mpc85xx: add v3.18 support

Signed-off-by: John Crispin <blogic@openwrt.org>

SVN-Revision: 44485

9 files changed, 1207 insertions, 0 deletions

diff --git a/target/linux/mpc85xx/config-3.18 b/target/linux/mpc85xx/config-3.18
new file mode 100644
index 0000000..9535301
--- /dev/null
+++ b/target/linux/mpc85xx/config-3.18
@@ -0,0 +1,297 @@
+# CONFIG_40x is not set
+# CONFIG_44x is not set
+# CONFIG_ADVANCED_OPTIONS is not set
+CONFIG_AR8216_PHY=y
+CONFIG_AR8216_PHY_LEDS=y
+CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y
+CONFIG_ARCH_ENABLE_MEMORY_HOTREMOVE=y
+CONFIG_ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE=y
+CONFIG_ARCH_HAS_ILOG2_U32=y
+CONFIG_ARCH_HAS_SG_CHAIN=y
+CONFIG_ARCH_HAS_WALK_MEMORY=y
+CONFIG_ARCH_HAVE_NMI_SAFE_CMPXCHG=y
+CONFIG_ARCH_HIBERNATION_POSSIBLE=y
+CONFIG_ARCH_MAY_HAVE_PC_FDC=y
+CONFIG_ARCH_MIGHT_HAVE_PC_PARPORT=y
+CONFIG_ARCH_MIGHT_HAVE_PC_SERIO=y
+# CONFIG_ARCH_NEEDS_CPU_IDLE_COUPLED is not set
+# CONFIG_ARCH_RANDOM is not set
+CONFIG_ARCH_REQUIRE_GPIOLIB=y
+CONFIG_ARCH_SUPPORTS_ATOMIC_RMW=y
+CONFIG_ARCH_SUPPORTS_DEBUG_PAGEALLOC=y
+CONFIG_ARCH_SUPPORTS_UPROBES=y
+CONFIG_ARCH_SUSPEND_POSSIBLE=y
+CONFIG_ARCH_USE_BUILTIN_BSWAP=y
+CONFIG_ARCH_WANT_IPC_PARSE_VERSION=y
+CONFIG_ARCH_WANT_OPTIONAL_GPIOLIB=y
+CONFIG_AUDIT_ARCH=y
+CONFIG_BOOKE=y
+CONFIG_BOUNCE=y
+# CONFIG_BSC9131_RDB is not set
+# CONFIG_BSC9132_QDS is not set
+# CONFIG_C293_PCIE is not set
+CONFIG_CLONE_BACKWARDS=y
+CONFIG_CMDLINE="console=ttyS0,115200"
+CONFIG_CMDLINE_BOOL=y
+# CONFIG_CORENET_GENERIC is not set
+# CONFIG_CPM2 is not set
+CONFIG_CPU_BIG_ENDIAN=y
+# CONFIG_CPU_LITTLE_ENDIAN is not set
+# CONFIG_CRYPTO_SHA1_PPC is not set
+CONFIG_DEBUG_BUGVERBOSE=y
+CONFIG_DEFAULT_UIMAGE=y
+CONFIG_DEVKMEM=y
+CONFIG_DNOTIFY=y
+CONFIG_DTC=y
+# CONFIG_E200 is not set
+CONFIG_E500=y
+CONFIG_EARLY_PRINTK=y
+CONFIG_ENABLE_MUST_CHECK=y
+# CONFIG_EPAPR_BOOT is not set
+CONFIG_ETHERNET_PACKET_MANGLE=y
+CONFIG_FSL_BOOKE=y
+CONFIG_FSL_EMB_PERFMON=y
+CONFIG_FSL_LBC=y
+CONFIG_FSL_PCI=y
+CONFIG_FSL_PQ_MDIO=y
+CONFIG_FSL_SOC=y
+CONFIG_FSL_SOC_BOOKE=y
+CONFIG_FSL_ULI1575=y
+CONFIG_GENERIC_ATOMIC64=y
+CONFIG_GENERIC_BUG=y
+CONFIG_GENERIC_CLOCKEVENTS=y
+CONFIG_GENERIC_CLOCKEVENTS_BUILD=y
+CONFIG_GENERIC_CMOS_UPDATE=y
+# CONFIG_GENERIC_CSUM is not set
+CONFIG_GENERIC_IO=y
+CONFIG_GENERIC_IRQ_SHOW=y
+CONFIG_GENERIC_IRQ_SHOW_LEVEL=y
+CONFIG_GENERIC_ISA_DMA=y
+CONFIG_GENERIC_NVRAM=y
+CONFIG_GENERIC_PCI_IOMAP=y
+CONFIG_GENERIC_SMP_IDLE_THREAD=y
+CONFIG_GENERIC_STRNCPY_FROM_USER=y
+CONFIG_GENERIC_STRNLEN_USER=y
+# CONFIG_GENERIC_TBSYNC is not set
+CONFIG_GENERIC_TIME_VSYSCALL_OLD=y
+CONFIG_GEN_RTC=y
+# CONFIG_GEN_RTC_X is not set
+# CONFIG_GE_FPGA is not set
+# CONFIG_GE_IMP3A is not set
+CONFIG_GIANFAR=y
+CONFIG_GPIOLIB=y
+CONFIG_GPIO_DEVRES=y
+CONFIG_GPIO_MPC8XXX=y
+CONFIG_GPIO_SYSFS=y
+# CONFIG_HAMRADIO is not set
+CONFIG_HAS_DMA=y
+CONFIG_HAS_IOMEM=y
+CONFIG_HAS_IOPORT_MAP=y
+CONFIG_HAS_RAPIDIO=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_TRACEHOOK=y
+# CONFIG_HAVE_BOOTMEM_INFO_NODE is not set
+CONFIG_HAVE_DEBUG_KMEMLEAK=y
+CONFIG_HAVE_DEBUG_STACKOVERFLOW=y
+CONFIG_HAVE_DMA_API_DEBUG=y
+CONFIG_HAVE_DMA_ATTRS=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 is not set
+CONFIG_HAVE_IDE=y
+CONFIG_HAVE_IOREMAP_PROT=y
+CONFIG_HAVE_IRQ_EXIT_ON_IRQ_STACK=y
+CONFIG_HAVE_LATENCYTOP_SUPPORT=y
+CONFIG_HAVE_MEMBLOCK=y
+CONFIG_HAVE_MEMBLOCK_NODE_MAP=y
+CONFIG_HAVE_MOD_ARCH_SPECIFIC=y
+CONFIG_HAVE_NET_DSA=y
+CONFIG_HAVE_OPROFILE=y
+CONFIG_HAVE_PERF_EVENTS=y
+CONFIG_HAVE_REGS_AND_STACK_ACCESS_API=y
+# CONFIG_HAVE_SETUP_PER_CPU_AREA is not set
+CONFIG_HAVE_SYSCALL_TRACEPOINTS=y
+CONFIG_HZ=250
+# CONFIG_HZ_100 is not set
+CONFIG_HZ_250=y
+CONFIG_HZ_PERIODIC=y
+CONFIG_INET_DIAG=y
+CONFIG_INET_TCP_DIAG=y
+CONFIG_INITRAMFS_SOURCE=""
+CONFIG_IOMMU_HELPER=y
+# CONFIG_IPIC is not set
+CONFIG_IRQCHIP=y
+CONFIG_IRQ_DOMAIN=y
+CONFIG_IRQ_FORCED_THREADING=y
+CONFIG_IRQ_WORK=y
+CONFIG_ISA_DMA_API=y
+CONFIG_KERNEL_START=0xc0000000
+CONFIG_KERNFS=y
+# CONFIG_KSI8560 is not set
+CONFIG_LEGACY_PTYS=y
+CONFIG_LEGACY_PTY_COUNT=256
+CONFIG_LIBFDT=y
+CONFIG_LOWMEM_CAM_NUM=3
+CONFIG_LOWMEM_SIZE=0x30000000
+CONFIG_LXT_PHY=y
+# CONFIG_MATH_EMULATION is not set
+CONFIG_MDIO_BOARDINFO=y
+CONFIG_MIGRATION=y
+# CONFIG_MMIO_NVRAM is not set
+CONFIG_MODULES_USE_ELF_RELA=y
+# CONFIG_MPC8536_DS is not set
+# CONFIG_MPC8540_ADS is not set
+# CONFIG_MPC8560_ADS is not set
+CONFIG_MPC85xx_CDS=y
+# CONFIG_MPC85xx_DS is not set
+CONFIG_MPC85xx_MDS=y
+CONFIG_MPC85xx_RDB=y
+CONFIG_MPIC=y
+# CONFIG_MPIC_MSGR is not set
+CONFIG_MPIC_TIMER=y
+# CONFIG_MPIC_U3_HT_IRQS is not set
+# CONFIG_MPIC_WEIRD is not set
+# CONFIG_MTD_CFI is not set
+CONFIG_MTD_M25P80=y
+CONFIG_MTD_SPI_NOR=y
+CONFIG_MTD_SPLIT_SUPPORT=y
+# CONFIG_NEED_DMA_MAP_STATE is not set
+# CONFIG_NEED_PER_CPU_EMBED_FIRST_CHUNK is not set
+CONFIG_NEED_PER_CPU_KM=y
+CONFIG_NEED_SG_DMA_LENGTH=y
+# CONFIG_NONSTATIC_KERNEL is not set
+CONFIG_NR_IRQS=512
+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_SIGSUSPEND=y
+CONFIG_P1010_RDB=y
+# CONFIG_P1022_DS is not set
+# CONFIG_P1022_RDK is not set
+# CONFIG_P1023_RDB is not set
+CONFIG_PAGEFLAGS_EXTENDED=y
+CONFIG_PAGE_OFFSET=0xc0000000
+CONFIG_PCI=y
+CONFIG_PCIEAER=y
+CONFIG_PCIEASPM=y
+# CONFIG_PCIEASPM_DEBUG is not set
+CONFIG_PCIEASPM_DEFAULT=y
+# CONFIG_PCIEASPM_PERFORMANCE is not set
+# CONFIG_PCIEASPM_POWERSAVE is not set
+CONFIG_PCIEPORTBUS=y
+CONFIG_PCI_DOMAINS=y
+CONFIG_PHYLIB=y
+CONFIG_PHYSICAL_ALIGN=0x04000000
+CONFIG_PHYSICAL_START=0x00000000
+# CONFIG_PHYS_64BIT is not set
+# CONFIG_PPA8548 is not set
+CONFIG_PPC=y
+CONFIG_PPC32=y
+# CONFIG_PPC64 is not set
+CONFIG_PPC_85xx=y
+# CONFIG_PPC_8xx is not set
+# CONFIG_PPC_970_NAP is not set
+CONFIG_PPC_ADV_DEBUG_DACS=2
+CONFIG_PPC_ADV_DEBUG_DVCS=0
+CONFIG_PPC_ADV_DEBUG_IACS=2
+CONFIG_PPC_ADV_DEBUG_REGS=y
+CONFIG_PPC_BOOK3E_MMU=y
+# CONFIG_PPC_BOOK3S_32 is not set
+# CONFIG_PPC_CELL is not set
+# CONFIG_PPC_CELL_NATIVE is not set
+# CONFIG_PPC_COPRO_BASE is not set
+# CONFIG_PPC_DCR_MMIO is not set
+# CONFIG_PPC_DCR_NATIVE is not set
+CONFIG_PPC_DOORBELL=y
+# CONFIG_PPC_E500MC is not set
+# CONFIG_PPC_EARLY_DEBUG is not set
+# CONFIG_PPC_EPAPR_HV_PIC is not set
+CONFIG_PPC_FSL_BOOK3E=y
+CONFIG_PPC_I8259=y
+# CONFIG_PPC_ICP_HV is not set
+# CONFIG_PPC_ICP_NATIVE is not set
+# CONFIG_PPC_ICS_RTAS is not set
+CONFIG_PPC_INDIRECT_PCI=y
+CONFIG_PPC_LIB_RHEAP=y
+CONFIG_PPC_MMU_NOHASH=y
+# CONFIG_PPC_MM_SLICES is not set
+# CONFIG_PPC_MPC106 is not set
+CONFIG_PPC_OF=y
+# CONFIG_PPC_P7_NAP is not set
+CONFIG_PPC_PCI_CHOICE=y
+# CONFIG_PPC_QEMU_E500 is not set
+# CONFIG_PPC_RTAS is not set
+CONFIG_PPC_SMP_MUXED_IPI=y
+CONFIG_PPC_UDBG_16550=y
+CONFIG_PPC_WERROR=y
+# CONFIG_PPC_XICS is not set
+# CONFIG_PQ2ADS is not set
+# CONFIG_PREEMPT_RCU is not set
+CONFIG_PROC_PAGE_MONITOR=y
+# CONFIG_PTP_1588_CLOCK_GIANFAR is not set
+CONFIG_QE_GPIO=y
+CONFIG_QUICC_ENGINE=y
+CONFIG_RAS=y
+# CONFIG_RCU_STALL_COMMON is not set
+CONFIG_RWSEM_XCHGADD_ALGORITHM=y
+# CONFIG_SBC8548 is not set
+CONFIG_SCHED_HRTICK=y
+# CONFIG_SCSI_DMA is not set
+CONFIG_SERIAL_8250_EXTENDED=y
+CONFIG_SERIAL_8250_FSL=y
+CONFIG_SERIAL_8250_SHARE_IRQ=y
+CONFIG_SERIAL_OF_PLATFORM=y
+# CONFIG_SERIAL_QE is not set
+CONFIG_SIMPLE_GPIO=y
+# CONFIG_SLAB is not set
+CONFIG_SLUB=y
+CONFIG_SOCK_DIAG=y
+# CONFIG_SOCRATES is not set
+CONFIG_SPARSE_IRQ=y
+CONFIG_SPE=y
+CONFIG_SPE_POSSIBLE=y
+CONFIG_SPI=y
+CONFIG_SPI_FSL_ESPI=y
+CONFIG_SPI_FSL_LIB=y
+CONFIG_SPI_MASTER=y
+# CONFIG_STRIP_ASM_SYMS is not set
+# CONFIG_STX_GP3 is not set
+CONFIG_SWCONFIG=y
+CONFIG_SWIOTLB=y
+CONFIG_SYSCTL_EXCEPTION_TRACE=y
+CONFIG_TASK_SIZE=0xc0000000
+CONFIG_TICK_CPU_ACCOUNTING=y
+CONFIG_TL_WDR4900_V1=y
+# CONFIG_TQM8540 is not set
+# CONFIG_TQM8541 is not set
+# CONFIG_TQM8548 is not set
+# CONFIG_TQM8555 is not set
+# CONFIG_TQM8560 is not set
+# CONFIG_TWR_P102x is not set
+CONFIG_UCC=y
+CONFIG_UCC_FAST=y
+CONFIG_UCC_GETH=y
+# CONFIG_UGETH_TX_ON_DEMAND is not set
+CONFIG_USB_SUPPORT=y
+CONFIG_VM_EVENT_COUNTERS=y
+CONFIG_WORD_SIZE=32
+# CONFIG_XES_MPC85xx is not set
+CONFIG_XZ_DEC_BCJ=y
+CONFIG_XZ_DEC_POWERPC=y
diff --git a/target/linux/mpc85xx/patches-3.18/001-powerpc-85xx-add-gpio-keys-to-of-match-table.patch b/target/linux/mpc85xx/patches-3.18/001-powerpc-85xx-add-gpio-keys-to-of-match-table.patch
new file mode 100644
index 0000000..5e5ab10
--- /dev/null
+++ b/target/linux/mpc85xx/patches-3.18/001-powerpc-85xx-add-gpio-keys-to-of-match-table.patch
@@ -0,0 +1,10 @@
+--- a/arch/powerpc/platforms/85xx/common.c
++++ b/arch/powerpc/platforms/85xx/common.c
+@@ -30,6 +30,7 @@ static const struct of_device_id mpc85xx
+ 	{ .compatible = "fsl,mpc8548-guts", },
+ 	/* Probably unnecessary? */
+ 	{ .compatible = "gpio-leds", },
++	{ .compatible = "gpio-keys", },
+ 	/* For all PCI controllers */
+ 	{ .compatible = "fsl,mpc8540-pci", },
+ 	{ .compatible = "fsl,mpc8548-pcie", },
diff --git a/target/linux/mpc85xx/patches-3.18/100-fix_mpc8568e_mds.patch b/target/linux/mpc85xx/patches-3.18/100-fix_mpc8568e_mds.patch
new file mode 100644
index 0000000..993b5f7
--- /dev/null
+++ b/target/linux/mpc85xx/patches-3.18/100-fix_mpc8568e_mds.patch
@@ -0,0 +1,32 @@
+--- a/arch/powerpc/boot/dts/fsl/mpc8568si-post.dtsi
++++ b/arch/powerpc/boot/dts/fsl/mpc8568si-post.dtsi
+@@ -134,17 +134,8 @@
+ 
+ 	};
+ 
+-	duart-sleep-nexus {
+-		#address-cells = <1>;
+-		#size-cells = <1>;
+-		compatible = "simple-bus";
+-		sleep = <&pmc 0x00000002>;
+-		ranges;
+-
+ /include/ "pq3-duart-0.dtsi"
+ 
+-	};
+-
+ 	L2: l2-cache-controller@20000 {
+ 		compatible = "fsl,mpc8568-l2-cache-controller";
+ 		reg = <0x20000 0x1000>;
+--- a/arch/powerpc/boot/dts/mpc8568mds.dts
++++ b/arch/powerpc/boot/dts/mpc8568mds.dts
+@@ -309,6 +309,9 @@
+ 			gpios = <&bcsr5 3 0>;
+ 		};
+ 	};
++	chosen {
++		linux,stdout-path = "/soc8568@e0000000/serial@4500";
++	};
+ };
+ 
+ /include/ "fsl/mpc8568si-post.dtsi"
diff --git a/target/linux/mpc85xx/patches-3.18/110-fix_mpc8548_cds.patch b/target/linux/mpc85xx/patches-3.18/110-fix_mpc8548_cds.patch
new file mode 100644
index 0000000..b6dbd0d
--- /dev/null
+++ b/target/linux/mpc85xx/patches-3.18/110-fix_mpc8548_cds.patch
@@ -0,0 +1,40 @@
+--- a/arch/powerpc/boot/dts/fsl/mpc8548si-post.dtsi
++++ b/arch/powerpc/boot/dts/fsl/mpc8548si-post.dtsi
+@@ -131,7 +131,24 @@
+ 
+ /include/ "pq3-i2c-0.dtsi"
+ /include/ "pq3-i2c-1.dtsi"
+-/include/ "pq3-duart-0.dtsi"
++
++	serial0: serial@4600 {
++		cell-index = <1>;
++		device_type = "serial";
++		compatible = "fsl,ns16550", "ns16550";
++		reg = <0x4600 0x100>;
++		clock-frequency = <0>;
++		interrupts = <42 2 0 0>;
++	};
++
++	serial1: serial@4500 {
++		cell-index = <0>;
++		device_type = "serial";
++		compatible = "fsl,ns16550", "ns16550";
++		reg = <0x4500 0x100>;
++		clock-frequency = <0>;
++		interrupts = <42 2 0 0>;
++	};
+ 
+ 	L2: l2-cache-controller@20000 {
+ 		compatible = "fsl,mpc8548-l2-cache-controller";
+--- a/arch/powerpc/boot/dts/mpc8548cds_32b.dts
++++ b/arch/powerpc/boot/dts/mpc8548cds_32b.dts
+@@ -75,6 +75,9 @@
+ 			ranges = <0x0 0x0 0x0 0xc0000000 0x0 0x20000000>;
+ 		};
+ 	};
++	chosen {
++		linux,stdout-path = "/soc8548@e0000000/serial@4600";
++	};
+ };
+ 
+ /*
diff --git a/target/linux/mpc85xx/patches-3.18/120-mpc8548_cds_i8259_noirq_init.patch b/target/linux/mpc85xx/patches-3.18/120-mpc8548_cds_i8259_noirq_init.patch
new file mode 100644
index 0000000..81b9193
--- /dev/null
+++ b/target/linux/mpc85xx/patches-3.18/120-mpc8548_cds_i8259_noirq_init.patch
@@ -0,0 +1,23 @@
+--- a/arch/powerpc/platforms/85xx/mpc85xx_cds.c
++++ b/arch/powerpc/platforms/85xx/mpc85xx_cds.c
+@@ -247,15 +247,16 @@ static int mpc85xx_cds_8259_attach(void)
+ 		return -ENODEV;
+ 	}
+ 
++	i8259_init(cascade_node, 0);
++	of_node_put(cascade_node);
++
+ 	cascade_irq = irq_of_parse_and_map(cascade_node, 0);
+ 	if (cascade_irq == NO_IRQ) {
+-		printk(KERN_ERR "Failed to map cascade interrupt\n");
++		of_node_put(cascade_node);
++		printk(KERN_DEBUG "No interrupt for i8259 PIC\n");
+ 		return -ENXIO;
+ 	}
+ 
+-	i8259_init(cascade_node, 0);
+-	of_node_put(cascade_node);
+-
+ 	/*
+ 	 *  Hook the interrupt to make sure desc->action is never NULL.
+ 	 *  This is required to ensure that the interrupt does not get
diff --git a/target/linux/mpc85xx/patches-3.18/130-mpc8548_cds_disable_i8259_irq.patch b/target/linux/mpc85xx/patches-3.18/130-mpc8548_cds_disable_i8259_irq.patch
new file mode 100644
index 0000000..7d9e63c
--- /dev/null
+++ b/target/linux/mpc85xx/patches-3.18/130-mpc8548_cds_disable_i8259_irq.patch
@@ -0,0 +1,13 @@
+--- a/arch/powerpc/boot/dts/mpc8548cds.dtsi
++++ b/arch/powerpc/boot/dts/mpc8548cds.dtsi
+@@ -289,8 +289,10 @@
+ 				#address-cells = <0>;
+ 				#interrupt-cells = <2>;
+ 				compatible = "chrp,iic";
++/*
+ 				interrupts = <0 1 0 0>;
+ 				interrupt-parent = <&mpic>;
++*/
+ 			};
+ 
+ 			rtc@70 {
diff --git a/target/linux/mpc85xx/patches-3.18/140-powerpc-85xx-tl-wdr4900-v1-support.patch b/target/linux/mpc85xx/patches-3.18/140-powerpc-85xx-tl-wdr4900-v1-support.patch
new file mode 100644
index 0000000..6a6eeac
--- /dev/null
+++ b/target/linux/mpc85xx/patches-3.18/140-powerpc-85xx-tl-wdr4900-v1-support.patch
@@ -0,0 +1,615 @@
+From 406d86e5990ac171f18ef6e2973672d8fbfe1556 Mon Sep 17 00:00:00 2001
+From: Gabor Juhos <juhosg@openwrt.org>
+Date: Wed, 20 Feb 2013 08:40:33 +0100
+Subject: [PATCH] powerpc: 85xx: add support for the TP-Link TL-WDR4900 v1
+ board
+
+This patch adds support for the TP-Link TL-WDR4900 v1
+concurrent dual-band wireless router. The devices uses
+the Freescale P1014 SoC.
+
+Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
+---
+ arch/powerpc/boot/Makefile                  |   3 +
+ arch/powerpc/boot/cuboot-tl-wdr4900-v1.c    | 164 +++++++++++++++++++++
+ arch/powerpc/boot/dts/tl-wdr4900-v1.dts     | 212 ++++++++++++++++++++++++++++
+ arch/powerpc/boot/wrapper                   |   4 +
+ arch/powerpc/platforms/85xx/Kconfig         |  11 ++
+ arch/powerpc/platforms/85xx/Makefile        |   1 +
+ arch/powerpc/platforms/85xx/tl_wdr4900_v1.c | 145 +++++++++++++++++++
+ 7 files changed, 540 insertions(+)
+ create mode 100644 arch/powerpc/boot/cuboot-tl-wdr4900-v1.c
+ create mode 100644 arch/powerpc/boot/dts/tl-wdr4900-v1.dts
+ create mode 100644 arch/powerpc/platforms/85xx/tl_wdr4900_v1.c
+
+--- a/arch/powerpc/boot/Makefile
++++ b/arch/powerpc/boot/Makefile
+@@ -112,6 +112,7 @@ src-plat-$(CONFIG_PPC_POWERNV) += pserie
+ src-plat-$(CONFIG_PPC_IBM_CELL_BLADE) += pseries-head.S
+ src-plat-$(CONFIG_PPC_CELLEB) += pseries-head.S
+ src-plat-$(CONFIG_PPC_CELL_QPACE) += pseries-head.S
++src-plat-$(CONFIG_TL_WDR4900_V1) += cuboot-tl-wdr4900-v1.c
+ 
+ src-wlib := $(sort $(src-wlib-y))
+ src-plat := $(sort $(src-plat-y))
+@@ -296,6 +297,7 @@ image-$(CONFIG_TQM8555)			+= cuImage.tqm
+ image-$(CONFIG_TQM8560)			+= cuImage.tqm8560
+ image-$(CONFIG_SBC8548)			+= cuImage.sbc8548
+ image-$(CONFIG_KSI8560)			+= cuImage.ksi8560
++image-$(CONFIG_TL_WDR4900_V1)		+= cuImage.tl-wdr4900-v1
+ 
+ # Board ports in arch/powerpc/platform/embedded6xx/Kconfig
+ image-$(CONFIG_STORCENTER)		+= cuImage.storcenter
+--- /dev/null
++++ b/arch/powerpc/boot/cuboot-tl-wdr4900-v1.c
+@@ -0,0 +1,164 @@
++/*
++ * U-Boot compatibility wrapper for the TP-Link TL-WDR4900 v1 board
++ *
++ * Copyright (c) 2013 Gabor Juhos <juhosg@openwrt.org>
++ *
++ * Based on:
++ *  cuboot-85xx.c
++ *     Author: Scott Wood <scottwood@freescale.com>
++ *     Copyright (c) 2007 Freescale Semiconductor, Inc.
++ *
++ *  simpleboot.c
++ *     Authors: Scott Wood <scottwood@freescale.com>
++ *              Grant Likely <grant.likely@secretlab.ca>
++ *     Copyright (c) 2007 Freescale Semiconductor, Inc.
++ *     Copyright (c) 2008 Secret Lab Technologies Ltd.
++ *
++ * This program is free software; you can redistribute it and/or modify it
++ * under the terms of the GNU General Public License version 2 as published
++ * by the Free Software Foundation.
++ */
++
++#include "ops.h"
++#include "types.h"
++#include "io.h"
++#include "stdio.h"
++#include <libfdt.h>
++
++BSS_STACK(4*1024);
++
++static unsigned long bus_freq;
++static unsigned long int_freq;
++static u64 mem_size;
++static unsigned char enetaddr[6];
++
++static void process_boot_dtb(void *boot_dtb)
++{
++	const u32 *na, *ns, *reg, *val32;
++	const char *path;
++	u64 memsize64;
++	int node, size, i;
++
++	/* Make sure FDT blob is sane */
++	if (fdt_check_header(boot_dtb) != 0)
++		fatal("Invalid device tree blob\n");
++
++	/* Find the #address-cells and #size-cells properties */
++	node = fdt_path_offset(boot_dtb, "/");
++	if (node < 0)
++		fatal("Cannot find root node\n");
++	na = fdt_getprop(boot_dtb, node, "#address-cells", &size);
++	if (!na || (size != 4))
++		fatal("Cannot find #address-cells property");
++
++	ns = fdt_getprop(boot_dtb, node, "#size-cells", &size);
++	if (!ns || (size != 4))
++		fatal("Cannot find #size-cells property");
++
++	/* Find the memory range */
++	node = fdt_node_offset_by_prop_value(boot_dtb, -1, "device_type",
++					     "memory", sizeof("memory"));
++	if (node < 0)
++		fatal("Cannot find memory node\n");
++	reg = fdt_getprop(boot_dtb, node, "reg", &size);
++	if (size < (*na+*ns) * sizeof(u32))
++		fatal("cannot get memory range\n");
++
++	/* Only interested in memory based at 0 */
++	for (i = 0; i < *na; i++)
++		if (*reg++ != 0)
++			fatal("Memory range is not based at address 0\n");
++
++	/* get the memsize and trucate it to under 4G on 32 bit machines */
++	memsize64 = 0;
++	for (i = 0; i < *ns; i++)
++		memsize64 = (memsize64 << 32) | *reg++;
++	if (sizeof(void *) == 4 && memsize64 >= 0x100000000ULL)
++		memsize64 = 0xffffffff;
++
++	mem_size = memsize64;
++
++	/* get clock frequencies */
++	node = fdt_node_offset_by_prop_value(boot_dtb, -1, "device_type",
++					     "cpu", sizeof("cpu"));
++	if (!node)
++		fatal("Cannot find cpu node\n");
++
++	val32 = fdt_getprop(boot_dtb, node, "clock-frequency", &size);
++	if (!val32 || (size != 4))
++		fatal("Cannot get clock frequency");
++
++	int_freq = *val32;
++
++	val32 = fdt_getprop(boot_dtb, node, "bus-frequency", &size);
++	if (!val32 || (size != 4))
++		fatal("Cannot get bus frequency");
++
++	bus_freq = *val32;
++
++	path = fdt_get_alias(boot_dtb, "ethernet0");
++	if (path) {
++		const void *p;
++
++		node = fdt_path_offset(boot_dtb, path);
++		if (node < 0)
++			fatal("Cannot find ethernet0 node");
++
++		p = fdt_getprop(boot_dtb, node, "mac-address", &size);
++		if (!p || (size < 6)) {
++			printf("no mac-address property, finding local\n\r");
++			p = fdt_getprop(boot_dtb, node, "local-mac-address", &size);
++		}
++
++		if (!p || (size < 6))
++			fatal("cannot get MAC addres");
++
++		memcpy(enetaddr, p, sizeof(enetaddr));
++	}
++}
++
++static void platform_fixups(void)
++{
++	void *soc;
++
++	dt_fixup_memory(0, mem_size);
++
++	dt_fixup_mac_address_by_alias("ethernet0", enetaddr);
++	dt_fixup_cpu_clocks(int_freq, bus_freq / 8, bus_freq);
++
++	/* Unfortunately, the specific model number is encoded in the
++	 * soc node name in existing dts files -- once that is fixed,
++	 * this can do a simple path lookup.
++	 */
++	soc = find_node_by_devtype(NULL, "soc");
++	if (soc) {
++		void *serial = NULL;
++
++		setprop(soc, "bus-frequency", &bus_freq, sizeof(bus_freq));
++
++		while ((serial = find_node_by_devtype(serial, "serial"))) {
++			if (get_parent(serial) != soc)
++				continue;
++
++			setprop(serial, "clock-frequency", &bus_freq,
++				sizeof(bus_freq));
++		}
++	}
++}
++
++void platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
++                   unsigned long r6, unsigned long r7)
++{
++	mem_size = 64 * 1024 * 1024;
++
++	simple_alloc_init(_end, mem_size - (u32)_end - 1024*1024, 32, 64);
++
++	fdt_init(_dtb_start);
++	serial_console_init();
++
++	printf("\n\r-- TL-WDR4900 v1 boot wrapper --\n\r");
++
++	process_boot_dtb((void *) r3);
++
++	platform_ops.fixups = platform_fixups;
++}
+--- /dev/null
++++ b/arch/powerpc/boot/dts/tl-wdr4900-v1.dts
+@@ -0,0 +1,212 @@
++/*
++ * TP-Link TL-WDR4900 v1 Device Tree Source
++ *
++ * Copyright 2013 Gabor Juhos <juhosg@openwrt.org>
++ *
++ * This program is free software; you can redistribute  it and/or modify it
++ * under  the terms of  the GNU General  Public License as published by the
++ * Free Software Foundation;  either version 2 of the  License, or (at your
++ * option) any later version.
++ */
++
++/include/ "fsl/p1010si-pre.dtsi"
++
++/ {
++	model = "TP-Link TL-WDR4900 v1";
++	compatible = "tp-link,TL-WDR4900v1";
++
++	chosen {
++		bootargs = "console=ttyS0,115200";
++/*
++		linux,stdout-path = "/soc@ffe00000/serial@4500";
++*/
++	};
++
++	aliases {
++		spi0 = &spi0;
++	};
++
++	memory {
++		device_type = "memory";
++	};
++
++	soc: soc@ffe00000 {
++		ranges = <0x0 0x0 0xffe00000 0x100000>;
++
++		spi0: spi@7000 {
++			flash@0 {
++				#address-cells = <1>;
++				#size-cells = <1>;
++				compatible = "spansion,s25fl129p1";
++				reg = <0>;
++				spi-max-frequency = <25000000>;
++
++				u-boot@0 {
++					reg = <0x0 0x0050000>;
++					label = "u-boot";
++					read-only;
++				};
++
++				dtb@50000 {
++					reg = <0x00050000 0x00010000>;
++					label = "dtb";
++					read-only;
++				};
++
++				kernel@60000 {
++					reg = <0x00060000 0x002a0000>;
++					label = "kernel";
++				};
++
++				rootfs@300000 {
++					reg = <0x00300000 0x00ce0000>;
++					label = "rootfs";
++				};
++
++				config@fe0000 {
++					reg = <0x00fe0000 0x00010000>;
++					label = "config";
++					read-only;
++				};
++
++				caldata@ff0000 {
++					reg = <0x00ff0000 0x00010000>;
++					label = "caldata";
++					read-only;
++				};
++
++				firmware@60000 {
++					reg = <0x00060000 0x00f80000>;
++					label = "firmware";
++				};
++			};
++		};
++
++		gpio0: gpio-controller@f000 {
++		};
++
++		usb@22000 {
++			phy_type = "utmi";
++			dr_mode = "host";
++		};
++
++		mdio@24000 {
++			phy0: ethernet-phy@0 {
++				reg = <0x0>;
++				qca,ar8327-initvals = <
++					0x00004 0x07600000 /* PAD0_MODE */
++					0x00008 0x00000000 /* PAD5_MODE */
++					0x0000c 0x01000000 /* PAD6_MODE */
++					0x00010 0x40000000 /* POWER_ON_STRIP */
++					0x00050 0xcf35cf35 /* LED_CTRL0 */
++					0x00054 0xcf35cf35 /* LED_CTRL1 */
++					0x00058 0xcf35cf35 /* LED_CTRL2 */
++					0x0005c 0x03ffff00 /* LED_CTRL3 */
++					0x0007c 0x0000007e /* PORT0_STATUS */
++				>;
++			};
++		};
++
++		mdio@25000 {
++			status = "disabled";
++		};
++
++		mdio@26000 {
++			status = "disabled";
++		};
++
++		enet0: ethernet@b0000 {
++			phy-handle = <&phy0>;
++			phy-connection-type = "rgmii-id";
++		};
++
++		enet1: ethernet@b1000 {
++			status = "disabled";
++		};
++
++		enet2: ethernet@b2000 {
++			status = "disabled";
++		};
++
++		sdhc@2e000 {
++			status = "disabled";
++		};
++
++		serial1: serial@4600 {
++			status = "disabled";
++		};
++
++		can0: can@1c000 {
++			status = "disabled";
++		};
++
++		can1: can@1d000 {
++			status = "disabled";
++		};
++	};
++
++	pci0: pcie@ffe09000 {
++		reg = <0 0xffe09000 0 0x1000>;
++		ranges = <0x2000000 0x0 0xa0000000 0 0xa0000000 0x0 0x20000000
++			  0x1000000 0x0 0x00000000 0 0xffc10000 0x0 0x10000>;
++		pcie@0 {
++			ranges = <0x2000000 0x0 0xa0000000
++				  0x2000000 0x0 0xa0000000
++				  0x0 0x20000000
++
++				  0x1000000 0x0 0x0
++				  0x1000000 0x0 0x0
++				  0x0 0x100000>;
++		};
++	};
++
++	pci1: pcie@ffe0a000 {
++		reg = <0 0xffe0a000 0 0x1000>;
++		ranges = <0x2000000 0x0 0x80000000 0 0x80000000 0x0 0x20000000
++			  0x1000000 0x0 0x00000000 0 0xffc00000 0x0 0x10000>;
++		pcie@0 {
++			ranges = <0x2000000 0x0 0x80000000
++				  0x2000000 0x0 0x80000000
++				  0x0 0x20000000
++
++				  0x1000000 0x0 0x0
++				  0x1000000 0x0 0x0
++				  0x0 0x100000>;
++		};
++	};
++
++	ifc: ifc@ffe1e000 {
++		status = "disabled";
++	};
++
++	leds {
++		compatible = "gpio-leds";
++
++		system {
++			gpios = <&gpio0 2 1>; /* active low */
++			label = "tp-link:blue:system";
++		};
++
++		usb1 {
++			gpios = <&gpio0 3 1>; /* active low */
++			label = "tp-link:green:usb1";
++		};
++
++		usb2 {
++			gpios = <&gpio0 4 1>; /* active low */
++			label = "tp-link:green:usb2";
++		};
++	};
++
++	buttons {
++		compatible = "gpio-keys";
++
++		reset {
++			label = "Reset button";
++			gpios = <&gpio0 5 1>; /* active low */
++			linux,code = <0x198>; /* KEY_RESTART */
++		};
++	};
++};
++
++/include/ "fsl/p1010si-post.dtsi"
+--- a/arch/powerpc/boot/wrapper
++++ b/arch/powerpc/boot/wrapper
+@@ -218,6 +218,10 @@ cuboot*)
+     *-mpc85*|*-tqm85*|*-sbc85*)
+         platformo=$object/cuboot-85xx.o
+         ;;
++    *-tl-wdr4900-v1)
++        platformo=$object/cuboot-tl-wdr4900-v1.o
++	link_address='0x1000000'
++        ;;
+     *-amigaone)
+         link_address='0x800000'
+         ;;
+--- a/arch/powerpc/platforms/85xx/Kconfig
++++ b/arch/powerpc/platforms/85xx/Kconfig
+@@ -168,6 +168,17 @@ config STX_GP3
+ 	select CPM2
+ 	select DEFAULT_UIMAGE
+ 
++config TL_WDR4900_V1
++	bool "TP-Link TL-WDR4900 v1"
++	select DEFAULT_UIMAGE
++	select ARCH_REQUIRE_GPIOLIB
++	select GPIO_MPC8XXX
++	help
++	  This option enables support for the TP-Link TL-WDR4900 v1 board.
++
++	  This board is a Concurrent Dual-Band wireless router with a
++	  Freescale P1014 SoC.
++
+ config TQM8540
+ 	bool "TQ Components TQM8540"
+ 	help
+--- a/arch/powerpc/platforms/85xx/Makefile
++++ b/arch/powerpc/platforms/85xx/Makefile
+@@ -23,6 +23,7 @@ obj-$(CONFIG_TWR_P102x)   += twr_p102x.o
+ obj-$(CONFIG_CORENET_GENERIC)   += corenet_generic.o
+ obj-$(CONFIG_STX_GP3)	  += stx_gp3.o
+ obj-$(CONFIG_TQM85xx)	  += tqm85xx.o
++obj-$(CONFIG_TL_WDR4900_V1) += tl_wdr4900_v1.o
+ obj-$(CONFIG_SBC8548)     += sbc8548.o
+ obj-$(CONFIG_PPA8548)     += ppa8548.o
+ obj-$(CONFIG_SOCRATES)    += socrates.o socrates_fpga_pic.o
+--- /dev/null
++++ b/arch/powerpc/platforms/85xx/tl_wdr4900_v1.c
+@@ -0,0 +1,145 @@
++/*
++ * TL-WDR4900 v1 board setup
++ *
++ * Copyright (c) 2013 Gabor Juhos <juhosg@openwrt.org>
++ *
++ * Based on:
++ *   p1010rdb.c:
++ *      P1010RDB Board Setup
++ *      Copyright 2011 Freescale Semiconductor Inc.
++ *
++ * This program is free software; you can redistribute  it and/or modify it
++ * under  the terms of  the GNU General  Public License as published by the
++ * Free Software Foundation;  either version 2 of the  License, or (at your
++ * option) any later version.
++ */
++
++#include <linux/stddef.h>
++#include <linux/kernel.h>
++#include <linux/pci.h>
++#include <linux/delay.h>
++#include <linux/interrupt.h>
++#include <linux/of_platform.h>
++#include <linux/ath9k_platform.h>
++#include <linux/leds.h>
++
++#include <asm/time.h>
++#include <asm/machdep.h>
++#include <asm/pci-bridge.h>
++#include <mm/mmu_decl.h>
++#include <asm/prom.h>
++#include <asm/udbg.h>
++#include <asm/mpic.h>
++
++#include <sysdev/fsl_soc.h>
++#include <sysdev/fsl_pci.h>
++
++#include "mpc85xx.h"
++
++void __init tl_wdr4900_v1_pic_init(void)
++{
++	struct mpic *mpic = mpic_alloc(NULL, 0, MPIC_BIG_ENDIAN |
++	  MPIC_SINGLE_DEST_CPU,
++	  0, 256, " OpenPIC  ");
++
++	BUG_ON(mpic == NULL);
++
++	mpic_init(mpic);
++}
++
++#ifdef CONFIG_PCI
++static struct gpio_led tl_wdr4900_v1_wmac_leds_gpio[] = {
++	{
++		.name		= "tp-link:blue:wps",
++		.gpio		= 1,
++		.active_low	= 1,
++	},
++};
++
++static struct ath9k_platform_data tl_wdr4900_v1_wmac0_data = {
++	.led_pin = 0,
++	.eeprom_name = "pci_wmac0.eeprom",
++	.leds = tl_wdr4900_v1_wmac_leds_gpio,
++	.num_leds = ARRAY_SIZE(tl_wdr4900_v1_wmac_leds_gpio),
++};
++
++static struct ath9k_platform_data tl_wdr4900_v1_wmac1_data = {
++	.led_pin = 0,
++	.eeprom_name = "pci_wmac1.eeprom",
++};
++
++static void tl_wdr4900_v1_pci_wmac_fixup(struct pci_dev *dev)
++{
++	if (!machine_is(tl_wdr4900_v1))
++		return;
++
++	if (dev->bus->number == 1 &&
++	    PCI_SLOT(dev->devfn) == 0) {
++		dev->dev.platform_data = &tl_wdr4900_v1_wmac0_data;
++		return;
++	}
++
++	if (dev->bus->number == 3 &&
++	    PCI_SLOT(dev->devfn) == 0 &&
++	    dev->device == 0xabcd) {
++		dev->dev.platform_data = &tl_wdr4900_v1_wmac1_data;
++
++		/*
++		 * The PCI header of the AR9381 chip is not programmed
++		 * correctly by the bootloader and the device uses wrong
++		 * data due to that. Replace the broken values with the
++		 * correct ones.
++		 */
++		dev->device = 0x30;
++		dev->class = 0x028000;
++
++		pr_info("pci %s: AR9381 fixup applied\n", pci_name(dev));
++	}
++}
++
++DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_ATHEROS, PCI_ANY_ID,
++			tl_wdr4900_v1_pci_wmac_fixup);
++#endif /* CONFIG_PCI */
++
++/*
++ * Setup the architecture
++ */
++static void __init tl_wdr4900_v1_setup_arch(void)
++{
++	if (ppc_md.progress)
++		ppc_md.progress("tl_wdr4900_v1_setup_arch()", 0);
++
++	fsl_pci_assign_primary();
++
++	printk(KERN_INFO "TL-WDR4900 v1 board from TP-Link\n");
++}
++
++machine_arch_initcall(tl_wdr4900_v1, mpc85xx_common_publish_devices);
++machine_arch_initcall(tl_wdr4900_v1, swiotlb_setup_bus_notifier);
++
++/*
++ * Called very early, device-tree isn't unflattened
++ */
++static int __init tl_wdr4900_v1_probe(void)
++{
++	unsigned long root = of_get_flat_dt_root();
++
++	if (of_flat_dt_is_compatible(root, "tp-link,TL-WDR4900v1"))
++		return 1;
++
++	return 0;
++}
++
++define_machine(tl_wdr4900_v1) {
++	.name			= "Freescale P1014",
++	.probe			= tl_wdr4900_v1_probe,
++	.setup_arch		= tl_wdr4900_v1_setup_arch,
++	.init_IRQ		= tl_wdr4900_v1_pic_init,
++#ifdef CONFIG_PCI
++	.pcibios_fixup_bus	= fsl_pcibios_fixup_bus,
++#endif
++	.get_irq		= mpic_get_irq,
++	.restart		= fsl_rstcr_restart,
++	.calibrate_decr		= generic_calibrate_decr,
++	.progress		= udbg_progress,
++};
diff --git a/target/linux/mpc85xx/patches-3.18/150-powerpc-85xx-fix-etsec-ranges.patch b/target/linux/mpc85xx/patches-3.18/150-powerpc-85xx-fix-etsec-ranges.patch
new file mode 100644
index 0000000..1b93356
--- /dev/null
+++ b/target/linux/mpc85xx/patches-3.18/150-powerpc-85xx-fix-etsec-ranges.patch
@@ -0,0 +1,30 @@
+--- a/arch/powerpc/boot/dts/fsl/pq3-etsec2-0.dtsi
++++ b/arch/powerpc/boot/dts/fsl/pq3-etsec2-0.dtsi
+@@ -50,6 +50,7 @@ ethernet@b0000 {
+ 	fsl,num_tx_queues = <0x8>;
+ 	fsl,magic-packet;
+ 	local-mac-address = [ 00 00 00 00 00 00 ];
++	ranges;
+ 
+ 	queue-group@b0000 {
+ 		#address-cells = <1>;
+--- a/arch/powerpc/boot/dts/fsl/pq3-etsec2-1.dtsi
++++ b/arch/powerpc/boot/dts/fsl/pq3-etsec2-1.dtsi
+@@ -50,6 +50,7 @@ ethernet@b1000 {
+ 	fsl,num_tx_queues = <0x8>;
+ 	fsl,magic-packet;
+ 	local-mac-address = [ 00 00 00 00 00 00 ];
++	ranges;
+ 
+ 	queue-group@b1000 {
+ 		#address-cells = <1>;
+--- a/arch/powerpc/boot/dts/fsl/pq3-etsec2-2.dtsi
++++ b/arch/powerpc/boot/dts/fsl/pq3-etsec2-2.dtsi
+@@ -49,6 +49,7 @@ ethernet@b2000 {
+ 	fsl,num_tx_queues = <0x8>;
+ 	fsl,magic-packet;
+ 	local-mac-address = [ 00 00 00 00 00 00 ];
++	ranges;
+ 
+ 	queue-group@b2000 {
+ 		#address-cells = <1>;
diff --git a/target/linux/mpc85xx/patches-3.18/210-spi-fsl-espi-preallocate-local-buffer.patch b/target/linux/mpc85xx/patches-3.18/210-spi-fsl-espi-preallocate-local-buffer.patch
new file mode 100644
index 0000000..7335f18
--- /dev/null
+++ b/target/linux/mpc85xx/patches-3.18/210-spi-fsl-espi-preallocate-local-buffer.patch
@@ -0,0 +1,147 @@
+From: Gabor Juhos <juhosg@openwrt.org>
+Subject: spi-fsl-espi: avoid frequent high order allocations
+
+The driver allocates 64KiB of memory fro a local buffer before
+each transfer and releases that afterwards. When the memory is
+fragmented this allocation often fails and causes a warning like
+this:
+
+  kworker/u2:2: page allocation failure: order:4, mode:0x10c0d0
+  CPU: 0 PID: 7011 Comm: kworker/u2:2 Not tainted 3.10.24 #1
+  Workqueue: ffe07000.spi mpc8xxx_spi_work
+  Call Trace:
+  [c1c6dcf0] [c0006914] show_stack+0x50/0x170 (unreliable)
+  [c1c6dd30] [c0259858] dump_stack+0x24/0x34
+  [c1c6dd40] [c00672e8] warn_alloc_failed+0x120/0x13c
+  [c1c6dd90] [c0069920] __alloc_pages_nodemask+0x574/0x5c8
+  [c1c6de20] [c0069990] __get_free_pages+0x1c/0x4c
+  [c1c6de30] [c0185174] fsl_espi_do_one_msg+0x128/0x2a0
+  [c1c6de90] [c0184290] mpc8xxx_spi_work+0x50/0x7c
+  [c1c6dea0] [c0037af8] process_one_work+0x208/0x30c
+  [c1c6dec0] [c00387a0] worker_thread+0x20c/0x308
+  [c1c6def0] [c003de60] kthread+0xa4/0xa8
+  [c1c6df40] [c000c4bc] ret_from_kernel_thread+0x5c/0x64
+
+  m25p80 spi0.0: error -12 reading SR
+  end_request: I/O error, dev mtdblock3, sector 680
+  SQUASHFS error: squashfs_read_data failed to read block 0x54a4a
+  SQUASHFS error: Unable to read data cache entry [54a4a]
+
+Preallocate the buffer from the probe routine to avoid
+this.
+
+Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
+---
+ drivers/spi/spi-fsl-espi.c | 34 ++++++++++++++++------------------
+ drivers/spi/spi-fsl-lib.h  |  1 +
+ 2 files changed, 17 insertions(+), 18 deletions(-)
+
+--- a/drivers/spi/spi-fsl-espi.c
++++ b/drivers/spi/spi-fsl-espi.c
+@@ -329,17 +329,13 @@ static void fsl_espi_do_trans(struct spi
+ static void fsl_espi_cmd_trans(struct spi_message *m,
+ 				struct fsl_espi_transfer *trans, u8 *rx_buff)
+ {
++	struct spi_device *spi = m->spi;
++	struct mpc8xxx_spi *mspi = spi_master_get_devdata(spi->master);
+ 	struct spi_transfer *t;
+-	u8 *local_buf;
++	u8 *local_buf = mspi->local_buf;
+ 	int i = 0;
+ 	struct fsl_espi_transfer *espi_trans = trans;
+ 
+-	local_buf = kzalloc(SPCOM_TRANLEN_MAX, GFP_KERNEL);
+-	if (!local_buf) {
+-		espi_trans->status = -ENOMEM;
+-		return;
+-	}
+-
+ 	list_for_each_entry(t, &m->transfers, transfer_list) {
+ 		if (t->tx_buf) {
+ 			memcpy(local_buf + i, t->tx_buf, t->len);
+@@ -352,28 +348,23 @@ static void fsl_espi_cmd_trans(struct sp
+ 	fsl_espi_do_trans(m, espi_trans);
+ 
+ 	espi_trans->actual_length = espi_trans->len;
+-	kfree(local_buf);
+ }
+ 
+ static void fsl_espi_rw_trans(struct spi_message *m,
+ 				struct fsl_espi_transfer *trans, u8 *rx_buff)
+ {
++	struct spi_device *spi = m->spi;
++	struct mpc8xxx_spi *mspi = spi_master_get_devdata(spi->master);
+ 	struct fsl_espi_transfer *espi_trans = trans;
+ 	unsigned int n_tx = espi_trans->n_tx;
+ 	unsigned int n_rx = espi_trans->n_rx;
+ 	struct spi_transfer *t;
+-	u8 *local_buf;
++	u8 *local_buf = mspi->local_buf;
+ 	u8 *rx_buf = rx_buff;
+ 	unsigned int trans_len;
+ 	unsigned int addr;
+ 	int i, pos, loop;
+ 
+-	local_buf = kzalloc(SPCOM_TRANLEN_MAX, GFP_KERNEL);
+-	if (!local_buf) {
+-		espi_trans->status = -ENOMEM;
+-		return;
+-	}
+-
+ 	for (pos = 0, loop = 0; pos < n_rx; pos += trans_len, loop++) {
+ 		trans_len = n_rx - pos;
+ 		if (trans_len > SPCOM_TRANLEN_MAX - n_tx)
+@@ -407,8 +398,6 @@ static void fsl_espi_rw_trans(struct spi
+ 		else
+ 			espi_trans->actual_length += espi_trans->len;
+ 	}
+-
+-	kfree(local_buf);
+ }
+ 
+ static void fsl_espi_do_one_msg(struct spi_message *m)
+@@ -585,6 +574,7 @@ static irqreturn_t fsl_espi_irq(s32 irq,
+ static void fsl_espi_remove(struct mpc8xxx_spi *mspi)
+ {
+ 	iounmap(mspi->reg_base);
++	kfree(mspi->local_buf);
+ }
+ 
+ static struct spi_master * fsl_espi_probe(struct device *dev,
+@@ -619,10 +609,16 @@ static struct spi_master * fsl_espi_prob
+ 	mpc8xxx_spi->spi_do_one_msg = fsl_espi_do_one_msg;
+ 	mpc8xxx_spi->spi_remove = fsl_espi_remove;
+ 
++	mpc8xxx_spi->local_buf = kzalloc(SPCOM_TRANLEN_MAX, GFP_KERNEL);
++	if (!mpc8xxx_spi->local_buf) {
++		ret = -ENOMEM;
++		goto err_probe;
++	}
++
+ 	mpc8xxx_spi->reg_base = ioremap(mem->start, resource_size(mem));
+ 	if (!mpc8xxx_spi->reg_base) {
+ 		ret = -ENOMEM;
+-		goto err_probe;
++		goto free_buf;
+ 	}
+ 
+ 	reg_base = mpc8xxx_spi->reg_base;
+@@ -689,6 +685,8 @@ unreg_master:
+ 	free_irq(mpc8xxx_spi->irq, mpc8xxx_spi);
+ free_irq:
+ 	iounmap(mpc8xxx_spi->reg_base);
++free_buf:
++	kfree(mpc8xxx_spi->local_buf);
+ err_probe:
+ 	spi_master_put(master);
+ err:
+--- a/drivers/spi/spi-fsl-lib.h
++++ b/drivers/spi/spi-fsl-lib.h
+@@ -30,6 +30,7 @@ struct mpc8xxx_spi {
+ 	void *rx;
+ #ifdef CONFIG_SPI_FSL_ESPI
+ 	int len;
++	u8 *local_buf;
+ #endif
+ 
+ 	int subblock;