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author | James <> | 2015-11-04 11:49:21 +0000 |
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committer | James <> | 2015-11-04 11:49:21 +0000 |
commit | 716ca530e1c4515d8683c9d5be3d56b301758b66 (patch) | |
tree | 700eb5bcc1a462a5f21dcec15ce7c97ecfefa772 /target/linux/cns3xxx | |
download | trunk-47381-716ca530e1c4515d8683c9d5be3d56b301758b66.tar.gz trunk-47381-716ca530e1c4515d8683c9d5be3d56b301758b66.tar.bz2 trunk-47381-716ca530e1c4515d8683c9d5be3d56b301758b66.zip |
Diffstat (limited to 'target/linux/cns3xxx')
45 files changed, 5938 insertions, 0 deletions
diff --git a/target/linux/cns3xxx/Makefile b/target/linux/cns3xxx/Makefile new file mode 100644 index 0000000..0b4432a --- /dev/null +++ b/target/linux/cns3xxx/Makefile @@ -0,0 +1,30 @@ +# +# Copyright (C) 2010-2012 OpenWrt.org +# +# This is free software, licensed under the GNU General Public License v2. +# See /LICENSE for more information. +# +include $(TOPDIR)/rules.mk + +ARCH:=arm +BOARD:=cns3xxx +BOARDNAME:=Cavium Networks Econa CNS3xxx +FEATURES:=squashfs fpu gpio pcie usb usbgadget +CPU_TYPE:=mpcore +CPU_SUBTYPE:=vfp +MAINTAINER:=Felix Fietkau <nbd@openwrt.org> + +KERNEL_PATCHVER:=3.18 + +include $(INCLUDE_DIR)/target.mk + +define Target/Description + Build images for Cavium Networks Econa CNS3xxx based boards, + eg. the Gateworks Laguna family +endef + +KERNELNAME:=zImage + +DEFAULT_PACKAGES += kmod-ath9k kmod-usb2 wpad-mini + +$(eval $(call BuildTarget)) diff --git a/target/linux/cns3xxx/base-files/etc/init.d/netdev-cpu b/target/linux/cns3xxx/base-files/etc/init.d/netdev-cpu new file mode 100755 index 0000000..3a2a57b --- /dev/null +++ b/target/linux/cns3xxx/base-files/etc/init.d/netdev-cpu @@ -0,0 +1,21 @@ +#!/bin/sh /etc/rc.common + +START=99 + +get_irq() { + local name="$1" + grep -m 1 "$name" /proc/interrupts | cut -d: -f1 | sed 's, *,,' +} + +set_irq_affinity() { + local name="$1" + local val="$2" + local irq="$(get_irq "$name")" + [ -n "$irq" ] || return + echo "$val" > "/proc/irq/$irq/smp_affinity" +} + +start() { + set_irq_affinity gig_switch 2 + set_irq_affinity gig_stat 2 +} diff --git a/target/linux/cns3xxx/base-files/lib/cns3xxx.sh b/target/linux/cns3xxx/base-files/lib/cns3xxx.sh new file mode 100644 index 0000000..476f9be --- /dev/null +++ b/target/linux/cns3xxx/base-files/lib/cns3xxx.sh @@ -0,0 +1,22 @@ +#!/bin/sh +# +# Copyright (C) 2012 OpenWrt.org +# + +cns3xxx_board_name() { + local machine + local name + + machine=$(awk 'BEGIN{FS="[ \t]+:[ \t]"} /Hardware/ {print $2}' /proc/cpuinfo) + + case "$machine" in + "Gateworks Corporation Laguna"*) + name="laguna" + ;; + *) + name="generic"; + ;; + esac + + echo $name +} diff --git a/target/linux/cns3xxx/base-files/lib/upgrade/platform.sh b/target/linux/cns3xxx/base-files/lib/upgrade/platform.sh new file mode 100644 index 0000000..6d94a53 --- /dev/null +++ b/target/linux/cns3xxx/base-files/lib/upgrade/platform.sh @@ -0,0 +1,122 @@ +. /lib/cns3xxx.sh + +RAMFS_COPY_DATA="/lib/cns3xxx.sh" + +CI_BLKSZ=65536 + +platform_find_partitions() { + local first dev size erasesize name + while read dev size erasesize name; do + name=${name#'"'}; name=${name%'"'} + case "$name" in + vmlinux.bin.l7|kernel|linux|rootfs) + if [ -z "$first" ]; then + first="$name" + else + echo "$erasesize:$first:$name" + break + fi + ;; + esac + done < /proc/mtd +} + +platform_find_kernelpart() { + local part + for part in "${1%:*}" "${1#*:}"; do + case "$part" in + vmlinux.bin.l7|kernel|linux) + echo "$part" + break + ;; + esac + done +} + +platform_do_upgrade_combined() { + local partitions=$(platform_find_partitions) + local kernelpart=$(platform_find_kernelpart "${partitions#*:}") + local erase_size=$((0x${partitions%%:*})); partitions="${partitions#*:}" + local kern_length=0x$(dd if="$1" bs=2 skip=1 count=4 2>/dev/null) + local kern_blocks=$(($kern_length / $CI_BLKSZ)) + local root_blocks=$((0x$(dd if="$1" bs=2 skip=5 count=4 2>/dev/null) / $CI_BLKSZ)) + + v "platform_do_upgrade_combined" + v "partitions=$partitions" + v "kernelpart=$kernelpart" + v "erase_size=$erase_size" + v "kern_blocks=$kern_blocks" + v "root_blocks=$root_blocks" + + if [ -n "$partitions" ] && [ -n "$kernelpart" ] && \ + [ ${kern_blocks:-0} -gt 0 ] && \ + [ ${root_blocks:-0} -gt 0 ] && \ + [ ${erase_size:-0} -gt 0 ]; + then + local append="" + [ -f "$CONF_TAR" -a "$SAVE_CONFIG" -eq 1 ] && append="-j $CONF_TAR" + + dd if="$1" bs=$CI_BLKSZ skip=1 count=$kern_blocks 2>/dev/null | mtd write - kernel + dd if="$1" bs=$CI_BLKSZ skip=$((1+$kern_blocks)) count=$root_blocks 2>/dev/null | \ + mtd -r $append write - rootfs + else + echo "invalid image" + fi +} + +platform_check_image() { + local board=$(cns3xxx_board_name) + local magic="$(get_magic_word "$1")" + local magic_long="$(get_magic_long "$1")" + + [ "$#" -gt 1 ] && return 1 + + case "$board" in + laguna) + [ "$magic" != "4349" ] && { + echo "Invalid image. Use *-sysupgrade.bin files on this board" + return 1 + } + + local md5_img=$(dd if="$1" bs=2 skip=9 count=16 2>/dev/null) + local md5_chk=$(dd if="$1" bs=$CI_BLKSZ skip=1 2>/dev/null | md5sum -); md5_chk="${md5_chk%% *}" + + if [ -n "$md5_img" -a -n "$md5_chk" ] && [ "$md5_img" = "$md5_chk" ]; then + return 0 + else + echo "Invalid image. Contents do not match checksum (image:$md5_img calculated:$md5_chk)" + return 1 + fi + return 0 + ;; + esac + + echo "Sysupgrade is not yet supported on $board." + return 1 +} + +platform_do_upgrade() { + local board=$(cns3xxx_board_name) + + v "board=$board" + case "$board" in + laguna) + platform_do_upgrade_combined "$ARGV" + ;; + *) + default_do_upgrade "$ARGV" + ;; + esac +} + +disable_watchdog() { + v "killing watchdog" + killall watchdog + ( ps | grep -v 'grep' | grep '/dev/watchdog' ) && { + echo 'Could not disable watchdog' + return 1 + } +} + +# CONFIG_WATCHDOG_NOWAYOUT=y - can't kill watchdog unless kernel cmdline has a mpcore_wdt.nowayout=0 +#append sysupgrade_pre_upgrade disable_watchdog diff --git a/target/linux/cns3xxx/config-3.18 b/target/linux/cns3xxx/config-3.18 new file mode 100644 index 0000000..6614b38 --- /dev/null +++ b/target/linux/cns3xxx/config-3.18 @@ -0,0 +1,286 @@ +CONFIG_ALIGNMENT_TRAP=y +CONFIG_ARCH_BINFMT_ELF_RANDOMIZE_PIE=y +CONFIG_ARCH_CNS3XXX=y +CONFIG_ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE=y +CONFIG_ARCH_HAS_SG_CHAIN=y +CONFIG_ARCH_HAS_TICK_BROADCAST=y +CONFIG_ARCH_HAVE_CUSTOM_GPIO_H=y +CONFIG_ARCH_HIBERNATION_POSSIBLE=y +CONFIG_ARCH_MIGHT_HAVE_PC_PARPORT=y +CONFIG_ARCH_MULTIPLATFORM=y +# CONFIG_ARCH_MULTI_CPU_AUTO is not set +CONFIG_ARCH_MULTI_V6=y +CONFIG_ARCH_MULTI_V6_V7=y +CONFIG_ARCH_NR_GPIO=0 +# CONFIG_ARCH_OMAP2 is not set +CONFIG_ARCH_REQUIRE_GPIOLIB=y +# CONFIG_ARCH_SELECT_MEMORY_MODEL is not set +# CONFIG_ARCH_SPARSEMEM_DEFAULT is not set +CONFIG_ARCH_SUPPORTS_ATOMIC_RMW=y +CONFIG_ARCH_SUPPORTS_UPROBES=y +CONFIG_ARCH_SUSPEND_POSSIBLE=y +CONFIG_ARCH_USE_BUILTIN_BSWAP=y +CONFIG_ARCH_USE_CMPXCHG_LOCKREF=y +CONFIG_ARCH_WANT_GENERAL_HUGETLB=y +CONFIG_ARCH_WANT_IPC_PARSE_VERSION=y +CONFIG_ARCH_WANT_OPTIONAL_GPIOLIB=y +# CONFIG_ARCH_WM8750 is not set +CONFIG_ARM=y +# CONFIG_ARM_CPU_SUSPEND is not set +CONFIG_ARM_GIC=y +CONFIG_ARM_HAS_SG_CHAIN=y +CONFIG_ARM_L1_CACHE_SHIFT=5 +CONFIG_ARM_PATCH_PHYS_VIRT=y +CONFIG_ARM_THUMB=y +CONFIG_ATA=y +CONFIG_ATAGS=y +# CONFIG_ATA_SFF is not set +CONFIG_ATA_VERBOSE_ERROR=y +# CONFIG_AUDIT_ARCH_COMPAT_GENERIC is not set +CONFIG_AUTO_ZRELADDR=y +CONFIG_BLK_DEV_SD=y +CONFIG_BROADCOM_PHY=y +CONFIG_CACHE_L2X0=y +CONFIG_CLKDEV_LOOKUP=y +CONFIG_CLKSRC_OF=y +CONFIG_CLONE_BACKWARDS=y +CONFIG_CNS3XXX_ETH=y +CONFIG_COMMON_CLK=y +# CONFIG_COMMON_CLK_PXA is not set +CONFIG_CPU_32v6=y +CONFIG_CPU_32v6K=y +CONFIG_CPU_ABRT_EV6=y +# CONFIG_CPU_BPREDICT_DISABLE is not set +CONFIG_CPU_CACHE_V6=y +CONFIG_CPU_CACHE_VIPT=y +CONFIG_CPU_COPY_V6=y +CONFIG_CPU_CP15=y +CONFIG_CPU_CP15_MMU=y +CONFIG_CPU_HAS_ASID=y +# CONFIG_CPU_ICACHE_DISABLE is not set +CONFIG_CPU_PABRT_V6=y +CONFIG_CPU_RMAP=y +CONFIG_CPU_TLB_V6=y +CONFIG_CPU_V6K=y +CONFIG_DCACHE_WORD_ACCESS=y +CONFIG_DEBUG_BUGVERBOSE=y +CONFIG_DEBUG_LL_INCLUDE="mach/debug-macro.S" +# CONFIG_DEBUG_UART_8250 is not set +# CONFIG_DEBUG_UART_BCM63XX is not set +# CONFIG_DEBUG_UART_PL01X is not set +# CONFIG_DEBUG_USER is not set +CONFIG_DMA_CACHE_FIQ_BROADCAST=y +CONFIG_DTC=y +CONFIG_EEPROM_AT24=y +CONFIG_FIQ=y +CONFIG_FRAME_POINTER=y +CONFIG_GENERIC_ALLOCATOR=y +CONFIG_GENERIC_BUG=y +CONFIG_GENERIC_CLOCKEVENTS=y +CONFIG_GENERIC_CLOCKEVENTS_BROADCAST=y +CONFIG_GENERIC_CLOCKEVENTS_BUILD=y +CONFIG_GENERIC_IDLE_POLL_SETUP=y +CONFIG_GENERIC_IO=y +CONFIG_GENERIC_IRQ_CHIP=y +CONFIG_GENERIC_IRQ_SHOW=y +CONFIG_GENERIC_PCI_IOMAP=y +CONFIG_GENERIC_SCHED_CLOCK=y +CONFIG_GENERIC_SMP_IDLE_THREAD=y +CONFIG_GENERIC_STRNCPY_FROM_USER=y +CONFIG_GENERIC_STRNLEN_USER=y +CONFIG_GLOB=y +CONFIG_GPIOLIB=y +CONFIG_GPIOLIB_IRQCHIP=y +CONFIG_GPIO_DEVRES=y +CONFIG_GPIO_PCA953X=y +CONFIG_GPIO_PCA953X_IRQ=y +CONFIG_GPIO_SYSFS=y +CONFIG_HANDLE_DOMAIN_IRQ=y +CONFIG_HARDIRQS_SW_RESEND=y +CONFIG_HAS_DMA=y +CONFIG_HAS_IOMEM=y +CONFIG_HAS_IOPORT_MAP=y +# CONFIG_HAVE_64BIT_ALIGNED_ACCESS is not set +CONFIG_HAVE_ARCH_AUDITSYSCALL=y +CONFIG_HAVE_ARCH_JUMP_LABEL=y +CONFIG_HAVE_ARCH_KGDB=y +CONFIG_HAVE_ARCH_PFN_VALID=y +CONFIG_HAVE_ARCH_SECCOMP_FILTER=y +CONFIG_HAVE_ARCH_TRACEHOOK=y +CONFIG_HAVE_ARM_SCU=y +# CONFIG_HAVE_BOOTMEM_INFO_NODE is not set +CONFIG_HAVE_BPF_JIT=y +CONFIG_HAVE_CC_STACKPROTECTOR=y +CONFIG_HAVE_CLK=y +CONFIG_HAVE_CLK_PREPARE=y +CONFIG_HAVE_CONTEXT_TRACKING=y +CONFIG_HAVE_C_RECORDMCOUNT=y +CONFIG_HAVE_DEBUG_KMEMLEAK=y +CONFIG_HAVE_DMA_API_DEBUG=y +CONFIG_HAVE_DMA_ATTRS=y +CONFIG_HAVE_DMA_CONTIGUOUS=y +CONFIG_HAVE_DYNAMIC_FTRACE=y +CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS=y +CONFIG_HAVE_FTRACE_MCOUNT_RECORD=y +CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y +CONFIG_HAVE_FUNCTION_TRACER=y +CONFIG_HAVE_GENERIC_DMA_COHERENT=y +CONFIG_HAVE_IDE=y +CONFIG_HAVE_IRQ_TIME_ACCOUNTING=y +CONFIG_HAVE_KERNEL_GZIP=y +CONFIG_HAVE_KERNEL_LZ4=y +CONFIG_HAVE_KERNEL_LZMA=y +CONFIG_HAVE_KERNEL_LZO=y +CONFIG_HAVE_KERNEL_XZ=y +CONFIG_HAVE_MEMBLOCK=y +CONFIG_HAVE_NET_DSA=y +CONFIG_HAVE_OPROFILE=y +CONFIG_HAVE_PERF_EVENTS=y +CONFIG_HAVE_PERF_REGS=y +CONFIG_HAVE_PERF_USER_STACK_DUMP=y +CONFIG_HAVE_PROC_CPU=y +CONFIG_HAVE_REGS_AND_STACK_ACCESS_API=y +CONFIG_HAVE_SMP=y +CONFIG_HAVE_SYSCALL_TRACEPOINTS=y +CONFIG_HAVE_UID16=y +CONFIG_HAVE_VIRT_CPU_ACCOUNTING_GEN=y +CONFIG_HWMON=y +CONFIG_HZ_FIXED=0 +CONFIG_HZ_PERIODIC=y +CONFIG_I2C=y +CONFIG_I2C_BOARDINFO=y +CONFIG_I2C_CHARDEV=y +CONFIG_I2C_CNS3XXX=y +CONFIG_INITRAMFS_SOURCE="" +# CONFIG_INTEL_SOC_PMIC is not set +CONFIG_IOMMU_HELPER=y +CONFIG_IRQCHIP=y +CONFIG_IRQ_DOMAIN=y +CONFIG_IRQ_FORCED_THREADING=y +CONFIG_IRQ_WORK=y +CONFIG_LEDS_GPIO=y +# CONFIG_LEDS_TRIGGER_NETDEV is not set +CONFIG_LIBFDT=y +# CONFIG_MACH_CNS3420VB is not set +CONFIG_MACH_GW2388=y +CONFIG_MDIO_BOARDINFO=y +# CONFIG_MFD_AXP20X is not set +CONFIG_MIGHT_HAVE_CACHE_L2X0=y +CONFIG_MIGHT_HAVE_PCI=y +CONFIG_MMC=y +CONFIG_MMC_BLOCK=y +CONFIG_MMC_SDHCI=y +CONFIG_MMC_SDHCI_CNS3XXX=y +# CONFIG_MMC_SDHCI_PCI is not set +CONFIG_MMC_SDHCI_PLTFM=y +# CONFIG_MMC_TIFM_SD is not set +CONFIG_MODULES_USE_ELF_REL=y +# CONFIG_MTD_OF_PARTS is not set +CONFIG_MTD_PHYSMAP=y +# CONFIG_MTD_PHYSMAP_OF is not set +CONFIG_MULTI_IRQ_HANDLER=y +CONFIG_MUTEX_SPIN_ON_OWNER=y +CONFIG_NEED_DMA_MAP_STATE=y +CONFIG_NET_FLOW_LIMIT=y +CONFIG_NET_VENDOR_CAVIUM=y +CONFIG_NLS=y +CONFIG_NO_BOOTMEM=y +CONFIG_NR_CPUS=2 +CONFIG_NTP_PPS=y +CONFIG_OF=y +CONFIG_OF_ADDRESS=y +CONFIG_OF_ADDRESS_PCI=y +CONFIG_OF_EARLY_FLATTREE=y +CONFIG_OF_FLATTREE=y +CONFIG_OF_GPIO=y +CONFIG_OF_IRQ=y +CONFIG_OF_MDIO=y +CONFIG_OF_MTD=y +CONFIG_OF_NET=y +CONFIG_OF_PCI=y +CONFIG_OF_PCI_IRQ=y +CONFIG_OF_RESERVED_MEM=y +CONFIG_OLD_SIGACTION=y +CONFIG_OLD_SIGSUSPEND3=y +CONFIG_OUTER_CACHE=y +CONFIG_OUTER_CACHE_SYNC=y +CONFIG_PAGEFLAGS_EXTENDED=y +CONFIG_PAGE_OFFSET=0xC0000000 +CONFIG_PCI=y +CONFIG_PCI_DISABLE_COMMON_QUIRKS=y +CONFIG_PCI_DOMAINS=y +CONFIG_PERF_USE_VMALLOC=y +CONFIG_PHYLIB=y +# CONFIG_PHY_SAMSUNG_USB2 is not set +CONFIG_PL310_ERRATA_588369=y +CONFIG_PL310_ERRATA_727915=y +CONFIG_PL310_ERRATA_753970=y +CONFIG_PL310_ERRATA_769419=y +CONFIG_PPS=y +CONFIG_PPS_CLIENT_GPIO=y +# CONFIG_PREEMPT_RCU is not set +# CONFIG_PROC_STRIPPED is not set +CONFIG_RAID_ATTRS=y +CONFIG_RCU_STALL_COMMON=y +CONFIG_RFS_ACCEL=y +CONFIG_RPS=y +CONFIG_RTC_CLASS=y +CONFIG_RTC_DRV_DS1672=y +CONFIG_RWSEM_SPIN_ON_OWNER=y +CONFIG_RWSEM_XCHGADD_ALGORITHM=y +CONFIG_SATA_AHCI=y +CONFIG_SATA_AHCI_PLATFORM=y +CONFIG_SCHED_HRTICK=y +CONFIG_SCSI=y +CONFIG_SENSORS_AD7418=y +CONFIG_SENSORS_GSC=y +CONFIG_SERIAL_8250_NR_UARTS=3 +CONFIG_SERIAL_8250_RUNTIME_UARTS=3 +CONFIG_SERIAL_EARLYCON=y +CONFIG_SMP=y +CONFIG_SMP_ON_UP=y +CONFIG_SPARSE_IRQ=y +CONFIG_SPI=y +CONFIG_SPI_BITBANG=y +CONFIG_SPI_CNS3XXX=y +CONFIG_SPI_MASTER=y +# CONFIG_STAGING is not set +CONFIG_STOP_MACHINE=y +CONFIG_SWIOTLB=y +CONFIG_SYS_SUPPORTS_APM_EMULATION=y +CONFIG_TICK_CPU_ACCOUNTING=y +CONFIG_TREE_RCU=y +CONFIG_UID16=y +CONFIG_UNCOMPRESS_INCLUDE="debug/uncompress.h" +CONFIG_USB=y +CONFIG_USB_ANNOUNCE_NEW_DEVICES=y +CONFIG_USB_CNS3XXX_EHCI=y +CONFIG_USB_CNS3XXX_OHCI=y +CONFIG_USB_COMMON=y +CONFIG_USB_DWC2=y +# CONFIG_USB_DWC2_DEBUG is not set +CONFIG_USB_DWC2_HOST=y +# CONFIG_USB_DWC2_PCI is not set +# CONFIG_USB_DWC2_PERIPHERAL is not set +CONFIG_USB_DWC2_PLATFORM=y +# CONFIG_USB_DWC2_TRACK_MISSED_SOFS is not set +CONFIG_USB_EHCI_HCD=y +CONFIG_USB_EHCI_HCD_PLATFORM=y +CONFIG_USB_EHCI_PCI=y +# CONFIG_USB_ETH is not set +CONFIG_USB_GADGET=y +# CONFIG_USB_GADGET_XILINX is not set +CONFIG_USB_OHCI_HCD=y +CONFIG_USB_OHCI_HCD_PLATFORM=y +CONFIG_USB_SUPPORT=y +# CONFIG_USB_UHCI_HCD is not set +CONFIG_USE_OF=y +CONFIG_VECTORS_BASE=0xffff0000 +CONFIG_VFP=y +CONFIG_WATCHDOG_NOWAYOUT=y +CONFIG_XPS=y +CONFIG_XZ_DEC_ARM=y +CONFIG_XZ_DEC_BCJ=y +CONFIG_ZBOOT_ROM_BSS=0 +CONFIG_ZBOOT_ROM_TEXT=0 +CONFIG_ZONE_DMA_FLAG=0 diff --git a/target/linux/cns3xxx/files/arch/arm/mach-cns3xxx/cns3xxx_fiq.S b/target/linux/cns3xxx/files/arch/arm/mach-cns3xxx/cns3xxx_fiq.S new file mode 100644 index 0000000..b1155ef --- /dev/null +++ b/target/linux/cns3xxx/files/arch/arm/mach-cns3xxx/cns3xxx_fiq.S @@ -0,0 +1,87 @@ +/* + * Copyright (C) 2012 Gateworks Corporation + * Chris Lang <clang@gateworks.com> + * + * 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/linkage.h> +#include <asm/assembler.h> +#include <asm/asm-offsets.h> + +#define D_CACHE_LINE_SIZE 32 + + .text + +/* + * R8 - DMA Start Address + * R9 - DMA Length + * R10 - DMA Direction + * R11 - DMA type + * R12 - fiq_buffer Address +*/ + + .global cns3xxx_fiq_end +ENTRY(cns3xxx_fiq_start) + str r8, [r13] + + ldmia r12, {r8, r9, r10} + and r11, r10, #0x3000000 + and r10, r10, #0xff + + teq r11, #0x1000000 + beq cns3xxx_dma_map_area + teq r11, #0x2000000 + beq cns3xxx_dma_unmap_area + /* fall through */ +cns3xxx_dma_flush_range: + bic r8, r8, #D_CACHE_LINE_SIZE - 1 +1: + mcr p15, 0, r8, c7, c14, 1 @ clean & invalidate D line + add r8, r8, #D_CACHE_LINE_SIZE + cmp r8, r9 + blo 1b + /* fall through */ +cns3xxx_fiq_exit: + mov r8, #0 + str r8, [r12, #8] + mcr p15, 0, r8, c7, c10, 4 @ drain write buffer + subs pc, lr, #4 + +cns3xxx_dma_map_area: + add r9, r9, r8 + teq r10, #DMA_FROM_DEVICE + beq cns3xxx_dma_inv_range + teq r10, #DMA_TO_DEVICE + bne cns3xxx_dma_flush_range + /* fall through */ +cns3xxx_dma_clean_range: + bic r8, r8, #D_CACHE_LINE_SIZE - 1 +1: + mcr p15, 0, r8, c7, c10, 1 @ clean D line + add r8, r8, #D_CACHE_LINE_SIZE + cmp r8, r9 + blo 1b + b cns3xxx_fiq_exit + +cns3xxx_dma_unmap_area: + add r9, r9, r8 + teq r10, #DMA_TO_DEVICE + beq cns3xxx_fiq_exit + /* fall through */ +cns3xxx_dma_inv_range: + tst r8, #D_CACHE_LINE_SIZE - 1 + bic r8, r8, #D_CACHE_LINE_SIZE - 1 + mcrne p15, 0, r8, c7, c10, 1 @ clean D line + tst r9, #D_CACHE_LINE_SIZE - 1 + bic r9, r9, #D_CACHE_LINE_SIZE - 1 + mcrne p15, 0, r9, c7, c14, 1 @ clean & invalidate D line +1: + mcr p15, 0, r8, c7, c6, 1 @ invalidate D line + add r8, r8, #D_CACHE_LINE_SIZE + cmp r8, r9 + blo 1b + b cns3xxx_fiq_exit + +cns3xxx_fiq_end: diff --git a/target/linux/cns3xxx/files/arch/arm/mach-cns3xxx/gpio.c b/target/linux/cns3xxx/files/arch/arm/mach-cns3xxx/gpio.c new file mode 100644 index 0000000..b6e4061 --- /dev/null +++ b/target/linux/cns3xxx/files/arch/arm/mach-cns3xxx/gpio.c @@ -0,0 +1,292 @@ +/* + * Copyright 2012 Gateworks Corporation + * Chris Lang <clang@gateworks.com> + * Tim Harvey <tharvey@gateworks.com> + * + * This file 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/module.h> +#include <linux/init.h> +#include <linux/interrupt.h> +#include <linux/irqchip/chained_irq.h> +#include <linux/io.h> +#include <linux/gpio.h> +#include <linux/irq.h> +#include <linux/irqdomain.h> + +#include <asm/mach/irq.h> + +/* + * Registers + */ +#define GPIO_INPUT 0x04 +#define GPIO_DIR 0x08 +#define GPIO_SET 0x10 +#define GPIO_CLEAR 0x14 +#define GPIO_INTERRUPT_ENABLE 0x20 +#define GPIO_INTERRUPT_RAW_STATUS 0x24 +#define GPIO_INTERRUPT_MASKED_STATUS 0x28 +#define GPIO_INTERRUPT_MASK 0x2C +#define GPIO_INTERRUPT_CLEAR 0x30 +#define GPIO_INTERRUPT_TRIGGER_METHOD 0x34 +#define GPIO_INTERRUPT_TRIGGER_BOTH_EDGES 0x38 +#define GPIO_INTERRUPT_TRIGGER_TYPE 0x3C + +#define GPIO_INTERRUPT_TRIGGER_METHOD_EDGE 0 +#define GPIO_INTERRUPT_TRIGGER_METHOD_LEVEL 1 +#define GPIO_INTERRUPT_TRIGGER_EDGE_SINGLE 0 +#define GPIO_INTERRUPT_TRIGGER_EDGE_BOTH 1 +#define GPIO_INTERRUPT_TRIGGER_TYPE_RISING 0 +#define GPIO_INTERRUPT_TRIGGER_TYPE_FALLING 1 +#define GPIO_INTERRUPT_TRIGGER_TYPE_HIGH 0 +#define GPIO_INTERRUPT_TRIGGER_TYPE_LOW 1 + +struct cns3xxx_gpio_chip { + struct gpio_chip chip; + struct irq_domain *domain; + spinlock_t lock; + void __iomem *base; +}; + +static struct cns3xxx_gpio_chip cns3xxx_gpio_chips[2]; +static int cns3xxx_gpio_chip_count; + +static inline void +__set_direction(struct cns3xxx_gpio_chip *cchip, unsigned pin, int input) +{ + u32 reg; + + reg = __raw_readl(cchip->base + GPIO_DIR); + if (input) + reg &= ~(1 << pin); + else + reg |= (1 << pin); + __raw_writel(reg, cchip->base + GPIO_DIR); +} + +/* + * GENERIC_GPIO primatives + */ +static int cns3xxx_gpio_direction_input(struct gpio_chip *chip, unsigned pin) +{ + struct cns3xxx_gpio_chip *cchip = + container_of(chip, struct cns3xxx_gpio_chip, chip); + unsigned long flags; + + spin_lock_irqsave(&cchip->lock, flags); + __set_direction(cchip, pin, 1); + spin_unlock_irqrestore(&cchip->lock, flags); + + return 0; +} + +static int cns3xxx_gpio_get(struct gpio_chip *chip, unsigned pin) +{ + struct cns3xxx_gpio_chip *cchip = + container_of(chip, struct cns3xxx_gpio_chip, chip); + int val; + + val = ((__raw_readl(cchip->base + GPIO_INPUT) >> pin) & 0x1); + + return val; +} + +static int cns3xxx_gpio_direction_output(struct gpio_chip *chip, unsigned pin, int level) +{ + struct cns3xxx_gpio_chip *cchip = + container_of(chip, struct cns3xxx_gpio_chip, chip); + unsigned long flags; + + spin_lock_irqsave(&cchip->lock, flags); + if (level) + __raw_writel(1 << pin, cchip->base + GPIO_SET); + else + __raw_writel(1 << pin, cchip->base + GPIO_CLEAR); + __set_direction(cchip, pin, 0); + spin_unlock_irqrestore(&cchip->lock, flags); + + return 0; +} + +static void cns3xxx_gpio_set(struct gpio_chip *chip, unsigned pin, + int level) +{ + struct cns3xxx_gpio_chip *cchip = + container_of(chip, struct cns3xxx_gpio_chip, chip); + + if (level) + __raw_writel(1 << pin, cchip->base + GPIO_SET); + else + __raw_writel(1 << pin, cchip->base + GPIO_CLEAR); +} + +static int cns3xxx_gpio_to_irq(struct gpio_chip *chip, unsigned pin) +{ + struct cns3xxx_gpio_chip *cchip = + container_of(chip, struct cns3xxx_gpio_chip, chip); + + return irq_find_mapping(cchip->domain, pin); +} + + +/* + * IRQ support + */ + +/* one interrupt per GPIO controller (GPIOA/GPIOB) + * this is called in task context, with IRQs enabled + */ +static void cns3xxx_gpio_irq_handler(unsigned int irq, struct irq_desc *desc) +{ + struct cns3xxx_gpio_chip *cchip = irq_get_handler_data(irq); + struct irq_chip *chip = irq_get_chip(irq); + u16 i; + u32 reg; + + chained_irq_enter(chip, desc); /* mask and ack the base interrupt */ + + /* see which pin(s) triggered the interrupt */ + reg = __raw_readl(cchip->base + GPIO_INTERRUPT_RAW_STATUS); + for (i = 0; i < 32; i++) { + if (reg & (1 << i)) { + /* let the generic IRQ layer handle an interrupt */ + generic_handle_irq(irq_find_mapping(cchip->domain, i)); + } + } + + chained_irq_exit(chip, desc); /* unmask the base interrupt */ +} + +static int cns3xxx_gpio_irq_set_type(struct irq_data *d, u32 irqtype) +{ + struct irq_chip_generic *gc = irq_data_get_irq_chip_data(d); + struct cns3xxx_gpio_chip *cchip = gc->private; + u32 gpio = d->hwirq; + unsigned long flags; + u32 method, edges, type; + + spin_lock_irqsave(&cchip->lock, flags); + method = __raw_readl(cchip->base + GPIO_INTERRUPT_TRIGGER_METHOD); + edges = __raw_readl(cchip->base + GPIO_INTERRUPT_TRIGGER_BOTH_EDGES); + type = __raw_readl(cchip->base + GPIO_INTERRUPT_TRIGGER_TYPE); + method &= ~(1 << gpio); + edges &= ~(1 << gpio); + type &= ~(1 << gpio); + + switch(irqtype) { + case IRQ_TYPE_EDGE_RISING: + method |= (GPIO_INTERRUPT_TRIGGER_METHOD_EDGE << gpio); + edges |= (GPIO_INTERRUPT_TRIGGER_EDGE_SINGLE << gpio); + type |= (GPIO_INTERRUPT_TRIGGER_TYPE_RISING << gpio); + break; + case IRQ_TYPE_EDGE_FALLING: + method |= (GPIO_INTERRUPT_TRIGGER_METHOD_EDGE << gpio); + edges |= (GPIO_INTERRUPT_TRIGGER_EDGE_SINGLE << gpio); + type |= (GPIO_INTERRUPT_TRIGGER_TYPE_FALLING << gpio); + break; + case IRQ_TYPE_EDGE_BOTH: + method |= (GPIO_INTERRUPT_TRIGGER_METHOD_EDGE << gpio); + edges |= (GPIO_INTERRUPT_TRIGGER_EDGE_BOTH << gpio); + break; + case IRQ_TYPE_LEVEL_LOW: + method |= (GPIO_INTERRUPT_TRIGGER_METHOD_LEVEL << gpio); + type |= (GPIO_INTERRUPT_TRIGGER_TYPE_LOW << gpio); + break; + case IRQ_TYPE_LEVEL_HIGH: + method |= (GPIO_INTERRUPT_TRIGGER_METHOD_LEVEL << gpio); + type |= (GPIO_INTERRUPT_TRIGGER_TYPE_HIGH << gpio); + break; + default: + printk(KERN_WARNING "No irq type\n"); + spin_unlock_irqrestore(&cchip->lock, flags); + return -EINVAL; + } + + __raw_writel(method, cchip->base + GPIO_INTERRUPT_TRIGGER_METHOD); + __raw_writel(edges, cchip->base + GPIO_INTERRUPT_TRIGGER_BOTH_EDGES); + __raw_writel(type, cchip->base + GPIO_INTERRUPT_TRIGGER_TYPE); + spin_unlock_irqrestore(&cchip->lock, flags); + + if (type & (IRQ_TYPE_LEVEL_LOW | IRQ_TYPE_LEVEL_HIGH)) + __irq_set_handler_locked(d->irq, handle_level_irq); + else if (type & (IRQ_TYPE_EDGE_FALLING | IRQ_TYPE_EDGE_RISING)) + __irq_set_handler_locked(d->irq, handle_edge_irq); + + return 0; +} + +void __init cns3xxx_gpio_init(int gpio_base, int ngpio, + u32 base, int irq, int secondary_irq_base) +{ + struct cns3xxx_gpio_chip *cchip; + struct irq_chip_generic *gc; + struct irq_chip_type *ct; + char gc_label[16]; + int irq_base; + + if (cns3xxx_gpio_chip_count == ARRAY_SIZE(cns3xxx_gpio_chips)) + return; + + snprintf(gc_label, sizeof(gc_label), "cns3xxx_gpio%d", + cns3xxx_gpio_chip_count); + + cchip = cns3xxx_gpio_chips + cns3xxx_gpio_chip_count; + cchip->chip.label = kstrdup(gc_label, GFP_KERNEL); + cchip->chip.direction_input = cns3xxx_gpio_direction_input; + cchip->chip.get = cns3xxx_gpio_get; + cchip->chip.direction_output = cns3xxx_gpio_direction_output; + cchip->chip.set = cns3xxx_gpio_set; + cchip->chip.to_irq = cns3xxx_gpio_to_irq; + cchip->chip.base = gpio_base; + cchip->chip.ngpio = ngpio; + cchip->chip.can_sleep = 0; + spin_lock_init(&cchip->lock); + cchip->base = (void __iomem *)base; + + BUG_ON(gpiochip_add(&cchip->chip) < 0); + cns3xxx_gpio_chip_count++; + + /* clear GPIO interrupts */ + __raw_writel(0xffff, cchip->base + GPIO_INTERRUPT_CLEAR); + + irq_base = irq_alloc_descs(-1, secondary_irq_base, ngpio, + numa_node_id()); + if (irq_base < 0) + goto out_irqdesc_free; + + cchip->domain = irq_domain_add_legacy(NULL, ngpio, irq_base, 0, + &irq_domain_simple_ops, NULL); + if (!cchip->domain) + goto out_irqdesc_free; + + /* + * IRQ chip init + */ + gc = irq_alloc_generic_chip("cns3xxx_gpio_irq", 1, irq_base, + cchip->base, handle_edge_irq); + + gc->private = cchip; + + ct = gc->chip_types; + ct->type = IRQ_TYPE_EDGE_FALLING; + ct->regs.ack = GPIO_INTERRUPT_CLEAR; + ct->regs.enable = GPIO_INTERRUPT_ENABLE; + ct->chip.irq_ack = irq_gc_ack_set_bit; + ct->chip.irq_enable = irq_gc_unmask_enable_reg; + ct->chip.irq_disable = irq_gc_mask_disable_reg; + ct->chip.irq_set_type = cns3xxx_gpio_irq_set_type; + ct->handler = handle_edge_irq; + + irq_setup_generic_chip(gc, IRQ_MSK(ngpio), IRQ_GC_INIT_MASK_CACHE, + IRQ_NOREQUEST, 0); + irq_set_chained_handler(irq, cns3xxx_gpio_irq_handler); + irq_set_handler_data(irq, cchip); + + return; + +out_irqdesc_free: + irq_free_descs(irq_base, ngpio); +} diff --git a/target/linux/cns3xxx/files/arch/arm/mach-cns3xxx/headsmp.S b/target/linux/cns3xxx/files/arch/arm/mach-cns3xxx/headsmp.S new file mode 100644 index 0000000..3b46bdc --- /dev/null +++ b/target/linux/cns3xxx/files/arch/arm/mach-cns3xxx/headsmp.S @@ -0,0 +1,42 @@ +/* + * linux/arch/arm/mach-cns3xxx/headsmp.S + * + * Cloned from linux/arch/arm/plat-versatile/headsmp.S + * + * Copyright (c) 2003 ARM Limited + * All Rights Reserved + * + * 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/linkage.h> +#include <linux/init.h> + + __CPUINIT + +/* + * CNS3XXX specific entry point for secondary CPUs. This provides + * a "holding pen" into which all secondary cores are held until we're + * ready for them to initialise. + */ +ENTRY(cns3xxx_secondary_startup) + mrc p15, 0, r0, c0, c0, 5 + and r0, r0, #15 + adr r4, 1f + ldmia r4, {r5, r6} + sub r4, r4, r5 + add r6, r6, r4 +pen: ldr r7, [r6] + cmp r7, r0 + bne pen + + /* + * we've been released from the holding pen: secondary_stack + * should now contain the SVC stack for this core + */ + b secondary_startup + + .align +1: .long . + .long pen_release diff --git a/target/linux/cns3xxx/files/arch/arm/mach-cns3xxx/hotplug.c b/target/linux/cns3xxx/files/arch/arm/mach-cns3xxx/hotplug.c new file mode 100644 index 0000000..be0d499 --- /dev/null +++ b/target/linux/cns3xxx/files/arch/arm/mach-cns3xxx/hotplug.c @@ -0,0 +1,130 @@ +/* linux arch/arm/mach-cns3xxx/hotplug.c + * + * Cloned from linux/arch/arm/mach-realview/hotplug.c + * + * Copyright (C) 2002 ARM Ltd. + * All Rights Reserved + * + * 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/kernel.h> +#include <linux/errno.h> +#include <linux/smp.h> + +#include <asm/cacheflush.h> + +extern volatile int pen_release; + +static inline void cpu_enter_lowpower(void) +{ + unsigned int v; + + flush_cache_all(); + asm volatile( + " mcr p15, 0, %1, c7, c5, 0\n" + " mcr p15, 0, %1, c7, c10, 4\n" + /* + * Turn off coherency + */ + " mrc p15, 0, %0, c1, c0, 1\n" + " bic %0, %0, %3\n" + " mcr p15, 0, %0, c1, c0, 1\n" + " mrc p15, 0, %0, c1, c0, 0\n" + " bic %0, %0, %2\n" + " mcr p15, 0, %0, c1, c0, 0\n" + : "=&r" (v) + : "r" (0), "Ir" (CR_C), "Ir" (0x40) + : "cc"); +} + +static inline void cpu_leave_lowpower(void) +{ + unsigned int v; + + asm volatile( + "mrc p15, 0, %0, c1, c0, 0\n" + " orr %0, %0, %1\n" + " mcr p15, 0, %0, c1, c0, 0\n" + " mrc p15, 0, %0, c1, c0, 1\n" + " orr %0, %0, %2\n" + " mcr p15, 0, %0, c1, c0, 1\n" + : "=&r" (v) + : "Ir" (CR_C), "Ir" (0x40) + : "cc"); +} + +static inline void platform_do_lowpower(unsigned int cpu, int *spurious) +{ + /* + * there is no power-control hardware on this platform, so all + * we can do is put the core into WFI; this is safe as the calling + * code will have already disabled interrupts + */ + for (;;) { + /* + * here's the WFI + */ + asm(".word 0xe320f003\n" + : + : + : "memory", "cc"); + + if (pen_release == cpu) { + /* + * OK, proper wakeup, we're done + */ + break; + } + + /* + * Getting here, means that we have come out of WFI without + * having been woken up - this shouldn't happen + * + * Just note it happening - when we're woken, we can report + * its occurrence. + */ + (*spurious)++; + } +} + +int platform_cpu_kill(unsigned int cpu) +{ + return 1; +} + +/* + * platform-specific code to shutdown a CPU + * + * Called with IRQs disabled + */ +void platform_cpu_die(unsigned int cpu) +{ + int spurious = 0; + + /* + * we're ready for shutdown now, so do it + */ + cpu_enter_lowpower(); + platform_do_lowpower(cpu, &spurious); + + /* + * bring this CPU back into the world of cache + * coherency, and then restore interrupts + */ + cpu_leave_lowpower(); + + if (spurious) + pr_warn("CPU%u: %u spurious wakeup calls\n", cpu, spurious); +} + +int platform_cpu_disable(unsigned int cpu) +{ + /* + * we don't allow CPU 0 to be shutdown (it is still too special + * e.g. clock tick interrupts) + */ + return cpu == 0 ? -EPERM : 0; +} diff --git a/target/linux/cns3xxx/files/arch/arm/mach-cns3xxx/include/mach/gpio.h b/target/linux/cns3xxx/files/arch/arm/mach-cns3xxx/include/mach/gpio.h new file mode 100644 index 0000000..8c66748 --- /dev/null +++ b/target/linux/cns3xxx/files/arch/arm/mach-cns3xxx/include/mach/gpio.h @@ -0,0 +1,17 @@ +/* + * arch/arm/mach-cns3xxx/include/mach/gpio.h + * + * 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. + * + */ +#ifndef __ASM_ARCH_CNS3XXX_GPIO_H +#define __ASM_ARCH_CNS3XXX_GPIO_H + +#include <linux/kernel.h> + +extern void __init cns3xxx_gpio_init(int gpio_base, int ngpio, + u32 base, int irq, int secondary_irq_base); + +#endif diff --git a/target/linux/cns3xxx/files/arch/arm/mach-cns3xxx/include/mach/smp.h b/target/linux/cns3xxx/files/arch/arm/mach-cns3xxx/include/mach/smp.h new file mode 100644 index 0000000..e5bc568 --- /dev/null +++ b/target/linux/cns3xxx/files/arch/arm/mach-cns3xxx/include/mach/smp.h @@ -0,0 +1,8 @@ +#ifndef __MACH_SMP_H +#define __MACH_SMP_H + +extern void smp_dma_map_area(const void *, size_t, int); +extern void smp_dma_unmap_area(const void *, size_t, int); +extern void smp_dma_flush_range(const void *, const void *); + +#endif diff --git a/target/linux/cns3xxx/files/arch/arm/mach-cns3xxx/laguna.c b/target/linux/cns3xxx/files/arch/arm/mach-cns3xxx/laguna.c new file mode 100644 index 0000000..99c4108 --- /dev/null +++ b/target/linux/cns3xxx/files/arch/arm/mach-cns3xxx/laguna.c @@ -0,0 +1,1079 @@ +/* + * Gateworks Corporation Laguna Platform + * + * Copyright 2000 Deep Blue Solutions Ltd + * Copyright 2008 ARM Limited + * Copyright 2008 Cavium Networks + * Scott Shu + * Copyright 2010 MontaVista Software, LLC. + * Anton Vorontsov <avorontsov@mvista.com> + * Copyright 2011 Gateworks Corporation + * Chris Lang <clang@gateworks.com> + * Copyright 2012-2013 Gateworks Corporation + * Tim Harvey <tharvey@gateworks.com> + * + * This file 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/kernel.h> +#include <linux/compiler.h> +#include <linux/io.h> +#include <linux/gpio.h> +#include <linux/dma-mapping.h> +#include <linux/serial_core.h> +#include <linux/serial_8250.h> +#include <linux/platform_device.h> +#include <linux/mtd/mtd.h> +#include <linux/mtd/physmap.h> +#include <linux/mtd/partitions.h> +#include <linux/leds.h> +#include <linux/i2c.h> +#include <linux/platform_data/at24.h> +#include <linux/platform_data/pca953x.h> +#include <linux/spi/spi.h> +#include <linux/spi/flash.h> +#include <linux/if_ether.h> +#include <linux/pps-gpio.h> +#include <linux/usb/ehci_pdriver.h> +#include <linux/usb/ohci_pdriver.h> +#include <linux/clk-provider.h> +#include <linux/clkdev.h> +#include <linux/platform_data/cns3xxx.h> +#include <asm/setup.h> +#include <asm/mach-types.h> +#include <asm/mach/arch.h> +#include <asm/mach/map.h> +#include <asm/mach/time.h> +#include <mach/gpio.h> +#include "core.h" +#include "devices.h" +#include "cns3xxx.h" +#include "pm.h" + +#define ARRAY_AND_SIZE(x) (x), ARRAY_SIZE(x) + +// Config 1 Bitmap +#define ETH0_LOAD BIT(0) +#define ETH1_LOAD BIT(1) +#define ETH2_LOAD BIT(2) +#define SATA0_LOAD BIT(3) +#define SATA1_LOAD BIT(4) +#define PCM_LOAD BIT(5) +#define I2S_LOAD BIT(6) +#define SPI0_LOAD BIT(7) +#define SPI1_LOAD BIT(8) +#define PCIE0_LOAD BIT(9) +#define PCIE1_LOAD BIT(10) +#define USB0_LOAD BIT(11) +#define USB1_LOAD BIT(12) +#define USB1_ROUTE BIT(13) +#define SD_LOAD BIT(14) +#define UART0_LOAD BIT(15) +#define UART1_LOAD BIT(16) +#define UART2_LOAD BIT(17) +#define MPCI0_LOAD BIT(18) +#define MPCI1_LOAD BIT(19) +#define MPCI2_LOAD BIT(20) +#define MPCI3_LOAD BIT(21) +#define FP_BUT_LOAD BIT(22) +#define FP_BUT_HEADER_LOAD BIT(23) +#define FP_LED_LOAD BIT(24) +#define FP_LED_HEADER_LOAD BIT(25) +#define FP_TAMPER_LOAD BIT(26) +#define HEADER_33V_LOAD BIT(27) +#define SATA_POWER_LOAD BIT(28) +#define FP_POWER_LOAD BIT(29) +#define GPIO_HEADER_LOAD BIT(30) +#define GSP_BAT_LOAD BIT(31) + +// Config 2 Bitmap +#define FAN_LOAD BIT(0) +#define SPI_FLASH_LOAD BIT(1) +#define NOR_FLASH_LOAD BIT(2) +#define GPS_LOAD BIT(3) +#define SUPPLY_5V_LOAD BIT(6) +#define SUPPLY_33V_LOAD BIT(7) + +struct laguna_board_info { + char model[16]; + u32 config_bitmap; + u32 config2_bitmap; + u8 nor_flash_size; + u8 spi_flash_size; +}; + +static struct laguna_board_info laguna_info __initdata; + +/* + * NOR Flash + */ +static struct mtd_partition laguna_nor_partitions[] = { + { + .name = "uboot", + .size = SZ_256K, + .offset = 0, + .mask_flags = MTD_WRITEABLE, + }, { + .name = "params", + .size = SZ_128K, + .offset = SZ_256K, + }, { + .name = "kernel", + .size = SZ_2M, + .offset = SZ_256K + SZ_128K, + }, { + .name = "rootfs", + .size = SZ_16M - SZ_256K - SZ_128K - SZ_2M, + .offset = SZ_256K + SZ_128K + SZ_2M, + }, +}; + +static struct physmap_flash_data laguna_nor_pdata = { + .width = 2, + .parts = laguna_nor_partitions, + .nr_parts = ARRAY_SIZE(laguna_nor_partitions), +}; + +static struct resource laguna_nor_res = { + .start = CNS3XXX_FLASH_BASE, + .end = CNS3XXX_FLASH_BASE + SZ_128M - 1, + .flags = IORESOURCE_MEM | IORESOURCE_MEM_32BIT, +}; + +static struct platform_device laguna_nor_pdev = { + .name = "physmap-flash", + .id = 0, + .resource = &laguna_nor_res, + .num_resources = 1, + .dev = { + .platform_data = &laguna_nor_pdata, + }, +}; + +/* + * SPI + */ +static struct mtd_partition laguna_spi_partitions[] = { + { + .name = "uboot", + .size = SZ_256K, + .offset = 0, + .mask_flags = MTD_WRITEABLE, + }, { + .name = "params", + .size = SZ_256K, + .offset = SZ_256K, + }, { + .name = "kernel", + .size = SZ_1M + SZ_512K, + .offset = SZ_512K, + }, { + .name = "rootfs", + .size = SZ_16M - SZ_2M, + .offset = SZ_2M, + }, +}; + +static struct flash_platform_data laguna_spi_pdata = { + .parts = laguna_spi_partitions, + .nr_parts = ARRAY_SIZE(laguna_spi_partitions), +}; + +static struct spi_board_info __initdata laguna_spi_devices[] = { + { + .modalias = "m25p80", + .platform_data = &laguna_spi_pdata, + .max_speed_hz = 50000000, + .bus_num = 1, + .chip_select = 0, + }, +}; + +static struct resource laguna_spi_resource = { + .start = CNS3XXX_SSP_BASE + 0x40, + .end = CNS3XXX_SSP_BASE + 0x6f, + .flags = IORESOURCE_MEM, +}; + +static struct platform_device laguna_spi_controller = { + .name = "cns3xxx_spi", + .resource = &laguna_spi_resource, + .num_resources = 1, +}; + +/* + * LED's + */ +static struct gpio_led laguna_gpio_leds[] = { + { + .name = "user1", /* Green Led */ + .gpio = 115, + .active_low = 1, + },{ + .name = "user2", /* Red Led */ + .gpio = 114, + .active_low = 1, + },{ + .name = "pwr1", /* Green Led */ + .gpio = 116, + .active_low = 1, + },{ + .name = "pwr2", /* Yellow Led */ + .gpio = 117, + .active_low = 1, + },{ + .name = "txd1", /* Green Led */ + .gpio = 118, + .active_low = 1, + },{ + .name = "txd2", /* Yellow Led */ + .gpio = 119, + .active_low = 1, + },{ + .name = "rxd1", /* Green Led */ + .gpio = 120, + .active_low = 1, + },{ + .name = "rxd2", /* Yellow Led */ + .gpio = 121, + .active_low = 1, + },{ + .name = "ser1", /* Green Led */ + .gpio = 122, + .active_low = 1, + },{ + .name = "ser2", /* Yellow Led */ + .gpio = 123, + .active_low = 1, + },{ + .name = "enet1", /* Green Led */ + .gpio = 124, + .active_low = 1, + },{ + .name = "enet2", /* Yellow Led */ + .gpio = 125, + .active_low = 1, + },{ + .name = "sig1_1", /* Green Led */ + .gpio = 126, + .active_low = 1, + },{ + .name = "sig1_2", /* Yellow Led */ + .gpio = 127, + .active_low = 1, + },{ + .name = "sig2_1", /* Green Led */ + .gpio = 128, + .active_low = 1, + },{ + .name = "sig2_2", /* Yellow Led */ + .gpio = 129, + .active_low = 1, + },{ + .name = "sig3_1", /* Green Led */ + .gpio = 130, + .active_low = 1, + },{ + .name = "sig3_2", /* Yellow Led */ + .gpio = 131, + .active_low = 1, + },{ + .name = "net1", /*Green Led */ + .gpio = 109, + .active_low = 1, + },{ + .name = "net2", /* Red Led */ + .gpio = 110, + .active_low = 1, + },{ + .name = "mod1", /* Green Led */ + .gpio = 111, + .active_low = 1, + },{ + .name = "mod2", /* Red Led */ + .gpio = 112, + .active_low = 1, + }, +}; + +static struct gpio_led_platform_data laguna_gpio_leds_data = { + .num_leds = 22, + .leds = laguna_gpio_leds, +}; + +static struct platform_device laguna_gpio_leds_device = { + .name = "leds-gpio", + .id = -1, + .dev.platform_data = &laguna_gpio_leds_data, +}; + +/* + * Ethernet + */ +static struct cns3xxx_plat_info laguna_net_data = { + .ports = 0, + .phy = { + 0, + 1, + 2, + }, +}; + +static struct resource laguna_net_resource[] = { + { + .name = "eth0_mem", + .start = CNS3XXX_SWITCH_BASE, + .end = CNS3XXX_SWITCH_BASE + SZ_4K - 1, + .flags = IORESOURCE_MEM + }, { + .name = "eth_rx", + .start = IRQ_CNS3XXX_SW_R0RXC, + .end = IRQ_CNS3XXX_SW_R0RXC, + .flags = IORESOURCE_IRQ + }, { + .name = "eth_stat", + .start = IRQ_CNS3XXX_SW_STATUS, + .end = IRQ_CNS3XXX_SW_STATUS, + .flags = IORESOURCE_IRQ + } +}; + +static u64 laguna_net_dmamask = DMA_BIT_MASK(32); +static struct platform_device laguna_net_device = { + .name = "cns3xxx_eth", + .id = 0, + .resource = laguna_net_resource, + .num_resources = ARRAY_SIZE(laguna_net_resource), + .dev = { + .dma_mask = &laguna_net_dmamask, + .coherent_dma_mask = DMA_BIT_MASK(32), + .platform_data = &laguna_net_data, + } +}; + +/* + * UART + */ +static void __init laguna_early_serial_setup(void) +{ +#ifdef CONFIG_SERIAL_8250_CONSOLE + static struct uart_port laguna_serial_port = { + .membase = (void __iomem *)CNS3XXX_UART0_BASE_VIRT, + .mapbase = CNS3XXX_UART0_BASE, + .irq = IRQ_CNS3XXX_UART0, + .iotype = UPIO_MEM, + .flags = UPF_BOOT_AUTOCONF | UPF_FIXED_TYPE, + .regshift = 2, + .uartclk = 24000000, + .line = 0, + .type = PORT_16550A, + .fifosize = 16, + }; + + early_serial_setup(&laguna_serial_port); +#endif +} + +static struct resource laguna_uart_resources[] = { + { + .start = CNS3XXX_UART0_BASE, + .end = CNS3XXX_UART0_BASE + SZ_4K - 1, + .flags = IORESOURCE_MEM + },{ + .start = CNS3XXX_UART2_BASE, + .end = CNS3XXX_UART2_BASE + SZ_4K - 1, + .flags = IORESOURCE_MEM + },{ + .start = CNS3XXX_UART2_BASE, + .end = CNS3XXX_UART2_BASE + SZ_4K - 1, + .flags = IORESOURCE_MEM + }, +}; + +static struct plat_serial8250_port laguna_uart_data[] = { + { + .mapbase = (CNS3XXX_UART0_BASE), + .irq = IRQ_CNS3XXX_UART0, + .iotype = UPIO_MEM, + .flags = UPF_BOOT_AUTOCONF | UPF_FIXED_TYPE | UPF_NO_TXEN_TEST | UPF_IOREMAP, + .regshift = 2, + .uartclk = 24000000, + .type = PORT_16550A, + },{ + .mapbase = (CNS3XXX_UART1_BASE), + .irq = IRQ_CNS3XXX_UART1, + .iotype = UPIO_MEM, + .flags = UPF_BOOT_AUTOCONF | UPF_FIXED_TYPE | UPF_NO_TXEN_TEST | UPF_IOREMAP, + .regshift = 2, + .uartclk = 24000000, + .type = PORT_16550A, + },{ + .mapbase = (CNS3XXX_UART2_BASE), + .irq = IRQ_CNS3XXX_UART2, + .iotype = UPIO_MEM, + .flags = UPF_BOOT_AUTOCONF | UPF_FIXED_TYPE | UPF_NO_TXEN_TEST | UPF_IOREMAP, + .regshift = 2, + .uartclk = 24000000, + .type = PORT_16550A, + }, + { }, +}; + +static struct platform_device laguna_uart = { + .name = "serial8250", + .id = PLAT8250_DEV_PLATFORM, + .dev.platform_data = laguna_uart_data, + .num_resources = 3, + .resource = laguna_uart_resources +}; + +/* + * USB + */ +static struct resource cns3xxx_usb_ehci_resources[] = { + [0] = { + .start = CNS3XXX_USB_BASE, + .end = CNS3XXX_USB_BASE + SZ_16M - 1, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = IRQ_CNS3XXX_USB_EHCI, + .flags = IORESOURCE_IRQ, + }, +}; + +static u64 cns3xxx_usb_ehci_dma_mask = DMA_BIT_MASK(32); + +static int csn3xxx_usb_power_on(struct platform_device *pdev) +{ + /* + * EHCI and OHCI share the same clock and power, + * resetting twice would cause the 1st controller been reset. + * Therefore only do power up at the first up device, and + * power down at the last down device. + * + * Set USB AHB INCR length to 16 + */ + if (atomic_inc_return(&usb_pwr_ref) == 1) { + cns3xxx_pwr_power_up(1 << PM_PLL_HM_PD_CTRL_REG_OFFSET_PLL_USB); + cns3xxx_pwr_clk_en(1 << PM_CLK_GATE_REG_OFFSET_USB_HOST); + cns3xxx_pwr_soft_rst(1 << PM_SOFT_RST_REG_OFFST_USB_HOST); + __raw_writel((__raw_readl(MISC_CHIP_CONFIG_REG) | (0X2 << 24)), + MISC_CHIP_CONFIG_REG); + } + + return 0; +} + +static void csn3xxx_usb_power_off(struct platform_device *pdev) +{ + /* + * EHCI and OHCI share the same clock and power, + * resetting twice would cause the 1st controller been reset. + * Therefore only do power up at the first up device, and + * power down at the last down device. + */ + if (atomic_dec_return(&usb_pwr_ref) == 0) + cns3xxx_pwr_clk_dis(1 << PM_CLK_GATE_REG_OFFSET_USB_HOST); +} + +static struct usb_ehci_pdata cns3xxx_usb_ehci_pdata = { + .power_on = csn3xxx_usb_power_on, + .power_off = csn3xxx_usb_power_off, +}; + +static struct platform_device cns3xxx_usb_ehci_device = { + .name = "ehci-platform", + .num_resources = ARRAY_SIZE(cns3xxx_usb_ehci_resources), + .resource = cns3xxx_usb_ehci_resources, + .dev = { + .dma_mask = &cns3xxx_usb_ehci_dma_mask, + .coherent_dma_mask = DMA_BIT_MASK(32), + .platform_data = &cns3xxx_usb_ehci_pdata, + }, +}; + +static struct resource cns3xxx_usb_ohci_resources[] = { + [0] = { + .start = CNS3XXX_USB_OHCI_BASE, + .end = CNS3XXX_USB_OHCI_BASE + SZ_16M - 1, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = IRQ_CNS3XXX_USB_OHCI, + .flags = IORESOURCE_IRQ, + }, +}; + +static u64 cns3xxx_usb_ohci_dma_mask = DMA_BIT_MASK(32); + +static struct usb_ohci_pdata cns3xxx_usb_ohci_pdata = { + .num_ports = 1, + .power_on = csn3xxx_usb_power_on, + .power_off = csn3xxx_usb_power_off, +}; + +static struct platform_device cns3xxx_usb_ohci_device = { + .name = "ohci-platform", + .num_resources = ARRAY_SIZE(cns3xxx_usb_ohci_resources), + .resource = cns3xxx_usb_ohci_resources, + .dev = { + .dma_mask = &cns3xxx_usb_ohci_dma_mask, + .coherent_dma_mask = DMA_BIT_MASK(32), + .platform_data = &cns3xxx_usb_ohci_pdata, + }, +}; + +static struct resource cns3xxx_usb_otg_resources[] = { + [0] = { + .start = CNS3XXX_USBOTG_BASE, + .end = CNS3XXX_USBOTG_BASE + SZ_16M - 1, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = IRQ_CNS3XXX_USB_OTG, + .flags = IORESOURCE_IRQ, + }, +}; + +static u64 cns3xxx_usb_otg_dma_mask = DMA_BIT_MASK(32); + +static struct platform_device cns3xxx_usb_otg_device = { + .name = "dwc2", + .num_resources = ARRAY_SIZE(cns3xxx_usb_otg_resources), + .resource = cns3xxx_usb_otg_resources, + .dev = { + .dma_mask = &cns3xxx_usb_otg_dma_mask, + .coherent_dma_mask = DMA_BIT_MASK(32), + }, +}; + +/* + * I2C + */ +static struct resource laguna_i2c_resource[] = { + { + .start = CNS3XXX_SSP_BASE + 0x20, + .end = CNS3XXX_SSP_BASE + 0x3f, + .flags = IORESOURCE_MEM, + },{ + .start = IRQ_CNS3XXX_I2C, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct platform_device laguna_i2c_controller = { + .name = "cns3xxx-i2c", + .num_resources = 2, + .resource = laguna_i2c_resource, +}; + +static struct memory_accessor *at24_mem_acc; + +static void at24_setup(struct memory_accessor *mem_acc, void *context) +{ + char buf[16]; + + at24_mem_acc = mem_acc; + + /* Read MAC addresses */ + if (at24_mem_acc->read(at24_mem_acc, buf, 0x100, 6) == 6) + memcpy(&laguna_net_data.hwaddr[0], buf, ETH_ALEN); + if (at24_mem_acc->read(at24_mem_acc, buf, 0x106, 6) == 6) + memcpy(&laguna_net_data.hwaddr[1], buf, ETH_ALEN); + if (at24_mem_acc->read(at24_mem_acc, buf, 0x10C, 6) == 6) + memcpy(&laguna_net_data.hwaddr[2], buf, ETH_ALEN); + if (at24_mem_acc->read(at24_mem_acc, buf, 0x112, 6) == 6) + memcpy(&laguna_net_data.hwaddr[3], buf, ETH_ALEN); + + /* Read out Model Information */ + if (at24_mem_acc->read(at24_mem_acc, buf, 0x130, 16) == 16) + memcpy(&laguna_info.model, buf, 16); + if (at24_mem_acc->read(at24_mem_acc, buf, 0x140, 1) == 1) + memcpy(&laguna_info.nor_flash_size, buf, 1); + if (at24_mem_acc->read(at24_mem_acc, buf, 0x141, 1) == 1) + memcpy(&laguna_info.spi_flash_size, buf, 1); + if (at24_mem_acc->read(at24_mem_acc, buf, 0x142, 4) == 4) + memcpy(&laguna_info.config_bitmap, buf, 4); + if (at24_mem_acc->read(at24_mem_acc, buf, 0x146, 4) == 4) + memcpy(&laguna_info.config2_bitmap, buf, 4); +}; + +static struct at24_platform_data laguna_eeprom_info = { + .byte_len = 1024, + .page_size = 16, + .flags = AT24_FLAG_READONLY, + .setup = at24_setup, +}; + +static struct pca953x_platform_data laguna_pca_data = { + .gpio_base = 100, + .irq_base = -1, +}; + +static struct pca953x_platform_data laguna_pca2_data = { + .gpio_base = 116, + .irq_base = -1, +}; + +static struct i2c_board_info __initdata laguna_i2c_devices[] = { + { + I2C_BOARD_INFO("pca9555", 0x23), + .platform_data = &laguna_pca_data, + },{ + I2C_BOARD_INFO("pca9555", 0x27), + .platform_data = &laguna_pca2_data, + },{ + I2C_BOARD_INFO("gsp", 0x29), + },{ + I2C_BOARD_INFO ("24c08",0x50), + .platform_data = &laguna_eeprom_info, + },{ + I2C_BOARD_INFO("ds1672", 0x68), + }, +}; + +/* + * Watchdog + */ + +static struct resource laguna_watchdog_resources[] = { + [0] = { + .start = CNS3XXX_TC11MP_TWD_BASE + 0x100, // CPU0 watchdog + .end = CNS3XXX_TC11MP_TWD_BASE + SZ_4K - 1, + .flags = IORESOURCE_MEM, + }, +}; + +static struct platform_device laguna_watchdog = { + .name = "mpcore_wdt", + .id = -1, + .num_resources = ARRAY_SIZE(laguna_watchdog_resources), + .resource = laguna_watchdog_resources, +}; + +/* + * GPS PPS + */ +static struct pps_gpio_platform_data laguna_pps_data = { + .gpio_pin = 0, + .gpio_label = "GPS_PPS", + .assert_falling_edge = 0, + .capture_clear = 0, +}; + +static struct platform_device laguna_pps_device = { + .name = "pps-gpio", + .id = -1, + .dev.platform_data = &laguna_pps_data, +}; + +/* + * GPIO + */ + +static struct gpio laguna_gpio_gw2391[] = { + { 0, GPIOF_IN , "*GPS_PPS" }, + { 1, GPIOF_IN , "*GSC_IRQ#" }, + { 2, GPIOF_IN , "*USB_FAULT#" }, + { 5, GPIOF_OUT_INIT_LOW , "*USB0_PCI_SEL" }, + { 6, GPIOF_OUT_INIT_HIGH, "*USB_VBUS_EN" }, + { 7, GPIOF_OUT_INIT_LOW , "*USB1_PCI_SEL" }, + { 8, GPIOF_OUT_INIT_HIGH, "*PERST#" }, + { 9, GPIOF_OUT_INIT_LOW , "*FP_SER_EN#" }, + { 100, GPIOF_IN , "*USER_PB#" }, + { 103, GPIOF_OUT_INIT_HIGH, "*V5_EN" }, + { 108, GPIOF_IN , "DIO0" }, + { 109, GPIOF_IN , "DIO1" }, + { 110, GPIOF_IN , "DIO2" }, + { 111, GPIOF_IN , "DIO3" }, + { 112, GPIOF_IN , "DIO4" }, +}; + +static struct gpio laguna_gpio_gw2388[] = { + { 0, GPIOF_IN , "*GPS_PPS" }, + { 1, GPIOF_IN , "*GSC_IRQ#" }, + { 3, GPIOF_IN , "*USB_FAULT#" }, + { 6, GPIOF_OUT_INIT_HIGH, "*USB_VBUS_EN" }, + { 7, GPIOF_OUT_INIT_LOW , "*GSM_SEL0" }, + { 8, GPIOF_OUT_INIT_LOW , "*GSM_SEL1" }, + { 9, GPIOF_OUT_INIT_LOW , "*FP_SER_EN" }, + { 100, GPIOF_OUT_INIT_HIGH, "*USER_PB#" }, + { 108, GPIOF_IN , "DIO0" }, + { 109, GPIOF_IN , "DIO1" }, + { 110, GPIOF_IN , "DIO2" }, + { 111, GPIOF_IN , "DIO3" }, + { 112, GPIOF_IN , "DIO4" }, +}; + +static struct gpio laguna_gpio_gw2387[] = { + { 0, GPIOF_IN , "*GPS_PPS" }, + { 1, GPIOF_IN , "*GSC_IRQ#" }, + { 2, GPIOF_IN , "*USB_FAULT#" }, + { 5, GPIOF_OUT_INIT_LOW , "*USB_PCI_SEL" }, + { 6, GPIOF_OUT_INIT_HIGH, "*USB_VBUS_EN" }, + { 7, GPIOF_OUT_INIT_LOW , "*GSM_SEL0" }, + { 8, GPIOF_OUT_INIT_LOW , "*GSM_SEL1" }, + { 9, GPIOF_OUT_INIT_LOW , "*FP_SER_EN" }, + { 100, GPIOF_IN , "*USER_PB#" }, + { 103, GPIOF_OUT_INIT_HIGH, "*V5_EN" }, + { 108, GPIOF_IN , "DIO0" }, + { 109, GPIOF_IN , "DIO1" }, + { 110, GPIOF_IN , "DIO2" }, + { 111, GPIOF_IN , "DIO3" }, + { 112, GPIOF_IN , "DIO4" }, + { 113, GPIOF_IN , "DIO5" }, +}; + +static struct gpio laguna_gpio_gw2385[] = { + { 0, GPIOF_IN , "*GSC_IRQ#" }, + { 1, GPIOF_OUT_INIT_HIGH, "*USB_HST_VBUS_EN" }, + { 2, GPIOF_IN , "*USB_HST_FAULT#" }, + { 5, GPIOF_IN , "*USB_OTG_FAULT#" }, + { 6, GPIOF_OUT_INIT_LOW , "*USB_HST_PCI_SEL" }, + { 7, GPIOF_OUT_INIT_LOW , "*GSM_SEL0" }, + { 8, GPIOF_OUT_INIT_LOW , "*GSM_SEL1" }, + { 9, GPIOF_OUT_INIT_LOW , "*SER_EN" }, + { 10, GPIOF_IN, "*USER_PB#" }, + { 11, GPIOF_OUT_INIT_HIGH, "*PERST#" }, + { 100, GPIOF_IN , "*USER_PB#" }, + { 103, GPIOF_OUT_INIT_HIGH, "V5_EN" }, +}; + +static struct gpio laguna_gpio_gw2384[] = { + { 0, GPIOF_IN , "*GSC_IRQ#" }, + { 1, GPIOF_OUT_INIT_HIGH, "*USB_HST_VBUS_EN" }, + { 2, GPIOF_IN , "*USB_HST_FAULT#" }, + { 5, GPIOF_IN , "*USB_OTG_FAULT#" }, + { 6, GPIOF_OUT_INIT_LOW , "*USB_HST_PCI_SEL" }, + { 7, GPIOF_OUT_INIT_LOW , "*GSM_SEL0" }, + { 8, GPIOF_OUT_INIT_LOW , "*GSM_SEL1" }, + { 9, GPIOF_OUT_INIT_LOW , "*FP_SER_EN" }, + { 12, GPIOF_OUT_INIT_LOW , "J10_DIOLED0" }, + { 13, GPIOF_OUT_INIT_HIGH, "*I2CMUX_RST#" }, + { 14, GPIOF_OUT_INIT_LOW , "J10_DIOLED1" }, + { 15, GPIOF_OUT_INIT_LOW , "J10_DIOLED2" }, + { 100, GPIOF_IN , "*USER_PB#" }, + { 103, GPIOF_OUT_INIT_HIGH, "V5_EN" }, + { 108, GPIOF_IN , "J9_DIOGSC0" }, +}; + +static struct gpio laguna_gpio_gw2383[] = { + { 0, GPIOF_IN , "*GPS_PPS" }, + { 1, GPIOF_IN , "*GSC_IRQ#" }, + { 2, GPIOF_OUT_INIT_HIGH, "*PCIE_RST#" }, + { 3, GPIOF_IN , "GPIO0" }, + { 8, GPIOF_IN , "GPIO1" }, + { 100, GPIOF_IN , "DIO0" }, + { 101, GPIOF_IN , "DIO1" }, + { 108, GPIOF_IN , "*USER_PB#" }, +}; + +static struct gpio laguna_gpio_gw2382[] = { + { 0, GPIOF_IN , "*GPS_PPS" }, + { 1, GPIOF_IN , "*GSC_IRQ#" }, + { 2, GPIOF_OUT_INIT_HIGH, "*PCIE_RST#" }, + { 3, GPIOF_IN , "GPIO0" }, + { 4, GPIOF_IN , "GPIO1" }, + { 9, GPIOF_OUT_INIT_HIGH, "*USB_VBUS_EN" }, + { 10, GPIOF_OUT_INIT_HIGH, "*USB_PCI_SEL#" }, + { 100, GPIOF_IN , "DIO0" }, + { 101, GPIOF_IN , "DIO1" }, + { 108, GPIOF_IN , "*USER_PB#" }, +}; + +static struct gpio laguna_gpio_gw2380[] = { + { 0, GPIOF_IN , "*GPS_PPS" }, + { 1, GPIOF_IN , "*GSC_IRQ#" }, + { 3, GPIOF_IN , "GPIO0" }, + { 8, GPIOF_IN , "GPIO1" }, + { 100, GPIOF_IN , "DIO0" }, + { 101, GPIOF_IN , "DIO1" }, + { 102, GPIOF_IN , "DIO2" }, + { 103, GPIOF_IN , "DIO3" }, + { 108, GPIOF_IN , "*USER_PB#" }, +}; + +/* + * Initialization + */ +static void __init laguna_init(void) +{ + struct clk *clk; + u32 __iomem *reg; + + clk = clk_register_fixed_rate(NULL, "cpu", NULL, + CLK_IS_ROOT | CLK_IGNORE_UNUSED, + cns3xxx_cpu_clock() * (1000000 / 8)); + clk_register_clkdev(clk, "cpu", NULL); + + platform_device_register(&laguna_watchdog); + + platform_device_register(&laguna_i2c_controller); + + /* Set ext_int 0-3 drive strength to 21 mA */ + reg = MISC_IO_PAD_DRIVE_STRENGTH_CTRL_B; + *reg |= 0x300; + + /* Enable SCL/SDA for I2C */ + reg = MISC_GPIOB_PIN_ENABLE_REG; + *reg |= BIT(12) | BIT(13); + + /* Enable MMC/SD pins */ + *reg |= BIT(7) | BIT(8) | BIT(9) | BIT(10) | BIT(11); + + cns3xxx_pwr_clk_en(1 << PM_CLK_GATE_REG_OFFSET_SPI_PCM_I2C); + cns3xxx_pwr_power_up(1 << PM_CLK_GATE_REG_OFFSET_SPI_PCM_I2C); + cns3xxx_pwr_soft_rst(1 << PM_CLK_GATE_REG_OFFSET_SPI_PCM_I2C); + + cns3xxx_pwr_clk_en(CNS3XXX_PWR_CLK_EN(SPI_PCM_I2C)); + cns3xxx_pwr_soft_rst(CNS3XXX_PWR_SOFTWARE_RST(SPI_PCM_I2C)); + + i2c_register_board_info(0, ARRAY_AND_SIZE(laguna_i2c_devices)); + + pm_power_off = cns3xxx_power_off; +} + +static struct map_desc laguna_io_desc[] __initdata = { + { + .virtual = CNS3XXX_UART0_BASE_VIRT, + .pfn = __phys_to_pfn(CNS3XXX_UART0_BASE), + .length = SZ_4K, + .type = MT_DEVICE, + }, +}; + +static void __init laguna_map_io(void) +{ + cns3xxx_map_io(); + cns3xxx_pcie_iotable_init(); + iotable_init(ARRAY_AND_SIZE(laguna_io_desc)); + laguna_early_serial_setup(); +} + +static int laguna_register_gpio(struct gpio *array, size_t num) +{ + int i, err, ret; + + ret = 0; + for (i = 0; i < num; i++, array++) { + const char *label = array->label; + if (label[0] == '*') + label++; + err = gpio_request_one(array->gpio, array->flags, label); + if (err) + ret = err; + else { + err = gpio_export(array->gpio, array->label[0] != '*'); + } + } + return ret; +} + +static int __init laguna_pcie_init(void) +{ + if (!machine_is_gw2388()) + return 0; + + return cns3xxx_pcie_init(); +} +subsys_initcall(laguna_pcie_init); + +static int __init laguna_model_setup(void) +{ + u32 __iomem *mem; + u32 reg; + + if (!machine_is_gw2388()) + return 0; + + printk("Running on Gateworks Laguna %s\n", laguna_info.model); + cns3xxx_gpio_init( 0, 32, CNS3XXX_GPIOA_BASE_VIRT, IRQ_CNS3XXX_GPIOA, + NR_IRQS_CNS3XXX); + cns3xxx_gpio_init(32, 32, CNS3XXX_GPIOB_BASE_VIRT, IRQ_CNS3XXX_GPIOB, + NR_IRQS_CNS3XXX + 32); + + if (strncmp(laguna_info.model, "GW", 2) == 0) { + if (laguna_info.config_bitmap & ETH0_LOAD) + laguna_net_data.ports |= BIT(0); + if (laguna_info.config_bitmap & ETH1_LOAD) + laguna_net_data.ports |= BIT(1); + if (laguna_info.config_bitmap & ETH2_LOAD) + laguna_net_data.ports |= BIT(2); + if (laguna_net_data.ports) + platform_device_register(&laguna_net_device); + + if ((laguna_info.config_bitmap & SATA0_LOAD) || + (laguna_info.config_bitmap & SATA1_LOAD)) + cns3xxx_ahci_init(); + + if (laguna_info.config_bitmap & (USB0_LOAD)) { + cns3xxx_pwr_power_up(1 << PM_PLL_HM_PD_CTRL_REG_OFFSET_PLL_USB); + + /* DRVVBUS pins share with GPIOA */ + mem = (void __iomem *)(CNS3XXX_MISC_BASE_VIRT + 0x0014); + reg = __raw_readl(mem); + reg |= 0x8; + __raw_writel(reg, mem); + + /* Enable OTG */ + mem = (void __iomem *)(CNS3XXX_MISC_BASE_VIRT + 0x0808); + reg = __raw_readl(mem); + reg &= ~(1 << 10); + __raw_writel(reg, mem); + + platform_device_register(&cns3xxx_usb_otg_device); + } + + if (laguna_info.config_bitmap & (USB1_LOAD)) { + platform_device_register(&cns3xxx_usb_ehci_device); + platform_device_register(&cns3xxx_usb_ohci_device); + } + + if (laguna_info.config_bitmap & (SD_LOAD)) + cns3xxx_sdhci_init(); + + if (laguna_info.config_bitmap & (UART0_LOAD)) + laguna_uart.num_resources = 1; + if (laguna_info.config_bitmap & (UART1_LOAD)) + laguna_uart.num_resources = 2; + if (laguna_info.config_bitmap & (UART2_LOAD)) + laguna_uart.num_resources = 3; + platform_device_register(&laguna_uart); + + if (laguna_info.config2_bitmap & (NOR_FLASH_LOAD)) { + switch (laguna_info.nor_flash_size) { + case 1: + laguna_nor_partitions[3].size = SZ_8M - SZ_256K - SZ_128K - SZ_2M; + laguna_nor_res.end = CNS3XXX_FLASH_BASE + SZ_8M - 1; + break; + case 2: + laguna_nor_partitions[3].size = SZ_16M - SZ_256K - SZ_128K - SZ_2M; + laguna_nor_res.end = CNS3XXX_FLASH_BASE + SZ_16M - 1; + break; + case 3: + laguna_nor_partitions[3].size = SZ_32M - SZ_256K - SZ_128K - SZ_2M; + laguna_nor_res.end = CNS3XXX_FLASH_BASE + SZ_32M - 1; + break; + case 4: + laguna_nor_partitions[3].size = SZ_64M - SZ_256K - SZ_128K - SZ_2M; + laguna_nor_res.end = CNS3XXX_FLASH_BASE + SZ_64M - 1; + break; + case 5: + laguna_nor_partitions[3].size = SZ_128M - SZ_256K - SZ_128K - SZ_2M; + laguna_nor_res.end = CNS3XXX_FLASH_BASE + SZ_128M - 1; + break; + } + platform_device_register(&laguna_nor_pdev); + } + + if (laguna_info.config2_bitmap & (SPI_FLASH_LOAD)) { + switch (laguna_info.spi_flash_size) { + case 1: + laguna_spi_partitions[3].size = SZ_4M - SZ_2M; + break; + case 2: + laguna_spi_partitions[3].size = SZ_8M - SZ_2M; + break; + case 3: + laguna_spi_partitions[3].size = SZ_16M - SZ_2M; + break; + case 4: + laguna_spi_partitions[3].size = SZ_32M - SZ_2M; + break; + case 5: + laguna_spi_partitions[3].size = SZ_64M - SZ_2M; + break; + } + spi_register_board_info(ARRAY_AND_SIZE(laguna_spi_devices)); + } + + if ((laguna_info.config_bitmap & SPI0_LOAD) || + (laguna_info.config_bitmap & SPI1_LOAD)) + platform_device_register(&laguna_spi_controller); + + if (laguna_info.config2_bitmap & GPS_LOAD) + platform_device_register(&laguna_pps_device); + + /* + * Do any model specific setup not known by the bitmap by matching + * the first 6 characters of the model name + */ + + if ( (strncmp(laguna_info.model, "GW2388", 6) == 0) + || (strncmp(laguna_info.model, "GW2389", 6) == 0) ) + { + // configure GPIO's + laguna_register_gpio(ARRAY_AND_SIZE(laguna_gpio_gw2388)); + // configure LED's + laguna_gpio_leds_data.num_leds = 2; + } else if (strncmp(laguna_info.model, "GW2387", 6) == 0) { + // configure GPIO's + laguna_register_gpio(ARRAY_AND_SIZE(laguna_gpio_gw2387)); + // configure LED's + laguna_gpio_leds_data.num_leds = 2; + } else if (strncmp(laguna_info.model, "GW2385", 6) == 0) { + // configure GPIO's + laguna_register_gpio(ARRAY_AND_SIZE(laguna_gpio_gw2385)); + // configure LED's + laguna_gpio_leds[0].gpio = 115; + laguna_gpio_leds[1].gpio = 12; + laguna_gpio_leds[1].name = "red"; + laguna_gpio_leds[1].active_low = 0, + laguna_gpio_leds[2].gpio = 14; + laguna_gpio_leds[2].name = "green"; + laguna_gpio_leds[2].active_low = 0, + laguna_gpio_leds[3].gpio = 15; + laguna_gpio_leds[3].name = "blue"; + laguna_gpio_leds[3].active_low = 0, + laguna_gpio_leds_data.num_leds = 4; + } else if (strncmp(laguna_info.model, "GW2384", 6) == 0) { + // configure GPIO's + laguna_register_gpio(ARRAY_AND_SIZE(laguna_gpio_gw2384)); + // configure LED's + laguna_gpio_leds_data.num_leds = 1; + } else if (strncmp(laguna_info.model, "GW2383", 6) == 0) { + // configure GPIO's + laguna_register_gpio(ARRAY_AND_SIZE(laguna_gpio_gw2383)); + // configure LED's + laguna_gpio_leds[0].gpio = 107; + laguna_gpio_leds_data.num_leds = 1; + } else if (strncmp(laguna_info.model, "GW2382", 6) == 0) { + // configure GPIO's + laguna_register_gpio(ARRAY_AND_SIZE(laguna_gpio_gw2382)); + // configure LED's + laguna_gpio_leds[0].gpio = 107; + laguna_gpio_leds_data.num_leds = 1; + } else if (strncmp(laguna_info.model, "GW2380", 6) == 0) { + // configure GPIO's + laguna_register_gpio(ARRAY_AND_SIZE(laguna_gpio_gw2380)); + // configure LED's + laguna_gpio_leds[0].gpio = 107; + laguna_gpio_leds[1].gpio = 106; + laguna_gpio_leds_data.num_leds = 2; + } else if (strncmp(laguna_info.model, "GW2391", 6) == 0) { + // configure GPIO's + laguna_register_gpio(ARRAY_AND_SIZE(laguna_gpio_gw2391)); + // configure LED's + laguna_gpio_leds_data.num_leds = 2; + } + platform_device_register(&laguna_gpio_leds_device); + } else { + // Do some defaults here, not sure what yet + } + return 0; +} +late_initcall(laguna_model_setup); + +MACHINE_START(GW2388, "Gateworks Corporation Laguna Platform") + .smp = smp_ops(cns3xxx_smp_ops), + .atag_offset = 0x100, + .map_io = laguna_map_io, + .init_irq = cns3xxx_init_irq, + .init_time = cns3xxx_timer_init, + .init_machine = laguna_init, + .restart = cns3xxx_restart, +MACHINE_END diff --git a/target/linux/cns3xxx/files/arch/arm/mach-cns3xxx/localtimer.c b/target/linux/cns3xxx/files/arch/arm/mach-cns3xxx/localtimer.c new file mode 100644 index 0000000..5e1111c --- /dev/null +++ b/target/linux/cns3xxx/files/arch/arm/mach-cns3xxx/localtimer.c @@ -0,0 +1,26 @@ +/* linux/arch/arm/mach-cns3xxx/localtimer.c + * + * Cloned from linux/arch/arm/mach-realview/localtimer.c + * + * Copyright (C) 2002 ARM Ltd. + * All Rights Reserved + * + * 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/clockchips.h> + +#include <asm/irq.h> +#include <asm/localtimer.h> + +/* + * Setup the local clock events for a CPU. + */ +int __cpuinit local_timer_setup(struct clock_event_device *evt) +{ + evt->irq = IRQ_LOCALTIMER; + twd_timer_setup(evt); + return 0; +} diff --git a/target/linux/cns3xxx/files/arch/arm/mach-cns3xxx/platsmp.c b/target/linux/cns3xxx/files/arch/arm/mach-cns3xxx/platsmp.c new file mode 100644 index 0000000..5359885 --- /dev/null +++ b/target/linux/cns3xxx/files/arch/arm/mach-cns3xxx/platsmp.c @@ -0,0 +1,337 @@ +/* + * linux/arch/arm/mach-cns3xxx/platsmp.c + * + * Copyright (C) 2002 ARM Ltd. + * Copyright 2012 Gateworks Corporation + * Chris Lang <clang@gateworks.com> + * Tim Harvey <tharvey@gateworks.com> + * + * All Rights Reserved + * + * 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/errno.h> +#include <linux/delay.h> +#include <linux/device.h> +#include <linux/jiffies.h> +#include <linux/smp.h> +#include <linux/io.h> + +#include <asm/cacheflush.h> +#include <asm/smp_scu.h> +#include <asm/unified.h> +#include <asm/fiq.h> +#include <mach/smp.h> +#include "cns3xxx.h" + +static struct fiq_handler fh = { + .name = "cns3xxx-fiq" +}; + +struct fiq_req { + union { + struct { + const void *addr; + size_t size; + } map; + struct { + const void *addr; + size_t size; + } unmap; + struct { + const void *start; + const void *end; + } flush; + }; + volatile uint flags; + void __iomem *reg; +} ____cacheline_aligned; + +extern unsigned int fiq_number[2]; + +DEFINE_PER_CPU(struct fiq_req, fiq_data); + +#define FIQ_ENABLED 0x80000000 +#define FIQ_GENERATE 0x00010000 +#define CNS3XXX_MAP_AREA 0x01000000 +#define CNS3XXX_UNMAP_AREA 0x02000000 +#define CNS3XXX_FLUSH_RANGE 0x03000000 + +extern void cns3xxx_secondary_startup(void); +extern unsigned char cns3xxx_fiq_start, cns3xxx_fiq_end; + +#define SCU_CPU_STATUS 0x08 +static void __iomem *scu_base; + +static inline void __cpuinit cns3xxx_set_fiq_regs(unsigned int cpu) +{ + struct pt_regs FIQ_regs; + struct fiq_req *fiq_req = &per_cpu(fiq_data, !cpu); + + FIQ_regs.ARM_r8 = 0; + FIQ_regs.ARM_ip = (unsigned int)fiq_req; + FIQ_regs.ARM_sp = (int) MISC_FIQ_CPU(!cpu); + fiq_req->reg = MISC_FIQ_CPU(!cpu); + + set_fiq_regs(&FIQ_regs); +} + +static void __init cns3xxx_init_fiq(void) +{ + void *fiqhandler_start; + unsigned int fiqhandler_length; + int ret; + + fiqhandler_start = &cns3xxx_fiq_start; + fiqhandler_length = &cns3xxx_fiq_end - &cns3xxx_fiq_start; + + ret = claim_fiq(&fh); + if (ret) + return; + + set_fiq_handler(fiqhandler_start, fiqhandler_length); +} + + +/* + * Write pen_release in a way that is guaranteed to be visible to all + * observers, irrespective of whether they're taking part in coherency + * or not. This is necessary for the hotplug code to work reliably. + */ +static void __cpuinit write_pen_release(int val) +{ + pen_release = val; + smp_wmb(); + __cpuc_flush_dcache_area((void *)&pen_release, sizeof(pen_release)); + outer_clean_range(__pa(&pen_release), __pa(&pen_release + 1)); +} + +static DEFINE_SPINLOCK(boot_lock); + +static void __cpuinit cns3xxx_secondary_init(unsigned int cpu) +{ + /* + * Setup Secondary Core FIQ regs + */ + cns3xxx_set_fiq_regs(1); + + /* + * let the primary processor know we're out of the + * pen, then head off into the C entry point + */ + write_pen_release(-1); + + /* + * Synchronise with the boot thread. + */ + spin_lock(&boot_lock); + spin_unlock(&boot_lock); +} + +static int __cpuinit cns3xxx_boot_secondary(unsigned int cpu, struct task_struct *idle) +{ + unsigned long timeout; + + /* + * Set synchronisation state between this boot processor + * and the secondary one + */ + spin_lock(&boot_lock); + + /* + * The secondary processor is waiting to be released from + * the holding pen - release it, then wait for it to flag + * that it has been released by resetting pen_release. + * + * Note that "pen_release" is the hardware CPU ID, whereas + * "cpu" is Linux's internal ID. + */ + write_pen_release(cpu); + + /* + * Send the secondary CPU a soft interrupt, thereby causing + * the boot monitor to read the system wide flags register, + * and branch to the address found there. + */ + arch_send_wakeup_ipi_mask(cpumask_of(cpu));; + + timeout = jiffies + (1 * HZ); + while (time_before(jiffies, timeout)) { + smp_rmb(); + if (pen_release == -1) + break; + + udelay(10); + } + + /* + * now the secondary core is starting up let it run its + * calibrations, then wait for it to finish + */ + spin_unlock(&boot_lock); + + return pen_release != -1 ? -ENOSYS : 0; +} + +/* + * Initialise the CPU possible map early - this describes the CPUs + * which may be present or become present in the system. + */ +static void __init cns3xxx_smp_init_cpus(void) +{ + unsigned int i, ncores; + unsigned int status; + + scu_base = (void __iomem *) CNS3XXX_TC11MP_SCU_BASE_VIRT; + + /* for CNS3xxx SCU_CPU_STATUS must be examined instead of SCU_CONFIGURATION + * used in scu_get_core_count + */ + status = __raw_readl(scu_base + SCU_CPU_STATUS); + for (i = 0; i < NR_CPUS+1; i++) { + if (((status >> (i*2)) & 0x3) == 0) + set_cpu_possible(i, true); + else + break; + } + ncores = i; +} + +static void __init cns3xxx_smp_prepare_cpus(unsigned int max_cpus) +{ + int i; + + /* + * Initialise the present map, which describes the set of CPUs + * actually populated at the present time. + */ + for (i = 0; i < max_cpus; i++) { + set_cpu_present(i, true); + } + + /* + * enable SCU + */ + scu_enable(scu_base); + + /* + * Write the address of secondary startup into the + * system-wide flags register. The boot monitor waits + * until it receives a soft interrupt, and then the + * secondary CPU branches to this address. + */ + __raw_writel(virt_to_phys(cns3xxx_secondary_startup), + (void __iomem *)(CNS3XXX_MISC_BASE_VIRT + 0x0600)); + + /* + * Setup FIQ's for main cpu + */ + cns3xxx_init_fiq(); + cns3xxx_set_fiq_regs(0); +} + +extern void v6_dma_map_area(const void *, size_t, int); +extern void v6_dma_unmap_area(const void *, size_t, int); +extern void v6_dma_flush_range(const void *, const void *); +extern void v6_flush_kern_dcache_area(void *, size_t); + +void fiq_dma_map_area(const void *addr, size_t size, int dir) +{ + unsigned long flags; + struct fiq_req *req; + + raw_local_irq_save(flags); + /* currently, not possible to take cpu0 down, so only check cpu1 */ + if (!cpu_online(1)) { + raw_local_irq_restore(flags); + v6_dma_map_area(addr, size, dir); + return; + } + + req = this_cpu_ptr(&fiq_data); + req->map.addr = addr; + req->map.size = size; + req->flags = dir | CNS3XXX_MAP_AREA; + smp_mb(); + + writel_relaxed(FIQ_GENERATE, req->reg); + + v6_dma_map_area(addr, size, dir); + while (req->flags) + barrier(); + + raw_local_irq_restore(flags); +} + +void fiq_dma_unmap_area(const void *addr, size_t size, int dir) +{ + unsigned long flags; + struct fiq_req *req; + + raw_local_irq_save(flags); + /* currently, not possible to take cpu0 down, so only check cpu1 */ + if (!cpu_online(1)) { + raw_local_irq_restore(flags); + v6_dma_unmap_area(addr, size, dir); + return; + } + + req = this_cpu_ptr(&fiq_data); + req->unmap.addr = addr; + req->unmap.size = size; + req->flags = dir | CNS3XXX_UNMAP_AREA; + smp_mb(); + + writel_relaxed(FIQ_GENERATE, req->reg); + + v6_dma_unmap_area(addr, size, dir); + while (req->flags) + barrier(); + + raw_local_irq_restore(flags); +} + +void fiq_dma_flush_range(const void *start, const void *end) +{ + unsigned long flags; + struct fiq_req *req; + + raw_local_irq_save(flags); + /* currently, not possible to take cpu0 down, so only check cpu1 */ + if (!cpu_online(1)) { + raw_local_irq_restore(flags); + v6_dma_flush_range(start, end); + return; + } + + req = this_cpu_ptr(&fiq_data); + + req->flush.start = start; + req->flush.end = end; + req->flags = CNS3XXX_FLUSH_RANGE; + smp_mb(); + + writel_relaxed(FIQ_GENERATE, req->reg); + + v6_dma_flush_range(start, end); + + while (req->flags) + barrier(); + + raw_local_irq_restore(flags); +} + +void fiq_flush_kern_dcache_area(void *addr, size_t size) +{ + fiq_dma_flush_range(addr, addr + size); +} + +struct smp_operations cns3xxx_smp_ops __initdata = { + .smp_init_cpus = cns3xxx_smp_init_cpus, + .smp_prepare_cpus = cns3xxx_smp_prepare_cpus, + .smp_secondary_init = cns3xxx_secondary_init, + .smp_boot_secondary = cns3xxx_boot_secondary, +}; diff --git a/target/linux/cns3xxx/files/drivers/i2c/busses/i2c-cns3xxx.c b/target/linux/cns3xxx/files/drivers/i2c/busses/i2c-cns3xxx.c new file mode 100644 index 0000000..7acff37 --- /dev/null +++ b/target/linux/cns3xxx/files/drivers/i2c/busses/i2c-cns3xxx.c @@ -0,0 +1,374 @@ +/* + * Cavium CNS3xxx I2C Host Controller + * + * Copyright 2010 Cavium Network + * Copyright 2012 Gateworks Corporation + * Chris Lang <clang@gateworks.com> + * Tim Harvey <tharvey@gateworks.com> + * + * This file 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/kernel.h> +#include <linux/module.h> +#include <linux/init.h> +#include <linux/platform_device.h> +#include <asm/io.h> +#include <linux/wait.h> +#include <linux/interrupt.h> +#include <linux/delay.h> +#include <linux/i2c.h> +#include <linux/slab.h> +#include <linux/clk.h> + +/* + * We need the memory map + */ + +#define I2C_MEM_MAP_ADDR(x) (i2c->base + x) +#define I2C_MEM_MAP_VALUE(x) (*((unsigned int volatile*)I2C_MEM_MAP_ADDR(x))) + +#define I2C_CONTROLLER_REG I2C_MEM_MAP_VALUE(0x00) +#define I2C_TIME_OUT_REG I2C_MEM_MAP_VALUE(0x04) +#define I2C_SLAVE_ADDRESS_REG I2C_MEM_MAP_VALUE(0x08) +#define I2C_WRITE_DATA_REG I2C_MEM_MAP_VALUE(0x0C) +#define I2C_READ_DATA_REG I2C_MEM_MAP_VALUE(0x10) +#define I2C_INTERRUPT_STATUS_REG I2C_MEM_MAP_VALUE(0x14) +#define I2C_INTERRUPT_ENABLE_REG I2C_MEM_MAP_VALUE(0x18) +#define I2C_TWI_OUT_DLY_REG I2C_MEM_MAP_VALUE(0x1C) + +#define I2C_BUS_ERROR_FLAG (0x1) +#define I2C_ACTION_DONE_FLAG (0x2) + +#define CNS3xxx_I2C_ENABLE() (I2C_CONTROLLER_REG) |= ((unsigned int)0x1 << 31) +#define CNS3xxx_I2C_DISABLE() (I2C_CONTROLLER_REG) &= ~((unsigned int)0x1 << 31) +#define CNS3xxx_I2C_ENABLE_INTR() (I2C_INTERRUPT_ENABLE_REG) |= 0x03 +#define CNS3xxx_I2C_DISABLE_INTR() (I2C_INTERRUPT_ENABLE_REG) &= 0xfc + +#define TWI_TIMEOUT (10*HZ) +#define I2C_100KHZ 100000 +#define I2C_200KHZ 200000 +#define I2C_300KHZ 300000 +#define I2C_400KHZ 400000 + +#define CNS3xxx_I2C_CLK I2C_100KHZ + +#define STATE_DONE 1 +#define STATE_ERROR 2 + +struct cns3xxx_i2c { + struct device *dev; + void __iomem *base; /* virtual */ + wait_queue_head_t wait; + struct i2c_adapter adap; + struct i2c_msg *msg; + u8 state; /* see STATE_ */ + u8 error; /* see TWI_STATUS register */ + int rd_wr_len; + u8 *buf; +}; + +static u32 cns3xxx_i2c_func(struct i2c_adapter *adap) +{ + return I2C_FUNC_I2C | I2C_FUNC_SMBUS_EMUL; +} + +static int +cns3xxx_i2c_xfer_msg(struct i2c_adapter *adap, struct i2c_msg *msg) +{ + struct cns3xxx_i2c *i2c = i2c_get_adapdata(adap); + int i, j; + u8 buf[1] = { 0 }; + + if (msg->len == 0) { + /* + * We are probably doing a probe for a device here, + * so set the length to one, and data to 0 + */ + msg->len = 1; + i2c->buf = buf; + } else { + i2c->buf = msg->buf; + } + + if (msg->flags & I2C_M_TEN) { + printk + ("%s:%d: Presently the driver does not handle extended addressing\n", + __FUNCTION__, __LINE__); + return -EINVAL; + } + i2c->msg = msg; + + for (i = 0; i < msg->len; i++) { + if (msg->len - i >= 4) + i2c->rd_wr_len = 3; + else + i2c->rd_wr_len = msg->len - i - 1; + + // Set Data Width and TWI_EN + I2C_CONTROLLER_REG = 0x80000000 | (i2c->rd_wr_len << 2) | (i2c->rd_wr_len); + + // Clear Write Reg + I2C_WRITE_DATA_REG = 0; + + // Set the slave address + I2C_SLAVE_ADDRESS_REG = (msg->addr << 1); + + // Are we Writing + if (!(msg->flags & I2C_M_RD)) { + I2C_CONTROLLER_REG |= (1 << 4); + if (i != 0) { + /* + * We need to set the address in the first byte. + * The base address is going to be in buf[0] and then + * it needs to be incremented by i - 1. + */ + i2c->buf--; + *i2c->buf = buf[0] + i - 1; + + if (i2c->rd_wr_len < 3) { + i += i2c->rd_wr_len; + i2c->rd_wr_len++; + I2C_CONTROLLER_REG = 0x80000000 | (1 << 4) | (i2c->rd_wr_len << 2) | (i2c->rd_wr_len); + } else { + i += i2c->rd_wr_len - 1; + } + } else { + i += i2c->rd_wr_len; + buf[0] = *i2c->buf; + } + for (j = 0; j <= i2c->rd_wr_len; j++) { + I2C_WRITE_DATA_REG |= ((*i2c->buf++) << (8 * j)); + } + } else { + i += i2c->rd_wr_len; + } + + // Start the Transfer + i2c->state = 0; // Clear out the State + i2c->error = 0; + I2C_CONTROLLER_REG |= (1 << 6); + + if (wait_event_timeout(i2c->wait, (i2c->state == STATE_ERROR) || + (i2c->state == STATE_DONE), TWI_TIMEOUT)) { + if (i2c->state == STATE_ERROR) { + dev_dbg(i2c->dev, "controller error: 0x%2x", i2c->error); + return -EAGAIN; // try again + } + } else { + dev_err(i2c->dev, "controller timed out " + "waiting for start condition to finish\n"); + return -ETIMEDOUT; + } + } + return 0; +} + +static int +cns3xxx_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg *msgs, int num) +{ + int i; + int ret; + for (i = 0; i < num; i++) + { + ret = cns3xxx_i2c_xfer_msg(adap, &msgs[i]); + if (ret < 0) { + return ret; + } + } + return num; +} + + +static struct i2c_algorithm cns3xxx_i2c_algo = { + .master_xfer = cns3xxx_i2c_xfer, + .functionality = cns3xxx_i2c_func, +}; + +static struct i2c_adapter cns3xxx_i2c_adapter = { + .owner = THIS_MODULE, + .algo = &cns3xxx_i2c_algo, + .algo_data = NULL, + .nr = 0, + .name = "CNS3xxx I2C 0", + .retries = 5, +}; + +static void cns3xxx_i2c_adapter_init(struct cns3xxx_i2c *i2c) +{ + struct clk *clk; + + clk = devm_clk_get(i2c->dev, "cpu"); + if (WARN_ON(!clk)) + return; + + /* Disable the I2C */ + I2C_CONTROLLER_REG = 0; /* Disabled the I2C */ + + /* Check the Reg Dump when testing */ + I2C_TIME_OUT_REG = + (((((clk_get_rate(clk) / (2 * CNS3xxx_I2C_CLK)) - + 1) & 0x3FF) << 8) | (1 << 7) | 0x7F); + I2C_TWI_OUT_DLY_REG |= 0x3; + + /* Enable The Interrupt */ + CNS3xxx_I2C_ENABLE_INTR(); + + /* Clear Interrupt Status (0x2 | 0x1) */ + I2C_INTERRUPT_STATUS_REG |= (I2C_ACTION_DONE_FLAG | I2C_BUS_ERROR_FLAG); + + /* Enable the I2C Controller */ + CNS3xxx_I2C_ENABLE(); +} + +static irqreturn_t cns3xxx_i2c_isr(int irq, void *dev_id) +{ + struct cns3xxx_i2c *i2c = dev_id; + int i; + uint32_t stat = I2C_INTERRUPT_STATUS_REG; + + /* Clear Interrupt */ + I2C_INTERRUPT_STATUS_REG |= 0x1; + + if (stat & I2C_BUS_ERROR_FLAG) { + i2c->state = STATE_ERROR; + i2c->error = (I2C_INTERRUPT_STATUS_REG & 0xff00)>>8; + } else { + if (i2c->msg->flags & I2C_M_RD) { + for (i = 0; i <= i2c->rd_wr_len; i++) + { + *i2c->buf++ = ((I2C_READ_DATA_REG >> (8 * i)) & 0xff); + } + } + i2c->state = STATE_DONE; + } + wake_up(&i2c->wait); + return IRQ_HANDLED; +} + +static int cns3xxx_i2c_probe(struct platform_device *pdev) +{ + struct cns3xxx_i2c *i2c; + struct resource *res, *res2; + int ret; + + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (!res) { + printk("%s: IORESOURCE_MEM not defined \n", __FUNCTION__); + return -ENODEV; + } + + res2 = platform_get_resource(pdev, IORESOURCE_IRQ, 0); + if (!res2) { + printk("%s: IORESOURCE_IRQ not defined \n", __FUNCTION__); + return -ENODEV; + } + + i2c = kzalloc(sizeof(*i2c), GFP_KERNEL); + if (!i2c) + return -ENOMEM; + + if (!request_mem_region(res->start, res->end - res->start + 1, + pdev->name)) { + dev_err(&pdev->dev, "Memory region busy\n"); + ret = -EBUSY; + goto request_mem_failed; + } + + i2c->dev = &pdev->dev; + i2c->base = ioremap(res->start, res->end - res->start + 1); + if (!i2c->base) { + dev_err(&pdev->dev, "Unable to map registers\n"); + ret = -EIO; + goto map_failed; + } + + cns3xxx_i2c_adapter_init(i2c); + + init_waitqueue_head(&i2c->wait); + ret = request_irq(res2->start, cns3xxx_i2c_isr, 0, pdev->name, i2c); + if (ret) { + dev_err(&pdev->dev, "Cannot claim IRQ\n"); + goto request_irq_failed; + } + + platform_set_drvdata(pdev, i2c); + i2c->adap = cns3xxx_i2c_adapter; + i2c_set_adapdata(&i2c->adap, i2c); + i2c->adap.dev.parent = &pdev->dev; + + /* add i2c adapter to i2c tree */ + ret = i2c_add_numbered_adapter(&i2c->adap); + if (ret) { + dev_err(&pdev->dev, "Failed to add adapter\n"); + goto add_adapter_failed; + } + + return 0; + + add_adapter_failed: + free_irq(res2->start, i2c); + request_irq_failed: + iounmap(i2c->base); + map_failed: + release_mem_region(res->start, res->end - res->start + 1); + request_mem_failed: + kfree(i2c); + + return ret; +} + +static int cns3xxx_i2c_remove(struct platform_device *pdev) +{ + struct cns3xxx_i2c *i2c = platform_get_drvdata(pdev); + struct resource *res; + + /* disable i2c logic */ + CNS3xxx_I2C_DISABLE_INTR(); + CNS3xxx_I2C_DISABLE(); + /* remove adapter & data */ + i2c_del_adapter(&i2c->adap); + platform_set_drvdata(pdev, NULL); + + res = platform_get_resource(pdev, IORESOURCE_IRQ, 0); + if (res) + free_irq(res->start, i2c); + + iounmap(i2c->base); + + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (res) + release_mem_region(res->start, res->end - res->start + 1); + + kfree(i2c); + + return 0; +} + +static struct platform_driver cns3xxx_i2c_driver = { + .probe = cns3xxx_i2c_probe, + .remove = cns3xxx_i2c_remove, + .driver = { + .owner = THIS_MODULE, + .name = "cns3xxx-i2c", + }, +}; + +static int __init cns3xxx_i2c_init(void) +{ + return platform_driver_register(&cns3xxx_i2c_driver); +} + +static void __exit cns3xxx_i2c_exit(void) +{ + platform_driver_unregister(&cns3xxx_i2c_driver); +} + +module_init(cns3xxx_i2c_init); +module_exit(cns3xxx_i2c_exit); + +MODULE_AUTHOR("Cavium Networks"); +MODULE_DESCRIPTION("Cavium CNS3XXX I2C Controller"); +MODULE_LICENSE("GPL"); diff --git a/target/linux/cns3xxx/files/drivers/net/ethernet/cavium/Kconfig b/target/linux/cns3xxx/files/drivers/net/ethernet/cavium/Kconfig new file mode 100644 index 0000000..79eebe2 --- /dev/null +++ b/target/linux/cns3xxx/files/drivers/net/ethernet/cavium/Kconfig @@ -0,0 +1,24 @@ +config NET_VENDOR_CAVIUM + bool "Cavium devices" + default y + depends on ARCH_CNS3XXX + ---help--- + If you have a network (Ethernet) chipset belonging to this class, + say Y. + + Note that the answer to this question does not directly affect + the kernel: saying N will just case the configurator to skip all + the questions regarding AMD chipsets. If you say Y, you will be asked + for your specific chipset/driver in the following questions. + +if NET_VENDOR_CAVIUM + +config CNS3XXX_ETH + tristate "Cavium CNS3xxx Ethernet support" + depends on ARCH_CNS3XXX + select PHYLIB + help + Say Y here if you want to use built-in Ethernet ports + on CNS3XXX processor. + +endif diff --git a/target/linux/cns3xxx/files/drivers/net/ethernet/cavium/Makefile b/target/linux/cns3xxx/files/drivers/net/ethernet/cavium/Makefile new file mode 100644 index 0000000..badd240 --- /dev/null +++ b/target/linux/cns3xxx/files/drivers/net/ethernet/cavium/Makefile @@ -0,0 +1,5 @@ +# +# Makefile for the Cavium ethernet device drivers. +# + +obj-$(CONFIG_CNS3XXX_ETH) += cns3xxx_eth.o diff --git a/target/linux/cns3xxx/files/drivers/net/ethernet/cavium/cns3xxx_eth.c b/target/linux/cns3xxx/files/drivers/net/ethernet/cavium/cns3xxx_eth.c new file mode 100644 index 0000000..e2db636 --- /dev/null +++ b/target/linux/cns3xxx/files/drivers/net/ethernet/cavium/cns3xxx_eth.c @@ -0,0 +1,1358 @@ +/* + * Cavium CNS3xxx Gigabit driver for Linux + * + * Copyright 2011 Gateworks Corporation + * Chris Lang <clang@gateworks.com> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of version 2 of the GNU General Public License + * as published by the Free Software Foundation. + * + */ + +#include <linux/delay.h> +#include <linux/module.h> +#include <linux/dma-mapping.h> +#include <linux/dmapool.h> +#include <linux/etherdevice.h> +#include <linux/interrupt.h> +#include <linux/io.h> +#include <linux/kernel.h> +#include <linux/phy.h> +#include <linux/platform_device.h> +#include <linux/platform_data/cns3xxx.h> +#include <linux/skbuff.h> + +#define DRV_NAME "cns3xxx_eth" + +#define RX_DESCS 256 +#define TX_DESCS 128 +#define TX_DESC_RESERVE 20 + +#define RX_POOL_ALLOC_SIZE (sizeof(struct rx_desc) * RX_DESCS) +#define TX_POOL_ALLOC_SIZE (sizeof(struct tx_desc) * TX_DESCS) +#define REGS_SIZE 336 + +#define RX_BUFFER_ALIGN 64 +#define RX_BUFFER_ALIGN_MASK (~(RX_BUFFER_ALIGN - 1)) + +#define SKB_HEAD_ALIGN (((PAGE_SIZE - NET_SKB_PAD) % RX_BUFFER_ALIGN) + NET_SKB_PAD + NET_IP_ALIGN) +#define RX_SEGMENT_ALLOC_SIZE 2048 +#define RX_SEGMENT_BUFSIZE (SKB_WITH_OVERHEAD(RX_SEGMENT_ALLOC_SIZE)) +#define RX_SEGMENT_MRU (((RX_SEGMENT_BUFSIZE - SKB_HEAD_ALIGN) & RX_BUFFER_ALIGN_MASK) - NET_IP_ALIGN) +#define MAX_MTU 9500 + +#define NAPI_WEIGHT 64 + +/* MDIO Defines */ +#define MDIO_CMD_COMPLETE 0x00008000 +#define MDIO_WRITE_COMMAND 0x00002000 +#define MDIO_READ_COMMAND 0x00004000 +#define MDIO_REG_OFFSET 8 +#define MDIO_VALUE_OFFSET 16 + +/* Descritor Defines */ +#define END_OF_RING 0x40000000 +#define FIRST_SEGMENT 0x20000000 +#define LAST_SEGMENT 0x10000000 +#define FORCE_ROUTE 0x04000000 +#define IP_CHECKSUM 0x00040000 +#define UDP_CHECKSUM 0x00020000 +#define TCP_CHECKSUM 0x00010000 + +/* Port Config Defines */ +#define PORT_BP_ENABLE 0x00020000 +#define PORT_DISABLE 0x00040000 +#define PORT_LEARN_DIS 0x00080000 +#define PORT_BLOCK_STATE 0x00100000 +#define PORT_BLOCK_MODE 0x00200000 + +#define PROMISC_OFFSET 29 + +/* Global Config Defines */ +#define UNKNOWN_VLAN_TO_CPU 0x02000000 +#define ACCEPT_CRC_PACKET 0x00200000 +#define CRC_STRIPPING 0x00100000 + +/* VLAN Config Defines */ +#define NIC_MODE 0x00008000 +#define VLAN_UNAWARE 0x00000001 + +/* DMA AUTO Poll Defines */ +#define TS_POLL_EN 0x00000020 +#define TS_SUSPEND 0x00000010 +#define FS_POLL_EN 0x00000002 +#define FS_SUSPEND 0x00000001 + +/* DMA Ring Control Defines */ +#define QUEUE_THRESHOLD 0x000000f0 +#define CLR_FS_STATE 0x80000000 + +/* Interrupt Status Defines */ +#define MAC0_STATUS_CHANGE 0x00004000 +#define MAC1_STATUS_CHANGE 0x00008000 +#define MAC2_STATUS_CHANGE 0x00010000 +#define MAC0_RX_ERROR 0x00100000 +#define MAC1_RX_ERROR 0x00200000 +#define MAC2_RX_ERROR 0x00400000 + +struct tx_desc +{ + u32 sdp; /* segment data pointer */ + + union { + struct { + u32 sdl:16; /* segment data length */ + u32 tco:1; + u32 uco:1; + u32 ico:1; + u32 rsv_1:3; /* reserve */ + u32 pri:3; + u32 fp:1; /* force priority */ + u32 fr:1; + u32 interrupt:1; + u32 lsd:1; + u32 fsd:1; + u32 eor:1; + u32 cown:1; + }; + u32 config0; + }; + + union { + struct { + u32 ctv:1; + u32 stv:1; + u32 sid:4; + u32 inss:1; + u32 dels:1; + u32 rsv_2:9; + u32 pmap:5; + u32 mark:3; + u32 ewan:1; + u32 fewan:1; + u32 rsv_3:5; + }; + u32 config1; + }; + + union { + struct { + u32 c_vid:12; + u32 c_cfs:1; + u32 c_pri:3; + u32 s_vid:12; + u32 s_dei:1; + u32 s_pri:3; + }; + u32 config2; + }; + + u8 alignment[16]; /* for 32 byte */ +}; + +struct rx_desc +{ + u32 sdp; /* segment data pointer */ + + union { + struct { + u32 sdl:16; /* segment data length */ + u32 l4f:1; + u32 ipf:1; + u32 prot:4; + u32 hr:6; + u32 lsd:1; + u32 fsd:1; + u32 eor:1; + u32 cown:1; + }; + u32 config0; + }; + + union { + struct { + u32 ctv:1; + u32 stv:1; + u32 unv:1; + u32 iwan:1; + u32 exdv:1; + u32 e_wan:1; + u32 rsv_1:2; + u32 sp:3; + u32 crc_err:1; + u32 un_eth:1; + u32 tc:2; + u32 rsv_2:1; + u32 ip_offset:5; + u32 rsv_3:11; + }; + u32 config1; + }; + + union { + struct { + u32 c_vid:12; + u32 c_cfs:1; + u32 c_pri:3; + u32 s_vid:12; + u32 s_dei:1; + u32 s_pri:3; + }; + u32 config2; + }; + + u8 alignment[16]; /* for 32 byte alignment */ +}; + + +struct switch_regs { + u32 phy_control; + u32 phy_auto_addr; + u32 mac_glob_cfg; + u32 mac_cfg[4]; + u32 mac_pri_ctrl[5], __res; + u32 etype[2]; + u32 udp_range[4]; + u32 prio_etype_udp; + u32 prio_ipdscp[8]; + u32 tc_ctrl; + u32 rate_ctrl; + u32 fc_glob_thrs; + u32 fc_port_thrs; + u32 mc_fc_glob_thrs; + u32 dc_glob_thrs; + u32 arl_vlan_cmd; + u32 arl_ctrl[3]; + u32 vlan_cfg; + u32 pvid[2]; + u32 vlan_ctrl[3]; + u32 session_id[8]; + u32 intr_stat; + u32 intr_mask; + u32 sram_test; + u32 mem_queue; + u32 farl_ctrl; + u32 fc_input_thrs, __res1[2]; + u32 clk_skew_ctrl; + u32 mac_glob_cfg_ext, __res2[2]; + u32 dma_ring_ctrl; + u32 dma_auto_poll_cfg; + u32 delay_intr_cfg, __res3; + u32 ts_dma_ctrl0; + u32 ts_desc_ptr0; + u32 ts_desc_base_addr0, __res4; + u32 fs_dma_ctrl0; + u32 fs_desc_ptr0; + u32 fs_desc_base_addr0, __res5; + u32 ts_dma_ctrl1; + u32 ts_desc_ptr1; + u32 ts_desc_base_addr1, __res6; + u32 fs_dma_ctrl1; + u32 fs_desc_ptr1; + u32 fs_desc_base_addr1; + u32 __res7[109]; + u32 mac_counter0[13]; +}; + +struct _tx_ring { + struct tx_desc *desc; + dma_addr_t phys_addr; + struct tx_desc *cur_addr; + struct sk_buff *buff_tab[TX_DESCS]; + unsigned int phys_tab[TX_DESCS]; + u32 free_index; + u32 count_index; + u32 cur_index; + int num_used; + int num_count; + bool stopped; +}; + +struct _rx_ring { + struct rx_desc *desc; + dma_addr_t phys_addr; + struct rx_desc *cur_addr; + void *buff_tab[RX_DESCS]; + unsigned int phys_tab[RX_DESCS]; + u32 cur_index; + u32 alloc_index; + int alloc_count; +}; + +struct sw { + struct switch_regs __iomem *regs; + struct napi_struct napi; + struct cns3xxx_plat_info *plat; + struct _tx_ring tx_ring; + struct _rx_ring rx_ring; + struct sk_buff *frag_first; + struct sk_buff *frag_last; + struct device *dev; + int rx_irq; + int stat_irq; +}; + +struct port { + struct net_device *netdev; + struct phy_device *phydev; + struct sw *sw; + int id; /* logical port ID */ + int speed, duplex; +}; + +static spinlock_t mdio_lock; +static DEFINE_SPINLOCK(tx_lock); +static struct switch_regs __iomem *mdio_regs; /* mdio command and status only */ +struct mii_bus *mdio_bus; +static int ports_open; +static struct port *switch_port_tab[4]; +static struct dma_pool *rx_dma_pool; +static struct dma_pool *tx_dma_pool; +struct net_device *napi_dev; + +static int cns3xxx_mdio_cmd(struct mii_bus *bus, int phy_id, int location, + int write, u16 cmd) +{ + int cycles = 0; + u32 temp = 0; + + temp = __raw_readl(&mdio_regs->phy_control); + temp |= MDIO_CMD_COMPLETE; + __raw_writel(temp, &mdio_regs->phy_control); + udelay(10); + + if (write) { + temp = (cmd << MDIO_VALUE_OFFSET); + temp |= MDIO_WRITE_COMMAND; + } else { + temp = MDIO_READ_COMMAND; + } + temp |= ((location & 0x1f) << MDIO_REG_OFFSET); + temp |= (phy_id & 0x1f); + + __raw_writel(temp, &mdio_regs->phy_control); + + while (((__raw_readl(&mdio_regs->phy_control) & MDIO_CMD_COMPLETE) == 0) + && cycles < 5000) { + udelay(1); + cycles++; + } + + if (cycles == 5000) { + printk(KERN_ERR "%s #%i: MII transaction failed\n", bus->name, + phy_id); + return -1; + } + + temp = __raw_readl(&mdio_regs->phy_control); + temp |= MDIO_CMD_COMPLETE; + __raw_writel(temp, &mdio_regs->phy_control); + + if (write) + return 0; + + return ((temp >> MDIO_VALUE_OFFSET) & 0xFFFF); +} + +static int cns3xxx_mdio_read(struct mii_bus *bus, int phy_id, int location) +{ + unsigned long flags; + int ret; + + spin_lock_irqsave(&mdio_lock, flags); + ret = cns3xxx_mdio_cmd(bus, phy_id, location, 0, 0); + spin_unlock_irqrestore(&mdio_lock, flags); + return ret; +} + +static int cns3xxx_mdio_write(struct mii_bus *bus, int phy_id, int location, + u16 val) +{ + unsigned long flags; + int ret; + + spin_lock_irqsave(&mdio_lock, flags); + ret = cns3xxx_mdio_cmd(bus, phy_id, location, 1, val); + spin_unlock_irqrestore(&mdio_lock, flags); + return ret; +} + +static int cns3xxx_mdio_register(void __iomem *base) +{ + int err; + + if (!(mdio_bus = mdiobus_alloc())) + return -ENOMEM; + + mdio_regs = base; + + spin_lock_init(&mdio_lock); + mdio_bus->name = "CNS3xxx MII Bus"; + mdio_bus->read = &cns3xxx_mdio_read; + mdio_bus->write = &cns3xxx_mdio_write; + strcpy(mdio_bus->id, "0"); + + if ((err = mdiobus_register(mdio_bus))) + mdiobus_free(mdio_bus); + return err; +} + +static void cns3xxx_mdio_remove(void) +{ + mdiobus_unregister(mdio_bus); + mdiobus_free(mdio_bus); +} + +static void enable_tx_dma(struct sw *sw) +{ + __raw_writel(0x1, &sw->regs->ts_dma_ctrl0); +} + +static void enable_rx_dma(struct sw *sw) +{ + __raw_writel(0x1, &sw->regs->fs_dma_ctrl0); +} + +static void cns3xxx_adjust_link(struct net_device *dev) +{ + struct port *port = netdev_priv(dev); + struct phy_device *phydev = port->phydev; + + if (!phydev->link) { + if (port->speed) { + port->speed = 0; + printk(KERN_INFO "%s: link down\n", dev->name); + } + return; + } + + if (port->speed == phydev->speed && port->duplex == phydev->duplex) + return; + + port->speed = phydev->speed; + port->duplex = phydev->duplex; + + printk(KERN_INFO "%s: link up, speed %u Mb/s, %s duplex\n", + dev->name, port->speed, port->duplex ? "full" : "half"); +} + +static void eth_schedule_poll(struct sw *sw) +{ + if (unlikely(!napi_schedule_prep(&sw->napi))) + return; + + disable_irq_nosync(sw->rx_irq); + __napi_schedule(&sw->napi); +} + +irqreturn_t eth_rx_irq(int irq, void *pdev) +{ + struct net_device *dev = pdev; + struct sw *sw = netdev_priv(dev); + eth_schedule_poll(sw); + return (IRQ_HANDLED); +} + +irqreturn_t eth_stat_irq(int irq, void *pdev) +{ + struct net_device *dev = pdev; + struct sw *sw = netdev_priv(dev); + u32 cfg; + u32 stat = __raw_readl(&sw->regs->intr_stat); + __raw_writel(0xffffffff, &sw->regs->intr_stat); + + if (stat & MAC2_RX_ERROR) + switch_port_tab[3]->netdev->stats.rx_dropped++; + if (stat & MAC1_RX_ERROR) + switch_port_tab[1]->netdev->stats.rx_dropped++; + if (stat & MAC0_RX_ERROR) + switch_port_tab[0]->netdev->stats.rx_dropped++; + + if (stat & MAC0_STATUS_CHANGE) { + cfg = __raw_readl(&sw->regs->mac_cfg[0]); + switch_port_tab[0]->phydev->link = (cfg & 0x1); + switch_port_tab[0]->phydev->duplex = ((cfg >> 4) & 0x1); + if (((cfg >> 2) & 0x3) == 2) + switch_port_tab[0]->phydev->speed = 1000; + else if (((cfg >> 2) & 0x3) == 1) + switch_port_tab[0]->phydev->speed = 100; + else + switch_port_tab[0]->phydev->speed = 10; + cns3xxx_adjust_link(switch_port_tab[0]->netdev); + } + + if (stat & MAC1_STATUS_CHANGE) { + cfg = __raw_readl(&sw->regs->mac_cfg[1]); + switch_port_tab[1]->phydev->link = (cfg & 0x1); + switch_port_tab[1]->phydev->duplex = ((cfg >> 4) & 0x1); + if (((cfg >> 2) & 0x3) == 2) + switch_port_tab[1]->phydev->speed = 1000; + else if (((cfg >> 2) & 0x3) == 1) + switch_port_tab[1]->phydev->speed = 100; + else + switch_port_tab[1]->phydev->speed = 10; + cns3xxx_adjust_link(switch_port_tab[1]->netdev); + } + + if (stat & MAC2_STATUS_CHANGE) { + cfg = __raw_readl(&sw->regs->mac_cfg[3]); + switch_port_tab[3]->phydev->link = (cfg & 0x1); + switch_port_tab[3]->phydev->duplex = ((cfg >> 4) & 0x1); + if (((cfg >> 2) & 0x3) == 2) + switch_port_tab[3]->phydev->speed = 1000; + else if (((cfg >> 2) & 0x3) == 1) + switch_port_tab[3]->phydev->speed = 100; + else + switch_port_tab[3]->phydev->speed = 10; + cns3xxx_adjust_link(switch_port_tab[3]->netdev); + } + + return (IRQ_HANDLED); +} + + +static void cns3xxx_alloc_rx_buf(struct sw *sw, int received) +{ + struct _rx_ring *rx_ring = &sw->rx_ring; + unsigned int i = rx_ring->alloc_index; + struct rx_desc *desc = &(rx_ring)->desc[i]; + void *buf; + unsigned int phys; + + for (received += rx_ring->alloc_count; received > 0; received--) { + buf = kmalloc(RX_SEGMENT_ALLOC_SIZE, GFP_ATOMIC); + if (!buf) + break; + + phys = dma_map_single(sw->dev, buf + SKB_HEAD_ALIGN, + RX_SEGMENT_MRU, DMA_FROM_DEVICE); + if (dma_mapping_error(sw->dev, phys)) { + kfree(buf); + break; + } + + desc->sdl = RX_SEGMENT_MRU; + desc->sdp = phys; + + wmb(); + + /* put the new buffer on RX-free queue */ + rx_ring->buff_tab[i] = buf; + rx_ring->phys_tab[i] = phys; + if (i == RX_DESCS - 1) { + i = 0; + desc->config0 = END_OF_RING | FIRST_SEGMENT | + LAST_SEGMENT | RX_SEGMENT_MRU; + desc = &(rx_ring)->desc[i]; + } else { + desc->config0 = FIRST_SEGMENT | LAST_SEGMENT | + RX_SEGMENT_MRU; + i++; + desc++; + } + } + + rx_ring->alloc_count = received; + rx_ring->alloc_index = i; +} + +static void eth_check_num_used(struct _tx_ring *tx_ring) +{ + bool stop = false; + int i; + + if (tx_ring->num_used >= TX_DESCS - TX_DESC_RESERVE) + stop = true; + + if (tx_ring->stopped == stop) + return; + + tx_ring->stopped = stop; + for (i = 0; i < 4; i++) { + struct port *port = switch_port_tab[i]; + struct net_device *dev; + + if (!port) + continue; + + dev = port->netdev; + if (stop) + netif_stop_queue(dev); + else + netif_wake_queue(dev); + } +} + +static void eth_complete_tx(struct sw *sw) +{ + struct _tx_ring *tx_ring = &sw->tx_ring; + struct tx_desc *desc; + int i; + int index; + int num_used = tx_ring->num_used; + struct sk_buff *skb; + + index = tx_ring->free_index; + desc = &(tx_ring)->desc[index]; + for (i = 0; i < num_used; i++) { + if (desc->cown) { + skb = tx_ring->buff_tab[index]; + tx_ring->buff_tab[index] = 0; + if (skb) + dev_kfree_skb_any(skb); + dma_unmap_single(sw->dev, tx_ring->phys_tab[index], + desc->sdl, DMA_TO_DEVICE); + if (++index == TX_DESCS) { + index = 0; + desc = &(tx_ring)->desc[index]; + } else { + desc++; + } + } else { + break; + } + } + tx_ring->free_index = index; + tx_ring->num_used -= i; + eth_check_num_used(tx_ring); +} + +static int eth_poll(struct napi_struct *napi, int budget) +{ + struct sw *sw = container_of(napi, struct sw, napi); + struct _rx_ring *rx_ring = &sw->rx_ring; + int received = 0; + unsigned int length; + unsigned int i = rx_ring->cur_index; + struct rx_desc *desc = &(rx_ring)->desc[i]; + unsigned int alloc_count = rx_ring->alloc_count; + + while (desc->cown && alloc_count + received < RX_DESCS - 1) { + struct sk_buff *skb; + int reserve = SKB_HEAD_ALIGN; + + if (received >= budget) + break; + + /* process received frame */ + dma_unmap_single(sw->dev, rx_ring->phys_tab[i], + RX_SEGMENT_MRU, DMA_FROM_DEVICE); + + skb = build_skb(rx_ring->buff_tab[i], 0); + if (!skb) + break; + + skb->dev = switch_port_tab[desc->sp]->netdev; + + length = desc->sdl; + if (desc->fsd && !desc->lsd) + length = RX_SEGMENT_MRU; + + if (!desc->fsd) { + reserve -= NET_IP_ALIGN; + if (!desc->lsd) + length += NET_IP_ALIGN; + } + + skb_reserve(skb, reserve); + skb_put(skb, length); + + if (!sw->frag_first) + sw->frag_first = skb; + else { + if (sw->frag_first == sw->frag_last) + skb_frag_add_head(sw->frag_first, skb); + else + sw->frag_last->next = skb; + sw->frag_first->len += skb->len; + sw->frag_first->data_len += skb->len; + sw->frag_first->truesize += skb->truesize; + } + sw->frag_last = skb; + + if (desc->lsd) { + struct net_device *dev; + + skb = sw->frag_first; + dev = skb->dev; + skb->protocol = eth_type_trans(skb, dev); + + dev->stats.rx_packets++; + dev->stats.rx_bytes += skb->len; + + /* RX Hardware checksum offload */ + skb->ip_summed = CHECKSUM_NONE; + switch (desc->prot) { + case 1: + case 2: + case 5: + case 6: + case 13: + case 14: + if (!desc->l4f) { + skb->ip_summed = CHECKSUM_UNNECESSARY; + napi_gro_receive(napi, skb); + break; + } + /* fall through */ + default: + netif_receive_skb(skb); + break; + } + + sw->frag_first = NULL; + sw->frag_last = NULL; + } + + received++; + if (++i == RX_DESCS) { + i = 0; + desc = &(rx_ring)->desc[i]; + } else { + desc++; + } + } + + rx_ring->cur_index = i; + if (!received) { + napi_complete(napi); + enable_irq(sw->rx_irq); + + /* if rx descriptors are full schedule another poll */ + if (rx_ring->desc[(i-1) & (RX_DESCS-1)].cown) + eth_schedule_poll(sw); + } + + spin_lock_bh(&tx_lock); + eth_complete_tx(sw); + spin_unlock_bh(&tx_lock); + + cns3xxx_alloc_rx_buf(sw, received); + + wmb(); + enable_rx_dma(sw); + + return received; +} + +static void eth_set_desc(struct sw *sw, struct _tx_ring *tx_ring, int index, + int index_last, void *data, int len, u32 config0, + u32 pmap) +{ + struct tx_desc *tx_desc = &(tx_ring)->desc[index]; + unsigned int phys; + + phys = dma_map_single(sw->dev, data, len, DMA_TO_DEVICE); + tx_desc->sdp = phys; + tx_desc->pmap = pmap; + tx_ring->phys_tab[index] = phys; + + config0 |= len; + if (index == TX_DESCS - 1) + config0 |= END_OF_RING; + if (index == index_last) + config0 |= LAST_SEGMENT; + + wmb(); + tx_desc->config0 = config0; +} + +static int eth_xmit(struct sk_buff *skb, struct net_device *dev) +{ + struct port *port = netdev_priv(dev); + struct sw *sw = port->sw; + struct _tx_ring *tx_ring = &sw->tx_ring; + struct sk_buff *skb1; + char pmap = (1 << port->id); + int nr_frags = skb_shinfo(skb)->nr_frags; + int nr_desc = nr_frags; + int index0, index, index_last; + int len0; + unsigned int i; + u32 config0; + + if (pmap == 8) + pmap = (1 << 4); + + skb_walk_frags(skb, skb1) + nr_desc++; + + eth_schedule_poll(sw); + spin_lock_bh(&tx_lock); + if ((tx_ring->num_used + nr_desc + 1) >= TX_DESCS) { + spin_unlock_bh(&tx_lock); + return NETDEV_TX_BUSY; + } + + index = index0 = tx_ring->cur_index; + index_last = (index0 + nr_desc) % TX_DESCS; + tx_ring->cur_index = (index_last + 1) % TX_DESCS; + + spin_unlock_bh(&tx_lock); + + config0 = FORCE_ROUTE; + if (skb->ip_summed == CHECKSUM_PARTIAL) + config0 |= UDP_CHECKSUM | TCP_CHECKSUM; + + len0 = skb->len; + + /* fragments */ + for (i = 0; i < nr_frags; i++) { + struct skb_frag_struct *frag; + void *addr; + + index = (index + 1) % TX_DESCS; + + frag = &skb_shinfo(skb)->frags[i]; + addr = page_address(skb_frag_page(frag)) + frag->page_offset; + + eth_set_desc(sw, tx_ring, index, index_last, addr, frag->size, + config0, pmap); + } + + if (nr_frags) + len0 = skb->len - skb->data_len; + + skb_walk_frags(skb, skb1) { + index = (index + 1) % TX_DESCS; + len0 -= skb1->len; + + eth_set_desc(sw, tx_ring, index, index_last, skb1->data, + skb1->len, config0, pmap); + } + + tx_ring->buff_tab[index0] = skb; + eth_set_desc(sw, tx_ring, index0, index_last, skb->data, len0, + config0 | FIRST_SEGMENT, pmap); + + wmb(); + + spin_lock(&tx_lock); + tx_ring->num_used += nr_desc + 1; + spin_unlock(&tx_lock); + + dev->stats.tx_packets++; + dev->stats.tx_bytes += skb->len; + + enable_tx_dma(sw); + + return NETDEV_TX_OK; +} + +static int eth_ioctl(struct net_device *dev, struct ifreq *req, int cmd) +{ + struct port *port = netdev_priv(dev); + + if (!netif_running(dev)) + return -EINVAL; + return phy_mii_ioctl(port->phydev, req, cmd); +} + +/* ethtool support */ + +static void cns3xxx_get_drvinfo(struct net_device *dev, + struct ethtool_drvinfo *info) +{ + strcpy(info->driver, DRV_NAME); + strcpy(info->bus_info, "internal"); +} + +static int cns3xxx_get_settings(struct net_device *dev, struct ethtool_cmd *cmd) +{ + struct port *port = netdev_priv(dev); + return phy_ethtool_gset(port->phydev, cmd); +} + +static int cns3xxx_set_settings(struct net_device *dev, struct ethtool_cmd *cmd) +{ + struct port *port = netdev_priv(dev); + return phy_ethtool_sset(port->phydev, cmd); +} + +static int cns3xxx_nway_reset(struct net_device *dev) +{ + struct port *port = netdev_priv(dev); + return phy_start_aneg(port->phydev); +} + +static struct ethtool_ops cns3xxx_ethtool_ops = { + .get_drvinfo = cns3xxx_get_drvinfo, + .get_settings = cns3xxx_get_settings, + .set_settings = cns3xxx_set_settings, + .nway_reset = cns3xxx_nway_reset, + .get_link = ethtool_op_get_link, +}; + + +static int init_rings(struct sw *sw) +{ + int i; + struct _rx_ring *rx_ring = &sw->rx_ring; + struct _tx_ring *tx_ring = &sw->tx_ring; + + __raw_writel(0, &sw->regs->fs_dma_ctrl0); + __raw_writel(TS_SUSPEND | FS_SUSPEND, &sw->regs->dma_auto_poll_cfg); + __raw_writel(QUEUE_THRESHOLD, &sw->regs->dma_ring_ctrl); + __raw_writel(CLR_FS_STATE | QUEUE_THRESHOLD, &sw->regs->dma_ring_ctrl); + + __raw_writel(QUEUE_THRESHOLD, &sw->regs->dma_ring_ctrl); + + if (!(rx_dma_pool = dma_pool_create(DRV_NAME, sw->dev, + RX_POOL_ALLOC_SIZE, 32, 0))) + return -ENOMEM; + + if (!(rx_ring->desc = dma_pool_alloc(rx_dma_pool, GFP_KERNEL, + &rx_ring->phys_addr))) + return -ENOMEM; + memset(rx_ring->desc, 0, RX_POOL_ALLOC_SIZE); + + /* Setup RX buffers */ + for (i = 0; i < RX_DESCS; i++) { + struct rx_desc *desc = &(rx_ring)->desc[i]; + void *buf; + + buf = kzalloc(RX_SEGMENT_ALLOC_SIZE, GFP_KERNEL); + if (!buf) + return -ENOMEM; + + desc->sdl = RX_SEGMENT_MRU; + if (i == (RX_DESCS - 1)) + desc->eor = 1; + desc->fsd = 1; + desc->lsd = 1; + + desc->sdp = dma_map_single(sw->dev, buf + SKB_HEAD_ALIGN, + RX_SEGMENT_MRU, DMA_FROM_DEVICE); + if (dma_mapping_error(sw->dev, desc->sdp)) + return -EIO; + + rx_ring->buff_tab[i] = buf; + rx_ring->phys_tab[i] = desc->sdp; + desc->cown = 0; + } + __raw_writel(rx_ring->phys_addr, &sw->regs->fs_desc_ptr0); + __raw_writel(rx_ring->phys_addr, &sw->regs->fs_desc_base_addr0); + + if (!(tx_dma_pool = dma_pool_create(DRV_NAME, sw->dev, + TX_POOL_ALLOC_SIZE, 32, 0))) + return -ENOMEM; + + if (!(tx_ring->desc = dma_pool_alloc(tx_dma_pool, GFP_KERNEL, + &tx_ring->phys_addr))) + return -ENOMEM; + memset(tx_ring->desc, 0, TX_POOL_ALLOC_SIZE); + + /* Setup TX buffers */ + for (i = 0; i < TX_DESCS; i++) { + struct tx_desc *desc = &(tx_ring)->desc[i]; + tx_ring->buff_tab[i] = 0; + + if (i == (TX_DESCS - 1)) + desc->eor = 1; + desc->cown = 1; + } + __raw_writel(tx_ring->phys_addr, &sw->regs->ts_desc_ptr0); + __raw_writel(tx_ring->phys_addr, &sw->regs->ts_desc_base_addr0); + + return 0; +} + +static void destroy_rings(struct sw *sw) +{ + int i; + if (sw->rx_ring.desc) { + for (i = 0; i < RX_DESCS; i++) { + struct _rx_ring *rx_ring = &sw->rx_ring; + struct rx_desc *desc = &(rx_ring)->desc[i]; + struct sk_buff *skb = sw->rx_ring.buff_tab[i]; + + if (!skb) + continue; + + dma_unmap_single(sw->dev, desc->sdp, RX_SEGMENT_MRU, + DMA_FROM_DEVICE); + dev_kfree_skb(skb); + } + dma_pool_free(rx_dma_pool, sw->rx_ring.desc, sw->rx_ring.phys_addr); + dma_pool_destroy(rx_dma_pool); + rx_dma_pool = 0; + sw->rx_ring.desc = 0; + } + if (sw->tx_ring.desc) { + for (i = 0; i < TX_DESCS; i++) { + struct _tx_ring *tx_ring = &sw->tx_ring; + struct tx_desc *desc = &(tx_ring)->desc[i]; + struct sk_buff *skb = sw->tx_ring.buff_tab[i]; + if (skb) { + dma_unmap_single(sw->dev, desc->sdp, + skb->len, DMA_TO_DEVICE); + dev_kfree_skb(skb); + } + } + dma_pool_free(tx_dma_pool, sw->tx_ring.desc, sw->tx_ring.phys_addr); + dma_pool_destroy(tx_dma_pool); + tx_dma_pool = 0; + sw->tx_ring.desc = 0; + } +} + +static int eth_open(struct net_device *dev) +{ + struct port *port = netdev_priv(dev); + struct sw *sw = port->sw; + u32 temp; + + port->speed = 0; /* force "link up" message */ + phy_start(port->phydev); + + netif_start_queue(dev); + + if (!ports_open) { + request_irq(sw->rx_irq, eth_rx_irq, IRQF_SHARED, "gig_switch", napi_dev); + request_irq(sw->stat_irq, eth_stat_irq, IRQF_SHARED, "gig_stat", napi_dev); + napi_enable(&sw->napi); + netif_start_queue(napi_dev); + + __raw_writel(~(MAC0_STATUS_CHANGE | MAC1_STATUS_CHANGE | MAC2_STATUS_CHANGE | + MAC0_RX_ERROR | MAC1_RX_ERROR | MAC2_RX_ERROR), &sw->regs->intr_mask); + + temp = __raw_readl(&sw->regs->mac_cfg[2]); + temp &= ~(PORT_DISABLE); + __raw_writel(temp, &sw->regs->mac_cfg[2]); + + temp = __raw_readl(&sw->regs->dma_auto_poll_cfg); + temp &= ~(TS_SUSPEND | FS_SUSPEND); + __raw_writel(temp, &sw->regs->dma_auto_poll_cfg); + + enable_rx_dma(sw); + } + temp = __raw_readl(&sw->regs->mac_cfg[port->id]); + temp &= ~(PORT_DISABLE); + __raw_writel(temp, &sw->regs->mac_cfg[port->id]); + + ports_open++; + netif_carrier_on(dev); + + return 0; +} + +static int eth_close(struct net_device *dev) +{ + struct port *port = netdev_priv(dev); + struct sw *sw = port->sw; + u32 temp; + + ports_open--; + + temp = __raw_readl(&sw->regs->mac_cfg[port->id]); + temp |= (PORT_DISABLE); + __raw_writel(temp, &sw->regs->mac_cfg[port->id]); + + netif_stop_queue(dev); + + phy_stop(port->phydev); + + if (!ports_open) { + disable_irq(sw->rx_irq); + free_irq(sw->rx_irq, napi_dev); + disable_irq(sw->stat_irq); + free_irq(sw->stat_irq, napi_dev); + napi_disable(&sw->napi); + netif_stop_queue(napi_dev); + temp = __raw_readl(&sw->regs->mac_cfg[2]); + temp |= (PORT_DISABLE); + __raw_writel(temp, &sw->regs->mac_cfg[2]); + + __raw_writel(TS_SUSPEND | FS_SUSPEND, + &sw->regs->dma_auto_poll_cfg); + } + + netif_carrier_off(dev); + return 0; +} + +static void eth_rx_mode(struct net_device *dev) +{ + struct port *port = netdev_priv(dev); + struct sw *sw = port->sw; + u32 temp; + + temp = __raw_readl(&sw->regs->mac_glob_cfg); + + if (dev->flags & IFF_PROMISC) { + if (port->id == 3) + temp |= ((1 << 2) << PROMISC_OFFSET); + else + temp |= ((1 << port->id) << PROMISC_OFFSET); + } else { + if (port->id == 3) + temp &= ~((1 << 2) << PROMISC_OFFSET); + else + temp &= ~((1 << port->id) << PROMISC_OFFSET); + } + __raw_writel(temp, &sw->regs->mac_glob_cfg); +} + +static int eth_set_mac(struct net_device *netdev, void *p) +{ + struct port *port = netdev_priv(netdev); + struct sw *sw = port->sw; + struct sockaddr *addr = p; + u32 cycles = 0; + + if (!is_valid_ether_addr(addr->sa_data)) + return -EADDRNOTAVAIL; + + /* Invalidate old ARL Entry */ + if (port->id == 3) + __raw_writel((port->id << 16) | (0x4 << 9), &sw->regs->arl_ctrl[0]); + else + __raw_writel(((port->id + 1) << 16) | (0x4 << 9), &sw->regs->arl_ctrl[0]); + __raw_writel( ((netdev->dev_addr[0] << 24) | (netdev->dev_addr[1] << 16) | + (netdev->dev_addr[2] << 8) | (netdev->dev_addr[3])), + &sw->regs->arl_ctrl[1]); + + __raw_writel( ((netdev->dev_addr[4] << 24) | (netdev->dev_addr[5] << 16) | + (1 << 1)), + &sw->regs->arl_ctrl[2]); + __raw_writel((1 << 19), &sw->regs->arl_vlan_cmd); + + while (((__raw_readl(&sw->regs->arl_vlan_cmd) & (1 << 21)) == 0) + && cycles < 5000) { + udelay(1); + cycles++; + } + + cycles = 0; + memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len); + + if (port->id == 3) + __raw_writel((port->id << 16) | (0x4 << 9), &sw->regs->arl_ctrl[0]); + else + __raw_writel(((port->id + 1) << 16) | (0x4 << 9), &sw->regs->arl_ctrl[0]); + __raw_writel( ((addr->sa_data[0] << 24) | (addr->sa_data[1] << 16) | + (addr->sa_data[2] << 8) | (addr->sa_data[3])), + &sw->regs->arl_ctrl[1]); + + __raw_writel( ((addr->sa_data[4] << 24) | (addr->sa_data[5] << 16) | + (7 << 4) | (1 << 1)), &sw->regs->arl_ctrl[2]); + __raw_writel((1 << 19), &sw->regs->arl_vlan_cmd); + + while (((__raw_readl(&sw->regs->arl_vlan_cmd) & (1 << 21)) == 0) + && cycles < 5000) { + udelay(1); + cycles++; + } + return 0; +} + +static int cns3xxx_change_mtu(struct net_device *dev, int new_mtu) +{ + if (new_mtu > MAX_MTU) + return -EINVAL; + + dev->mtu = new_mtu; + return 0; +} + +static const struct net_device_ops cns3xxx_netdev_ops = { + .ndo_open = eth_open, + .ndo_stop = eth_close, + .ndo_start_xmit = eth_xmit, + .ndo_set_rx_mode = eth_rx_mode, + .ndo_do_ioctl = eth_ioctl, + .ndo_change_mtu = cns3xxx_change_mtu, + .ndo_set_mac_address = eth_set_mac, + .ndo_validate_addr = eth_validate_addr, +}; + +static int eth_init_one(struct platform_device *pdev) +{ + int i; + struct port *port; + struct sw *sw; + struct net_device *dev; + struct cns3xxx_plat_info *plat = pdev->dev.platform_data; + char phy_id[MII_BUS_ID_SIZE + 3]; + int err; + u32 temp; + struct resource *res; + void __iomem *regs; + + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + regs = devm_ioremap_resource(&pdev->dev, res); + if (IS_ERR(regs)) + return PTR_ERR(regs); + + err = cns3xxx_mdio_register(regs); + if (err) + return err; + + if (!(napi_dev = alloc_etherdev(sizeof(struct sw)))) { + err = -ENOMEM; + goto err_remove_mdio; + } + + strcpy(napi_dev->name, "switch%d"); + napi_dev->features = NETIF_F_IP_CSUM | NETIF_F_SG | NETIF_F_FRAGLIST; + + SET_NETDEV_DEV(napi_dev, &pdev->dev); + sw = netdev_priv(napi_dev); + memset(sw, 0, sizeof(struct sw)); + sw->regs = regs; + sw->dev = &pdev->dev; + + sw->rx_irq = platform_get_irq_byname(pdev, "eth_rx"); + sw->stat_irq = platform_get_irq_byname(pdev, "eth_stat"); + + temp = __raw_readl(&sw->regs->phy_auto_addr); + temp |= (3 << 30); /* maximum frame length: 9600 bytes */ + __raw_writel(temp, &sw->regs->phy_auto_addr); + + for (i = 0; i < 4; i++) { + temp = __raw_readl(&sw->regs->mac_cfg[i]); + temp |= (PORT_DISABLE); + __raw_writel(temp, &sw->regs->mac_cfg[i]); + } + + temp = PORT_DISABLE; + __raw_writel(temp, &sw->regs->mac_cfg[2]); + + temp = __raw_readl(&sw->regs->vlan_cfg); + temp |= NIC_MODE | VLAN_UNAWARE; + __raw_writel(temp, &sw->regs->vlan_cfg); + + __raw_writel(UNKNOWN_VLAN_TO_CPU | + CRC_STRIPPING, &sw->regs->mac_glob_cfg); + + if ((err = init_rings(sw)) != 0) { + destroy_rings(sw); + err = -ENOMEM; + goto err_free; + } + platform_set_drvdata(pdev, napi_dev); + + netif_napi_add(napi_dev, &sw->napi, eth_poll, NAPI_WEIGHT); + + for (i = 0; i < 3; i++) { + if (!(plat->ports & (1 << i))) { + continue; + } + + if (!(dev = alloc_etherdev(sizeof(struct port)))) { + goto free_ports; + } + + port = netdev_priv(dev); + port->netdev = dev; + if (i == 2) + port->id = 3; + else + port->id = i; + port->sw = sw; + + temp = __raw_readl(&sw->regs->mac_cfg[port->id]); + temp |= (PORT_DISABLE | PORT_BLOCK_STATE | PORT_LEARN_DIS); + __raw_writel(temp, &sw->regs->mac_cfg[port->id]); + + SET_NETDEV_DEV(dev, &pdev->dev); + dev->netdev_ops = &cns3xxx_netdev_ops; + dev->ethtool_ops = &cns3xxx_ethtool_ops; + dev->tx_queue_len = 1000; + dev->features = NETIF_F_IP_CSUM | NETIF_F_SG | NETIF_F_FRAGLIST; + + switch_port_tab[port->id] = port; + memcpy(dev->dev_addr, &plat->hwaddr[i], ETH_ALEN); + + snprintf(phy_id, MII_BUS_ID_SIZE + 3, PHY_ID_FMT, "0", plat->phy[i]); + port->phydev = phy_connect(dev, phy_id, &cns3xxx_adjust_link, + PHY_INTERFACE_MODE_RGMII); + if ((err = IS_ERR(port->phydev))) { + switch_port_tab[port->id] = 0; + free_netdev(dev); + goto free_ports; + } + + port->phydev->irq = PHY_IGNORE_INTERRUPT; + + if ((err = register_netdev(dev))) { + phy_disconnect(port->phydev); + switch_port_tab[port->id] = 0; + free_netdev(dev); + goto free_ports; + } + + printk(KERN_INFO "%s: RGMII PHY %i on cns3xxx Switch\n", dev->name, plat->phy[i]); + netif_carrier_off(dev); + dev = 0; + } + + return 0; + +free_ports: + err = -ENOMEM; + for (--i; i >= 0; i--) { + if (switch_port_tab[i]) { + port = switch_port_tab[i]; + dev = port->netdev; + unregister_netdev(dev); + phy_disconnect(port->phydev); + switch_port_tab[i] = 0; + free_netdev(dev); + } + } +err_free: + free_netdev(napi_dev); +err_remove_mdio: + cns3xxx_mdio_remove(); + return err; +} + +static int eth_remove_one(struct platform_device *pdev) +{ + struct net_device *dev = platform_get_drvdata(pdev); + struct sw *sw = netdev_priv(dev); + int i; + destroy_rings(sw); + + for (i = 3; i >= 0; i--) { + if (switch_port_tab[i]) { + struct port *port = switch_port_tab[i]; + struct net_device *dev = port->netdev; + unregister_netdev(dev); + phy_disconnect(port->phydev); + switch_port_tab[i] = 0; + free_netdev(dev); + } + } + + free_netdev(napi_dev); + cns3xxx_mdio_remove(); + + return 0; +} + +static struct platform_driver cns3xxx_eth_driver = { + .driver.name = DRV_NAME, + .probe = eth_init_one, + .remove = eth_remove_one, +}; + +static int __init eth_init_module(void) +{ + return platform_driver_register(&cns3xxx_eth_driver); +} + +static void __exit eth_cleanup_module(void) +{ + platform_driver_unregister(&cns3xxx_eth_driver); +} + +module_init(eth_init_module); +module_exit(eth_cleanup_module); + +MODULE_AUTHOR("Chris Lang"); +MODULE_DESCRIPTION("Cavium CNS3xxx Ethernet driver"); +MODULE_LICENSE("GPL v2"); +MODULE_ALIAS("platform:cns3xxx_eth"); diff --git a/target/linux/cns3xxx/files/drivers/spi/spi-cns3xxx.c b/target/linux/cns3xxx/files/drivers/spi/spi-cns3xxx.c new file mode 100644 index 0000000..6301986 --- /dev/null +++ b/target/linux/cns3xxx/files/drivers/spi/spi-cns3xxx.c @@ -0,0 +1,448 @@ +/******************************************************************************* + * + * CNS3XXX SPI controller driver (master mode only) + * + * Copyright (c) 2008 Cavium Networks + * Copyright 2011 Gateworks Corporation + * Chris Lang <clang@gateworks.com> + * + * This file 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. + * + * This file is distributed in the hope that it will be useful, + * but AS-IS and WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, TITLE, or + * NONINFRINGEMENT. See the GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this file; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA or + * visit http://www.gnu.org/licenses/. + * + * This file may also be available under a different license from Cavium. + * Contact Cavium Networks for more information + * + ******************************************************************************/ + +#include <linux/init.h> +#include <linux/spinlock.h> +#include <linux/workqueue.h> +#include <linux/interrupt.h> +#include <linux/delay.h> +#include <linux/errno.h> +#include <linux/err.h> +#include <linux/clk.h> +#include <linux/platform_device.h> + +#include <linux/spi/spi.h> +#include <linux/spi/spi_bitbang.h> +#include <linux/mtd/partitions.h> +#include <linux/dma-mapping.h> +#include <linux/slab.h> + +#include <asm/io.h> +#include <asm/memory.h> +#include <asm/dma.h> +#include <asm/delay.h> +#include <linux/module.h> + +/* + * define access macros + */ +#define SPI_MEM_MAP_VALUE(reg_offset) (*((u32 volatile *)(hw->base + reg_offset))) + +#define SPI_CONFIGURATION_REG SPI_MEM_MAP_VALUE(0x00) +#define SPI_SERVICE_STATUS_REG SPI_MEM_MAP_VALUE(0x04) +#define SPI_BIT_RATE_CONTROL_REG SPI_MEM_MAP_VALUE(0x08) +#define SPI_TRANSMIT_CONTROL_REG SPI_MEM_MAP_VALUE(0x0C) +#define SPI_TRANSMIT_BUFFER_REG SPI_MEM_MAP_VALUE(0x10) +#define SPI_RECEIVE_CONTROL_REG SPI_MEM_MAP_VALUE(0x14) +#define SPI_RECEIVE_BUFFER_REG SPI_MEM_MAP_VALUE(0x18) +#define SPI_FIFO_TRANSMIT_CONFIG_REG SPI_MEM_MAP_VALUE(0x1C) +#define SPI_FIFO_TRANSMIT_CONTROL_REG SPI_MEM_MAP_VALUE(0x20) +#define SPI_FIFO_RECEIVE_CONFIG_REG SPI_MEM_MAP_VALUE(0x24) +#define SPI_INTERRUPT_STATUS_REG SPI_MEM_MAP_VALUE(0x28) +#define SPI_INTERRUPT_ENABLE_REG SPI_MEM_MAP_VALUE(0x2C) + +#define SPI_TRANSMIT_BUFFER_REG_ADDR (CNS3XXX_SSP_BASE +0x10) +#define SPI_RECEIVE_BUFFER_REG_ADDR (CNS3XXX_SSP_BASE +0x18) + +/* Structure for SPI controller of CNS3XXX SOCs */ +struct cns3xxx_spi { + /* bitbang has to be first */ + struct spi_bitbang bitbang; + struct completion done; + wait_queue_head_t wait; + + int len; + int count; + int last_in_message_list; + + /* data buffers */ + const unsigned char *tx; + unsigned char *rx; + + void __iomem *base; + struct spi_master *master; + struct platform_device *pdev; + struct device *dev; +}; + +static inline u8 cns3xxx_spi_bus_idle(struct cns3xxx_spi *hw) +{ + return ((SPI_SERVICE_STATUS_REG & 0x1) ? 0 : 1); +} + +static inline u8 cns3xxx_spi_tx_buffer_empty(struct cns3xxx_spi *hw) +{ + return ((SPI_INTERRUPT_STATUS_REG & (0x1 << 3)) ? 1 : 0); +} + +static inline u8 cns3xxx_spi_rx_buffer_full(struct cns3xxx_spi *hw) +{ + return ((SPI_INTERRUPT_STATUS_REG & (0x1 << 2)) ? 1 : 0); +} + +u8 cns3xxx_spi_tx_rx(struct cns3xxx_spi *hw, u8 tx_channel, u8 tx_eof, + u32 tx_data, u32 * rx_data) +{ + u8 rx_channel; + u8 rx_eof; + + while (!cns3xxx_spi_bus_idle(hw)) ; // do nothing + + while (!cns3xxx_spi_tx_buffer_empty(hw)) ; // do nothing + + SPI_TRANSMIT_CONTROL_REG &= ~(0x7); + SPI_TRANSMIT_CONTROL_REG |= (tx_channel & 0x3) | ((tx_eof & 0x1) << 2); + + SPI_TRANSMIT_BUFFER_REG = tx_data; + + while (!cns3xxx_spi_rx_buffer_full(hw)) ; // do nothing + + rx_channel = SPI_RECEIVE_CONTROL_REG & 0x3; + rx_eof = (SPI_RECEIVE_CONTROL_REG & (0x1 << 2)) ? 1 : 0; + + *rx_data = SPI_RECEIVE_BUFFER_REG; + + if ((tx_channel != rx_channel) || (tx_eof != rx_eof)) { + return 0; + } else { + return 1; + } +} + +u8 cns3xxx_spi_tx(struct cns3xxx_spi *hw, u8 tx_channel, u8 tx_eof, u32 tx_data) +{ + + while (!cns3xxx_spi_bus_idle(hw)) ; // do nothing + + while (!cns3xxx_spi_tx_buffer_empty(hw)) ; // do nothing + + SPI_TRANSMIT_CONTROL_REG &= ~(0x7); + SPI_TRANSMIT_CONTROL_REG |= (tx_channel & 0x3) | ((tx_eof & 0x1) << 2); + + SPI_TRANSMIT_BUFFER_REG = tx_data; + + return 1; +} + +static inline struct cns3xxx_spi *to_hw(struct spi_device *sdev) +{ + return spi_master_get_devdata(sdev->master); +} + +static int cns3xxx_spi_setup_transfer(struct spi_device *spi, + struct spi_transfer *t) +{ + return 0; +} + +static void cns3xxx_spi_chipselect(struct spi_device *spi, int value) +{ + struct cns3xxx_spi *hw = to_hw(spi); + unsigned int spi_config; + + switch (value) { + case BITBANG_CS_INACTIVE: + break; + + case BITBANG_CS_ACTIVE: + spi_config = SPI_CONFIGURATION_REG; + + if (spi->mode & SPI_CPHA) + spi_config |= (0x1 << 13); + else + spi_config &= ~(0x1 << 13); + + if (spi->mode & SPI_CPOL) + spi_config |= (0x1 << 14); + else + spi_config &= ~(0x1 << 14); + + /* write new configration */ + SPI_CONFIGURATION_REG = spi_config; + + SPI_TRANSMIT_CONTROL_REG &= ~(0x7); + SPI_TRANSMIT_CONTROL_REG |= (spi->chip_select & 0x3); + + break; + } +} + +static int cns3xxx_spi_setup(struct spi_device *spi) +{ + if (!spi->bits_per_word) + spi->bits_per_word = 8; + + return 0; +} + +static int cns3xxx_spi_txrx(struct spi_device *spi, struct spi_transfer *t) +{ + struct cns3xxx_spi *hw = to_hw(spi); + + dev_dbg(&spi->dev, "txrx: tx %p, rx %p, len %d\n", t->tx_buf, t->rx_buf, + t->len); + + hw->tx = t->tx_buf; + hw->rx = t->rx_buf; + hw->len = t->len; + hw->count = 0; + hw->last_in_message_list = t->last_in_message_list; + + init_completion(&hw->done); + + if (hw->tx) { + int i; + u32 rx_data; + for (i = 0; i < (hw->len - 1); i++) { + dev_dbg(&spi->dev, + "[SPI_CNS3XXX_DEBUG] hw->tx[%02d]: 0x%02x\n", i, + hw->tx[i]); + cns3xxx_spi_tx_rx(hw, spi->chip_select, 0, hw->tx[i], + &rx_data); + if (hw->rx) { + hw->rx[i] = rx_data; + dev_dbg(&spi->dev, + "[SPI_CNS3XXX_DEBUG] hw->rx[%02d]: 0x%02x\n", + i, hw->rx[i]); + } + } + + if (t->last_in_message_list) { + cns3xxx_spi_tx_rx(hw, spi->chip_select, 1, hw->tx[i], + &rx_data); + if (hw->rx) { + hw->rx[i] = rx_data; + dev_dbg(&spi->dev, + "[SPI_CNS3XXX_DEBUG] hw->rx[%02d]: 0x%02x\n", + i, hw->rx[i]); + } + } else { + cns3xxx_spi_tx_rx(hw, spi->chip_select, 0, hw->tx[i], + &rx_data); + } + goto done; + } + + if (hw->rx) { + int i; + u32 rx_data; + for (i = 0; i < (hw->len - 1); i++) { + cns3xxx_spi_tx_rx(hw, spi->chip_select, 0, 0xff, &rx_data); + hw->rx[i] = rx_data; + dev_dbg(&spi->dev, + "[SPI_CNS3XXX_DEBUG] hw->rx[%02d]: 0x%02x\n", i, + hw->rx[i]); + } + + if (t->last_in_message_list) { + cns3xxx_spi_tx_rx(hw, spi->chip_select, 1, 0xff, &rx_data); + } else { + cns3xxx_spi_tx_rx(hw, spi->chip_select, 0, 0xff, &rx_data); + } + hw->rx[i] = rx_data; + dev_dbg(&spi->dev, "[SPI_CNS3XXX_DEBUG] hw->rx[%02d]: 0x%02x\n", + i, hw->rx[i]); + } +done: + return hw->len; +} + +static void __init cns3xxx_spi_initial(struct cns3xxx_spi *hw) +{ + SPI_CONFIGURATION_REG = (((0x0 & 0x3) << 0) | /* 8bits shift length */ + (0x0 << 9) | /* SPI mode */ + (0x0 << 10) | /* disable FIFO */ + (0x1 << 11) | /* SPI master mode */ + (0x0 << 12) | /* disable SPI loopback mode */ + (0x1 << 13) | /* clock phase */ + (0x1 << 14) | /* clock polarity */ + (0x0 << 24) | /* disable - SPI data swap */ + (0x1 << 29) | /* enable - 2IO Read mode */ + (0x0 << 30) | /* disable - SPI high speed read for system boot up */ + (0x0 << 31)); /* disable - SPI */ + + /* Set SPI bit rate PCLK/2 */ + SPI_BIT_RATE_CONTROL_REG = 0x1; + + /* Set SPI Tx channel 0 */ + SPI_TRANSMIT_CONTROL_REG = 0x0; + + /* Set Tx FIFO Threshold, Tx FIFO has 2 words */ + SPI_FIFO_TRANSMIT_CONFIG_REG &= ~(0x03 << 4); + SPI_FIFO_TRANSMIT_CONFIG_REG |= ((0x0 & 0x03) << 4); + + /* Set Rx FIFO Threshold, Rx FIFO has 2 words */ + SPI_FIFO_RECEIVE_CONFIG_REG &= ~(0x03 << 4); + SPI_FIFO_RECEIVE_CONFIG_REG |= ((0x0 & 0x03) << 4); + + /* Disable all interrupt */ + SPI_INTERRUPT_ENABLE_REG = 0x0; + + /* Clear spurious interrupt sources */ + SPI_INTERRUPT_STATUS_REG = (0x0F << 4); + + /* Enable SPI */ + SPI_CONFIGURATION_REG |= (0x1 << 31); + + return; +} + +static int cns3xxx_spi_probe(struct platform_device *pdev) +{ + struct spi_master *master; + struct cns3xxx_spi *hw; + struct resource *res; + int err = 0; + + printk("%s: setup CNS3XXX SPI Controller\n", __FUNCTION__); + + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (!res) + return -ENODEV; + + /* Allocate master with space for cns3xxx_spi */ + master = spi_alloc_master(&pdev->dev, sizeof(struct cns3xxx_spi)); + if (master == NULL) { + dev_err(&pdev->dev, "No memory for spi_master\n"); + err = -ENOMEM; + goto err_nomem; + } + + hw = spi_master_get_devdata(master); + memset(hw, 0, sizeof(struct cns3xxx_spi)); + + hw->master = spi_master_get(master); + hw->dev = &pdev->dev; + + hw->base = devm_ioremap_resource(hw->dev, res); + if (IS_ERR(hw->base)) { + dev_err(hw->dev, "Unable to map registers\n"); + err = PTR_ERR(hw->base); + goto err_register; + } + + platform_set_drvdata(pdev, hw); + init_completion(&hw->done); + + /* setup the master state. */ + + master->num_chipselect = 4; + master->bus_num = 1; + + /* setup the state for the bitbang driver */ + + hw->bitbang.master = hw->master; + hw->bitbang.setup_transfer = cns3xxx_spi_setup_transfer; + hw->bitbang.chipselect = cns3xxx_spi_chipselect; + hw->bitbang.txrx_bufs = cns3xxx_spi_txrx; + hw->bitbang.master->setup = cns3xxx_spi_setup; + + dev_dbg(hw->dev, "bitbang at %p\n", &hw->bitbang); + + /* SPI controller initializations */ + cns3xxx_spi_initial(hw); + + /* register SPI controller */ + + err = spi_bitbang_start(&hw->bitbang); + if (err) { + dev_err(&pdev->dev, "Failed to register SPI master\n"); + goto err_register; + } + + return 0; + +err_register: + spi_master_put(hw->master);; + +err_nomem: + return err; +} + +static int cns3xxx_spi_remove(struct platform_device *dev) +{ + struct cns3xxx_spi *hw = platform_get_drvdata(dev); + + platform_set_drvdata(dev, NULL); + + spi_unregister_master(hw->master); + + spi_master_put(hw->master); + return 0; +} + +#ifdef CONFIG_PM + +static int cns3xxx_spi_suspend(struct platform_device *pdev, pm_message_t msg) +{ + struct cns3xxx_spi *hw = platform_get_drvdata(pdev); + + return 0; +} + +static int cns3xxx_spi_resume(struct platform_device *pdev) +{ + struct cns3xxx_spi *hw = platform_get_drvdata(pdev); + + return 0; +} + +#else +#define cns3xxx_spi_suspend NULL +#define cns3xxx_spi_resume NULL +#endif + +static struct platform_driver cns3xxx_spi_driver = { + .probe = cns3xxx_spi_probe, + .remove = cns3xxx_spi_remove, + .suspend = cns3xxx_spi_suspend, + .resume = cns3xxx_spi_resume, + .driver = { + .name = "cns3xxx_spi", + .owner = THIS_MODULE, + }, +}; + +static int __init cns3xxx_spi_init(void) +{ + return platform_driver_register(&cns3xxx_spi_driver); +} + +static void __exit cns3xxx_spi_exit(void) +{ + platform_driver_unregister(&cns3xxx_spi_driver); +} + +module_init(cns3xxx_spi_init); +module_exit(cns3xxx_spi_exit); + +MODULE_AUTHOR("Cavium Networks"); +MODULE_DESCRIPTION("CNS3XXX SPI Controller Driver"); +MODULE_LICENSE("GPL"); +MODULE_ALIAS("platform:cns3xxx_spi"); + +EXPORT_SYMBOL_GPL(cns3xxx_spi_tx_rx); diff --git a/target/linux/cns3xxx/files/include/linux/platform_data/cns3xxx.h b/target/linux/cns3xxx/files/include/linux/platform_data/cns3xxx.h new file mode 100644 index 0000000..f286d0d --- /dev/null +++ b/target/linux/cns3xxx/files/include/linux/platform_data/cns3xxx.h @@ -0,0 +1,26 @@ +/* + * arch/arm/mach-cns3xxx/include/mach/platform.h + * + * Copyright 2011 Gateworks Corporation + * Chris Lang <clang@gateworks.com + * + * This file 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_ARCH_PLATFORM_H +#define __ASM_ARCH_PLATFORM_H + +#ifndef __ASSEMBLY__ + +/* Information about built-in Ethernet MAC interfaces */ +struct cns3xxx_plat_info { + u8 ports; /* Bitmap of enabled Ports */ + u8 hwaddr[4][6]; + u32 phy[3]; +}; + +#endif /* __ASM_ARCH_PLATFORM_H */ +#endif diff --git a/target/linux/cns3xxx/image/Makefile b/target/linux/cns3xxx/image/Makefile new file mode 100644 index 0000000..13e5efd --- /dev/null +++ b/target/linux/cns3xxx/image/Makefile @@ -0,0 +1,63 @@ +# +# Copyright (C) 2010-2012 OpenWrt.org +# +# This is free software, licensed under the GNU General Public License v2. +# See /LICENSE for more information. +# +include $(TOPDIR)/rules.mk +include $(INCLUDE_DIR)/image.mk + +define Image/Prepare + mkimage -A arm -O linux -T kernel -C none -a 0x20008000 -e 0x20008000 -n 'OpenWrt Linux-$(LINUX_VERSION)' -d $(KDIR)/zImage $(KDIR)/uImage +endef + +# Build sysupgrade image +define BuildFirmware/Generic + dd if=$(KDIR)/uImage of=$(KDIR)/uImage.pad bs=64k conv=sync; \ + dd if=$(KDIR)/root.$(1) of=$(KDIR)/root.$(1).pad bs=128k conv=sync; \ + sh $(TOPDIR)/scripts/combined-image.sh \ + $(KDIR)/uImage.pad \ + $(KDIR)/root.$(1).pad \ + $(BIN_DIR)/$(IMG_PREFIX)-$(patsubst jffs2-%,jffs2,$(patsubst squashfs-%,squashfs,$(1)))-sysupgrade.bin +endef + +define Image/BuildKernel/Initramfs + mkimage -A arm -O linux -T kernel -C none -a 0x20008000 -e 0x20008000 -n 'OpenWrt Linux-$(LINUX_VERSION)' -d $(KDIR)/zImage-initramfs $(BIN_DIR)/$(IMG_PREFIX)-initramfs-uImage +endef + +define Image/Build + $(call Image/Build/$(1),$(1)) + $(call BuildFirmware/Generic,$(1)) + cp $(KDIR)/uImage $(BIN_DIR)/$(IMG_PREFIX)-uImage +endef + +define Image/Build/jffs2-64k + dd if=$(KDIR)/root.$(1) of=$(BIN_DIR)/$(IMG_PREFIX)-$(1).img bs=64k conv=sync + ( \ + dd if=$(KDIR)/uImage bs=2048k conv=sync; \ + dd if=$(KDIR)/root.$(1) bs=64k conv=sync; \ + ) > $(BIN_DIR)/$(IMG_PREFIX)-$(1).bin +endef + +define Image/Build/jffs2-128k + dd if=$(KDIR)/root.$(1) of=$(BIN_DIR)/$(IMG_PREFIX)-$(1).img bs=128k conv=sync + ( \ + dd if=$(KDIR)/uImage bs=2048k conv=sync; \ + dd if=$(KDIR)/root.$(1) bs=128k conv=sync; \ + ) > $(BIN_DIR)/$(IMG_PREFIX)-$(1).bin +endef + +define Image/Build/squashfs + $(call prepare_generic_squashfs,$(KDIR)/root.$(1)) + dd if=$(KDIR)/root.$(1) of=$(BIN_DIR)/$(IMG_PREFIX)-$(1).img bs=128k conv=sync + ( \ + dd if=$(KDIR)/uImage bs=2048k conv=sync; \ + dd if=$(KDIR)/root.$(1) bs=128k conv=sync; \ + ) > $(BIN_DIR)/$(IMG_PREFIX)-$(1)_laguna_nor.bin + ( \ + dd if=$(KDIR)/uImage bs=1536k conv=sync; \ + dd if=$(KDIR)/root.$(1) bs=256k conv=sync; \ + ) > $(BIN_DIR)/$(IMG_PREFIX)-$(1)_laguna_spi.bin +endef + +$(eval $(call BuildImage)) diff --git a/target/linux/cns3xxx/patches-3.18/000-cns3xxx_arch_include.patch b/target/linux/cns3xxx/patches-3.18/000-cns3xxx_arch_include.patch new file mode 100644 index 0000000..f98fe0c --- /dev/null +++ b/target/linux/cns3xxx/patches-3.18/000-cns3xxx_arch_include.patch @@ -0,0 +1,8 @@ +--- a/arch/arm/mach-cns3xxx/Makefile ++++ b/arch/arm/mach-cns3xxx/Makefile +@@ -1,3 +1,5 @@ ++ccflags-$(CONFIG_ARCH_MULTIPLATFORM) := -I$(srctree)/$(src)/include ++ + obj-$(CONFIG_ARCH_CNS3XXX) += cns3xxx.o + cns3xxx-y += core.o pm.o + cns3xxx-$(CONFIG_ATAGS) += devices.o diff --git a/target/linux/cns3xxx/patches-3.18/001-cns3xxx_section_fix.patch b/target/linux/cns3xxx/patches-3.18/001-cns3xxx_section_fix.patch new file mode 100644 index 0000000..ba0e725 --- /dev/null +++ b/target/linux/cns3xxx/patches-3.18/001-cns3xxx_section_fix.patch @@ -0,0 +1,11 @@ +--- a/arch/arm/mach-cns3xxx/core.c ++++ b/arch/arm/mach-cns3xxx/core.c +@@ -339,7 +339,7 @@ static struct usb_ohci_pdata cns3xxx_usb + .power_off = csn3xxx_usb_power_off, + }; + +-static struct of_dev_auxdata cns3xxx_auxdata[] __initconst = { ++static const struct of_dev_auxdata cns3xxx_auxdata[] __initconst = { + { "intel,usb-ehci", CNS3XXX_USB_BASE, "ehci-platform", &cns3xxx_usb_ehci_pdata }, + { "intel,usb-ohci", CNS3XXX_USB_OHCI_BASE, "ohci-platform", &cns3xxx_usb_ohci_pdata }, + { "cavium,cns3420-ahci", CNS3XXX_SATA2_BASE, "ahci", NULL }, diff --git a/target/linux/cns3xxx/patches-3.18/010-arm_introduce-dma-fiq-irq-broadcast.patch b/target/linux/cns3xxx/patches-3.18/010-arm_introduce-dma-fiq-irq-broadcast.patch new file mode 100644 index 0000000..dd02323 --- /dev/null +++ b/target/linux/cns3xxx/patches-3.18/010-arm_introduce-dma-fiq-irq-broadcast.patch @@ -0,0 +1,64 @@ +--- a/arch/arm/include/asm/glue-cache.h ++++ b/arch/arm/include/asm/glue-cache.h +@@ -156,11 +156,19 @@ static inline void nop_dma_unmap_area(co + #define __cpuc_flush_user_range __glue(_CACHE,_flush_user_cache_range) + #define __cpuc_coherent_kern_range __glue(_CACHE,_coherent_kern_range) + #define __cpuc_coherent_user_range __glue(_CACHE,_coherent_user_range) ++#ifndef CONFIG_DMA_CACHE_FIQ_BROADCAST + #define __cpuc_flush_dcache_area __glue(_CACHE,_flush_kern_dcache_area) + + #define dmac_map_area __glue(_CACHE,_dma_map_area) + #define dmac_unmap_area __glue(_CACHE,_dma_unmap_area) + #define dmac_flush_range __glue(_CACHE,_dma_flush_range) ++#else ++#define __cpuc_flush_dcache_area __glue(fiq,_flush_kern_dcache_area) ++ ++#define dmac_map_area __glue(fiq,_dma_map_area) ++#define dmac_unmap_area __glue(fiq,_dma_unmap_area) ++#define dmac_flush_range __glue(fiq,_dma_flush_range) ++#endif /* CONFIG_DMA_CACHE_FIQ_BROADCAST */ + #endif + + #endif +--- a/arch/arm/mm/Kconfig ++++ b/arch/arm/mm/Kconfig +@@ -844,6 +844,17 @@ config DMA_CACHE_RWFO + in hardware, other workarounds are needed (e.g. cache + maintenance broadcasting in software via FIQ). + ++config DMA_CACHE_FIQ_BROADCAST ++ bool "Enable fiq broadcast DMA cache maintenance" ++ depends on CPU_V6K && SMP ++ select FIQ ++ help ++ The Snoop Control Unit on ARM11MPCore does not detect the ++ cache maintenance operations and the dma_{map,unmap}_area() ++ functions may leave stale cache entries on other CPUs. By ++ enabling this option, fiq broadcast in the ARMv6 ++ DMA cache maintenance functions is performed. ++ + config OUTER_CACHE + bool + +--- a/arch/arm/mm/flush.c ++++ b/arch/arm/mm/flush.c +@@ -304,6 +304,7 @@ void __sync_icache_dcache(pte_t pteval) + void flush_dcache_page(struct page *page) + { + struct address_space *mapping; ++ bool skip_broadcast = true; + + /* + * The zero page is never written to, so never has any dirty +@@ -314,7 +315,10 @@ void flush_dcache_page(struct page *page + + mapping = page_mapping(page); + +- if (!cache_ops_need_broadcast() && ++#ifndef CONFIG_DMA_CACHE_FIQ_BROADCAST ++ skip_broadcast = !cache_ops_need_broadcast(); ++#endif ++ if (skip_broadcast && + mapping && !page_mapped(page)) + clear_bit(PG_dcache_clean, &page->flags); + else { diff --git a/target/linux/cns3xxx/patches-3.18/020-watchdog_support.patch b/target/linux/cns3xxx/patches-3.18/020-watchdog_support.patch new file mode 100644 index 0000000..74ffcc3 --- /dev/null +++ b/target/linux/cns3xxx/patches-3.18/020-watchdog_support.patch @@ -0,0 +1,59 @@ +1. Made the connection between CNS3xxx SOCs(ARCH_CNS3xxx) and MPcore watchdog + since the CNS3xxx SOCs have ARM11 MPcore CPU. +2. Enable mpcore_watchdog option as module to default configuration at + arch/arm/configs/cns3420vb_defconfig. + +Signed-off-by: Tommy Lin <tommy.lin@caviumnetworks.com> + +--- +arch/arm/Kconfig | 1 + + arch/arm/configs/cns3420vb_defconfig | 2 ++ + arch/arm/mach-cns3xxx/cns3420vb.c | 22 ++++++++++++++++++++++ + 3 files changed, 25 insertions(+), 0 deletions(-) + +--- a/arch/arm/configs/cns3420vb_defconfig ++++ b/arch/arm/configs/cns3420vb_defconfig +@@ -56,6 +56,8 @@ CONFIG_LEGACY_PTY_COUNT=16 + # CONFIG_HW_RANDOM is not set + # CONFIG_HWMON is not set + # CONFIG_VGA_CONSOLE is not set ++CONFIG_WATCHDOG=y ++CONFIG_MPCORE_WATCHDOG=m + # CONFIG_HID_SUPPORT is not set + # CONFIG_USB_SUPPORT is not set + CONFIG_MMC=y +--- a/arch/arm/mach-cns3xxx/cns3420vb.c ++++ b/arch/arm/mach-cns3xxx/cns3420vb.c +@@ -206,10 +206,32 @@ static struct platform_device cns3xxx_us + }, + }; + ++/* Watchdog */ ++static struct resource cns3xxx_watchdog_resources[] = { ++ [0] = { ++ .start = CNS3XXX_TC11MP_TWD_BASE, ++ .end = CNS3XXX_TC11MP_TWD_BASE + PAGE_SIZE - 1, ++ .flags = IORESOURCE_MEM, ++ }, ++ [1] = { ++ .start = IRQ_LOCALWDOG, ++ .end = IRQ_LOCALWDOG, ++ .flags = IORESOURCE_IRQ, ++ } ++}; ++ ++static struct platform_device cns3xxx_watchdog_device = { ++ .name = "mpcore_wdt", ++ .id = -1, ++ .num_resources = ARRAY_SIZE(cns3xxx_watchdog_resources), ++ .resource = cns3xxx_watchdog_resources, ++}; ++ + /* + * Initialization + */ + static struct platform_device *cns3420_pdevs[] __initdata = { ++ &cns3xxx_watchdog_device, + &cns3420_nor_pdev, + &cns3xxx_usb_ehci_device, + &cns3xxx_usb_ohci_device, diff --git a/target/linux/cns3xxx/patches-3.18/025-smp_support.patch b/target/linux/cns3xxx/patches-3.18/025-smp_support.patch new file mode 100644 index 0000000..418c065 --- /dev/null +++ b/target/linux/cns3xxx/patches-3.18/025-smp_support.patch @@ -0,0 +1,30 @@ +--- a/arch/arm/mach-cns3xxx/Makefile ++++ b/arch/arm/mach-cns3xxx/Makefile +@@ -5,3 +5,5 @@ cns3xxx-y += core.o pm.o + cns3xxx-$(CONFIG_ATAGS) += devices.o + cns3xxx-$(CONFIG_PCI) += pcie.o + cns3xxx-$(CONFIG_MACH_CNS3420VB) += cns3420vb.o ++cns3xxx-$(CONFIG_SMP) += platsmp.o headsmp.o ++cns3xxx-$(CONFIG_HOTPLUG_CPU) += hotplug.o +--- a/arch/arm/mach-cns3xxx/Kconfig ++++ b/arch/arm/mach-cns3xxx/Kconfig +@@ -2,6 +2,9 @@ menuconfig ARCH_CNS3XXX + bool "Cavium Networks CNS3XXX family" if ARCH_MULTI_V6 + select ARM_GIC + select PCI_DOMAINS if PCI ++ select HAVE_ARM_SCU if SMP ++ select HAVE_ARM_TWD if LOCAL_TIMERS ++ select HAVE_SMP + help + Support for Cavium Networks CNS3XXX platform. + +--- a/arch/arm/mach-cns3xxx/core.h ++++ b/arch/arm/mach-cns3xxx/core.h +@@ -13,6 +13,7 @@ + + #include <linux/reboot.h> + ++extern struct smp_operations cns3xxx_smp_ops; + extern void cns3xxx_timer_init(void); + + #ifdef CONFIG_CACHE_L2X0 diff --git a/target/linux/cns3xxx/patches-3.18/030-pcie_clock.patch b/target/linux/cns3xxx/patches-3.18/030-pcie_clock.patch new file mode 100644 index 0000000..45c73cb --- /dev/null +++ b/target/linux/cns3xxx/patches-3.18/030-pcie_clock.patch @@ -0,0 +1,11 @@ +--- a/arch/arm/mach-cns3xxx/pcie.c ++++ b/arch/arm/mach-cns3xxx/pcie.c +@@ -331,8 +331,6 @@ void __init cns3xxx_pcie_init_late(void) + "imprecise external abort"); + + for (i = 0; i < ARRAY_SIZE(cns3xxx_pcie); i++) { +- cns3xxx_pwr_clk_en(0x1 << PM_CLK_GATE_REG_OFFSET_PCIE(i)); +- cns3xxx_pwr_soft_rst(0x1 << PM_SOFT_RST_REG_OFFST_PCIE(i)); + cns3xxx_pcie_check_link(&cns3xxx_pcie[i]); + cns3xxx_pcie_hw_init(&cns3xxx_pcie[i]); + pci_common_init(&cns3xxx_pcie[i].hw_pci); diff --git a/target/linux/cns3xxx/patches-3.18/031-pcie_init.patch b/target/linux/cns3xxx/patches-3.18/031-pcie_init.patch new file mode 100644 index 0000000..3c739c5 --- /dev/null +++ b/target/linux/cns3xxx/patches-3.18/031-pcie_init.patch @@ -0,0 +1,33 @@ +--- a/arch/arm/mach-cns3xxx/laguna.c ++++ b/arch/arm/mach-cns3xxx/laguna.c +@@ -849,7 +849,6 @@ static struct map_desc laguna_io_desc[] + static void __init laguna_map_io(void) + { + cns3xxx_map_io(); +- cns3xxx_pcie_iotable_init(); + iotable_init(ARRAY_AND_SIZE(laguna_io_desc)); + laguna_early_serial_setup(); + } +@@ -873,15 +872,6 @@ static int laguna_register_gpio(struct g + return ret; + } + +-static int __init laguna_pcie_init(void) +-{ +- if (!machine_is_gw2388()) +- return 0; +- +- return cns3xxx_pcie_init(); +-} +-subsys_initcall(laguna_pcie_init); +- + static int __init laguna_model_setup(void) + { + u32 __iomem *mem; +@@ -1075,5 +1065,6 @@ MACHINE_START(GW2388, "Gateworks Corpora + .init_irq = cns3xxx_init_irq, + .init_time = cns3xxx_timer_init, + .init_machine = laguna_init, ++ .init_late = cns3xxx_pcie_init_late, + .restart = cns3xxx_restart, + MACHINE_END diff --git a/target/linux/cns3xxx/patches-3.18/040-fiq_support.patch b/target/linux/cns3xxx/patches-3.18/040-fiq_support.patch new file mode 100644 index 0000000..4f09a36 --- /dev/null +++ b/target/linux/cns3xxx/patches-3.18/040-fiq_support.patch @@ -0,0 +1,40 @@ +--- a/arch/arm/mach-cns3xxx/Kconfig ++++ b/arch/arm/mach-cns3xxx/Kconfig +@@ -5,6 +5,7 @@ menuconfig ARCH_CNS3XXX + select HAVE_ARM_SCU if SMP + select HAVE_ARM_TWD if LOCAL_TIMERS + select HAVE_SMP ++ select FIQ + help + Support for Cavium Networks CNS3XXX platform. + +--- a/arch/arm/mach-cns3xxx/Makefile ++++ b/arch/arm/mach-cns3xxx/Makefile +@@ -5,5 +5,5 @@ cns3xxx-y += core.o pm.o + cns3xxx-$(CONFIG_ATAGS) += devices.o + cns3xxx-$(CONFIG_PCI) += pcie.o + cns3xxx-$(CONFIG_MACH_CNS3420VB) += cns3420vb.o +-cns3xxx-$(CONFIG_SMP) += platsmp.o headsmp.o ++cns3xxx-$(CONFIG_SMP) += platsmp.o headsmp.o cns3xxx_fiq.o + cns3xxx-$(CONFIG_HOTPLUG_CPU) += hotplug.o +--- a/arch/arm/mach-cns3xxx/cns3xxx.h ++++ b/arch/arm/mach-cns3xxx/cns3xxx.h +@@ -267,6 +267,7 @@ + #define MISC_PCIE_INT_MASK(x) MISC_MEM_MAP(0x978 + (x) * 0x100) + #define MISC_PCIE_INT_STATUS(x) MISC_MEM_MAP(0x97C + (x) * 0x100) + ++#define MISC_FIQ_CPU(x) MISC_MEM_MAP(0xA58 - (x) * 0x4) + /* + * Power management and clock control + */ +--- a/arch/arm/mm/Kconfig ++++ b/arch/arm/mm/Kconfig +@@ -827,7 +827,7 @@ config KUSER_HELPERS + + config DMA_CACHE_RWFO + bool "Enable read/write for ownership DMA cache maintenance" +- depends on CPU_V6K && SMP ++ depends on CPU_V6K && SMP && !ARCH_CNS3XXX + default y + help + The Snoop Control Unit on ARM11MPCore does not detect the diff --git a/target/linux/cns3xxx/patches-3.18/045-twd_base.patch b/target/linux/cns3xxx/patches-3.18/045-twd_base.patch new file mode 100644 index 0000000..f61b8ed --- /dev/null +++ b/target/linux/cns3xxx/patches-3.18/045-twd_base.patch @@ -0,0 +1,45 @@ +--- a/arch/arm/mach-cns3xxx/core.c ++++ b/arch/arm/mach-cns3xxx/core.c +@@ -17,6 +17,7 @@ + #include <linux/platform_device.h> + #include <linux/usb/ehci_pdriver.h> + #include <linux/usb/ohci_pdriver.h> ++#include <asm/smp_twd.h> + #include <asm/mach/arch.h> + #include <asm/mach/map.h> + #include <asm/mach/time.h> +@@ -26,6 +27,8 @@ + #include "core.h" + #include "pm.h" + ++#define IRQ_LOCALTIMER 29 ++ + static struct map_desc cns3xxx_io_desc[] __initdata = { + { + .virtual = CNS3XXX_TC11MP_SCU_BASE_VIRT, +@@ -191,6 +194,17 @@ static struct irqaction cns3xxx_timer_ir + .handler = cns3xxx_timer_interrupt, + }; + ++static void __init cns3xxx_init_twd(void) ++{ ++#ifdef CONFIG_LOCAL_TIMERS ++ static DEFINE_TWD_LOCAL_TIMER(cns3xx_twd_local_timer, ++ CNS3XXX_TC11MP_TWD_BASE, ++ IRQ_LOCALTIMER); ++ ++ twd_local_timer_register(&cns3xx_twd_local_timer); ++#endif ++} ++ + /* + * Set up the clock source and clock events devices + */ +@@ -244,6 +258,7 @@ static void __init __cns3xxx_timer_init( + setup_irq(timer_irq, &cns3xxx_timer_irq); + + cns3xxx_clockevents_init(timer_irq); ++ cns3xxx_init_twd(); + } + + void __init cns3xxx_timer_init(void) diff --git a/target/linux/cns3xxx/patches-3.18/055-pcie_io.patch b/target/linux/cns3xxx/patches-3.18/055-pcie_io.patch new file mode 100644 index 0000000..4680853 --- /dev/null +++ b/target/linux/cns3xxx/patches-3.18/055-pcie_io.patch @@ -0,0 +1,19 @@ +--- a/arch/arm/mach-cns3xxx/core.c ++++ b/arch/arm/mach-cns3xxx/core.c +@@ -81,6 +81,16 @@ static struct map_desc cns3xxx_io_desc[] + .pfn = __phys_to_pfn(CNS3XXX_PCIE1_CFG1_BASE), + .length = SZ_16M, + .type = MT_DEVICE, ++ }, { ++ .virtual = CNS3XXX_PCIE0_IO_BASE_VIRT, ++ .pfn = __phys_to_pfn(CNS3XXX_PCIE0_IO_BASE), ++ .length = SZ_16M, ++ .type = MT_DEVICE, ++ }, { ++ .virtual = CNS3XXX_PCIE1_IO_BASE_VIRT, ++ .pfn = __phys_to_pfn(CNS3XXX_PCIE1_IO_BASE), ++ .length = SZ_16M, ++ .type = MT_DEVICE, + #endif + }, + }; diff --git a/target/linux/cns3xxx/patches-3.18/060-pcie_abort.patch b/target/linux/cns3xxx/patches-3.18/060-pcie_abort.patch new file mode 100644 index 0000000..d72629f --- /dev/null +++ b/target/linux/cns3xxx/patches-3.18/060-pcie_abort.patch @@ -0,0 +1,129 @@ +--- a/arch/arm/mach-cns3xxx/pcie.c ++++ b/arch/arm/mach-cns3xxx/pcie.c +@@ -88,6 +88,79 @@ static void __iomem *cns3xxx_pci_cfg_bas + return base + (where & 0xffc) + (devfn << 12); + } + ++static inline int check_master_abort(struct pci_bus *bus, unsigned int devfn, int where) ++{ ++ struct cns3xxx_pcie *cnspci = pbus_to_cnspci(bus); ++ ++ /* check PCI-compatible status register after access */ ++ if (cnspci->linked) { ++ void __iomem *host_base; ++ u32 sreg, ereg; ++ ++ host_base = (void __iomem *) cnspci->cfg_bases[CNS3XXX_HOST_TYPE].virtual; ++ sreg = __raw_readw(host_base + 0x6) & 0xF900; ++ ereg = __raw_readl(host_base + 0x104); // Uncorrectable Error Status Reg ++ ++ if (sreg | ereg) { ++ /* SREG: ++ * BIT15 - Detected Parity Error ++ * BIT14 - Signaled System Error ++ * BIT13 - Received Master Abort ++ * BIT12 - Received Target Abort ++ * BIT11 - Signaled Target Abort ++ * BIT08 - Master Data Parity Error ++ * ++ * EREG: ++ * BIT20 - Unsupported Request ++ * BIT19 - ECRC ++ * BIT18 - Malformed TLP ++ * BIT17 - Receiver Overflow ++ * BIT16 - Unexpected Completion ++ * BIT15 - Completer Abort ++ * BIT14 - Completion Timeout ++ * BIT13 - Flow Control Protocol Error ++ * BIT12 - Poisoned TLP ++ * BIT04 - Data Link Protocol Error ++ * ++ * TODO: see Documentation/pci-error-recovery.txt ++ * implement error_detected handler ++ */ ++/* ++ printk("pci error: %04d:%02x:%02x.%02x sreg=0x%04x ereg=0x%08x", pci_domain_nr(bus), bus->number, PCI_SLOT(devfn), PCI_FUNC(devfn), sreg, ereg); ++ if (sreg & BIT(15)) printk(" <PERR"); ++ if (sreg & BIT(14)) printk(" >SERR"); ++ if (sreg & BIT(13)) printk(" <MABRT"); ++ if (sreg & BIT(12)) printk(" <TABRT"); ++ if (sreg & BIT(11)) printk(" >TABRT"); ++ if (sreg & BIT( 8)) printk(" MPERR"); ++ ++ if (ereg & BIT(20)) printk(" Unsup"); ++ if (ereg & BIT(19)) printk(" ECRC"); ++ if (ereg & BIT(18)) printk(" MTLP"); ++ if (ereg & BIT(17)) printk(" OFLOW"); ++ if (ereg & BIT(16)) printk(" Unex"); ++ if (ereg & BIT(15)) printk(" ABRT"); ++ if (ereg & BIT(14)) printk(" COMPTO"); ++ if (ereg & BIT(13)) printk(" FLOW"); ++ if (ereg & BIT(12)) printk(" PTLP"); ++ if (ereg & BIT( 4)) printk(" DLINK"); ++ printk("\n"); ++*/ ++ pr_debug("%s failed port%d sreg=0x%04x\n", __func__, ++ cnspci->hw_pci.domain, sreg); ++ ++ /* make sure the status bits are reset */ ++ __raw_writew(sreg, host_base + 6); ++ __raw_writel(ereg, host_base + 0x104); ++ return 1; ++ } ++ } ++ else ++ return 1; ++ ++ return 0; ++} ++ + static int cns3xxx_pci_read_config(struct pci_bus *bus, unsigned int devfn, + int where, int size, u32 *val) + { +@@ -104,6 +177,11 @@ static int cns3xxx_pci_read_config(struc + + v = __raw_readl(base); + ++ if (check_master_abort(bus, devfn, where)) { ++ printk(KERN_ERR "pci error: %04d:%02x:%02x.%02x %02x(%d)= master_abort on read\n", pci_domain_nr(bus), bus->number, PCI_SLOT(devfn), PCI_FUNC(devfn), where, size); ++ return PCIBIOS_DEVICE_NOT_FOUND; ++ } ++ + if (bus->number == 0 && devfn == 0 && + (where & 0xffc) == PCI_CLASS_REVISION) { + /* +@@ -133,11 +211,19 @@ static int cns3xxx_pci_write_config(stru + return PCIBIOS_SUCCESSFUL; + + v = __raw_readl(base); ++ if (check_master_abort(bus, devfn, where)) { ++ printk(KERN_ERR "pci error: %04d:%02x:%02x.%02x %02x(%d)=0x%08x master_abort on read\n", pci_domain_nr(bus), bus->number, PCI_SLOT(devfn), PCI_FUNC(devfn), where, size, val); ++ return PCIBIOS_DEVICE_NOT_FOUND; ++ } + + v &= ~(mask << shift); + v |= (val & mask) << shift; + + __raw_writel(v, base); ++ if (check_master_abort(bus, devfn, where)) { ++ printk(KERN_ERR "pci error: %04d:%02x:%02x.%02x %02x(%d)=0x%08x master_abort on write\n", pci_domain_nr(bus), bus->number, PCI_SLOT(devfn), PCI_FUNC(devfn), where, size, val); ++ return PCIBIOS_DEVICE_NOT_FOUND; ++ } + + return PCIBIOS_SUCCESSFUL; + } +@@ -315,8 +401,14 @@ static void __init cns3xxx_pcie_hw_init( + static int cns3xxx_pcie_abort_handler(unsigned long addr, unsigned int fsr, + struct pt_regs *regs) + { ++#if 0 ++/* R14_ABORT = PC+4 for XSCALE but not ARM11MPCORE ++ * ignore imprecise aborts and use PCI-compatible Status register to ++ * determine errors instead ++ */ + if (fsr & (1 << 10)) + regs->ARM_pc += 4; ++#endif + return 0; + } + diff --git a/target/linux/cns3xxx/patches-3.18/065-pcie_skip_inactive.patch b/target/linux/cns3xxx/patches-3.18/065-pcie_skip_inactive.patch new file mode 100644 index 0000000..837fc87 --- /dev/null +++ b/target/linux/cns3xxx/patches-3.18/065-pcie_skip_inactive.patch @@ -0,0 +1,11 @@ +--- a/arch/arm/mach-cns3xxx/pcie.c ++++ b/arch/arm/mach-cns3xxx/pcie.c +@@ -424,6 +424,8 @@ void __init cns3xxx_pcie_init_late(void) + + for (i = 0; i < ARRAY_SIZE(cns3xxx_pcie); i++) { + cns3xxx_pcie_check_link(&cns3xxx_pcie[i]); ++ if (!cns3xxx_pcie[i].linked) ++ continue; + cns3xxx_pcie_hw_init(&cns3xxx_pcie[i]); + pci_common_init(&cns3xxx_pcie[i].hw_pci); + } diff --git a/target/linux/cns3xxx/patches-3.18/070-i2c_support.patch b/target/linux/cns3xxx/patches-3.18/070-i2c_support.patch new file mode 100644 index 0000000..ff6be6a --- /dev/null +++ b/target/linux/cns3xxx/patches-3.18/070-i2c_support.patch @@ -0,0 +1,31 @@ +--- a/drivers/i2c/busses/Kconfig ++++ b/drivers/i2c/busses/Kconfig +@@ -417,6 +417,18 @@ config I2C_CBUS_GPIO + This driver can also be built as a module. If so, the module + will be called i2c-cbus-gpio. + ++config I2C_CNS3XXX ++ tristate "Cavium CNS3xxx I2C driver" ++ depends on ARCH_CNS3XXX ++ help ++ Support for Cavium CNS3xxx I2C controller driver. ++ ++ This driver can also be built as a module. If so, the module ++ will be called i2c-cns3xxx. ++ ++ Please note that this driver might be needed to bring up other ++ devices such as Cavium CNS3xxx Ethernet. ++ + config I2C_CPM + tristate "Freescale CPM1 or CPM2 (MPC8xx/826x)" + depends on CPM1 || CPM2 +--- a/drivers/i2c/busses/Makefile ++++ b/drivers/i2c/busses/Makefile +@@ -101,6 +101,7 @@ obj-$(CONFIG_I2C_CROS_EC_TUNNEL) += i2c- + obj-$(CONFIG_I2C_ELEKTOR) += i2c-elektor.o + obj-$(CONFIG_I2C_PCA_ISA) += i2c-pca-isa.o + obj-$(CONFIG_I2C_SIBYTE) += i2c-sibyte.o ++obj-$(CONFIG_I2C_CNS3XXX) += i2c-cns3xxx.o + obj-$(CONFIG_SCx200_ACB) += scx200_acb.o + + ccflags-$(CONFIG_I2C_DEBUG_BUS) := -DDEBUG diff --git a/target/linux/cns3xxx/patches-3.18/075-spi_support.patch b/target/linux/cns3xxx/patches-3.18/075-spi_support.patch new file mode 100644 index 0000000..da6dcd4 --- /dev/null +++ b/target/linux/cns3xxx/patches-3.18/075-spi_support.patch @@ -0,0 +1,55 @@ +--- a/drivers/spi/Kconfig ++++ b/drivers/spi/Kconfig +@@ -171,6 +171,13 @@ config SPI_CLPS711X + This enables dedicated general purpose SPI/Microwire1-compatible + master mode interface (SSI1) for CLPS711X-based CPUs. + ++config SPI_CNS3XXX ++ tristate "CNS3XXX SPI controller" ++ depends on ARCH_CNS3XXX && SPI_MASTER ++ select SPI_BITBANG ++ help ++ This enables using the CNS3XXX SPI controller in master mode. ++ + config SPI_COLDFIRE_QSPI + tristate "Freescale Coldfire QSPI controller" + depends on (M520x || M523x || M5249 || M525x || M527x || M528x || M532x) +--- a/drivers/spi/Makefile ++++ b/drivers/spi/Makefile +@@ -25,6 +25,7 @@ obj-$(CONFIG_SPI_BITBANG) += spi-bitban + obj-$(CONFIG_SPI_BUTTERFLY) += spi-butterfly.o + obj-$(CONFIG_SPI_CADENCE) += spi-cadence.o + obj-$(CONFIG_SPI_CLPS711X) += spi-clps711x.o ++obj-$(CONFIG_SPI_CNS3XXX) += spi-cns3xxx.o + obj-$(CONFIG_SPI_COLDFIRE_QSPI) += spi-coldfire-qspi.o + obj-$(CONFIG_SPI_DAVINCI) += spi-davinci.o + obj-$(CONFIG_SPI_DESIGNWARE) += spi-dw.o +--- a/drivers/spi/spi-bitbang.c ++++ b/drivers/spi/spi-bitbang.c +@@ -335,6 +335,10 @@ static int spi_bitbang_transfer_one(stru + */ + if (!m->is_dma_mapped) + t->rx_dma = t->tx_dma = 0; ++ ++ t->last_in_message_list = ++ list_is_last(&t->transfer_list, &m->transfers); ++ + status = bitbang->txrx_bufs(spi, t); + } + if (status > 0) +--- a/include/linux/spi/spi.h ++++ b/include/linux/spi/spi.h +@@ -630,6 +630,13 @@ struct spi_transfer { + u32 speed_hz; + + struct list_head transfer_list; ++ ++#ifdef CONFIG_ARCH_CNS3XXX ++ unsigned last_in_message_list; ++#ifdef CONFIG_SPI_CNS3XXX_2IOREAD ++ u8 dio_read; ++#endif ++#endif + }; + + /** diff --git a/target/linux/cns3xxx/patches-3.18/080-sata_support.patch b/target/linux/cns3xxx/patches-3.18/080-sata_support.patch new file mode 100644 index 0000000..c619787 --- /dev/null +++ b/target/linux/cns3xxx/patches-3.18/080-sata_support.patch @@ -0,0 +1,26 @@ +--- a/drivers/ata/ahci_platform.c ++++ b/drivers/ata/ahci_platform.c +@@ -29,12 +29,23 @@ static const struct ata_port_info ahci_p + .port_ops = &ahci_platform_ops, + }; + ++static const struct ata_port_info cns3xxx_port_info = { ++ .flags = AHCI_FLAG_COMMON, ++ .pio_mask = ATA_PIO4, ++ .udma_mask = ATA_UDMA6, ++ .port_ops = &ahci_pmp_retry_srst_ops, ++}; ++ + static int ahci_probe(struct platform_device *pdev) + { + struct device *dev = &pdev->dev; + struct ahci_host_priv *hpriv; ++ const struct ata_port_info *info = &ahci_port_info; + int rc; + ++ if (IS_ENABLED(CONFIG_ARCH_CNS3XXX)) ++ info = &cns3xxx_port_info; ++ + hpriv = ahci_platform_get_resources(pdev); + if (IS_ERR(hpriv)) + return PTR_ERR(hpriv); diff --git a/target/linux/cns3xxx/patches-3.18/085-ethernet_support.patch b/target/linux/cns3xxx/patches-3.18/085-ethernet_support.patch new file mode 100644 index 0000000..258423a --- /dev/null +++ b/target/linux/cns3xxx/patches-3.18/085-ethernet_support.patch @@ -0,0 +1,20 @@ +--- a/drivers/net/ethernet/Kconfig ++++ b/drivers/net/ethernet/Kconfig +@@ -34,6 +34,7 @@ source "drivers/net/ethernet/adi/Kconfig + source "drivers/net/ethernet/broadcom/Kconfig" + source "drivers/net/ethernet/brocade/Kconfig" + source "drivers/net/ethernet/calxeda/Kconfig" ++source "drivers/net/ethernet/cavium/Kconfig" + source "drivers/net/ethernet/chelsio/Kconfig" + source "drivers/net/ethernet/cirrus/Kconfig" + source "drivers/net/ethernet/cisco/Kconfig" +--- a/drivers/net/ethernet/Makefile ++++ b/drivers/net/ethernet/Makefile +@@ -20,6 +20,7 @@ obj-$(CONFIG_NET_BFIN) += adi/ + obj-$(CONFIG_NET_VENDOR_BROADCOM) += broadcom/ + obj-$(CONFIG_NET_VENDOR_BROCADE) += brocade/ + obj-$(CONFIG_NET_CALXEDA_XGMAC) += calxeda/ ++obj-$(CONFIG_NET_VENDOR_CAVIUM) += cavium/ + obj-$(CONFIG_NET_VENDOR_CHELSIO) += chelsio/ + obj-$(CONFIG_NET_VENDOR_CIRRUS) += cirrus/ + obj-$(CONFIG_NET_VENDOR_CISCO) += cisco/ diff --git a/target/linux/cns3xxx/patches-3.18/090-timers.patch b/target/linux/cns3xxx/patches-3.18/090-timers.patch new file mode 100644 index 0000000..a884021 --- /dev/null +++ b/target/linux/cns3xxx/patches-3.18/090-timers.patch @@ -0,0 +1,104 @@ +--- a/arch/arm/mach-cns3xxx/core.c ++++ b/arch/arm/mach-cns3xxx/core.c +@@ -135,12 +135,13 @@ static void cns3xxx_timer_set_mode(enum + + switch (mode) { + case CLOCK_EVT_MODE_PERIODIC: +- reload = pclk * 20 / (3 * HZ) * 0x25000; ++ reload = pclk * 1000000 / HZ; + writel(reload, cns3xxx_tmr1 + TIMER1_AUTO_RELOAD_OFFSET); + ctrl |= (1 << 0) | (1 << 2) | (1 << 9); + break; + case CLOCK_EVT_MODE_ONESHOT: + /* period set, and timer enabled in 'next_event' hook */ ++ writel(0, cns3xxx_tmr1 + TIMER1_AUTO_RELOAD_OFFSET); + ctrl |= (1 << 2) | (1 << 9); + break; + case CLOCK_EVT_MODE_UNUSED: +@@ -168,7 +169,7 @@ static struct clock_event_device cns3xxx + .features = CLOCK_EVT_FEAT_PERIODIC | CLOCK_EVT_FEAT_ONESHOT, + .set_mode = cns3xxx_timer_set_mode, + .set_next_event = cns3xxx_timer_set_next_event, +- .rating = 350, ++ .rating = 300, + .cpumask = cpu_all_mask, + }; + +@@ -215,6 +216,35 @@ static void __init cns3xxx_init_twd(void + #endif + } + ++static cycle_t cns3xxx_get_cycles(struct clocksource *cs) ++{ ++ u64 val; ++ ++ val = readl(cns3xxx_tmr1 + TIMER_FREERUN_CONTROL_OFFSET); ++ val &= 0xffff; ++ ++ return ((val << 32) | readl(cns3xxx_tmr1 + TIMER_FREERUN_OFFSET)); ++} ++ ++static struct clocksource clocksource_cns3xxx = { ++ .name = "freerun", ++ .rating = 200, ++ .read = cns3xxx_get_cycles, ++ .mask = CLOCKSOURCE_MASK(48), ++ .shift = 16, ++ .flags = CLOCK_SOURCE_IS_CONTINUOUS, ++}; ++ ++static void __init cns3xxx_clocksource_init(void) ++{ ++ /* Reset the FreeRunning counter */ ++ writel((1 << 16), cns3xxx_tmr1 + TIMER_FREERUN_CONTROL_OFFSET); ++ ++ clocksource_cns3xxx.mult = ++ clocksource_khz2mult(100, clocksource_cns3xxx.shift); ++ clocksource_register(&clocksource_cns3xxx); ++} ++ + /* + * Set up the clock source and clock events devices + */ +@@ -232,13 +262,12 @@ static void __init __cns3xxx_timer_init( + /* stop free running timer3 */ + writel(0, cns3xxx_tmr1 + TIMER_FREERUN_CONTROL_OFFSET); + +- /* timer1 */ +- writel(0x5C800, cns3xxx_tmr1 + TIMER1_COUNTER_OFFSET); +- writel(0x5C800, cns3xxx_tmr1 + TIMER1_AUTO_RELOAD_OFFSET); +- + writel(0, cns3xxx_tmr1 + TIMER1_MATCH_V1_OFFSET); + writel(0, cns3xxx_tmr1 + TIMER1_MATCH_V2_OFFSET); + ++ val = (cns3xxx_cpu_clock() >> 3) * 1000000 / HZ; ++ writel(val, cns3xxx_tmr1 + TIMER1_COUNTER_OFFSET); ++ + /* mask irq, non-mask timer1 overflow */ + irq_mask = readl(cns3xxx_tmr1 + TIMER1_2_INTERRUPT_MASK_OFFSET); + irq_mask &= ~(1 << 2); +@@ -250,23 +279,9 @@ static void __init __cns3xxx_timer_init( + val |= (1 << 9); + writel(val, cns3xxx_tmr1 + TIMER1_2_CONTROL_OFFSET); + +- /* timer2 */ +- writel(0, cns3xxx_tmr1 + TIMER2_MATCH_V1_OFFSET); +- writel(0, cns3xxx_tmr1 + TIMER2_MATCH_V2_OFFSET); +- +- /* mask irq */ +- irq_mask = readl(cns3xxx_tmr1 + TIMER1_2_INTERRUPT_MASK_OFFSET); +- irq_mask |= ((1 << 3) | (1 << 4) | (1 << 5)); +- writel(irq_mask, cns3xxx_tmr1 + TIMER1_2_INTERRUPT_MASK_OFFSET); +- +- /* down counter */ +- val = readl(cns3xxx_tmr1 + TIMER1_2_CONTROL_OFFSET); +- val |= (1 << 10); +- writel(val, cns3xxx_tmr1 + TIMER1_2_CONTROL_OFFSET); +- +- /* Make irqs happen for the system timer */ + setup_irq(timer_irq, &cns3xxx_timer_irq); + ++ cns3xxx_clocksource_init(); + cns3xxx_clockevents_init(timer_irq); + cns3xxx_init_twd(); + } diff --git a/target/linux/cns3xxx/patches-3.18/095-gpio_support.patch b/target/linux/cns3xxx/patches-3.18/095-gpio_support.patch new file mode 100644 index 0000000..a6ce177 --- /dev/null +++ b/target/linux/cns3xxx/patches-3.18/095-gpio_support.patch @@ -0,0 +1,67 @@ +--- a/arch/arm/mach-cns3xxx/cns3420vb.c ++++ b/arch/arm/mach-cns3xxx/cns3420vb.c +@@ -245,6 +245,10 @@ static void __init cns3420_init(void) + + cns3xxx_ahci_init(); + cns3xxx_sdhci_init(); ++ cns3xxx_gpio_init( 0, 32, CNS3XXX_GPIOA_BASE_VIRT, IRQ_CNS3XXX_GPIOA, ++ NR_IRQS_CNS3XXX); ++ cns3xxx_gpio_init(32, 32, CNS3XXX_GPIOB_BASE_VIRT, IRQ_CNS3XXX_GPIOB, ++ NR_IRQS_CNS3XXX + 32); + + pm_power_off = cns3xxx_power_off; + } +--- a/arch/arm/mach-cns3xxx/Kconfig ++++ b/arch/arm/mach-cns3xxx/Kconfig +@@ -1,6 +1,8 @@ + menuconfig ARCH_CNS3XXX + bool "Cavium Networks CNS3XXX family" if ARCH_MULTI_V6 + select ARM_GIC ++ select ARCH_REQUIRE_GPIOLIB ++ select GENERIC_IRQ_CHIP + select PCI_DOMAINS if PCI + select HAVE_ARM_SCU if SMP + select HAVE_ARM_TWD if LOCAL_TIMERS +--- a/arch/arm/mach-cns3xxx/Makefile ++++ b/arch/arm/mach-cns3xxx/Makefile +@@ -1,7 +1,7 @@ + ccflags-$(CONFIG_ARCH_MULTIPLATFORM) := -I$(srctree)/$(src)/include + + obj-$(CONFIG_ARCH_CNS3XXX) += cns3xxx.o +-cns3xxx-y += core.o pm.o ++cns3xxx-y += core.o pm.o gpio.o + cns3xxx-$(CONFIG_ATAGS) += devices.o + cns3xxx-$(CONFIG_PCI) += pcie.o + cns3xxx-$(CONFIG_MACH_CNS3420VB) += cns3420vb.o +--- a/arch/arm/mach-cns3xxx/cns3xxx.h ++++ b/arch/arm/mach-cns3xxx/cns3xxx.h +@@ -68,8 +68,10 @@ + #define SMC_PCELL_ID_3_OFFSET 0xFFC + + #define CNS3XXX_GPIOA_BASE 0x74000000 /* GPIO port A */ ++#define CNS3XXX_GPIOA_BASE_VIRT 0xFB006000 + + #define CNS3XXX_GPIOB_BASE 0x74800000 /* GPIO port B */ ++#define CNS3XXX_GPIOB_BASE_VIRT 0xFB007000 + + #define CNS3XXX_RTC_BASE 0x75000000 /* Real Time Clock */ + +--- a/arch/arm/mach-cns3xxx/core.c ++++ b/arch/arm/mach-cns3xxx/core.c +@@ -50,6 +50,16 @@ static struct map_desc cns3xxx_io_desc[] + .pfn = __phys_to_pfn(CNS3XXX_PM_BASE), + .length = SZ_4K, + .type = MT_DEVICE, ++ }, { ++ .virtual = CNS3XXX_GPIOA_BASE_VIRT, ++ .pfn = __phys_to_pfn(CNS3XXX_GPIOA_BASE), ++ .length = SZ_4K, ++ .type = MT_DEVICE, ++ }, { ++ .virtual = CNS3XXX_GPIOB_BASE_VIRT, ++ .pfn = __phys_to_pfn(CNS3XXX_GPIOB_BASE), ++ .length = SZ_4K, ++ .type = MT_DEVICE, + #ifdef CONFIG_PCI + }, { + .virtual = CNS3XXX_PCIE0_HOST_BASE_VIRT, diff --git a/target/linux/cns3xxx/patches-3.18/097-l2x0_cmdline_disable.patch b/target/linux/cns3xxx/patches-3.18/097-l2x0_cmdline_disable.patch new file mode 100644 index 0000000..f575348 --- /dev/null +++ b/target/linux/cns3xxx/patches-3.18/097-l2x0_cmdline_disable.patch @@ -0,0 +1,69 @@ +--- a/arch/arm/mach-cns3xxx/core.c ++++ b/arch/arm/mach-cns3xxx/core.c +@@ -305,13 +305,26 @@ void __init cns3xxx_timer_init(void) + + #ifdef CONFIG_CACHE_L2X0 + +-void __init cns3xxx_l2x0_init(void) ++static int cns3xxx_l2x0_enable = 1; ++ ++static int __init cns3xxx_l2x0_disable(char *s) ++{ ++ cns3xxx_l2x0_enable = 0; ++ return 1; ++} ++__setup("nol2x0", cns3xxx_l2x0_disable); ++ ++static int __init cns3xxx_l2x0_init(void) + { +- void __iomem *base = ioremap(CNS3XXX_L2C_BASE, SZ_4K); ++ void __iomem *base; + u32 val; + ++ if (!cns3xxx_l2x0_enable) ++ return 0; ++ ++ base = ioremap(CNS3XXX_L2C_BASE, SZ_4K); + if (WARN_ON(!base)) +- return; ++ return 0; + + /* + * Tag RAM Control register +@@ -341,7 +354,10 @@ void __init cns3xxx_l2x0_init(void) + + /* 32 KiB, 8-way, parity disable */ + l2x0_init(base, 0x00500000, 0xfe0f0fff); ++ ++ return 0; + } ++arch_initcall(cns3xxx_l2x0_init); + + #endif /* CONFIG_CACHE_L2X0 */ + +--- a/arch/arm/mach-cns3xxx/cns3420vb.c ++++ b/arch/arm/mach-cns3xxx/cns3420vb.c +@@ -239,8 +239,6 @@ static struct platform_device *cns3420_p + + static void __init cns3420_init(void) + { +- cns3xxx_l2x0_init(); +- + platform_add_devices(cns3420_pdevs, ARRAY_SIZE(cns3420_pdevs)); + + cns3xxx_ahci_init(); +--- a/arch/arm/mach-cns3xxx/core.h ++++ b/arch/arm/mach-cns3xxx/core.h +@@ -16,12 +16,6 @@ + extern struct smp_operations cns3xxx_smp_ops; + extern void cns3xxx_timer_init(void); + +-#ifdef CONFIG_CACHE_L2X0 +-void __init cns3xxx_l2x0_init(void); +-#else +-static inline void cns3xxx_l2x0_init(void) {} +-#endif /* CONFIG_CACHE_L2X0 */ +- + #ifdef CONFIG_PCI + extern void __init cns3xxx_pcie_init_late(void); + #else diff --git a/target/linux/cns3xxx/patches-3.18/100-laguna_support.patch b/target/linux/cns3xxx/patches-3.18/100-laguna_support.patch new file mode 100644 index 0000000..3c0bba4 --- /dev/null +++ b/target/linux/cns3xxx/patches-3.18/100-laguna_support.patch @@ -0,0 +1,46 @@ +--- a/arch/arm/mach-cns3xxx/Kconfig ++++ b/arch/arm/mach-cns3xxx/Kconfig +@@ -22,4 +22,12 @@ config MACH_CNS3420VB + This is a platform with an on-board ARM11 MPCore and has support + for USB, USB-OTG, MMC/SD/SDIO, SATA, PCI-E, etc. + ++config MACH_GW2388 ++ bool "Support for Gateworks Laguna Platform" ++ help ++ Include support for the Gateworks Laguna Platform ++ ++ This is a platform with an on-board ARM11 MPCore and has support ++ for USB, USB-OTG, MMC/SD/SDIO, SATA, PCI-E, I2C, GIG, etc. ++ + endif +--- a/arch/arm/mach-cns3xxx/Makefile ++++ b/arch/arm/mach-cns3xxx/Makefile +@@ -7,3 +7,5 @@ cns3xxx-$(CONFIG_PCI) += pcie.o + cns3xxx-$(CONFIG_MACH_CNS3420VB) += cns3420vb.o + cns3xxx-$(CONFIG_SMP) += platsmp.o headsmp.o cns3xxx_fiq.o + cns3xxx-$(CONFIG_HOTPLUG_CPU) += hotplug.o ++cns3xxx-$(CONFIG_MACH_GW2388) += laguna.o ++ +--- a/arch/arm/mach-cns3xxx/devices.c ++++ b/arch/arm/mach-cns3xxx/devices.c +@@ -16,6 +16,7 @@ + #include <linux/compiler.h> + #include <linux/dma-mapping.h> + #include <linux/platform_device.h> ++#include <asm/mach-types.h> + #include "cns3xxx.h" + #include "pm.h" + #include "core.h" +@@ -101,7 +102,11 @@ void __init cns3xxx_sdhci_init(void) + u32 gpioa_pins = __raw_readl(gpioa); + + /* MMC/SD pins share with GPIOA */ +- gpioa_pins |= 0x1fff0004; ++ if (machine_is_gw2388()) { ++ gpioa_pins |= 0x1fff0000; ++ } else { ++ gpioa_pins |= 0x1fff0004; ++ } + __raw_writel(gpioa_pins, gpioa); + + cns3xxx_pwr_clk_en(CNS3XXX_PWR_CLK_EN(SDIO)); diff --git a/target/linux/cns3xxx/patches-3.18/101-laguna_sdhci_card_detect.patch b/target/linux/cns3xxx/patches-3.18/101-laguna_sdhci_card_detect.patch new file mode 100644 index 0000000..72648a5 --- /dev/null +++ b/target/linux/cns3xxx/patches-3.18/101-laguna_sdhci_card_detect.patch @@ -0,0 +1,14 @@ +--- a/drivers/mmc/host/sdhci-cns3xxx.c ++++ b/drivers/mmc/host/sdhci-cns3xxx.c +@@ -88,9 +88,9 @@ static const struct sdhci_pltfm_data sdh + .ops = &sdhci_cns3xxx_ops, + .quirks = SDHCI_QUIRK_BROKEN_DMA | + SDHCI_QUIRK_DATA_TIMEOUT_USES_SDCLK | +- SDHCI_QUIRK_INVERTED_WRITE_PROTECT | + SDHCI_QUIRK_CAP_CLOCK_BASE_BROKEN | +- SDHCI_QUIRK_BROKEN_TIMEOUT_VAL, ++ SDHCI_QUIRK_BROKEN_TIMEOUT_VAL | ++ SDHCI_QUIRK_BROKEN_CARD_DETECTION, + }; + + static int sdhci_cns3xxx_probe(struct platform_device *pdev) diff --git a/target/linux/cns3xxx/patches-3.18/110-pci_isolated_interrupts.patch b/target/linux/cns3xxx/patches-3.18/110-pci_isolated_interrupts.patch new file mode 100644 index 0000000..b7e07ff --- /dev/null +++ b/target/linux/cns3xxx/patches-3.18/110-pci_isolated_interrupts.patch @@ -0,0 +1,188 @@ +--- a/arch/arm/mach-cns3xxx/laguna.c ++++ b/arch/arm/mach-cns3xxx/laguna.c +@@ -21,6 +21,7 @@ + #include <linux/kernel.h> + #include <linux/compiler.h> + #include <linux/io.h> ++#include <linux/irq.h> + #include <linux/gpio.h> + #include <linux/dma-mapping.h> + #include <linux/serial_core.h> +@@ -872,6 +873,47 @@ static int laguna_register_gpio(struct g + return ret; + } + ++/* allow disabling of external isolated PCIe IRQs */ ++static int cns3xxx_pciextirq = 1; ++static int __init cns3xxx_pciextirq_disable(char *s) ++{ ++ cns3xxx_pciextirq = 0; ++ return 1; ++} ++__setup("noextirq", cns3xxx_pciextirq_disable); ++ ++static int __init laguna_pcie_init_irq(void) ++{ ++ u32 __iomem *mem = (void __iomem *)(CNS3XXX_GPIOB_BASE_VIRT + 0x0004); ++ u32 reg = (__raw_readl(mem) >> 26) & 0xf; ++ int irqs[] = { ++ IRQ_CNS3XXX_EXTERNAL_PIN0, ++ IRQ_CNS3XXX_EXTERNAL_PIN1, ++ IRQ_CNS3XXX_EXTERNAL_PIN2, ++ 154, ++ }; ++ ++ if (!machine_is_gw2388()) ++ return 0; ++ ++ /* Verify GPIOB[26:29] == 0001b indicating support for ext irqs */ ++ if (cns3xxx_pciextirq && reg != 1) ++ cns3xxx_pciextirq = 0; ++ ++ if (cns3xxx_pciextirq) { ++ printk("laguna: using isolated PCI interrupts:" ++ " irq%d/irq%d/irq%d/irq%d\n", ++ irqs[0], irqs[1], irqs[2], irqs[3]); ++ cns3xxx_pcie_set_irqs(0, irqs); ++ } else { ++ printk("laguna: using shared PCI interrupts: irq%d\n", ++ IRQ_CNS3XXX_PCIE0_DEVICE); ++ } ++ ++ return 0; ++} ++subsys_initcall(laguna_pcie_init_irq); ++ + static int __init laguna_model_setup(void) + { + u32 __iomem *mem; +@@ -883,8 +925,33 @@ static int __init laguna_model_setup(voi + printk("Running on Gateworks Laguna %s\n", laguna_info.model); + cns3xxx_gpio_init( 0, 32, CNS3XXX_GPIOA_BASE_VIRT, IRQ_CNS3XXX_GPIOA, + NR_IRQS_CNS3XXX); +- cns3xxx_gpio_init(32, 32, CNS3XXX_GPIOB_BASE_VIRT, IRQ_CNS3XXX_GPIOB, +- NR_IRQS_CNS3XXX + 32); ++ ++ /* ++ * If pcie external interrupts are supported and desired ++ * configure IRQ types and configure pin function. ++ * Note that cns3xxx_pciextirq is enabled by default, but can be ++ * unset via the 'noextirq' kernel param or by laguna_pcie_init() if ++ * the baseboard model does not support this hardware feature. ++ */ ++ if (cns3xxx_pciextirq) { ++ mem = (void __iomem *)(CNS3XXX_MISC_BASE_VIRT + 0x0018); ++ reg = __raw_readl(mem); ++ /* GPIO26 is gpio, EXT_INT[0:2] not gpio func */ ++ reg &= ~0x3c000000; ++ reg |= 0x38000000; ++ __raw_writel(reg, mem); ++ ++ cns3xxx_gpio_init(32, 32, CNS3XXX_GPIOB_BASE_VIRT, ++ IRQ_CNS3XXX_GPIOB, NR_IRQS_CNS3XXX + 32); ++ ++ irq_set_irq_type(154, IRQ_TYPE_LEVEL_LOW); ++ irq_set_irq_type(93, IRQ_TYPE_LEVEL_HIGH); ++ irq_set_irq_type(94, IRQ_TYPE_LEVEL_HIGH); ++ irq_set_irq_type(95, IRQ_TYPE_LEVEL_HIGH); ++ } else { ++ cns3xxx_gpio_init(32, 32, CNS3XXX_GPIOB_BASE_VIRT, ++ IRQ_CNS3XXX_GPIOB, NR_IRQS_CNS3XXX + 32); ++ } + + if (strncmp(laguna_info.model, "GW", 2) == 0) { + if (laguna_info.config_bitmap & ETH0_LOAD) +--- a/arch/arm/mach-cns3xxx/pcie.c ++++ b/arch/arm/mach-cns3xxx/pcie.c +@@ -18,6 +18,7 @@ + #include <linux/io.h> + #include <linux/ioport.h> + #include <linux/interrupt.h> ++#include <linux/irq.h> + #include <linux/ptrace.h> + #include <asm/mach/map.h> + #include "cns3xxx.h" +@@ -27,7 +28,7 @@ struct cns3xxx_pcie { + void __iomem *host_regs; /* PCI config registers for host bridge */ + void __iomem *cfg0_regs; /* PCI Type 0 config registers */ + void __iomem *cfg1_regs; /* PCI Type 1 config registers */ +- unsigned int irqs[2]; ++ unsigned int irqs[5]; + struct resource res_io; + struct resource res_mem; + struct hw_pci hw_pci; +@@ -97,7 +98,7 @@ static inline int check_master_abort(str + void __iomem *host_base; + u32 sreg, ereg; + +- host_base = (void __iomem *) cnspci->cfg_bases[CNS3XXX_HOST_TYPE].virtual; ++ host_base = (void __iomem *) cnspci->host_regs; + sreg = __raw_readw(host_base + 0x6) & 0xF900; + ereg = __raw_readl(host_base + 0x104); // Uncorrectable Error Status Reg + +@@ -251,7 +252,7 @@ static struct pci_ops cns3xxx_pcie_ops = + static int cns3xxx_pcie_map_irq(const struct pci_dev *dev, u8 slot, u8 pin) + { + struct cns3xxx_pcie *cnspci = pdev_to_cnspci(dev); +- int irq = cnspci->irqs[!!dev->bus->number]; ++ int irq = cnspci->irqs[!!dev->bus->number + pin - 1]; + + pr_info("PCIe map irq: %04d:%02x:%02x.%02x slot %d, pin %d, irq: %d\n", + pci_domain_nr(dev->bus), dev->bus->number, PCI_SLOT(dev->devfn), +@@ -277,7 +278,12 @@ static struct cns3xxx_pcie cns3xxx_pcie[ + .end = CNS3XXX_PCIE0_HOST_BASE - 1, /* 176 MiB */ + .flags = IORESOURCE_MEM, + }, +- .irqs = { IRQ_CNS3XXX_PCIE0_RC, IRQ_CNS3XXX_PCIE0_DEVICE, }, ++ .irqs = { IRQ_CNS3XXX_PCIE0_RC, ++ IRQ_CNS3XXX_PCIE0_DEVICE, ++ IRQ_CNS3XXX_PCIE0_DEVICE, ++ IRQ_CNS3XXX_PCIE0_DEVICE, ++ IRQ_CNS3XXX_PCIE0_DEVICE, ++ }, + .hw_pci = { + .domain = 0, + .nr_controllers = 1, +@@ -302,7 +308,13 @@ static struct cns3xxx_pcie cns3xxx_pcie[ + .end = CNS3XXX_PCIE1_HOST_BASE - 1, /* 176 MiB */ + .flags = IORESOURCE_MEM, + }, +- .irqs = { IRQ_CNS3XXX_PCIE1_RC, IRQ_CNS3XXX_PCIE1_DEVICE, }, ++ .irqs = { ++ IRQ_CNS3XXX_PCIE1_RC, ++ IRQ_CNS3XXX_PCIE1_DEVICE, ++ IRQ_CNS3XXX_PCIE1_DEVICE, ++ IRQ_CNS3XXX_PCIE1_DEVICE, ++ IRQ_CNS3XXX_PCIE1_DEVICE, ++ }, + .hw_pci = { + .domain = 1, + .nr_controllers = 1, +@@ -412,6 +424,14 @@ static int cns3xxx_pcie_abort_handler(un + return 0; + } + ++void __init cns3xxx_pcie_set_irqs(int bus, int *irqs) ++{ ++ int i; ++ ++ for (i = 0; i < 4; i++) ++ cns3xxx_pcie[bus].irqs[i + 1] = irqs[i]; ++} ++ + void __init cns3xxx_pcie_init_late(void) + { + int i; +--- a/arch/arm/mach-cns3xxx/core.h ++++ b/arch/arm/mach-cns3xxx/core.h +@@ -18,8 +18,10 @@ extern void cns3xxx_timer_init(void); + + #ifdef CONFIG_PCI + extern void __init cns3xxx_pcie_init_late(void); ++extern void __init cns3xxx_pcie_set_irqs(int bus, int *irqs); + #else + static inline void __init cns3xxx_pcie_init_late(void) {} ++static inline void cns3xxx_pcie_set_irqs(int bus, int *irqs) {} + #endif + + void __init cns3xxx_map_io(void); diff --git a/target/linux/cns3xxx/patches-3.18/200-broadcom_phy_reinit.patch b/target/linux/cns3xxx/patches-3.18/200-broadcom_phy_reinit.patch new file mode 100644 index 0000000..e4cc278 --- /dev/null +++ b/target/linux/cns3xxx/patches-3.18/200-broadcom_phy_reinit.patch @@ -0,0 +1,14 @@ +--- a/drivers/net/phy/broadcom.c ++++ b/drivers/net/phy/broadcom.c +@@ -393,6 +393,11 @@ static int bcm5481_config_aneg(struct ph + /* Write bits 14:0. */ + reg |= (1 << 15); + phy_write(phydev, 0x18, reg); ++ } else { ++ phy_write(phydev, 0x18, 0xf1e7); ++ phy_write(phydev, 0x1c, 0x8e00); ++ ++ phy_write(phydev, 0x1c, 0xa41f); + } + + return ret; diff --git a/target/linux/cns3xxx/patches-3.18/210-dwc2_defaults.patch b/target/linux/cns3xxx/patches-3.18/210-dwc2_defaults.patch new file mode 100644 index 0000000..e9c71a1 --- /dev/null +++ b/target/linux/cns3xxx/patches-3.18/210-dwc2_defaults.patch @@ -0,0 +1,47 @@ +--- a/drivers/usb/dwc2/platform.c ++++ b/drivers/usb/dwc2/platform.c +@@ -105,6 +105,34 @@ static const struct dwc2_core_params par + .uframe_sched = -1, + }; + ++static const struct dwc2_core_params params_cns3xxx = { ++ .otg_cap = 2, /* non-HNP/non-SRP capable */ ++ .otg_ver = 0, /* 1.3 */ ++ .dma_enable = 1, ++ .dma_desc_enable = 0, ++ .speed = 0, /* High Speed */ ++ .enable_dynamic_fifo = 1, ++ .en_multiple_tx_fifo = 1, ++ .host_rx_fifo_size = 658, /* 774 DWORDs */ ++ .host_nperio_tx_fifo_size = 128, /* 256 DWORDs */ ++ .host_perio_tx_fifo_size = 658, /* 512 DWORDs */ ++ .max_transfer_size = 65535, ++ .max_packet_count = 511, ++ .host_channels = 16, ++ .phy_type = 1, /* UTMI */ ++ .phy_utmi_width = 16, /* 8 bits */ ++ .phy_ulpi_ddr = 0, /* Single */ ++ .phy_ulpi_ext_vbus = 0, ++ .i2c_enable = 0, ++ .ulpi_fs_ls = 0, ++ .host_support_fs_ls_low_power = 0, ++ .host_ls_low_power_phy_clk = 0, /* 48 MHz */ ++ .ts_dline = 0, ++ .reload_ctl = 0, ++ .ahbcfg = 0x10, ++ .uframe_sched = 0, ++}; ++ + /** + * dwc2_driver_remove() - Called when the DWC_otg core is unregistered with the + * DWC_otg driver +@@ -165,6 +193,9 @@ static int dwc2_driver_probe(struct plat + /* Default all params to autodetect */ + dwc2_set_all_params(&defparams, -1); + params = &defparams; ++#ifdef CONFIG_ARCH_CNS3XXX ++ params = ¶ms_cns3xxx; ++#endif + + /* + * Disable descriptor dma mode by default as the HW can support |