diff options
| author | Felix Fietkau <nbd@nbd.name> | 2022-03-27 21:26:31 +0200 |
|---|---|---|
| committer | Felix Fietkau <nbd@nbd.name> | 2022-03-27 21:36:40 +0200 |
| commit | a3764ee29dd09394fa750c78160e300d86532561 (patch) | |
| tree | 5698d325acdbd921f7fa4203149adf3b5fb87f39 | |
| parent | ac11f36b337da29f422d16776cf36c98013dcc77 (diff) | |
| download | upstream-a3764ee29dd09394fa750c78160e300d86532561.tar.gz upstream-a3764ee29dd09394fa750c78160e300d86532561.tar.bz2 upstream-a3764ee29dd09394fa750c78160e300d86532561.zip | |
ramips: add linux 5.15 support for mt7621
Signed-off-by: Felix Fietkau <nbd@nbd.name>
43 files changed, 6804 insertions, 2 deletions
diff --git a/target/linux/ramips/Makefile b/target/linux/ramips/Makefile index c9fc1aa58a..7d34dfe676 100644 --- a/target/linux/ramips/Makefile +++ b/target/linux/ramips/Makefile @@ -11,6 +11,7 @@ SUBTARGETS:=mt7620 mt7621 mt76x8 rt288x rt305x rt3883 FEATURES:=squashfs gpio KERNEL_PATCHVER:=5.10 +KERNEL_TESTING_PATCHVER:=5.15 define Target/Description Build firmware images for Ralink RT288x/RT3xxx based boards. diff --git a/target/linux/ramips/dts/mt7621.dtsi b/target/linux/ramips/dts/mt7621.dtsi index 09124072bd..3e86a7894a 100644 --- a/target/linux/ramips/dts/mt7621.dtsi +++ b/target/linux/ramips/dts/mt7621.dtsi @@ -41,12 +41,14 @@ bootargs = "console=ttyS0,57600"; }; +#ifdef DTS_LEGACY pll: pll { compatible = "mediatek,mt7621-pll", "syscon"; #clock-cells = <1>; clock-output-names = "cpu", "bus"; }; +#endif sysclock: sysclock { #clock-cells = <0>; @@ -65,7 +67,16 @@ #size-cells = <1>; sysc: syscon@0 { +#ifdef DTS_LEGACY compatible = "mtk,mt7621-sysc", "syscon"; +#else + compatible = "mediatek,mt7621-sysc", "syscon"; + #clock-cells = <1>; + ralink,memctl = <&memc>; + clock-output-names = "xtal", "cpu", "bus", + "50m", "125m", "150m", + "250m", "270m"; +#endif reg = <0x0 0x100>; }; @@ -79,6 +90,7 @@ #interrupt-cells = <2>; compatible = "mediatek,mt7621-gpio"; gpio-controller; + gpio-ranges = <&pinctrl 0 0 95>; interrupt-controller; reg = <0x600 0x100>; interrupt-parent = <&gic>; @@ -137,7 +149,11 @@ }; memc: syscon@5000 { +#ifdef DTS_LEGACY compatible = "mtk,mt7621-memc", "syscon"; +#else + compatible = "mediatek,mt7621-memc", "syscon"; +#endif reg = <0x5000 0x1000>; }; @@ -197,7 +213,11 @@ compatible = "ralink,mt7621-spi"; reg = <0xb00 0x100>; +#ifdef DTS_LEGACY clocks = <&pll MT7621_CLK_BUS>; +#else + clocks = <&sysc MT7621_CLK_BUS>; +#endif resets = <&rstctrl 18>; reset-names = "spi"; @@ -405,7 +425,11 @@ timer { compatible = "mti,gic-timer"; interrupts = <GIC_LOCAL 1 IRQ_TYPE_NONE>; +#ifdef DTS_LEGACY clocks = <&pll MT7621_CLK_CPU>; +#else + clocks = <&sysc MT7621_CLK_CPU>; +#endif }; }; @@ -442,13 +466,19 @@ compatible = "mediatek,mt7621-eth"; reg = <0x1e100000 0x10000>; +#ifdef DTS_LEGACY clocks = <&sysclock>; clock-names = "ethif"; +#else + clocks = <&sysc MT7621_CLK_FE>, + <&sysc MT7621_CLK_ETH>; + clock-names = "fe", "ethif"; +#endif #address-cells = <1>; #size-cells = <0>; - resets = <&rstctrl 6 &rstctrl 23>; + resets = <&rstctrl 6>, <&rstctrl 23>; reset-names = "fe", "eth"; interrupt-parent = <&gic>; @@ -456,8 +486,10 @@ mediatek,ethsys = <&sysc>; +#ifdef DTS_LEGACY pinctrl-names = "default"; pinctrl-0 = <&mdio_pins>, <&rgmii1_pins>, <&rgmii2_pins>; +#endif gmac0: mac@0 { compatible = "mediatek,eth-mac"; @@ -557,15 +589,22 @@ device_type = "pci"; +#ifdef DTS_LEGACY ranges = <0x02000000 0 0x00000000 0x60000000 0 0x10000000>, /* pci memory */ <0x01000000 0 0x00000000 0x1e160000 0 0x00010000>; /* io space */ +#else + ranges = <0x02000000 0 0x60000000 0x60000000 0 0x10000000>, /* pci memory */ + <0x01000000 0 0x00000000 0x1e160000 0 0x00010000>; /* io space */ +#endif + + status = "disabled"; +#ifdef DTS_LEGACY interrupt-parent = <&gic>; interrupts = <GIC_SHARED 4 IRQ_TYPE_LEVEL_HIGH GIC_SHARED 24 IRQ_TYPE_LEVEL_HIGH GIC_SHARED 25 IRQ_TYPE_LEVEL_HIGH>; - status = "disabled"; resets = <&rstctrl 24>, <&rstctrl 25>, <&rstctrl 26>; reset-names = "pcie0", "pcie1", "pcie2"; @@ -573,6 +612,13 @@ clock-names = "pcie0", "pcie1", "pcie2"; phys = <&pcie0_phy 1>, <&pcie2_phy 0>; phy-names = "pcie-phy0", "pcie-phy2"; +#else + #interrupt-cells = <1>; + interrupt-map-mask = <0xF800 0 0 0>; + interrupt-map = <0x0000 0 0 0 &gic GIC_SHARED 4 IRQ_TYPE_LEVEL_HIGH>, + <0x0800 0 0 0 &gic GIC_SHARED 24 IRQ_TYPE_LEVEL_HIGH>, + <0x1000 0 0 0 &gic GIC_SHARED 25 IRQ_TYPE_LEVEL_HIGH>; +#endif reset-gpios = <&gpio 19 GPIO_ACTIVE_LOW>; @@ -582,6 +628,15 @@ #size-cells = <2>; device_type = "pci"; ranges; +#ifndef DTS_LEGACY + #interrupt-cells = <1>; + interrupt-map-mask = <0 0 0 0>; + interrupt-map = <0 0 0 0 &gic GIC_SHARED 4 IRQ_TYPE_LEVEL_HIGH>; + resets = <&rstctrl 24>; + clocks = <&sysc MT7621_CLK_PCIE0>; + phys = <&pcie0_phy 1>; + phy-names = "pcie-phy0"; +#endif }; pcie1: pcie@1,0 { @@ -590,6 +645,15 @@ #size-cells = <2>; device_type = "pci"; ranges; +#ifndef DTS_LEGACY + #interrupt-cells = <1>; + interrupt-map-mask = <0 0 0 0>; + interrupt-map = <0 0 0 0 &gic GIC_SHARED 24 IRQ_TYPE_LEVEL_HIGH>; + resets = <&rstctrl 25>; + clocks = <&sysc MT7621_CLK_PCIE1>; + phys = <&pcie0_phy 1>; + phy-names = "pcie-phy1"; +#endif }; pcie2: pcie@2,0 { @@ -598,18 +662,33 @@ #size-cells = <2>; device_type = "pci"; ranges; +#ifndef DTS_LEGACY + #interrupt-cells = <1>; + interrupt-map-mask = <0 0 0 0>; + interrupt-map = <0 0 0 0 &gic GIC_SHARED 25 IRQ_TYPE_LEVEL_HIGH>; + resets = <&rstctrl 26>; + clocks = <&sysc MT7621_CLK_PCIE2>; + phys = <&pcie2_phy 0>; + phy-names = "pcie-phy2"; +#endif }; }; pcie0_phy: pcie-phy@1e149000 { compatible = "mediatek,mt7621-pci-phy"; reg = <0x1e149000 0x0700>; +#ifndef DTS_LEGACY + clocks = <&sysc MT7621_CLK_XTAL>; +#endif #phy-cells = <1>; }; pcie2_phy: pcie-phy@1e14a000 { compatible = "mediatek,mt7621-pci-phy"; reg = <0x1e14a000 0x0700>; +#ifndef DTS_LEGACY + clocks = <&sysc MT7621_CLK_XTAL>; +#endif #phy-cells = <1>; }; }; diff --git a/target/linux/ramips/image/mt7621.mk b/target/linux/ramips/image/mt7621.mk index cd28e36917..1e9b59d74f 100644 --- a/target/linux/ramips/image/mt7621.mk +++ b/target/linux/ramips/image/mt7621.mk @@ -9,6 +9,10 @@ DEFAULT_SOC := mt7621 KERNEL_DTB += -d21 DEVICE_VARS += ELECOM_HWNAME LINKSYS_HWNAME +ifdef CONFIG_LINUX_5_10 + DTS_CPPFLAGS += -DDTS_LEGACY +endif + define Build/beeline-trx echo -ne "hsqs" > $@.hsqs $(STAGING_DIR_HOST)/bin/otrx create $@.trx -M 0x746f435d -f $@ \ diff --git a/target/linux/ramips/mt7621/config-5.15 b/target/linux/ramips/mt7621/config-5.15 new file mode 100644 index 0000000000..757d9acdcd --- /dev/null +++ b/target/linux/ramips/mt7621/config-5.15 @@ -0,0 +1,315 @@ +CONFIG_AF_UNIX_OOB=y +CONFIG_ARCH_32BIT_OFF_T=y +CONFIG_ARCH_HIBERNATION_POSSIBLE=y +CONFIG_ARCH_KEEP_MEMBLOCK=y +CONFIG_ARCH_MMAP_RND_BITS_MAX=15 +CONFIG_ARCH_MMAP_RND_COMPAT_BITS_MAX=15 +CONFIG_ARCH_NEEDS_CPU_IDLE_COUPLED=y +CONFIG_ARCH_SUSPEND_POSSIBLE=y +CONFIG_AT803X_PHY=y +CONFIG_BINARY_PRINTF=y +CONFIG_BLK_MQ_PCI=y +CONFIG_BOARD_SCACHE=y +CONFIG_BOUNCE=y +CONFIG_CEVT_R4K=y +CONFIG_CLKSRC_MIPS_GIC=y +# CONFIG_CLKSRC_PISTACHIO is not set +CONFIG_CLK_MT7621=y +CONFIG_CLOCKSOURCE_WATCHDOG=y +CONFIG_CLONE_BACKWARDS=y +CONFIG_CMDLINE="rootfstype=squashfs,jffs2" +CONFIG_CMDLINE_BOOL=y +# CONFIG_CMDLINE_OVERRIDE is not set +CONFIG_COMMON_CLK=y +# CONFIG_COMMON_CLK_BOSTON is not set +# CONFIG_COMMON_CLK_PISTACHIO is not set +CONFIG_COMPAT_32BIT_TIME=y +CONFIG_CPU_GENERIC_DUMP_TLB=y +CONFIG_CPU_HAS_DIEI=y +CONFIG_CPU_HAS_PREFETCH=y +CONFIG_CPU_HAS_RIXI=y +CONFIG_CPU_HAS_SYNC=y +CONFIG_CPU_IDLE=y +CONFIG_CPU_IDLE_GOV_TEO=y +CONFIG_CPU_MIPS32=y +# CONFIG_CPU_MIPS32_R1 is not set +CONFIG_CPU_MIPS32_R2=y +CONFIG_CPU_MIPSR2=y +CONFIG_CPU_MIPSR2_IRQ_EI=y +CONFIG_CPU_MIPSR2_IRQ_VI=y +CONFIG_CPU_NEEDS_NO_SMARTMIPS_OR_MICROMIPS=y +CONFIG_CPU_PM=y +CONFIG_CPU_R4K_CACHE_TLB=y +CONFIG_CPU_RMAP=y +CONFIG_CPU_SUPPORTS_32BIT_KERNEL=y +CONFIG_CPU_SUPPORTS_HIGHMEM=y +CONFIG_CPU_SUPPORTS_MSA=y +CONFIG_CRC16=y +CONFIG_CRYPTO_DEFLATE=y +CONFIG_CRYPTO_HASH_INFO=y +CONFIG_CRYPTO_LIB_POLY1305_RSIZE=2 +CONFIG_CRYPTO_LZO=y +CONFIG_CRYPTO_RNG2=y +CONFIG_CRYPTO_ZSTD=y +CONFIG_CSRC_R4K=y +CONFIG_DEBUG_PINCTRL=y +CONFIG_DIMLIB=y +CONFIG_DMA_NONCOHERENT=y +# CONFIG_DTB_GNUBEE1 is not set +# CONFIG_DTB_GNUBEE2 is not set +CONFIG_DTB_RT_NONE=y +CONFIG_DTC=y +CONFIG_EARLY_PRINTK=y +CONFIG_FIXED_PHY=y +CONFIG_FWNODE_MDIO=y +CONFIG_FW_LOADER_PAGED_BUF=y +CONFIG_GENERIC_ATOMIC64=y +CONFIG_GENERIC_CLOCKEVENTS=y +CONFIG_GENERIC_CLOCKEVENTS_BROADCAST=y +CONFIG_GENERIC_CMOS_UPDATE=y +CONFIG_GENERIC_CPU_AUTOPROBE=y +CONFIG_GENERIC_FIND_FIRST_BIT=y +CONFIG_GENERIC_GETTIMEOFDAY=y +CONFIG_GENERIC_IOMAP=y +CONFIG_GENERIC_IRQ_CHIP=y +CONFIG_GENERIC_IRQ_EFFECTIVE_AFF_MASK=y +CONFIG_GENERIC_IRQ_SHOW=y +CONFIG_GENERIC_LIB_ASHLDI3=y +CONFIG_GENERIC_LIB_ASHRDI3=y +CONFIG_GENERIC_LIB_CMPDI2=y +CONFIG_GENERIC_LIB_LSHRDI3=y +CONFIG_GENERIC_LIB_UCMPDI2=y +CONFIG_GENERIC_PCI_IOMAP=y +CONFIG_GENERIC_PHY=y +CONFIG_GENERIC_PINCONF=y +CONFIG_GENERIC_SCHED_CLOCK=y +CONFIG_GENERIC_SMP_IDLE_THREAD=y +CONFIG_GENERIC_TIME_VSYSCALL=y +CONFIG_GLOB=y +CONFIG_GPIOLIB=y +CONFIG_GPIOLIB_IRQCHIP=y +CONFIG_GPIO_CDEV=y +CONFIG_GPIO_GENERIC=y +CONFIG_GPIO_MT7621=y +# CONFIG_GPIO_RALINK is not set +CONFIG_GPIO_WATCHDOG=y +# CONFIG_GPIO_WATCHDOG_ARCH_INITCALL is not set +CONFIG_GRO_CELLS=y +CONFIG_HANDLE_DOMAIN_IRQ=y +CONFIG_HARDWARE_WATCHPOINTS=y +CONFIG_HAS_DMA=y +CONFIG_HAS_IOMEM=y +CONFIG_HAS_IOPORT_MAP=y +CONFIG_HIGHMEM=y +CONFIG_I2C=y +CONFIG_I2C_ALGOBIT=y +CONFIG_I2C_BOARDINFO=y +CONFIG_I2C_CHARDEV=y +CONFIG_I2C_GPIO=y +CONFIG_I2C_MT7621=y +# CONFIG_INGENIC_CGU_JZ4760 is not set +CONFIG_INITRAMFS_SOURCE="" +CONFIG_IRQCHIP=y +CONFIG_IRQ_DOMAIN=y +CONFIG_IRQ_DOMAIN_HIERARCHY=y +CONFIG_IRQ_FORCED_THREADING=y +CONFIG_IRQ_MIPS_CPU=y +CONFIG_IRQ_WORK=y +CONFIG_KMAP_LOCAL=y +CONFIG_LED_TRIGGER_PHY=y +CONFIG_LIBFDT=y +CONFIG_LOCK_DEBUGGING_SUPPORT=y +CONFIG_LTO_NONE=y +CONFIG_LZO_COMPRESS=y +CONFIG_LZO_DECOMPRESS=y +# CONFIG_MACH_NINTENDO64 is not set +# CONFIG_MACH_REALTEK_RTL is not set +CONFIG_MDIO_BUS=y +CONFIG_MDIO_DEVICE=y +CONFIG_MDIO_DEVRES=y +CONFIG_MEDIATEK_GE_PHY=y +CONFIG_MEMFD_CREATE=y +CONFIG_MFD_SYSCON=y +CONFIG_MIGRATION=y +CONFIG_MIKROTIK=y +CONFIG_MIKROTIK_RB_SYSFS=y +CONFIG_MIPS=y +CONFIG_MIPS_ASID_BITS=8 +CONFIG_MIPS_ASID_SHIFT=0 +CONFIG_MIPS_CLOCK_VSYSCALL=y +CONFIG_MIPS_CM=y +# CONFIG_MIPS_CMDLINE_BUILTIN_EXTEND is not set +# CONFIG_MIPS_CMDLINE_DTB_EXTEND is not set +# CONFIG_MIPS_CMDLINE_FROM_BOOTLOADER is not set +CONFIG_MIPS_CMDLINE_FROM_DTB=y +CONFIG_MIPS_CPC=y +CONFIG_MIPS_CPS=y +CONFIG_MIPS_CPS_CPUIDLE=y +# CONFIG_MIPS_CPS_NS16550_BOOL is not set +CONFIG_MIPS_CPS_PM=y +CONFIG_MIPS_CPU_SCACHE=y +CONFIG_MIPS_EBPF_JIT=y +# CONFIG_MIPS_ELF_APPENDED_DTB is not set +CONFIG_MIPS_GIC=y +CONFIG_MIPS_L1_CACHE_SHIFT=5 +CONFIG_MIPS_LD_CAN_LINK_VDSO=y +CONFIG_MIPS_MT=y +CONFIG_MIPS_MT_FPAFF=y +CONFIG_MIPS_MT_SMP=y +# CONFIG_MIPS_NO_APPENDED_DTB is not set +CONFIG_MIPS_NR_CPU_NR_MAP=4 +CONFIG_MIPS_PERF_SHARED_TC_COUNTERS=y +CONFIG_MIPS_RAW_APPENDED_DTB=y +CONFIG_MIPS_SPRAM=y +CONFIG_MODULES_USE_ELF_REL=y +CONFIG_MT7621_WDT=y +# CONFIG_MTD_CFI_INTELEXT is not set +CONFIG_MTD_CMDLINE_PARTS=y +CONFIG_MTD_NAND_CORE=y +CONFIG_MTD_NAND_ECC=y +CONFIG_MTD_NAND_ECC_SW_HAMMING=y +CONFIG_MTD_NAND_MT7621=y +CONFIG_MTD_NAND_MTK_BMT=y +CONFIG_MTD_PHYSMAP=y +CONFIG_MTD_RAW_NAND=y +CONFIG_MTD_ROUTERBOOT_PARTS=y +CONFIG_MTD_SPI_NOR=y +CONFIG_MTD_SPI_NOR_USE_VARIABLE_ERASE=y +CONFIG_MTD_SPLIT_FIT_FW=y +CONFIG_MTD_SPLIT_MINOR_FW=y +CONFIG_MTD_SPLIT_SEAMA_FW=y +CONFIG_MTD_SPLIT_TPLINK_FW=y +CONFIG_MTD_SPLIT_TRX_FW=y +CONFIG_MTD_SPLIT_UIMAGE_FW=y +CONFIG_MTD_UBI=y +CONFIG_MTD_UBI_BEB_LIMIT=20 +CONFIG_MTD_UBI_BLOCK=y +CONFIG_MTD_UBI_WL_THRESHOLD=4096 +CONFIG_MTD_VIRT_CONCAT=y +# CONFIG_MTK_HSDMA is not set +CONFIG_NEED_DMA_MAP_STATE=y +CONFIG_NET_DEVLINK=y +CONFIG_NET_DSA=y +CONFIG_NET_DSA_MT7530=y +CONFIG_NET_DSA_TAG_MTK=y +CONFIG_NET_FLOW_LIMIT=y +CONFIG_NET_MEDIATEK_SOC=y +CONFIG_NET_SELFTESTS=y +CONFIG_NET_SOCK_MSG=y +CONFIG_NET_SWITCHDEV=y +CONFIG_NET_VENDOR_MEDIATEK=y +# CONFIG_NET_VENDOR_RALINK is not set +CONFIG_NO_HZ_COMMON=y +CONFIG_NO_HZ_IDLE=y +CONFIG_NR_CPUS=4 +CONFIG_NVMEM=y +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_PADATA=y +CONFIG_PCI=y +CONFIG_PCIE_MT7621=y +CONFIG_PCI_DISABLE_COMMON_QUIRKS=y +CONFIG_PCI_DOMAINS=y +CONFIG_PCI_DOMAINS_GENERIC=y +CONFIG_PCI_DRIVERS_GENERIC=y +CONFIG_PERF_USE_VMALLOC=y +CONFIG_PGTABLE_LEVELS=2 +CONFIG_PHYLIB=y +CONFIG_PHYLINK=y +# CONFIG_PHY_INGENIC_USB is not set +CONFIG_PHY_MT7621_PCI=y +# CONFIG_PHY_PISTACHIO_USB is not set +# CONFIG_PHY_RALINK_USB is not set +CONFIG_PINCTRL=y +CONFIG_PINCTRL_AW9523=y +CONFIG_PINCTRL_MT7621=y +# CONFIG_PINCTRL_PISTACHIO is not set +CONFIG_PINCTRL_RALINK=y +CONFIG_PINCTRL_RT2880=y +# CONFIG_PINCTRL_SINGLE is not set +CONFIG_PINCTRL_SX150X=y +CONFIG_POWER_RESET=y +CONFIG_POWER_RESET_GPIO=y +CONFIG_POWER_SUPPLY=y +CONFIG_PTP_1588_CLOCK_OPTIONAL=y +CONFIG_QUEUED_RWLOCKS=y +CONFIG_QUEUED_SPINLOCKS=y +CONFIG_RALINK=y +# CONFIG_RALINK_WDT is not set +CONFIG_RATIONAL=y +CONFIG_REGMAP=y +CONFIG_REGMAP_I2C=y +CONFIG_REGMAP_MMIO=y +CONFIG_REGULATOR=y +CONFIG_REGULATOR_FIXED_VOLTAGE=y +CONFIG_RESET_CONTROLLER=y +CONFIG_RFS_ACCEL=y +CONFIG_RPS=y +CONFIG_RTC_CLASS=y +CONFIG_RTC_DRV_BQ32K=y +CONFIG_RTC_DRV_PCF8563=y +CONFIG_RTC_I2C_AND_SPI=y +CONFIG_RTC_MC146818_LIB=y +# CONFIG_SCHED_CORE is not set +CONFIG_SCHED_SMT=y +CONFIG_SERIAL_8250_NR_UARTS=3 +CONFIG_SERIAL_8250_RUNTIME_UARTS=3 +CONFIG_SERIAL_MCTRL_GPIO=y +CONFIG_SERIAL_OF_PLATFORM=y +CONFIG_SGL_ALLOC=y +CONFIG_SMP=y +CONFIG_SMP_UP=y +CONFIG_SOCK_RX_QUEUE_MAPPING=y +CONFIG_SOC_BUS=y +# CONFIG_SOC_MT7620 is not set +CONFIG_SOC_MT7621=y +# CONFIG_SOC_RT288X is not set +# CONFIG_SOC_RT305X is not set +# CONFIG_SOC_RT3883 is not set +CONFIG_SPI=y +CONFIG_SPI_MASTER=y +CONFIG_SPI_MEM=y +CONFIG_SPI_MT7621=y +# CONFIG_SPI_RT2880 is not set +CONFIG_SRCU=y +CONFIG_SWPHY=y +CONFIG_SYNC_R4K=y +CONFIG_SYSCTL_EXCEPTION_TRACE=y +CONFIG_SYS_HAS_CPU_MIPS32_R1=y +CONFIG_SYS_HAS_CPU_MIPS32_R2=y +CONFIG_SYS_HAS_EARLY_PRINTK=y +CONFIG_SYS_SUPPORTS_32BIT_KERNEL=y +CONFIG_SYS_SUPPORTS_ARBIT_HZ=y +CONFIG_SYS_SUPPORTS_HIGHMEM=y +CONFIG_SYS_SUPPORTS_HOTPLUG_CPU=y +CONFIG_SYS_SUPPORTS_LITTLE_ENDIAN=y +CONFIG_SYS_SUPPORTS_MIPS16=y +CONFIG_SYS_SUPPORTS_MIPS_CPS=y +CONFIG_SYS_SUPPORTS_MULTITHREADING=y +CONFIG_SYS_SUPPORTS_SCHED_SMT=y +CONFIG_SYS_SUPPORTS_SMP=y +CONFIG_SYS_SUPPORTS_ZBOOT=y +CONFIG_TARGET_ISA_REV=2 +# CONFIG_TEST_CLOCKSOURCE_WATCHDOG is not set +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_USB_SUPPORT=y +CONFIG_USE_OF=y +CONFIG_WATCHDOG_CORE=y +CONFIG_WEAK_ORDERING=y +CONFIG_XPS=y +CONFIG_XXHASH=y +CONFIG_ZLIB_DEFLATE=y +CONFIG_ZLIB_INFLATE=y +CONFIG_ZSTD_COMPRESS=y +CONFIG_ZSTD_DECOMPRESS=y diff --git a/target/linux/ramips/patches-5.15/100-PCI-mt7621-Add-MediaTek-MT7621-PCIe-host-controller-.patch b/target/linux/ramips/patches-5.15/100-PCI-mt7621-Add-MediaTek-MT7621-PCIe-host-controller-.patch new file mode 100644 index 0000000000..5aa69421b9 --- /dev/null +++ b/target/linux/ramips/patches-5.15/100-PCI-mt7621-Add-MediaTek-MT7621-PCIe-host-controller-.patch @@ -0,0 +1,1417 @@ +From: Sergio Paracuellos <sergio.paracuellos@gmail.com> +Date: Wed, 22 Sep 2021 07:00:34 +0200 +Subject: [PATCH] PCI: mt7621: Add MediaTek MT7621 PCIe host controller driver + +Add driver for the PCIe controller of the MT7621 SoC. + +[bhelgaas: rename from pci-mt7621.c to pcie-mt7621.c; also rename Kconfig +symbol from PCI_MT7621 to PCIE_MT7621] +Link: https://lore.kernel.org/r/20210922050035.18162-3-sergio.paracuellos@gmail.com +Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com> +Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> +Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> +Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> +--- + rename drivers/{staging/mt7621-pci/pci-mt7621.c => pci/controller/pcie-mt7621.c} (95%) + delete mode 100644 drivers/staging/mt7621-pci/Kconfig + delete mode 100644 drivers/staging/mt7621-pci/Makefile + delete mode 100644 drivers/staging/mt7621-pci/TODO + delete mode 100644 drivers/staging/mt7621-pci/mediatek,mt7621-pci.txt + +--- a/arch/mips/ralink/Kconfig ++++ b/arch/mips/ralink/Kconfig +@@ -51,7 +51,8 @@ choice + select SYS_SUPPORTS_HIGHMEM + select MIPS_GIC + select CLKSRC_MIPS_GIC +- select HAVE_PCI if PCI_MT7621 ++ select HAVE_PCI ++ select PCI_DRIVERS_GENERIC + select SOC_BUS + endchoice + +--- a/drivers/pci/controller/Kconfig ++++ b/drivers/pci/controller/Kconfig +@@ -312,6 +312,14 @@ config PCIE_HISI_ERR + Say Y here if you want error handling support + for the PCIe controller's errors on HiSilicon HIP SoCs + ++config PCIE_MT7621 ++ tristate "MediaTek MT7621 PCIe Controller" ++ depends on (RALINK && SOC_MT7621) || (MIPS && COMPILE_TEST) ++ select PHY_MT7621_PCI ++ default SOC_MT7621 ++ help ++ This selects a driver for the MediaTek MT7621 PCIe Controller. ++ + source "drivers/pci/controller/dwc/Kconfig" + source "drivers/pci/controller/mobiveil/Kconfig" + source "drivers/pci/controller/cadence/Kconfig" +--- a/drivers/pci/controller/Makefile ++++ b/drivers/pci/controller/Makefile +@@ -37,6 +37,8 @@ obj-$(CONFIG_VMD) += vmd.o + obj-$(CONFIG_PCIE_BRCMSTB) += pcie-brcmstb.o + obj-$(CONFIG_PCI_LOONGSON) += pci-loongson.o + obj-$(CONFIG_PCIE_HISI_ERR) += pcie-hisi-error.o ++obj-$(CONFIG_PCIE_MT7621) += pcie-mt7621.o ++ + # pcie-hisi.o quirks are needed even without CONFIG_PCIE_DW + obj-y += dwc/ + obj-y += mobiveil/ +--- a/drivers/staging/Kconfig ++++ b/drivers/staging/Kconfig +@@ -86,8 +86,6 @@ source "drivers/staging/vc04_services/Kc + + source "drivers/staging/pi433/Kconfig" + +-source "drivers/staging/mt7621-pci/Kconfig" +- + source "drivers/staging/mt7621-dma/Kconfig" + + source "drivers/staging/ralink-gdma/Kconfig" +--- a/drivers/staging/Makefile ++++ b/drivers/staging/Makefile +@@ -33,7 +33,6 @@ obj-$(CONFIG_KS7010) += ks7010/ + obj-$(CONFIG_GREYBUS) += greybus/ + obj-$(CONFIG_BCM2835_VCHIQ) += vc04_services/ + obj-$(CONFIG_PI433) += pi433/ +-obj-$(CONFIG_PCI_MT7621) += mt7621-pci/ + obj-$(CONFIG_SOC_MT7621) += mt7621-dma/ + obj-$(CONFIG_DMA_RALINK) += ralink-gdma/ + obj-$(CONFIG_SOC_MT7621) += mt7621-dts/ +--- a/drivers/staging/mt7621-pci/Kconfig ++++ /dev/null +@@ -1,8 +0,0 @@ +-# SPDX-License-Identifier: GPL-2.0 +-config PCI_MT7621 +- tristate "MediaTek MT7621 PCI Controller" +- depends on RALINK +- select PCI_DRIVERS_GENERIC +- help +- This selects a driver for the MediaTek MT7621 PCI Controller. +- +--- a/drivers/staging/mt7621-pci/Makefile ++++ /dev/null +@@ -1,2 +0,0 @@ +-# SPDX-License-Identifier: GPL-2.0 +-obj-$(CONFIG_PCI_MT7621) += pci-mt7621.o +--- a/drivers/staging/mt7621-pci/TODO ++++ /dev/null +@@ -1,4 +0,0 @@ +- +-- general code review and cleanup +- +-Cc: NeilBrown <neil@brown.name> +--- a/drivers/staging/mt7621-pci/mediatek,mt7621-pci.txt ++++ /dev/null +@@ -1,104 +0,0 @@ +-MediaTek MT7621 PCIe controller +- +-Required properties: +-- compatible: "mediatek,mt7621-pci" +-- device_type: Must be "pci" +-- reg: Base addresses and lengths of the PCIe subsys and root ports. +-- bus-range: Range of bus numbers associated with this controller. +-- #address-cells: Address representation for root ports (must be 3) +-- pinctrl-names : The pin control state names. +-- pinctrl-0: The "default" pinctrl state. +-- #size-cells: Size representation for root ports (must be 2) +-- ranges: Ranges for the PCI memory and I/O regions. +-- #interrupt-cells: Must be 1 +-- interrupt-map-mask and interrupt-map: Standard PCI IRQ mapping properties. +- Please refer to the standard PCI bus binding document for a more detailed +- explanation. +-- status: either "disabled" or "okay". +-- resets: Must contain an entry for each entry in reset-names. +- See ../reset/reset.txt for details. +-- reset-names: Must be "pcie0", "pcie1", "pcieN"... based on the number of +- root ports. +-- clocks: Must contain an entry for each entry in clock-names. +- See ../clocks/clock-bindings.txt for details. +-- clock-names: Must be "pcie0", "pcie1", "pcieN"... based on the number of +- root ports. +-- reset-gpios: GPIO specs for the reset pins. +- +-In addition, the device tree node must have sub-nodes describing each PCIe port +-interface, having the following mandatory properties: +- +-Required properties: +-- reg: Only the first four bytes are used to refer to the correct bus number +- and device number. +-- #address-cells: Must be 3 +-- #size-cells: Must be 2 +-- ranges: Sub-ranges distributed from the PCIe controller node. An empty +- property is sufficient. +-- bus-range: Range of bus numbers associated with this port. +- +-Example for MT7621: +- +- pcie: pcie@1e140000 { +- compatible = "mediatek,mt7621-pci"; +- reg = <0x1e140000 0x100 /* host-pci bridge registers */ +- 0x1e142000 0x100 /* pcie port 0 RC control registers */ +- 0x1e143000 0x100 /* pcie port 1 RC control registers */ +- 0x1e144000 0x100>; /* pcie port 2 RC control registers */ +- +- #address-cells = <3>; +- #size-cells = <2>; +- +- pinctrl-names = "default"; +- pinctrl-0 = <&pcie_pins>; +- +- device_type = "pci"; +- +- bus-range = <0 255>; +- ranges = < +- 0x02000000 0 0x00000000 0x60000000 0 0x10000000 /* pci memory */ +- 0x01000000 0 0x00000000 0x1e160000 0 0x00010000 /* io space */ +- >; +- +- #interrupt-cells = <1>; +- interrupt-map-mask = <0xF0000 0 0 1>; +- interrupt-map = <0x10000 0 0 1 &gic GIC_SHARED 4 IRQ_TYPE_LEVEL_HIGH>, +- <0x20000 0 0 1 &gic GIC_SHARED 24 IRQ_TYPE_LEVEL_HIGH>, +- <0x30000 0 0 1 &gic GIC_SHARED 25 IRQ_TYPE_LEVEL_HIGH>; +- +- status = "disabled"; +- +- resets = <&rstctrl 24 &rstctrl 25 &rstctrl 26>; +- reset-names = "pcie0", "pcie1", "pcie2"; +- clocks = <&clkctrl 24 &clkctrl 25 &clkctrl 26>; +- clock-names = "pcie0", "pcie1", "pcie2"; +- +- reset-gpios = <&gpio 19 GPIO_ACTIVE_LOW>, +- <&gpio 8 GPIO_ACTIVE_LOW>, +- <&gpio 7 GPIO_ACTIVE_LOW>; +- +- pcie@0,0 { +- reg = <0x0000 0 0 0 0>; +- #address-cells = <3>; +- #size-cells = <2>; +- ranges; +- bus-range = <0x00 0xff>; +- }; +- +- pcie@1,0 { +- reg = <0x0800 0 0 0 0>; +- #address-cells = <3>; +- #size-cells = <2>; +- ranges; +- bus-range = <0x00 0xff>; +- }; +- +- pcie@2,0 { +- reg = <0x1000 0 0 0 0>; +- #address-cells = <3>; +- #size-cells = <2>; +- ranges; +- bus-range = <0x00 0xff>; +- }; +- }; +- +--- a/drivers/staging/mt7621-pci/pci-mt7621.c ++++ /dev/null +@@ -1,600 +0,0 @@ +-// SPDX-License-Identifier: GPL-2.0+ +-/* +- * BRIEF MODULE DESCRIPTION +- * PCI init for Ralink RT2880 solution +- * +- * Copyright 2007 Ralink Inc. (bruce_chang@ralinktech.com.tw) +- * +- * May 2007 Bruce Chang +- * Initial Release +- * +- * May 2009 Bruce Chang +- * support RT2880/RT3883 PCIe +- * +- * May 2011 Bruce Chang +- * support RT6855/MT7620 PCIe +- */ +- +-#include <linux/bitops.h> +-#include <linux/clk.h> +-#include <linux/delay.h> +-#include <linux/gpio/consumer.h> +-#include <linux/module.h> +-#include <linux/of.h> +-#include <linux/of_address.h> +-#include <linux/of_pci.h> +-#include <linux/of_platform.h> +-#include <linux/pci.h> +-#include <linux/phy/phy.h> +-#include <linux/platform_device.h> +-#include <linux/reset.h> +-#include <linux/sys_soc.h> +- +-/* MediaTek specific configuration registers */ +-#define PCIE_FTS_NUM 0x70c +-#define PCIE_FTS_NUM_MASK GENMASK(15, 8) +-#define PCIE_FTS_NUM_L0(x) (((x) & 0xff) << 8) +- +-/* Host-PCI bridge registers */ +-#define RALINK_PCI_PCICFG_ADDR 0x0000 +-#define RALINK_PCI_PCIMSK_ADDR 0x000C +-#define RALINK_PCI_CONFIG_ADDR 0x0020 +-#define RALINK_PCI_CONFIG_DATA 0x0024 +-#define RALINK_PCI_MEMBASE 0x0028 +-#define RALINK_PCI_IOBASE 0x002C +- +-/* PCIe RC control registers */ +-#define RALINK_PCI_ID 0x0030 +-#define RALINK_PCI_CLASS 0x0034 +-#define RALINK_PCI_SUBID 0x0038 +-#define RALINK_PCI_STATUS 0x0050 +- +-/* Some definition values */ +-#define PCIE_REVISION_ID BIT(0) +-#define PCIE_CLASS_CODE (0x60400 << 8) +-#define PCIE_BAR_MAP_MAX GENMASK(30, 16) +-#define PCIE_BAR_ENABLE BIT(0) +-#define PCIE_PORT_INT_EN(x) BIT(20 + (x)) +-#define PCIE_PORT_LINKUP BIT(0) +-#define PCIE_PORT_CNT 3 +- +-#define PERST_DELAY_MS 100 +- +-/** +- * struct mt7621_pcie_port - PCIe port information +- * @base: I/O mapped register base +- * @list: port list +- * @pcie: pointer to PCIe host info +- * @clk: pointer to the port clock gate +- * @phy: pointer to PHY control block +- * @pcie_rst: pointer to port reset control +- * @gpio_rst: gpio reset +- * @slot: port slot +- * @enabled: indicates if port is enabled +- */ +-struct mt7621_pcie_port { +- void __iomem *base; +- struct list_head list; +- struct mt7621_pcie *pcie; +- struct clk *clk; +- struct phy *phy; +- struct reset_control *pcie_rst; +- struct gpio_desc *gpio_rst; +- u32 slot; +- bool enabled; +-}; +- +-/** +- * struct mt7621_pcie - PCIe host information +- * @base: IO Mapped Register Base +- * @dev: Pointer to PCIe device +- * @ports: pointer to PCIe port information +- * @resets_inverted: depends on chip revision +- * reset lines are inverted. +- */ +-struct mt7621_pcie { +- void __iomem *base; +- struct device *dev; +- struct list_head ports; +- bool resets_inverted; +-}; +- +-static inline u32 pcie_read(struct mt7621_pcie *pcie, u32 reg) +-{ +- return readl_relaxed(pcie->base + reg); +-} +- +-static inline void pcie_write(struct mt7621_pcie *pcie, u32 val, u32 reg) +-{ +- writel_relaxed(val, pcie->base + reg); +-} +- +-static inline void pcie_rmw(struct mt7621_pcie *pcie, u32 reg, u32 clr, u32 set) +-{ +- u32 val = readl_relaxed(pcie->base + reg); +- +- val &= ~clr; +- val |= set; +- writel_relaxed(val, pcie->base + reg); +-} +- +-static inline u32 pcie_port_read(struct mt7621_pcie_port *port, u32 reg) +-{ +- return readl_relaxed(port->base + reg); +-} +- +-static inline void pcie_port_write(struct mt7621_pcie_port *port, +- u32 val, u32 reg) +-{ +- writel_relaxed(val, port->base + reg); +-} +- +-static inline u32 mt7621_pci_get_cfgaddr(unsigned int bus, unsigned int slot, +- unsigned int func, unsigned int where) +-{ +- return (((where & 0xF00) >> 8) << 24) | (bus << 16) | (slot << 11) | +- (func << 8) | (where & 0xfc) | 0x80000000; +-} +- +-static void __iomem *mt7621_pcie_map_bus(struct pci_bus *bus, +- unsigned int devfn, int where) +-{ +- struct mt7621_pcie *pcie = bus->sysdata; +- u32 address = mt7621_pci_get_cfgaddr(bus->number, PCI_SLOT(devfn), +- PCI_FUNC(devfn), where); +- +- writel_relaxed(address, pcie->base + RALINK_PCI_CONFIG_ADDR); +- +- return pcie->base + RALINK_PCI_CONFIG_DATA + (where & 3); +-} +- +-struct pci_ops mt7621_pci_ops = { +- .map_bus = mt7621_pcie_map_bus, +- .read = pci_generic_config_read, +- .write = pci_generic_config_write, +-}; +- +-static u32 read_config(struct mt7621_pcie *pcie, unsigned int dev, u32 reg) +-{ +- u32 address = mt7621_pci_get_cfgaddr(0, dev, 0, reg); +- +- pcie_write(pcie, address, RALINK_PCI_CONFIG_ADDR); +- return pcie_read(pcie, RALINK_PCI_CONFIG_DATA); +-} +- +-static void write_config(struct mt7621_pcie *pcie, unsigned int dev, +- u32 reg, u32 val) +-{ +- u32 address = mt7621_pci_get_cfgaddr(0, dev, 0, reg); +- +- pcie_write(pcie, address, RALINK_PCI_CONFIG_ADDR); +- pcie_write(pcie, val, RALINK_PCI_CONFIG_DATA); +-} +- +-static inline void mt7621_rst_gpio_pcie_assert(struct mt7621_pcie_port *port) +-{ +- if (port->gpio_rst) +- gpiod_set_value(port->gpio_rst, 1); +-} +- +-static inline void mt7621_rst_gpio_pcie_deassert(struct mt7621_pcie_port *port) +-{ +- if (port->gpio_rst) +- gpiod_set_value(port->gpio_rst, 0); +-} +- +-static inline bool mt7621_pcie_port_is_linkup(struct mt7621_pcie_port *port) +-{ +- return (pcie_port_read(port, RALINK_PCI_STATUS) & PCIE_PORT_LINKUP) != 0; +-} +- +-static inline void mt7621_control_assert(struct mt7621_pcie_port *port) +-{ +- struct mt7621_pcie *pcie = port->pcie; +- +- if (pcie->resets_inverted) +- reset_control_assert(port->pcie_rst); +- else +- reset_control_deassert(port->pcie_rst); +-} +- +-static inline void mt7621_control_deassert(struct mt7621_pcie_port *port) +-{ +- struct mt7621_pcie *pcie = port->pcie; +- +- if (pcie->resets_inverted) +- reset_control_deassert(port->pcie_rst); +- else +- reset_control_assert(port->pcie_rst); +-} +- +-static int setup_cm_memory_region(struct pci_host_bridge *host) +-{ +- struct mt7621_pcie *pcie = pci_host_bridge_priv(host); +- struct device *dev = pcie->dev; +- struct resource_entry *entry; +- resource_size_t mask; +- +- entry = resource_list_first_type(&host->windows, IORESOURCE_MEM); +- if (!entry) { +- dev_err(dev, "Cannot get memory resource\n"); +- return -EINVAL; +- } +- +- if (mips_cps_numiocu(0)) { +- /* +- * FIXME: hardware doesn't accept mask values with 1s after +- * 0s (e.g. 0xffef), so it would be great to warn if that's +- * about to happen +- */ +- mask = ~(entry->res->end - entry->res->start); +- +- write_gcr_reg1_base(entry->res->start); +- write_gcr_reg1_mask(mask | CM_GCR_REGn_MASK_CMTGT_IOCU0); +- dev_info(dev, "PCI coherence region base: 0x%08llx, mask/settings: 0x%08llx\n", +- (unsigned long long)read_gcr_reg1_base(), +- (unsigned long long)read_gcr_reg1_mask()); +- } +- +- return 0; +-} +- +-static int mt7621_pcie_parse_port(struct mt7621_pcie *pcie, +- struct device_node *node, +- int slot) +-{ +- struct mt7621_pcie_port *port; +- struct device *dev = pcie->dev; +- struct platform_device *pdev = to_platform_device(dev); +- char name[10]; +- int err; +- +- port = devm_kzalloc(dev, sizeof(*port), GFP_KERNEL); +- if (!port) +- return -ENOMEM; +- +- port->base = devm_platform_ioremap_resource(pdev, slot + 1); +- if (IS_ERR(port->base)) +- return PTR_ERR(port->base); +- +- port->clk = devm_get_clk_from_child(dev, node, NULL); +- if (IS_ERR(port->clk)) { +- dev_err(dev, "failed to get pcie%d clock\n", slot); +- return PTR_ERR(port->clk); +- } +- +- port->pcie_rst = of_reset_control_get_exclusive(node, NULL); +- if (PTR_ERR(port->pcie_rst) == -EPROBE_DEFER) { +- dev_err(dev, "failed to get pcie%d reset control\n", slot); +- return PTR_ERR(port->pcie_rst); +- } +- +- snprintf(name, sizeof(name), "pcie-phy%d", slot); +- port->phy = devm_of_phy_get(dev, node, name); +- if (IS_ERR(port->phy)) { +- dev_err(dev, "failed to get pcie-phy%d\n", slot); +- err = PTR_ERR(port->phy); +- goto remove_reset; +- } +- +- port->gpio_rst = devm_gpiod_get_index_optional(dev, "reset", slot, +- GPIOD_OUT_LOW); +- if (IS_ERR(port->gpio_rst)) { +- dev_err(dev, "Failed to get GPIO for PCIe%d\n", slot); +- err = PTR_ERR(port->gpio_rst); +- goto remove_reset; +- } +- +- port->slot = slot; +- port->pcie = pcie; +- +- INIT_LIST_HEAD(&port->list); +- list_add_tail(&port->list, &pcie->ports); +- +- return 0; +- +-remove_reset: +- reset_control_put(port->pcie_rst); +- return err; +-} +- +-static int mt7621_pcie_parse_dt(struct mt7621_pcie *pcie) +-{ +- struct device *dev = pcie->dev; +- struct platform_device *pdev = to_platform_device(dev); +- struct device_node *node = dev->of_node, *child; +- int err; +- +- pcie->base = devm_platform_ioremap_resource(pdev, 0); +- if (IS_ERR(pcie->base)) +- return PTR_ERR(pcie->base); +- +- for_each_available_child_of_node(node, child) { +- int slot; +- +- err = of_pci_get_devfn(child); +- if (err < 0) { +- of_node_put(child); +- dev_err(dev, "failed to parse devfn: %d\n", err); +- return err; +- } +- +- slot = PCI_SLOT(err); +- +- err = mt7621_pcie_parse_port(pcie, child, slot); +- if (err) { +- of_node_put(child); +- return err; +- } +- } +- +- return 0; +-} +- +-static int mt7621_pcie_init_port(struct mt7621_pcie_port *port) +-{ +- struct mt7621_pcie *pcie = port->pcie; +- struct device *dev = pcie->dev; +- u32 slot = port->slot; +- int err; +- +- err = phy_init(port->phy); +- if (err) { +- dev_err(dev, "failed to initialize port%d phy\n", slot); +- return err; +- } +- +- err = phy_power_on(port->phy); +- if (err) { +- dev_err(dev, "failed to power on port%d phy\n", slot); +- phy_exit(port->phy); +- return err; +- } +- +- port->enabled = true; +- +- return 0; +-} +- +-static void mt7621_pcie_reset_assert(struct mt7621_pcie *pcie) +-{ +- struct mt7621_pcie_port *port; +- +- list_for_each_entry(port, &pcie->ports, list) { +- /* PCIe RC reset assert */ +- mt7621_control_assert(port); +- +- /* PCIe EP reset assert */ +- mt7621_rst_gpio_pcie_assert(port); +- } +- +- msleep(PERST_DELAY_MS); +-} +- +-static void mt7621_pcie_reset_rc_deassert(struct mt7621_pcie *pcie) +-{ +- struct mt7621_pcie_port *port; +- +- list_for_each_entry(port, &pcie->ports, list) +- mt7621_control_deassert(port); +-} +- +-static void mt7621_pcie_reset_ep_deassert(struct mt7621_pcie *pcie) +-{ +- struct mt7621_pcie_port *port; +- +- list_for_each_entry(port, &pcie->ports, list) +- mt7621_rst_gpio_pcie_deassert(port); +- +- msleep(PERST_DELAY_MS); +-} +- +-static int mt7621_pcie_init_ports(struct mt7621_pcie *pcie) +-{ +- struct device *dev = pcie->dev; +- struct mt7621_pcie_port *port, *tmp; +- u8 num_disabled = 0; +- int err; +- +- mt7621_pcie_reset_assert(pcie); +- mt7621_pcie_reset_rc_deassert(pcie); +- +- list_for_each_entry_safe(port, tmp, &pcie->ports, list) { +- u32 slot = port->slot; +- +- if (slot == 1) { +- port->enabled = true; +- continue; +- } +- +- err = mt7621_pcie_init_port(port); +- if (err) { +- dev_err(dev, "Initiating port %d failed\n", slot); +- list_del(&port->list); +- } +- } +- +- mt7621_pcie_reset_ep_deassert(pcie); +- +- tmp = NULL; +- list_for_each_entry(port, &pcie->ports, list) { +- u32 slot = port->slot; +- +- if (!mt7621_pcie_port_is_linkup(port)) { +- dev_err(dev, "pcie%d no card, disable it (RST & CLK)\n", +- slot); +- mt7621_control_assert(port); +- port->enabled = false; +- num_disabled++; +- +- if (slot == 0) { +- tmp = port; +- continue; +- } +- +- if (slot == 1 && tmp && !tmp->enabled) +- phy_power_off(tmp->phy); +- } +- } +- +- return (num_disabled != PCIE_PORT_CNT) ? 0 : -ENODEV; +-} +- +-static void mt7621_pcie_enable_port(struct mt7621_pcie_port *port) +-{ +- struct mt7621_pcie *pcie = port->pcie; +- u32 slot = port->slot; +- u32 val; +- +- /* enable pcie interrupt */ +- val = pcie_read(pcie, RALINK_PCI_PCIMSK_ADDR); +- val |= PCIE_PORT_INT_EN(slot); +- pcie_write(pcie, val, RALINK_PCI_PCIMSK_ADDR); +- +- /* map 2G DDR region */ +- pcie_port_write(port, PCIE_BAR_MAP_MAX | PCIE_BAR_ENABLE, +- PCI_BASE_ADDRESS_0); +- +- /* configure class code and revision ID */ +- pcie_port_write(port, PCIE_CLASS_CODE | PCIE_REVISION_ID, +- RALINK_PCI_CLASS); +- +- /* configure RC FTS number to 250 when it leaves L0s */ +- val = read_config(pcie, slot, PCIE_FTS_NUM); +- val &= ~PCIE_FTS_NUM_MASK; +- val |= PCIE_FTS_NUM_L0(0x50); +- write_config(pcie, slot, PCIE_FTS_NUM, val); +-} +- +-static int mt7621_pcie_enable_ports(struct pci_host_bridge *host) +-{ +- struct mt7621_pcie *pcie = pci_host_bridge_priv(host); +- struct device *dev = pcie->dev; +- struct mt7621_pcie_port *port; +- struct resource_entry *entry; +- int err; +- +- entry = resource_list_first_type(&host->windows, IORESOURCE_IO); +- if (!entry) { +- dev_err(dev, "Cannot get io resource\n"); +- return -EINVAL; +- } +- +- /* Setup MEMWIN and IOWIN */ +- pcie_write(pcie, 0xffffffff, RALINK_PCI_MEMBASE); +- pcie_write(pcie, entry->res->start, RALINK_PCI_IOBASE); +- +- list_for_each_entry(port, &pcie->ports, list) { +- if (port->enabled) { +- err = clk_prepare_enable(port->clk); +- if (err) { +- dev_err(dev, "enabling clk pcie%d\n", +- port->slot); +- return err; +- } +- +- mt7621_pcie_enable_port(port); +- dev_info(dev, "PCIE%d enabled\n", port->slot); +- } +- } +- +- return 0; +-} +- +-static int mt7621_pcie_register_host(struct pci_host_bridge *host) +-{ +- struct mt7621_pcie *pcie = pci_host_bridge_priv(host); +- +- host->ops = &mt7621_pci_ops; +- host->sysdata = pcie; +- return pci_host_probe(host); +-} +- +-static const struct soc_device_attribute mt7621_pci_quirks_match[] = { +- { .soc_id = "mt7621", .revision = "E2" } +-}; +- +-static int mt7621_pci_probe(struct platform_device *pdev) +-{ +- struct device *dev = &pdev->dev; +- const struct soc_device_attribute *attr; +- struct mt7621_pcie_port *port; +- struct mt7621_pcie *pcie; +- struct pci_host_bridge *bridge; +- int err; +- +- if (!dev->of_node) +- return -ENODEV; +- +- bridge = devm_pci_alloc_host_bridge(dev, sizeof(*pcie)); +- if (!bridge) +- return -ENOMEM; +- +- pcie = pci_host_bridge_priv(bridge); +- pcie->dev = dev; +- platform_set_drvdata(pdev, pcie); +- INIT_LIST_HEAD(&pcie->ports); +- +- attr = soc_device_match(mt7621_pci_quirks_match); +- if (attr) +- pcie->resets_inverted = true; +- +- err = mt7621_pcie_parse_dt(pcie); +- if (err) { +- dev_err(dev, "Parsing DT failed\n"); +- return err; +- } +- +- err = mt7621_pcie_init_ports(pcie); +- if (err) { +- dev_err(dev, "Nothing connected in virtual bridges\n"); +- return 0; +- } +- +- err = mt7621_pcie_enable_ports(bridge); +- if (err) { +- dev_err(dev, "Error enabling pcie ports\n"); +- goto remove_resets; +- } +- +- err = setup_cm_memory_region(bridge); +- if (err) { +- dev_err(dev, "Error setting up iocu mem regions\n"); +- goto remove_resets; +- } +- +- return mt7621_pcie_register_host(bridge); +- +-remove_resets: +- list_for_each_entry(port, &pcie->ports, list) +- reset_control_put(port->pcie_rst); +- +- return err; +-} +- +-static int mt7621_pci_remove(struct platform_device *pdev) +-{ +- struct mt7621_pcie *pcie = platform_get_drvdata(pdev); +- struct mt7621_pcie_port *port; +- +- list_for_each_entry(port, &pcie->ports, list) +- reset_control_put(port->pcie_rst); +- +- return 0; +-} +- +-static const struct of_device_id mt7621_pci_ids[] = { +- { .compatible = "mediatek,mt7621-pci" }, +- {}, +-}; +-MODULE_DEVICE_TABLE(of, mt7621_pci_ids); +- +-static struct platform_driver mt7621_pci_driver = { +- .probe = mt7621_pci_probe, +- .remove = mt7621_pci_remove, +- .driver = { +- .name = "mt7621-pci", +- .of_match_table = of_match_ptr(mt7621_pci_ids), +- }, +-}; +-builtin_platform_driver(mt7621_pci_driver); +--- /dev/null ++++ b/drivers/pci/controller/pcie-mt7621.c +@@ -0,0 +1,600 @@ ++// SPDX-License-Identifier: GPL-2.0+ ++/* ++ * BRIEF MODULE DESCRIPTION ++ * PCI init for Ralink RT2880 solution ++ * ++ * Copyright 2007 Ralink Inc. (bruce_chang@ralinktech.com.tw) ++ * ++ * May 2007 Bruce Chang ++ * Initial Release ++ * ++ * May 2009 Bruce Chang ++ * support RT2880/RT3883 PCIe ++ * ++ * May 2011 Bruce Chang ++ * support RT6855/MT7620 PCIe ++ */ ++ ++#include <linux/bitops.h> ++#include <linux/clk.h> ++#include <linux/delay.h> ++#include <linux/gpio/consumer.h> ++#include <linux/module.h> ++#include <linux/of.h> ++#include <linux/of_address.h> ++#include <linux/of_pci.h> ++#include <linux/of_platform.h> ++#include <linux/pci.h> ++#include <linux/phy/phy.h> ++#include <linux/platform_device.h> ++#include <linux/reset.h> ++#include <linux/sys_soc.h> ++ ++/* MediaTek-specific configuration registers */ ++#define PCIE_FTS_NUM 0x70c ++#define PCIE_FTS_NUM_MASK GENMASK(15, 8) ++#define PCIE_FTS_NUM_L0(x) (((x) & 0xff) << 8) ++ ++/* Host-PCI bridge registers */ ++#define RALINK_PCI_PCICFG_ADDR 0x0000 ++#define RALINK_PCI_PCIMSK_ADDR 0x000c ++#define RALINK_PCI_CONFIG_ADDR 0x0020 ++#define RALINK_PCI_CONFIG_DATA 0x0024 ++#define RALINK_PCI_MEMBASE 0x0028 ++#define RALINK_PCI_IOBASE 0x002c ++ ++/* PCIe RC control registers */ ++#define RALINK_PCI_ID 0x0030 ++#define RALINK_PCI_CLASS 0x0034 ++#define RALINK_PCI_SUBID 0x0038 ++#define RALINK_PCI_STATUS 0x0050 ++ ++/* Some definition values */ ++#define PCIE_REVISION_ID BIT(0) ++#define PCIE_CLASS_CODE (0x60400 << 8) ++#define PCIE_BAR_MAP_MAX GENMASK(30, 16) ++#define PCIE_BAR_ENABLE BIT(0) ++#define PCIE_PORT_INT_EN(x) BIT(20 + (x)) ++#define PCIE_PORT_LINKUP BIT(0) ++#define PCIE_PORT_CNT 3 ++ ++#define PERST_DELAY_MS 100 ++ ++/** ++ * struct mt7621_pcie_port - PCIe port information ++ * @base: I/O mapped register base ++ * @list: port list ++ * @pcie: pointer to PCIe host info ++ * @clk: pointer to the port clock gate ++ * @phy: pointer to PHY control block ++ * @pcie_rst: pointer to port reset control ++ * @gpio_rst: gpio reset ++ * @slot: port slot ++ * @enabled: indicates if port is enabled ++ */ ++struct mt7621_pcie_port { ++ void __iomem *base; ++ struct list_head list; ++ struct mt7621_pcie *pcie; ++ struct clk *clk; ++ struct phy *phy; ++ struct reset_control *pcie_rst; ++ struct gpio_desc *gpio_rst; ++ u32 slot; ++ bool enabled; ++}; ++ ++/** ++ * struct mt7621_pcie - PCIe host information ++ * @base: IO Mapped Register Base ++ * @dev: Pointer to PCIe device ++ * @ports: pointer to PCIe port information ++ * @resets_inverted: depends on chip revision ++ * reset lines are inverted. ++ */ ++struct mt7621_pcie { ++ void __iomem *base; ++ struct device *dev; ++ struct list_head ports; ++ bool resets_inverted; ++}; ++ ++static inline u32 pcie_read(struct mt7621_pcie *pcie, u32 reg) ++{ ++ return readl_relaxed(pcie->base + reg); ++} ++ ++static inline void pcie_write(struct mt7621_pcie *pcie, u32 val, u32 reg) ++{ ++ writel_relaxed(val, pcie->base + reg); ++} ++ ++static inline void pcie_rmw(struct mt7621_pcie *pcie, u32 reg, u32 clr, u32 set) ++{ ++ u32 val = readl_relaxed(pcie->base + reg); ++ ++ val &= ~clr; ++ val |= set; ++ writel_relaxed(val, pcie->base + reg); ++} ++ ++static inline u32 pcie_port_read(struct mt7621_pcie_port *port, u32 reg) ++{ ++ return readl_relaxed(port->base + reg); ++} ++ ++static inline void pcie_port_write(struct mt7621_pcie_port *port, ++ u32 val, u32 reg) ++{ ++ writel_relaxed(val, port->base + reg); ++} ++ ++static inline u32 mt7621_pci_get_cfgaddr(unsigned int bus, unsigned int slot, ++ unsigned int func, unsigned int where) ++{ ++ return (((where & 0xf00) >> 8) << 24) | (bus << 16) | (slot << 11) | ++ (func << 8) | (where & 0xfc) | 0x80000000; ++} ++ ++static void __iomem *mt7621_pcie_map_bus(struct pci_bus *bus, ++ unsigned int devfn, int where) ++{ ++ struct mt7621_pcie *pcie = bus->sysdata; ++ u32 address = mt7621_pci_get_cfgaddr(bus->number, PCI_SLOT(devfn), ++ PCI_FUNC(devfn), where); ++ ++ writel_relaxed(address, pcie->base + RALINK_PCI_CONFIG_ADDR); ++ ++ return pcie->base + RALINK_PCI_CONFIG_DATA + (where & 3); ++} ++ ++struct pci_ops mt7621_pci_ops = { ++ .map_bus = mt7621_pcie_map_bus, ++ .read = pci_generic_config_read, ++ .write = pci_generic_config_write, ++}; ++ ++static u32 read_config(struct mt7621_pcie *pcie, unsigned int dev, u32 reg) ++{ ++ u32 address = mt7621_pci_get_cfgaddr(0, dev, 0, reg); ++ ++ pcie_write(pcie, address, RALINK_PCI_CONFIG_ADDR); ++ return pcie_read(pcie, RALINK_PCI_CONFIG_DATA); ++} ++ ++static void write_config(struct mt7621_pcie *pcie, unsigned int dev, ++ u32 reg, u32 val) ++{ ++ u32 address = mt7621_pci_get_cfgaddr(0, dev, 0, reg); ++ ++ pcie_write(pcie, address, RALINK_PCI_CONFIG_ADDR); ++ pcie_write(pcie, val, RALINK_PCI_CONFIG_DATA); ++} ++ ++static inline void mt7621_rst_gpio_pcie_assert(struct mt7621_pcie_port *port) ++{ ++ if (port->gpio_rst) ++ gpiod_set_value(port->gpio_rst, 1); ++} ++ ++static inline void mt7621_rst_gpio_pcie_deassert(struct mt7621_pcie_port *port) ++{ ++ if (port->gpio_rst) ++ gpiod_set_value(port->gpio_rst, 0); ++} ++ ++static inline bool mt7621_pcie_port_is_linkup(struct mt7621_pcie_port *port) ++{ ++ return (pcie_port_read(port, RALINK_PCI_STATUS) & PCIE_PORT_LINKUP) != 0; ++} ++ ++static inline void mt7621_control_assert(struct mt7621_pcie_port *port) ++{ ++ struct mt7621_pcie *pcie = port->pcie; ++ ++ if (pcie->resets_inverted) ++ reset_control_assert(port->pcie_rst); ++ else ++ reset_control_deassert(port->pcie_rst); ++} ++ ++static inline void mt7621_control_deassert(struct mt7621_pcie_port *port) ++{ ++ struct mt7621_pcie *pcie = port->pcie; ++ ++ if (pcie->resets_inverted) ++ reset_control_deassert(port->pcie_rst); ++ else ++ reset_control_assert(port->pcie_rst); ++} ++ ++static int setup_cm_memory_region(struct pci_host_bridge *host) ++{ ++ struct mt7621_pcie *pcie = pci_host_bridge_priv(host); ++ struct device *dev = pcie->dev; ++ struct resource_entry *entry; ++ resource_size_t mask; ++ ++ entry = resource_list_first_type(&host->windows, IORESOURCE_MEM); ++ if (!entry) { ++ dev_err(dev, "cannot get memory resource\n"); ++ return -EINVAL; ++ } ++ ++ if (mips_cps_numiocu(0)) { ++ /* ++ * FIXME: hardware doesn't accept mask values with 1s after ++ * 0s (e.g. 0xffef), so it would be great to warn if that's ++ * about to happen ++ */ ++ mask = ~(entry->res->end - entry->res->start); ++ ++ write_gcr_reg1_base(entry->res->start); ++ write_gcr_reg1_mask(mask | CM_GCR_REGn_MASK_CMTGT_IOCU0); ++ dev_info(dev, "PCI coherence region base: 0x%08llx, mask/settings: 0x%08llx\n", ++ (unsigned long long)read_gcr_reg1_base(), ++ (unsigned long long)read_gcr_reg1_mask()); ++ } ++ ++ return 0; ++} ++ ++static int mt7621_pcie_parse_port(struct mt7621_pcie *pcie, ++ struct device_node *node, ++ int slot) ++{ ++ struct mt7621_pcie_port *port; ++ struct device *dev = pcie->dev; ++ struct platform_device *pdev = to_platform_device(dev); ++ char name[10]; ++ int err; ++ ++ port = devm_kzalloc(dev, sizeof(*port), GFP_KERNEL); ++ if (!port) ++ return -ENOMEM; ++ ++ port->base = devm_platform_ioremap_resource(pdev, slot + 1); ++ if (IS_ERR(port->base)) ++ return PTR_ERR(port->base); ++ ++ port->clk = devm_get_clk_from_child(dev, node, NULL); ++ if (IS_ERR(port->clk)) { ++ dev_err(dev, "failed to get pcie%d clock\n", slot); ++ return PTR_ERR(port->clk); ++ } ++ ++ port->pcie_rst = of_reset_control_get_exclusive(node, NULL); ++ if (PTR_ERR(port->pcie_rst) == -EPROBE_DEFER) { ++ dev_err(dev, "failed to get pcie%d reset control\n", slot); ++ return PTR_ERR(port->pcie_rst); ++ } ++ ++ snprintf(name, sizeof(name), "pcie-phy%d", slot); ++ port->phy = devm_of_phy_get(dev, node, name); ++ if (IS_ERR(port->phy)) { ++ dev_err(dev, "failed to get pcie-phy%d\n", slot); ++ err = PTR_ERR(port->phy); ++ goto remove_reset; ++ } ++ ++ port->gpio_rst = devm_gpiod_get_index_optional(dev, "reset", slot, ++ GPIOD_OUT_LOW); ++ if (IS_ERR(port->gpio_rst)) { ++ dev_err(dev, "failed to get GPIO for PCIe%d\n", slot); ++ err = PTR_ERR(port->gpio_rst); ++ goto remove_reset; ++ } ++ ++ port->slot = slot; ++ port->pcie = pcie; ++ ++ INIT_LIST_HEAD(&port->list); ++ list_add_tail(&port->list, &pcie->ports); ++ ++ return 0; ++ ++remove_reset: ++ reset_control_put(port->pcie_rst); ++ return err; ++} ++ ++static int mt7621_pcie_parse_dt(struct mt7621_pcie *pcie) ++{ ++ struct device *dev = pcie->dev; ++ struct platform_device *pdev = to_platform_device(dev); ++ struct device_node *node = dev->of_node, *child; ++ int err; ++ ++ pcie->base = devm_platform_ioremap_resource(pdev, 0); ++ if (IS_ERR(pcie->base)) ++ return PTR_ERR(pcie->base); ++ ++ for_each_available_child_of_node(node, child) { ++ int slot; ++ ++ err = of_pci_get_devfn(child); ++ if (err < 0) { ++ of_node_put(child); ++ dev_err(dev, "failed to parse devfn: %d\n", err); ++ return err; ++ } ++ ++ slot = PCI_SLOT(err); ++ ++ err = mt7621_pcie_parse_port(pcie, child, slot); ++ if (err) { ++ of_node_put(child); ++ return err; ++ } ++ } ++ ++ return 0; ++} ++ ++static int mt7621_pcie_init_port(struct mt7621_pcie_port *port) ++{ ++ struct mt7621_pcie *pcie = port->pcie; ++ struct device *dev = pcie->dev; ++ u32 slot = port->slot; ++ int err; ++ ++ err = phy_init(port->phy); ++ if (err) { ++ dev_err(dev, "failed to initialize port%d phy\n", slot); ++ return err; ++ } ++ ++ err = phy_power_on(port->phy); ++ if (err) { ++ dev_err(dev, "failed to power on port%d phy\n", slot); ++ phy_exit(port->phy); ++ return err; ++ } ++ ++ port->enabled = true; ++ ++ return 0; ++} ++ ++static void mt7621_pcie_reset_assert(struct mt7621_pcie *pcie) ++{ ++ struct mt7621_pcie_port *port; ++ ++ list_for_each_entry(port, &pcie->ports, list) { ++ /* PCIe RC reset assert */ ++ mt7621_control_assert(port); ++ ++ /* PCIe EP reset assert */ ++ mt7621_rst_gpio_pcie_assert(port); ++ } ++ ++ msleep(PERST_DELAY_MS); ++} ++ ++static void mt7621_pcie_reset_rc_deassert(struct mt7621_pcie *pcie) ++{ ++ struct mt7621_pcie_port *port; ++ ++ list_for_each_entry(port, &pcie->ports, list) ++ mt7621_control_deassert(port); ++} ++ ++static void mt7621_pcie_reset_ep_deassert(struct mt7621_pcie *pcie) ++{ ++ struct mt7621_pcie_port *port; ++ ++ list_for_each_entry(port, &pcie->ports, list) ++ mt7621_rst_gpio_pcie_deassert(port); ++ ++ msleep(PERST_DELAY_MS); ++} ++ ++static int mt7621_pcie_init_ports(struct mt7621_pcie *pcie) ++{ ++ struct device *dev = pcie->dev; ++ struct mt7621_pcie_port *port, *tmp; ++ u8 num_disabled = 0; ++ int err; ++ ++ mt7621_pcie_reset_assert(pcie); ++ mt7621_pcie_reset_rc_deassert(pcie); ++ ++ list_for_each_entry_safe(port, tmp, &pcie->ports, list) { ++ u32 slot = port->slot; ++ ++ if (slot == 1) { ++ port->enabled = true; ++ continue; ++ } ++ ++ err = mt7621_pcie_init_port(port); ++ if (err) { ++ dev_err(dev, "initializing port %d failed\n", slot); ++ list_del(&port->list); ++ } ++ } ++ ++ mt7621_pcie_reset_ep_deassert(pcie); ++ ++ tmp = NULL; ++ list_for_each_entry(port, &pcie->ports, list) { ++ u32 slot = port->slot; ++ ++ if (!mt7621_pcie_port_is_linkup(port)) { ++ dev_err(dev, "pcie%d no card, disable it (RST & CLK)\n", ++ slot); ++ mt7621_control_assert(port); ++ port->enabled = false; ++ num_disabled++; ++ ++ if (slot == 0) { ++ tmp = port; ++ continue; ++ } ++ ++ if (slot == 1 && tmp && !tmp->enabled) ++ phy_power_off(tmp->phy); ++ } ++ } ++ ++ return (num_disabled != PCIE_PORT_CNT) ? 0 : -ENODEV; ++} ++ ++static void mt7621_pcie_enable_port(struct mt7621_pcie_port *port) ++{ ++ struct mt7621_pcie *pcie = port->pcie; ++ u32 slot = port->slot; ++ u32 val; ++ ++ /* enable pcie interrupt */ ++ val = pcie_read(pcie, RALINK_PCI_PCIMSK_ADDR); ++ val |= PCIE_PORT_INT_EN(slot); ++ pcie_write(pcie, val, RALINK_PCI_PCIMSK_ADDR); ++ ++ /* map 2G DDR region */ ++ pcie_port_write(port, PCIE_BAR_MAP_MAX | PCIE_BAR_ENABLE, ++ PCI_BASE_ADDRESS_0); ++ ++ /* configure class code and revision ID */ ++ pcie_port_write(port, PCIE_CLASS_CODE | PCIE_REVISION_ID, ++ RALINK_PCI_CLASS); ++ ++ /* configure RC FTS number to 250 when it leaves L0s */ ++ val = read_config(pcie, slot, PCIE_FTS_NUM); ++ val &= ~PCIE_FTS_NUM_MASK; ++ val |= PCIE_FTS_NUM_L0(0x50); ++ write_config(pcie, slot, PCIE_FTS_NUM, val); ++} ++ ++static int mt7621_pcie_enable_ports(struct pci_host_bridge *host) ++{ ++ struct mt7621_pcie *pcie = pci_host_bridge_priv(host); ++ struct device *dev = pcie->dev; ++ struct mt7621_pcie_port *port; ++ struct resource_entry *entry; ++ int err; ++ ++ entry = resource_list_first_type(&host->windows, IORESOURCE_IO); ++ if (!entry) { ++ dev_err(dev, "cannot get io resource\n"); ++ return -EINVAL; ++ } ++ ++ /* Setup MEMWIN and IOWIN */ ++ pcie_write(pcie, 0xffffffff, RALINK_PCI_MEMBASE); ++ pcie_write(pcie, entry->res->start, RALINK_PCI_IOBASE); ++ ++ list_for_each_entry(port, &pcie->ports, list) { ++ if (port->enabled) { ++ err = clk_prepare_enable(port->clk); ++ if (err) { ++ dev_err(dev, "enabling clk pcie%d\n", ++ port->slot); ++ return err; ++ } ++ ++ mt7621_pcie_enable_port(port); ++ dev_info(dev, "PCIE%d enabled\n", port->slot); ++ } ++ } ++ ++ return 0; ++} ++ ++static int mt7621_pcie_register_host(struct pci_host_bridge *host) ++{ ++ struct mt7621_pcie *pcie = pci_host_bridge_priv(host); ++ ++ host->ops = &mt7621_pci_ops; ++ host->sysdata = pcie; ++ return pci_host_probe(host); ++} ++ ++static const struct soc_device_attribute mt7621_pci_quirks_match[] = { ++ { .soc_id = "mt7621", .revision = "E2" } ++}; ++ ++static int mt7621_pci_probe(struct platform_device *pdev) ++{ ++ struct device *dev = &pdev->dev; ++ const struct soc_device_attribute *attr; ++ struct mt7621_pcie_port *port; ++ struct mt7621_pcie *pcie; ++ struct pci_host_bridge *bridge; ++ int err; ++ ++ if (!dev->of_node) ++ return -ENODEV; ++ ++ bridge = devm_pci_alloc_host_bridge(dev, sizeof(*pcie)); ++ if (!bridge) ++ return -ENOMEM; ++ ++ pcie = pci_host_bridge_priv(bridge); ++ pcie->dev = dev; ++ platform_set_drvdata(pdev, pcie); ++ INIT_LIST_HEAD(&pcie->ports); ++ ++ attr = soc_device_match(mt7621_pci_quirks_match); ++ if (attr) ++ pcie->resets_inverted = true; ++ ++ err = mt7621_pcie_parse_dt(pcie); ++ if (err) { ++ dev_err(dev, "parsing DT failed\n"); ++ return err; ++ } ++ ++ err = mt7621_pcie_init_ports(pcie); ++ if (err) { ++ dev_err(dev, "nothing connected in virtual bridges\n"); ++ return 0; ++ } ++ ++ err = mt7621_pcie_enable_ports(bridge); ++ if (err) { ++ dev_err(dev, "error enabling pcie ports\n"); ++ goto remove_resets; ++ } ++ ++ err = setup_cm_memory_region(bridge); ++ if (err) { ++ dev_err(dev, "error setting up iocu mem regions\n"); ++ goto remove_resets; ++ } ++ ++ return mt7621_pcie_register_host(bridge); ++ ++remove_resets: ++ list_for_each_entry(port, &pcie->ports, list) ++ reset_control_put(port->pcie_rst); ++ ++ return err; ++} ++ ++static int mt7621_pci_remove(struct platform_device *pdev) ++{ ++ struct mt7621_pcie *pcie = platform_get_drvdata(pdev); ++ struct mt7621_pcie_port *port; ++ ++ list_for_each_entry(port, &pcie->ports, list) ++ reset_control_put(port->pcie_rst); ++ ++ return 0; ++} ++ ++static const struct of_device_id mt7621_pci_ids[] = { ++ { .compatible = "mediatek,mt7621-pci" }, ++ {}, ++}; ++MODULE_DEVICE_TABLE(of, mt7621_pci_ids); ++ ++static struct platform_driver mt7621_pci_driver = { ++ .probe = mt7621_pci_probe, ++ .remove = mt7621_pci_remove, ++ .driver = { ++ .name = "mt7621-pci", ++ .of_match_table = of_match_ptr(mt7621_pci_ids), ++ }, ++}; ++builtin_platform_driver(mt7621_pci_driver); diff --git a/target/linux/ramips/patches-5.15/101-PCI-mt7621-Rename-mt7621_pci_-to-mt7621_pcie_.patch b/target/linux/ramips/patches-5.15/101-PCI-mt7621-Rename-mt7621_pci_-to-mt7621_pcie_.patch new file mode 100644 index 0000000000..916477511d --- /dev/null +++ b/target/linux/ramips/patches-5.15/101-PCI-mt7621-Rename-mt7621_pci_-to-mt7621_pcie_.patch @@ -0,0 +1,134 @@ +From: Bjorn Helgaas <bhelgaas@google.com> +Date: Wed, 22 Dec 2021 19:10:48 -0600 +Subject: [PATCH] PCI: mt7621: Rename mt7621_pci_ to mt7621_pcie_ + +Rename mt7621_pci_* structs and functions to mt7621_pcie_* for consistency +with the rest of the file. + +Link: https://lore.kernel.org/r/20211223011054.1227810-18-helgaas@kernel.org +Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> +Reviewed-by: Sergio Paracuellos <sergio.paracuellos@gmail.com> +Cc: Matthias Brugger <matthias.bgg@gmail.com> +--- + +--- a/drivers/pci/controller/pcie-mt7621.c ++++ b/drivers/pci/controller/pcie-mt7621.c +@@ -93,8 +93,8 @@ struct mt7621_pcie_port { + * reset lines are inverted. + */ + struct mt7621_pcie { +- void __iomem *base; + struct device *dev; ++ void __iomem *base; + struct list_head ports; + bool resets_inverted; + }; +@@ -129,7 +129,7 @@ static inline void pcie_port_write(struc + writel_relaxed(val, port->base + reg); + } + +-static inline u32 mt7621_pci_get_cfgaddr(unsigned int bus, unsigned int slot, ++static inline u32 mt7621_pcie_get_cfgaddr(unsigned int bus, unsigned int slot, + unsigned int func, unsigned int where) + { + return (((where & 0xf00) >> 8) << 24) | (bus << 16) | (slot << 11) | +@@ -140,7 +140,7 @@ static void __iomem *mt7621_pcie_map_bus + unsigned int devfn, int where) + { + struct mt7621_pcie *pcie = bus->sysdata; +- u32 address = mt7621_pci_get_cfgaddr(bus->number, PCI_SLOT(devfn), ++ u32 address = mt7621_pcie_get_cfgaddr(bus->number, PCI_SLOT(devfn), + PCI_FUNC(devfn), where); + + writel_relaxed(address, pcie->base + RALINK_PCI_CONFIG_ADDR); +@@ -148,7 +148,7 @@ static void __iomem *mt7621_pcie_map_bus + return pcie->base + RALINK_PCI_CONFIG_DATA + (where & 3); + } + +-struct pci_ops mt7621_pci_ops = { ++struct pci_ops mt7621_pcie_ops = { + .map_bus = mt7621_pcie_map_bus, + .read = pci_generic_config_read, + .write = pci_generic_config_write, +@@ -156,7 +156,7 @@ struct pci_ops mt7621_pci_ops = { + + static u32 read_config(struct mt7621_pcie *pcie, unsigned int dev, u32 reg) + { +- u32 address = mt7621_pci_get_cfgaddr(0, dev, 0, reg); ++ u32 address = mt7621_pcie_get_cfgaddr(0, dev, 0, reg); + + pcie_write(pcie, address, RALINK_PCI_CONFIG_ADDR); + return pcie_read(pcie, RALINK_PCI_CONFIG_DATA); +@@ -165,7 +165,7 @@ static u32 read_config(struct mt7621_pci + static void write_config(struct mt7621_pcie *pcie, unsigned int dev, + u32 reg, u32 val) + { +- u32 address = mt7621_pci_get_cfgaddr(0, dev, 0, reg); ++ u32 address = mt7621_pcie_get_cfgaddr(0, dev, 0, reg); + + pcie_write(pcie, address, RALINK_PCI_CONFIG_ADDR); + pcie_write(pcie, val, RALINK_PCI_CONFIG_DATA); +@@ -505,16 +505,16 @@ static int mt7621_pcie_register_host(str + { + struct mt7621_pcie *pcie = pci_host_bridge_priv(host); + +- host->ops = &mt7621_pci_ops; ++ host->ops = &mt7621_pcie_ops; + host->sysdata = pcie; + return pci_host_probe(host); + } + +-static const struct soc_device_attribute mt7621_pci_quirks_match[] = { ++static const struct soc_device_attribute mt7621_pcie_quirks_match[] = { + { .soc_id = "mt7621", .revision = "E2" } + }; + +-static int mt7621_pci_probe(struct platform_device *pdev) ++static int mt7621_pcie_probe(struct platform_device *pdev) + { + struct device *dev = &pdev->dev; + const struct soc_device_attribute *attr; +@@ -535,7 +535,7 @@ static int mt7621_pci_probe(struct platf + platform_set_drvdata(pdev, pcie); + INIT_LIST_HEAD(&pcie->ports); + +- attr = soc_device_match(mt7621_pci_quirks_match); ++ attr = soc_device_match(mt7621_pcie_quirks_match); + if (attr) + pcie->resets_inverted = true; + +@@ -572,7 +572,7 @@ remove_resets: + return err; + } + +-static int mt7621_pci_remove(struct platform_device *pdev) ++static int mt7621_pcie_remove(struct platform_device *pdev) + { + struct mt7621_pcie *pcie = platform_get_drvdata(pdev); + struct mt7621_pcie_port *port; +@@ -583,18 +583,18 @@ static int mt7621_pci_remove(struct plat + return 0; + } + +-static const struct of_device_id mt7621_pci_ids[] = { ++static const struct of_device_id mt7621_pcie_ids[] = { + { .compatible = "mediatek,mt7621-pci" }, + {}, + }; +-MODULE_DEVICE_TABLE(of, mt7621_pci_ids); ++MODULE_DEVICE_TABLE(of, mt7621_pcie_ids); + +-static struct platform_driver mt7621_pci_driver = { +- .probe = mt7621_pci_probe, +- .remove = mt7621_pci_remove, ++static struct platform_driver mt7621_pcie_driver = { ++ .probe = mt7621_pcie_probe, ++ .remove = mt7621_pcie_remove, + .driver = { + .name = "mt7621-pci", +- .of_match_table = of_match_ptr(mt7621_pci_ids), ++ .of_match_table = of_match_ptr(mt7621_pcie_ids), + }, + }; +-builtin_platform_driver(mt7621_pci_driver); ++builtin_platform_driver(mt7621_pcie_driver); diff --git a/target/linux/ramips/patches-5.15/102-PCI-mt7621-Declare-mt7621_pci_ops-static.patch b/target/linux/ramips/patches-5.15/102-PCI-mt7621-Declare-mt7621_pci_ops-static.patch new file mode 100644 index 0000000000..815ecc7d37 --- /dev/null +++ b/target/linux/ramips/patches-5.15/102-PCI-mt7621-Declare-mt7621_pci_ops-static.patch @@ -0,0 +1,30 @@ +From: Sergio Paracuellos <sergio.paracuellos@gmail.com> +Date: Wed, 17 Nov 2021 16:29:52 +0100 +Subject: [PATCH] PCI: mt7621: Declare mt7621_pci_ops static +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +Sparse complains about mt7621_pci_ops symbol is not declared and asks if +it should be declared as static instead. Sparse is right. Hence declare +symbol as static. + +Link: https://lore.kernel.org/r/20211117152952.12271-1-sergio.paracuellos@gmail.com +Reported-by: kernel test robot <lkp@intel.com> +Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com> +Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> +Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> +Reviewed-by: Krzysztof Wilczyński <kw@linux.com> +--- + +--- a/drivers/pci/controller/pcie-mt7621.c ++++ b/drivers/pci/controller/pcie-mt7621.c +@@ -148,7 +148,7 @@ static void __iomem *mt7621_pcie_map_bus + return pcie->base + RALINK_PCI_CONFIG_DATA + (where & 3); + } + +-struct pci_ops mt7621_pcie_ops = { ++static struct pci_ops mt7621_pcie_ops = { + .map_bus = mt7621_pcie_map_bus, + .read = pci_generic_config_read, + .write = pci_generic_config_write, diff --git a/target/linux/ramips/patches-5.15/103-PCI-mt7621-Move-MIPS-setup-to-pcibios_root_bridge_pr.patch b/target/linux/ramips/patches-5.15/103-PCI-mt7621-Move-MIPS-setup-to-pcibios_root_bridge_pr.patch new file mode 100644 index 0000000000..3162ff8107 --- /dev/null +++ b/target/linux/ramips/patches-5.15/103-PCI-mt7621-Move-MIPS-setup-to-pcibios_root_bridge_pr.patch @@ -0,0 +1,119 @@ +From: Sergio Paracuellos <sergio.paracuellos@gmail.com> +Date: Tue, 7 Dec 2021 11:49:21 +0100 +Subject: [PATCH] PCI: mt7621: Move MIPS setup to pcibios_root_bridge_prepare() + +On the MIPS ralink mt7621 platform, we need to set up I/O coherency units +based on the host bridge apertures. + +To remove this arch dependency from the driver itself, move the coherency +setup from the driver to pcibios_root_bridge_prepare(). + +[bhelgaas: squash add/remove into one patch, commit log] +Link: https://lore.kernel.org/r/20211207104924.21327-3-sergio.paracuellos@gmail.com +Link: https://lore.kernel.org/r/20211207104924.21327-4-sergio.paracuellos@gmail.com +Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com> +Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> +Reviewed-by: Guenter Roeck <linux@roeck-us.net> # arch/mips +Acked-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> # arch/mips +--- + +--- a/arch/mips/ralink/mt7621.c ++++ b/arch/mips/ralink/mt7621.c +@@ -10,6 +10,8 @@ + #include <linux/slab.h> + #include <linux/sys_soc.h> + #include <linux/memblock.h> ++#include <linux/pci.h> ++#include <linux/bug.h> + + #include <asm/bootinfo.h> + #include <asm/mipsregs.h> +@@ -24,6 +26,35 @@ + + static u32 detect_magic __initdata; + ++int pcibios_root_bridge_prepare(struct pci_host_bridge *bridge) ++{ ++ struct resource_entry *entry; ++ resource_size_t mask; ++ ++ entry = resource_list_first_type(&bridge->windows, IORESOURCE_MEM); ++ if (!entry) { ++ pr_err("Cannot get memory resource\n"); ++ return -EINVAL; ++ } ++ ++ if (mips_cps_numiocu(0)) { ++ /* ++ * Hardware doesn't accept mask values with 1s after ++ * 0s (e.g. 0xffef), so warn if that's happen ++ */ ++ mask = ~(entry->res->end - entry->res->start) & CM_GCR_REGn_MASK_ADDRMASK; ++ WARN_ON(mask && BIT(ffz(~mask)) - 1 != ~mask); ++ ++ write_gcr_reg1_base(entry->res->start); ++ write_gcr_reg1_mask(mask | CM_GCR_REGn_MASK_CMTGT_IOCU0); ++ pr_info("PCI coherence region base: 0x%08llx, mask/settings: 0x%08llx\n", ++ (unsigned long long)read_gcr_reg1_base(), ++ (unsigned long long)read_gcr_reg1_mask()); ++ } ++ ++ return 0; ++} ++ + phys_addr_t mips_cpc_default_phys_base(void) + { + panic("Cannot detect cpc address"); +--- a/drivers/pci/controller/pcie-mt7621.c ++++ b/drivers/pci/controller/pcie-mt7621.c +@@ -208,37 +208,6 @@ static inline void mt7621_control_deasse + reset_control_assert(port->pcie_rst); + } + +-static int setup_cm_memory_region(struct pci_host_bridge *host) +-{ +- struct mt7621_pcie *pcie = pci_host_bridge_priv(host); +- struct device *dev = pcie->dev; +- struct resource_entry *entry; +- resource_size_t mask; +- +- entry = resource_list_first_type(&host->windows, IORESOURCE_MEM); +- if (!entry) { +- dev_err(dev, "cannot get memory resource\n"); +- return -EINVAL; +- } +- +- if (mips_cps_numiocu(0)) { +- /* +- * FIXME: hardware doesn't accept mask values with 1s after +- * 0s (e.g. 0xffef), so it would be great to warn if that's +- * about to happen +- */ +- mask = ~(entry->res->end - entry->res->start); +- +- write_gcr_reg1_base(entry->res->start); +- write_gcr_reg1_mask(mask | CM_GCR_REGn_MASK_CMTGT_IOCU0); +- dev_info(dev, "PCI coherence region base: 0x%08llx, mask/settings: 0x%08llx\n", +- (unsigned long long)read_gcr_reg1_base(), +- (unsigned long long)read_gcr_reg1_mask()); +- } +- +- return 0; +-} +- + static int mt7621_pcie_parse_port(struct mt7621_pcie *pcie, + struct device_node *node, + int slot) +@@ -557,12 +526,6 @@ static int mt7621_pcie_probe(struct plat + goto remove_resets; + } + +- err = setup_cm_memory_region(bridge); +- if (err) { +- dev_err(dev, "error setting up iocu mem regions\n"); +- goto remove_resets; +- } +- + return mt7621_pcie_register_host(bridge); + + remove_resets: diff --git a/target/linux/ramips/patches-5.15/104-PCI-mt7621-Drop-of_match_ptr-to-avoid-unused-variabl.patch b/target/linux/ramips/patches-5.15/104-PCI-mt7621-Drop-of_match_ptr-to-avoid-unused-variabl.patch new file mode 100644 index 0000000000..0913a452c6 --- /dev/null +++ b/target/linux/ramips/patches-5.15/104-PCI-mt7621-Drop-of_match_ptr-to-avoid-unused-variabl.patch @@ -0,0 +1,35 @@ +From: Sergio Paracuellos <sergio.paracuellos@gmail.com> +Date: Mon, 24 Jan 2022 12:30:02 +0100 +Subject: [PATCH] PCI: mt7621: Drop of_match_ptr() to avoid unused variable + +We have stubs for most OF interfaces even when CONFIG_OF is not set, so we +allow building of pcie-mt7621.c in that case for compile testing. + +When CONFIG_OF is not set, "of_match_ptr(mt7621_pcie_ids)" compiles to +NULL, which leaves mt7621_pcie_ids unused: + + $ make W=1 + drivers/pci/controller/pcie-mt7621.c:549:34: warning: unused variable 'mt7621_pcie_ids' [-Wunused-const-variable] + +Drop of_match_ptr() to avoid the unused variable warning. + +[bhelgaas: commit log] +Fixes: 2bdd5238e756 ("PCI: mt7621: Add MediaTek MT7621 PCIe host controller driver") +Link: https://lore.kernel.org/r/20220124113003.406224-2-sergio.paracuellos@gmail.com +Link: https://lore.kernel.org/r/202201241754.igtHzgHv-lkp@intel.com +Reported-by: kernel test robot <lkp@intel.com> +Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com> +Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> +--- + +--- a/drivers/pci/controller/pcie-mt7621.c ++++ b/drivers/pci/controller/pcie-mt7621.c +@@ -557,7 +557,7 @@ static struct platform_driver mt7621_pci + .remove = mt7621_pcie_remove, + .driver = { + .name = "mt7621-pci", +- .of_match_table = of_match_ptr(mt7621_pcie_ids), ++ .of_match_table = mt7621_pcie_ids, + }, + }; + builtin_platform_driver(mt7621_pcie_driver); diff --git a/target/linux/ramips/patches-5.15/105-PCI-mt7621-Remove-unused-function-pcie_rmw.patch b/target/linux/ramips/patches-5.15/105-PCI-mt7621-Remove-unused-function-pcie_rmw.patch new file mode 100644 index 0000000000..0323588e5a --- /dev/null +++ b/target/linux/ramips/patches-5.15/105-PCI-mt7621-Remove-unused-function-pcie_rmw.patch @@ -0,0 +1,35 @@ +From: Sergio Paracuellos <sergio.paracuellos@gmail.com> +Date: Mon, 24 Jan 2022 12:30:03 +0100 +Subject: [PATCH] PCI: mt7621: Remove unused function pcie_rmw() + +Function pcie_rmw() is not being used at all and can be deleted. Hence get +rid of it, which fixes this warning: + + drivers/pci/controller/pcie-mt7621.c:112:20: warning: unused function 'pcie_rmw' [-Wunused-function] + +Fixes: 2bdd5238e756 ("PCI: mt7621: Add MediaTek MT7621 PCIe host controller driver") +Link: https://lore.kernel.org/r/20220124113003.406224-3-sergio.paracuellos@gmail.com +Link: https://lore.kernel.org/all/202201241754.igtHzgHv-lkp@intel.com/ +Reported-by: kernel test robot <lkp@intel.com> +Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com> +Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> +--- + +--- a/drivers/pci/controller/pcie-mt7621.c ++++ b/drivers/pci/controller/pcie-mt7621.c +@@ -109,15 +109,6 @@ static inline void pcie_write(struct mt7 + writel_relaxed(val, pcie->base + reg); + } + +-static inline void pcie_rmw(struct mt7621_pcie *pcie, u32 reg, u32 clr, u32 set) +-{ +- u32 val = readl_relaxed(pcie->base + reg); +- +- val &= ~clr; +- val |= set; +- writel_relaxed(val, pcie->base + reg); +-} +- + static inline u32 pcie_port_read(struct mt7621_pcie_port *port, u32 reg) + { + return readl_relaxed(port->base + reg); diff --git a/target/linux/ramips/patches-5.15/106-PCI-Let-pcibios_root_bridge_prepare-access-bridge-wi.patch b/target/linux/ramips/patches-5.15/106-PCI-Let-pcibios_root_bridge_prepare-access-bridge-wi.patch new file mode 100644 index 0000000000..2fbbf9a7aa --- /dev/null +++ b/target/linux/ramips/patches-5.15/106-PCI-Let-pcibios_root_bridge_prepare-access-bridge-wi.patch @@ -0,0 +1,38 @@ +From: Sergio Paracuellos <sergio.paracuellos@gmail.com> +Date: Tue, 7 Dec 2021 11:49:20 +0100 +Subject: [PATCH] PCI: Let pcibios_root_bridge_prepare() access bridge->windows + +When pci_register_host_bridge() is called, bridge->windows are already +available. However these windows are being moved temporarily from there. + +To let pcibios_root_bridge_prepare() have access to these windows, move the +windows movement after calling this function. This is useful for the MIPS +ralink mt7621 platform so it can set up I/O coherence units and avoid +custom MIPS code in the mt7621 PCIe controller driver. + +Link: https://lore.kernel.org/r/20211207104924.21327-2-sergio.paracuellos@gmail.com +Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com> +Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> +Acked-by: Arnd Bergmann <arnd@arndb.de> +--- + +--- a/drivers/pci/probe.c ++++ b/drivers/pci/probe.c +@@ -898,8 +898,6 @@ static int pci_register_host_bridge(stru + + bridge->bus = bus; + +- /* Temporarily move resources off the list */ +- list_splice_init(&bridge->windows, &resources); + bus->sysdata = bridge->sysdata; + bus->ops = bridge->ops; + bus->number = bus->busn_res.start = bridge->busnr; +@@ -925,6 +923,8 @@ static int pci_register_host_bridge(stru + if (err) + goto free; + ++ /* Temporarily move resources off the list */ ++ list_splice_init(&bridge->windows, &resources); + err = device_add(&bridge->dev); + if (err) { + put_device(&bridge->dev); diff --git a/target/linux/ramips/patches-5.15/110-reset_controller_driver.patch b/target/linux/ramips/patches-5.15/110-reset_controller_driver.patch new file mode 100644 index 0000000000..6c923d70c3 --- /dev/null +++ b/target/linux/ramips/patches-5.15/110-reset_controller_driver.patch @@ -0,0 +1,61 @@ +--- a/arch/mips/ralink/reset.c ++++ b/arch/mips/ralink/reset.c +@@ -11,6 +11,7 @@ + #include <linux/of.h> + #include <linux/delay.h> + #include <linux/reset-controller.h> ++#include <linux/platform_device.h> + + #include <asm/reboot.h> + +@@ -65,21 +66,39 @@ static const struct reset_control_ops re + .deassert = ralink_deassert_device, + }; + +-static struct reset_controller_dev reset_dev = { +- .ops = &reset_ops, +- .owner = THIS_MODULE, +- .nr_resets = 32, +- .of_reset_n_cells = 1, ++static int ralink_reset_probe(struct platform_device *pdev) ++{ ++ struct reset_controller_dev *rcdev; ++ ++ rcdev = devm_kzalloc(&pdev->dev, sizeof(*rcdev), GFP_KERNEL); ++ if (!rcdev) ++ return -ENOMEM; ++ ++ rcdev->ops = &reset_ops; ++ rcdev->owner = THIS_MODULE; ++ rcdev->nr_resets = 32; ++ rcdev->of_reset_n_cells = 1; ++ rcdev->of_node = pdev->dev.of_node; ++ ++ return devm_reset_controller_register(&pdev->dev, rcdev); ++} ++ ++static const struct of_device_id ralink_reset_dt_ids[] = { ++ { .compatible = "ralink,rt2880-reset" }, ++ {} ++}; ++ ++static struct platform_driver ralink_reset_driver = { ++ .probe = ralink_reset_probe, ++ .driver = { ++ .name = "ralink-reset", ++ .of_match_table = ralink_reset_dt_ids, ++ } + }; + + void ralink_rst_init(void) + { +- reset_dev.of_node = of_find_compatible_node(NULL, NULL, +- "ralink,rt2880-reset"); +- if (!reset_dev.of_node) +- pr_err("Failed to find reset controller node"); +- else +- reset_controller_register(&reset_dev); ++ platform_driver_register(&ralink_reset_driver); + } + + static void ralink_restart(char *command) diff --git a/target/linux/ramips/patches-5.15/200-add-ralink-eth.patch b/target/linux/ramips/patches-5.15/200-add-ralink-eth.patch new file mode 100644 index 0000000000..4a0262eaad --- /dev/null +++ b/target/linux/ramips/patches-5.15/200-add-ralink-eth.patch @@ -0,0 +1,20 @@ +--- a/drivers/net/ethernet/Kconfig ++++ b/drivers/net/ethernet/Kconfig +@@ -162,6 +162,7 @@ source "drivers/net/ethernet/pasemi/Kcon + source "drivers/net/ethernet/pensando/Kconfig" + source "drivers/net/ethernet/qlogic/Kconfig" + source "drivers/net/ethernet/qualcomm/Kconfig" ++source "drivers/net/ethernet/ralink/Kconfig" + source "drivers/net/ethernet/rdc/Kconfig" + source "drivers/net/ethernet/realtek/Kconfig" + source "drivers/net/ethernet/renesas/Kconfig" +--- a/drivers/net/ethernet/Makefile ++++ b/drivers/net/ethernet/Makefile +@@ -73,6 +73,7 @@ obj-$(CONFIG_NET_VENDOR_PACKET_ENGINES) + obj-$(CONFIG_NET_VENDOR_PASEMI) += pasemi/ + obj-$(CONFIG_NET_VENDOR_QLOGIC) += qlogic/ + obj-$(CONFIG_NET_VENDOR_QUALCOMM) += qualcomm/ ++obj-$(CONFIG_NET_VENDOR_RALINK) += ralink/ + obj-$(CONFIG_NET_VENDOR_REALTEK) += realtek/ + obj-$(CONFIG_NET_VENDOR_RENESAS) += renesas/ + obj-$(CONFIG_NET_VENDOR_RDC) += rdc/ diff --git a/target/linux/ramips/patches-5.15/300-mt7620-export-chip-version-and-pkg.patch b/target/linux/ramips/patches-5.15/300-mt7620-export-chip-version-and-pkg.patch new file mode 100644 index 0000000000..c31be4a5df --- /dev/null +++ b/target/linux/ramips/patches-5.15/300-mt7620-export-chip-version-and-pkg.patch @@ -0,0 +1,19 @@ +--- a/arch/mips/include/asm/mach-ralink/mt7620.h ++++ b/arch/mips/include/asm/mach-ralink/mt7620.h +@@ -96,4 +96,16 @@ static inline int mt7620_get_eco(void) + return rt_sysc_r32(SYSC_REG_CHIP_REV) & CHIP_REV_ECO_MASK; + } + ++static inline int mt7620_get_chipver(void) ++{ ++ return (rt_sysc_r32(SYSC_REG_CHIP_REV) >> CHIP_REV_VER_SHIFT) & ++ CHIP_REV_VER_MASK; ++} ++ ++static inline int mt7620_get_pkg(void) ++{ ++ return (rt_sysc_r32(SYSC_REG_CHIP_REV) >> CHIP_REV_PKG_SHIFT) & ++ CHIP_REV_PKG_MASK; ++} ++ + #endif diff --git a/target/linux/ramips/patches-5.15/311-MIPS-use-set_mode-to-enable-disable-the-cevt-r4k-irq.patch b/target/linux/ramips/patches-5.15/311-MIPS-use-set_mode-to-enable-disable-the-cevt-r4k-irq.patch new file mode 100644 index 0000000000..172cf98ad1 --- /dev/null +++ b/target/linux/ramips/patches-5.15/311-MIPS-use-set_mode-to-enable-disable-the-cevt-r4k-irq.patch @@ -0,0 +1,100 @@ +From ce3d4a4111a5f7e6b4e74bceae5faa6ce388e8ec Mon Sep 17 00:00:00 2001 +From: John Crispin <blogic@openwrt.org> +Date: Sun, 14 Jul 2013 23:08:11 +0200 +Subject: [PATCH 05/53] MIPS: use set_mode() to enable/disable the cevt-r4k + irq + +Signed-off-by: John Crispin <blogic@openwrt.org> +--- + arch/mips/ralink/Kconfig | 5 +++++ + 1 file changed, 5 insertions(+) + +--- a/arch/mips/ralink/Kconfig ++++ b/arch/mips/ralink/Kconfig +@@ -1,12 +1,17 @@ + # SPDX-License-Identifier: GPL-2.0 + if RALINK + ++config CEVT_SYSTICK_QUIRK ++ bool ++ default n ++ + config CLKEVT_RT3352 + bool + depends on SOC_RT305X || SOC_MT7620 + default y + select TIMER_OF + select CLKSRC_MMIO ++ select CEVT_SYSTICK_QUIRK + + config RALINK_ILL_ACC + bool +--- a/arch/mips/kernel/cevt-r4k.c ++++ b/arch/mips/kernel/cevt-r4k.c +@@ -16,6 +16,31 @@ + #include <asm/time.h> + #include <asm/cevt-r4k.h> + ++#ifdef CONFIG_CEVT_SYSTICK_QUIRK ++static int mips_state_oneshot(struct clock_event_device *evt) ++{ ++ unsigned long flags = IRQF_PERCPU | IRQF_TIMER | IRQF_SHARED; ++ if (!cp0_timer_irq_installed) { ++ cp0_timer_irq_installed = 1; ++ if (request_irq(evt->irq, c0_compare_interrupt, flags, "timer", ++ c0_compare_interrupt)) ++ pr_err("Failed to request irq %d (timer)\n", evt->irq); ++ } ++ ++ return 0; ++} ++ ++static int mips_state_shutdown(struct clock_event_device *evt) ++{ ++ if (cp0_timer_irq_installed) { ++ cp0_timer_irq_installed = 0; ++ free_irq(evt->irq, NULL); ++ } ++ ++ return 0; ++} ++#endif ++ + static int mips_next_event(unsigned long delta, + struct clock_event_device *evt) + { +@@ -292,7 +317,9 @@ core_initcall(r4k_register_cpufreq_notif + + int r4k_clockevent_init(void) + { ++#ifndef CONFIG_CEVT_SYSTICK_QUIRK + unsigned long flags = IRQF_PERCPU | IRQF_TIMER | IRQF_SHARED; ++#endif + unsigned int cpu = smp_processor_id(); + struct clock_event_device *cd; + unsigned int irq, min_delta; +@@ -322,11 +349,16 @@ int r4k_clockevent_init(void) + cd->rating = 300; + cd->irq = irq; + cd->cpumask = cpumask_of(cpu); ++#ifdef CONFIG_CEVT_SYSTICK_QUIRK ++ cd->set_state_shutdown = mips_state_shutdown; ++ cd->set_state_oneshot = mips_state_oneshot; ++#endif + cd->set_next_event = mips_next_event; + cd->event_handler = mips_event_handler; + + clockevents_config_and_register(cd, mips_hpt_frequency, min_delta, 0x7fffffff); + ++#ifndef CONFIG_CEVT_SYSTICK_QUIRK + if (cp0_timer_irq_installed) + return 0; + +@@ -335,6 +367,7 @@ int r4k_clockevent_init(void) + if (request_irq(irq, c0_compare_interrupt, flags, "timer", + c0_compare_interrupt)) + pr_err("Failed to request irq %d (timer)\n", irq); ++#endif + + return 0; + } diff --git a/target/linux/ramips/patches-5.15/312-MIPS-ralink-add-cpu-frequency-scaling.patch b/target/linux/ramips/patches-5.15/312-MIPS-ralink-add-cpu-frequency-scaling.patch new file mode 100644 index 0000000000..0d70770941 --- /dev/null +++ b/target/linux/ramips/patches-5.15/312-MIPS-ralink-add-cpu-frequency-scaling.patch @@ -0,0 +1,195 @@ +From bd30f19a006fb52bac80c6463c49dd2f4159f4ac Mon Sep 17 00:00:00 2001 +From: John Crispin <blogic@openwrt.org> +Date: Sun, 28 Jul 2013 16:26:41 +0200 +Subject: [PATCH 06/53] MIPS: ralink: add cpu frequency scaling + +This feature will break udelay() and cause the delay loop to have longer delays +when the frequency is scaled causing a performance hit. + +Signed-off-by: John Crispin <blogic@openwrt.org> +--- + arch/mips/ralink/cevt-rt3352.c | 38 ++++++++++++++++++++++++++++++++++++++ + 1 file changed, 38 insertions(+) + +--- a/arch/mips/ralink/cevt-rt3352.c ++++ b/arch/mips/ralink/cevt-rt3352.c +@@ -29,6 +29,10 @@ + /* enable the counter */ + #define CFG_CNT_EN 0x1 + ++/* mt7620 frequency scaling defines */ ++#define CLK_LUT_CFG 0x40 ++#define SLEEP_EN BIT(31) ++ + struct systick_device { + void __iomem *membase; + struct clock_event_device dev; +@@ -36,21 +40,53 @@ struct systick_device { + int freq_scale; + }; + ++static void (*systick_freq_scaling)(struct systick_device *sdev, int status); ++ + static int systick_set_oneshot(struct clock_event_device *evt); + static int systick_shutdown(struct clock_event_device *evt); + ++static inline void mt7620_freq_scaling(struct systick_device *sdev, int status) ++{ ++ if (sdev->freq_scale == status) ++ return; ++ ++ sdev->freq_scale = status; ++ ++ pr_info("%s: %s autosleep mode\n", sdev->dev.name, ++ (status) ? ("enable") : ("disable")); ++ if (status) ++ rt_sysc_w32(rt_sysc_r32(CLK_LUT_CFG) | SLEEP_EN, CLK_LUT_CFG); ++ else ++ rt_sysc_w32(rt_sysc_r32(CLK_LUT_CFG) & ~SLEEP_EN, CLK_LUT_CFG); ++} ++ ++static inline unsigned int read_count(struct systick_device *sdev) ++{ ++ return ioread32(sdev->membase + SYSTICK_COUNT); ++} ++ ++static inline unsigned int read_compare(struct systick_device *sdev) ++{ ++ return ioread32(sdev->membase + SYSTICK_COMPARE); ++} ++ ++static inline void write_compare(struct systick_device *sdev, unsigned int val) ++{ ++ iowrite32(val, sdev->membase + SYSTICK_COMPARE); ++} ++ + static int systick_next_event(unsigned long delta, + struct clock_event_device *evt) + { + struct systick_device *sdev; +- u32 count; ++ int res; + + sdev = container_of(evt, struct systick_device, dev); +- count = ioread32(sdev->membase + SYSTICK_COUNT); +- count = (count + delta) % SYSTICK_FREQ; +- iowrite32(count, sdev->membase + SYSTICK_COMPARE); ++ delta += read_count(sdev); ++ write_compare(sdev, delta); ++ res = ((int)(read_count(sdev) - delta) >= 0) ? -ETIME : 0; + +- return 0; ++ return res; + } + + static void systick_event_handler(struct clock_event_device *dev) +@@ -60,20 +96,25 @@ static void systick_event_handler(struct + + static irqreturn_t systick_interrupt(int irq, void *dev_id) + { +- struct clock_event_device *dev = (struct clock_event_device *) dev_id; ++ int ret = 0; ++ struct clock_event_device *cdev; ++ struct systick_device *sdev; + +- dev->event_handler(dev); ++ if (read_c0_cause() & STATUSF_IP7) { ++ cdev = (struct clock_event_device *) dev_id; ++ sdev = container_of(cdev, struct systick_device, dev); ++ ++ /* Clear Count/Compare Interrupt */ ++ write_compare(sdev, read_compare(sdev)); ++ cdev->event_handler(cdev); ++ ret = 1; ++ } + +- return IRQ_HANDLED; ++ return IRQ_RETVAL(ret); + } + + static struct systick_device systick = { + .dev = { +- /* +- * cevt-r4k uses 300, make sure systick +- * gets used if available +- */ +- .rating = 310, + .features = CLOCK_EVT_FEAT_ONESHOT, + .set_next_event = systick_next_event, + .set_state_shutdown = systick_shutdown, +@@ -91,7 +132,13 @@ static int systick_shutdown(struct clock + if (sdev->irq_requested) + free_irq(systick.dev.irq, &systick.dev); + sdev->irq_requested = 0; +- iowrite32(0, systick.membase + SYSTICK_CONFIG); ++ iowrite32(CFG_CNT_EN, systick.membase + SYSTICK_CONFIG); ++ ++ if (systick_freq_scaling) ++ systick_freq_scaling(sdev, 0); ++ ++ if (systick_freq_scaling) ++ systick_freq_scaling(sdev, 1); + + return 0; + } +@@ -116,33 +163,46 @@ static int systick_set_oneshot(struct cl + return 0; + } + ++static const struct of_device_id systick_match[] = { ++ { .compatible = "ralink,mt7620a-systick", .data = mt7620_freq_scaling}, ++ {}, ++}; ++ + static int __init ralink_systick_init(struct device_node *np) + { +- int ret; ++ const struct of_device_id *match; ++ int rating = 200; + + systick.membase = of_iomap(np, 0); + if (!systick.membase) + return -ENXIO; + +- systick.dev.name = np->name; +- clockevents_calc_mult_shift(&systick.dev, SYSTICK_FREQ, 60); +- systick.dev.max_delta_ns = clockevent_delta2ns(0x7fff, &systick.dev); +- systick.dev.max_delta_ticks = 0x7fff; +- systick.dev.min_delta_ns = clockevent_delta2ns(0x3, &systick.dev); +- systick.dev.min_delta_ticks = 0x3; ++ match = of_match_node(systick_match, np); ++ if (match) { ++ systick_freq_scaling = match->data; ++ /* ++ * cevt-r4k uses 300, make sure systick ++ * gets used if available ++ */ ++ rating = 310; ++ } ++ ++ /* enable counter than register clock source */ ++ iowrite32(CFG_CNT_EN, systick.membase + SYSTICK_CONFIG); ++ clocksource_mmio_init(systick.membase + SYSTICK_COUNT, np->name, ++ SYSTICK_FREQ, rating, 16, clocksource_mmio_readl_up); ++ ++ /* register clock event */ + systick.dev.irq = irq_of_parse_and_map(np, 0); + if (!systick.dev.irq) { + pr_err("%pOFn: request_irq failed", np); + return -EINVAL; + } + +- ret = clocksource_mmio_init(systick.membase + SYSTICK_COUNT, np->name, +- SYSTICK_FREQ, 301, 16, +- clocksource_mmio_readl_up); +- if (ret) +- return ret; +- +- clockevents_register_device(&systick.dev); ++ systick.dev.name = np->name; ++ systick.dev.rating = rating; ++ systick.dev.cpumask = cpumask_of(0); ++ clockevents_config_and_register(&systick.dev, SYSTICK_FREQ, 0x3, 0x7fff); + + pr_info("%pOFn: running - mult: %d, shift: %d\n", + np, systick.dev.mult, systick.dev.shift); diff --git a/target/linux/ramips/patches-5.15/314-MIPS-add-bootargs-override-property.patch b/target/linux/ramips/patches-5.15/314-MIPS-add-bootargs-override-property.patch new file mode 100644 index 0000000000..07635a9d86 --- /dev/null +++ b/target/linux/ramips/patches-5.15/314-MIPS-add-bootargs-override-property.patch @@ -0,0 +1,63 @@ +From f15d27f9c90ede4b16eb37f9ae573ef81c2b6996 Mon Sep 17 00:00:00 2001 +From: David Bauer <mail@david-bauer.net> +Date: Thu, 31 Dec 2020 18:49:12 +0100 +Subject: [PATCH] MIPS: add bootargs-override property + +Add support for the bootargs-override property to the chosen node +similar to the one used on ipq806x or mpc85xx. + +This is necessary, as the U-Boot used on some boards, notably the +Ubiquiti UniFi 6 Lite, overwrite the bootargs property of the chosen +node leading to a kernel panic when loading OpenWrt. + +Signed-off-by: David Bauer <mail@david-bauer.net> +--- + arch/mips/kernel/setup.c | 30 ++++++++++++++++++++++++++++++ + 1 file changed, 30 insertions(+) + +--- a/arch/mips/kernel/setup.c ++++ b/arch/mips/kernel/setup.c +@@ -544,8 +544,28 @@ static int __init bootcmdline_scan_chose + + #endif /* CONFIG_OF_EARLY_FLATTREE */ + ++static int __init bootcmdline_scan_chosen_override(unsigned long node, const char *uname, ++ int depth, void *data) ++{ ++ bool *dt_bootargs = data; ++ const char *p; ++ int l; ++ ++ if (depth != 1 || !data || strcmp(uname, "chosen") != 0) ++ return 0; ++ ++ p = of_get_flat_dt_prop(node, "bootargs-override", &l); ++ if (p != NULL && l > 0) { ++ strlcpy(boot_command_line, p, COMMAND_LINE_SIZE); ++ *dt_bootargs = true; ++ } ++ ++ return 1; ++} ++ + static void __init bootcmdline_init(void) + { ++ bool dt_bootargs_override = false; + bool dt_bootargs = false; + + /* +@@ -559,6 +579,14 @@ static void __init bootcmdline_init(void + } + + /* ++ * If bootargs-override in the chosen node is set, use this as the ++ * command line ++ */ ++ of_scan_flat_dt(bootcmdline_scan_chosen_override, &dt_bootargs_override); ++ if (dt_bootargs_override) ++ return; ++ ++ /* + * If the user specified a built-in command line & + * MIPS_CMDLINE_BUILTIN_EXTEND, then the built-in command line is + * prepended to arguments from the bootloader or DT so we'll copy them diff --git a/target/linux/ramips/patches-5.15/315-owrt-hack-fix-mt7688-cache-issue.patch b/target/linux/ramips/patches-5.15/315-owrt-hack-fix-mt7688-cache-issue.patch new file mode 100644 index 0000000000..f36f028cab --- /dev/null +++ b/target/linux/ramips/patches-5.15/315-owrt-hack-fix-mt7688-cache-issue.patch @@ -0,0 +1,28 @@ +From 5ede027f6c4a57ed25da872420508b7f1168b36b Mon Sep 17 00:00:00 2001 +From: John Crispin <blogic@openwrt.org> +Date: Mon, 7 Dec 2015 17:15:32 +0100 +Subject: [PATCH 13/53] owrt: hack: fix mt7688 cache issue + +Signed-off-by: John Crispin <blogic@openwrt.org> +--- + arch/mips/kernel/setup.c | 2 +- + 1 file changed, 1 insertion(+), 1 deletion(-) + +--- a/arch/mips/kernel/setup.c ++++ b/arch/mips/kernel/setup.c +@@ -686,7 +686,6 @@ static void __init arch_mem_init(char ** + mips_reserve_vmcore(); + + mips_parse_crashkernel(); +- device_tree_init(); + + /* + * In order to reduce the possibility of kernel panic when failed to +@@ -803,6 +802,7 @@ void __init setup_arch(char **cmdline_p) + + cpu_cache_init(); + paging_init(); ++ device_tree_init(); + + memblock_dump_all(); + } diff --git a/target/linux/ramips/patches-5.15/316-arch-mips-do-not-select-illegal-access-driver-by-def.patch b/target/linux/ramips/patches-5.15/316-arch-mips-do-not-select-illegal-access-driver-by-def.patch new file mode 100644 index 0000000000..1dc54ccf23 --- /dev/null +++ b/target/linux/ramips/patches-5.15/316-arch-mips-do-not-select-illegal-access-driver-by-def.patch @@ -0,0 +1,25 @@ +From 9e6ce539092a1dd605a20bf73c655a9de58d8641 Mon Sep 17 00:00:00 2001 +From: John Crispin <blogic@openwrt.org> +Date: Mon, 7 Dec 2015 17:18:05 +0100 +Subject: [PATCH 15/53] arch: mips: do not select illegal access driver by + default + +Signed-off-by: John Crispin <blogic@openwrt.org> +--- + arch/mips/ralink/Kconfig | 4 ++-- + 1 file changed, 2 insertions(+), 2 deletions(-) + +--- a/arch/mips/ralink/Kconfig ++++ b/arch/mips/ralink/Kconfig +@@ -14,9 +14,9 @@ config CLKEVT_RT3352 + select CEVT_SYSTICK_QUIRK + + config RALINK_ILL_ACC +- bool ++ bool "illegal access irq" + depends on SOC_RT305X +- default y ++ default n + + config IRQ_INTC + bool diff --git a/target/linux/ramips/patches-5.15/320-MIPS-add-support-for-buggy-MT7621S-core-detection.patch b/target/linux/ramips/patches-5.15/320-MIPS-add-support-for-buggy-MT7621S-core-detection.patch new file mode 100644 index 0000000000..0eb6676414 --- /dev/null +++ b/target/linux/ramips/patches-5.15/320-MIPS-add-support-for-buggy-MT7621S-core-detection.patch @@ -0,0 +1,74 @@ +From 6decd1aad15f56b169217789630a0098b496de0e Mon Sep 17 00:00:00 2001 +From: Ilya Lipnitskiy <ilya.lipnitskiy@gmail.com> +Date: Wed, 7 Apr 2021 13:07:38 -0700 +Subject: [PATCH] MIPS: add support for buggy MT7621S core detection + +Most MT7621 SoCs have 2 cores, which is detected and supported properly +by CPS. + +Unfortunately, MT7621 SoC has a less common S variant with only one core. +On MT7621S, GCR_CONFIG still reports 2 cores, which leads to hangs when +starting SMP. CPULAUNCH registers can be used in that case to detect the +absence of the second core and override the GCR_CONFIG PCORES field. + +Rework a long-standing OpenWrt patch to override the value of +mips_cps_numcores on single-core MT7621 systems. + +Tested on a dual-core MT7621 device (Ubiquiti ER-X) and a single-core +MT7621 device (Netgear R6220). + +Original 4.14 OpenWrt patch: +Link: https://git.openwrt.org/?p=openwrt/openwrt.git;a=commitdiff;h=4cdbc90a376dd0555201c1434a2081e055e9ceb7 +Current 5.10 OpenWrt patch: +Link: https://git.openwrt.org/?p=openwrt/openwrt.git;a=blob;f=target/linux/ramips/patches-5.10/320-mt7621-core-detect-hack.patch;h=c63f0f4c1ec742e24d8480e80553863744b58f6a;hb=10267e17299806f9885d086147878f6c492cb904 + +Suggested-by: Felix Fietkau <nbd@nbd.name> +Signed-off-by: Ilya Lipnitskiy <ilya.lipnitskiy@gmail.com> +Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> +--- + arch/mips/include/asm/mips-cps.h | 23 ++++++++++++++++++++++- + 1 file changed, 22 insertions(+), 1 deletion(-) + +--- a/arch/mips/include/asm/mips-cps.h ++++ b/arch/mips/include/asm/mips-cps.h +@@ -10,6 +10,8 @@ + #include <linux/io.h> + #include <linux/types.h> + ++#include <asm/mips-boards/launch.h> ++ + extern unsigned long __cps_access_bad_size(void) + __compiletime_error("Bad size for CPS accessor"); + +@@ -165,11 +167,30 @@ static inline uint64_t mips_cps_cluster_ + */ + static inline unsigned int mips_cps_numcores(unsigned int cluster) + { ++ unsigned int ncores; ++ + if (!mips_cm_present()) + return 0; + + /* Add one before masking to handle 0xff indicating no cores */ +- return (mips_cps_cluster_config(cluster) + 1) & CM_GCR_CONFIG_PCORES; ++ ncores = (mips_cps_cluster_config(cluster) + 1) & CM_GCR_CONFIG_PCORES; ++ ++ if (IS_ENABLED(CONFIG_SOC_MT7621)) { ++ struct cpulaunch *launch; ++ ++ /* ++ * Ralink MT7621S SoC is single core, but the GCR_CONFIG method ++ * always reports 2 cores. Check the second core's LAUNCH_FREADY ++ * flag to detect if the second core is missing. This method ++ * only works before the core has been started. ++ */ ++ launch = (struct cpulaunch *)CKSEG0ADDR(CPULAUNCH); ++ launch += 2; /* MT7621 has 2 VPEs per core */ ++ if (!(launch->flags & LAUNCH_FREADY)) ++ ncores = 1; ++ } ++ ++ return ncores; + } + + /** diff --git a/target/linux/ramips/patches-5.15/324-mt7621-perfctr-fix.patch b/target/linux/ramips/patches-5.15/324-mt7621-perfctr-fix.patch new file mode 100644 index 0000000000..dfeac7eb99 --- /dev/null +++ b/target/linux/ramips/patches-5.15/324-mt7621-perfctr-fix.patch @@ -0,0 +1,15 @@ +--- a/arch/mips/ralink/irq-gic.c ++++ b/arch/mips/ralink/irq-gic.c +@@ -13,6 +13,12 @@ + + int get_c0_perfcount_int(void) + { ++ /* ++ * Performance counter events are routed through GIC. ++ * Prevent them from firing on CPU IRQ7 as well ++ */ ++ clear_c0_status(IE_SW0 << 7); ++ + return gic_get_c0_perfcount_int(); + } + EXPORT_SYMBOL_GPL(get_c0_perfcount_int); diff --git a/target/linux/ramips/patches-5.15/400-mtd-cfi-cmdset-0002-force-word-write.patch b/target/linux/ramips/patches-5.15/400-mtd-cfi-cmdset-0002-force-word-write.patch new file mode 100644 index 0000000000..7011bbe50b --- /dev/null +++ b/target/linux/ramips/patches-5.15/400-mtd-cfi-cmdset-0002-force-word-write.patch @@ -0,0 +1,20 @@ +From ee9081b2726a5ca8cde5497afdc5425e21ff8f8b Mon Sep 17 00:00:00 2001 +From: John Crispin <blogic@openwrt.org> +Date: Mon, 15 Jul 2013 00:39:21 +0200 +Subject: [PATCH 37/53] mtd: cfi cmdset 0002 force word write + +--- + drivers/mtd/chips/cfi_cmdset_0002.c | 9 +++++++-- + 1 file changed, 7 insertions(+), 2 deletions(-) + +--- a/drivers/mtd/chips/cfi_cmdset_0002.c ++++ b/drivers/mtd/chips/cfi_cmdset_0002.c +@@ -40,7 +40,7 @@ + #include <linux/mtd/xip.h> + + #define AMD_BOOTLOC_BUG +-#define FORCE_WORD_WRITE 0 ++#define FORCE_WORD_WRITE 1 + + #define MAX_RETRIES 3 + diff --git a/target/linux/ramips/patches-5.15/405-mtd-spi-nor-Add-support-for-BoHong-bh25q128as.patch b/target/linux/ramips/patches-5.15/405-mtd-spi-nor-Add-support-for-BoHong-bh25q128as.patch new file mode 100644 index 0000000000..76b9b36b07 --- /dev/null +++ b/target/linux/ramips/patches-5.15/405-mtd-spi-nor-Add-support-for-BoHong-bh25q128as.patch @@ -0,0 +1,75 @@ +From 52d14545d2fc276b1bf9ccf48d4612fab6edfb6a Mon Sep 17 00:00:00 2001 +From: David Bauer <mail@david-bauer.net> +Date: Thu, 6 May 2021 17:49:55 +0200 +Subject: [PATCH] mtd: spi-nor: Add support for BoHong bh25q128as + +Add MTD support for the BoHong bh25q128as SPI NOR chip. +The chip has 16MB of total capacity, divided into a total of 256 +sectors, each 64KB sized. The chip also supports 4KB sectors. +Additionally, it supports dual and quad read modes. + +Functionality was verified on an Tenbay WR1800K / MTK MT7621 board. + +Signed-off-by: David Bauer <mail@david-bauer.net> +--- + drivers/mtd/spi-nor/Makefile | 1 + + drivers/mtd/spi-nor/bohong.c | 21 +++++++++++++++++++++ + drivers/mtd/spi-nor/core.c | 1 + + drivers/mtd/spi-nor/core.h | 1 + + 4 files changed, 24 insertions(+) + create mode 100644 drivers/mtd/spi-nor/bohong.c + +--- a/drivers/mtd/spi-nor/Makefile ++++ b/drivers/mtd/spi-nor/Makefile +@@ -2,6 +2,7 @@ + + spi-nor-objs := core.o sfdp.o swp.o otp.o sysfs.o + spi-nor-objs += atmel.o ++spi-nor-objs += bohong.o + spi-nor-objs += catalyst.o + spi-nor-objs += eon.o + spi-nor-objs += esmt.o +--- /dev/null ++++ b/drivers/mtd/spi-nor/bohong.c +@@ -0,0 +1,21 @@ ++// SPDX-License-Identifier: GPL-2.0 ++/* ++ * Copyright (C) 2005, Intec Automation Inc. ++ * Copyright (C) 2014, Freescale Semiconductor, Inc. ++ */ ++ ++#include <linux/mtd/spi-nor.h> ++ ++#include "core.h" ++ ++static const struct flash_info bohong_parts[] = { ++ /* BoHong Microelectronics */ ++ { "bh25q128as", INFO(0x684018, 0, 64 * 1024, 256, ++ SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ) }, ++}; ++ ++const struct spi_nor_manufacturer spi_nor_bohong = { ++ .name = "bohong", ++ .parts = bohong_parts, ++ .nparts = ARRAY_SIZE(bohong_parts), ++}; +--- a/drivers/mtd/spi-nor/core.c ++++ b/drivers/mtd/spi-nor/core.c +@@ -1832,6 +1832,7 @@ int spi_nor_sr2_bit7_quad_enable(struct + + static const struct spi_nor_manufacturer *manufacturers[] = { + &spi_nor_atmel, ++ &spi_nor_bohong, + &spi_nor_catalyst, + &spi_nor_eon, + &spi_nor_esmt, +--- a/drivers/mtd/spi-nor/core.h ++++ b/drivers/mtd/spi-nor/core.h +@@ -473,6 +473,7 @@ struct sfdp { + + /* Manufacturer drivers. */ + extern const struct spi_nor_manufacturer spi_nor_atmel; ++extern const struct spi_nor_manufacturer spi_nor_bohong; + extern const struct spi_nor_manufacturer spi_nor_catalyst; + extern const struct spi_nor_manufacturer spi_nor_eon; + extern const struct spi_nor_manufacturer spi_nor_esmt; diff --git a/target/linux/ramips/patches-5.15/410-mtd-rawnand-add-driver-support-for-MT7621-nand-flash.patch b/target/linux/ramips/patches-5.15/410-mtd-rawnand-add-driver-support-for-MT7621-nand-flash.patch new file mode 100644 index 0000000000..33a741e531 --- /dev/null +++ b/target/linux/ramips/patches-5.15/410-mtd-rawnand-add-driver-support-for-MT7621-nand-flash.patch @@ -0,0 +1,47 @@ +From e84e2430ee0e483842b4ff013ae8a6e7e2fa2734 Mon Sep 17 00:00:00 2001 +From: Weijie Gao <weijie.gao@mediatek.com> +Date: Wed, 1 Apr 2020 02:07:58 +0800 +Subject: [PATCH 1/2] mtd: rawnand: add driver support for MT7621 nand + flash controller + +This patch adds NAND flash controller driver for MediaTek MT7621 SoC. + +The NAND flash controller is similar with controllers described in +mtk_nand.c, except that the controller from MT7621 doesn't support DMA +transmission, and some registers' offset and fields are different. + +Signed-off-by: Weijie Gao <weijie.gao@mediatek.com> +--- + drivers/mtd/nand/raw/Kconfig | 8 + + drivers/mtd/nand/raw/Makefile | 1 + + drivers/mtd/nand/raw/mt7621_nand.c | 1348 ++++++++++++++++++++++++++++++++++++ + 3 files changed, 1357 insertions(+) + create mode 100644 drivers/mtd/nand/raw/mt7621_nand.c + +--- a/drivers/mtd/nand/raw/Kconfig ++++ b/drivers/mtd/nand/raw/Kconfig +@@ -358,6 +358,14 @@ config MTD_NAND_QCOM + Enables support for NAND flash chips on SoCs containing the EBI2 NAND + controller. This controller is found on IPQ806x SoC. + ++config MTD_NAND_MT7621 ++ tristate "MT7621 NAND controller" ++ depends on SOC_MT7621 || COMPILE_TEST ++ depends on HAS_IOMEM ++ help ++ Enables support for NAND controller on MT7621 SoC. ++ This driver uses PIO mode for data transmission instead of DMA mode. ++ + config MTD_NAND_MTK + tristate "MTK NAND controller" + depends on ARCH_MEDIATEK || COMPILE_TEST +--- a/drivers/mtd/nand/raw/Makefile ++++ b/drivers/mtd/nand/raw/Makefile +@@ -48,6 +48,7 @@ obj-$(CONFIG_MTD_NAND_SUNXI) += sunxi_n + obj-$(CONFIG_MTD_NAND_HISI504) += hisi504_nand.o + obj-$(CONFIG_MTD_NAND_BRCMNAND) += brcmnand/ + obj-$(CONFIG_MTD_NAND_QCOM) += qcom_nandc.o ++obj-$(CONFIG_MTD_NAND_MT7621) += mt7621_nand.o + obj-$(CONFIG_MTD_NAND_MTK) += mtk_ecc.o mtk_nand.o + obj-$(CONFIG_MTD_NAND_MXIC) += mxic_nand.o + obj-$(CONFIG_MTD_NAND_TEGRA) += tegra_nand.o diff --git a/target/linux/ramips/patches-5.15/411-dt-bindings-add-documentation-for-mt7621-nand-driver.patch b/target/linux/ramips/patches-5.15/411-dt-bindings-add-documentation-for-mt7621-nand-driver.patch new file mode 100644 index 0000000000..3d122c10c0 --- /dev/null +++ b/target/linux/ramips/patches-5.15/411-dt-bindings-add-documentation-for-mt7621-nand-driver.patch @@ -0,0 +1,85 @@ +From 3d5f4da8296b23eb3abf8b13122b0d06a215e79c Mon Sep 17 00:00:00 2001 +From: Weijie Gao <weijie.gao@mediatek.com> +Date: Wed, 1 Apr 2020 02:07:59 +0800 +Subject: [PATCH 2/2] dt-bindings: add documentation for mt7621-nand driver + +This patch adds documentation for MediaTek MT7621 NAND flash controller +driver. + +Signed-off-by: Weijie Gao <weijie.gao@mediatek.com> +--- + .../bindings/mtd/mediatek,mt7621-nfc.yaml | 68 ++++++++++++++++++++++ + 1 file changed, 68 insertions(+) + create mode 100644 Documentation/devicetree/bindings/mtd/mediatek,mt7621-nfc.yaml + +--- /dev/null ++++ b/Documentation/devicetree/bindings/mtd/mediatek,mt7621-nfc.yaml +@@ -0,0 +1,68 @@ ++# SPDX-License-Identifier: GPL-2.0 ++%YAML 1.2 ++--- ++$id: http://devicetree.org/schemas/mtd/mediatek,mt7621-nfc.yaml# ++$schema: http://devicetree.org/meta-schemas/core.yaml# ++ ++title: MediaTek MT7621 SoC NAND Flash Controller (NFC) DT binding ++ ++maintainers: ++ - Weijie Gao <weijie.gao@mediatek.com> ++ ++description: | ++ This driver uses a single node to describe both NAND Flash controller ++ interface (NFI) and ECC engine for MT7621 SoC. ++ MT7621 supports only one chip select. ++ ++properties: ++ "#address-cells": false ++ "#size-cells": false ++ ++ compatible: ++ enum: ++ - mediatek,mt7621-nfc ++ ++ reg: ++ items: ++ - description: Register base of NFI core ++ - description: Register base of ECC engine ++ ++ reg-names: ++ items: ++ - const: nfi ++ - const: ecc ++ ++ clocks: ++ items: ++ - description: Source clock for NFI core, fixed 125MHz ++ ++ clock-names: ++ items: ++ - const: nfi_clk ++ ++required: ++ - compatible ++ - reg ++ - reg-names ++ - clocks ++ - clock-names ++ ++examples: ++ - | ++ nficlock: nficlock { ++ #clock-cells = <0>; ++ compatible = "fixed-clock"; ++ ++ clock-frequency = <125000000>; ++ }; ++ ++ nand@1e003000 { ++ compatible = "mediatek,mt7621-nfc"; ++ ++ reg = <0x1e003000 0x800 ++ 0x1e003800 0x800>; ++ reg-names = "nfi", "ecc"; ++ ++ clocks = <&nficlock>; ++ clock-names = "nfi_clk"; ++ }; diff --git a/target/linux/ramips/patches-5.15/700-net-ethernet-mediatek-support-net-labels.patch b/target/linux/ramips/patches-5.15/700-net-ethernet-mediatek-support-net-labels.patch new file mode 100644 index 0000000000..954cd57b67 --- /dev/null +++ b/target/linux/ramips/patches-5.15/700-net-ethernet-mediatek-support-net-labels.patch @@ -0,0 +1,34 @@ +From bd0f89de5476ca25e73fae829ba3e1dafae1d90d Mon Sep 17 00:00:00 2001 +From: =?UTF-8?q?Ren=C3=A9=20van=20Dorst?= <opensource@vdorst.com> +Date: Fri, 21 Jun 2019 10:04:05 +0200 +Subject: [PATCH] net: ethernet: mediatek: support net-labels + +With this patch, device name can be set within dts file in the same way as dsa +port can. +Add: label = "wan"; to GMAC node. + +Signed-off-by: René van Dorst <opensource@vdorst.com> +--- + drivers/net/ethernet/mediatek/mtk_eth_soc.c | 4 ++++ + 1 file changed, 4 insertions(+) + +--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c ++++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c +@@ -2968,6 +2968,7 @@ static const struct net_device_ops mtk_n + + static int mtk_add_mac(struct mtk_eth *eth, struct device_node *np) + { ++ const char *name = of_get_property(np, "label", NULL); + const __be32 *_id = of_get_property(np, "reg", NULL); + phy_interface_t phy_mode; + struct phylink *phylink; +@@ -3063,6 +3064,9 @@ static int mtk_add_mac(struct mtk_eth *e + else + eth->netdev[id]->max_mtu = MTK_MAX_RX_LENGTH_2K - MTK_RX_ETH_HLEN; + ++ if (name) ++ strlcpy(eth->netdev[id]->name, name, IFNAMSIZ); ++ + return 0; + + free_netdev: diff --git a/target/linux/ramips/patches-5.15/710-at803x.patch b/target/linux/ramips/patches-5.15/710-at803x.patch new file mode 100644 index 0000000000..202e67a605 --- /dev/null +++ b/target/linux/ramips/patches-5.15/710-at803x.patch @@ -0,0 +1,184 @@ +From 924453aa9d2324e5611f8e2b71df746d8f0c79f1 Mon Sep 17 00:00:00 2001 +From: =?UTF-8?q?Ren=C3=A9=20van=20Dorst?= <opensource@vdorst.com> +Date: Fri, 13 Nov 2020 16:11:32 +0100 +Subject: [PATCH] net: phy: at803x: add support for SFP module in + RGMII-to-x-base mode +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +Signed-off-by: René van Dorst <opensource@vdorst.com> +--- + drivers/net/phy/at803x.c | 91 ++++++++++++++++++++++++++++++++++++++++ + 1 file changed, 91 insertions(+) + +--- a/drivers/net/phy/at803x.c ++++ b/drivers/net/phy/at803x.c +@@ -20,6 +20,8 @@ + #include <linux/regulator/driver.h> + #include <linux/regulator/consumer.h> + #include <dt-bindings/net/qca-ar803x.h> ++#include <linux/sfp.h> ++#include <linux/phylink.h> + + #define AT803X_SPECIFIC_FUNCTION_CONTROL 0x10 + #define AT803X_SFC_ASSERT_CRS BIT(11) +@@ -82,9 +84,18 @@ + + #define AT803X_MODE_CFG_MASK 0x0F + #define AT803X_MODE_CFG_SGMII 0x01 ++#define AT803X_MODE_CFG_BX1000_RGMII_50 0x02 ++#define AT803X_MODE_CFG_BX1000_RGMII_75 0x03 ++#define AT803X_MODE_FIBER 0x01 ++#define AT803X_MODE_COPPER 0x00 + + #define AT803X_PSSR 0x11 /*PHY-Specific Status Register*/ + #define AT803X_PSSR_MR_AN_COMPLETE 0x0200 ++#define PSSR_LINK BIT(10) ++#define PSSR_SYNC_STATUS BIT(8) ++#define PSSR_DUPLEX BIT(13) ++#define PSSR_SPEED_1000 BIT(15) ++#define PSSR_SPEED_100 BIT(14) + + #define AT803X_DEBUG_ANALOG_TEST_CTRL 0x00 + #define QCA8327_DEBUG_MANU_CTRL_EN BIT(2) +@@ -652,12 +663,75 @@ static int at803x_parse_dt(struct phy_de + return 0; + } + ++static int at803x_mode(struct phy_device *phydev) ++{ ++ int mode; ++ ++ mode = phy_read(phydev, AT803X_REG_CHIP_CONFIG) & AT803X_MODE_CFG_MASK; ++ ++ if (mode == AT803X_MODE_CFG_BX1000_RGMII_50 || ++ mode == AT803X_MODE_CFG_BX1000_RGMII_75) ++ return AT803X_MODE_FIBER; ++ return AT803X_MODE_COPPER; ++} ++ ++static int at803x_sfp_insert(void *upstream, const struct sfp_eeprom_id *id) ++{ ++ __ETHTOOL_DECLARE_LINK_MODE_MASK(at803x_support) = { 0, }; ++ __ETHTOOL_DECLARE_LINK_MODE_MASK(support) = { 0, }; ++ struct phy_device *phydev = upstream; ++ phy_interface_t iface; ++ ++ phylink_set(at803x_support, 1000baseX_Full); ++ /* AT803x only support 1000baseX but SGMII works fine when module runs ++ * at 1Gbit. ++ */ ++ phylink_set(at803x_support, 1000baseT_Full); ++ ++ sfp_parse_support(phydev->sfp_bus, id, support); ++ ++ // Limit to interfaces that both sides support ++ linkmode_and(support, support, at803x_support); ++ ++ if (linkmode_empty(support)) ++ goto unsupported_mode; ++ ++ iface = sfp_select_interface(phydev->sfp_bus, support); ++ ++ if (iface != PHY_INTERFACE_MODE_SGMII && ++ iface != PHY_INTERFACE_MODE_1000BASEX) ++ goto unsupported_mode; ++ ++ dev_info(&phydev->mdio.dev, "SFP interface %s", phy_modes(iface)); ++ ++ return 0; ++ ++unsupported_mode: ++ dev_info(&phydev->mdio.dev, "incompatible SFP module inserted;" ++ "Only SGMII at 1Gbit/1000BASEX are supported!\n"); ++ return -EINVAL; ++} ++ ++static const struct sfp_upstream_ops at803x_sfp_ops = { ++ .attach = phy_sfp_attach, ++ .detach = phy_sfp_detach, ++ .module_insert = at803x_sfp_insert, ++}; ++ ++ + static int at803x_probe(struct phy_device *phydev) + { + struct device *dev = &phydev->mdio.dev; + struct at803x_priv *priv; + int ret; + ++ ++ if (at803x_mode(phydev) == AT803X_MODE_FIBER) { ++ ret = phy_sfp_probe(phydev, &at803x_sfp_ops); ++ if (ret < 0) ++ return ret; ++ } ++ + priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL); + if (!priv) + return -ENOMEM; +@@ -674,6 +748,7 @@ static int at803x_probe(struct phy_devic + return ret; + } + ++#if 0 + /* Some bootloaders leave the fiber page selected. + * Switch to the copper page, as otherwise we read + * the PHY capabilities from the fiber side. +@@ -685,6 +760,7 @@ static int at803x_probe(struct phy_devic + if (ret) + goto err; + } ++#endif + + return 0; + +@@ -711,6 +787,7 @@ static int at803x_get_features(struct ph + if (err) + return err; + ++#if 0 + if (phydev->drv->phy_id != ATH8031_PHY_ID) + return 0; + +@@ -728,6 +805,7 @@ static int at803x_get_features(struct ph + */ + linkmode_clear_bit(ETHTOOL_LINK_MODE_1000baseX_Full_BIT, + phydev->supported); ++#endif + return 0; + } + +@@ -933,6 +1011,10 @@ static int at803x_read_status(struct phy + { + int ss, err, old_link = phydev->link; + ++ /* Handle (Fiber) SGMII to RGMII mode */ ++ if (at803x_mode(phydev) == AT803X_MODE_FIBER) ++ return genphy_c37_read_status(phydev); ++ + /* Update the link, but return if there was an error */ + err = genphy_update_link(phydev); + if (err) +@@ -1033,6 +1115,12 @@ static int at803x_config_aneg(struct phy + { + int ret; + ++ /* Handle (Fiber) SerDes to RGMII mode */ ++ if (at803x_mode(phydev) == AT803X_MODE_FIBER) { ++ pr_warn("%s: fiber\n", __func__); ++ return genphy_c37_config_aneg(phydev); ++ } ++ + ret = at803x_config_mdix(phydev, phydev->mdix_ctrl); + if (ret < 0) + return ret; +@@ -1445,6 +1533,7 @@ static struct phy_driver at803x_driver[] + /* Qualcomm Atheros AR8031/AR8033 */ + PHY_ID_MATCH_EXACT(ATH8031_PHY_ID), + .name = "Qualcomm Atheros AR8031/AR8033", ++ .config_aneg = at803x_config_aneg, + .flags = PHY_POLL_CABLE_TEST, + .probe = at803x_probe, + .remove = at803x_remove, diff --git a/target/linux/ramips/patches-5.15/720-Revert-net-phy-simplify-phy_link_change-arguments.patch b/target/linux/ramips/patches-5.15/720-Revert-net-phy-simplify-phy_link_change-arguments.patch new file mode 100644 index 0000000000..b37d590475 --- /dev/null +++ b/target/linux/ramips/patches-5.15/720-Revert-net-phy-simplify-phy_link_change-arguments.patch @@ -0,0 +1,118 @@ +From ffbb1b37a3e1ce1a5c574a6bd4f5aede8bc468ac Mon Sep 17 00:00:00 2001 +From: Ilya Lipnitskiy <ilya.lipnitskiy@gmail.com> +Date: Sat, 27 Feb 2021 20:20:07 -0800 +Subject: [PATCH] Revert "net: phy: simplify phy_link_change arguments" + +This reverts commit a307593a644443db12888f45eed0dafb5869e2cc. + +This brings back the do_carrier flags used by the (hacky) next patch, +still required by target/linux/ramips/files/drivers/net/ethernet/ralink/mdio.c +--- + drivers/net/phy/phy.c | 12 ++++++------ + drivers/net/phy/phy_device.c | 12 +++++++----- + drivers/net/phy/phylink.c | 3 ++- + include/linux/phy.h | 2 +- + 4 files changed, 16 insertions(+), 13 deletions(-) + +--- a/drivers/net/phy/phy.c ++++ b/drivers/net/phy/phy.c +@@ -58,13 +58,13 @@ static const char *phy_state_to_str(enum + + static void phy_link_up(struct phy_device *phydev) + { +- phydev->phy_link_change(phydev, true); ++ phydev->phy_link_change(phydev, true, true); + phy_led_trigger_change_speed(phydev); + } + +-static void phy_link_down(struct phy_device *phydev) ++static void phy_link_down(struct phy_device *phydev, bool do_carrier) + { +- phydev->phy_link_change(phydev, false); ++ phydev->phy_link_change(phydev, false, do_carrier); + phy_led_trigger_change_speed(phydev); + } + +@@ -550,7 +550,7 @@ int phy_start_cable_test(struct phy_devi + goto out; + + /* Mark the carrier down until the test is complete */ +- phy_link_down(phydev); ++ phy_link_down(phydev, true); + + netif_testing_on(dev); + err = phydev->drv->cable_test_start(phydev); +@@ -621,7 +621,7 @@ int phy_start_cable_test_tdr(struct phy_ + goto out; + + /* Mark the carrier down until the test is complete */ +- phy_link_down(phydev); ++ phy_link_down(phydev, true); + + netif_testing_on(dev); + err = phydev->drv->cable_test_tdr_start(phydev, config); +@@ -693,7 +693,7 @@ static int phy_check_link_status(struct + phy_link_up(phydev); + } else if (!phydev->link && phydev->state != PHY_NOLINK) { + phydev->state = PHY_NOLINK; +- phy_link_down(phydev); ++ phy_link_down(phydev, true); + } + + return 0; +@@ -1149,7 +1149,7 @@ void phy_state_machine(struct work_struc + case PHY_HALTED: + if (phydev->link) { + phydev->link = 0; +- phy_link_down(phydev); ++ phy_link_down(phydev, true); + } + do_suspend = true; + break; +--- a/drivers/net/phy/phy_device.c ++++ b/drivers/net/phy/phy_device.c +@@ -1000,14 +1000,16 @@ struct phy_device *phy_find_first(struct + } + EXPORT_SYMBOL(phy_find_first); + +-static void phy_link_change(struct phy_device *phydev, bool up) ++static void phy_link_change(struct phy_device *phydev, bool up, bool do_carrier) + { + struct net_device *netdev = phydev->attached_dev; + +- if (up) +- netif_carrier_on(netdev); +- else +- netif_carrier_off(netdev); ++ if (do_carrier) { ++ if (up) ++ netif_carrier_on(netdev); ++ else ++ netif_carrier_off(netdev); ++ } + phydev->adjust_link(netdev); + if (phydev->mii_ts && phydev->mii_ts->link_state) + phydev->mii_ts->link_state(phydev->mii_ts, phydev); +--- a/drivers/net/phy/phylink.c ++++ b/drivers/net/phy/phylink.c +@@ -946,7 +946,8 @@ void phylink_destroy(struct phylink *pl) + } + EXPORT_SYMBOL_GPL(phylink_destroy); + +-static void phylink_phy_change(struct phy_device *phydev, bool up) ++static void phylink_phy_change(struct phy_device *phydev, bool up, ++ bool do_carrier) + { + struct phylink *pl = phydev->phylink; + bool tx_pause, rx_pause; +--- a/include/linux/phy.h ++++ b/include/linux/phy.h +@@ -663,7 +663,7 @@ struct phy_device { + u8 mdix; + u8 mdix_ctrl; + +- void (*phy_link_change)(struct phy_device *phydev, bool up); ++ void (*phy_link_change)(struct phy_device *, bool up, bool do_carrier); + void (*adjust_link)(struct net_device *dev); + + #if IS_ENABLED(CONFIG_MACSEC) diff --git a/target/linux/ramips/patches-5.15/721-NET-no-auto-carrier-off-support.patch b/target/linux/ramips/patches-5.15/721-NET-no-auto-carrier-off-support.patch new file mode 100644 index 0000000000..90d5dfadcb --- /dev/null +++ b/target/linux/ramips/patches-5.15/721-NET-no-auto-carrier-off-support.patch @@ -0,0 +1,47 @@ +From 0b6eb1e68290243d439ee330ea8d0b239a5aec69 Mon Sep 17 00:00:00 2001 +From: John Crispin <blogic@openwrt.org> +Date: Sun, 27 Jul 2014 09:38:50 +0100 +Subject: [PATCH 34/53] NET: multi phy support + +Signed-off-by: John Crispin <blogic@openwrt.org> +--- + drivers/net/phy/phy.c | 9 ++++++--- + include/linux/phy.h | 1 + + 2 files changed, 7 insertions(+), 3 deletions(-) + +--- a/drivers/net/phy/phy.c ++++ b/drivers/net/phy/phy.c +@@ -693,7 +693,10 @@ static int phy_check_link_status(struct + phy_link_up(phydev); + } else if (!phydev->link && phydev->state != PHY_NOLINK) { + phydev->state = PHY_NOLINK; +- phy_link_down(phydev, true); ++ if (!phydev->no_auto_carrier_off) ++ phy_link_down(phydev, true); ++ else ++ phy_link_down(phydev, false); + } + + return 0; +@@ -1149,7 +1152,10 @@ void phy_state_machine(struct work_struc + case PHY_HALTED: + if (phydev->link) { + phydev->link = 0; +- phy_link_down(phydev, true); ++ if (!phydev->no_auto_carrier_off) ++ phy_link_down(phydev, true); ++ else ++ phy_link_down(phydev, false); + } + do_suspend = true; + break; +--- a/include/linux/phy.h ++++ b/include/linux/phy.h +@@ -582,6 +582,7 @@ struct phy_device { + unsigned downshifted_rate:1; + unsigned is_on_sfp_module:1; + unsigned mac_managed_pm:1; ++ unsigned no_auto_carrier_off:1; + + unsigned autoneg:1; + /* The most recently read link state */ diff --git a/target/linux/ramips/patches-5.15/801-DT-Add-documentation-for-gpio-ralink.patch b/target/linux/ramips/patches-5.15/801-DT-Add-documentation-for-gpio-ralink.patch new file mode 100644 index 0000000000..93dabf8776 --- /dev/null +++ b/target/linux/ramips/patches-5.15/801-DT-Add-documentation-for-gpio-ralink.patch @@ -0,0 +1,59 @@ +From d410e5478c622c01fcf31427533df5f433df9146 Mon Sep 17 00:00:00 2001 +From: John Crispin <blogic@openwrt.org> +Date: Sun, 28 Jul 2013 19:45:30 +0200 +Subject: [PATCH 26/53] DT: Add documentation for gpio-ralink + +Describe gpio-ralink binding. + +Signed-off-by: John Crispin <blogic@openwrt.org> +Cc: linux-mips@linux-mips.org +Cc: devicetree@vger.kernel.org +Cc: linux-gpio@vger.kernel.org +--- + .../devicetree/bindings/gpio/gpio-ralink.txt | 40 ++++++++++++++++++++ + 1 file changed, 40 insertions(+) + create mode 100644 Documentation/devicetree/bindings/gpio/gpio-ralink.txt + +--- /dev/null ++++ b/Documentation/devicetree/bindings/gpio/gpio-ralink.txt +@@ -0,0 +1,40 @@ ++Ralink SoC GPIO controller bindings ++ ++Required properties: ++- compatible: ++ - "ralink,rt2880-gpio" for Ralink controllers ++- #gpio-cells : Should be two. ++ - first cell is the pin number ++ - second cell is used to specify optional parameters (unused) ++- gpio-controller : Marks the device node as a GPIO controller ++- reg : Physical base address and length of the controller's registers ++- interrupt-parent: phandle to the INTC device node ++- interrupts : Specify the INTC interrupt number ++- ngpios : Specify the number of GPIOs ++- ralink,register-map : The register layout depends on the GPIO bank and actual ++ SoC type. Register offsets need to be in this order. ++ [ INT, EDGE, RENA, FENA, DATA, DIR, POL, SET, RESET, TOGGLE ] ++ ++Optional properties: ++- ralink,gpio-base : Specify the GPIO chips base number ++ ++Example: ++ ++ gpio0: gpio@600 { ++ compatible = "ralink,rt5350-gpio", "ralink,rt2880-gpio"; ++ ++ #gpio-cells = <2>; ++ gpio-controller; ++ ++ reg = <0x600 0x34>; ++ ++ interrupt-parent = <&intc>; ++ interrupts = <6>; ++ ++ ngpios = <24>; ++ ralink,gpio-base = <0>; ++ ralink,register-map = [ 00 04 08 0c ++ 20 24 28 2c ++ 30 34 ]; ++ ++ }; diff --git a/target/linux/ramips/patches-5.15/802-GPIO-MIPS-ralink-add-gpio-driver-for-ralink-SoC.patch b/target/linux/ramips/patches-5.15/802-GPIO-MIPS-ralink-add-gpio-driver-for-ralink-SoC.patch new file mode 100644 index 0000000000..02fafbdc9b --- /dev/null +++ b/target/linux/ramips/patches-5.15/802-GPIO-MIPS-ralink-add-gpio-driver-for-ralink-SoC.patch @@ -0,0 +1,416 @@ +From 69fdd2c4f937796b934e89c33acde9d082e27bfd Mon Sep 17 00:00:00 2001 +From: John Crispin <blogic@openwrt.org> +Date: Mon, 4 Aug 2014 20:36:29 +0200 +Subject: [PATCH 27/53] GPIO: MIPS: ralink: add gpio driver for ralink SoC + +Add gpio driver for Ralink SoC. This driver makes the gpio core on +RT2880, RT305x, rt3352, rt3662, rt3883, rt5350 and mt7620 work. + +Signed-off-by: John Crispin <blogic@openwrt.org> +Cc: linux-mips@linux-mips.org +Cc: linux-gpio@vger.kernel.org +--- + arch/mips/include/asm/mach-ralink/gpio.h | 24 ++ + drivers/gpio/Kconfig | 6 + + drivers/gpio/Makefile | 1 + + drivers/gpio/gpio-ralink.c | 355 ++++++++++++++++++++++++++++++ + 4 files changed, 386 insertions(+) + create mode 100644 arch/mips/include/asm/mach-ralink/gpio.h + create mode 100644 drivers/gpio/gpio-ralink.c + +--- /dev/null ++++ b/arch/mips/include/asm/mach-ralink/gpio.h +@@ -0,0 +1,24 @@ ++/* ++ * Ralink SoC GPIO API support ++ * ++ * Copyright (C) 2008-2009 Gabor Juhos <juhosg@openwrt.org> ++ * Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org> ++ * ++ * This program is free software; you can redistribute it and/or modify it ++ * under the terms of the GNU General Public License version 2 as published ++ * by the Free Software Foundation. ++ * ++ */ ++ ++#ifndef __ASM_MACH_RALINK_GPIO_H ++#define __ASM_MACH_RALINK_GPIO_H ++ ++#define ARCH_NR_GPIOS 128 ++#include <asm-generic/gpio.h> ++ ++#define gpio_get_value __gpio_get_value ++#define gpio_set_value __gpio_set_value ++#define gpio_cansleep __gpio_cansleep ++#define gpio_to_irq __gpio_to_irq ++ ++#endif /* __ASM_MACH_RALINK_GPIO_H */ +--- a/drivers/gpio/Kconfig ++++ b/drivers/gpio/Kconfig +@@ -569,6 +569,12 @@ config GPIO_SNPS_CREG + where only several fields in register belong to GPIO lines and + each GPIO line owns a field with different length and on/off value. + ++config GPIO_RALINK ++ bool "Ralink GPIO Support" ++ depends on RALINK ++ help ++ Say yes here to support the Ralink SoC GPIO device ++ + config GPIO_SPEAR_SPICS + bool "ST SPEAr13xx SPI Chip Select as GPIO support" + depends on PLAT_SPEAR +--- a/drivers/gpio/Makefile ++++ b/drivers/gpio/Makefile +@@ -121,6 +121,7 @@ obj-$(CONFIG_GPIO_PISOSR) += gpio-pisos + obj-$(CONFIG_GPIO_PL061) += gpio-pl061.o + obj-$(CONFIG_GPIO_PMIC_EIC_SPRD) += gpio-pmic-eic-sprd.o + obj-$(CONFIG_GPIO_PXA) += gpio-pxa.o ++obj-$(CONFIG_GPIO_RALINK) += gpio-ralink.o + obj-$(CONFIG_GPIO_RASPBERRYPI_EXP) += gpio-raspberrypi-exp.o + obj-$(CONFIG_GPIO_RC5T583) += gpio-rc5t583.o + obj-$(CONFIG_GPIO_RCAR) += gpio-rcar.o +--- /dev/null ++++ b/drivers/gpio/gpio-ralink.c +@@ -0,0 +1,341 @@ ++/* ++ * This program is free software; you can redistribute it and/or modify it ++ * under the terms of the GNU General Public License version 2 as published ++ * by the Free Software Foundation. ++ * ++ * Copyright (C) 2009-2011 Gabor Juhos <juhosg@openwrt.org> ++ * Copyright (C) 2013 John Crispin <blogic@openwrt.org> ++ */ ++ ++#include <linux/module.h> ++#include <linux/io.h> ++#include <linux/gpio.h> ++#include <linux/spinlock.h> ++#include <linux/platform_device.h> ++#include <linux/of_irq.h> ++#include <linux/irqdomain.h> ++#include <linux/interrupt.h> ++ ++enum ralink_gpio_reg { ++ GPIO_REG_INT = 0, ++ GPIO_REG_EDGE, ++ GPIO_REG_RENA, ++ GPIO_REG_FENA, ++ GPIO_REG_DATA, ++ GPIO_REG_DIR, ++ GPIO_REG_POL, ++ GPIO_REG_SET, ++ GPIO_REG_RESET, ++ GPIO_REG_TOGGLE, ++ GPIO_REG_MAX ++}; ++ ++struct ralink_gpio_chip { ++ struct gpio_chip chip; ++ u8 regs[GPIO_REG_MAX]; ++ ++ spinlock_t lock; ++ void __iomem *membase; ++ struct irq_domain *domain; ++ int irq; ++ ++ u32 rising; ++ u32 falling; ++}; ++ ++#define MAP_MAX 4 ++static struct irq_domain *irq_map[MAP_MAX]; ++static int irq_map_count; ++static atomic_t irq_refcount = ATOMIC_INIT(0); ++ ++static inline struct ralink_gpio_chip *to_ralink_gpio(struct gpio_chip *chip) ++{ ++ struct ralink_gpio_chip *rg; ++ ++ rg = container_of(chip, struct ralink_gpio_chip, chip); ++ ++ return rg; ++} ++ ++static inline void rt_gpio_w32(struct ralink_gpio_chip *rg, u8 reg, u32 val) ++{ ++ iowrite32(val, rg->membase + rg->regs[reg]); ++} ++ ++static inline u32 rt_gpio_r32(struct ralink_gpio_chip *rg, u8 reg) ++{ ++ return ioread32(rg->membase + rg->regs[reg]); ++} ++ ++static void ralink_gpio_set(struct gpio_chip *chip, unsigned offset, int value) ++{ ++ struct ralink_gpio_chip *rg = to_ralink_gpio(chip); ++ ++ rt_gpio_w32(rg, (value) ? GPIO_REG_SET : GPIO_REG_RESET, BIT(offset)); ++} ++ ++static int ralink_gpio_get(struct gpio_chip *chip, unsigned offset) ++{ ++ struct ralink_gpio_chip *rg = to_ralink_gpio(chip); ++ ++ return !!(rt_gpio_r32(rg, GPIO_REG_DATA) & BIT(offset)); ++} ++ ++static int ralink_gpio_direction_input(struct gpio_chip *chip, unsigned offset) ++{ ++ struct ralink_gpio_chip *rg = to_ralink_gpio(chip); ++ unsigned long flags; ++ u32 t; ++ ++ spin_lock_irqsave(&rg->lock, flags); ++ t = rt_gpio_r32(rg, GPIO_REG_DIR); ++ t &= ~BIT(offset); ++ rt_gpio_w32(rg, GPIO_REG_DIR, t); ++ spin_unlock_irqrestore(&rg->lock, flags); ++ ++ return 0; ++} ++ ++static int ralink_gpio_direction_output(struct gpio_chip *chip, ++ unsigned offset, int value) ++{ ++ struct ralink_gpio_chip *rg = to_ralink_gpio(chip); ++ unsigned long flags; ++ u32 t; ++ ++ spin_lock_irqsave(&rg->lock, flags); ++ ralink_gpio_set(chip, offset, value); ++ t = rt_gpio_r32(rg, GPIO_REG_DIR); ++ t |= BIT(offset); ++ rt_gpio_w32(rg, GPIO_REG_DIR, t); ++ spin_unlock_irqrestore(&rg->lock, flags); ++ ++ return 0; ++} ++ ++static int ralink_gpio_to_irq(struct gpio_chip *chip, unsigned pin) ++{ ++ struct ralink_gpio_chip *rg = to_ralink_gpio(chip); ++ ++ if (rg->irq < 1) ++ return -1; ++ ++ return irq_create_mapping(rg->domain, pin); ++} ++ ++static void ralink_gpio_irq_handler(struct irq_desc *desc) ++{ ++ int i; ++ ++ for (i = 0; i < irq_map_count; i++) { ++ struct irq_domain *domain = irq_map[i]; ++ struct ralink_gpio_chip *rg; ++ unsigned long pending; ++ int bit; ++ ++ rg = (struct ralink_gpio_chip *) domain->host_data; ++ pending = rt_gpio_r32(rg, GPIO_REG_INT); ++ ++ for_each_set_bit(bit, &pending, rg->chip.ngpio) { ++ u32 map = irq_find_mapping(domain, bit); ++ generic_handle_irq(map); ++ rt_gpio_w32(rg, GPIO_REG_INT, BIT(bit)); ++ } ++ } ++} ++ ++static void ralink_gpio_irq_unmask(struct irq_data *d) ++{ ++ struct ralink_gpio_chip *rg; ++ unsigned long flags; ++ u32 rise, fall; ++ ++ rg = (struct ralink_gpio_chip *) d->domain->host_data; ++ rise = rt_gpio_r32(rg, GPIO_REG_RENA); ++ fall = rt_gpio_r32(rg, GPIO_REG_FENA); ++ ++ spin_lock_irqsave(&rg->lock, flags); ++ rt_gpio_w32(rg, GPIO_REG_RENA, rise | (BIT(d->hwirq) & rg->rising)); ++ rt_gpio_w32(rg, GPIO_REG_FENA, fall | (BIT(d->hwirq) & rg->falling)); ++ spin_unlock_irqrestore(&rg->lock, flags); ++} ++ ++static void ralink_gpio_irq_mask(struct irq_data *d) ++{ ++ struct ralink_gpio_chip *rg; ++ unsigned long flags; ++ u32 rise, fall; ++ ++ rg = (struct ralink_gpio_chip *) d->domain->host_data; ++ rise = rt_gpio_r32(rg, GPIO_REG_RENA); ++ fall = rt_gpio_r32(rg, GPIO_REG_FENA); ++ ++ spin_lock_irqsave(&rg->lock, flags); ++ rt_gpio_w32(rg, GPIO_REG_FENA, fall & ~BIT(d->hwirq)); ++ rt_gpio_w32(rg, GPIO_REG_RENA, rise & ~BIT(d->hwirq)); ++ spin_unlock_irqrestore(&rg->lock, flags); ++} ++ ++static int ralink_gpio_irq_type(struct irq_data *d, unsigned int type) ++{ ++ struct ralink_gpio_chip *rg; ++ u32 mask = BIT(d->hwirq); ++ ++ rg = (struct ralink_gpio_chip *) d->domain->host_data; ++ ++ if (type == IRQ_TYPE_PROBE) { ++ if ((rg->rising | rg->falling) & mask) ++ return 0; ++ ++ type = IRQ_TYPE_EDGE_RISING | IRQ_TYPE_EDGE_FALLING; ++ } ++ ++ if (type & IRQ_TYPE_EDGE_RISING) ++ rg->rising |= mask; ++ else ++ rg->rising &= ~mask; ++ ++ if (type & IRQ_TYPE_EDGE_FALLING) ++ rg->falling |= mask; ++ else ++ rg->falling &= ~mask; ++ ++ return 0; ++} ++ ++static struct irq_chip ralink_gpio_irq_chip = { ++ .name = "GPIO", ++ .irq_unmask = ralink_gpio_irq_unmask, ++ .irq_mask = ralink_gpio_irq_mask, ++ .irq_mask_ack = ralink_gpio_irq_mask, ++ .irq_set_type = ralink_gpio_irq_type, ++}; ++ ++static int gpio_map(struct irq_domain *d, unsigned int irq, irq_hw_number_t hw) ++{ ++ irq_set_chip_and_handler(irq, &ralink_gpio_irq_chip, handle_level_irq); ++ irq_set_handler_data(irq, d); ++ ++ return 0; ++} ++ ++static const struct irq_domain_ops irq_domain_ops = { ++ .xlate = irq_domain_xlate_onecell, ++ .map = gpio_map, ++}; ++ ++static void ralink_gpio_irq_init(struct device_node *np, ++ struct ralink_gpio_chip *rg) ++{ ++ if (irq_map_count >= MAP_MAX) ++ return; ++ ++ rg->irq = irq_of_parse_and_map(np, 0); ++ if (!rg->irq) ++ return; ++ ++ rg->domain = irq_domain_add_linear(np, rg->chip.ngpio, ++ &irq_domain_ops, rg); ++ if (!rg->domain) { ++ dev_err(rg->chip.parent, "irq_domain_add_linear failed\n"); ++ return; ++ } ++ ++ irq_map[irq_map_count++] = rg->domain; ++ ++ rt_gpio_w32(rg, GPIO_REG_RENA, 0x0); ++ rt_gpio_w32(rg, GPIO_REG_FENA, 0x0); ++ ++ if (!atomic_read(&irq_refcount)) ++ irq_set_chained_handler(rg->irq, ralink_gpio_irq_handler); ++ atomic_inc(&irq_refcount); ++ ++ dev_info(rg->chip.parent, "registering %d irq handlers\n", rg->chip.ngpio); ++} ++ ++static int ralink_gpio_probe(struct platform_device *pdev) ++{ ++ struct device_node *np = pdev->dev.of_node; ++ struct resource *res = platform_get_resource(pdev, IORESOURCE_MEM, 0); ++ struct ralink_gpio_chip *rg; ++ const __be32 *ngpio, *gpiobase; ++ ++ if (!res) { ++ dev_err(&pdev->dev, "failed to find resource\n"); ++ return -ENOMEM; ++ } ++ ++ rg = devm_kzalloc(&pdev->dev, ++ sizeof(struct ralink_gpio_chip), GFP_KERNEL); ++ if (!rg) ++ return -ENOMEM; ++ ++ rg->membase = devm_ioremap_resource(&pdev->dev, res); ++ if (!rg->membase) { ++ dev_err(&pdev->dev, "cannot remap I/O memory region\n"); ++ return -ENOMEM; ++ } ++ ++ if (of_property_read_u8_array(np, "ralink,register-map", ++ rg->regs, GPIO_REG_MAX)) { ++ dev_err(&pdev->dev, "failed to read register definition\n"); ++ return -EINVAL; ++ } ++ ++ ngpio = of_get_property(np, "ngpios", NULL); ++ if (!ngpio) { ++ dev_err(&pdev->dev, "failed to read number of pins\n"); ++ return -EINVAL; ++ } ++ ++ gpiobase = of_get_property(np, "ralink,gpio-base", NULL); ++ if (gpiobase) ++ rg->chip.base = be32_to_cpu(*gpiobase); ++ else ++ rg->chip.base = -1; ++ ++ spin_lock_init(&rg->lock); ++ ++ rg->chip.parent = &pdev->dev; ++ rg->chip.label = dev_name(&pdev->dev); ++ rg->chip.of_node = np; ++ rg->chip.ngpio = be32_to_cpu(*ngpio); ++ rg->chip.direction_input = ralink_gpio_direction_input; ++ rg->chip.direction_output = ralink_gpio_direction_output; ++ rg->chip.get = ralink_gpio_get; ++ rg->chip.set = ralink_gpio_set; ++ rg->chip.request = gpiochip_generic_request; ++ rg->chip.to_irq = ralink_gpio_to_irq; ++ rg->chip.free = gpiochip_generic_free; ++ ++ /* set polarity to low for all lines */ ++ rt_gpio_w32(rg, GPIO_REG_POL, 0); ++ ++ dev_info(&pdev->dev, "registering %d gpios\n", rg->chip.ngpio); ++ ++ ralink_gpio_irq_init(np, rg); ++ ++ return gpiochip_add(&rg->chip); ++} ++ ++static const struct of_device_id ralink_gpio_match[] = { ++ { .compatible = "ralink,rt2880-gpio" }, ++ {}, ++}; ++MODULE_DEVICE_TABLE(of, ralink_gpio_match); ++ ++static struct platform_driver ralink_gpio_driver = { ++ .probe = ralink_gpio_probe, ++ .driver = { ++ .name = "rt2880_gpio", ++ .owner = THIS_MODULE, ++ .of_match_table = ralink_gpio_match, ++ }, ++}; ++ ++static int __init ralink_gpio_init(void) ++{ ++ return platform_driver_register(&ralink_gpio_driver); ++} ++ ++subsys_initcall(ralink_gpio_init); diff --git a/target/linux/ramips/patches-5.15/803-gpio-ralink-Add-support-for-GPIO-as-interrupt-contro.patch b/target/linux/ramips/patches-5.15/803-gpio-ralink-Add-support-for-GPIO-as-interrupt-contro.patch new file mode 100644 index 0000000000..8520ce32ff --- /dev/null +++ b/target/linux/ramips/patches-5.15/803-gpio-ralink-Add-support-for-GPIO-as-interrupt-contro.patch @@ -0,0 +1,44 @@ +From 57fa7f2f4ef6f78ce1d30509c0d111aa3791b524 Mon Sep 17 00:00:00 2001 +From: Daniel Santos <daniel.santos@pobox.com> +Date: Sun, 4 Nov 2018 20:24:32 -0600 +Subject: gpio-ralink: Add support for GPIO as interrupt-controller + +Signed-off-by: Daniel Santos <daniel.santos@pobox.com> +--- + Documentation/devicetree/bindings/gpio/gpio-ralink.txt | 6 ++++++ + drivers/gpio/gpio-ralink.c | 2 +- + 2 files changed, 7 insertions(+), 1 deletion(-) + +--- a/Documentation/devicetree/bindings/gpio/gpio-ralink.txt ++++ b/Documentation/devicetree/bindings/gpio/gpio-ralink.txt +@@ -17,6 +17,9 @@ Required properties: + + Optional properties: + - ralink,gpio-base : Specify the GPIO chips base number ++- interrupt-controller : marks this as an interrupt controller ++- #interrupt-cells : a standard two-cell interrupt flag, see ++ interrupt-controller/interrupts.txt + + Example: + +@@ -28,6 +31,9 @@ Example: + + reg = <0x600 0x34>; + ++ interrupt-controller; ++ #interrupt-cells = <2>; ++ + interrupt-parent = <&intc>; + interrupts = <6>; + +--- a/drivers/gpio/gpio-ralink.c ++++ b/drivers/gpio/gpio-ralink.c +@@ -220,7 +220,7 @@ static int gpio_map(struct irq_domain *d + } + + static const struct irq_domain_ops irq_domain_ops = { +- .xlate = irq_domain_xlate_onecell, ++ .xlate = irq_domain_xlate_twocell, + .map = gpio_map, + }; + diff --git a/target/linux/ramips/patches-5.15/805-pinctrl-AW9523.patch b/target/linux/ramips/patches-5.15/805-pinctrl-AW9523.patch new file mode 100644 index 0000000000..34220acdd1 --- /dev/null +++ b/target/linux/ramips/patches-5.15/805-pinctrl-AW9523.patch @@ -0,0 +1,72 @@ +From: AngeloGioacchino Del Regno + <angelogioacchino.delregno@somainline.org> +To: linus.walleij@linaro.org +Cc: linux-kernel@vger.kernel.org, konrad.dybcio@somainline.org, + marijn.suijten@somainline.org, martin.botka@somainline.org, + phone-devel@vger.kernel.org, linux-gpio@vger.kernel.org, + devicetree@vger.kernel.org, robh+dt@kernel.org, + AngeloGioacchino Del Regno + <angelogioacchino.delregno@somainline.org> +Subject: [PATCH v5 1/2] pinctrl: Add driver for Awinic AW9523/B I2C GPIO + Expander +Date: Mon, 25 Jan 2021 19:22:18 +0100 + +The Awinic AW9523(B) is a multi-function I2C gpio expander in a +TQFN-24L package, featuring PWM (max 37mA per pin, or total max +power 3.2Watts) for LED driving capability. + +It has two ports with 8 pins per port (for a total of 16 pins), +configurable as either PWM with 1/256 stepping or GPIO input/output, +1.8V logic input; each GPIO can be configured as input or output +independently from each other. + +This IC also has an internal interrupt controller, which is capable +of generating an interrupt for each GPIO, depending on the +configuration, and will raise an interrupt on the INTN pin to +advertise this to an external interrupt controller. + +Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@somainline.org> +--- + drivers/pinctrl/Kconfig | 17 + + drivers/pinctrl/Makefile | 1 + + drivers/pinctrl/pinctrl-aw9523.c | 1122 ++++++++++++++++++++++++++++++ + 3 files changed, 1140 insertions(+) + create mode 100644 drivers/pinctrl/pinctrl-aw9523.c + +--- a/drivers/pinctrl/Kconfig ++++ b/drivers/pinctrl/Kconfig +@@ -111,6 +111,24 @@ config PINCTRL_AMD + Requires ACPI/FDT device enumeration code to set up a platform + device. + ++config PINCTRL_AW9523 ++ bool "Awinic AW9523/AW9523B I2C GPIO expander pinctrl driver" ++ depends on OF && I2C ++ select PINMUX ++ select PINCONF ++ select GENERIC_PINCONF ++ select GPIOLIB ++ select GPIOLIB_IRQCHIP ++ select REGMAP ++ select REGMAP_I2C ++ help ++ The Awinic AW9523/AW9523B is a multi-function I2C GPIO ++ expander with PWM functionality. This driver bundles a ++ pinctrl driver to select the function muxing and a GPIO ++ driver to handle GPIO, when the GPIO function is selected. ++ ++ Say yes to enable pinctrl and GPIO support for the AW9523(B). ++ + config PINCTRL_BM1880 + bool "Bitmain BM1880 Pinctrl driver" + depends on OF && (ARCH_BITMAIN || COMPILE_TEST) +--- a/drivers/pinctrl/Makefile ++++ b/drivers/pinctrl/Makefile +@@ -14,6 +14,7 @@ obj-$(CONFIG_PINCTRL_AXP209) += pinctrl- + obj-$(CONFIG_PINCTRL_AT91) += pinctrl-at91.o + obj-$(CONFIG_PINCTRL_AT91PIO4) += pinctrl-at91-pio4.o + obj-$(CONFIG_PINCTRL_AMD) += pinctrl-amd.o ++obj-$(CONFIG_PINCTRL_AW9523) += pinctrl-aw9523.o + obj-$(CONFIG_PINCTRL_BM1880) += pinctrl-bm1880.o + obj-$(CONFIG_PINCTRL_DA850_PUPD) += pinctrl-da850-pupd.o + obj-$(CONFIG_PINCTRL_DA9062) += pinctrl-da9062.o diff --git a/target/linux/ramips/patches-5.15/810-uvc-add-iPassion-iP2970-support.patch b/target/linux/ramips/patches-5.15/810-uvc-add-iPassion-iP2970-support.patch new file mode 100644 index 0000000000..ae7e886f94 --- /dev/null +++ b/target/linux/ramips/patches-5.15/810-uvc-add-iPassion-iP2970-support.patch @@ -0,0 +1,246 @@ +From 975e76214cd2516eb6cfff4c3eec581872645e88 Mon Sep 17 00:00:00 2001 +From: John Crispin <blogic@openwrt.org> +Date: Thu, 19 Sep 2013 01:50:59 +0200 +Subject: [PATCH 31/53] uvc: add iPassion iP2970 support + +Signed-off-by: John Crispin <blogic@openwrt.org> +--- + drivers/media/usb/uvc/uvc_driver.c | 12 +++ + drivers/media/usb/uvc/uvc_status.c | 2 + + drivers/media/usb/uvc/uvc_video.c | 147 ++++++++++++++++++++++++++++++++++++ + drivers/media/usb/uvc/uvcvideo.h | 5 +- + 4 files changed, 165 insertions(+), 1 deletion(-) + +--- a/drivers/media/usb/uvc/uvc_driver.c ++++ b/drivers/media/usb/uvc/uvc_driver.c +@@ -3164,6 +3164,18 @@ static const struct usb_device_id uvc_id + .bInterfaceSubClass = 1, + .bInterfaceProtocol = 0, + .driver_info = UVC_INFO_META(V4L2_META_FMT_D4XX) }, ++ /* iPassion iP2970 */ ++ { .match_flags = USB_DEVICE_ID_MATCH_DEVICE ++ | USB_DEVICE_ID_MATCH_INT_INFO, ++ .idVendor = 0x1B3B, ++ .idProduct = 0x2970, ++ .bInterfaceClass = USB_CLASS_VIDEO, ++ .bInterfaceSubClass = 1, ++ .bInterfaceProtocol = 0, ++ .driver_info = UVC_QUIRK_PROBE_MINMAX ++ | UVC_QUIRK_STREAM_NO_FID ++ | UVC_QUIRK_MOTION ++ | UVC_QUIRK_SINGLE_ISO }, + /* Generic USB Video Class */ + { USB_INTERFACE_INFO(USB_CLASS_VIDEO, 1, UVC_PC_PROTOCOL_UNDEFINED) }, + { USB_INTERFACE_INFO(USB_CLASS_VIDEO, 1, UVC_PC_PROTOCOL_15) }, +--- a/drivers/media/usb/uvc/uvc_status.c ++++ b/drivers/media/usb/uvc/uvc_status.c +@@ -223,6 +223,7 @@ static void uvc_status_complete(struct u + if (uvc_event_control(urb, status, len)) + /* The URB will be resubmitted in work context. */ + return; ++ dev->motion = 1; + break; + } + +@@ -271,6 +272,7 @@ int uvc_status_init(struct uvc_device *d + } + + pipe = usb_rcvintpipe(dev->udev, ep->desc.bEndpointAddress); ++ dev->motion = 0; + + /* For high-speed interrupt endpoints, the bInterval value is used as + * an exponent of two. Some developers forgot about it. +--- a/drivers/media/usb/uvc/uvc_video.c ++++ b/drivers/media/usb/uvc/uvc_video.c +@@ -19,6 +19,11 @@ + #include <linux/wait.h> + #include <linux/atomic.h> + #include <asm/unaligned.h> ++#include <linux/skbuff.h> ++#include <linux/kobject.h> ++#include <linux/netlink.h> ++#include <linux/kobject.h> ++#include <linux/workqueue.h> + + #include <media/v4l2-common.h> + +@@ -1214,9 +1219,149 @@ static void uvc_video_decode_data(struct + uvc_urb->async_operations++; + } + ++struct bh_priv { ++ unsigned long seen; ++}; ++ ++struct bh_event { ++ const char *name; ++ struct sk_buff *skb; ++ struct work_struct work; ++}; ++ ++#define BH_ERR(fmt, args...) printk(KERN_ERR "%s: " fmt, "webcam", ##args ) ++#define BH_DBG(fmt, args...) do {} while (0) ++#define BH_SKB_SIZE 2048 ++ ++extern u64 uevent_next_seqnum(void); ++static int seen = 0; ++ ++static int bh_event_add_var(struct bh_event *event, int argv, ++ const char *format, ...) ++{ ++ static char buf[128]; ++ char *s; ++ va_list args; ++ int len; ++ ++ if (argv) ++ return 0; ++ ++ va_start(args, format); ++ len = vsnprintf(buf, sizeof(buf), format, args); ++ va_end(args); ++ ++ if (len >= sizeof(buf)) { ++ BH_ERR("buffer size too small\n"); ++ WARN_ON(1); ++ return -ENOMEM; ++ } ++ ++ s = skb_put(event->skb, len + 1); ++ strcpy(s, buf); ++ ++ BH_DBG("added variable '%s'\n", s); ++ ++ return 0; ++} ++ ++static int motion_hotplug_fill_event(struct bh_event *event) ++{ ++ int s = jiffies; ++ int ret; ++ ++ if (!seen) ++ seen = jiffies; ++ ++ ret = bh_event_add_var(event, 0, "HOME=%s", "/"); ++ if (ret) ++ return ret; ++ ++ ret = bh_event_add_var(event, 0, "PATH=%s", ++ "/sbin:/bin:/usr/sbin:/usr/bin"); ++ if (ret) ++ return ret; ++ ++ ret = bh_event_add_var(event, 0, "SUBSYSTEM=usb"); ++ if (ret) ++ return ret; ++ ++ ret = bh_event_add_var(event, 0, "ACTION=motion"); ++ if (ret) ++ return ret; ++ ++ ret = bh_event_add_var(event, 0, "SEEN=%d", s - seen); ++ if (ret) ++ return ret; ++ seen = s; ++ ++ ret = bh_event_add_var(event, 0, "SEQNUM=%llu", uevent_next_seqnum()); ++ ++ return ret; ++} ++ ++static void motion_hotplug_work(struct work_struct *work) ++{ ++ struct bh_event *event = container_of(work, struct bh_event, work); ++ int ret = 0; ++ ++ event->skb = alloc_skb(BH_SKB_SIZE, GFP_KERNEL); ++ if (!event->skb) ++ goto out_free_event; ++ ++ ret = bh_event_add_var(event, 0, "%s@", "add"); ++ if (ret) ++ goto out_free_skb; ++ ++ ret = motion_hotplug_fill_event(event); ++ if (ret) ++ goto out_free_skb; ++ ++ NETLINK_CB(event->skb).dst_group = 1; ++ broadcast_uevent(event->skb, 0, 1, GFP_KERNEL); ++ ++out_free_skb: ++ if (ret) { ++ BH_ERR("work error %d\n", ret); ++ kfree_skb(event->skb); ++ } ++out_free_event: ++ kfree(event); ++} ++ ++static int motion_hotplug_create_event(void) ++{ ++ struct bh_event *event; ++ ++ event = kzalloc(sizeof(*event), GFP_KERNEL); ++ if (!event) ++ return -ENOMEM; ++ ++ event->name = "motion"; ++ ++ INIT_WORK(&event->work, (void *)(void *)motion_hotplug_work); ++ schedule_work(&event->work); ++ ++ return 0; ++} ++ ++#define MOTION_FLAG_OFFSET 4 + static void uvc_video_decode_end(struct uvc_streaming *stream, + struct uvc_buffer *buf, const u8 *data, int len) + { ++ if ((stream->dev->quirks & UVC_QUIRK_MOTION) && ++ (data[len - 2] == 0xff) && (data[len - 1] == 0xd9)) { ++ u8 *mem; ++ buf->state = UVC_BUF_STATE_READY; ++ mem = (u8 *) (buf->mem + MOTION_FLAG_OFFSET); ++ if ( stream->dev->motion ) { ++ stream->dev->motion = 0; ++ motion_hotplug_create_event(); ++ } else { ++ *mem &= 0x7f; ++ } ++ } ++ + /* Mark the buffer as done if the EOF marker is set. */ + if (data[1] & UVC_STREAM_EOF && buf->bytesused != 0) { + uvc_dbg(stream->dev, FRAME, "Frame complete (EOF found)\n"); +@@ -1799,6 +1944,8 @@ static int uvc_init_video_isoc(struct uv + if (npackets == 0) + return -ENOMEM; + ++ if (stream->dev->quirks & UVC_QUIRK_SINGLE_ISO) ++ npackets = 1; + size = npackets * psize; + + for_each_uvc_urb(uvc_urb, stream) { +--- a/drivers/media/usb/uvc/uvcvideo.h ++++ b/drivers/media/usb/uvc/uvcvideo.h +@@ -209,7 +209,9 @@ + #define UVC_QUIRK_RESTORE_CTRLS_ON_INIT 0x00000400 + #define UVC_QUIRK_FORCE_Y8 0x00000800 + #define UVC_QUIRK_FORCE_BPP 0x00001000 +- ++#define UVC_QUIRK_MOTION 0x00001000 ++#define UVC_QUIRK_SINGLE_ISO 0x00002000 ++ + /* Format flags */ + #define UVC_FMT_FLAG_COMPRESSED 0x00000001 + #define UVC_FMT_FLAG_STREAM 0x00000002 +@@ -700,6 +702,7 @@ struct uvc_device { + u8 *status; + struct input_dev *input; + char input_phys[64]; ++ int motion; + + struct uvc_ctrl_work { + struct work_struct work; diff --git a/target/linux/ramips/patches-5.15/820-DT-Add-documentation-for-spi-rt2880.patch b/target/linux/ramips/patches-5.15/820-DT-Add-documentation-for-spi-rt2880.patch new file mode 100644 index 0000000000..e2643e3f25 --- /dev/null +++ b/target/linux/ramips/patches-5.15/820-DT-Add-documentation-for-spi-rt2880.patch @@ -0,0 +1,44 @@ +From da6015e7f19d749f135f7ac55c4ec47b06faa868 Mon Sep 17 00:00:00 2001 +From: John Crispin <blogic@openwrt.org> +Date: Fri, 9 Aug 2013 20:12:59 +0200 +Subject: [PATCH 41/53] DT: Add documentation for spi-rt2880 + +Describe the SPI master found on the MIPS based Ralink RT2880 SoC. + +Signed-off-by: John Crispin <blogic@openwrt.org> +--- + .../devicetree/bindings/spi/spi-rt2880.txt | 28 ++++++++++++++++++++ + 1 file changed, 28 insertions(+) + create mode 100644 Documentation/devicetree/bindings/spi/spi-rt2880.txt + +--- /dev/null ++++ b/Documentation/devicetree/bindings/spi/spi-rt2880.txt +@@ -0,0 +1,28 @@ ++Ralink SoC RT2880 SPI master controller. ++ ++This SPI controller is found on most wireless SoCs made by ralink. ++ ++Required properties: ++- compatible : "ralink,rt2880-spi" ++- reg : The register base for the controller. ++- #address-cells : <1>, as required by generic SPI binding. ++- #size-cells : <0>, also as required by generic SPI binding. ++ ++Child nodes as per the generic SPI binding. ++ ++Example: ++ ++ spi@b00 { ++ compatible = "ralink,rt2880-spi"; ++ reg = <0xb00 0x100>; ++ ++ #address-cells = <1>; ++ #size-cells = <0>; ++ ++ m25p80@0 { ++ compatible = "m25p80"; ++ reg = <0>; ++ spi-max-frequency = <10000000>; ++ }; ++ }; ++ diff --git a/target/linux/ramips/patches-5.15/821-SPI-ralink-add-Ralink-SoC-spi-driver.patch b/target/linux/ramips/patches-5.15/821-SPI-ralink-add-Ralink-SoC-spi-driver.patch new file mode 100644 index 0000000000..342350d0c6 --- /dev/null +++ b/target/linux/ramips/patches-5.15/821-SPI-ralink-add-Ralink-SoC-spi-driver.patch @@ -0,0 +1,574 @@ +From 683af4ebb91a1600df1946ac4769d916b8a1be65 Mon Sep 17 00:00:00 2001 +From: John Crispin <blogic@openwrt.org> +Date: Sun, 27 Jul 2014 11:15:12 +0100 +Subject: [PATCH 42/53] SPI: ralink: add Ralink SoC spi driver + +Add the driver needed to make SPI work on Ralink SoC. + +Signed-off-by: Gabor Juhos <juhosg@openwrt.org> +Acked-by: John Crispin <blogic@openwrt.org> +--- + drivers/spi/Kconfig | 6 + + drivers/spi/Makefile | 1 + + drivers/spi/spi-rt2880.c | 530 ++++++++++++++++++++++++++++++++++++++++++++++ + 3 files changed, 537 insertions(+) + create mode 100644 drivers/spi/spi-rt2880.c + +--- a/drivers/spi/Kconfig ++++ b/drivers/spi/Kconfig +@@ -719,6 +719,12 @@ config SPI_QCOM_GENI + This driver can also be built as a module. If so, the module + will be called spi-geni-qcom. + ++config SPI_RT2880 ++ tristate "Ralink RT288x SPI Controller" ++ depends on RALINK ++ help ++ This selects a driver for the Ralink RT288x/RT305x SPI Controller. ++ + config SPI_S3C24XX + tristate "Samsung S3C24XX series SPI" + depends on ARCH_S3C24XX +--- a/drivers/spi/Makefile ++++ b/drivers/spi/Makefile +@@ -100,6 +100,7 @@ obj-$(CONFIG_SPI_RB4XX) += spi-rb4xx.o + obj-$(CONFIG_MACH_REALTEK_RTL) += spi-realtek-rtl.o + obj-$(CONFIG_SPI_RPCIF) += spi-rpc-if.o + obj-$(CONFIG_SPI_RSPI) += spi-rspi.o ++obj-$(CONFIG_SPI_RT2880) += spi-rt2880.o + obj-$(CONFIG_SPI_S3C24XX) += spi-s3c24xx-hw.o + spi-s3c24xx-hw-y := spi-s3c24xx.o + obj-$(CONFIG_SPI_S3C64XX) += spi-s3c64xx.o +--- /dev/null ++++ b/drivers/spi/spi-rt2880.c +@@ -0,0 +1,530 @@ ++/* ++ * spi-rt2880.c -- Ralink RT288x/RT305x SPI controller driver ++ * ++ * Copyright (C) 2011 Sergiy <piratfm@gmail.com> ++ * Copyright (C) 2011-2013 Gabor Juhos <juhosg@openwrt.org> ++ * ++ * Some parts are based on spi-orion.c: ++ * Author: Shadi Ammouri <shadi@marvell.com> ++ * Copyright (C) 2007-2008 Marvell Ltd. ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU General Public License version 2 as ++ * published by the Free Software Foundation. ++ */ ++ ++#include <linux/init.h> ++#include <linux/module.h> ++#include <linux/clk.h> ++#include <linux/err.h> ++#include <linux/delay.h> ++#include <linux/io.h> ++#include <linux/reset.h> ++#include <linux/spi/spi.h> ++#include <linux/platform_device.h> ++#include <linux/gpio.h> ++ ++#define DRIVER_NAME "spi-rt2880" ++ ++#define RAMIPS_SPI_STAT 0x00 ++#define RAMIPS_SPI_CFG 0x10 ++#define RAMIPS_SPI_CTL 0x14 ++#define RAMIPS_SPI_DATA 0x20 ++#define RAMIPS_SPI_ADDR 0x24 ++#define RAMIPS_SPI_BS 0x28 ++#define RAMIPS_SPI_USER 0x2C ++#define RAMIPS_SPI_TXFIFO 0x30 ++#define RAMIPS_SPI_RXFIFO 0x34 ++#define RAMIPS_SPI_FIFO_STAT 0x38 ++#define RAMIPS_SPI_MODE 0x3C ++#define RAMIPS_SPI_DEV_OFFSET 0x40 ++#define RAMIPS_SPI_DMA 0x80 ++#define RAMIPS_SPI_DMASTAT 0x84 ++#define RAMIPS_SPI_ARBITER 0xF0 ++ ++/* SPISTAT register bit field */ ++#define SPISTAT_BUSY BIT(0) ++ ++/* SPICFG register bit field */ ++#define SPICFG_ADDRMODE BIT(12) ++#define SPICFG_RXENVDIS BIT(11) ++#define SPICFG_RXCAP BIT(10) ++#define SPICFG_SPIENMODE BIT(9) ++#define SPICFG_MSBFIRST BIT(8) ++#define SPICFG_SPICLKPOL BIT(6) ++#define SPICFG_RXCLKEDGE_FALLING BIT(5) ++#define SPICFG_TXCLKEDGE_FALLING BIT(4) ++#define SPICFG_HIZSPI BIT(3) ++#define SPICFG_SPICLK_PRESCALE_MASK 0x7 ++#define SPICFG_SPICLK_DIV2 0 ++#define SPICFG_SPICLK_DIV4 1 ++#define SPICFG_SPICLK_DIV8 2 ++#define SPICFG_SPICLK_DIV16 3 ++#define SPICFG_SPICLK_DIV32 4 ++#define SPICFG_SPICLK_DIV64 5 ++#define SPICFG_SPICLK_DIV128 6 ++#define SPICFG_SPICLK_DISABLE 7 ++ ++/* SPICTL register bit field */ ++#define SPICTL_START BIT(4) ++#define SPICTL_HIZSDO BIT(3) ++#define SPICTL_STARTWR BIT(2) ++#define SPICTL_STARTRD BIT(1) ++#define SPICTL_SPIENA BIT(0) ++ ++/* SPIUSER register bit field */ ++#define SPIUSER_USERMODE BIT(21) ++#define SPIUSER_INSTR_PHASE BIT(20) ++#define SPIUSER_ADDR_PHASE_MASK 0x7 ++#define SPIUSER_ADDR_PHASE_OFFSET 17 ++#define SPIUSER_MODE_PHASE BIT(16) ++#define SPIUSER_DUMMY_PHASE_MASK 0x3 ++#define SPIUSER_DUMMY_PHASE_OFFSET 14 ++#define SPIUSER_DATA_PHASE_MASK 0x3 ++#define SPIUSER_DATA_PHASE_OFFSET 12 ++#define SPIUSER_DATA_READ (BIT(0) << SPIUSER_DATA_PHASE_OFFSET) ++#define SPIUSER_DATA_WRITE (BIT(1) << SPIUSER_DATA_PHASE_OFFSET) ++#define SPIUSER_ADDR_TYPE_OFFSET 9 ++#define SPIUSER_MODE_TYPE_OFFSET 6 ++#define SPIUSER_DUMMY_TYPE_OFFSET 3 ++#define SPIUSER_DATA_TYPE_OFFSET 0 ++#define SPIUSER_TRANSFER_MASK 0x7 ++#define SPIUSER_TRANSFER_SINGLE BIT(0) ++#define SPIUSER_TRANSFER_DUAL BIT(1) ++#define SPIUSER_TRANSFER_QUAD BIT(2) ++ ++#define SPIUSER_TRANSFER_TYPE(type) ( \ ++ (type << SPIUSER_ADDR_TYPE_OFFSET) | \ ++ (type << SPIUSER_MODE_TYPE_OFFSET) | \ ++ (type << SPIUSER_DUMMY_TYPE_OFFSET) | \ ++ (type << SPIUSER_DATA_TYPE_OFFSET) \ ++) ++ ++/* SPIFIFOSTAT register bit field */ ++#define SPIFIFOSTAT_TXEMPTY BIT(19) ++#define SPIFIFOSTAT_RXEMPTY BIT(18) ++#define SPIFIFOSTAT_TXFULL BIT(17) ++#define SPIFIFOSTAT_RXFULL BIT(16) ++#define SPIFIFOSTAT_FIFO_MASK 0xff ++#define SPIFIFOSTAT_TX_OFFSET 8 ++#define SPIFIFOSTAT_RX_OFFSET 0 ++ ++#define SPI_FIFO_DEPTH 16 ++ ++/* SPIMODE register bit field */ ++#define SPIMODE_MODE_OFFSET 24 ++#define SPIMODE_DUMMY_OFFSET 0 ++ ++/* SPIARB register bit field */ ++#define SPICTL_ARB_EN BIT(31) ++#define SPICTL_CSCTL1 BIT(16) ++#define SPI1_POR BIT(1) ++#define SPI0_POR BIT(0) ++ ++#define RT2880_SPI_MODE_BITS (SPI_CPOL | SPI_CPHA | SPI_LSB_FIRST | \ ++ SPI_CS_HIGH) ++ ++static atomic_t hw_reset_count = ATOMIC_INIT(0); ++ ++struct rt2880_spi { ++ struct spi_master *master; ++ void __iomem *base; ++ u32 speed; ++ u16 wait_loops; ++ u16 mode; ++ struct clk *clk; ++}; ++ ++static inline struct rt2880_spi *spidev_to_rt2880_spi(struct spi_device *spi) ++{ ++ return spi_master_get_devdata(spi->master); ++} ++ ++static inline u32 rt2880_spi_read(struct rt2880_spi *rs, u32 reg) ++{ ++ return ioread32(rs->base + reg); ++} ++ ++static inline void rt2880_spi_write(struct rt2880_spi *rs, u32 reg, ++ const u32 val) ++{ ++ iowrite32(val, rs->base + reg); ++} ++ ++static inline void rt2880_spi_setbits(struct rt2880_spi *rs, u32 reg, u32 mask) ++{ ++ void __iomem *addr = rs->base + reg; ++ ++ iowrite32((ioread32(addr) | mask), addr); ++} ++ ++static inline void rt2880_spi_clrbits(struct rt2880_spi *rs, u32 reg, u32 mask) ++{ ++ void __iomem *addr = rs->base + reg; ++ ++ iowrite32((ioread32(addr) & ~mask), addr); ++} ++ ++static u32 rt2880_spi_baudrate_get(struct spi_device *spi, unsigned int speed) ++{ ++ struct rt2880_spi *rs = spidev_to_rt2880_spi(spi); ++ u32 rate; ++ u32 prescale; ++ ++ /* ++ * the supported rates are: 2, 4, 8, ... 128 ++ * round up as we look for equal or less speed ++ */ ++ rate = DIV_ROUND_UP(clk_get_rate(rs->clk), speed); ++ rate = roundup_pow_of_two(rate); ++ ++ /* Convert the rate to SPI clock divisor value. */ ++ prescale = ilog2(rate / 2); ++ ++ /* some tolerance. double and add 100 */ ++ rs->wait_loops = (8 * HZ * loops_per_jiffy) / ++ (clk_get_rate(rs->clk) / rate); ++ rs->wait_loops = (rs->wait_loops << 1) + 100; ++ rs->speed = speed; ++ ++ dev_dbg(&spi->dev, "speed: %lu/%u, rate: %u, prescal: %u, loops: %hu\n", ++ clk_get_rate(rs->clk) / rate, speed, rate, prescale, ++ rs->wait_loops); ++ ++ return prescale; ++} ++ ++static u32 get_arbiter_offset(struct spi_master *master) ++{ ++ u32 offset; ++ ++ offset = RAMIPS_SPI_ARBITER; ++ if (master->bus_num == 1) ++ offset -= RAMIPS_SPI_DEV_OFFSET; ++ ++ return offset; ++} ++ ++static void rt2880_spi_set_cs(struct spi_device *spi, bool enable) ++{ ++ struct rt2880_spi *rs = spidev_to_rt2880_spi(spi); ++ ++ if (enable) ++ rt2880_spi_setbits(rs, RAMIPS_SPI_CTL, SPICTL_SPIENA); ++ else ++ rt2880_spi_clrbits(rs, RAMIPS_SPI_CTL, SPICTL_SPIENA); ++} ++ ++static int rt2880_spi_wait_ready(struct rt2880_spi *rs, int len) ++{ ++ int loop = rs->wait_loops * len; ++ ++ while ((rt2880_spi_read(rs, RAMIPS_SPI_STAT) & SPISTAT_BUSY) && --loop) ++ cpu_relax(); ++ ++ if (loop) ++ return 0; ++ ++ return -ETIMEDOUT; ++} ++ ++static void rt2880_dump_reg(struct spi_master *master) ++{ ++ struct rt2880_spi *rs = spi_master_get_devdata(master); ++ ++ dev_dbg(&master->dev, "stat: %08x, cfg: %08x, ctl: %08x, " \ ++ "data: %08x, arb: %08x\n", ++ rt2880_spi_read(rs, RAMIPS_SPI_STAT), ++ rt2880_spi_read(rs, RAMIPS_SPI_CFG), ++ rt2880_spi_read(rs, RAMIPS_SPI_CTL), ++ rt2880_spi_read(rs, RAMIPS_SPI_DATA), ++ rt2880_spi_read(rs, get_arbiter_offset(master))); ++} ++ ++static int rt2880_spi_transfer_one(struct spi_master *master, ++ struct spi_device *spi, struct spi_transfer *xfer) ++{ ++ struct rt2880_spi *rs = spi_master_get_devdata(master); ++ unsigned len; ++ const u8 *tx = xfer->tx_buf; ++ u8 *rx = xfer->rx_buf; ++ int err = 0; ++ ++ /* change clock speed */ ++ if (unlikely(rs->speed != xfer->speed_hz)) { ++ u32 reg; ++ reg = rt2880_spi_read(rs, RAMIPS_SPI_CFG); ++ reg &= ~SPICFG_SPICLK_PRESCALE_MASK; ++ reg |= rt2880_spi_baudrate_get(spi, xfer->speed_hz); ++ rt2880_spi_write(rs, RAMIPS_SPI_CFG, reg); ++ } ++ ++ if (tx) { ++ len = xfer->len; ++ while (len-- > 0) { ++ rt2880_spi_write(rs, RAMIPS_SPI_DATA, *tx++); ++ rt2880_spi_setbits(rs, RAMIPS_SPI_CTL, SPICTL_STARTWR); ++ err = rt2880_spi_wait_ready(rs, 1); ++ if (err) { ++ dev_err(&spi->dev, "TX failed, err=%d\n", err); ++ goto out; ++ } ++ } ++ } ++ ++ if (rx) { ++ len = xfer->len; ++ while (len-- > 0) { ++ rt2880_spi_setbits(rs, RAMIPS_SPI_CTL, SPICTL_STARTRD); ++ err = rt2880_spi_wait_ready(rs, 1); ++ if (err) { ++ dev_err(&spi->dev, "RX failed, err=%d\n", err); ++ goto out; ++ } ++ *rx++ = (u8) rt2880_spi_read(rs, RAMIPS_SPI_DATA); ++ } ++ } ++ ++out: ++ return err; ++} ++ ++/* copy from spi.c */ ++static void spi_set_cs(struct spi_device *spi, bool enable) ++{ ++ if (spi->mode & SPI_CS_HIGH) ++ enable = !enable; ++ ++ if (spi->cs_gpio >= 0) ++ gpio_set_value(spi->cs_gpio, !enable); ++ else if (spi->master->set_cs) ++ spi->master->set_cs(spi, !enable); ++} ++ ++static int rt2880_spi_setup(struct spi_device *spi) ++{ ++ struct spi_master *master = spi->master; ++ struct rt2880_spi *rs = spi_master_get_devdata(master); ++ u32 reg, old_reg, arbit_off; ++ ++ if ((spi->max_speed_hz > master->max_speed_hz) || ++ (spi->max_speed_hz < master->min_speed_hz)) { ++ dev_err(&spi->dev, "invalide requested speed %d Hz\n", ++ spi->max_speed_hz); ++ return -EINVAL; ++ } ++ ++ if (!(master->bits_per_word_mask & ++ BIT(spi->bits_per_word - 1))) { ++ dev_err(&spi->dev, "invalide bits_per_word %d\n", ++ spi->bits_per_word); ++ return -EINVAL; ++ } ++ ++ /* the hardware seems can't work on mode0 force it to mode3 */ ++ if ((spi->mode & (SPI_CPOL | SPI_CPHA)) == SPI_MODE_0) { ++ dev_warn(&spi->dev, "force spi mode3\n"); ++ spi->mode |= SPI_MODE_3; ++ } ++ ++ /* chip polarity */ ++ arbit_off = get_arbiter_offset(master); ++ reg = old_reg = rt2880_spi_read(rs, arbit_off); ++ if (spi->mode & SPI_CS_HIGH) { ++ switch (master->bus_num) { ++ case 1: ++ reg |= SPI1_POR; ++ break; ++ default: ++ reg |= SPI0_POR; ++ break; ++ } ++ } else { ++ switch (master->bus_num) { ++ case 1: ++ reg &= ~SPI1_POR; ++ break; ++ default: ++ reg &= ~SPI0_POR; ++ break; ++ } ++ } ++ ++ /* enable spi1 */ ++ if (master->bus_num == 1) ++ reg |= SPICTL_ARB_EN; ++ ++ if (reg != old_reg) ++ rt2880_spi_write(rs, arbit_off, reg); ++ ++ /* deselected the spi device */ ++ spi_set_cs(spi, false); ++ ++ rt2880_dump_reg(master); ++ ++ return 0; ++} ++ ++static int rt2880_spi_prepare_message(struct spi_master *master, ++ struct spi_message *msg) ++{ ++ struct rt2880_spi *rs = spi_master_get_devdata(master); ++ struct spi_device *spi = msg->spi; ++ u32 reg; ++ ++ if ((rs->mode == spi->mode) && (rs->speed == spi->max_speed_hz)) ++ return 0; ++ ++#if 0 ++ /* set spido to tri-state */ ++ rt2880_spi_setbits(rs, RAMIPS_SPI_CTL, SPICTL_HIZSDO); ++#endif ++ ++ reg = rt2880_spi_read(rs, RAMIPS_SPI_CFG); ++ ++ reg &= ~(SPICFG_MSBFIRST | SPICFG_SPICLKPOL | ++ SPICFG_RXCLKEDGE_FALLING | ++ SPICFG_TXCLKEDGE_FALLING | ++ SPICFG_SPICLK_PRESCALE_MASK); ++ ++ /* MSB */ ++ if (!(spi->mode & SPI_LSB_FIRST)) ++ reg |= SPICFG_MSBFIRST; ++ ++ /* spi mode */ ++ switch (spi->mode & (SPI_CPOL | SPI_CPHA)) { ++ case SPI_MODE_0: ++ reg |= SPICFG_TXCLKEDGE_FALLING; ++ break; ++ case SPI_MODE_1: ++ reg |= SPICFG_RXCLKEDGE_FALLING; ++ break; ++ case SPI_MODE_2: ++ reg |= SPICFG_SPICLKPOL | SPICFG_RXCLKEDGE_FALLING; ++ break; ++ case SPI_MODE_3: ++ reg |= SPICFG_SPICLKPOL | SPICFG_TXCLKEDGE_FALLING; ++ break; ++ } ++ rs->mode = spi->mode; ++ ++#if 0 ++ /* set spiclk and spiena to tri-state */ ++ reg |= SPICFG_HIZSPI; ++#endif ++ ++ /* clock divide */ ++ reg |= rt2880_spi_baudrate_get(spi, spi->max_speed_hz); ++ ++ rt2880_spi_write(rs, RAMIPS_SPI_CFG, reg); ++ ++ return 0; ++} ++ ++static int rt2880_spi_probe(struct platform_device *pdev) ++{ ++ struct spi_master *master; ++ struct rt2880_spi *rs; ++ void __iomem *base; ++ struct resource *r; ++ struct clk *clk; ++ int ret; ++ ++ r = platform_get_resource(pdev, IORESOURCE_MEM, 0); ++ base = devm_ioremap_resource(&pdev->dev, r); ++ if (IS_ERR(base)) ++ return PTR_ERR(base); ++ ++ clk = devm_clk_get(&pdev->dev, NULL); ++ if (IS_ERR(clk)) { ++ dev_err(&pdev->dev, "unable to get SYS clock\n"); ++ return PTR_ERR(clk); ++ } ++ ++ ret = clk_prepare_enable(clk); ++ if (ret) ++ goto err_clk; ++ ++ master = spi_alloc_master(&pdev->dev, sizeof(*rs)); ++ if (master == NULL) { ++ dev_dbg(&pdev->dev, "master allocation failed\n"); ++ ret = -ENOMEM; ++ goto err_clk; ++ } ++ ++ master->dev.of_node = pdev->dev.of_node; ++ master->mode_bits = RT2880_SPI_MODE_BITS; ++ master->bits_per_word_mask = SPI_BPW_MASK(8); ++ master->min_speed_hz = clk_get_rate(clk) / 128; ++ master->max_speed_hz = clk_get_rate(clk) / 2; ++ master->flags = SPI_MASTER_HALF_DUPLEX; ++ master->setup = rt2880_spi_setup; ++ master->prepare_message = rt2880_spi_prepare_message; ++ master->set_cs = rt2880_spi_set_cs; ++ master->transfer_one = rt2880_spi_transfer_one, ++ ++ dev_set_drvdata(&pdev->dev, master); ++ ++ rs = spi_master_get_devdata(master); ++ rs->master = master; ++ rs->base = base; ++ rs->clk = clk; ++ ++ if (atomic_inc_return(&hw_reset_count) == 1) ++ device_reset(&pdev->dev); ++ ++ ret = devm_spi_register_master(&pdev->dev, master); ++ if (ret < 0) { ++ dev_err(&pdev->dev, "devm_spi_register_master error.\n"); ++ goto err_master; ++ } ++ ++ return ret; ++ ++err_master: ++ spi_master_put(master); ++ kfree(master); ++err_clk: ++ clk_disable_unprepare(clk); ++ ++ return ret; ++} ++ ++static int rt2880_spi_remove(struct platform_device *pdev) ++{ ++ struct spi_master *master; ++ struct rt2880_spi *rs; ++ ++ master = dev_get_drvdata(&pdev->dev); ++ rs = spi_master_get_devdata(master); ++ ++ clk_disable_unprepare(rs->clk); ++ atomic_dec(&hw_reset_count); ++ ++ return 0; ++} ++ ++MODULE_ALIAS("platform:" DRIVER_NAME); ++ ++static const struct of_device_id rt2880_spi_match[] = { ++ { .compatible = "ralink,rt2880-spi" }, ++ {}, ++}; ++MODULE_DEVICE_TABLE(of, rt2880_spi_match); ++ ++static struct platform_driver rt2880_spi_driver = { ++ .driver = { ++ .name = DRIVER_NAME, ++ .owner = THIS_MODULE, ++ .of_match_table = rt2880_spi_match, ++ }, ++ .probe = rt2880_spi_probe, ++ .remove = rt2880_spi_remove, ++}; ++ ++module_platform_driver(rt2880_spi_driver); ++ ++MODULE_DESCRIPTION("Ralink SPI driver"); ++MODULE_AUTHOR("Sergiy <piratfm@gmail.com>"); ++MODULE_AUTHOR("Gabor Juhos <juhosg@openwrt.org>"); ++MODULE_LICENSE("GPL"); diff --git a/target/linux/ramips/patches-5.15/825-i2c-MIPS-adds-ralink-I2C-driver.patch b/target/linux/ramips/patches-5.15/825-i2c-MIPS-adds-ralink-I2C-driver.patch new file mode 100644 index 0000000000..5a4491c95a --- /dev/null +++ b/target/linux/ramips/patches-5.15/825-i2c-MIPS-adds-ralink-I2C-driver.patch @@ -0,0 +1,507 @@ +From 723b8beaabf3c3c4b1ce69480141f1e926f3f3b2 Mon Sep 17 00:00:00 2001 +From: John Crispin <blogic@openwrt.org> +Date: Sun, 27 Jul 2014 09:52:56 +0100 +Subject: [PATCH 44/53] i2c: MIPS: adds ralink I2C driver + +Signed-off-by: John Crispin <blogic@openwrt.org> +--- + .../devicetree/bindings/i2c/i2c-ralink.txt | 27 ++ + drivers/i2c/busses/Kconfig | 4 + + drivers/i2c/busses/Makefile | 1 + + drivers/i2c/busses/i2c-ralink.c | 327 ++++++++++++++++++++ + 4 files changed, 359 insertions(+) + create mode 100644 Documentation/devicetree/bindings/i2c/i2c-ralink.txt + create mode 100644 drivers/i2c/busses/i2c-ralink.c + +--- /dev/null ++++ b/Documentation/devicetree/bindings/i2c/i2c-ralink.txt +@@ -0,0 +1,27 @@ ++I2C for Ralink platforms ++ ++Required properties : ++- compatible : Must be "link,rt3052-i2c" ++- reg: physical base address of the controller and length of memory mapped ++ region. ++- #address-cells = <1>; ++- #size-cells = <0>; ++ ++Optional properties: ++- Child nodes conforming to i2c bus binding ++ ++Example : ++ ++palmbus@10000000 { ++ i2c@900 { ++ compatible = "link,rt3052-i2c"; ++ reg = <0x900 0x100>; ++ #address-cells = <1>; ++ #size-cells = <0>; ++ ++ hwmon@4b { ++ compatible = "national,lm92"; ++ reg = <0x4b>; ++ }; ++ }; ++}; +--- a/drivers/i2c/busses/Kconfig ++++ b/drivers/i2c/busses/Kconfig +@@ -949,6 +949,11 @@ config I2C_RK3X + This driver can also be built as a module. If so, the module will + be called i2c-rk3x. + ++config I2C_RALINK ++ tristate "Ralink I2C Controller" ++ depends on RALINK && !SOC_MT7621 ++ select OF_I2C ++ + config HAVE_S3C2410_I2C + bool + help +--- a/drivers/i2c/busses/Makefile ++++ b/drivers/i2c/busses/Makefile +@@ -89,6 +89,7 @@ obj-$(CONFIG_I2C_PCA_PLATFORM) += i2c-pc + obj-$(CONFIG_I2C_PNX) += i2c-pnx.o + obj-$(CONFIG_I2C_PXA) += i2c-pxa.o + obj-$(CONFIG_I2C_PXA_PCI) += i2c-pxa-pci.o ++obj-$(CONFIG_I2C_RALINK) += i2c-ralink.o + obj-$(CONFIG_I2C_QCOM_CCI) += i2c-qcom-cci.o + obj-$(CONFIG_I2C_QCOM_GENI) += i2c-qcom-geni.o + obj-$(CONFIG_I2C_QUP) += i2c-qup.o +--- /dev/null ++++ b/drivers/i2c/busses/i2c-ralink.c +@@ -0,0 +1,435 @@ ++/* ++ * drivers/i2c/busses/i2c-ralink.c ++ * ++ * Copyright (C) 2013 Steven Liu <steven_liu@mediatek.com> ++ * Copyright (C) 2016 Michael Lee <igvtee@gmail.com> ++ * ++ * Improve driver for i2cdetect from i2c-tools to detect i2c devices on the bus. ++ * (C) 2014 Sittisak <sittisaks@hotmail.com> ++ * ++ * This software is licensed under the terms of the GNU General Public ++ * License version 2, as published by the Free Software Foundation, and ++ * may be copied, distributed, and modified under those terms. ++ * ++ * This program is distributed in the hope that it will be useful, ++ * but WITHOUT ANY WARRANTY; without even the implied warranty of ++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ++ * GNU General Public License for more details. ++ * ++ */ ++ ++#include <linux/interrupt.h> ++#include <linux/kernel.h> ++#include <linux/module.h> ++#include <linux/reset.h> ++#include <linux/delay.h> ++#include <linux/slab.h> ++#include <linux/init.h> ++#include <linux/errno.h> ++#include <linux/platform_device.h> ++#include <linux/of_platform.h> ++#include <linux/i2c.h> ++#include <linux/io.h> ++#include <linux/err.h> ++#include <linux/clk.h> ++ ++#define REG_CONFIG_REG 0x00 ++#define REG_CLKDIV_REG 0x04 ++#define REG_DEVADDR_REG 0x08 ++#define REG_ADDR_REG 0x0C ++#define REG_DATAOUT_REG 0x10 ++#define REG_DATAIN_REG 0x14 ++#define REG_STATUS_REG 0x18 ++#define REG_STARTXFR_REG 0x1C ++#define REG_BYTECNT_REG 0x20 ++ ++/* REG_CONFIG_REG */ ++#define I2C_ADDRLEN_OFFSET 5 ++#define I2C_DEVADLEN_OFFSET 2 ++#define I2C_ADDRLEN_MASK 0x3 ++#define I2C_ADDR_DIS BIT(1) ++#define I2C_DEVADDR_DIS BIT(0) ++#define I2C_ADDRLEN_8 (7 << I2C_ADDRLEN_OFFSET) ++#define I2C_DEVADLEN_7 (6 << I2C_DEVADLEN_OFFSET) ++#define I2C_CONF_DEFAULT (I2C_ADDRLEN_8 | I2C_DEVADLEN_7) ++ ++/* REG_CLKDIV_REG */ ++#define I2C_CLKDIV_MASK 0xffff ++ ++/* REG_DEVADDR_REG */ ++#define I2C_DEVADDR_MASK 0x7f ++ ++/* REG_ADDR_REG */ ++#define I2C_ADDR_MASK 0xff ++ ++/* REG_STATUS_REG */ ++#define I2C_STARTERR BIT(4) ++#define I2C_ACKERR BIT(3) ++#define I2C_DATARDY BIT(2) ++#define I2C_SDOEMPTY BIT(1) ++#define I2C_BUSY BIT(0) ++ ++/* REG_STARTXFR_REG */ ++#define NOSTOP_CMD BIT(2) ++#define NODATA_CMD BIT(1) ++#define READ_CMD BIT(0) ++ ++/* REG_BYTECNT_REG */ ++#define BYTECNT_MAX 64 ++#define SET_BYTECNT(x) (x - 1) ++ ++/* timeout waiting for I2C devices to respond (clock streching) */ ++#define TIMEOUT_MS 1000 ++#define DELAY_INTERVAL_US 100 ++ ++struct rt_i2c { ++ void __iomem *base; ++ struct clk *clk; ++ struct device *dev; ++ struct i2c_adapter adap; ++ u32 cur_clk; ++ u32 clk_div; ++ u32 flags; ++}; ++ ++static void rt_i2c_w32(struct rt_i2c *i2c, u32 val, unsigned reg) ++{ ++ iowrite32(val, i2c->base + reg); ++} ++ ++static u32 rt_i2c_r32(struct rt_i2c *i2c, unsigned reg) ++{ ++ return ioread32(i2c->base + reg); ++} ++ ++static int poll_down_timeout(void __iomem *addr, u32 mask) ++{ ++ unsigned long timeout = jiffies + msecs_to_jiffies(TIMEOUT_MS); ++ ++ do { ++ if (!(readl_relaxed(addr) & mask)) ++ return 0; ++ ++ usleep_range(DELAY_INTERVAL_US, DELAY_INTERVAL_US + 50); ++ } while (time_before(jiffies, timeout)); ++ ++ return (readl_relaxed(addr) & mask) ? -EAGAIN : 0; ++} ++ ++static int rt_i2c_wait_idle(struct rt_i2c *i2c) ++{ ++ int ret; ++ ++ ret = poll_down_timeout(i2c->base + REG_STATUS_REG, I2C_BUSY); ++ if (ret < 0) ++ dev_dbg(i2c->dev, "idle err(%d)\n", ret); ++ ++ return ret; ++} ++ ++static int poll_up_timeout(void __iomem *addr, u32 mask) ++{ ++ unsigned long timeout = jiffies + msecs_to_jiffies(TIMEOUT_MS); ++ u32 status; ++ ++ do { ++ status = readl_relaxed(addr); ++ ++ /* check error status */ ++ if (status & I2C_STARTERR) ++ return -EAGAIN; ++ else if (status & I2C_ACKERR) ++ return -ENXIO; ++ else if (status & mask) ++ return 0; ++ ++ usleep_range(DELAY_INTERVAL_US, DELAY_INTERVAL_US + 50); ++ } while (time_before(jiffies, timeout)); ++ ++ return -ETIMEDOUT; ++} ++ ++static int rt_i2c_wait_rx_done(struct rt_i2c *i2c) ++{ ++ int ret; ++ ++ ret = poll_up_timeout(i2c->base + REG_STATUS_REG, I2C_DATARDY); ++ if (ret < 0) ++ dev_dbg(i2c->dev, "rx err(%d)\n", ret); ++ ++ return ret; ++} ++ ++static int rt_i2c_wait_tx_done(struct rt_i2c *i2c) ++{ ++ int ret; ++ ++ ret = poll_up_timeout(i2c->base + REG_STATUS_REG, I2C_SDOEMPTY); ++ if (ret < 0) ++ dev_dbg(i2c->dev, "tx err(%d)\n", ret); ++ ++ return ret; ++} ++ ++static void rt_i2c_reset(struct rt_i2c *i2c) ++{ ++ device_reset(i2c->adap.dev.parent); ++ barrier(); ++ rt_i2c_w32(i2c, i2c->clk_div, REG_CLKDIV_REG); ++} ++ ++static void rt_i2c_dump_reg(struct rt_i2c *i2c) ++{ ++ dev_dbg(i2c->dev, "conf %08x, clkdiv %08x, devaddr %08x, " \ ++ "addr %08x, dataout %08x, datain %08x, " \ ++ "status %08x, startxfr %08x, bytecnt %08x\n", ++ rt_i2c_r32(i2c, REG_CONFIG_REG), ++ rt_i2c_r32(i2c, REG_CLKDIV_REG), ++ rt_i2c_r32(i2c, REG_DEVADDR_REG), ++ rt_i2c_r32(i2c, REG_ADDR_REG), ++ rt_i2c_r32(i2c, REG_DATAOUT_REG), ++ rt_i2c_r32(i2c, REG_DATAIN_REG), ++ rt_i2c_r32(i2c, REG_STATUS_REG), ++ rt_i2c_r32(i2c, REG_STARTXFR_REG), ++ rt_i2c_r32(i2c, REG_BYTECNT_REG)); ++} ++ ++static int rt_i2c_master_xfer(struct i2c_adapter *adap, struct i2c_msg *msgs, ++ int num) ++{ ++ struct rt_i2c *i2c; ++ struct i2c_msg *pmsg; ++ unsigned char addr; ++ int i, j, ret; ++ u32 cmd; ++ ++ i2c = i2c_get_adapdata(adap); ++ ++ for (i = 0; i < num; i++) { ++ pmsg = &msgs[i]; ++ if (i == (num - 1)) ++ cmd = 0; ++ else ++ cmd = NOSTOP_CMD; ++ ++ dev_dbg(i2c->dev, "addr: 0x%x, len: %d, flags: 0x%x, stop: %d\n", ++ pmsg->addr, pmsg->len, pmsg->flags, ++ (cmd == 0)? 1 : 0); ++ ++ /* wait hardware idle */ ++ if ((ret = rt_i2c_wait_idle(i2c))) ++ goto err_timeout; ++ ++ if (pmsg->flags & I2C_M_TEN) { ++ rt_i2c_w32(i2c, I2C_CONF_DEFAULT, REG_CONFIG_REG); ++ /* 10 bits address */ ++ addr = 0x78 | ((pmsg->addr >> 8) & 0x03); ++ rt_i2c_w32(i2c, addr & I2C_DEVADDR_MASK, ++ REG_DEVADDR_REG); ++ rt_i2c_w32(i2c, pmsg->addr & I2C_ADDR_MASK, ++ REG_ADDR_REG); ++ } else { ++ rt_i2c_w32(i2c, I2C_CONF_DEFAULT | I2C_ADDR_DIS, ++ REG_CONFIG_REG); ++ /* 7 bits address */ ++ rt_i2c_w32(i2c, pmsg->addr & I2C_DEVADDR_MASK, ++ REG_DEVADDR_REG); ++ } ++ ++ /* buffer length */ ++ if (pmsg->len == 0) ++ cmd |= NODATA_CMD; ++ else ++ rt_i2c_w32(i2c, SET_BYTECNT(pmsg->len), ++ REG_BYTECNT_REG); ++ ++ j = 0; ++ if (pmsg->flags & I2C_M_RD) { ++ cmd |= READ_CMD; ++ /* start transfer */ ++ barrier(); ++ rt_i2c_w32(i2c, cmd, REG_STARTXFR_REG); ++ do { ++ /* wait */ ++ if ((ret = rt_i2c_wait_rx_done(i2c))) ++ goto err_timeout; ++ /* read data */ ++ if (pmsg->len) ++ pmsg->buf[j] = rt_i2c_r32(i2c, ++ REG_DATAIN_REG); ++ j++; ++ } while (j < pmsg->len); ++ } else { ++ do { ++ /* write data */ ++ if (pmsg->len) ++ rt_i2c_w32(i2c, pmsg->buf[j], ++ REG_DATAOUT_REG); ++ /* start transfer */ ++ if (j == 0) { ++ barrier(); ++ rt_i2c_w32(i2c, cmd, REG_STARTXFR_REG); ++ } ++ /* wait */ ++ if ((ret = rt_i2c_wait_tx_done(i2c))) ++ goto err_timeout; ++ j++; ++ } while (j < pmsg->len); ++ } ++ } ++ /* the return value is number of executed messages */ ++ ret = i; ++ ++ return ret; ++ ++err_timeout: ++ rt_i2c_dump_reg(i2c); ++ rt_i2c_reset(i2c); ++ return ret; ++} ++ ++static u32 rt_i2c_func(struct i2c_adapter *a) ++{ ++ return I2C_FUNC_I2C | I2C_FUNC_SMBUS_EMUL; ++} ++ ++static const struct i2c_algorithm rt_i2c_algo = { ++ .master_xfer = rt_i2c_master_xfer, ++ .functionality = rt_i2c_func, ++}; ++ ++static const struct of_device_id i2c_rt_dt_ids[] = { ++ { .compatible = "ralink,rt2880-i2c" }, ++ { /* sentinel */ } ++}; ++ ++MODULE_DEVICE_TABLE(of, i2c_rt_dt_ids); ++ ++static struct i2c_adapter_quirks rt_i2c_quirks = { ++ .max_write_len = BYTECNT_MAX, ++ .max_read_len = BYTECNT_MAX, ++}; ++ ++static int rt_i2c_init(struct rt_i2c *i2c) ++{ ++ u32 reg; ++ ++ /* i2c_sclk = periph_clk / ((2 * clk_div) + 5) */ ++ i2c->clk_div = (clk_get_rate(i2c->clk) - (5 * i2c->cur_clk)) / ++ (2 * i2c->cur_clk); ++ if (i2c->clk_div < 8) ++ i2c->clk_div = 8; ++ if (i2c->clk_div > I2C_CLKDIV_MASK) ++ i2c->clk_div = I2C_CLKDIV_MASK; ++ ++ /* check support combinde/repeated start message */ ++ rt_i2c_w32(i2c, NOSTOP_CMD, REG_STARTXFR_REG); ++ reg = rt_i2c_r32(i2c, REG_STARTXFR_REG) & NOSTOP_CMD; ++ ++ rt_i2c_reset(i2c); ++ ++ return reg; ++} ++ ++static int rt_i2c_probe(struct platform_device *pdev) ++{ ++ struct resource *res; ++ struct rt_i2c *i2c; ++ struct i2c_adapter *adap; ++ const struct of_device_id *match; ++ int ret, restart; ++ ++ match = of_match_device(i2c_rt_dt_ids, &pdev->dev); ++ ++ res = platform_get_resource(pdev, IORESOURCE_MEM, 0); ++ if (!res) { ++ dev_err(&pdev->dev, "no memory resource found\n"); ++ return -ENODEV; ++ } ++ ++ i2c = devm_kzalloc(&pdev->dev, sizeof(struct rt_i2c), GFP_KERNEL); ++ if (!i2c) { ++ dev_err(&pdev->dev, "failed to allocate i2c_adapter\n"); ++ return -ENOMEM; ++ } ++ ++ i2c->base = devm_ioremap_resource(&pdev->dev, res); ++ if (IS_ERR(i2c->base)) ++ return PTR_ERR(i2c->base); ++ ++ i2c->clk = devm_clk_get(&pdev->dev, NULL); ++ if (IS_ERR(i2c->clk)) { ++ dev_err(&pdev->dev, "no clock defined\n"); ++ return -ENODEV; ++ } ++ clk_prepare_enable(i2c->clk); ++ i2c->dev = &pdev->dev; ++ ++ if (of_property_read_u32(pdev->dev.of_node, ++ "clock-frequency", &i2c->cur_clk)) ++ i2c->cur_clk = 100000; ++ ++ adap = &i2c->adap; ++ adap->owner = THIS_MODULE; ++ adap->class = I2C_CLASS_HWMON | I2C_CLASS_SPD; ++ adap->algo = &rt_i2c_algo; ++ adap->retries = 3; ++ adap->dev.parent = &pdev->dev; ++ i2c_set_adapdata(adap, i2c); ++ adap->dev.of_node = pdev->dev.of_node; ++ strlcpy(adap->name, dev_name(&pdev->dev), sizeof(adap->name)); ++ adap->quirks = &rt_i2c_quirks; ++ ++ platform_set_drvdata(pdev, i2c); ++ ++ restart = rt_i2c_init(i2c); ++ ++ ret = i2c_add_adapter(adap); ++ if (ret < 0) { ++ dev_err(&pdev->dev, "failed to add adapter\n"); ++ clk_disable_unprepare(i2c->clk); ++ return ret; ++ } ++ ++ dev_info(&pdev->dev, "clock %uKHz, re-start %ssupport\n", ++ i2c->cur_clk/1000, restart ? "" : "not "); ++ ++ return ret; ++} ++ ++static int rt_i2c_remove(struct platform_device *pdev) ++{ ++ struct rt_i2c *i2c = platform_get_drvdata(pdev); ++ ++ i2c_del_adapter(&i2c->adap); ++ clk_disable_unprepare(i2c->clk); ++ ++ return 0; ++} ++ ++static struct platform_driver rt_i2c_driver = { ++ .probe = rt_i2c_probe, ++ .remove = rt_i2c_remove, ++ .driver = { ++ .owner = THIS_MODULE, ++ .name = "i2c-ralink", ++ .of_match_table = i2c_rt_dt_ids, ++ }, ++}; ++ ++static int __init i2c_rt_init (void) ++{ ++ return platform_driver_register(&rt_i2c_driver); ++} ++subsys_initcall(i2c_rt_init); ++ ++static void __exit i2c_rt_exit (void) ++{ ++ platform_driver_unregister(&rt_i2c_driver); ++} ++module_exit(i2c_rt_exit); ++ ++MODULE_AUTHOR("Steven Liu <steven_liu@mediatek.com>"); ++MODULE_DESCRIPTION("Ralink I2c host driver"); ++MODULE_LICENSE("GPL"); ++MODULE_ALIAS("platform:Ralink-I2C"); diff --git a/target/linux/ramips/patches-5.15/830-mmc-MIPS-ralink-add-sdhci-for-mt7620a-SoC.patch b/target/linux/ramips/patches-5.15/830-mmc-MIPS-ralink-add-sdhci-for-mt7620a-SoC.patch new file mode 100644 index 0000000000..1992850d81 --- /dev/null +++ b/target/linux/ramips/patches-5.15/830-mmc-MIPS-ralink-add-sdhci-for-mt7620a-SoC.patch @@ -0,0 +1,43 @@ +From 23147af14531cbdada194b94120ef8774f46292d Mon Sep 17 00:00:00 2001 +From: John Crispin <blogic@openwrt.org> +Date: Thu, 13 Nov 2014 19:08:40 +0100 +Subject: [PATCH 46/53] mmc: MIPS: ralink: add sdhci for mt7620a SoC + +Signed-off-by: John Crispin <blogic@openwrt.org> +--- + drivers/mmc/host/Kconfig | 2 + + drivers/mmc/host/Makefile | 1 + + drivers/mmc/host/mtk-mmc/Kconfig | 16 + + drivers/mmc/host/mtk-mmc/Makefile | 42 + + drivers/mmc/host/mtk-mmc/board.h | 137 ++ + drivers/mmc/host/mtk-mmc/dbg.c | 347 ++++ + drivers/mmc/host/mtk-mmc/dbg.h | 156 ++ + drivers/mmc/host/mtk-mmc/mt6575_sd.h | 1001 +++++++++++ + drivers/mmc/host/mtk-mmc/sd.c | 3060 ++++++++++++++++++++++++++++++++++ + 9 files changed, 4762 insertions(+) + create mode 100644 drivers/mmc/host/mtk-mmc/Kconfig + create mode 100644 drivers/mmc/host/mtk-mmc/Makefile + create mode 100644 drivers/mmc/host/mtk-mmc/board.h + create mode 100644 drivers/mmc/host/mtk-mmc/dbg.c + create mode 100644 drivers/mmc/host/mtk-mmc/dbg.h + create mode 100644 drivers/mmc/host/mtk-mmc/mt6575_sd.h + create mode 100644 drivers/mmc/host/mtk-mmc/sd.c + +--- a/drivers/mmc/host/Kconfig ++++ b/drivers/mmc/host/Kconfig +@@ -1091,3 +1091,5 @@ config MMC_OWL + + config MMC_SDHCI_EXTERNAL_DMA + bool ++ ++source "drivers/mmc/host/mtk-mmc/Kconfig" +--- a/drivers/mmc/host/Makefile ++++ b/drivers/mmc/host/Makefile +@@ -3,6 +3,7 @@ + # Makefile for MMC/SD host controller drivers + # + ++obj-$(CONFIG_MTK_MMC) += mtk-mmc/ + obj-$(CONFIG_MMC_ARMMMCI) += armmmci.o + armmmci-y := mmci.o + armmmci-$(CONFIG_MMC_QCOM_DML) += mmci_qcom_dml.o diff --git a/target/linux/ramips/patches-5.15/835-asoc-add-mt7620-support.patch b/target/linux/ramips/patches-5.15/835-asoc-add-mt7620-support.patch new file mode 100644 index 0000000000..bacce79e30 --- /dev/null +++ b/target/linux/ramips/patches-5.15/835-asoc-add-mt7620-support.patch @@ -0,0 +1,1029 @@ +From 7f29222b1731e8182ba94a331531dec18865a1e4 Mon Sep 17 00:00:00 2001 +From: John Crispin <blogic@openwrt.org> +Date: Sun, 27 Jul 2014 09:31:47 +0100 +Subject: [PATCH 48/53] asoc: add mt7620 support + +Signed-off-by: John Crispin <blogic@openwrt.org> +--- + arch/mips/ralink/of.c | 2 + + sound/soc/Kconfig | 1 + + sound/soc/Makefile | 1 + + sound/soc/ralink/Kconfig | 15 ++ + sound/soc/ralink/Makefile | 11 + + sound/soc/ralink/mt7620-i2s.c | 436 ++++++++++++++++++++++++++++++++++++++ + sound/soc/ralink/mt7620-wm8960.c | 233 ++++++++++++++++++++ + 7 files changed, 699 insertions(+) + create mode 100644 sound/soc/ralink/Kconfig + create mode 100644 sound/soc/ralink/Makefile + create mode 100644 sound/soc/ralink/mt7620-i2s.c + create mode 100644 sound/soc/ralink/mt7620-wm8960.c + +--- a/sound/soc/Kconfig ++++ b/sound/soc/Kconfig +@@ -78,6 +78,7 @@ source "sound/soc/mxs/Kconfig" + source "sound/soc/pxa/Kconfig" + source "sound/soc/qcom/Kconfig" + source "sound/soc/rockchip/Kconfig" ++source "sound/soc/ralink/Kconfig" + source "sound/soc/samsung/Kconfig" + source "sound/soc/sh/Kconfig" + source "sound/soc/sof/Kconfig" +--- a/sound/soc/Makefile ++++ b/sound/soc/Makefile +@@ -48,6 +48,7 @@ obj-$(CONFIG_SND_SOC) += kirkwood/ + obj-$(CONFIG_SND_SOC) += pxa/ + obj-$(CONFIG_SND_SOC) += qcom/ + obj-$(CONFIG_SND_SOC) += rockchip/ ++obj-$(CONFIG_SND_SOC) += ralink/ + obj-$(CONFIG_SND_SOC) += samsung/ + obj-$(CONFIG_SND_SOC) += sh/ + obj-$(CONFIG_SND_SOC) += sof/ +--- /dev/null ++++ b/sound/soc/ralink/Kconfig +@@ -0,0 +1,8 @@ ++config SND_RALINK_SOC_I2S ++ depends on RALINK && SND_SOC && !SOC_RT288X ++ select SND_SOC_GENERIC_DMAENGINE_PCM ++ select REGMAP_MMIO ++ tristate "SoC Audio (I2S protocol) for Ralink SoC" ++ help ++ Say Y if you want to use I2S protocol and I2S codec on Ralink/MediaTek ++ based boards. +--- /dev/null ++++ b/sound/soc/ralink/Makefile +@@ -0,0 +1,6 @@ ++# ++# Ralink/MediaTek Platform Support ++# ++snd-soc-ralink-i2s-objs := ralink-i2s.o ++ ++obj-$(CONFIG_SND_RALINK_SOC_I2S) += snd-soc-ralink-i2s.o +--- /dev/null ++++ b/sound/soc/ralink/ralink-i2s.c +@@ -0,0 +1,966 @@ ++/* ++ * Copyright (C) 2010, Lars-Peter Clausen <lars@metafoo.de> ++ * Copyright (C) 2016 Michael Lee <igvtee@gmail.com> ++ * ++ * This program is free software; you can redistribute it and/or modify it ++ * under the terms of the GNU General Public License as published by the ++ * Free Software Foundation; either version 2 of the License, or (at your ++ * option) any later version. ++ * ++ * You should have received a copy of the GNU General Public License along ++ * with this program; if not, write to the Free Software Foundation, Inc., ++ * 675 Mass Ave, Cambridge, MA 02139, USA. ++ * ++ */ ++ ++#include <linux/module.h> ++#include <linux/platform_device.h> ++#include <linux/clk.h> ++#include <linux/regmap.h> ++#include <linux/reset.h> ++#include <linux/debugfs.h> ++#include <linux/of_device.h> ++#include <sound/pcm_params.h> ++#include <sound/dmaengine_pcm.h> ++ ++#include <asm/mach-ralink/ralink_regs.h> ++ ++#define DRV_NAME "ralink-i2s" ++ ++#define I2S_REG_CFG0 0x00 ++#define I2S_REG_INT_STATUS 0x04 ++#define I2S_REG_INT_EN 0x08 ++#define I2S_REG_FF_STATUS 0x0c ++#define I2S_REG_WREG 0x10 ++#define I2S_REG_RREG 0x14 ++#define I2S_REG_CFG1 0x18 ++#define I2S_REG_DIVCMP 0x20 ++#define I2S_REG_DIVINT 0x24 ++ ++/* I2S_REG_CFG0 */ ++#define I2S_REG_CFG0_EN BIT(31) ++#define I2S_REG_CFG0_DMA_EN BIT(30) ++#define I2S_REG_CFG0_BYTE_SWAP BIT(28) ++#define I2S_REG_CFG0_TX_EN BIT(24) ++#define I2S_REG_CFG0_RX_EN BIT(20) ++#define I2S_REG_CFG0_SLAVE BIT(16) ++#define I2S_REG_CFG0_RX_THRES 12 ++#define I2S_REG_CFG0_TX_THRES 4 ++#define I2S_REG_CFG0_THRES_MASK (0xf << I2S_REG_CFG0_RX_THRES) | \ ++ (4 << I2S_REG_CFG0_TX_THRES) ++#define I2S_REG_CFG0_DFT_THRES (4 << I2S_REG_CFG0_RX_THRES) | \ ++ (4 << I2S_REG_CFG0_TX_THRES) ++/* RT305x */ ++#define I2S_REG_CFG0_CLK_DIS BIT(8) ++#define I2S_REG_CFG0_TXCH_SWAP BIT(3) ++#define I2S_REG_CFG0_TXCH1_OFF BIT(2) ++#define I2S_REG_CFG0_TXCH0_OFF BIT(1) ++#define I2S_REG_CFG0_SLAVE_EN BIT(0) ++/* RT3883 */ ++#define I2S_REG_CFG0_RXCH_SWAP BIT(11) ++#define I2S_REG_CFG0_RXCH1_OFF BIT(10) ++#define I2S_REG_CFG0_RXCH0_OFF BIT(9) ++#define I2S_REG_CFG0_WS_INV BIT(0) ++/* MT7628 */ ++#define I2S_REG_CFG0_FMT_LE BIT(29) ++#define I2S_REG_CFG0_SYS_BE BIT(28) ++#define I2S_REG_CFG0_NORM_24 BIT(18) ++#define I2S_REG_CFG0_DATA_24 BIT(17) ++ ++/* I2S_REG_INT_STATUS */ ++#define I2S_REG_INT_RX_FAULT BIT(7) ++#define I2S_REG_INT_RX_OVRUN BIT(6) ++#define I2S_REG_INT_RX_UNRUN BIT(5) ++#define I2S_REG_INT_RX_THRES BIT(4) ++#define I2S_REG_INT_TX_FAULT BIT(3) ++#define I2S_REG_INT_TX_OVRUN BIT(2) ++#define I2S_REG_INT_TX_UNRUN BIT(1) ++#define I2S_REG_INT_TX_THRES BIT(0) ++#define I2S_REG_INT_TX_MASK 0xf ++#define I2S_REG_INT_RX_MASK 0xf0 ++ ++/* I2S_REG_INT_STATUS */ ++#define I2S_RX_AVCNT(x) ((x >> 4) & 0xf) ++#define I2S_TX_AVCNT(x) (x & 0xf) ++/* MT7628 */ ++#define MT7628_I2S_RX_AVCNT(x) ((x >> 8) & 0x1f) ++#define MT7628_I2S_TX_AVCNT(x) (x & 0x1f) ++ ++/* I2S_REG_CFG1 */ ++#define I2S_REG_CFG1_LBK BIT(31) ++#define I2S_REG_CFG1_EXTLBK BIT(30) ++/* RT3883 */ ++#define I2S_REG_CFG1_LEFT_J BIT(0) ++#define I2S_REG_CFG1_RIGHT_J BIT(1) ++#define I2S_REG_CFG1_FMT_MASK 0x3 ++ ++/* I2S_REG_DIVCMP */ ++#define I2S_REG_DIVCMP_CLKEN BIT(31) ++#define I2S_REG_DIVCMP_DIVCOMP_MASK 0x1ff ++ ++/* I2S_REG_DIVINT */ ++#define I2S_REG_DIVINT_MASK 0x3ff ++ ++/* BCLK dividers */ ++#define RALINK_I2S_DIVCMP 0 ++#define RALINK_I2S_DIVINT 1 ++ ++/* FIFO */ ++#define RALINK_I2S_FIFO_SIZE 32 ++ ++/* feature flags */ ++#define RALINK_FLAGS_TXONLY BIT(0) ++#define RALINK_FLAGS_LEFT_J BIT(1) ++#define RALINK_FLAGS_RIGHT_J BIT(2) ++#define RALINK_FLAGS_ENDIAN BIT(3) ++#define RALINK_FLAGS_24BIT BIT(4) ++ ++#define RALINK_I2S_INT_EN 0 ++ ++struct ralink_i2s_stats { ++ u32 dmafault; ++ u32 overrun; ++ u32 underrun; ++ u32 belowthres; ++}; ++ ++struct ralink_i2s { ++ struct device *dev; ++ void __iomem *regs; ++ struct clk *clk; ++ struct regmap *regmap; ++ u32 flags; ++ unsigned int fmt; ++ u16 txdma_req; ++ u16 rxdma_req; ++ ++ struct snd_dmaengine_dai_dma_data playback_dma_data; ++ struct snd_dmaengine_dai_dma_data capture_dma_data; ++ ++ struct dentry *dbg_dir; ++ struct dentry *dbg_stats; ++ struct ralink_i2s_stats txstats; ++ struct ralink_i2s_stats rxstats; ++}; ++ ++static void ralink_i2s_dump_regs(struct ralink_i2s *i2s) ++{ ++ u32 buf[10]; ++ int ret; ++ ++ ret = regmap_bulk_read(i2s->regmap, I2S_REG_CFG0, ++ buf, ARRAY_SIZE(buf)); ++ ++ dev_dbg(i2s->dev, "CFG0: %08x, INTSTAT: %08x, INTEN: %08x, " \ ++ "FFSTAT: %08x, WREG: %08x, RREG: %08x, " \ ++ "CFG1: %08x, DIVCMP: %08x, DIVINT: %08x\n", ++ buf[0], buf[1], buf[2], buf[3], buf[4], ++ buf[5], buf[6], buf[8], buf[9]); ++} ++ ++static int ralink_i2s_set_sysclk(struct snd_soc_dai *dai, ++ int clk_id, unsigned int freq, int dir) ++{ ++ return 0; ++} ++ ++static int ralink_i2s_set_sys_bclk(struct snd_soc_dai *dai, int width, int rate) ++{ ++ struct ralink_i2s *i2s = snd_soc_dai_get_drvdata(dai); ++ unsigned long clk = clk_get_rate(i2s->clk); ++ int div; ++ uint32_t data; ++ ++ /* disable clock at slave mode */ ++ if ((i2s->fmt & SND_SOC_DAIFMT_MASTER_MASK) == ++ SND_SOC_DAIFMT_CBM_CFM) { ++ regmap_update_bits(i2s->regmap, I2S_REG_CFG0, ++ I2S_REG_CFG0_CLK_DIS, ++ I2S_REG_CFG0_CLK_DIS); ++ return 0; ++ } ++ ++ /* FREQOUT = FREQIN / (I2S_CLK_DIV + 1) */ ++ div = (clk / rate ) - 1; ++ ++ data = rt_sysc_r32(0x30); ++ data &= (0xff << 8); ++ data |= (0x1 << 15) | (div << 8); ++ rt_sysc_w32(data, 0x30); ++ ++ /* enable clock */ ++ regmap_update_bits(i2s->regmap, I2S_REG_CFG0, I2S_REG_CFG0_CLK_DIS, 0); ++ ++ dev_dbg(i2s->dev, "clk: %lu, rate: %u, div: %d\n", ++ clk, rate, div); ++ ++ return 0; ++} ++ ++static int ralink_i2s_set_bclk(struct snd_soc_dai *dai, int width, int rate) ++{ ++ struct ralink_i2s *i2s = snd_soc_dai_get_drvdata(dai); ++ unsigned long clk = clk_get_rate(i2s->clk); ++ int divint, divcomp; ++ ++ /* disable clock at slave mode */ ++ if ((i2s->fmt & SND_SOC_DAIFMT_MASTER_MASK) == ++ SND_SOC_DAIFMT_CBM_CFM) { ++ regmap_update_bits(i2s->regmap, I2S_REG_DIVCMP, ++ I2S_REG_DIVCMP_CLKEN, 0); ++ return 0; ++ } ++ ++ /* FREQOUT = FREQIN * (1/2) * (1/(DIVINT + DIVCOMP/512)) */ ++ clk = clk / (2 * 2 * width); ++ divint = clk / rate; ++ divcomp = ((clk % rate) * 512) / rate; ++ ++ if ((divint > I2S_REG_DIVINT_MASK) || ++ (divcomp > I2S_REG_DIVCMP_DIVCOMP_MASK)) ++ return -EINVAL; ++ ++ regmap_update_bits(i2s->regmap, I2S_REG_DIVINT, ++ I2S_REG_DIVINT_MASK, divint); ++ regmap_update_bits(i2s->regmap, I2S_REG_DIVCMP, ++ I2S_REG_DIVCMP_DIVCOMP_MASK, divcomp); ++ ++ /* enable clock */ ++ regmap_update_bits(i2s->regmap, I2S_REG_DIVCMP, I2S_REG_DIVCMP_CLKEN, ++ I2S_REG_DIVCMP_CLKEN); ++ ++ dev_dbg(i2s->dev, "clk: %lu, rate: %u, int: %d, comp: %d\n", ++ clk_get_rate(i2s->clk), rate, divint, divcomp); ++ ++ return 0; ++} ++ ++static int ralink_i2s_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) ++{ ++ struct ralink_i2s *i2s = snd_soc_dai_get_drvdata(dai); ++ unsigned int cfg0 = 0, cfg1 = 0; ++ ++ /* set master/slave audio interface */ ++ switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { ++ case SND_SOC_DAIFMT_CBM_CFM: ++ if (i2s->flags & RALINK_FLAGS_TXONLY) ++ cfg0 |= I2S_REG_CFG0_SLAVE_EN; ++ else ++ cfg0 |= I2S_REG_CFG0_SLAVE; ++ break; ++ case SND_SOC_DAIFMT_CBS_CFS: ++ break; ++ default: ++ return -EINVAL; ++ } ++ ++ /* interface format */ ++ switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { ++ case SND_SOC_DAIFMT_I2S: ++ break; ++ case SND_SOC_DAIFMT_RIGHT_J: ++ if (i2s->flags & RALINK_FLAGS_RIGHT_J) { ++ cfg1 |= I2S_REG_CFG1_RIGHT_J; ++ break; ++ } ++ return -EINVAL; ++ case SND_SOC_DAIFMT_LEFT_J: ++ if (i2s->flags & RALINK_FLAGS_LEFT_J) { ++ cfg1 |= I2S_REG_CFG1_LEFT_J; ++ break; ++ } ++ return -EINVAL; ++ default: ++ return -EINVAL; ++ } ++ ++ /* clock inversion */ ++ switch (fmt & SND_SOC_DAIFMT_INV_MASK) { ++ case SND_SOC_DAIFMT_NB_NF: ++ break; ++ default: ++ return -EINVAL; ++ } ++ ++ if (i2s->flags & RALINK_FLAGS_TXONLY) { ++ regmap_update_bits(i2s->regmap, I2S_REG_CFG0, ++ I2S_REG_CFG0_SLAVE_EN, cfg0); ++ } else { ++ regmap_update_bits(i2s->regmap, I2S_REG_CFG0, ++ I2S_REG_CFG0_SLAVE, cfg0); ++ } ++ regmap_update_bits(i2s->regmap, I2S_REG_CFG1, ++ I2S_REG_CFG1_FMT_MASK, cfg1); ++ i2s->fmt = fmt; ++ ++ return 0; ++} ++ ++static int ralink_i2s_startup(struct snd_pcm_substream *substream, ++ struct snd_soc_dai *dai) ++{ ++ struct ralink_i2s *i2s = snd_soc_dai_get_drvdata(dai); ++ ++ if (snd_soc_dai_active(dai)) ++ return 0; ++ ++ /* setup status interrupt */ ++#if (RALINK_I2S_INT_EN) ++ regmap_write(i2s->regmap, I2S_REG_INT_EN, 0xff); ++#else ++ regmap_write(i2s->regmap, I2S_REG_INT_EN, 0x0); ++#endif ++ ++ /* enable */ ++ regmap_update_bits(i2s->regmap, I2S_REG_CFG0, ++ I2S_REG_CFG0_EN | I2S_REG_CFG0_DMA_EN | ++ I2S_REG_CFG0_THRES_MASK, ++ I2S_REG_CFG0_EN | I2S_REG_CFG0_DMA_EN | ++ I2S_REG_CFG0_DFT_THRES); ++ ++ return 0; ++} ++ ++static void ralink_i2s_shutdown(struct snd_pcm_substream *substream, ++ struct snd_soc_dai *dai) ++{ ++ struct ralink_i2s *i2s = snd_soc_dai_get_drvdata(dai); ++ ++ /* If both streams are stopped, disable module and clock */ ++ if (snd_soc_dai_active(dai)) ++ return; ++ ++ /* ++ * datasheet mention when disable all control regs are cleared ++ * to initial values. need reinit at startup. ++ */ ++ regmap_update_bits(i2s->regmap, I2S_REG_CFG0, I2S_REG_CFG0_EN, 0); ++} ++ ++static int ralink_i2s_hw_params(struct snd_pcm_substream *substream, ++ struct snd_pcm_hw_params *params, struct snd_soc_dai *dai) ++{ ++ struct ralink_i2s *i2s = snd_soc_dai_get_drvdata(dai); ++ int width; ++ int ret; ++ ++ width = params_width(params); ++ switch (width) { ++ case 16: ++ if (i2s->flags & RALINK_FLAGS_24BIT) ++ regmap_update_bits(i2s->regmap, I2S_REG_CFG0, ++ I2S_REG_CFG0_DATA_24, 0); ++ break; ++ case 24: ++ if (i2s->flags & RALINK_FLAGS_24BIT) { ++ regmap_update_bits(i2s->regmap, I2S_REG_CFG0, ++ I2S_REG_CFG0_DATA_24, ++ I2S_REG_CFG0_DATA_24); ++ break; ++ } ++ return -EINVAL; ++ default: ++ return -EINVAL; ++ } ++ ++ switch (params_channels(params)) { ++ case 2: ++ break; ++ default: ++ return -EINVAL; ++ } ++ ++ if (i2s->flags & RALINK_FLAGS_ENDIAN) { ++ /* system endian */ ++#ifdef SNDRV_LITTLE_ENDIAN ++ regmap_update_bits(i2s->regmap, I2S_REG_CFG0, ++ I2S_REG_CFG0_SYS_BE, 0); ++#else ++ regmap_update_bits(i2s->regmap, I2S_REG_CFG0, ++ I2S_REG_CFG0_SYS_BE, ++ I2S_REG_CFG0_SYS_BE); ++#endif ++ ++ /* data endian */ ++ switch (params_format(params)) { ++ case SNDRV_PCM_FORMAT_S16_LE: ++ case SNDRV_PCM_FORMAT_S24_LE: ++ regmap_update_bits(i2s->regmap, I2S_REG_CFG0, ++ I2S_REG_CFG0_FMT_LE, ++ I2S_REG_CFG0_FMT_LE); ++ break; ++ case SNDRV_PCM_FORMAT_S16_BE: ++ case SNDRV_PCM_FORMAT_S24_BE: ++ regmap_update_bits(i2s->regmap, I2S_REG_CFG0, ++ I2S_REG_CFG0_FMT_LE, 0); ++ break; ++ default: ++ return -EINVAL; ++ } ++ } ++ ++ /* setup bclk rate */ ++ if (i2s->flags & RALINK_FLAGS_TXONLY) ++ ret = ralink_i2s_set_sys_bclk(dai, width, params_rate(params)); ++ else ++ ret = ralink_i2s_set_bclk(dai, width, params_rate(params)); ++ ++ return ret; ++} ++ ++static int ralink_i2s_trigger(struct snd_pcm_substream *substream, int cmd, ++ struct snd_soc_dai *dai) ++{ ++ struct ralink_i2s *i2s = snd_soc_dai_get_drvdata(dai); ++ unsigned int mask, val; ++ ++ if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) ++ mask = I2S_REG_CFG0_TX_EN; ++ else ++ mask = I2S_REG_CFG0_RX_EN; ++ ++ switch (cmd) { ++ case SNDRV_PCM_TRIGGER_START: ++ case SNDRV_PCM_TRIGGER_RESUME: ++ case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: ++ val = mask; ++ break; ++ case SNDRV_PCM_TRIGGER_STOP: ++ case SNDRV_PCM_TRIGGER_SUSPEND: ++ case SNDRV_PCM_TRIGGER_PAUSE_PUSH: ++ val = 0; ++ break; ++ default: ++ return -EINVAL; ++ } ++ ++ regmap_update_bits(i2s->regmap, I2S_REG_CFG0, mask, val); ++ ++ return 0; ++} ++ ++static void ralink_i2s_init_dma_data(struct ralink_i2s *i2s, ++ struct resource *res) ++{ ++ struct snd_dmaengine_dai_dma_data *dma_data; ++ ++ /* Playback */ ++ dma_data = &i2s->playback_dma_data; ++ dma_data->addr = res->start + I2S_REG_WREG; ++ dma_data->addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES; ++ dma_data->maxburst = 1; ++ dma_data->slave_id = i2s->txdma_req; ++ ++ if (i2s->flags & RALINK_FLAGS_TXONLY) ++ return; ++ ++ /* Capture */ ++ dma_data = &i2s->capture_dma_data; ++ dma_data->addr = res->start + I2S_REG_RREG; ++ dma_data->addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES; ++ dma_data->maxburst = 1; ++ dma_data->slave_id = i2s->rxdma_req; ++} ++ ++static int ralink_i2s_dai_probe(struct snd_soc_dai *dai) ++{ ++ struct ralink_i2s *i2s = snd_soc_dai_get_drvdata(dai); ++ ++ snd_soc_dai_init_dma_data(dai, &i2s->playback_dma_data, ++ &i2s->capture_dma_data); ++ ++ return 0; ++} ++ ++static int ralink_i2s_dai_remove(struct snd_soc_dai *dai) ++{ ++ return 0; ++} ++ ++static const struct snd_soc_dai_ops ralink_i2s_dai_ops = { ++ .set_sysclk = ralink_i2s_set_sysclk, ++ .set_fmt = ralink_i2s_set_fmt, ++ .startup = ralink_i2s_startup, ++ .shutdown = ralink_i2s_shutdown, ++ .hw_params = ralink_i2s_hw_params, ++ .trigger = ralink_i2s_trigger, ++}; ++ ++static struct snd_soc_dai_driver ralink_i2s_dai = { ++ .name = DRV_NAME, ++ .probe = ralink_i2s_dai_probe, ++ .remove = ralink_i2s_dai_remove, ++ .ops = &ralink_i2s_dai_ops, ++ .capture = { ++ .stream_name = "I2S Capture", ++ .channels_min = 2, ++ .channels_max = 2, ++ .rate_min = 5512, ++ .rate_max = 192000, ++ .rates = SNDRV_PCM_RATE_CONTINUOUS, ++ .formats = SNDRV_PCM_FMTBIT_S16_LE, ++ }, ++ .playback = { ++ .stream_name = "I2S Playback", ++ .channels_min = 2, ++ .channels_max = 2, ++ .rate_min = 5512, ++ .rate_max = 192000, ++ .rates = SNDRV_PCM_RATE_CONTINUOUS, ++ .formats = SNDRV_PCM_FMTBIT_S16_LE, ++ }, ++ .symmetric_rates = 1, ++}; ++ ++static struct snd_pcm_hardware ralink_pcm_hardware = { ++ .info = SNDRV_PCM_INFO_MMAP | ++ SNDRV_PCM_INFO_MMAP_VALID | ++ SNDRV_PCM_INFO_INTERLEAVED | ++ SNDRV_PCM_INFO_BLOCK_TRANSFER, ++ .formats = SNDRV_PCM_FMTBIT_S16_LE, ++ .channels_min = 2, ++ .channels_max = 2, ++ .period_bytes_min = PAGE_SIZE, ++ .period_bytes_max = PAGE_SIZE * 2, ++ .periods_min = 2, ++ .periods_max = 128, ++ .buffer_bytes_max = 128 * 1024, ++ .fifo_size = RALINK_I2S_FIFO_SIZE, ++}; ++ ++static const struct snd_dmaengine_pcm_config ralink_dmaengine_pcm_config = { ++ .prepare_slave_config = snd_dmaengine_pcm_prepare_slave_config, ++ .pcm_hardware = &ralink_pcm_hardware, ++ .prealloc_buffer_size = 256 * PAGE_SIZE, ++}; ++ ++static const struct snd_soc_component_driver ralink_i2s_component = { ++ .name = DRV_NAME, ++}; ++ ++static bool ralink_i2s_readable_reg(struct device *dev, unsigned int reg) ++{ ++ return true; ++} ++ ++static bool ralink_i2s_volatile_reg(struct device *dev, unsigned int reg) ++{ ++ switch (reg) { ++ case I2S_REG_INT_STATUS: ++ case I2S_REG_FF_STATUS: ++ return true; ++ } ++ return false; ++} ++ ++static bool ralink_i2s_writeable_reg(struct device *dev, unsigned int reg) ++{ ++ switch (reg) { ++ case I2S_REG_FF_STATUS: ++ case I2S_REG_RREG: ++ return false; ++ } ++ return true; ++} ++ ++static const struct regmap_config ralink_i2s_regmap_config = { ++ .reg_bits = 32, ++ .reg_stride = 4, ++ .val_bits = 32, ++ .writeable_reg = ralink_i2s_writeable_reg, ++ .readable_reg = ralink_i2s_readable_reg, ++ .volatile_reg = ralink_i2s_volatile_reg, ++ .max_register = I2S_REG_DIVINT, ++}; ++ ++#if (RALINK_I2S_INT_EN) ++static irqreturn_t ralink_i2s_irq(int irq, void *devid) ++{ ++ struct ralink_i2s *i2s = devid; ++ u32 status; ++ ++ regmap_read(i2s->regmap, I2S_REG_INT_STATUS, &status); ++ if (unlikely(!status)) ++ return IRQ_NONE; ++ ++ /* tx stats */ ++ if (status & I2S_REG_INT_TX_MASK) { ++ if (status & I2S_REG_INT_TX_THRES) ++ i2s->txstats.belowthres++; ++ if (status & I2S_REG_INT_TX_UNRUN) ++ i2s->txstats.underrun++; ++ if (status & I2S_REG_INT_TX_OVRUN) ++ i2s->txstats.overrun++; ++ if (status & I2S_REG_INT_TX_FAULT) ++ i2s->txstats.dmafault++; ++ } ++ ++ /* rx stats */ ++ if (status & I2S_REG_INT_RX_MASK) { ++ if (status & I2S_REG_INT_RX_THRES) ++ i2s->rxstats.belowthres++; ++ if (status & I2S_REG_INT_RX_UNRUN) ++ i2s->rxstats.underrun++; ++ if (status & I2S_REG_INT_RX_OVRUN) ++ i2s->rxstats.overrun++; ++ if (status & I2S_REG_INT_RX_FAULT) ++ i2s->rxstats.dmafault++; ++ } ++ ++ /* clean status bits */ ++ regmap_write(i2s->regmap, I2S_REG_INT_STATUS, status); ++ ++ return IRQ_HANDLED; ++} ++#endif ++ ++#if IS_ENABLED(CONFIG_DEBUG_FS) ++static int ralink_i2s_stats_show(struct seq_file *s, void *unused) ++{ ++ struct ralink_i2s *i2s = s->private; ++ ++ seq_printf(s, "tx stats\n"); ++ seq_printf(s, "\tbelow threshold\t%u\n", i2s->txstats.belowthres); ++ seq_printf(s, "\tunder run\t%u\n", i2s->txstats.underrun); ++ seq_printf(s, "\tover run\t%u\n", i2s->txstats.overrun); ++ seq_printf(s, "\tdma fault\t%u\n", i2s->txstats.dmafault); ++ ++ seq_printf(s, "rx stats\n"); ++ seq_printf(s, "\tbelow threshold\t%u\n", i2s->rxstats.belowthres); ++ seq_printf(s, "\tunder run\t%u\n", i2s->rxstats.underrun); ++ seq_printf(s, "\tover run\t%u\n", i2s->rxstats.overrun); ++ seq_printf(s, "\tdma fault\t%u\n", i2s->rxstats.dmafault); ++ ++ ralink_i2s_dump_regs(i2s); ++ ++ return 0; ++} ++ ++static int ralink_i2s_stats_open(struct inode *inode, struct file *file) ++{ ++ return single_open(file, ralink_i2s_stats_show, inode->i_private); ++} ++ ++static const struct file_operations ralink_i2s_stats_ops = { ++ .open = ralink_i2s_stats_open, ++ .read = seq_read, ++ .llseek = seq_lseek, ++ .release = single_release, ++}; ++ ++static inline int ralink_i2s_debugfs_create(struct ralink_i2s *i2s) ++{ ++ i2s->dbg_dir = debugfs_create_dir(dev_name(i2s->dev), NULL); ++ if (!i2s->dbg_dir) ++ return -ENOMEM; ++ ++ i2s->dbg_stats = debugfs_create_file("stats", S_IRUGO, ++ i2s->dbg_dir, i2s, &ralink_i2s_stats_ops); ++ if (!i2s->dbg_stats) { ++ debugfs_remove(i2s->dbg_dir); ++ return -ENOMEM; ++ } ++ ++ return 0; ++} ++ ++static inline void ralink_i2s_debugfs_remove(struct ralink_i2s *i2s) ++{ ++ debugfs_remove(i2s->dbg_stats); ++ debugfs_remove(i2s->dbg_dir); ++} ++#else ++static inline int ralink_i2s_debugfs_create(struct ralink_i2s *i2s) ++{ ++ return 0; ++} ++ ++static inline void ralink_i2s_debugfs_remove(struct ralink_i2s *i2s) ++{ ++} ++#endif ++ ++/* ++ * TODO: these refclk setup functions should use ++ * clock framework instead. hardcode it now. ++ */ ++static void rt3350_refclk_setup(void) ++{ ++ uint32_t data; ++ ++ /* set refclk output 12Mhz clock */ ++ data = rt_sysc_r32(0x2c); ++ data |= (0x1 << 8); ++ rt_sysc_w32(data, 0x2c); ++} ++ ++static void rt3883_refclk_setup(void) ++{ ++ uint32_t data; ++ ++ /* set refclk output 12Mhz clock */ ++ data = rt_sysc_r32(0x2c); ++ data &= ~(0x3 << 13); ++ data |= (0x1 << 13); ++ rt_sysc_w32(data, 0x2c); ++} ++ ++static void rt3552_refclk_setup(void) ++{ ++ uint32_t data; ++ ++ /* set refclk output 12Mhz clock */ ++ data = rt_sysc_r32(0x2c); ++ data &= ~(0xf << 8); ++ data |= (0x3 << 8); ++ rt_sysc_w32(data, 0x2c); ++} ++ ++static void mt7620_refclk_setup(void) ++{ ++ uint32_t data; ++ ++ /* set refclk output 12Mhz clock */ ++ data = rt_sysc_r32(0x2c); ++ data &= ~(0x7 << 9); ++ data |= 0x1 << 9; ++ rt_sysc_w32(data, 0x2c); ++} ++ ++static void mt7621_refclk_setup(void) ++{ ++ uint32_t data; ++ ++ /* set refclk output 12Mhz clock */ ++ data = rt_sysc_r32(0x2c); ++ data &= ~(0x1f << 18); ++ data |= (0x19 << 18); ++ data &= ~(0x1f << 12); ++ data |= (0x1 << 12); ++ data &= ~(0x7 << 9); ++ data |= (0x5 << 9); ++ rt_sysc_w32(data, 0x2c); ++} ++ ++static void mt7628_refclk_setup(void) ++{ ++ uint32_t data; ++ ++ /* set i2s and refclk digital pad */ ++ data = rt_sysc_r32(0x3c); ++ data |= 0x1f; ++ rt_sysc_w32(data, 0x3c); ++ ++ /* Adjust REFCLK0's driving strength */ ++ data = rt_sysc_r32(0x1354); ++ data &= ~(0x1 << 5); ++ rt_sysc_w32(data, 0x1354); ++ data = rt_sysc_r32(0x1364); ++ data |= ~(0x1 << 5); ++ rt_sysc_w32(data, 0x1364); ++ ++ /* set refclk output 12Mhz clock */ ++ data = rt_sysc_r32(0x2c); ++ data &= ~(0x7 << 9); ++ data |= 0x1 << 9; ++ rt_sysc_w32(data, 0x2c); ++} ++ ++struct rt_i2s_data { ++ u32 flags; ++ void (*refclk_setup)(void); ++}; ++ ++struct rt_i2s_data rt3050_i2s_data = { .flags = RALINK_FLAGS_TXONLY }; ++struct rt_i2s_data rt3350_i2s_data = { .flags = RALINK_FLAGS_TXONLY, ++ .refclk_setup = rt3350_refclk_setup }; ++struct rt_i2s_data rt3883_i2s_data = { ++ .flags = (RALINK_FLAGS_LEFT_J | RALINK_FLAGS_RIGHT_J), ++ .refclk_setup = rt3883_refclk_setup }; ++struct rt_i2s_data rt3352_i2s_data = { .refclk_setup = rt3552_refclk_setup}; ++struct rt_i2s_data mt7620_i2s_data = { .refclk_setup = mt7620_refclk_setup}; ++struct rt_i2s_data mt7621_i2s_data = { .refclk_setup = mt7621_refclk_setup}; ++struct rt_i2s_data mt7628_i2s_data = { ++ .flags = (RALINK_FLAGS_ENDIAN | RALINK_FLAGS_24BIT | ++ RALINK_FLAGS_LEFT_J), ++ .refclk_setup = mt7628_refclk_setup}; ++ ++static const struct of_device_id ralink_i2s_match_table[] = { ++ { .compatible = "ralink,rt3050-i2s", ++ .data = (void *)&rt3050_i2s_data }, ++ { .compatible = "ralink,rt3350-i2s", ++ .data = (void *)&rt3350_i2s_data }, ++ { .compatible = "ralink,rt3883-i2s", ++ .data = (void *)&rt3883_i2s_data }, ++ { .compatible = "ralink,rt3352-i2s", ++ .data = (void *)&rt3352_i2s_data }, ++ { .compatible = "mediatek,mt7620-i2s", ++ .data = (void *)&mt7620_i2s_data }, ++ { .compatible = "mediatek,mt7621-i2s", ++ .data = (void *)&mt7621_i2s_data }, ++ { .compatible = "mediatek,mt7628-i2s", ++ .data = (void *)&mt7628_i2s_data }, ++ {}, ++}; ++MODULE_DEVICE_TABLE(of, ralink_i2s_match_table); ++ ++static int ralink_i2s_probe(struct platform_device *pdev) ++{ ++ const struct of_device_id *match; ++ struct device_node *np = pdev->dev.of_node; ++ struct ralink_i2s *i2s; ++ struct resource *res; ++ int irq, ret; ++ u32 dma_req; ++ struct rt_i2s_data *data; ++ ++ i2s = devm_kzalloc(&pdev->dev, sizeof(*i2s), GFP_KERNEL); ++ if (!i2s) ++ return -ENOMEM; ++ ++ platform_set_drvdata(pdev, i2s); ++ i2s->dev = &pdev->dev; ++ ++ match = of_match_device(ralink_i2s_match_table, &pdev->dev); ++ if (!match) ++ return -EINVAL; ++ data = (struct rt_i2s_data *)match->data; ++ i2s->flags = data->flags; ++ /* setup out 12Mhz refclk to codec as mclk */ ++ if (data->refclk_setup) ++ data->refclk_setup(); ++ ++ if (of_property_read_u32(np, "txdma-req", &dma_req)) { ++ dev_err(&pdev->dev, "no txdma-req define\n"); ++ return -EINVAL; ++ } ++ i2s->txdma_req = (u16)dma_req; ++ if (!(i2s->flags & RALINK_FLAGS_TXONLY)) { ++ if (of_property_read_u32(np, "rxdma-req", &dma_req)) { ++ dev_err(&pdev->dev, "no rxdma-req define\n"); ++ return -EINVAL; ++ } ++ i2s->rxdma_req = (u16)dma_req; ++ } ++ ++ res = platform_get_resource(pdev, IORESOURCE_MEM, 0); ++ i2s->regs = devm_ioremap_resource(&pdev->dev, res); ++ if (IS_ERR(i2s->regs)) ++ return PTR_ERR(i2s->regs); ++ ++ i2s->regmap = devm_regmap_init_mmio(&pdev->dev, i2s->regs, ++ &ralink_i2s_regmap_config); ++ if (IS_ERR(i2s->regmap)) { ++ dev_err(&pdev->dev, "regmap init failed\n"); ++ return PTR_ERR(i2s->regmap); ++ } ++ ++ irq = platform_get_irq(pdev, 0); ++ if (irq < 0) { ++ dev_err(&pdev->dev, "failed to get irq\n"); ++ return -EINVAL; ++ } ++ ++#if (RALINK_I2S_INT_EN) ++ ret = devm_request_irq(&pdev->dev, irq, ralink_i2s_irq, ++ 0, dev_name(&pdev->dev), i2s); ++ if (ret) { ++ dev_err(&pdev->dev, "failed to request irq\n"); ++ return ret; ++ } ++#endif ++ ++ i2s->clk = devm_clk_get(&pdev->dev, NULL); ++ if (IS_ERR(i2s->clk)) { ++ dev_err(&pdev->dev, "no clock defined\n"); ++ return PTR_ERR(i2s->clk); ++ } ++ ++ ret = clk_prepare_enable(i2s->clk); ++ if (ret) ++ return ret; ++ ++ ralink_i2s_init_dma_data(i2s, res); ++ ++ device_reset(&pdev->dev); ++ ++ ret = ralink_i2s_debugfs_create(i2s); ++ if (ret) { ++ dev_err(&pdev->dev, "create debugfs failed\n"); ++ goto err_clk_disable; ++ } ++ ++ /* enable 24bits support */ ++ if (i2s->flags & RALINK_FLAGS_24BIT) { ++ ralink_i2s_dai.capture.formats |= SNDRV_PCM_FMTBIT_S24_LE; ++ ralink_i2s_dai.playback.formats |= SNDRV_PCM_FMTBIT_S24_LE; ++ } ++ ++ /* enable big endian support */ ++ if (i2s->flags & RALINK_FLAGS_ENDIAN) { ++ ralink_i2s_dai.capture.formats |= SNDRV_PCM_FMTBIT_S16_BE; ++ ralink_i2s_dai.playback.formats |= SNDRV_PCM_FMTBIT_S16_BE; ++ ralink_pcm_hardware.formats |= SNDRV_PCM_FMTBIT_S16_BE; ++ if (i2s->flags & RALINK_FLAGS_24BIT) { ++ ralink_i2s_dai.capture.formats |= ++ SNDRV_PCM_FMTBIT_S24_BE; ++ ralink_i2s_dai.playback.formats |= ++ SNDRV_PCM_FMTBIT_S24_BE; ++ ralink_pcm_hardware.formats |= ++ SNDRV_PCM_FMTBIT_S24_BE; ++ } ++ } ++ ++ /* disable capture support */ ++ if (i2s->flags & RALINK_FLAGS_TXONLY) ++ memset(&ralink_i2s_dai.capture, sizeof(ralink_i2s_dai.capture), ++ 0); ++ ++ ret = devm_snd_soc_register_component(&pdev->dev, &ralink_i2s_component, ++ &ralink_i2s_dai, 1); ++ if (ret) ++ goto err_debugfs; ++ ++ ret = devm_snd_dmaengine_pcm_register(&pdev->dev, ++ &ralink_dmaengine_pcm_config, ++ SND_DMAENGINE_PCM_FLAG_COMPAT); ++ if (ret) ++ goto err_debugfs; ++ ++ dev_info(i2s->dev, "mclk %luMHz\n", clk_get_rate(i2s->clk) / 1000000); ++ ++ return 0; ++ ++err_debugfs: ++ ralink_i2s_debugfs_remove(i2s); ++ ++err_clk_disable: ++ clk_disable_unprepare(i2s->clk); ++ ++ return ret; ++} ++ ++static int ralink_i2s_remove(struct platform_device *pdev) ++{ ++ struct ralink_i2s *i2s = platform_get_drvdata(pdev); ++ ++ ralink_i2s_debugfs_remove(i2s); ++ clk_disable_unprepare(i2s->clk); ++ ++ return 0; ++} ++ ++static struct platform_driver ralink_i2s_driver = { ++ .probe = ralink_i2s_probe, ++ .remove = ralink_i2s_remove, ++ .driver = { ++ .name = DRV_NAME, ++ .of_match_table = ralink_i2s_match_table, ++ }, ++}; ++module_platform_driver(ralink_i2s_driver); ++ ++MODULE_AUTHOR("Lars-Peter Clausen, <lars@metafoo.de>"); ++MODULE_DESCRIPTION("Ralink/MediaTek I2S driver"); ++MODULE_LICENSE("GPL"); ++MODULE_ALIAS("platform:" DRV_NAME); diff --git a/target/linux/ramips/patches-5.15/840-serial-add-ugly-custom-baud-rate-hack.patch b/target/linux/ramips/patches-5.15/840-serial-add-ugly-custom-baud-rate-hack.patch new file mode 100644 index 0000000000..d7cf2dfd48 --- /dev/null +++ b/target/linux/ramips/patches-5.15/840-serial-add-ugly-custom-baud-rate-hack.patch @@ -0,0 +1,22 @@ +From a7eb46e0ea4a11e4dfb56ab129bf816d1059a6c5 Mon Sep 17 00:00:00 2001 +From: John Crispin <blogic@openwrt.org> +Date: Mon, 7 Dec 2015 17:31:08 +0100 +Subject: [PATCH 51/53] serial: add ugly custom baud rate hack + +Signed-off-by: John Crispin <blogic@openwrt.org> +--- + drivers/tty/serial/serial_core.c | 3 +++ + 1 file changed, 3 insertions(+) + +--- a/drivers/tty/serial/serial_core.c ++++ b/drivers/tty/serial/serial_core.c +@@ -401,6 +401,9 @@ uart_get_baud_rate(struct uart_port *por + break; + } + ++ if (tty_termios_baud_rate(termios) == 2500000) ++ return 250000; ++ + for (try = 0; try < 2; try++) { + baud = tty_termios_baud_rate(termios); + diff --git a/target/linux/ramips/patches-5.15/845-pwm-add-mediatek-support.patch b/target/linux/ramips/patches-5.15/845-pwm-add-mediatek-support.patch new file mode 100644 index 0000000000..7792b7d63c --- /dev/null +++ b/target/linux/ramips/patches-5.15/845-pwm-add-mediatek-support.patch @@ -0,0 +1,217 @@ +From fc8f96309c21c1bc3276427309cd7d361347d66e Mon Sep 17 00:00:00 2001 +From: John Crispin <blogic@openwrt.org> +Date: Mon, 7 Dec 2015 17:16:50 +0100 +Subject: [PATCH 52/53] pwm: add mediatek support + +Signed-off-by: John Crispin <blogic@openwrt.org> +--- + drivers/pwm/Kconfig | 9 +++ + drivers/pwm/Makefile | 1 + + drivers/pwm/pwm-mediatek.c | 173 ++++++++++++++++++++++++++++++++++++++++++++ + 3 files changed, 183 insertions(+) + create mode 100644 drivers/pwm/pwm-mediatek.c + +--- a/drivers/pwm/Kconfig ++++ b/drivers/pwm/Kconfig +@@ -383,6 +383,15 @@ config PWM_MEDIATEK + To compile this driver as a module, choose M here: the module + will be called pwm-mediatek. + ++config PWM_MEDIATEK_RAMIPS ++ tristate "Mediatek PWM support" ++ depends on RALINK && OF ++ help ++ Generic PWM framework driver for Mediatek ARM SoC. ++ ++ To compile this driver as a module, choose M here: the module ++ will be called pwm-mxs. ++ + config PWM_MXS + tristate "Freescale MXS PWM support" + depends on ARCH_MXS || COMPILE_TEST +--- a/drivers/pwm/Makefile ++++ b/drivers/pwm/Makefile +@@ -33,6 +33,7 @@ obj-$(CONFIG_PWM_LPSS_PCI) += pwm-lpss-p + obj-$(CONFIG_PWM_LPSS_PLATFORM) += pwm-lpss-platform.o + obj-$(CONFIG_PWM_MESON) += pwm-meson.o + obj-$(CONFIG_PWM_MEDIATEK) += pwm-mediatek.o ++obj-$(CONFIG_PWM_MEDIATEK_RAMIPS) += pwm-mediatek-ramips.o + obj-$(CONFIG_PWM_MTK_DISP) += pwm-mtk-disp.o + obj-$(CONFIG_PWM_MXS) += pwm-mxs.o + obj-$(CONFIG_PWM_NTXEC) += pwm-ntxec.o +--- /dev/null ++++ b/drivers/pwm/pwm-mediatek-ramips.c +@@ -0,0 +1,173 @@ ++/* ++ * Mediatek Pulse Width Modulator driver ++ * ++ * Copyright (C) 2015 John Crispin <blogic@openwrt.org> ++ * ++ * This file is licensed under the terms of the GNU General Public ++ * License version 2. This program is licensed "as is" without any ++ * warranty of any kind, whether express or implied. ++ */ ++ ++#include <linux/err.h> ++#include <linux/io.h> ++#include <linux/ioport.h> ++#include <linux/kernel.h> ++#include <linux/module.h> ++#include <linux/of.h> ++#include <linux/platform_device.h> ++#include <linux/pwm.h> ++#include <linux/slab.h> ++#include <linux/types.h> ++ ++#define NUM_PWM 4 ++ ++/* PWM registers and bits definitions */ ++#define PWMCON 0x00 ++#define PWMHDUR 0x04 ++#define PWMLDUR 0x08 ++#define PWMGDUR 0x0c ++#define PWMWAVENUM 0x28 ++#define PWMDWIDTH 0x2c ++#define PWMTHRES 0x30 ++ ++/** ++ * struct mtk_pwm_chip - struct representing pwm chip ++ * ++ * @mmio_base: base address of pwm chip ++ * @chip: linux pwm chip representation ++ */ ++struct mtk_pwm_chip { ++ void __iomem *mmio_base; ++ struct pwm_chip chip; ++}; ++ ++static inline struct mtk_pwm_chip *to_mtk_pwm_chip(struct pwm_chip *chip) ++{ ++ return container_of(chip, struct mtk_pwm_chip, chip); ++} ++ ++static inline u32 mtk_pwm_readl(struct mtk_pwm_chip *chip, unsigned int num, ++ unsigned long offset) ++{ ++ return ioread32(chip->mmio_base + 0x10 + (num * 0x40) + offset); ++} ++ ++static inline void mtk_pwm_writel(struct mtk_pwm_chip *chip, ++ unsigned int num, unsigned long offset, ++ unsigned long val) ++{ ++ iowrite32(val, chip->mmio_base + 0x10 + (num * 0x40) + offset); ++} ++ ++static int mtk_pwm_config(struct pwm_chip *chip, struct pwm_device *pwm, ++ int duty_ns, int period_ns) ++{ ++ struct mtk_pwm_chip *pc = to_mtk_pwm_chip(chip); ++ u32 resolution = 100 / 4; ++ u32 clkdiv = 0; ++ ++ while (period_ns / resolution > 8191) { ++ clkdiv++; ++ resolution *= 2; ++ } ++ ++ if (clkdiv > 7) ++ return -1; ++ ++ mtk_pwm_writel(pc, pwm->hwpwm, PWMCON, BIT(15) | BIT(3) | clkdiv); ++ mtk_pwm_writel(pc, pwm->hwpwm, PWMDWIDTH, period_ns / resolution); ++ mtk_pwm_writel(pc, pwm->hwpwm, PWMTHRES, duty_ns / resolution); ++ return 0; ++} ++ ++static int mtk_pwm_enable(struct pwm_chip *chip, struct pwm_device *pwm) ++{ ++ struct mtk_pwm_chip *pc = to_mtk_pwm_chip(chip); ++ u32 val; ++ ++ val = ioread32(pc->mmio_base); ++ val |= BIT(pwm->hwpwm); ++ iowrite32(val, pc->mmio_base); ++ ++ return 0; ++} ++ ++static void mtk_pwm_disable(struct pwm_chip *chip, struct pwm_device *pwm) ++{ ++ struct mtk_pwm_chip *pc = to_mtk_pwm_chip(chip); ++ u32 val; ++ ++ val = ioread32(pc->mmio_base); ++ val &= ~BIT(pwm->hwpwm); ++ iowrite32(val, pc->mmio_base); ++} ++ ++static const struct pwm_ops mtk_pwm_ops = { ++ .config = mtk_pwm_config, ++ .enable = mtk_pwm_enable, ++ .disable = mtk_pwm_disable, ++ .owner = THIS_MODULE, ++}; ++ ++static int mtk_pwm_probe(struct platform_device *pdev) ++{ ++ struct mtk_pwm_chip *pc; ++ struct resource *r; ++ int ret; ++ ++ pc = devm_kzalloc(&pdev->dev, sizeof(*pc), GFP_KERNEL); ++ if (!pc) ++ return -ENOMEM; ++ ++ r = platform_get_resource(pdev, IORESOURCE_MEM, 0); ++ pc->mmio_base = devm_ioremap_resource(&pdev->dev, r); ++ if (IS_ERR(pc->mmio_base)) ++ return PTR_ERR(pc->mmio_base); ++ ++ platform_set_drvdata(pdev, pc); ++ ++ pc->chip.dev = &pdev->dev; ++ pc->chip.ops = &mtk_pwm_ops; ++ pc->chip.base = -1; ++ pc->chip.npwm = NUM_PWM; ++ ++ ret = pwmchip_add(&pc->chip); ++ if (ret < 0) ++ dev_err(&pdev->dev, "pwmchip_add() failed: %d\n", ret); ++ ++ return ret; ++} ++ ++static int mtk_pwm_remove(struct platform_device *pdev) ++{ ++ struct mtk_pwm_chip *pc = platform_get_drvdata(pdev); ++ int i; ++ ++ for (i = 0; i < NUM_PWM; i++) ++ pwm_disable(&pc->chip.pwms[i]); ++ ++ return pwmchip_remove(&pc->chip); ++} ++ ++static const struct of_device_id mtk_pwm_of_match[] = { ++ { .compatible = "mediatek,mt7628-pwm" }, ++ { } ++}; ++ ++MODULE_DEVICE_TABLE(of, mtk_pwm_of_match); ++ ++static struct platform_driver mtk_pwm_driver = { ++ .driver = { ++ .name = "mtk-pwm", ++ .owner = THIS_MODULE, ++ .of_match_table = mtk_pwm_of_match, ++ }, ++ .probe = mtk_pwm_probe, ++ .remove = mtk_pwm_remove, ++}; ++ ++module_platform_driver(mtk_pwm_driver); ++ ++MODULE_LICENSE("GPL"); ++MODULE_AUTHOR("John Crispin <blogic@openwrt.org>"); ++MODULE_ALIAS("platform:mtk-pwm"); diff --git a/target/linux/ramips/patches-5.15/850-awake-rt305x-dwc2-controller.patch b/target/linux/ramips/patches-5.15/850-awake-rt305x-dwc2-controller.patch new file mode 100644 index 0000000000..28f72a23ea --- /dev/null +++ b/target/linux/ramips/patches-5.15/850-awake-rt305x-dwc2-controller.patch @@ -0,0 +1,15 @@ +--- a/drivers/usb/dwc2/platform.c ++++ b/drivers/usb/dwc2/platform.c +@@ -510,6 +510,12 @@ static int dwc2_driver_probe(struct plat + if (retval) + return retval; + ++ /* Enable USB port before any regs access */ ++ if (readl(hsotg->regs + PCGCTL) & 0x0f) { ++ writel(0x00, hsotg->regs + PCGCTL); ++ /* TODO: mdelay(25) here? vendor driver don't use it */ ++ } ++ + hsotg->needs_byte_swap = dwc2_check_core_endianness(hsotg); + + retval = dwc2_get_dr_mode(hsotg); diff --git a/target/linux/ramips/patches-5.15/855-linkit_bootstrap.patch b/target/linux/ramips/patches-5.15/855-linkit_bootstrap.patch new file mode 100644 index 0000000000..cd81601a72 --- /dev/null +++ b/target/linux/ramips/patches-5.15/855-linkit_bootstrap.patch @@ -0,0 +1,97 @@ +--- a/drivers/misc/Makefile ++++ b/drivers/misc/Makefile +@@ -50,6 +50,7 @@ obj-$(CONFIG_ECHO) += echo/ + obj-$(CONFIG_CXL_BASE) += cxl/ + obj-$(CONFIG_DW_XDATA_PCIE) += dw-xdata-pcie.o + obj-$(CONFIG_PCI_ENDPOINT_TEST) += pci_endpoint_test.o ++obj-$(CONFIG_SOC_MT7620) += linkit.o + obj-$(CONFIG_OCXL) += ocxl/ + obj-$(CONFIG_BCM_VK) += bcm-vk/ + obj-y += cardreader/ +--- /dev/null ++++ b/drivers/misc/linkit.c +@@ -0,0 +1,84 @@ ++/* ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU General Public License version 2 as ++ * publishhed by the Free Software Foundation. ++ * ++ * Copyright (C) 2015 John Crispin <blogic@openwrt.org> ++ */ ++ ++#include <linux/module.h> ++#include <linux/platform_device.h> ++#include <linux/of.h> ++#include <linux/mtd/mtd.h> ++#include <linux/gpio.h> ++ ++#define LINKIT_LATCH_GPIO 11 ++ ++struct linkit_hw_data { ++ char board[16]; ++ char rev[16]; ++}; ++ ++static void sanify_string(char *s) ++{ ++ int i; ++ ++ for (i = 0; i < 15; i++) ++ if (s[i] <= 0x20) ++ s[i] = '\0'; ++ s[15] = '\0'; ++} ++ ++static int linkit_probe(struct platform_device *pdev) ++{ ++ struct linkit_hw_data hw; ++ struct mtd_info *mtd; ++ size_t retlen; ++ int ret; ++ ++ mtd = get_mtd_device_nm("factory"); ++ if (IS_ERR(mtd)) ++ return PTR_ERR(mtd); ++ ++ ret = mtd_read(mtd, 0x400, sizeof(hw), &retlen, (u_char *) &hw); ++ put_mtd_device(mtd); ++ ++ sanify_string(hw.board); ++ sanify_string(hw.rev); ++ ++ dev_info(&pdev->dev, "Version : %s\n", hw.board); ++ dev_info(&pdev->dev, "Revision : %s\n", hw.rev); ++ ++ if (!strcmp(hw.board, "LINKITS7688")) { ++ dev_info(&pdev->dev, "setting up bootstrap latch\n"); ++ ++ if (devm_gpio_request(&pdev->dev, LINKIT_LATCH_GPIO, "bootstrap")) { ++ dev_err(&pdev->dev, "failed to setup bootstrap gpio\n"); ++ return -1; ++ } ++ gpio_direction_output(LINKIT_LATCH_GPIO, 0); ++ } ++ ++ return 0; ++} ++ ++static const struct of_device_id linkit_match[] = { ++ { .compatible = "mediatek,linkit" }, ++ {}, ++}; ++MODULE_DEVICE_TABLE(of, linkit_match); ++ ++static struct platform_driver linkit_driver = { ++ .probe = linkit_probe, ++ .driver = { ++ .name = "mtk-linkit", ++ .owner = THIS_MODULE, ++ .of_match_table = linkit_match, ++ }, ++}; ++ ++int __init linkit_init(void) ++{ ++ return platform_driver_register(&linkit_driver); ++} ++late_initcall_sync(linkit_init); |