mpc85xx: add 3.14 kernel support for mpc85xx platform

This patch adds 3.14 kernel support for the mpc85xx platform.
Works fine here with a TL-WDR4900 which seems to be the only
supported device using this platform.
There might be differences depending on HW version, therefore
I'd ask others to test too.

Changes to 3.10
  missing config options added to 3.14 config file
  patch 001: rebased
  patch 100: rebased
  patch 110: rebased
  patch 120: rebased
  patch 130: rebased
  patch 140: minor adjustment
  patch 200: removed, change went upstream
  patch 210: rebased
  patch 220: removed, change went upstream
  patch 750: new, fixes an issue with ethernet port autoneg being
             disabled due to changes in kernel phy handling

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>

SVN-Revision: 43308

9 files changed, 1236 insertions, 0 deletions

diff --git a/target/linux/mpc85xx/config-3.14 b/target/linux/mpc85xx/config-3.14
new file mode 100644
index 0000000..ce85449
--- /dev/null
+++ b/target/linux/mpc85xx/config-3.14
@@ -0,0 +1,294 @@
+# 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_WALK_MEMORY=y
+CONFIG_ARCH_HAVE_NMI_SAFE_CMPXCHG=y
+CONFIG_ARCH_HIBERNATION_POSSIBLE=y
+CONFIG_ARCH_MAY_HAVE_PC_FDC=y
+# CONFIG_ARCH_NEEDS_CPU_IDLE_COUPLED is not set
+CONFIG_ARCH_REQUIRE_GPIOLIB=y
+CONFIG_ARCH_SUPPORTS_DEBUG_PAGEALLOC=y
+CONFIG_ARCH_SUPPORTS_MSI=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_CLONE_BACKWARDS=y
+CONFIG_CMDLINE="console=ttyS0,115200"
+CONFIG_CMDLINE_BOOL=y
+# CONFIG_CPM2 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_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=y
+CONFIG_HAS_RAPIDIO=y
+# CONFIG_HAVE_64BIT_ALIGNED_ACCESS is not set
+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_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_GENERIC_HARDIRQS=y
+CONFIG_HAVE_IDE=y
+CONFIG_HAVE_IOREMAP_PROT=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_KSI8560 is not set
+CONFIG_LEGACY_PTYS=y
+CONFIG_LEGACY_PTY_COUNT=256
+CONFIG_LOWMEM_CAM_NUM=3
+CONFIG_LOWMEM_SIZE=0x30000000
+CONFIG_LXT_PHY=y
+CONFIG_M25PXX_USE_FAST_READ=y
+# CONFIG_MATH_EMULATION is not set
+CONFIG_MDIO_BOARDINFO=y
+CONFIG_MIGRATION=y
+# CONFIG_MII is not set
+# 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_U3_HT_IRQS is not set
+# CONFIG_MPIC_WEIRD is not set
+# CONFIG_MTD_CFI is not set
+CONFIG_MTD_M25P80=y
+CONFIG_MTD_OF_PARTS=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_DEVICE=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_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_RDS is not set
+# CONFIG_P2041_RDB is not set
+# CONFIG_P3041_DS is not set
+# CONFIG_P4080_DS is not set
+# CONFIG_P5020_DS is not set
+# CONFIG_P5040_DS 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_CLOCK 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_WSP is not set
+# CONFIG_PPC_XICS is not set
+# CONFIG_PQ2ADS is not set
+# CONFIG_PREEMPT_RCU is not set
+CONFIG_PROC_DEVICETREE=y
+CONFIG_PROC_PAGE_MONITOR=y
+# CONFIG_PTP_1588_CLOCK_GIANFAR is not set
+CONFIG_QE_GPIO=y
+CONFIG_QUICC_ENGINE=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_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_UCC=y
+CONFIG_UCC_FAST=y
+CONFIG_UCC_GETH=y
+# CONFIG_UGETH_TX_ON_DEMAND is not set
+CONFIG_UIDGID_CONVERTED=y
+CONFIG_USB_ARCH_HAS_XHCI=y
+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
+CONFIG_CPU_BIG_ENDIAN=y
+# CONFIG_CPU_LITTLE_ENDIAN is not set
+CONFIG_MPIC_TIMER=y
+# CONFIG_C293_PCIE is not set
+# CONFIG_TWR_P102x is not set
+# CONFIG_CORENET_GENERIC is not set
diff --git a/target/linux/mpc85xx/patches-3.14/001-powerpc-85xx-add-gpio-keys-to-of-match-table.patch b/target/linux/mpc85xx/patches-3.14/001-powerpc-85xx-add-gpio-keys-to-of-match-table.patch
new file mode 100644
index 0000000..da88ced
--- /dev/null
+++ b/target/linux/mpc85xx/patches-3.14/001-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 struct of_device_id __initdata mpc85xx_common_ids[] = {
+ 	{ .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-3.14/100-fix_mpc8568e_mds.patch b/target/linux/mpc85xx/patches-3.14/100-fix_mpc8568e_mds.patch
new file mode 100644
index 0000000..4d06dcb
--- /dev/null
+++ b/target/linux/mpc85xx/patches-3.14/100-fix_mpc8568e_mds.patch
@@ -0,0 +1,34 @@
+--- 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>;
+diff --git a/arch/powerpc/boot/dts/mpc8568mds.dts b/arch/powerpc/boot/dts/mpc8568mds.dts
+index bead2b6..99ffa57 100644
+--- 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-3.14/110-fix_mpc8548_cds.patch b/target/linux/mpc85xx/patches-3.14/110-fix_mpc8548_cds.patch
new file mode 100644
index 0000000..460a94b
--- /dev/null
+++ b/target/linux/mpc85xx/patches-3.14/110-fix_mpc8548_cds.patch
@@ -0,0 +1,42 @@
+--- 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";
+diff --git a/arch/powerpc/boot/dts/mpc8548cds_32b.dts b/arch/powerpc/boot/dts/mpc8548cds_32b.dts
+index 6fd6316..375ed8b 100644
+--- 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-3.14/120-mpc8548_cds_i8259_noirq_init.patch b/target/linux/mpc85xx/patches-3.14/120-mpc8548_cds_i8259_noirq_init.patch
new file mode 100644
index 0000000..81b9193
--- /dev/null
+++ b/target/linux/mpc85xx/patches-3.14/120-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-3.14/130-mpc8548_cds_disable_i8259_irq.patch b/target/linux/mpc85xx/patches-3.14/130-mpc8548_cds_disable_i8259_irq.patch
new file mode 100644
index 0000000..7d9e63c
--- /dev/null
+++ b/target/linux/mpc85xx/patches-3.14/130-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-3.14/140-powerpc-85xx-tl-wdr4900-v1-support.patch b/target/linux/mpc85xx/patches-3.14/140-powerpc-85xx-tl-wdr4900-v1-support.patch
new file mode 100644
index 0000000..5cefaa9
--- /dev/null
+++ b/target/linux/mpc85xx/patches-3.14/140-powerpc-85xx-tl-wdr4900-v1-support.patch
@@ -0,0 +1,636 @@
+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
+
+diff --git a/arch/powerpc/boot/Makefile b/arch/powerpc/boot/Makefile
+index 90e9d95..663fd31 100644
+--- a/arch/powerpc/boot/Makefile
++++ b/arch/powerpc/boot/Makefile
+@@ -99,6 +99,8 @@ src-plat-$(CONFIG_EMBEDDED6xx) += cuboot-pq2.c cuboot-mpc7448hpc2.c \
+ src-plat-$(CONFIG_AMIGAONE) += cuboot-amigaone.c
+ src-plat-$(CONFIG_PPC_PS3) += ps3-head.S ps3-hvcall.S ps3.c
+ src-plat-$(CONFIG_EPAPR_BOOT) += epapr.c epapr-wrapper.c
++src-plat-$(CONFIG_TL_WDR4900_V1) += cuboot-tl-wdr4900-v1.c
++
+ 
+ src-wlib := $(sort $(src-wlib-y))
+ src-plat := $(sort $(src-plat-y))
+@@ -279,6 +281,7 @@ image-$(CONFIG_TQM8555)			+= cuImage.tqm8555
+ 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
+diff --git a/arch/powerpc/boot/cuboot-tl-wdr4900-v1.c b/arch/powerpc/boot/cuboot-tl-wdr4900-v1.c
+new file mode 100644
+index 0000000..095e777
+--- /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;
++}
+diff --git a/arch/powerpc/boot/dts/tl-wdr4900-v1.dts b/arch/powerpc/boot/dts/tl-wdr4900-v1.dts
+new file mode 100644
+index 0000000..49e516c
+--- /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"
+diff --git a/arch/powerpc/boot/wrapper b/arch/powerpc/boot/wrapper
+index d27a255..4b43e41 100755
+--- a/arch/powerpc/boot/wrapper
++++ b/arch/powerpc/boot/wrapper
+@@ -205,6 +205,10 @@ cuboot*)
+     *-mpc85*|*-tqm85*|*-sbc85*)
+         platformo=$object/cuboot-85xx.o
+         ;;
++    *-tl-wdr4900-v1)
++        platformo=$object/cuboot-tl-wdr4900-v1.o
++	link_address='0x1000000'
++        ;;
+     *-amigaone)
+         link_address='0x800000'
+         ;;
+diff --git a/arch/powerpc/platforms/85xx/Kconfig b/arch/powerpc/platforms/85xx/Kconfig
+index c17aae8..ead6513 100644
+--- a/arch/powerpc/platforms/85xx/Kconfig
++++ b/arch/powerpc/platforms/85xx/Kconfig
+@@ -159,6 +159,17 @@ config STX_GP3
+ 	select CPM2
+ 	select DEFAULT_UIMAGE
+ 
++config TL_WDR4900_V1
++	bool "TP-Link TL-WDR4900 v1"
++	select DEFAULT_UIMAGE
++	select ARCH_REQUIRE_GPIOLIB
++	select GPIO_MPC8XXX
++	help
++	  This option enables support for the TP-Link TL-WDR4900 v1 board.
++
++	  This board is a Concurrent Dual-Band wireless router with a
++	  Freescale P1014 SoC.
++
+ config TQM8540
+ 	bool "TQ Components TQM8540"
+ 	help
+diff --git a/arch/powerpc/platforms/85xx/Makefile b/arch/powerpc/platforms/85xx/Makefile
+index 25cebe7..14ca496 100644
+--- a/arch/powerpc/platforms/85xx/Makefile
++++ b/arch/powerpc/platforms/85xx/Makefile
+@@ -22,6 +22,7 @@ obj-$(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
+diff --git a/arch/powerpc/platforms/85xx/tl_wdr4900_v1.c b/arch/powerpc/platforms/85xx/tl_wdr4900_v1.c
+new file mode 100644
+index 0000000..95afa4d
+--- /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,
++};
+-- 
+2.1.3
+
diff --git a/target/linux/mpc85xx/patches-3.14/210-spi-fsl-espi-preallocate-local-buffer.patch b/target/linux/mpc85xx/patches-3.14/210-spi-fsl-espi-preallocate-local-buffer.patch
new file mode 100644
index 0000000..c095510
--- /dev/null
+++ b/target/linux/mpc85xx/patches-3.14/210-spi-fsl-espi-preallocate-local-buffer.patch
@@ -0,0 +1,154 @@
+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(-)
+
+diff --git a/drivers/spi/spi-fsl-espi.c b/drivers/spi/spi-fsl-espi.c
+index 428dc7a..5207176 100644
+--- a/drivers/spi/spi-fsl-espi.c
++++ b/drivers/spi/spi-fsl-espi.c
+@@ -334,17 +334,13 @@ static void fsl_espi_do_trans(struct spi_message *m,
+ 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);
+@@ -357,28 +353,23 @@ static void fsl_espi_cmd_trans(struct spi_message *m,
+ 	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)
+@@ -412,8 +403,6 @@ static void fsl_espi_rw_trans(struct spi_message *m,
+ 		else
+ 			espi_trans->actual_length += espi_trans->len;
+ 	}
+-
+-	kfree(local_buf);
+ }
+ 
+ static void fsl_espi_do_one_msg(struct spi_message *m)
+@@ -581,6 +570,7 @@ static irqreturn_t fsl_espi_irq(s32 irq, void *context_data)
+ 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,
+@@ -612,10 +602,16 @@ static struct spi_master * fsl_espi_probe(struct device *dev,
+ 	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;
+@@ -658,6 +654,8 @@ 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:
+diff --git a/drivers/spi/spi-fsl-lib.h b/drivers/spi/spi-fsl-lib.h
+index 52db693..8dda68b 100644
+--- 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;
+-- 
+2.1.3
+
diff --git a/target/linux/mpc85xx/patches-3.14/750-phy_reset_anenable.patch b/target/linux/mpc85xx/patches-3.14/750-phy_reset_anenable.patch
new file mode 100644
index 0000000..bb30fe9
--- /dev/null
+++ b/target/linux/mpc85xx/patches-3.14/750-phy_reset_anenable.patch
@@ -0,0 +1,30 @@
+From b4da0f2e86748379fc43e82b83458eb054af8d19 Mon Sep 17 00:00:00 2001
+From: Heiner Kallweit <hkallweit1@gmail.com>
+Date: Mon, 17 Nov 2014 21:41:56 +0100
+Subject: net: phy: set BMCR_ANENABLE when phy is reset
+
+Kernel 3.14 introduced an additional reset of the switch phys
+causing autonegotiation to be disabled.
+Change reset command to enable autonegotiation.
+ 
+Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
+---
+ drivers/net/phy/phy_device.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/drivers/net/phy/phy_device.c b/drivers/net/phy/phy_device.c
+index 25f7419..98445e6 100644
+--- a/drivers/net/phy/phy_device.c
++++ b/drivers/net/phy/phy_device.c
+@@ -539,7 +539,7 @@ int phy_init_hw(struct phy_device *phydev)
+ 	if (!phydev->drv || !phydev->drv->config_init)
+ 		return 0;
+ 
+-	ret = phy_write(phydev, MII_BMCR, BMCR_RESET);
++	ret = phy_write(phydev, MII_BMCR, BMCR_RESET | BMCR_ANENABLE);
+ 	if (ret < 0)
+ 		return ret;
+ 
+-- 
+2.1.3
+