ++#define ENET_DMA_CH_CFG_MAX_BURST_DESCSIZE_SEL 0x00040000 /* DMA Descriptor Size Selection */ ++#define ENET_DMA_CH_CFG_SIZE 0x10 ++ ++#define ENET_DMA_CH_STATE_RAM_BASE_DESC_PTR 0x00 /* descriptor ring start address */ ++#define ENET_DMA_CH_STATE_RAM_STATE_DATA 0x04 /* state/bytes done/ring offset */ ++#define ENET_DMA_CH_STATE_RAM_DESC_LEN_STATUS 0x08 /* buffer descriptor status and len */ ++#define ENET_DMA_CH_STATE_RAM_DESC_BASE_BUFPTR 0x0c /* buffer descrpitor current processing */ ++#define ENET_DMA_CH_STATE_RAM_SIZE 0x10 ++ ++#define DMA_CTL_STATUS_APPEND_CRC 0x00000100 ++#define DMA_CTL_STATUS_APPEND_BRCM_TAG 0x00000200 ++#define DMA_CTL_STATUS_PRIO 0x00000C00 /* Prio for Tx */ ++#define DMA_CTL_STATUS_WRAP 0x00001000 /* */ ++#define DMA_CTL_STATUS_SOP 0x00002000 /* first buffer in packet */ ++#define DMA_CTL_STATUS_EOP 0x00004000 /* last buffer in packet */ ++#define DMA_CTL_STATUS_OWN 0x00008000 /* cleared by DMA, set by SW */ ++#define DMA_CTL_LEN_DESC_BUFLENGTH 0x0fff0000 ++#define DMA_CTL_LEN_DESC_BUFLENGTH_SHIFT 16 ++#define DMA_CTL_LEN_DESC_MULTICAST 0x40000000 ++#define DMA_CTL_LEN_DESC_USEFPM 0x80000000 ++ ++#endif diff --git a/target/linux/bcm4908/patches-5.10/073-v5.12-0004-net-broadcom-bcm4908_enet-drop-unneeded-memset.patch b/target/linux/bcm4908/patches-5.10/073-v5.12-0004-net-broadcom-bcm4908_enet-drop-unneeded-memset.patch new file mode 100644 index 0000000000..561f045b75 --- /dev/null +++ b/target/linux/bcm4908/patches-5.10/073-v5.12-0004-net-broadcom-bcm4908_enet-drop-unneeded-memset.patch @@ -0,0 +1,30 @@ +From af263af64683f018be9ce3c309edfa9903f5109a Mon Sep 17 00:00:00 2001 +From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl> +Date: Thu, 11 Feb 2021 13:12:35 +0100 +Subject: [PATCH] net: broadcom: bcm4908_enet: drop unneeded memset() +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +dma_alloc_coherent takes care of zeroing allocated memory + +Suggested-by: Andrew Lunn <andrew@lunn.ch> +Signed-off-by: Rafał Miłecki <rafal@milecki.pl> +Reviewed-by: Andrew Lunn <andrew@lunn.ch> +Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> +Signed-off-by: David S. Miller <davem@davemloft.net> +--- + drivers/net/ethernet/broadcom/bcm4908_enet.c | 2 -- + 1 file changed, 2 deletions(-) + +--- a/drivers/net/ethernet/broadcom/bcm4908_enet.c ++++ b/drivers/net/ethernet/broadcom/bcm4908_enet.c +@@ -163,8 +163,6 @@ static int bcm4908_dma_alloc_buf_descs(s + if (!ring->slots) + goto err_free_buf_descs; + +- memset(ring->cpu_addr, 0, size); +- + ring->read_idx = 0; + ring->write_idx = 0; + diff --git a/target/linux/bcm4908/patches-5.10/073-v5.12-0005-net-broadcom-bcm4908_enet-drop-inline-from-C-functio.patch b/target/linux/bcm4908/patches-5.10/073-v5.12-0005-net-broadcom-bcm4908_enet-drop-inline-from-C-functio.patch new file mode 100644 index 0000000000..a8c188f30d --- /dev/null +++ b/target/linux/bcm4908/patches-5.10/073-v5.12-0005-net-broadcom-bcm4908_enet-drop-inline-from-C-functio.patch @@ -0,0 +1,75 @@ +From 7b778ae4eb9cd6e1518e4e47902a104b13ae8929 Mon Sep 17 00:00:00 2001 +From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl> +Date: Thu, 11 Feb 2021 13:12:36 +0100 +Subject: [PATCH] net: broadcom: bcm4908_enet: drop "inline" from C functions +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +It seems preferred to let compiler optimize code if applicable. +While at it drop unused enet_umac_maskset(). + +Suggested-by: Andrew Lunn <andrew@lunn.ch> +Signed-off-by: Rafał Miłecki <rafal@milecki.pl> +Reviewed-by: Andrew Lunn <andrew@lunn.ch> +Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> +Signed-off-by: David S. Miller <davem@davemloft.net> +--- + drivers/net/ethernet/broadcom/bcm4908_enet.c | 19 +++++++------------ + 1 file changed, 7 insertions(+), 12 deletions(-) + +--- a/drivers/net/ethernet/broadcom/bcm4908_enet.c ++++ b/drivers/net/ethernet/broadcom/bcm4908_enet.c +@@ -75,17 +75,17 @@ struct bcm4908_enet { + * R/W ops + */ + +-static inline u32 enet_read(struct bcm4908_enet *enet, u16 offset) ++static u32 enet_read(struct bcm4908_enet *enet, u16 offset) + { + return readl(enet->base + offset); + } + +-static inline void enet_write(struct bcm4908_enet *enet, u16 offset, u32 value) ++static void enet_write(struct bcm4908_enet *enet, u16 offset, u32 value) + { + writel(value, enet->base + offset); + } + +-static inline void enet_maskset(struct bcm4908_enet *enet, u16 offset, u32 mask, u32 set) ++static void enet_maskset(struct bcm4908_enet *enet, u16 offset, u32 mask, u32 set) + { + u32 val; + +@@ -96,27 +96,22 @@ static inline void enet_maskset(struct b + enet_write(enet, offset, val); + } + +-static inline void enet_set(struct bcm4908_enet *enet, u16 offset, u32 set) ++static void enet_set(struct bcm4908_enet *enet, u16 offset, u32 set) + { + enet_maskset(enet, offset, set, set); + } + +-static inline u32 enet_umac_read(struct bcm4908_enet *enet, u16 offset) ++static u32 enet_umac_read(struct bcm4908_enet *enet, u16 offset) + { + return enet_read(enet, ENET_UNIMAC + offset); + } + +-static inline void enet_umac_write(struct bcm4908_enet *enet, u16 offset, u32 value) ++static void enet_umac_write(struct bcm4908_enet *enet, u16 offset, u32 value) + { + enet_write(enet, ENET_UNIMAC + offset, value); + } + +-static inline void enet_umac_maskset(struct bcm4908_enet *enet, u16 offset, u32 mask, u32 set) +-{ +- enet_maskset(enet, ENET_UNIMAC + offset, mask, set); +-} +- +-static inline void enet_umac_set(struct bcm4908_enet *enet, u16 offset, u32 set) ++static void enet_umac_set(struct bcm4908_enet *enet, u16 offset, u32 set) + { + enet_set(enet, ENET_UNIMAC + offset, set); + } diff --git a/target/linux/bcm4908/patches-5.10/073-v5.12-0006-net-broadcom-bcm4908_enet-fix-minor-typos.patch b/target/linux/bcm4908/patches-5.10/073-v5.12-0006-net-broadcom-bcm4908_enet-fix-minor-typos.patch new file mode 100644 index 0000000000..1aacb1c8cf --- /dev/null +++ b/target/linux/bcm4908/patches-5.10/073-v5.12-0006-net-broadcom-bcm4908_enet-fix-minor-typos.patch @@ -0,0 +1,60 @@ +From e3948811720341f99cd5cb4a8a650473400ec4f8 Mon Sep 17 00:00:00 2001 +From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl> +Date: Thu, 11 Feb 2021 13:12:37 +0100 +Subject: [PATCH] net: broadcom: bcm4908_enet: fix minor typos +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +1. Fix "ensable" typo noticed by Andrew +2. Fix chipset name in the struct net_device_ops variable + +Suggested-by: Andrew Lunn <andrew@lunn.ch> +Signed-off-by: Rafał Miłecki <rafal@milecki.pl> +Reviewed-by: Andrew Lunn <andrew@lunn.ch> +Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> +Signed-off-by: David S. Miller <davem@davemloft.net> +--- + drivers/net/ethernet/broadcom/bcm4908_enet.c | 10 +++++----- + 1 file changed, 5 insertions(+), 5 deletions(-) + +--- a/drivers/net/ethernet/broadcom/bcm4908_enet.c ++++ b/drivers/net/ethernet/broadcom/bcm4908_enet.c +@@ -328,8 +328,8 @@ static int bcm4908_enet_dma_init(struct + return 0; + } + +-static void bcm4908_enet_dma_tx_ring_ensable(struct bcm4908_enet *enet, +- struct bcm4908_enet_dma_ring *ring) ++static void bcm4908_enet_dma_tx_ring_enable(struct bcm4908_enet *enet, ++ struct bcm4908_enet_dma_ring *ring) + { + enet_write(enet, ring->cfg_block + ENET_DMA_CH_CFG, ENET_DMA_CH_CFG_ENABLE); + } +@@ -519,7 +519,7 @@ static int bcm4908_enet_start_xmit(struc + buf_desc->addr = cpu_to_le32((uint32_t)slot->dma_addr); + buf_desc->ctl = cpu_to_le32(tmp); + +- bcm4908_enet_dma_tx_ring_ensable(enet, &enet->tx_ring); ++ bcm4908_enet_dma_tx_ring_enable(enet, &enet->tx_ring); + + if (++ring->write_idx == ring->length - 1) + ring->write_idx = 0; +@@ -583,7 +583,7 @@ static int bcm4908_enet_poll(struct napi + return handled; + } + +-static const struct net_device_ops bcm96xx_netdev_ops = { ++static const struct net_device_ops bcm4908_enet_netdev_ops = { + .ndo_open = bcm4908_enet_open, + .ndo_stop = bcm4908_enet_stop, + .ndo_start_xmit = bcm4908_enet_start_xmit, +@@ -623,7 +623,7 @@ static int bcm4908_enet_probe(struct pla + + SET_NETDEV_DEV(netdev, &pdev->dev); + eth_hw_addr_random(netdev); +- netdev->netdev_ops = &bcm96xx_netdev_ops; ++ netdev->netdev_ops = &bcm4908_enet_netdev_ops; + netdev->min_mtu = ETH_ZLEN; + netdev->mtu = ENET_MTU_MAX; + netdev->max_mtu = ENET_MTU_MAX; diff --git a/target/linux/bcm4908/patches-5.10/073-v5.12-0007-net-broadcom-bcm4908_enet-fix-received-skb-length.patch b/target/linux/bcm4908/patches-5.10/073-v5.12-0007-net-broadcom-bcm4908_enet-fix-received-skb-length.patch new file mode 100644 index 0000000000..1b51979d71 --- /dev/null +++ b/target/linux/bcm4908/patches-5.10/073-v5.12-0007-net-broadcom-bcm4908_enet-fix-received-skb-length.patch @@ -0,0 +1,28 @@ +From 195e2d9febfbeef1d09701c387925e5c2f5cb038 Mon Sep 17 00:00:00 2001 +From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl> +Date: Thu, 11 Feb 2021 13:12:38 +0100 +Subject: [PATCH] net: broadcom: bcm4908_enet: fix received skb length +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +Use ETH_FCS_LEN instead of magic value and drop incorrect + 2 + +Signed-off-by: Rafał Miłecki <rafal@milecki.pl> +Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> +Signed-off-by: David S. Miller <davem@davemloft.net> +--- + drivers/net/ethernet/broadcom/bcm4908_enet.c | 2 +- + 1 file changed, 1 insertion(+), 1 deletion(-) + +--- a/drivers/net/ethernet/broadcom/bcm4908_enet.c ++++ b/drivers/net/ethernet/broadcom/bcm4908_enet.c +@@ -567,7 +567,7 @@ static int bcm4908_enet_poll(struct napi + + dma_unmap_single(dev, slot.dma_addr, slot.len, DMA_FROM_DEVICE); + +- skb_put(slot.skb, len - 4 + 2); ++ skb_put(slot.skb, len - ETH_FCS_LEN); + slot.skb->protocol = eth_type_trans(slot.skb, enet->netdev); + netif_receive_skb(slot.skb); + diff --git a/target/linux/bcm4908/patches-5.10/073-v5.12-0008-net-broadcom-bcm4908_enet-fix-endianness-in-xmit-cod.patch b/target/linux/bcm4908/patches-5.10/073-v5.12-0008-net-broadcom-bcm4908_enet-fix-endianness-in-xmit-cod.patch new file mode 100644 index 0000000000..eda0bf482e --- /dev/null +++ b/target/linux/bcm4908/patches-5.10/073-v5.12-0008-net-broadcom-bcm4908_enet-fix-endianness-in-xmit-cod.patch @@ -0,0 +1,28 @@ +From bdd70b997799099597fc0952fb0ec1bd80505bc4 Mon Sep 17 00:00:00 2001 +From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl> +Date: Thu, 11 Feb 2021 13:12:39 +0100 +Subject: [PATCH] net: broadcom: bcm4908_enet: fix endianness in xmit code +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +Use le32_to_cpu() for reading __le32 struct field filled by hw. + +Signed-off-by: Rafał Miłecki <rafal@milecki.pl> +Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> +Signed-off-by: David S. Miller <davem@davemloft.net> +--- + drivers/net/ethernet/broadcom/bcm4908_enet.c | 2 +- + 1 file changed, 1 insertion(+), 1 deletion(-) + +--- a/drivers/net/ethernet/broadcom/bcm4908_enet.c ++++ b/drivers/net/ethernet/broadcom/bcm4908_enet.c +@@ -476,7 +476,7 @@ static int bcm4908_enet_start_xmit(struc + /* Free transmitted skbs */ + while (ring->read_idx != ring->write_idx) { + buf_desc = &ring->buf_desc[ring->read_idx]; +- if (buf_desc->ctl & DMA_CTL_STATUS_OWN) ++ if (le32_to_cpu(buf_desc->ctl) & DMA_CTL_STATUS_OWN) + break; + slot = &ring->slots[ring->read_idx]; + diff --git a/target/linux/bcm4908/patches-5.10/073-v5.12-0009-net-broadcom-bcm4908_enet-set-MTU-on-open-on-request.patch b/target/linux/bcm4908/patches-5.10/073-v5.12-0009-net-broadcom-bcm4908_enet-set-MTU-on-open-on-request.patch new file mode 100644 index 0000000000..0201bfeda3 --- /dev/null +++ b/target/linux/bcm4908/patches-5.10/073-v5.12-0009-net-broadcom-bcm4908_enet-set-MTU-on-open-on-request.patch @@ -0,0 +1,119 @@ +From 14b3b46a67f78ade99eafcbf320105615e948569 Mon Sep 17 00:00:00 2001 +From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl> +Date: Fri, 12 Feb 2021 16:21:35 +0100 +Subject: [PATCH] net: broadcom: bcm4908_enet: set MTU on open & on request +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +Hardware comes up with default max frame size set to 1518. When using it +with switch it results in actual Ethernet MTU 1492: +1518 - 14 (Ethernet header) - 4 (Broadcom's tag) - 4 (802.1q) - 4 (FCS) + +Above means hardware in its default state can't handle standard Ethernet +traffic (MTU 1500). + +Define maximum possible Ethernet overhead and always set MAC max frame +length accordingly. This change fixes handling Ethernet frames of length +1506 - 1514. + +Signed-off-by: Rafał Miłecki <rafal@milecki.pl> +Signed-off-by: David S. Miller <davem@davemloft.net> +--- + drivers/net/ethernet/broadcom/bcm4908_enet.c | 31 ++++++++++++++++---- + 1 file changed, 25 insertions(+), 6 deletions(-) + +--- a/drivers/net/ethernet/broadcom/bcm4908_enet.c ++++ b/drivers/net/ethernet/broadcom/bcm4908_enet.c +@@ -5,6 +5,7 @@ + + #include <linux/delay.h> + #include <linux/etherdevice.h> ++#include <linux/if_vlan.h> + #include <linux/interrupt.h> + #include <linux/module.h> + #include <linux/of.h> +@@ -29,9 +30,10 @@ + ENET_DMA_CH_CFG_INT_BUFF_DONE) + #define ENET_DMA_MAX_BURST_LEN 8 /* in 64 bit words */ + +-#define ENET_MTU_MIN 60 +-#define ENET_MTU_MAX 1500 /* Is it possible to support 2044? */ +-#define ENET_MTU_MAX_EXTRA_SIZE 32 /* L2 */ ++#define ENET_MTU_MAX ETH_DATA_LEN /* Is it possible to support 2044? */ ++#define BRCM_MAX_TAG_LEN 6 ++#define ENET_MAX_ETH_OVERHEAD (ETH_HLEN + BRCM_MAX_TAG_LEN + VLAN_HLEN + \ ++ ETH_FCS_LEN + 4) /* 32 */ + + struct bcm4908_enet_dma_ring_bd { + __le32 ctl; +@@ -135,6 +137,11 @@ static void bcm4908_enet_intrs_ack(struc + enet_write(enet, ENET_DMA_CH_RX_CFG + ENET_DMA_CH_CFG_INT_STAT, ENET_DMA_INT_DEFAULTS); + } + ++static void bcm4908_enet_set_mtu(struct bcm4908_enet *enet, int mtu) ++{ ++ enet_umac_write(enet, UMAC_MAX_FRAME_LEN, mtu + ENET_MAX_ETH_OVERHEAD); ++} ++ + /*** + * DMA + */ +@@ -246,7 +253,7 @@ static int bcm4908_enet_dma_alloc_rx_buf + u32 tmp; + int err; + +- slot->len = ENET_MTU_MAX + ENET_MTU_MAX_EXTRA_SIZE; ++ slot->len = ENET_MTU_MAX + ENET_MAX_ETH_OVERHEAD; + + slot->skb = netdev_alloc_skb(enet->netdev, slot->len); + if (!slot->skb) +@@ -374,6 +381,8 @@ static void bcm4908_enet_gmac_init(struc + { + u32 cmd; + ++ bcm4908_enet_set_mtu(enet, enet->netdev->mtu); ++ + cmd = enet_umac_read(enet, UMAC_CMD); + enet_umac_write(enet, UMAC_CMD, cmd | CMD_SW_RESET); + enet_umac_write(enet, UMAC_CMD, cmd & ~CMD_SW_RESET); +@@ -559,7 +568,7 @@ static int bcm4908_enet_poll(struct napi + + len = (ctl & DMA_CTL_LEN_DESC_BUFLENGTH) >> DMA_CTL_LEN_DESC_BUFLENGTH_SHIFT; + +- if (len < ENET_MTU_MIN || ++ if (len < ETH_ZLEN || + (ctl & (DMA_CTL_STATUS_SOP | DMA_CTL_STATUS_EOP)) != (DMA_CTL_STATUS_SOP | DMA_CTL_STATUS_EOP)) { + enet->netdev->stats.rx_dropped++; + break; +@@ -583,11 +592,21 @@ static int bcm4908_enet_poll(struct napi + return handled; + } + ++static int bcm4908_enet_change_mtu(struct net_device *netdev, int new_mtu) ++{ ++ struct bcm4908_enet *enet = netdev_priv(netdev); ++ ++ bcm4908_enet_set_mtu(enet, new_mtu); ++ ++ return 0; ++} ++ + static const struct net_device_ops bcm4908_enet_netdev_ops = { + .ndo_open = bcm4908_enet_open, + .ndo_stop = bcm4908_enet_stop, + .ndo_start_xmit = bcm4908_enet_start_xmit, + .ndo_set_mac_address = eth_mac_addr, ++ .ndo_change_mtu = bcm4908_enet_change_mtu, + }; + + static int bcm4908_enet_probe(struct platform_device *pdev) +@@ -625,7 +644,7 @@ static int bcm4908_enet_probe(struct pla + eth_hw_addr_random(netdev); + netdev->netdev_ops = &bcm4908_enet_netdev_ops; + netdev->min_mtu = ETH_ZLEN; +- netdev->mtu = ENET_MTU_MAX; ++ netdev->mtu = ETH_DATA_LEN; + netdev->max_mtu = ENET_MTU_MAX; + netif_napi_add(netdev, &enet->napi, bcm4908_enet_poll, 64); + diff --git a/target/linux/bcm4908/patches-5.10/073-v5.12-0010-net-broadcom-bcm4908_enet-fix-RX-path-possible-mem-l.patch b/target/linux/bcm4908/patches-5.10/073-v5.12-0010-net-broadcom-bcm4908_enet-fix-RX-path-possible-mem-l.patch new file mode 100644 index 0000000000..8a24324122 --- /dev/null +++ b/target/linux/bcm4908/patches-5.10/073-v5.12-0010-net-broadcom-bcm4908_enet-fix-RX-path-possible-mem-l.patch @@ -0,0 +1,30 @@ +From 4dc7f09b8becfa35a55430a49d95acf19f996e6b Mon Sep 17 00:00:00 2001 +From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl> +Date: Wed, 24 Feb 2021 16:18:41 +0100 +Subject: [PATCH] net: broadcom: bcm4908_enet: fix RX path possible mem leak +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +After filling RX ring slot with new skb it's required to free old skb. +Immediately on error or later in the net subsystem. + +Fixes: 4feffeadbcb2 ("net: broadcom: bcm4908enet: add BCM4908 controller driver") +Signed-off-by: Rafał Miłecki <rafal@milecki.pl> +Acked-by: Florian Fainelli <f.fainelli@gmail.com> +Link: https://lore.kernel.org/r/20210224151842.2419-1-zajec5@gmail.com +Signed-off-by: Jakub Kicinski <kuba@kernel.org> +--- + drivers/net/ethernet/broadcom/bcm4908_enet.c | 1 + + 1 file changed, 1 insertion(+) + +--- a/drivers/net/ethernet/broadcom/bcm4908_enet.c ++++ b/drivers/net/ethernet/broadcom/bcm4908_enet.c +@@ -570,6 +570,7 @@ static int bcm4908_enet_poll(struct napi + + if (len < ETH_ZLEN || + (ctl & (DMA_CTL_STATUS_SOP | DMA_CTL_STATUS_EOP)) != (DMA_CTL_STATUS_SOP | DMA_CTL_STATUS_EOP)) { ++ kfree_skb(slot.skb); + enet->netdev->stats.rx_dropped++; + break; + } diff --git a/target/linux/bcm4908/patches-5.10/073-v5.12-0011-net-broadcom-bcm4908_enet-fix-NAPI-poll-returned-val.patch b/target/linux/bcm4908/patches-5.10/073-v5.12-0011-net-broadcom-bcm4908_enet-fix-NAPI-poll-returned-val.patch new file mode 100644 index 0000000000..d4cf84e4b6 --- /dev/null +++ b/target/linux/bcm4908/patches-5.10/073-v5.12-0011-net-broadcom-bcm4908_enet-fix-NAPI-poll-returned-val.patch @@ -0,0 +1,31 @@ +From 4d9274cee40b6a20dd6148c6c81c6733c2678cbc Mon Sep 17 00:00:00 2001 +From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl> +Date: Wed, 24 Feb 2021 16:18:42 +0100 +Subject: [PATCH] net: broadcom: bcm4908_enet: fix NAPI poll returned value +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +Missing increment was resulting in poll function always returning 0 +instead of amount of processed packets. + +Fixes: 4feffeadbcb2 ("net: broadcom: bcm4908enet: add BCM4908 controller driver") +Signed-off-by: Rafał Miłecki <rafal@milecki.pl> +Acked-by: Florian Fainelli <f.fainelli@gmail.com> +Link: https://lore.kernel.org/r/20210224151842.2419-2-zajec5@gmail.com +Signed-off-by: Jakub Kicinski <kuba@kernel.org> +--- + drivers/net/ethernet/broadcom/bcm4908_enet.c | 2 ++ + 1 file changed, 2 insertions(+) + +--- a/drivers/net/ethernet/broadcom/bcm4908_enet.c ++++ b/drivers/net/ethernet/broadcom/bcm4908_enet.c +@@ -583,6 +583,8 @@ static int bcm4908_enet_poll(struct napi + + enet->netdev->stats.rx_packets++; + enet->netdev->stats.rx_bytes += len; ++ ++ handled++; + } + + if (handled < weight) { diff --git a/target/linux/bcm4908/patches-5.10/073-v5.12-0012-net-broadcom-bcm4908_enet-enable-RX-after-processing.patch b/target/linux/bcm4908/patches-5.10/073-v5.12-0012-net-broadcom-bcm4908_enet-enable-RX-after-processing.patch new file mode 100644 index 0000000000..ad1bebf3ec --- /dev/null +++ b/target/linux/bcm4908/patches-5.10/073-v5.12-0012-net-broadcom-bcm4908_enet-enable-RX-after-processing.patch @@ -0,0 +1,34 @@ +From d313d16bbaea0f11a2e98f04a6c678b43c208915 Mon Sep 17 00:00:00 2001 +From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl> +Date: Fri, 26 Feb 2021 14:20:38 +0100 +Subject: [PATCH] net: broadcom: bcm4908_enet: enable RX after processing + packets +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +When receiving a lot of packets hardware may run out of free +descriptiors and stop RX ring. Enable it every time after handling +received packets. + +Fixes: 4feffeadbcb2 ("net: broadcom: bcm4908enet: add BCM4908 controller driver") +Signed-off-by: Rafał Miłecki <rafal@milecki.pl> +Acked-by: Florian Fainelli <f.fainelli@gmail.com> +Link: https://lore.kernel.org/r/20210226132038.29849-1-zajec5@gmail.com +Signed-off-by: Jakub Kicinski <kuba@kernel.org> +--- + drivers/net/ethernet/broadcom/bcm4908_enet.c | 3 +++ + 1 file changed, 3 insertions(+) + +--- a/drivers/net/ethernet/broadcom/bcm4908_enet.c ++++ b/drivers/net/ethernet/broadcom/bcm4908_enet.c +@@ -592,6 +592,9 @@ static int bcm4908_enet_poll(struct napi + bcm4908_enet_intrs_on(enet); + } + ++ /* Hardware could disable ring if it run out of descriptors */ ++ bcm4908_enet_dma_rx_ring_enable(enet, &enet->rx_ring); ++ + return handled; + } + diff --git a/target/linux/bcm4908/patches-5.10/073-v5.12-0013-net-broadcom-BCM4908_ENET-should-not-default-to-y-un.patch b/target/linux/bcm4908/patches-5.10/073-v5.12-0013-net-broadcom-BCM4908_ENET-should-not-default-to-y-un.patch new file mode 100644 index 0000000000..43e5ee01bf --- /dev/null +++ b/target/linux/bcm4908/patches-5.10/073-v5.12-0013-net-broadcom-BCM4908_ENET-should-not-default-to-y-un.patch @@ -0,0 +1,33 @@ +From a3bc483216650a7232559bf0a1debfbabff3e12c Mon Sep 17 00:00:00 2001 +From: Geert Uytterhoeven <geert+renesas@glider.be> +Date: Tue, 16 Mar 2021 15:03:41 +0100 +Subject: [PATCH] net: broadcom: BCM4908_ENET should not default to y, + unconditionally +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +Merely enabling compile-testing should not enable additional code. +To fix this, restrict the automatic enabling of BCM4908_ENET to +ARCH_BCM4908. + +Fixes: 4feffeadbcb2e5b1 ("net: broadcom: bcm4908enet: add BCM4908 controller driver") +Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> +Acked-by: Florian Fainelli <f.fainelli@gmail.com> +Acked-by: Rafał Miłecki <rafal@milecki.pl> +Signed-off-by: David S. Miller <davem@davemloft.net> +--- + drivers/net/ethernet/broadcom/Kconfig | 2 +- + 1 file changed, 1 insertion(+), 1 deletion(-) + +--- a/drivers/net/ethernet/broadcom/Kconfig ++++ b/drivers/net/ethernet/broadcom/Kconfig +@@ -54,7 +54,7 @@ config B44_PCI + config BCM4908_ENET + tristate "Broadcom BCM4908 internal mac support" + depends on ARCH_BCM4908 || COMPILE_TEST +- default y ++ default y if ARCH_BCM4908 + help + This driver supports Ethernet controller integrated into Broadcom + BCM4908 family SoCs. diff --git a/target/linux/bcm4908/patches-5.10/074-v5.13-0001-net-broadcom-bcm4908_enet-read-MAC-from-OF.patch b/target/linux/bcm4908/patches-5.10/074-v5.13-0001-net-broadcom-bcm4908_enet-read-MAC-from-OF.patch new file mode 100644 index 0000000000..c4f336e671 --- /dev/null +++ b/target/linux/bcm4908/patches-5.10/074-v5.13-0001-net-broadcom-bcm4908_enet-read-MAC-from-OF.patch @@ -0,0 +1,38 @@ +From 3559c1ea4336636c886002996d50805365d3055c Mon Sep 17 00:00:00 2001 +From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl> +Date: Wed, 10 Mar 2021 09:48:13 +0100 +Subject: [PATCH] net: broadcom: bcm4908_enet: read MAC from OF +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +BCM4908 devices have MAC address accessible using NVMEM so it's needed +to use OF helper for reading it. + +Signed-off-by: Rafał Miłecki <rafal@milecki.pl> +Signed-off-by: David S. Miller <davem@davemloft.net> +--- + drivers/net/ethernet/broadcom/bcm4908_enet.c | 8 +++++++- + 1 file changed, 7 insertions(+), 1 deletion(-) + +--- a/drivers/net/ethernet/broadcom/bcm4908_enet.c ++++ b/drivers/net/ethernet/broadcom/bcm4908_enet.c +@@ -9,6 +9,7 @@ + #include <linux/interrupt.h> + #include <linux/module.h> + #include <linux/of.h> ++#include <linux/of_net.h> + #include <linux/platform_device.h> + #include <linux/slab.h> + #include <linux/string.h> +@@ -647,7 +648,9 @@ static int bcm4908_enet_probe(struct pla + return err; + + SET_NETDEV_DEV(netdev, &pdev->dev); +- eth_hw_addr_random(netdev); ++ of_get_mac_address(dev->of_node, netdev->dev_addr); ++ if (!is_valid_ether_addr(netdev->dev_addr)) ++ eth_hw_addr_random(netdev); + netdev->netdev_ops = &bcm4908_enet_netdev_ops; + netdev->min_mtu = ETH_ZLEN; + netdev->mtu = ETH_DATA_LEN; diff --git a/target/linux/bcm4908/patches-5.10/074-v5.13-0002-dt-bindings-net-bcm4908-enet-add-optional-TX-interru.patch b/target/linux/bcm4908/patches-5.10/074-v5.13-0002-dt-bindings-net-bcm4908-enet-add-optional-TX-interru.patch new file mode 100644 index 0000000000..b61437a2de --- /dev/null +++ b/target/linux/bcm4908/patches-5.10/074-v5.13-0002-dt-bindings-net-bcm4908-enet-add-optional-TX-interru.patch @@ -0,0 +1,50 @@ +From ab4dda7a8cb7e55ea3d92fd5e249cf6f5396028c Mon Sep 17 00:00:00 2001 +From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl> +Date: Thu, 11 Mar 2021 13:35:20 +0100 +Subject: [PATCH] dt-bindings: net: bcm4908-enet: add optional TX interrupt +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +I discovered that hardware actually supports two interrupts, one per DMA +channel (RX and TX). + +Signed-off-by: Rafał Miłecki <rafal@milecki.pl> +Signed-off-by: David S. Miller <davem@davemloft.net> +--- + .../bindings/net/brcm,bcm4908-enet.yaml | 17 +++++++++++++---- + 1 file changed, 13 insertions(+), 4 deletions(-) + +--- a/Documentation/devicetree/bindings/net/brcm,bcm4908-enet.yaml ++++ b/Documentation/devicetree/bindings/net/brcm,bcm4908-enet.yaml +@@ -22,10 +22,18 @@ properties: + maxItems: 1 + + interrupts: +- description: RX interrupt ++ minItems: 1 ++ maxItems: 2 ++ items: ++ - description: RX interrupt ++ - description: TX interrupt + + interrupt-names: +- const: rx ++ minItems: 1 ++ maxItems: 2 ++ items: ++ - const: rx ++ - const: tx + + required: + - reg +@@ -43,6 +51,7 @@ examples: + compatible = "brcm,bcm4908-enet"; + reg = <0x80002000 0x1000>; + +- interrupts = <GIC_SPI 86 IRQ_TYPE_LEVEL_HIGH>; +- interrupt-names = "rx"; ++ interrupts = <GIC_SPI 86 IRQ_TYPE_LEVEL_HIGH>, ++ <GIC_SPI 87 IRQ_TYPE_LEVEL_HIGH>; ++ interrupt-names = "rx", "tx"; + }; diff --git a/target/linux/bcm4908/patches-5.10/074-v5.13-0003-net-broadcom-bcm4908_enet-support-TX-interrupt.patch b/target/linux/bcm4908/patches-5.10/074-v5.13-0003-net-broadcom-bcm4908_enet-support-TX-interrupt.patch new file mode 100644 index 0000000000..03ac4b07bf --- /dev/null +++ b/target/linux/bcm4908/patches-5.10/074-v5.13-0003-net-broadcom-bcm4908_enet-support-TX-interrupt.patch @@ -0,0 +1,300 @@ +From 12bb508bfe5a564c36864b12253db23cac83bfa1 Mon Sep 17 00:00:00 2001 +From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl> +Date: Thu, 11 Mar 2021 13:35:21 +0100 +Subject: [PATCH] net: broadcom: bcm4908_enet: support TX interrupt +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +It appears that each DMA channel has its own interrupt and both rings +can be configured (the same way) to handle interrupts. + +1. Make ring interrupts code generic (make it operate on given ring) +2. Move napi to ring (so each has its own) +3. Make IRQ handler generic (match ring against received IRQ number) +4. Add (optional) support for TX interrupt + +Signed-off-by: Rafał Miłecki <rafal@milecki.pl> +Signed-off-by: David S. Miller <davem@davemloft.net> +--- + drivers/net/ethernet/broadcom/bcm4908_enet.c | 138 ++++++++++++++----- + 1 file changed, 103 insertions(+), 35 deletions(-) + +--- a/drivers/net/ethernet/broadcom/bcm4908_enet.c ++++ b/drivers/net/ethernet/broadcom/bcm4908_enet.c +@@ -54,6 +54,7 @@ struct bcm4908_enet_dma_ring { + int length; + u16 cfg_block; + u16 st_ram_block; ++ struct napi_struct napi; + + union { + void *cpu_addr; +@@ -67,8 +68,8 @@ struct bcm4908_enet_dma_ring { + struct bcm4908_enet { + struct device *dev; + struct net_device *netdev; +- struct napi_struct napi; + void __iomem *base; ++ int irq_tx; + + struct bcm4908_enet_dma_ring tx_ring; + struct bcm4908_enet_dma_ring rx_ring; +@@ -123,24 +124,31 @@ static void enet_umac_set(struct bcm4908 + * Helpers + */ + +-static void bcm4908_enet_intrs_on(struct bcm4908_enet *enet) ++static void bcm4908_enet_set_mtu(struct bcm4908_enet *enet, int mtu) + { +- enet_write(enet, ENET_DMA_CH_RX_CFG + ENET_DMA_CH_CFG_INT_MASK, ENET_DMA_INT_DEFAULTS); ++ enet_umac_write(enet, UMAC_MAX_FRAME_LEN, mtu + ENET_MAX_ETH_OVERHEAD); + } + +-static void bcm4908_enet_intrs_off(struct bcm4908_enet *enet) ++/*** ++ * DMA ring ops ++ */ ++ ++static void bcm4908_enet_dma_ring_intrs_on(struct bcm4908_enet *enet, ++ struct bcm4908_enet_dma_ring *ring) + { +- enet_write(enet, ENET_DMA_CH_RX_CFG + ENET_DMA_CH_CFG_INT_MASK, 0); ++ enet_write(enet, ring->cfg_block + ENET_DMA_CH_CFG_INT_MASK, ENET_DMA_INT_DEFAULTS); + } + +-static void bcm4908_enet_intrs_ack(struct bcm4908_enet *enet) ++static void bcm4908_enet_dma_ring_intrs_off(struct bcm4908_enet *enet, ++ struct bcm4908_enet_dma_ring *ring) + { +- enet_write(enet, ENET_DMA_CH_RX_CFG + ENET_DMA_CH_CFG_INT_STAT, ENET_DMA_INT_DEFAULTS); ++ enet_write(enet, ring->cfg_block + ENET_DMA_CH_CFG_INT_MASK, 0); + } + +-static void bcm4908_enet_set_mtu(struct bcm4908_enet *enet, int mtu) ++static void bcm4908_enet_dma_ring_intrs_ack(struct bcm4908_enet *enet, ++ struct bcm4908_enet_dma_ring *ring) + { +- enet_umac_write(enet, UMAC_MAX_FRAME_LEN, mtu + ENET_MAX_ETH_OVERHEAD); ++ enet_write(enet, ring->cfg_block + ENET_DMA_CH_CFG_INT_STAT, ENET_DMA_INT_DEFAULTS); + } + + /*** +@@ -414,11 +422,14 @@ static void bcm4908_enet_gmac_init(struc + static irqreturn_t bcm4908_enet_irq_handler(int irq, void *dev_id) + { + struct bcm4908_enet *enet = dev_id; ++ struct bcm4908_enet_dma_ring *ring; + +- bcm4908_enet_intrs_off(enet); +- bcm4908_enet_intrs_ack(enet); ++ ring = (irq == enet->irq_tx) ? &enet->tx_ring : &enet->rx_ring; + +- napi_schedule(&enet->napi); ++ bcm4908_enet_dma_ring_intrs_off(enet, ring); ++ bcm4908_enet_dma_ring_intrs_ack(enet, ring); ++ ++ napi_schedule(&ring->napi); + + return IRQ_HANDLED; + } +@@ -426,6 +437,8 @@ static irqreturn_t bcm4908_enet_irq_hand + static int bcm4908_enet_open(struct net_device *netdev) + { + struct bcm4908_enet *enet = netdev_priv(netdev); ++ struct bcm4908_enet_dma_ring *tx_ring = &enet->tx_ring; ++ struct bcm4908_enet_dma_ring *rx_ring = &enet->rx_ring; + struct device *dev = enet->dev; + int err; + +@@ -435,6 +448,17 @@ static int bcm4908_enet_open(struct net_ + return err; + } + ++ if (enet->irq_tx > 0) { ++ err = request_irq(enet->irq_tx, bcm4908_enet_irq_handler, 0, ++ "tx", enet); ++ if (err) { ++ dev_err(dev, "Failed to request IRQ %d: %d\n", ++ enet->irq_tx, err); ++ free_irq(netdev->irq, enet); ++ return err; ++ } ++ } ++ + bcm4908_enet_gmac_init(enet); + bcm4908_enet_dma_reset(enet); + bcm4908_enet_dma_init(enet); +@@ -443,14 +467,19 @@ static int bcm4908_enet_open(struct net_ + + enet_set(enet, ENET_DMA_CONTROLLER_CFG, ENET_DMA_CTRL_CFG_MASTER_EN); + enet_maskset(enet, ENET_DMA_CONTROLLER_CFG, ENET_DMA_CTRL_CFG_FLOWC_CH1_EN, 0); +- bcm4908_enet_dma_rx_ring_enable(enet, &enet->rx_ring); + +- napi_enable(&enet->napi); ++ if (enet->irq_tx > 0) { ++ napi_enable(&tx_ring->napi); ++ bcm4908_enet_dma_ring_intrs_ack(enet, tx_ring); ++ bcm4908_enet_dma_ring_intrs_on(enet, tx_ring); ++ } ++ ++ bcm4908_enet_dma_rx_ring_enable(enet, rx_ring); ++ napi_enable(&rx_ring->napi); + netif_carrier_on(netdev); + netif_start_queue(netdev); +- +- bcm4908_enet_intrs_ack(enet); +- bcm4908_enet_intrs_on(enet); ++ bcm4908_enet_dma_ring_intrs_ack(enet, rx_ring); ++ bcm4908_enet_dma_ring_intrs_on(enet, rx_ring); + + return 0; + } +@@ -458,16 +487,20 @@ static int bcm4908_enet_open(struct net_ + static int bcm4908_enet_stop(struct net_device *netdev) + { + struct bcm4908_enet *enet = netdev_priv(netdev); ++ struct bcm4908_enet_dma_ring *tx_ring = &enet->tx_ring; ++ struct bcm4908_enet_dma_ring *rx_ring = &enet->rx_ring; + + netif_stop_queue(netdev); + netif_carrier_off(netdev); +- napi_disable(&enet->napi); ++ napi_disable(&rx_ring->napi); ++ napi_disable(&tx_ring->napi); + + bcm4908_enet_dma_rx_ring_disable(enet, &enet->rx_ring); + bcm4908_enet_dma_tx_ring_disable(enet, &enet->tx_ring); + + bcm4908_enet_dma_uninit(enet); + ++ free_irq(enet->irq_tx, enet); + free_irq(enet->netdev->irq, enet); + + return 0; +@@ -484,25 +517,19 @@ static int bcm4908_enet_start_xmit(struc + u32 tmp; + + /* Free transmitted skbs */ +- while (ring->read_idx != ring->write_idx) { +- buf_desc = &ring->buf_desc[ring->read_idx]; +- if (le32_to_cpu(buf_desc->ctl) & DMA_CTL_STATUS_OWN) +- break; +- slot = &ring->slots[ring->read_idx]; +- +- dma_unmap_single(dev, slot->dma_addr, slot->len, DMA_TO_DEVICE); +- dev_kfree_skb(slot->skb); +- if (++ring->read_idx == ring->length) +- ring->read_idx = 0; +- } ++ if (enet->irq_tx < 0 && ++ !(le32_to_cpu(ring->buf_desc[ring->read_idx].ctl) & DMA_CTL_STATUS_OWN)) ++ napi_schedule(&enet->tx_ring.napi); + + /* Don't use the last empty buf descriptor */ + if (ring->read_idx <= ring->write_idx) + free_buf_descs = ring->read_idx - ring->write_idx + ring->length; + else + free_buf_descs = ring->read_idx - ring->write_idx; +- if (free_buf_descs < 2) ++ if (free_buf_descs < 2) { ++ netif_stop_queue(netdev); + return NETDEV_TX_BUSY; ++ } + + /* Hardware removes OWN bit after sending data */ + buf_desc = &ring->buf_desc[ring->write_idx]; +@@ -539,9 +566,10 @@ static int bcm4908_enet_start_xmit(struc + return NETDEV_TX_OK; + } + +-static int bcm4908_enet_poll(struct napi_struct *napi, int weight) ++static int bcm4908_enet_poll_rx(struct napi_struct *napi, int weight) + { +- struct bcm4908_enet *enet = container_of(napi, struct bcm4908_enet, napi); ++ struct bcm4908_enet_dma_ring *rx_ring = container_of(napi, struct bcm4908_enet_dma_ring, napi); ++ struct bcm4908_enet *enet = container_of(rx_ring, struct bcm4908_enet, rx_ring); + struct device *dev = enet->dev; + int handled = 0; + +@@ -590,7 +618,7 @@ static int bcm4908_enet_poll(struct napi + + if (handled < weight) { + napi_complete_done(napi, handled); +- bcm4908_enet_intrs_on(enet); ++ bcm4908_enet_dma_ring_intrs_on(enet, rx_ring); + } + + /* Hardware could disable ring if it run out of descriptors */ +@@ -599,6 +627,42 @@ static int bcm4908_enet_poll(struct napi + return handled; + } + ++static int bcm4908_enet_poll_tx(struct napi_struct *napi, int weight) ++{ ++ struct bcm4908_enet_dma_ring *tx_ring = container_of(napi, struct bcm4908_enet_dma_ring, napi); ++ struct bcm4908_enet *enet = container_of(tx_ring, struct bcm4908_enet, tx_ring); ++ struct bcm4908_enet_dma_ring_bd *buf_desc; ++ struct bcm4908_enet_dma_ring_slot *slot; ++ struct device *dev = enet->dev; ++ unsigned int bytes = 0; ++ int handled = 0; ++ ++ while (handled < weight && tx_ring->read_idx != tx_ring->write_idx) { ++ buf_desc = &tx_ring->buf_desc[tx_ring->read_idx]; ++ if (le32_to_cpu(buf_desc->ctl) & DMA_CTL_STATUS_OWN) ++ break; ++ slot = &tx_ring->slots[tx_ring->read_idx]; ++ ++ dma_unmap_single(dev, slot->dma_addr, slot->len, DMA_TO_DEVICE); ++ dev_kfree_skb(slot->skb); ++ bytes += slot->len; ++ if (++tx_ring->read_idx == tx_ring->length) ++ tx_ring->read_idx = 0; ++ ++ handled++; ++ } ++ ++ if (handled < weight) { ++ napi_complete_done(napi, handled); ++ bcm4908_enet_dma_ring_intrs_on(enet, tx_ring); ++ } ++ ++ if (netif_queue_stopped(enet->netdev)) ++ netif_wake_queue(enet->netdev); ++ ++ return handled; ++} ++ + static int bcm4908_enet_change_mtu(struct net_device *netdev, int new_mtu) + { + struct bcm4908_enet *enet = netdev_priv(netdev); +@@ -641,6 +705,8 @@ static int bcm4908_enet_probe(struct pla + if (netdev->irq < 0) + return netdev->irq; + ++ enet->irq_tx = platform_get_irq_byname(pdev, "tx"); ++ + dma_set_coherent_mask(dev, DMA_BIT_MASK(32)); + + err = bcm4908_enet_dma_alloc(enet); +@@ -655,7 +721,8 @@ static int bcm4908_enet_probe(struct pla + netdev->min_mtu = ETH_ZLEN; + netdev->mtu = ETH_DATA_LEN; + netdev->max_mtu = ENET_MTU_MAX; +- netif_napi_add(netdev, &enet->napi, bcm4908_enet_poll, 64); ++ netif_tx_napi_add(netdev, &enet->tx_ring.napi, bcm4908_enet_poll_tx, NAPI_POLL_WEIGHT); ++ netif_napi_add(netdev, &enet->rx_ring.napi, bcm4908_enet_poll_rx, NAPI_POLL_WEIGHT); + + err = register_netdev(netdev); + if (err) { +@@ -673,7 +740,8 @@ static int bcm4908_enet_remove(struct pl + struct bcm4908_enet *enet = platform_get_drvdata(pdev); + + unregister_netdev(enet->netdev); +- netif_napi_del(&enet->napi); ++ netif_napi_del(&enet->rx_ring.napi); ++ netif_napi_del(&enet->tx_ring.napi); + bcm4908_enet_dma_free(enet); + + return 0; diff --git a/target/linux/bcm4908/patches-5.10/075-v5.13-0001-net-dsa-bcm_sf2-store-PHY-interface-mode-in-port-str.patch b/target/linux/bcm4908/patches-5.10/075-v5.13-0001-net-dsa-bcm_sf2-store-PHY-interface-mode-in-port-str.patch new file mode 100644 index 0000000000..9b3a831773 --- /dev/null +++ b/target/linux/bcm4908/patches-5.10/075-v5.13-0001-net-dsa-bcm_sf2-store-PHY-interface-mode-in-port-str.patch @@ -0,0 +1,73 @@ +From 01488a0ccd9abe15565bed50a45afcddbb0fe199 Mon Sep 17 00:00:00 2001 +From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl> +Date: Fri, 12 Mar 2021 11:41:07 +0100 +Subject: [PATCH] net: dsa: bcm_sf2: store PHY interface/mode in port structure +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +It's needed later for proper switch / crossbar setup. + +Signed-off-by: Rafał Miłecki <rafal@milecki.pl> +Acked-by: Florian Fainelli <f.fainelli@gmail.com> +Signed-off-by: David S. Miller <davem@davemloft.net> +--- + drivers/net/dsa/bcm_sf2.c | 16 ++++++++++++---- + drivers/net/dsa/bcm_sf2.h | 1 + + 2 files changed, 13 insertions(+), 4 deletions(-) + +--- a/drivers/net/dsa/bcm_sf2.c ++++ b/drivers/net/dsa/bcm_sf2.c +@@ -446,10 +446,11 @@ static void bcm_sf2_intr_disable(struct + static void bcm_sf2_identify_ports(struct bcm_sf2_priv *priv, + struct device_node *dn) + { ++ struct device *dev = priv->dev->ds->dev; ++ struct bcm_sf2_port_status *port_st; + struct device_node *port; + unsigned int port_num; + struct property *prop; +- phy_interface_t mode; + int err; + + priv->moca_port = -1; +@@ -458,19 +459,26 @@ static void bcm_sf2_identify_ports(struc + if (of_property_read_u32(port, "reg", &port_num)) + continue; + ++ if (port_num >= DSA_MAX_PORTS) { ++ dev_err(dev, "Invalid port number %d\n", port_num); ++ continue; ++ } ++ ++ port_st = &priv->port_sts[port_num]; ++ + /* Internal PHYs get assigned a specific 'phy-mode' property + * value: "internal" to help flag them before MDIO probing + * has completed, since they might be turned off at that + * time + */ +- err = of_get_phy_mode(port, &mode); ++ err = of_get_phy_mode(port, &port_st->mode); + if (err) + continue; + +- if (mode == PHY_INTERFACE_MODE_INTERNAL) ++ if (port_st->mode == PHY_INTERFACE_MODE_INTERNAL) + priv->int_phy_mask |= 1 << port_num; + +- if (mode == PHY_INTERFACE_MODE_MOCA) ++ if (port_st->mode == PHY_INTERFACE_MODE_MOCA) + priv->moca_port = port_num; + + if (of_property_read_bool(port, "brcm,use-bcm-hdr")) +--- a/drivers/net/dsa/bcm_sf2.h ++++ b/drivers/net/dsa/bcm_sf2.h +@@ -44,6 +44,7 @@ struct bcm_sf2_hw_params { + #define BCM_SF2_REGS_NUM 6 + + struct bcm_sf2_port_status { ++ phy_interface_t mode; + unsigned int link; + bool enabled; + }; diff --git a/target/linux/bcm4908/patches-5.10/075-v5.13-0002-net-dsa-bcm_sf2-setup-BCM4908-internal-crossbar.patch b/target/linux/bcm4908/patches-5.10/075-v5.13-0002-net-dsa-bcm_sf2-setup-BCM4908-internal-crossbar.patch new file mode 100644 index 0000000000..c6c0c23570 --- /dev/null +++ b/target/linux/bcm4908/patches-5.10/075-v5.13-0002-net-dsa-bcm_sf2-setup-BCM4908-internal-crossbar.patch @@ -0,0 +1,152 @@ +From a9349f08ec6c1251d41ef167d27a15cc39bc5b97 Mon Sep 17 00:00:00 2001 +From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl> +Date: Fri, 12 Mar 2021 11:41:08 +0100 +Subject: [PATCH] net: dsa: bcm_sf2: setup BCM4908 internal crossbar +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +On some SoCs (e.g. BCM4908, BCM631[345]8) SF2 has an integrated +crossbar. It allows connecting its selected external ports to internal +ports. It's used by vendors to handle custom Ethernet setups. + +BCM4908 has following 3x2 crossbar. On Asus GT-AC5300 rgmii is used for +connecting external BCM53134S switch. GPHY4 is usually used for WAN +port. More fancy devices use SerDes for 2.5 Gbps Ethernet. + + ┌──────────┐ +SerDes ─── 0 ─┤ │ + │ 3x2 ├─ 0 ─── switch port 7 + GPHY4 ─── 1 ─┤ │ + │ crossbar ├─ 1 ─── runner (accelerator) + rgmii ─── 2 ─┤ │ + └──────────┘ + +Use setup data based on DT info to configure BCM4908's switch port 7. +Right now only GPHY and rgmii variants are supported. Handling SerDes +can be implemented later. + +Signed-off-by: Rafał Miłecki <rafal@milecki.pl> +Acked-by: Florian Fainelli <f.fainelli@gmail.com> +Signed-off-by: David S. Miller <davem@davemloft.net> +--- + drivers/net/dsa/bcm_sf2.c | 45 ++++++++++++++++++++++++++++++++++ + drivers/net/dsa/bcm_sf2.h | 1 + + drivers/net/dsa/bcm_sf2_regs.h | 7 ++++++ + 3 files changed, 53 insertions(+) + +--- a/drivers/net/dsa/bcm_sf2.c ++++ b/drivers/net/dsa/bcm_sf2.c +@@ -435,6 +435,44 @@ static int bcm_sf2_sw_rst(struct bcm_sf2 + return 0; + } + ++static void bcm_sf2_crossbar_setup(struct bcm_sf2_priv *priv) ++{ ++ struct device *dev = priv->dev->ds->dev; ++ int shift; ++ u32 mask; ++ u32 reg; ++ int i; ++ ++ mask = BIT(priv->num_crossbar_int_ports) - 1; ++ ++ reg = reg_readl(priv, REG_CROSSBAR); ++ switch (priv->type) { ++ case BCM4908_DEVICE_ID: ++ shift = CROSSBAR_BCM4908_INT_P7 * priv->num_crossbar_int_ports; ++ reg &= ~(mask << shift); ++ if (0) /* FIXME */ ++ reg |= CROSSBAR_BCM4908_EXT_SERDES << shift; ++ else if (priv->int_phy_mask & BIT(7)) ++ reg |= CROSSBAR_BCM4908_EXT_GPHY4 << shift; ++ else if (phy_interface_mode_is_rgmii(priv->port_sts[7].mode)) ++ reg |= CROSSBAR_BCM4908_EXT_RGMII << shift; ++ else if (WARN(1, "Invalid port mode\n")) ++ return; ++ break; ++ default: ++ return; ++ } ++ reg_writel(priv, reg, REG_CROSSBAR); ++ ++ reg = reg_readl(priv, REG_CROSSBAR); ++ for (i = 0; i < priv->num_crossbar_int_ports; i++) { ++ shift = i * priv->num_crossbar_int_ports; ++ ++ dev_dbg(dev, "crossbar int port #%d - ext port #%d\n", i, ++ (reg >> shift) & mask); ++ } ++} ++ + static void bcm_sf2_intr_disable(struct bcm_sf2_priv *priv) + { + intrl2_0_mask_set(priv, 0xffffffff); +@@ -869,6 +907,8 @@ static int bcm_sf2_sw_resume(struct dsa_ + return ret; + } + ++ bcm_sf2_crossbar_setup(priv); ++ + ret = bcm_sf2_cfp_resume(ds); + if (ret) + return ret; +@@ -1140,6 +1180,7 @@ struct bcm_sf2_of_data { + const u16 *reg_offsets; + unsigned int core_reg_align; + unsigned int num_cfp_rules; ++ unsigned int num_crossbar_int_ports; + }; + + static const u16 bcm_sf2_4908_reg_offsets[] = { +@@ -1164,6 +1205,7 @@ static const struct bcm_sf2_of_data bcm_ + .core_reg_align = 0, + .reg_offsets = bcm_sf2_4908_reg_offsets, + .num_cfp_rules = 0, /* FIXME */ ++ .num_crossbar_int_ports = 2, + }; + + /* Register offsets for the SWITCH_REG_* block */ +@@ -1274,6 +1316,7 @@ static int bcm_sf2_sw_probe(struct platf + priv->reg_offsets = data->reg_offsets; + priv->core_reg_align = data->core_reg_align; + priv->num_cfp_rules = data->num_cfp_rules; ++ priv->num_crossbar_int_ports = data->num_crossbar_int_ports; + + priv->rcdev = devm_reset_control_get_optional_exclusive(&pdev->dev, + "switch"); +@@ -1347,6 +1390,8 @@ static int bcm_sf2_sw_probe(struct platf + goto out_clk_mdiv; + } + ++ bcm_sf2_crossbar_setup(priv); ++ + bcm_sf2_gphy_enable_set(priv->dev->ds, true); + + ret = bcm_sf2_mdio_register(ds); +--- a/drivers/net/dsa/bcm_sf2.h ++++ b/drivers/net/dsa/bcm_sf2.h +@@ -74,6 +74,7 @@ struct bcm_sf2_priv { + const u16 *reg_offsets; + unsigned int core_reg_align; + unsigned int num_cfp_rules; ++ unsigned int num_crossbar_int_ports; + + /* spinlock protecting access to the indirect registers */ + spinlock_t indir_lock; +--- a/drivers/net/dsa/bcm_sf2_regs.h ++++ b/drivers/net/dsa/bcm_sf2_regs.h +@@ -48,6 +48,13 @@ enum bcm_sf2_reg_offs { + #define PHY_PHYAD_SHIFT 8 + #define PHY_PHYAD_MASK 0x1F + ++/* Relative to REG_CROSSBAR */ ++#define CROSSBAR_BCM4908_INT_P7 0 ++#define CROSSBAR_BCM4908_INT_RUNNER 1 ++#define CROSSBAR_BCM4908_EXT_SERDES 0 ++#define CROSSBAR_BCM4908_EXT_GPHY4 1 ++#define CROSSBAR_BCM4908_EXT_RGMII 2 ++ + #define REG_RGMII_CNTRL_P(x) (REG_RGMII_0_CNTRL + (x)) + + /* Relative to REG_RGMII_CNTRL */ diff --git a/target/linux/bcm4908/patches-5.10/075-v5.13-0003-net-dsa-bcm_sf2-Fill-in-BCM4908-CFP-entries.patch b/target/linux/bcm4908/patches-5.10/075-v5.13-0003-net-dsa-bcm_sf2-Fill-in-BCM4908-CFP-entries.patch new file mode 100644 index 0000000000..58fcec27ea --- /dev/null +++ b/target/linux/bcm4908/patches-5.10/075-v5.13-0003-net-dsa-bcm_sf2-Fill-in-BCM4908-CFP-entries.patch @@ -0,0 +1,25 @@ +From f4e6d7cdbfae502788bc468295b232dec76ee57e Mon Sep 17 00:00:00 2001 +From: Florian Fainelli <f.fainelli@gmail.com> +Date: Fri, 12 Mar 2021 13:11:01 -0800 +Subject: [PATCH] net: dsa: bcm_sf2: Fill in BCM4908 CFP entries + +The BCM4908 switch has 256 CFP entrie, update that setting so CFP can be +used. + +Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> +Signed-off-by: David S. Miller <davem@davemloft.net> +--- + drivers/net/dsa/bcm_sf2.c | 2 +- + 1 file changed, 1 insertion(+), 1 deletion(-) + +--- a/drivers/net/dsa/bcm_sf2.c ++++ b/drivers/net/dsa/bcm_sf2.c +@@ -1204,7 +1204,7 @@ static const struct bcm_sf2_of_data bcm_ + .type = BCM4908_DEVICE_ID, + .core_reg_align = 0, + .reg_offsets = bcm_sf2_4908_reg_offsets, +- .num_cfp_rules = 0, /* FIXME */ ++ .num_cfp_rules = 256, + .num_crossbar_int_ports = 2, + }; + diff --git a/target/linux/bcm4908/patches-5.10/075-v5.13-0004-net-dsa-bcm_sf2-add-function-finding-RGMII-register.patch b/target/linux/bcm4908/patches-5.10/075-v5.13-0004-net-dsa-bcm_sf2-add-function-finding-RGMII-register.patch new file mode 100644 index 0000000000..52387776b5 --- /dev/null +++ b/target/linux/bcm4908/patches-5.10/075-v5.13-0004-net-dsa-bcm_sf2-add-function-finding-RGMII-register.patch @@ -0,0 +1,161 @@ +From 55cfeb396965c3906a84d09a9c487d065e37773b Mon Sep 17 00:00:00 2001 +From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl> +Date: Thu, 18 Mar 2021 09:01:42 +0100 +Subject: [PATCH 1/2] net: dsa: bcm_sf2: add function finding RGMII register +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +Simple macro like REG_RGMII_CNTRL_P() is insufficient as: +1. It doesn't validate port argument +2. It doesn't support chipsets with non-lineral RGMII regs layout + +Missing port validation could result in getting register offset from out +of array. Random memory -> random offset -> random reads/writes. It +affected e.g. BCM4908 for REG_RGMII_CNTRL_P(7). + +Fixes: a78e86ed586d ("net: dsa: bcm_sf2: Prepare for different register layouts") +Signed-off-by: Rafał Miłecki <rafal@milecki.pl> +Acked-by: Florian Fainelli <f.fainelli@gmail.com> +Signed-off-by: David S. Miller <davem@davemloft.net> +--- + drivers/net/dsa/bcm_sf2.c | 49 +++++++++++++++++++++++++++++----- + drivers/net/dsa/bcm_sf2_regs.h | 2 -- + 2 files changed, 42 insertions(+), 9 deletions(-) + +--- a/drivers/net/dsa/bcm_sf2.c ++++ b/drivers/net/dsa/bcm_sf2.c +@@ -75,6 +75,31 @@ static void bcm_sf2_recalc_clock(struct + clk_set_rate(priv->clk_mdiv, new_rate); + } + ++static u16 bcm_sf2_reg_rgmii_cntrl(struct bcm_sf2_priv *priv, int port) ++{ ++ switch (priv->type) { ++ case BCM4908_DEVICE_ID: ++ /* TODO */ ++ break; ++ default: ++ switch (port) { ++ case 0: ++ return REG_RGMII_0_CNTRL; ++ case 1: ++ return REG_RGMII_1_CNTRL; ++ case 2: ++ return REG_RGMII_2_CNTRL; ++ default: ++ break; ++ } ++ } ++ ++ WARN_ONCE(1, "Unsupported port %d\n", port); ++ ++ /* RO fallback reg */ ++ return REG_SWITCH_STATUS; ++} ++ + static void bcm_sf2_imp_setup(struct dsa_switch *ds, int port) + { + struct bcm_sf2_priv *priv = bcm_sf2_to_priv(ds); +@@ -693,6 +718,7 @@ static void bcm_sf2_sw_mac_config(struct + { + struct bcm_sf2_priv *priv = bcm_sf2_to_priv(ds); + u32 id_mode_dis = 0, port_mode; ++ u32 reg_rgmii_ctrl; + u32 reg; + + if (port == core_readl(priv, CORE_IMP0_PRT_ID)) +@@ -716,10 +742,12 @@ static void bcm_sf2_sw_mac_config(struct + return; + } + ++ reg_rgmii_ctrl = bcm_sf2_reg_rgmii_cntrl(priv, port); ++ + /* Clear id_mode_dis bit, and the existing port mode, let + * RGMII_MODE_EN bet set by mac_link_{up,down} + */ +- reg = reg_readl(priv, REG_RGMII_CNTRL_P(port)); ++ reg = reg_readl(priv, reg_rgmii_ctrl); + reg &= ~ID_MODE_DIS; + reg &= ~(PORT_MODE_MASK << PORT_MODE_SHIFT); + +@@ -727,13 +755,14 @@ static void bcm_sf2_sw_mac_config(struct + if (id_mode_dis) + reg |= ID_MODE_DIS; + +- reg_writel(priv, reg, REG_RGMII_CNTRL_P(port)); ++ reg_writel(priv, reg, reg_rgmii_ctrl); + } + + static void bcm_sf2_sw_mac_link_set(struct dsa_switch *ds, int port, + phy_interface_t interface, bool link) + { + struct bcm_sf2_priv *priv = bcm_sf2_to_priv(ds); ++ u32 reg_rgmii_ctrl; + u32 reg; + + if (!phy_interface_mode_is_rgmii(interface) && +@@ -741,13 +770,15 @@ static void bcm_sf2_sw_mac_link_set(stru + interface != PHY_INTERFACE_MODE_REVMII) + return; + ++ reg_rgmii_ctrl = bcm_sf2_reg_rgmii_cntrl(priv, port); ++ + /* If the link is down, just disable the interface to conserve power */ +- reg = reg_readl(priv, REG_RGMII_CNTRL_P(port)); ++ reg = reg_readl(priv, reg_rgmii_ctrl); + if (link) + reg |= RGMII_MODE_EN; + else + reg &= ~RGMII_MODE_EN; +- reg_writel(priv, reg, REG_RGMII_CNTRL_P(port)); ++ reg_writel(priv, reg, reg_rgmii_ctrl); + } + + static void bcm_sf2_sw_mac_link_down(struct dsa_switch *ds, int port, +@@ -781,11 +812,15 @@ static void bcm_sf2_sw_mac_link_up(struc + { + struct bcm_sf2_priv *priv = bcm_sf2_to_priv(ds); + struct ethtool_eee *p = &priv->dev->ports[port].eee; +- u32 reg, offset; + + bcm_sf2_sw_mac_link_set(ds, port, interface, true); + + if (port != core_readl(priv, CORE_IMP0_PRT_ID)) { ++ u32 reg_rgmii_ctrl; ++ u32 reg, offset; ++ ++ reg_rgmii_ctrl = bcm_sf2_reg_rgmii_cntrl(priv, port); ++ + if (priv->type == BCM4908_DEVICE_ID || + priv->type == BCM7445_DEVICE_ID) + offset = CORE_STS_OVERRIDE_GMIIP_PORT(port); +@@ -796,7 +831,7 @@ static void bcm_sf2_sw_mac_link_up(struc + interface == PHY_INTERFACE_MODE_RGMII_TXID || + interface == PHY_INTERFACE_MODE_MII || + interface == PHY_INTERFACE_MODE_REVMII) { +- reg = reg_readl(priv, REG_RGMII_CNTRL_P(port)); ++ reg = reg_readl(priv, reg_rgmii_ctrl); + reg &= ~(RX_PAUSE_EN | TX_PAUSE_EN); + + if (tx_pause) +@@ -804,7 +839,7 @@ static void bcm_sf2_sw_mac_link_up(struc + if (rx_pause) + reg |= RX_PAUSE_EN; + +- reg_writel(priv, reg, REG_RGMII_CNTRL_P(port)); ++ reg_writel(priv, reg, reg_rgmii_ctrl); + } + + reg = SW_OVERRIDE | LINK_STS; +--- a/drivers/net/dsa/bcm_sf2_regs.h ++++ b/drivers/net/dsa/bcm_sf2_regs.h +@@ -55,8 +55,6 @@ enum bcm_sf2_reg_offs { + #define CROSSBAR_BCM4908_EXT_GPHY4 1 + #define CROSSBAR_BCM4908_EXT_RGMII 2 + +-#define REG_RGMII_CNTRL_P(x) (REG_RGMII_0_CNTRL + (x)) +- + /* Relative to REG_RGMII_CNTRL */ + #define RGMII_MODE_EN (1 << 0) + #define ID_MODE_DIS (1 << 1) diff --git a/target/linux/bcm4908/patches-5.10/075-v5.13-0005-net-dsa-bcm_sf2-fix-BCM4908-RGMII-reg-s.patch b/target/linux/bcm4908/patches-5.10/075-v5.13-0005-net-dsa-bcm_sf2-fix-BCM4908-RGMII-reg-s.patch new file mode 100644 index 0000000000..ea4234761d --- /dev/null +++ b/target/linux/bcm4908/patches-5.10/075-v5.13-0005-net-dsa-bcm_sf2-fix-BCM4908-RGMII-reg-s.patch @@ -0,0 +1,56 @@ +From 6859d91549341c2ad769d482de58129f080c0f04 Mon Sep 17 00:00:00 2001 +From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl> +Date: Thu, 18 Mar 2021 09:01:43 +0100 +Subject: [PATCH 2/2] net: dsa: bcm_sf2: fix BCM4908 RGMII reg(s) +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +BCM4908 has only 1 RGMII reg for controlling port 7. + +Fixes: 73b7a6047971 ("net: dsa: bcm_sf2: support BCM4908's integrated switch") +Signed-off-by: Rafał Miłecki <rafal@milecki.pl> +Acked-by: Florian Fainelli <f.fainelli@gmail.com> +Signed-off-by: David S. Miller <davem@davemloft.net> +--- + drivers/net/dsa/bcm_sf2.c | 11 +++++++---- + drivers/net/dsa/bcm_sf2_regs.h | 1 + + 2 files changed, 8 insertions(+), 4 deletions(-) + +--- a/drivers/net/dsa/bcm_sf2.c ++++ b/drivers/net/dsa/bcm_sf2.c +@@ -79,7 +79,12 @@ static u16 bcm_sf2_reg_rgmii_cntrl(struc + { + switch (priv->type) { + case BCM4908_DEVICE_ID: +- /* TODO */ ++ switch (port) { ++ case 7: ++ return REG_RGMII_11_CNTRL; ++ default: ++ break; ++ } + break; + default: + switch (port) { +@@ -1223,9 +1228,7 @@ static const u16 bcm_sf2_4908_reg_offset + [REG_PHY_REVISION] = 0x14, + [REG_SPHY_CNTRL] = 0x24, + [REG_CROSSBAR] = 0xc8, +- [REG_RGMII_0_CNTRL] = 0xe0, +- [REG_RGMII_1_CNTRL] = 0xec, +- [REG_RGMII_2_CNTRL] = 0xf8, ++ [REG_RGMII_11_CNTRL] = 0x014c, + [REG_LED_0_CNTRL] = 0x40, + [REG_LED_1_CNTRL] = 0x4c, + [REG_LED_2_CNTRL] = 0x58, +--- a/drivers/net/dsa/bcm_sf2_regs.h ++++ b/drivers/net/dsa/bcm_sf2_regs.h +@@ -21,6 +21,7 @@ enum bcm_sf2_reg_offs { + REG_RGMII_0_CNTRL, + REG_RGMII_1_CNTRL, + REG_RGMII_2_CNTRL, ++ REG_RGMII_11_CNTRL, + REG_LED_0_CNTRL, + REG_LED_1_CNTRL, + REG_LED_2_CNTRL, diff --git a/target/linux/bcm4908/patches-5.10/080-v5.11-tty-serial-bcm63xx-lower-driver-dependencies.patch b/target/linux/bcm4908/patches-5.10/080-v5.11-tty-serial-bcm63xx-lower-driver-dependencies.patch new file mode 100644 index 0000000000..38e3d056b9 --- /dev/null +++ b/target/linux/bcm4908/patches-5.10/080-v5.11-tty-serial-bcm63xx-lower-driver-dependencies.patch @@ -0,0 +1,31 @@ +From f35a07f92616700733636c06dd6e5b6cdc807fe4 Mon Sep 17 00:00:00 2001 +From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl> +Date: Wed, 25 Nov 2020 10:06:08 +0100 +Subject: [PATCH] tty: serial: bcm63xx: lower driver dependencies +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +Hardware supported by bcm63xx is also used by BCM4908 SoCs family that +is ARM64. In future more architectures may need it as well. There is +nothing arch specific breaking compilation so just stick to requiring +COMMON_CLK. + +Signed-off-by: Rafał Miłecki <rafal@milecki.pl> +Link: https://lore.kernel.org/r/20201125090608.28442-1-zajec5@gmail.com +Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> +--- + drivers/tty/serial/Kconfig | 2 +- + 1 file changed, 1 insertion(+), 1 deletion(-) + +--- a/drivers/tty/serial/Kconfig ++++ b/drivers/tty/serial/Kconfig +@@ -1133,7 +1133,7 @@ config SERIAL_TIMBERDALE + config SERIAL_BCM63XX + tristate "Broadcom BCM63xx/BCM33xx UART support" + select SERIAL_CORE +- depends on MIPS || ARM || COMPILE_TEST ++ depends on COMMON_CLK + help + This enables the driver for the onchip UART core found on + the following chipsets: diff --git a/target/linux/bcm4908/patches-5.10/081-v5.12-reset-simple-add-BCM4908-MISC-PCIe-reset-controller-.patch b/target/linux/bcm4908/patches-5.10/081-v5.12-reset-simple-add-BCM4908-MISC-PCIe-reset-controller-.patch new file mode 100644 index 0000000000..28702c9d0e --- /dev/null +++ b/target/linux/bcm4908/patches-5.10/081-v5.12-reset-simple-add-BCM4908-MISC-PCIe-reset-controller-.patch @@ -0,0 +1,40 @@ +From def26913b66fd94e431afecf28e09c08e8c02a35 Mon Sep 17 00:00:00 2001 +From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl> +Date: Fri, 27 Nov 2020 12:14:42 +0100 +Subject: [PATCH] reset: simple: add BCM4908 MISC PCIe reset controller support +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +It's a trivial reset controller. One register with bit per PCIe core. + +Signed-off-by: Rafał Miłecki <rafal@milecki.pl> +Acked-by: Florian Fainelli <f.fainelli@gmail.com> +Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de> +--- + drivers/reset/Kconfig | 2 +- + drivers/reset/reset-simple.c | 2 ++ + 2 files changed, 3 insertions(+), 1 deletion(-) + +--- a/drivers/reset/Kconfig ++++ b/drivers/reset/Kconfig +@@ -167,7 +167,7 @@ config RESET_SCMI + + config RESET_SIMPLE + bool "Simple Reset Controller Driver" if COMPILE_TEST +- default ARCH_AGILEX || ARCH_ASPEED || ARCH_BITMAIN || ARCH_REALTEK || ARCH_STM32 || ARCH_STRATIX10 || ARCH_SUNXI || ARCH_ZX || ARC ++ default ARCH_AGILEX || ARCH_ASPEED || ARCH_BCM4908 || ARCH_BITMAIN || ARCH_REALTEK || ARCH_STM32 || ARCH_STRATIX10 || ARCH_SUNXI || ARCH_ZX || ARC + help + This enables a simple reset controller driver for reset lines that + that can be asserted and deasserted by toggling bits in a contiguous, +--- a/drivers/reset/reset-simple.c ++++ b/drivers/reset/reset-simple.c +@@ -146,6 +146,8 @@ static const struct of_device_id reset_s + { .compatible = "aspeed,ast2500-lpc-reset" }, + { .compatible = "bitmain,bm1880-reset", + .data = &reset_simple_active_low }, ++ { .compatible = "brcm,bcm4908-misc-pcie-reset", ++ .data = &reset_simple_active_low }, + { .compatible = "snps,dw-high-reset" }, + { .compatible = "snps,dw-low-reset", + .data = &reset_simple_active_low }, diff --git a/target/linux/bcm4908/patches-5.10/082-v5.12-0001-dt-bindings-power-document-Broadcom-s-PMB-binding.patch b/target/linux/bcm4908/patches-5.10/082-v5.12-0001-dt-bindings-power-document-Broadcom-s-PMB-binding.patch new file mode 100644 index 0000000000..c5c1a5dc7e --- /dev/null +++ b/target/linux/bcm4908/patches-5.10/082-v5.12-0001-dt-bindings-power-document-Broadcom-s-PMB-binding.patch @@ -0,0 +1,90 @@ +From 82853543057f78d8a331272b70bc3f1e8cb0cbf4 Mon Sep 17 00:00:00 2001 +From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl> +Date: Mon, 14 Dec 2020 19:07:42 +0100 +Subject: [PATCH] dt-bindings: power: document Broadcom's PMB binding +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +Broadcom's PMB is power controller used for disabling and enabling SoC +devices. + +Signed-off-by: Rafał Miłecki <rafal@milecki.pl> +Reviewed-by: Rob Herring <robh@kernel.org> +Acked-by: Florian Fainelli <f.fainelli@gmail.com> +Acked-by: Ulf Hansson <ulf.hansson@linaro.org> +Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> +--- + .../bindings/power/brcm,bcm-pmb.yaml | 50 +++++++++++++++++++ + include/dt-bindings/soc/bcm-pmb.h | 11 ++++ + 2 files changed, 61 insertions(+) + create mode 100644 Documentation/devicetree/bindings/power/brcm,bcm-pmb.yaml + create mode 100644 include/dt-bindings/soc/bcm-pmb.h + +--- /dev/null ++++ b/Documentation/devicetree/bindings/power/brcm,bcm-pmb.yaml +@@ -0,0 +1,50 @@ ++# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause ++%YAML 1.2 ++--- ++$id: http://devicetree.org/schemas/power/brcm,bcm-pmb.yaml# ++$schema: http://devicetree.org/meta-schemas/core.yaml# ++ ++title: Broadcom PMB (Power Management Bus) controller ++ ++description: This document describes Broadcom's PMB controller. It supports ++ powering various types of connected devices (e.g. PCIe, USB, SATA). ++ ++maintainers: ++ - Rafał Miłecki <rafal@milecki.pl> ++ ++properties: ++ compatible: ++ enum: ++ - brcm,bcm4908-pmb ++ ++ reg: ++ description: register space of one or more buses ++ maxItems: 1 ++ ++ big-endian: ++ $ref: /schemas/types.yaml#/definitions/flag ++ description: Flag to use for block working in big endian mode. ++ ++ "#power-domain-cells": ++ description: cell specifies device ID (see bcm-pmb.h) ++ const: 1 ++ ++required: ++ - reg ++ - "#power-domain-cells" ++ ++additionalProperties: false ++ ++examples: ++ - | ++ #include <dt-bindings/soc/bcm-pmb.h> ++ ++ pmb: power-controller@802800e0 { ++ compatible = "brcm,bcm4908-pmb"; ++ reg = <0x802800e0 0x40>; ++ #power-domain-cells = <1>; ++ }; ++ ++ foo { ++ power-domains = <&pmb BCM_PMB_PCIE0>; ++ }; +--- /dev/null ++++ b/include/dt-bindings/soc/bcm-pmb.h +@@ -0,0 +1,11 @@ ++/* SPDX-License-Identifier: GPL-2.0-or-later OR MIT */ ++ ++#ifndef __DT_BINDINGS_SOC_BCM_PMB_H ++#define __DT_BINDINGS_SOC_BCM_PMB_H ++ ++#define BCM_PMB_PCIE0 0x01 ++#define BCM_PMB_PCIE1 0x02 ++#define BCM_PMB_PCIE2 0x03 ++#define BCM_PMB_HOST_USB 0x04 ++ ++#endif diff --git a/target/linux/bcm4908/patches-5.10/082-v5.12-0002-soc-bcm-add-PM-driver-for-Broadcom-s-PMB.patch b/target/linux/bcm4908/patches-5.10/082-v5.12-0002-soc-bcm-add-PM-driver-for-Broadcom-s-PMB.patch new file mode 100644 index 0000000000..8cbf33f5a9 --- /dev/null +++ b/target/linux/bcm4908/patches-5.10/082-v5.12-0002-soc-bcm-add-PM-driver-for-Broadcom-s-PMB.patch @@ -0,0 +1,409 @@ +From 8bcac4011ebe0dbdd46fd55b036ee855c95702d3 Mon Sep 17 00:00:00 2001 +From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl> +Date: Mon, 14 Dec 2020 19:07:43 +0100 +Subject: [PATCH] soc: bcm: add PM driver for Broadcom's PMB +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +PMB originally comes from BCM63138 but can be also found on many other +chipsets (e.g. BCM4908). It's needed to power on and off SoC blocks like +PCIe, SATA, USB. + +Signed-off-by: Rafał Miłecki <rafal@milecki.pl> +Acked-by: Ulf Hansson <ulf.hansson@linaro.org> +Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> +--- + MAINTAINERS | 10 + + drivers/soc/bcm/Makefile | 2 +- + drivers/soc/bcm/bcm63xx/Kconfig | 9 + + drivers/soc/bcm/bcm63xx/Makefile | 1 + + drivers/soc/bcm/bcm63xx/bcm-pmb.c | 333 ++++++++++++++++++++++++++++++ + 5 files changed, 354 insertions(+), 1 deletion(-) + create mode 100644 drivers/soc/bcm/bcm63xx/bcm-pmb.c + +--- a/MAINTAINERS ++++ b/MAINTAINERS +@@ -3674,6 +3674,16 @@ L: linux-mips@vger.kernel.org + S: Maintained + F: drivers/firmware/broadcom/* + ++BROADCOM PMB (POWER MANAGEMENT BUS) DRIVER ++M: Rafał Miłecki <rafal@milecki.pl> ++M: Florian Fainelli <f.fainelli@gmail.com> ++M: bcm-kernel-feedback-list@broadcom.com ++L: linux-pm@vger.kernel.org ++S: Maintained ++T: git git://github.com/broadcom/stblinux.git ++F: drivers/soc/bcm/bcm-pmb.c ++F: include/dt-bindings/soc/bcm-pmb.h ++ + BROADCOM SPECIFIC AMBA DRIVER (BCMA) + M: Rafał Miłecki <zajec5@gmail.com> + L: linux-wireless@vger.kernel.org +--- a/drivers/soc/bcm/Makefile ++++ b/drivers/soc/bcm/Makefile +@@ -1,5 +1,5 @@ + # SPDX-License-Identifier: GPL-2.0-only + obj-$(CONFIG_BCM2835_POWER) += bcm2835-power.o + obj-$(CONFIG_RASPBERRYPI_POWER) += raspberrypi-power.o +-obj-$(CONFIG_SOC_BCM63XX) += bcm63xx/ ++obj-y += bcm63xx/ + obj-$(CONFIG_SOC_BRCMSTB) += brcmstb/ +--- a/drivers/soc/bcm/bcm63xx/Kconfig ++++ b/drivers/soc/bcm/bcm63xx/Kconfig +@@ -10,3 +10,12 @@ config BCM63XX_POWER + BCM6318, BCM6328, BCM6362 and BCM63268 SoCs. + + endif # SOC_BCM63XX ++ ++config BCM_PMB ++ bool "Broadcom PMB (Power Management Bus) driver" ++ depends on ARCH_BCM4908 || (COMPILE_TEST && OF) ++ default ARCH_BCM4908 ++ select PM_GENERIC_DOMAINS if PM ++ help ++ This enables support for the Broadcom's PMB (Power Management Bus) that ++ is used for disabling and enabling SoC devices. +--- a/drivers/soc/bcm/bcm63xx/Makefile ++++ b/drivers/soc/bcm/bcm63xx/Makefile +@@ -1,2 +1,3 @@ + # SPDX-License-Identifier: GPL-2.0-only + obj-$(CONFIG_BCM63XX_POWER) += bcm63xx-power.o ++obj-$(CONFIG_BCM_PMB) += bcm-pmb.o +--- /dev/null ++++ b/drivers/soc/bcm/bcm63xx/bcm-pmb.c +@@ -0,0 +1,333 @@ ++// SPDX-License-Identifier: GPL-2.0-or-later ++/* ++ * Copyright (c) 2013 Broadcom ++ * Copyright (C) 2020 Rafał Miłecki <rafal@milecki.pl> ++ */ ++ ++#include <dt-bindings/soc/bcm-pmb.h> ++#include <linux/io.h> ++#include <linux/module.h> ++#include <linux/of.h> ++#include <linux/of_device.h> ++#include <linux/platform_device.h> ++#include <linux/pm_domain.h> ++#include <linux/reset/bcm63xx_pmb.h> ++ ++#define BPCM_ID_REG 0x00 ++#define BPCM_CAPABILITIES 0x04 ++#define BPCM_CAP_NUM_ZONES 0x000000ff ++#define BPCM_CAP_SR_REG_BITS 0x0000ff00 ++#define BPCM_CAP_PLLTYPE 0x00030000 ++#define BPCM_CAP_UBUS 0x00080000 ++#define BPCM_CONTROL 0x08 ++#define BPCM_STATUS 0x0c ++#define BPCM_ROSC_CONTROL 0x10 ++#define BPCM_ROSC_THRESH_H 0x14 ++#define BPCM_ROSC_THRESHOLD_BCM6838 0x14 ++#define BPCM_ROSC_THRESH_S 0x18 ++#define BPCM_ROSC_COUNT_BCM6838 0x18 ++#define BPCM_ROSC_COUNT 0x1c ++#define BPCM_PWD_CONTROL_BCM6838 0x1c ++#define BPCM_PWD_CONTROL 0x20 ++#define BPCM_SR_CONTROL_BCM6838 0x20 ++#define BPCM_PWD_ACCUM_CONTROL 0x24 ++#define BPCM_SR_CONTROL 0x28 ++#define BPCM_GLOBAL_CONTROL 0x2c ++#define BPCM_MISC_CONTROL 0x30 ++#define BPCM_MISC_CONTROL2 0x34 ++#define BPCM_SGPHY_CNTL 0x38 ++#define BPCM_SGPHY_STATUS 0x3c ++#define BPCM_ZONE0 0x40 ++#define BPCM_ZONE_CONTROL 0x00 ++#define BPCM_ZONE_CONTROL_MANUAL_CLK_EN 0x00000001 ++#define BPCM_ZONE_CONTROL_MANUAL_RESET_CTL 0x00000002 ++#define BPCM_ZONE_CONTROL_FREQ_SCALE_USED 0x00000004 /* R/O */ ++#define BPCM_ZONE_CONTROL_DPG_CAPABLE 0x00000008 /* R/O */ ++#define BPCM_ZONE_CONTROL_MANUAL_MEM_PWR 0x00000030 ++#define BPCM_ZONE_CONTROL_MANUAL_ISO_CTL 0x00000040 ++#define BPCM_ZONE_CONTROL_MANUAL_CTL 0x00000080 ++#define BPCM_ZONE_CONTROL_DPG_CTL_EN 0x00000100 ++#define BPCM_ZONE_CONTROL_PWR_DN_REQ 0x00000200 ++#define BPCM_ZONE_CONTROL_PWR_UP_REQ 0x00000400 ++#define BPCM_ZONE_CONTROL_MEM_PWR_CTL_EN 0x00000800 ++#define BPCM_ZONE_CONTROL_BLK_RESET_ASSERT 0x00001000 ++#define BPCM_ZONE_CONTROL_MEM_STBY 0x00002000 ++#define BPCM_ZONE_CONTROL_RESERVED 0x0007c000 ++#define BPCM_ZONE_CONTROL_PWR_CNTL_STATE 0x00f80000 ++#define BPCM_ZONE_CONTROL_FREQ_SCALAR_DYN_SEL 0x01000000 /* R/O */ ++#define BPCM_ZONE_CONTROL_PWR_OFF_STATE 0x02000000 /* R/O */ ++#define BPCM_ZONE_CONTROL_PWR_ON_STATE 0x04000000 /* R/O */ ++#define BPCM_ZONE_CONTROL_PWR_GOOD 0x08000000 /* R/O */ ++#define BPCM_ZONE_CONTROL_DPG_PWR_STATE 0x10000000 /* R/O */ ++#define BPCM_ZONE_CONTROL_MEM_PWR_STATE 0x20000000 /* R/O */ ++#define BPCM_ZONE_CONTROL_ISO_STATE 0x40000000 /* R/O */ ++#define BPCM_ZONE_CONTROL_RESET_STATE 0x80000000 /* R/O */ ++#define BPCM_ZONE_CONFIG1 0x04 ++#define BPCM_ZONE_CONFIG2 0x08 ++#define BPCM_ZONE_FREQ_SCALAR_CONTROL 0x0c ++#define BPCM_ZONE_SIZE 0x10 ++ ++struct bcm_pmb { ++ struct device *dev; ++ void __iomem *base; ++ spinlock_t lock; ++ bool little_endian; ++ struct genpd_onecell_data genpd_onecell_data; ++}; ++ ++struct bcm_pmb_pd_data { ++ const char * const name; ++ int id; ++ u8 bus; ++ u8 device; ++}; ++ ++struct bcm_pmb_pm_domain { ++ struct bcm_pmb *pmb; ++ const struct bcm_pmb_pd_data *data; ++ struct generic_pm_domain genpd; ++}; ++ ++static int bcm_pmb_bpcm_read(struct bcm_pmb *pmb, int bus, u8 device, ++ int offset, u32 *val) ++{ ++ void __iomem *base = pmb->base + bus * 0x20; ++ unsigned long flags; ++ int err; ++ ++ spin_lock_irqsave(&pmb->lock, flags); ++ err = bpcm_rd(base, device, offset, val); ++ spin_unlock_irqrestore(&pmb->lock, flags); ++ ++ if (!err) ++ *val = pmb->little_endian ? le32_to_cpu(*val) : be32_to_cpu(*val); ++ ++ return err; ++} ++ ++static int bcm_pmb_bpcm_write(struct bcm_pmb *pmb, int bus, u8 device, ++ int offset, u32 val) ++{ ++ void __iomem *base = pmb->base + bus * 0x20; ++ unsigned long flags; ++ int err; ++ ++ val = pmb->little_endian ? cpu_to_le32(val) : cpu_to_be32(val); ++ ++ spin_lock_irqsave(&pmb->lock, flags); ++ err = bpcm_wr(base, device, offset, val); ++ spin_unlock_irqrestore(&pmb->lock, flags); ++ ++ return err; ++} ++ ++static int bcm_pmb_power_off_zone(struct bcm_pmb *pmb, int bus, u8 device, ++ int zone) ++{ ++ int offset; ++ u32 val; ++ int err; ++ ++ offset = BPCM_ZONE0 + zone * BPCM_ZONE_SIZE + BPCM_ZONE_CONTROL; ++ ++ err = bcm_pmb_bpcm_read(pmb, bus, device, offset, &val); ++ if (err) ++ return err; ++ ++ val |= BPCM_ZONE_CONTROL_PWR_DN_REQ; ++ val &= ~BPCM_ZONE_CONTROL_PWR_UP_REQ; ++ ++ err = bcm_pmb_bpcm_write(pmb, bus, device, offset, val); ++ ++ return err; ++} ++ ++static int bcm_pmb_power_on_zone(struct bcm_pmb *pmb, int bus, u8 device, ++ int zone) ++{ ++ int offset; ++ u32 val; ++ int err; ++ ++ offset = BPCM_ZONE0 + zone * BPCM_ZONE_SIZE + BPCM_ZONE_CONTROL; ++ ++ err = bcm_pmb_bpcm_read(pmb, bus, device, offset, &val); ++ if (err) ++ return err; ++ ++ if (!(val & BPCM_ZONE_CONTROL_PWR_ON_STATE)) { ++ val &= ~BPCM_ZONE_CONTROL_PWR_DN_REQ; ++ val |= BPCM_ZONE_CONTROL_DPG_CTL_EN; ++ val |= BPCM_ZONE_CONTROL_PWR_UP_REQ; ++ val |= BPCM_ZONE_CONTROL_MEM_PWR_CTL_EN; ++ val |= BPCM_ZONE_CONTROL_BLK_RESET_ASSERT; ++ ++ err = bcm_pmb_bpcm_write(pmb, bus, device, offset, val); ++ } ++ ++ return err; ++} ++ ++static int bcm_pmb_power_off_device(struct bcm_pmb *pmb, int bus, u8 device) ++{ ++ int offset; ++ u32 val; ++ int err; ++ ++ /* Entire device can be powered off by powering off the 0th zone */ ++ offset = BPCM_ZONE0 + BPCM_ZONE_CONTROL; ++ ++ err = bcm_pmb_bpcm_read(pmb, bus, device, offset, &val); ++ if (err) ++ return err; ++ ++ if (!(val & BPCM_ZONE_CONTROL_PWR_OFF_STATE)) { ++ val = BPCM_ZONE_CONTROL_PWR_DN_REQ; ++ ++ err = bcm_pmb_bpcm_write(pmb, bus, device, offset, val); ++ } ++ ++ return err; ++} ++ ++static int bcm_pmb_power_on_device(struct bcm_pmb *pmb, int bus, u8 device) ++{ ++ u32 val; ++ int err; ++ int i; ++ ++ err = bcm_pmb_bpcm_read(pmb, bus, device, BPCM_CAPABILITIES, &val); ++ if (err) ++ return err; ++ ++ for (i = 0; i < (val & BPCM_CAP_NUM_ZONES); i++) { ++ err = bcm_pmb_power_on_zone(pmb, bus, device, i); ++ if (err) ++ return err; ++ } ++ ++ return err; ++} ++ ++static int bcm_pmb_power_on(struct generic_pm_domain *genpd) ++{ ++ struct bcm_pmb_pm_domain *pd = container_of(genpd, struct bcm_pmb_pm_domain, genpd); ++ const struct bcm_pmb_pd_data *data = pd->data; ++ struct bcm_pmb *pmb = pd->pmb; ++ ++ switch (data->id) { ++ case BCM_PMB_PCIE0: ++ case BCM_PMB_PCIE1: ++ case BCM_PMB_PCIE2: ++ return bcm_pmb_power_on_zone(pmb, data->bus, data->device, 0); ++ case BCM_PMB_HOST_USB: ++ return bcm_pmb_power_on_device(pmb, data->bus, data->device); ++ default: ++ dev_err(pmb->dev, "unsupported device id: %d\n", data->id); ++ return -EINVAL; ++ } ++} ++ ++static int bcm_pmb_power_off(struct generic_pm_domain *genpd) ++{ ++ struct bcm_pmb_pm_domain *pd = container_of(genpd, struct bcm_pmb_pm_domain, genpd); ++ const struct bcm_pmb_pd_data *data = pd->data; ++ struct bcm_pmb *pmb = pd->pmb; ++ ++ switch (data->id) { ++ case BCM_PMB_PCIE0: ++ case BCM_PMB_PCIE1: ++ case BCM_PMB_PCIE2: ++ return bcm_pmb_power_off_zone(pmb, data->bus, data->device, 0); ++ case BCM_PMB_HOST_USB: ++ return bcm_pmb_power_off_device(pmb, data->bus, data->device); ++ default: ++ dev_err(pmb->dev, "unsupported device id: %d\n", data->id); ++ return -EINVAL; ++ } ++} ++ ++static int bcm_pmb_probe(struct platform_device *pdev) ++{ ++ struct device *dev = &pdev->dev; ++ const struct bcm_pmb_pd_data *table; ++ const struct bcm_pmb_pd_data *e; ++ struct resource *res; ++ struct bcm_pmb *pmb; ++ int max_id; ++ int err; ++ ++ pmb = devm_kzalloc(dev, sizeof(*pmb), GFP_KERNEL); ++ if (!pmb) ++ return -ENOMEM; ++ ++ pmb->dev = dev; ++ ++ res = platform_get_resource(pdev, IORESOURCE_MEM, 0); ++ pmb->base = devm_ioremap_resource(&pdev->dev, res); ++ if (IS_ERR(pmb->base)) ++ return PTR_ERR(pmb->base); ++ ++ spin_lock_init(&pmb->lock); ++ ++ pmb->little_endian = !of_device_is_big_endian(dev->of_node); ++ ++ table = of_device_get_match_data(dev); ++ if (!table) ++ return -EINVAL; ++ ++ max_id = 0; ++ for (e = table; e->name; e++) ++ max_id = max(max_id, e->id); ++ ++ pmb->genpd_onecell_data.num_domains = max_id + 1; ++ pmb->genpd_onecell_data.domains = ++ devm_kcalloc(dev, pmb->genpd_onecell_data.num_domains, ++ sizeof(struct generic_pm_domain *), GFP_KERNEL); ++ if (!pmb->genpd_onecell_data.domains) ++ return -ENOMEM; ++ ++ for (e = table; e->name; e++) { ++ struct bcm_pmb_pm_domain *pd = devm_kzalloc(dev, sizeof(*pd), GFP_KERNEL); ++ ++ pd->pmb = pmb; ++ pd->data = e; ++ pd->genpd.name = e->name; ++ pd->genpd.power_on = bcm_pmb_power_on; ++ pd->genpd.power_off = bcm_pmb_power_off; ++ ++ pm_genpd_init(&pd->genpd, NULL, true); ++ pmb->genpd_onecell_data.domains[e->id] = &pd->genpd; ++ } ++ ++ err = of_genpd_add_provider_onecell(dev->of_node, &pmb->genpd_onecell_data); ++ if (err) { ++ dev_err(dev, "failed to add genpd provider: %d\n", err); ++ return err; ++ } ++ ++ return 0; ++} ++ ++static const struct bcm_pmb_pd_data bcm_pmb_bcm4908_data[] = { ++ { .name = "pcie2", .id = BCM_PMB_PCIE2, .bus = 0, .device = 2, }, ++ { .name = "pcie0", .id = BCM_PMB_PCIE0, .bus = 1, .device = 14, }, ++ { .name = "pcie1", .id = BCM_PMB_PCIE1, .bus = 1, .device = 15, }, ++ { .name = "usb", .id = BCM_PMB_HOST_USB, .bus = 1, .device = 17, }, ++ { }, ++}; ++ ++static const struct of_device_id bcm_pmb_of_match[] = { ++ { .compatible = "brcm,bcm4908-pmb", .data = &bcm_pmb_bcm4908_data, }, ++ { }, ++}; ++ ++static struct platform_driver bcm_pmb_driver = { ++ .driver = { ++ .name = "bcm-pmb", ++ .of_match_table = bcm_pmb_of_match, ++ }, ++ .probe = bcm_pmb_probe, ++}; ++ ++builtin_platform_driver(bcm_pmb_driver); diff --git a/target/linux/bcm4908/patches-5.10/082-v5.12-0003-soc-bcm-brcmstb-add-stubs-for-getting-platform-IDs.patch b/target/linux/bcm4908/patches-5.10/082-v5.12-0003-soc-bcm-brcmstb-add-stubs-for-getting-platform-IDs.patch new file mode 100644 index 0000000000..aab65925b4 --- /dev/null +++ b/target/linux/bcm4908/patches-5.10/082-v5.12-0003-soc-bcm-brcmstb-add-stubs-for-getting-platform-IDs.patch @@ -0,0 +1,63 @@ +From 149ae80b1d50e7db5ac7df1cdf0820017b70e716 Mon Sep 17 00:00:00 2001 +From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl> +Date: Thu, 14 Jan 2021 11:53:18 +0100 +Subject: [PATCH] soc: bcm: brcmstb: add stubs for getting platform IDs +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +Some brcmstb drivers may be shared with other SoC families. E.g. the +same USB PHY block is shared by brcmstb and BCM4908. + +To avoid building brcmstb common code on non-brcmstb platforms we need +stubs for: +1. brcmstb_get_family_id() +2. brcmstb_get_product_id() +(to avoid "undefined reference to" errors). + +With this change PHY_BRCM_USB will not have to unconditionally select +SOC_BRCMSTB anymore. + +Signed-off-by: Rafał Miłecki <rafal@milecki.pl> +Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> +--- + include/linux/soc/brcmstb/brcmstb.h | 16 ++++++++++++++++ + 1 file changed, 16 insertions(+) + +--- a/include/linux/soc/brcmstb/brcmstb.h ++++ b/include/linux/soc/brcmstb/brcmstb.h +@@ -2,6 +2,8 @@ + #ifndef __BRCMSTB_SOC_H + #define __BRCMSTB_SOC_H + ++#include <linux/kconfig.h> ++ + static inline u32 BRCM_ID(u32 reg) + { + return reg >> 28 ? reg >> 16 : reg >> 8; +@@ -12,6 +14,8 @@ static inline u32 BRCM_REV(u32 reg) + return reg & 0xff; + } + ++#if IS_ENABLED(CONFIG_SOC_BRCMSTB) ++ + /* + * Helper functions for getting family or product id from the + * SoC driver. +@@ -19,4 +23,16 @@ static inline u32 BRCM_REV(u32 reg) + u32 brcmstb_get_family_id(void); + u32 brcmstb_get_product_id(void); + ++#else ++static inline u32 brcmstb_get_family_id(void) ++{ ++ return 0; ++} ++ ++static inline u32 brcmstb_get_product_id(void) ++{ ++ return 0; ++} ++#endif ++ + #endif /* __BRCMSTB_SOC_H */ diff --git a/target/linux/bcm4908/patches-5.10/086-v5.12-0001-phy-phy-brcm-usb-improve-getting-OF-matching-data.patch b/target/linux/bcm4908/patches-5.10/086-v5.12-0001-phy-phy-brcm-usb-improve-getting-OF-matching-data.patch new file mode 100644 index 0000000000..cc71373165 --- /dev/null +++ b/target/linux/bcm4908/patches-5.10/086-v5.12-0001-phy-phy-brcm-usb-improve-getting-OF-matching-data.patch @@ -0,0 +1,49 @@ +From d14f4cce9340a6586512a0eb6bc680dedeaaef14 Mon Sep 17 00:00:00 2001 +From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl> +Date: Wed, 16 Dec 2020 15:33:04 +0100 +Subject: [PATCH] phy: phy-brcm-usb: improve getting OF matching data +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +1. Use of_device_get_match_data() helper to simplify the code +2. Check for NULL as a good practice + +Signed-off-by: Rafał Miłecki <rafal@milecki.pl> +Acked-by: Florian Fainelli <f.fainelli@gmail.com> +Link: https://lore.kernel.org/r/20201216143305.12179-1-zajec5@gmail.com +Signed-off-by: Vinod Koul <vkoul@kernel.org> +--- + drivers/phy/broadcom/phy-brcm-usb.c | 7 ++++--- + 1 file changed, 4 insertions(+), 3 deletions(-) + +--- a/drivers/phy/broadcom/phy-brcm-usb.c ++++ b/drivers/phy/broadcom/phy-brcm-usb.c +@@ -11,6 +11,7 @@ + #include <linux/io.h> + #include <linux/module.h> + #include <linux/of.h> ++#include <linux/of_device.h> + #include <linux/phy/phy.h> + #include <linux/platform_device.h> + #include <linux/interrupt.h> +@@ -427,7 +428,6 @@ static int brcm_usb_phy_probe(struct pla + struct device_node *dn = pdev->dev.of_node; + int err; + const char *mode; +- const struct of_device_id *match; + void (*dvr_init)(struct brcm_usb_init_params *params); + const struct match_chip_info *info; + struct regmap *rmap; +@@ -441,8 +441,9 @@ static int brcm_usb_phy_probe(struct pla + priv->ini.family_id = brcmstb_get_family_id(); + priv->ini.product_id = brcmstb_get_product_id(); + +- match = of_match_node(brcm_usb_dt_ids, dev->of_node); +- info = match->data; ++ info = of_device_get_match_data(&pdev->dev); ++ if (!info) ++ return -ENOENT; + dvr_init = info->init_func; + (*dvr_init)(&priv->ini); + diff --git a/target/linux/bcm4908/patches-5.10/086-v5.12-0002-phy-phy-brcm-usb-specify-init-function-format-at-str.patch b/target/linux/bcm4908/patches-5.10/086-v5.12-0002-phy-phy-brcm-usb-specify-init-function-format-at-str.patch new file mode 100644 index 0000000000..bdc932732c --- /dev/null +++ b/target/linux/bcm4908/patches-5.10/086-v5.12-0002-phy-phy-brcm-usb-specify-init-function-format-at-str.patch @@ -0,0 +1,50 @@ +From 915f1d230e5292bc2156a9997bcb19d9e632f10b Mon Sep 17 00:00:00 2001 +From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl> +Date: Wed, 16 Dec 2020 15:33:05 +0100 +Subject: [PATCH] phy: phy-brcm-usb: specify init function format at struct + level +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +This is slightly cleaner solution that assures noone assings a wrong +function to the pointer. + +Signed-off-by: Rafał Miłecki <rafal@milecki.pl> +Acked-by: Florian Fainelli <f.fainelli@gmail.com> +Link: https://lore.kernel.org/r/20201216143305.12179-2-zajec5@gmail.com +Signed-off-by: Vinod Koul <vkoul@kernel.org> +--- + drivers/phy/broadcom/phy-brcm-usb.c | 7 +++---- + 1 file changed, 3 insertions(+), 4 deletions(-) + +--- a/drivers/phy/broadcom/phy-brcm-usb.c ++++ b/drivers/phy/broadcom/phy-brcm-usb.c +@@ -35,7 +35,7 @@ struct value_to_name_map { + }; + + struct match_chip_info { +- void *init_func; ++ void (*init_func)(struct brcm_usb_init_params *params); + u8 required_regs[BRCM_REGS_MAX + 1]; + u8 optional_reg; + }; +@@ -428,7 +428,6 @@ static int brcm_usb_phy_probe(struct pla + struct device_node *dn = pdev->dev.of_node; + int err; + const char *mode; +- void (*dvr_init)(struct brcm_usb_init_params *params); + const struct match_chip_info *info; + struct regmap *rmap; + int x; +@@ -444,8 +443,8 @@ static int brcm_usb_phy_probe(struct pla + info = of_device_get_match_data(&pdev->dev); + if (!info) + return -ENOENT; +- dvr_init = info->init_func; +- (*dvr_init)(&priv->ini); ++ ++ info->init_func(&priv->ini); + + dev_dbg(dev, "Best mapping table is for %s\n", + priv->ini.family_name); diff --git a/target/linux/bcm4908/patches-5.10/086-v5.12-0003-dt-bindings-phy-brcm-brcmstb-usb-phy-convert-to-the-.patch b/target/linux/bcm4908/patches-5.10/086-v5.12-0003-dt-bindings-phy-brcm-brcmstb-usb-phy-convert-to-the-.patch new file mode 100644 index 0000000000..1edd63ea5d --- /dev/null +++ b/target/linux/bcm4908/patches-5.10/086-v5.12-0003-dt-bindings-phy-brcm-brcmstb-usb-phy-convert-to-the-.patch @@ -0,0 +1,315 @@ +From b39069a482ade0c5e18c407c3218ba1aeed371b6 Mon Sep 17 00:00:00 2001 +From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl> +Date: Wed, 6 Jan 2021 21:58:36 +0100 +Subject: [PATCH] dt-bindings: phy: brcm, brcmstb-usb-phy: convert to the + json-schema +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +Changes that require mentioning: +1. interrupt-names + Name "wakeup" was changed to the "wake". It matches example and what + Linux driver looks for in the first place +2. brcm,ipp and brcm,ioc + Both were described as booleans with 0 / 1 values. In examples they + were integers and Linux checks for int as well. Both got uint32. +3. Added minimal description + +Signed-off-by: Rafał Miłecki <rafal@milecki.pl> +Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> +Reviewed-by: Rob Herring <robh@kernel.org> +Link: https://lore.kernel.org/r/20210106205838.10964-1-zajec5@gmail.com +Signed-off-by: Vinod Koul <vkoul@kernel.org> +--- + .../bindings/phy/brcm,brcmstb-usb-phy.txt | 86 -------- + .../bindings/phy/brcm,brcmstb-usb-phy.yaml | 193 ++++++++++++++++++ + 2 files changed, 193 insertions(+), 86 deletions(-) + delete mode 100644 Documentation/devicetree/bindings/phy/brcm,brcmstb-usb-phy.txt + create mode 100644 Documentation/devicetree/bindings/phy/brcm,brcmstb-usb-phy.yaml + +--- a/Documentation/devicetree/bindings/phy/brcm,brcmstb-usb-phy.txt ++++ /dev/null +@@ -1,86 +0,0 @@ +-Broadcom STB USB PHY +- +-Required properties: +-- compatible: should be one of +- "brcm,brcmstb-usb-phy" +- "brcm,bcm7216-usb-phy" +- "brcm,bcm7211-usb-phy" +- +-- reg and reg-names properties requirements are specific to the +- compatible string. +- "brcm,brcmstb-usb-phy": +- - reg: 1 or 2 offset and length pairs. One for the base CTRL registers +- and an optional pair for systems with USB 3.x support +- - reg-names: not specified +- "brcm,bcm7216-usb-phy": +- - reg: 3 offset and length pairs for CTRL, XHCI_EC and XHCI_GBL +- registers +- - reg-names: "ctrl", "xhci_ec", "xhci_gbl" +- "brcm,bcm7211-usb-phy": +- - reg: 5 offset and length pairs for CTRL, XHCI_EC, XHCI_GBL, +- USB_PHY and USB_MDIO registers and an optional pair +- for the BDC registers +- - reg-names: "ctrl", "xhci_ec", "xhci_gbl", "usb_phy", "usb_mdio", "bdc_ec" +- +-- #phy-cells: Shall be 1 as it expects one argument for setting +- the type of the PHY. Possible values are: +- - PHY_TYPE_USB2 for USB1.1/2.0 PHY +- - PHY_TYPE_USB3 for USB3.x PHY +- +-Optional Properties: +-- clocks : clock phandles. +-- clock-names: String, clock name. +-- interrupts: wakeup interrupt +-- interrupt-names: "wakeup" +-- brcm,ipp: Boolean, Invert Port Power. +- Possible values are: 0 (Don't invert), 1 (Invert) +-- brcm,ioc: Boolean, Invert Over Current detection. +- Possible values are: 0 (Don't invert), 1 (Invert) +-- dr_mode: String, PHY Device mode. +- Possible values are: "host", "peripheral ", "drd" or "typec-pd" +- If this property is not defined, the phy will default to "host" mode. +-- brcm,syscon-piarbctl: phandle to syscon for handling config registers +-NOTE: one or both of the following two properties must be set +-- brcm,has-xhci: Boolean indicating the phy has an XHCI phy. +-- brcm,has-eohci: Boolean indicating the phy has an EHCI/OHCI phy. +- +- +-Example: +- +-usbphy_0: usb-phy@f0470200 { +- reg = <0xf0470200 0xb8>, +- <0xf0471940 0x6c0>; +- compatible = "brcm,brcmstb-usb-phy"; +- #phy-cells = <1>; +- dr_mode = "host" +- brcm,ioc = <1>; +- brcm,ipp = <1>; +- brcm,has-xhci; +- brcm,has-eohci; +- clocks = <&usb20>, <&usb30>; +- clock-names = "sw_usb", "sw_usb3"; +-}; +- +-usb-phy@29f0200 { +- reg = <0x29f0200 0x200>, +- <0x29c0880 0x30>, +- <0x29cc100 0x534>, +- <0x2808000 0x24>, +- <0x2980080 0x8>; +- reg-names = "ctrl", +- "xhci_ec", +- "xhci_gbl", +- "usb_phy", +- "usb_mdio"; +- brcm,ioc = <0x0>; +- brcm,ipp = <0x0>; +- compatible = "brcm,bcm7211-usb-phy"; +- interrupts = <0x30>; +- interrupt-parent = <&vpu_intr1_nosec_intc>; +- interrupt-names = "wake"; +- #phy-cells = <0x1>; +- brcm,has-xhci; +- syscon-piarbctl = <&syscon_piarbctl>; +- clocks = <&scmi_clk 256>; +- clock-names = "sw_usb"; +-}; +--- /dev/null ++++ b/Documentation/devicetree/bindings/phy/brcm,brcmstb-usb-phy.yaml +@@ -0,0 +1,193 @@ ++# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause ++%YAML 1.2 ++--- ++$id: http://devicetree.org/schemas/phy/brcm,brcmstb-usb-phy.yaml# ++$schema: http://devicetree.org/meta-schemas/core.yaml# ++ ++title: Broadcom STB USB PHY ++ ++description: Broadcom's PHY that handles EHCI/OHCI and/or XHCI ++ ++maintainers: ++ - Al Cooper <alcooperx@gmail.com> ++ - Rafał Miłecki <rafal@milecki.pl> ++ ++properties: ++ compatible: ++ enum: ++ - brcm,bcm7211-usb-phy ++ - brcm,bcm7216-usb-phy ++ - brcm,brcmstb-usb-phy ++ ++ reg: ++ minItems: 1 ++ maxItems: 6 ++ items: ++ - description: the base CTRL register ++ - description: XHCI EC register ++ - description: XHCI GBL register ++ - description: USB PHY register ++ - description: USB MDIO register ++ - description: BDC register ++ ++ reg-names: ++ minItems: 1 ++ maxItems: 6 ++ items: ++ - const: ctrl ++ - const: xhci_ec ++ - const: xhci_gbl ++ - const: usb_phy ++ - const: usb_mdio ++ - const: bdc_ec ++ ++ clocks: ++ minItems: 1 ++ maxItems: 2 ++ ++ clock-names: ++ minItems: 1 ++ maxItems: 2 ++ items: ++ - const: sw_usb ++ - const: sw_usb3 ++ ++ interrupts: ++ description: wakeup interrupt ++ ++ interrupt-names: ++ const: wake ++ ++ brcm,ipp: ++ $ref: /schemas/types.yaml#/definitions/uint32 ++ description: Invert Port Power ++ minimum: 0 ++ maximum: 1 ++ ++ brcm,ioc: ++ $ref: /schemas/types.yaml#/definitions/uint32 ++ description: Invert Over Current detection ++ minimum: 0 ++ maximum: 1 ++ ++ dr_mode: ++ description: PHY Device mode. If this property is not defined, the PHY will ++ default to "host" mode. ++ enum: ++ - host ++ - peripheral ++ - drd ++ - typec-pd ++ ++ brcm,syscon-piarbctl: ++ description: phandle to syscon for handling config registers ++ $ref: /schemas/types.yaml#/definitions/phandle ++ ++ brcm,has-xhci: ++ description: Indicates the PHY has an XHCI PHY. ++ type: boolean ++ ++ brcm,has-eohci: ++ description: Indicates the PHY has an EHCI/OHCI PHY. ++ type: boolean ++ ++ "#phy-cells": ++ description: | ++ Cell allows setting the type of the PHY. Possible values are: ++ - PHY_TYPE_USB2 for USB1.1/2.0 PHY ++ - PHY_TYPE_USB3 for USB3.x PHY ++ const: 1 ++ ++required: ++ - reg ++ - "#phy-cells" ++ ++anyOf: ++ - required: ++ - brcm,has-xhci ++ - required: ++ - brcm,has-eohci ++ ++allOf: ++ - if: ++ properties: ++ compatible: ++ contains: ++ const: brcm,brcmstb-usb-phy ++ then: ++ properties: ++ reg: ++ minItems: 1 ++ maxItems: 2 ++ - if: ++ properties: ++ compatible: ++ contains: ++ const: brcm,bcm7211-usb-phy ++ then: ++ properties: ++ reg: ++ minItems: 5 ++ maxItems: 6 ++ reg-names: ++ minItems: 5 ++ maxItems: 6 ++ - if: ++ properties: ++ compatible: ++ contains: ++ const: brcm,bcm7216-usb-phy ++ then: ++ properties: ++ reg: ++ minItems: 3 ++ maxItems: 3 ++ reg-names: ++ minItems: 3 ++ maxItems: 3 ++ ++additionalProperties: false ++ ++examples: ++ - | ++ #include <dt-bindings/phy/phy.h> ++ ++ usb-phy@f0470200 { ++ compatible = "brcm,brcmstb-usb-phy"; ++ reg = <0xf0470200 0xb8>, ++ <0xf0471940 0x6c0>; ++ #phy-cells = <1>; ++ dr_mode = "host"; ++ brcm,ioc = <1>; ++ brcm,ipp = <1>; ++ brcm,has-xhci; ++ brcm,has-eohci; ++ clocks = <&usb20>, <&usb30>; ++ clock-names = "sw_usb", "sw_usb3"; ++ }; ++ - | ++ #include <dt-bindings/phy/phy.h> ++ ++ usb-phy@29f0200 { ++ compatible = "brcm,bcm7211-usb-phy"; ++ reg = <0x29f0200 0x200>, ++ <0x29c0880 0x30>, ++ <0x29cc100 0x534>, ++ <0x2808000 0x24>, ++ <0x2980080 0x8>; ++ reg-names = "ctrl", ++ "xhci_ec", ++ "xhci_gbl", ++ "usb_phy", ++ "usb_mdio"; ++ brcm,ioc = <0x0>; ++ brcm,ipp = <0x0>; ++ interrupts = <0x30>; ++ interrupt-parent = <&vpu_intr1_nosec_intc>; ++ interrupt-names = "wake"; ++ #phy-cells = <0x1>; ++ brcm,has-xhci; ++ brcm,syscon-piarbctl = <&syscon_piarbctl>; ++ clocks = <&scmi_clk 256>; ++ clock-names = "sw_usb"; ++ }; diff --git a/target/linux/bcm4908/patches-5.10/086-v5.12-0004-dt-bindings-phy-brcm-brcmstb-usb-phy-add-BCM4908-bin.patch b/target/linux/bcm4908/patches-5.10/086-v5.12-0004-dt-bindings-phy-brcm-brcmstb-usb-phy-add-BCM4908-bin.patch new file mode 100644 index 0000000000..6127800a43 --- /dev/null +++ b/target/linux/bcm4908/patches-5.10/086-v5.12-0004-dt-bindings-phy-brcm-brcmstb-usb-phy-add-BCM4908-bin.patch @@ -0,0 +1,41 @@ +From 46b616c1574def7a1629bdeded3d44e76382f950 Mon Sep 17 00:00:00 2001 +From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl> +Date: Wed, 6 Jan 2021 21:58:37 +0100 +Subject: [PATCH] dt-bindings: phy: brcm, brcmstb-usb-phy: add BCM4908 binding +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +BCM4908 uses the same PHY and may require just a slightly different +programming. + +Signed-off-by: Rafał Miłecki <rafal@milecki.pl> +Acked-by: Florian Fainelli <f.fainelli@gmail.com> +Acked-by: Rob Herring <robh@kernel.org> +Link: https://lore.kernel.org/r/20210106205838.10964-2-zajec5@gmail.com +Signed-off-by: Vinod Koul <vkoul@kernel.org> +--- + .../devicetree/bindings/phy/brcm,brcmstb-usb-phy.yaml | 5 ++++- + 1 file changed, 4 insertions(+), 1 deletion(-) + +--- a/Documentation/devicetree/bindings/phy/brcm,brcmstb-usb-phy.yaml ++++ b/Documentation/devicetree/bindings/phy/brcm,brcmstb-usb-phy.yaml +@@ -15,6 +15,7 @@ maintainers: + properties: + compatible: + enum: ++ - brcm,bcm4908-usb-phy + - brcm,bcm7211-usb-phy + - brcm,bcm7216-usb-phy + - brcm,brcmstb-usb-phy +@@ -113,7 +114,9 @@ allOf: + properties: + compatible: + contains: +- const: brcm,brcmstb-usb-phy ++ enum: ++ - const: brcm,bcm4908-usb-phy ++ - const: brcm,brcmstb-usb-phy + then: + properties: + reg: diff --git a/target/linux/bcm4908/patches-5.10/086-v5.12-0005-phy-phy-brcm-usb-support-PHY-on-the-BCM4908.patch b/target/linux/bcm4908/patches-5.10/086-v5.12-0005-phy-phy-brcm-usb-support-PHY-on-the-BCM4908.patch new file mode 100644 index 0000000000..a2cea0f138 --- /dev/null +++ b/target/linux/bcm4908/patches-5.10/086-v5.12-0005-phy-phy-brcm-usb-support-PHY-on-the-BCM4908.patch @@ -0,0 +1,48 @@ +From 4b402fa8e0b7817f3e3738d7828038f114e6899e Mon Sep 17 00:00:00 2001 +From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl> +Date: Wed, 6 Jan 2021 21:58:38 +0100 +Subject: [PATCH] phy: phy-brcm-usb: support PHY on the BCM4908 +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +BCM4908 seems to have slightly different registers but works when +programmed just like the STB one. + +Signed-off-by: Rafał Miłecki <rafal@milecki.pl> +Acked-by: Florian Fainelli <f.fainelli@gmail.com> +Link: https://lore.kernel.org/r/20210106205838.10964-3-zajec5@gmail.com +Signed-off-by: Vinod Koul <vkoul@kernel.org> +--- + drivers/phy/broadcom/Kconfig | 3 ++- + drivers/phy/broadcom/phy-brcm-usb.c | 4 ++++ + 2 files changed, 6 insertions(+), 1 deletion(-) + +--- a/drivers/phy/broadcom/Kconfig ++++ b/drivers/phy/broadcom/Kconfig +@@ -91,10 +91,11 @@ config PHY_BRCM_SATA + + config PHY_BRCM_USB + tristate "Broadcom STB USB PHY driver" +- depends on ARCH_BRCMSTB || COMPILE_TEST ++ depends on ARCH_BCM4908 || ARCH_BRCMSTB || COMPILE_TEST + depends on OF + select GENERIC_PHY + select SOC_BRCMSTB ++ default ARCH_BCM4908 + default ARCH_BRCMSTB + help + Enable this to support the Broadcom STB USB PHY. +--- a/drivers/phy/broadcom/phy-brcm-usb.c ++++ b/drivers/phy/broadcom/phy-brcm-usb.c +@@ -287,6 +287,10 @@ static const struct match_chip_info chip + + static const struct of_device_id brcm_usb_dt_ids[] = { + { ++ .compatible = "brcm,bcm4908-usb-phy", ++ .data = &chip_info_7445, ++ }, ++ { + .compatible = "brcm,bcm7216-usb-phy", + .data = &chip_info_7216, + }, diff --git a/target/linux/bcm4908/patches-5.10/086-v5.13-0001-phy-phy-brcm-usb-select-SOC_BRCMSTB-on-brcmstb-only.patch b/target/linux/bcm4908/patches-5.10/086-v5.13-0001-phy-phy-brcm-usb-select-SOC_BRCMSTB-on-brcmstb-only.patch new file mode 100644 index 0000000000..89ee4df78c --- /dev/null +++ b/target/linux/bcm4908/patches-5.10/086-v5.13-0001-phy-phy-brcm-usb-select-SOC_BRCMSTB-on-brcmstb-only.patch @@ -0,0 +1,35 @@ +From 261ab1fd5c5d2d7ff7d5bab3f5db3c69c4bcea58 Mon Sep 17 00:00:00 2001 +From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl> +Date: Fri, 5 Mar 2021 16:24:06 +0100 +Subject: [PATCH] phy: phy-brcm-usb: select SOC_BRCMSTB on brcmstb only +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +phy-brcm-usb has some conditional init code required on selected brcmstb +devices. Execution of that code depends on family / product detected by +brcmstb soc code. + +For ARCH_BCM4908 brcmstb soc code always return 0 values as ids. Don't +bother selecting & compiling that redundant driver. + +Depends-on: 149ae80b1d50 ("soc: bcm: brcmstb: add stubs for getting platform IDs") +Signed-off-by: Rafał Miłecki <rafal@milecki.pl> +Acked-by: Florian Fainelli <f.fainelli@gmail.com> +Link: https://lore.kernel.org/r/20210305152406.2588-1-zajec5@gmail.com +Signed-off-by: Vinod Koul <vkoul@kernel.org> +--- + drivers/phy/broadcom/Kconfig | 2 +- + 1 file changed, 1 insertion(+), 1 deletion(-) + +--- a/drivers/phy/broadcom/Kconfig ++++ b/drivers/phy/broadcom/Kconfig +@@ -94,7 +94,7 @@ config PHY_BRCM_USB + depends on ARCH_BCM4908 || ARCH_BRCMSTB || COMPILE_TEST + depends on OF + select GENERIC_PHY +- select SOC_BRCMSTB ++ select SOC_BRCMSTB if ARCH_BRCMSTB + default ARCH_BCM4908 + default ARCH_BRCMSTB + help diff --git a/target/linux/bcm4908/patches-5.10/086-v5.13-0002-dt-bindings-phy-brcm-brcmstb-usb-phy-add-power-domai.patch b/target/linux/bcm4908/patches-5.10/086-v5.13-0002-dt-bindings-phy-brcm-brcmstb-usb-phy-add-power-domai.patch new file mode 100644 index 0000000000..4db442c0ae --- /dev/null +++ b/target/linux/bcm4908/patches-5.10/086-v5.13-0002-dt-bindings-phy-brcm-brcmstb-usb-phy-add-power-domai.patch @@ -0,0 +1,31 @@ +From d9de0cbd5b1f6b51c92a40937945f26a35d848ff Mon Sep 17 00:00:00 2001 +From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl> +Date: Tue, 9 Mar 2021 19:26:16 +0100 +Subject: [PATCH] dt-bindings: phy: brcm,brcmstb-usb-phy: add power-domains +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +On BCM4908 USB PHY is managed using power controller so it needs +describing properly using the power-domains. + +Signed-off-by: Rafał Miłecki <rafal@milecki.pl> +Acked-by: Florian Fainelli <f.fainelli@gmail.com> +Link: https://lore.kernel.org/r/20210309182616.25783-1-zajec5@gmail.com +Signed-off-by: Vinod Koul <vkoul@kernel.org> +--- + .../devicetree/bindings/phy/brcm,brcmstb-usb-phy.yaml | 3 +++ + 1 file changed, 3 insertions(+) + +--- a/Documentation/devicetree/bindings/phy/brcm,brcmstb-usb-phy.yaml ++++ b/Documentation/devicetree/bindings/phy/brcm,brcmstb-usb-phy.yaml +@@ -42,6 +42,9 @@ properties: + - const: usb_mdio + - const: bdc_ec + ++ power-domains: ++ maxItems: 1 ++ + clocks: + minItems: 1 + maxItems: 2 diff --git a/target/linux/bcm4908/patches-5.10/170-net-broadcom-bcm4908_enet-reset-DMA-rings-sw-indexes.patch b/target/linux/bcm4908/patches-5.10/170-net-broadcom-bcm4908_enet-reset-DMA-rings-sw-indexes.patch new file mode 100644 index 0000000000..7e82230f9a --- /dev/null +++ b/target/linux/bcm4908/patches-5.10/170-net-broadcom-bcm4908_enet-reset-DMA-rings-sw-indexes.patch @@ -0,0 +1,43 @@ +From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl> +Date: Tue, 22 Jun 2021 07:05:04 +0200 +Subject: [PATCH] net: broadcom: bcm4908_enet: reset DMA rings sw indexes + properly +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +Resetting software indexes in bcm4908_dma_alloc_buf_descs() is not +enough as it's called during device probe only. Driver resets DMA on +every .ndo_open callback and it's required to reset indexes then. + +This fixes inconsistent rings state and stalled traffic after interface +down & up sequence. + +Fixes: 4feffeadbcb2 ("net: broadcom: bcm4908enet: add BCM4908 controller driver") +Signed-off-by: Rafał Miłecki <rafal@milecki.pl> +--- + drivers/net/ethernet/broadcom/bcm4908_enet.c | 6 +++--- + 1 file changed, 3 insertions(+), 3 deletions(-) + +--- a/drivers/net/ethernet/broadcom/bcm4908_enet.c ++++ b/drivers/net/ethernet/broadcom/bcm4908_enet.c +@@ -174,9 +174,6 @@ static int bcm4908_dma_alloc_buf_descs(s + if (!ring->slots) + goto err_free_buf_descs; + +- ring->read_idx = 0; +- ring->write_idx = 0; +- + return 0; + + err_free_buf_descs: +@@ -303,6 +300,9 @@ static void bcm4908_enet_dma_ring_init(s + + enet_write(enet, ring->st_ram_block + ENET_DMA_CH_STATE_RAM_BASE_DESC_PTR, + (uint32_t)ring->dma_addr); ++ ++ ring->read_idx = 0; ++ ring->write_idx = 0; + } + + static void bcm4908_enet_dma_uninit(struct bcm4908_enet *enet) diff --git a/target/linux/bcm4908/patches-5.10/300-arm64-dts-broadcom-bcm4908-limit-amount-of-GPIOs.patch b/target/linux/bcm4908/patches-5.10/300-arm64-dts-broadcom-bcm4908-limit-amount-of-GPIOs.patch new file mode 100644 index 0000000000..c28c69c6f8 --- /dev/null +++ b/target/linux/bcm4908/patches-5.10/300-arm64-dts-broadcom-bcm4908-limit-amount-of-GPIOs.patch @@ -0,0 +1,23 @@ +From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl> +Date: Mon, 15 Feb 2021 22:01:03 +0100 +Subject: [PATCH] arm64: dts: broadcom: bcm4908: limit amount of GPIOs +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +Linux driver can't handle more than 64 GPIOs + +Signed-off-by: Rafał Miłecki <rafal@milecki.pl> +--- + +--- a/arch/arm64/boot/dts/broadcom/bcm4908/bcm4908.dtsi ++++ b/arch/arm64/boot/dts/broadcom/bcm4908/bcm4908.dtsi +@@ -281,7 +281,7 @@ + gpio0: gpio-controller@500 { + compatible = "brcm,bcm6345-gpio"; + reg-names = "dirout", "dat"; +- reg = <0x500 0x28>, <0x528 0x28>; ++ reg = <0x500 0x8>, <0x528 0x8>; + + #gpio-cells = <2>; + gpio-controller; diff --git a/target/linux/bcm4908/patches-5.10/400-mtd-rawnand-brcmnand-disable-WP-on-BCM4908.patch b/target/linux/bcm4908/patches-5.10/400-mtd-rawnand-brcmnand-disable-WP-on-BCM4908.patch new file mode 100644 index 0000000000..74dddb7f48 --- /dev/null +++ b/target/linux/bcm4908/patches-5.10/400-mtd-rawnand-brcmnand-disable-WP-on-BCM4908.patch @@ -0,0 +1,34 @@ +From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl> +Date: Thu, 21 Jan 2021 10:44:53 +0100 +Subject: [PATCH] mtd: rawnand: brcmnand: disable WP on BCM4908 +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +BCM4908 contains NAND controller version 0x0701 (v7.1). It means that +NAND_WP should be available. + +For some reason setting #WP on doesn't result in clearing NAND_STATUS_WP +status bit: +[ 1.077857] bcm63138_nand ff801800.nand: timeout on status poll (expected c0000040 got c00000c0) +[ 1.086832] bcm63138_nand ff801800.nand: nand #WP expected on + +For now try working without touching #WP. + +Signed-off-by: Rafał Miłecki <rafal@milecki.pl> +--- + +--- a/drivers/mtd/nand/raw/brcmnand/brcmnand.c ++++ b/drivers/mtd/nand/raw/brcmnand/brcmnand.c +@@ -37,7 +37,11 @@ + * 1: NAND_WP is set by default, cleared for erase/write operations + * 2: NAND_WP is always cleared + */ ++#if IS_ENABLED(CONFIG_ARCH_BCM4908) ++static int wp_on = 0; ++#else + static int wp_on = 1; ++#endif + module_param(wp_on, int, 0444); + + /*********************************************************************** diff --git a/target/linux/bcm4908/patches-5.10/700-net-dsa-bcm_sf2-enable-GPHY-for-switch-probing.patch b/target/linux/bcm4908/patches-5.10/700-net-dsa-bcm_sf2-enable-GPHY-for-switch-probing.patch new file mode 100644 index 0000000000..c8d362df4a --- /dev/null +++ b/target/linux/bcm4908/patches-5.10/700-net-dsa-bcm_sf2-enable-GPHY-for-switch-probing.patch @@ -0,0 +1,46 @@ +From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl> +Date: Mon, 15 Feb 2021 23:59:26 +0100 +Subject: [PATCH] net: dsa: bcm_sf2: enable GPHY for switch probing +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +GPHY needs to be enabled to succesfully probe & setup switch port +connected to it. Otherwise hardcoding PHY OUI would be required. + +Before: +brcm-sf2 80080000.switch lan4 (uninitialized): PHY [800c05c0.mdio--1:08] driver [Generic PHY] (irq=POLL) +brcm-sf2 80080000.switch lan3 (uninitialized): PHY [800c05c0.mdio--1:09] driver [Generic PHY] (irq=POLL) +brcm-sf2 80080000.switch lan2 (uninitialized): PHY [800c05c0.mdio--1:0a] driver [Generic PHY] (irq=POLL) +brcm-sf2 80080000.switch lan1 (uninitialized): PHY [800c05c0.mdio--1:0b] driver [Generic PHY] (irq=POLL) +brcm-sf2 80080000.switch wan (uninitialized): error -5 setting up PHY for tree 0, switch 0, port 7 + +After: +brcm-sf2 80080000.switch lan4 (uninitialized): PHY [800c05c0.mdio--1:08] driver [Generic PHY] (irq=POLL) +brcm-sf2 80080000.switch lan3 (uninitialized): PHY [800c05c0.mdio--1:09] driver [Generic PHY] (irq=POLL) +brcm-sf2 80080000.switch lan2 (uninitialized): PHY [800c05c0.mdio--1:0a] driver [Generic PHY] (irq=POLL) +brcm-sf2 80080000.switch lan1 (uninitialized): PHY [800c05c0.mdio--1:0b] driver [Generic PHY] (irq=POLL) +brcm-sf2 80080000.switch wan (uninitialized): PHY [800c05c0.mdio--1:0c] driver [Generic PHY] (irq=POLL) + +Signed-off-by: Rafał Miłecki <rafal@milecki.pl> +--- + drivers/net/dsa/bcm_sf2.c | 4 ++++ + 1 file changed, 4 insertions(+) + +--- a/drivers/net/dsa/bcm_sf2.c ++++ b/drivers/net/dsa/bcm_sf2.c +@@ -1484,10 +1484,14 @@ static int bcm_sf2_sw_probe(struct platf + rev = reg_readl(priv, REG_PHY_REVISION); + priv->hw_params.gphy_rev = rev & PHY_REVISION_MASK; + ++ bcm_sf2_gphy_enable_set(priv->dev->ds, true); ++ + ret = b53_switch_register(dev); + if (ret) + goto out_mdio; + ++ bcm_sf2_gphy_enable_set(priv->dev->ds, false); ++ + dev_info(&pdev->dev, + "Starfighter 2 top: %x.%02x, core: %x.%02x, IRQs: %d, %d\n", + priv->hw_params.top_rev >> 8, priv->hw_params.top_rev & 0xff, diff --git a/target/linux/bcm4908/patches-5.10/701-net-dsa-bcm_sf2-keep-GPHY-enabled-on-the-BCM4908.patch b/target/linux/bcm4908/patches-5.10/701-net-dsa-bcm_sf2-keep-GPHY-enabled-on-the-BCM4908.patch new file mode 100644 index 0000000000..9449cf9e5c --- /dev/null +++ b/target/linux/bcm4908/patches-5.10/701-net-dsa-bcm_sf2-keep-GPHY-enabled-on-the-BCM4908.patch @@ -0,0 +1,30 @@ +From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl> +Date: Tue, 16 Feb 2021 00:06:35 +0100 +Subject: [PATCH] net: dsa: bcm_sf2: keep GPHY enabled on the BCM4908 + +Trying to access disabled PHY results in MDIO_READ_FAIL and: +[ 11.962886] brcm-sf2 80080000.switch wan: configuring for phy/internal link mode +[ 11.972500] 8021q: adding VLAN 0 to HW filter on device wan +[ 11.980205] ------------[ cut here ]------------ +[ 11.984885] WARNING: CPU: 0 PID: 7 at phy_error+0x10/0x58 + +Signed-off-by: Rafał Miłecki <rafal@milecki.pl> +--- + drivers/net/dsa/bcm_sf2.c | 6 ++++++ + 1 file changed, 6 insertions(+) + +--- a/drivers/net/dsa/bcm_sf2.c ++++ b/drivers/net/dsa/bcm_sf2.c +@@ -1498,6 +1498,12 @@ static int bcm_sf2_sw_probe(struct platf + priv->hw_params.core_rev >> 8, priv->hw_params.core_rev & 0xff, + priv->irq0, priv->irq1); + ++ /* BCM4908 has 5 GPHYs which means bcm_sf2_port_setup() will not enable ++ * GPHY when needed. Leave it enabled here. ++ */ ++ if (priv->type == BCM4908_DEVICE_ID) ++ bcm_sf2_gphy_enable_set(priv->dev->ds, true); ++ + return 0; + + out_mdio: |