mpc85xx: update to linux 4.4, remove unnecessary patches

Signed-off-by: Felix Fietkau <nbd@openwrt.org>

SVN-Revision: 48297

12 files changed, 53 insertions, 186 deletions

diff --git a/target/linux/mpc85xx/Makefile b/target/linux/mpc85xx/Makefile
index 5f3ad6c3d4..a32be907a9 100644
--- a/target/linux/mpc85xx/Makefile
+++ b/target/linux/mpc85xx/Makefile
@@ -14,7 +14,7 @@ FEATURES:=squashfs
 MAINTAINER:=Imre Kaloz <kaloz@openwrt.org>
 SUBTARGETS=generic p1020
 
-KERNEL_PATCHVER:=3.18
+KERNEL_PATCHVER:=4.4
 
 include $(INCLUDE_DIR)/target.mk
 
diff --git a/target/linux/mpc85xx/config-3.18 b/target/linux/mpc85xx/config-4.4
index 4605f2742c..a511afd775 100644
--- a/target/linux/mpc85xx/config-3.18
+++ b/target/linux/mpc85xx/config-4.4
@@ -6,6 +6,9 @@ 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_DMA_SET_COHERENT_MASK=y
+CONFIG_ARCH_HAS_ELF_RANDOMIZE=y
+CONFIG_ARCH_HAS_GCOV_PROFILE_ALL=y
 CONFIG_ARCH_HAS_ILOG2_U32=y
 CONFIG_ARCH_HAS_SG_CHAIN=y
 CONFIG_ARCH_HAS_WALK_MEMORY=y
@@ -35,8 +38,13 @@ 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_AES_PPC_SPE is not set
+# CONFIG_CRYPTO_MD5_PPC is not set
+CONFIG_CRYPTO_RNG2=y
 # CONFIG_CRYPTO_SHA1_PPC is not set
+# CONFIG_CRYPTO_SHA1_PPC_SPE is not set
+# CONFIG_CRYPTO_SHA256_PPC_SPE is not set
+CONFIG_CRYPTO_WORKQUEUE=y
 CONFIG_DEBUG_BUGVERBOSE=y
 CONFIG_DEFAULT_UIMAGE=y
 CONFIG_DEVKMEM=y
@@ -45,6 +53,8 @@ CONFIG_DTC=y
 # CONFIG_E200 is not set
 CONFIG_E500=y
 CONFIG_EARLY_PRINTK=y
+CONFIG_EDAC_ATOMIC_SCRUB=y
+CONFIG_EDAC_SUPPORT=y
 CONFIG_ENABLE_MUST_CHECK=y
 # CONFIG_EPAPR_BOOT is not set
 CONFIG_ETHERNET_PACKET_MANGLE=y
@@ -59,7 +69,6 @@ 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
@@ -88,10 +97,13 @@ 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_BITREVERSE is not set
 CONFIG_HAVE_ARCH_JUMP_LABEL=y
 CONFIG_HAVE_ARCH_KGDB=y
+CONFIG_HAVE_ARCH_SECCOMP_FILTER=y
 CONFIG_HAVE_ARCH_TRACEHOOK=y
 # CONFIG_HAVE_BOOTMEM_INFO_NODE is not set
+CONFIG_HAVE_BPF_JIT=y
 CONFIG_HAVE_DEBUG_KMEMLEAK=y
 CONFIG_HAVE_DEBUG_STACKOVERFLOW=y
 CONFIG_HAVE_DMA_API_DEBUG=y
@@ -102,6 +114,7 @@ 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_RCU_GUP=y
 CONFIG_HAVE_IDE=y
 CONFIG_HAVE_IOREMAP_PROT=y
 CONFIG_HAVE_IRQ_EXIT_ON_IRQ_STACK=y
@@ -157,11 +170,13 @@ CONFIG_MPIC_TIMER=y
 # CONFIG_MTD_CFI is not set
 CONFIG_MTD_M25P80=y
 CONFIG_MTD_SPI_NOR=y
+# CONFIG_MVME2500 is not set
 # 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_NO_BOOTMEM=y
 CONFIG_NR_IRQS=512
 CONFIG_OF=y
 CONFIG_OF_ADDRESS=y
@@ -182,7 +197,6 @@ 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
@@ -193,6 +207,7 @@ CONFIG_PCIEASPM_DEFAULT=y
 # CONFIG_PCIEASPM_POWERSAVE is not set
 CONFIG_PCIEPORTBUS=y
 CONFIG_PCI_DOMAINS=y
+CONFIG_PGTABLE_LEVELS=2
 CONFIG_PHYLIB=y
 CONFIG_PHYSICAL_ALIGN=0x04000000
 CONFIG_PHYSICAL_START=0x00000000
@@ -229,7 +244,6 @@ 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
@@ -239,7 +253,6 @@ 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
@@ -249,6 +262,7 @@ CONFIG_RAS=y
 CONFIG_RWSEM_XCHGADD_ALGORITHM=y
 # CONFIG_SBC8548 is not set
 CONFIG_SCHED_HRTICK=y
+# CONFIG_SCHED_INFO is not set
 # CONFIG_SCSI_DMA is not set
 CONFIG_SERIAL_8250_EXTENDED=y
 CONFIG_SERIAL_8250_FSL=y
@@ -267,8 +281,11 @@ CONFIG_SPI=y
 CONFIG_SPI_FSL_ESPI=y
 CONFIG_SPI_FSL_LIB=y
 CONFIG_SPI_MASTER=y
+CONFIG_SRCU=y
+# CONFIG_STRICT_MM_TYPECHECKS is not set
 # CONFIG_STRIP_ASM_SYMS is not set
 # CONFIG_STX_GP3 is not set
+# CONFIG_SUNXI_SRAM is not set
 CONFIG_SWCONFIG=y
 CONFIG_SWIOTLB=y
 CONFIG_SYSCTL_EXCEPTION_TRACE=y
@@ -286,6 +303,7 @@ CONFIG_UCC_FAST=y
 CONFIG_UCC_GETH=y
 # CONFIG_UGETH_TX_ON_DEMAND is not set
 CONFIG_USB_SUPPORT=y
+CONFIG_VDSO32=y
 CONFIG_VM_EVENT_COUNTERS=y
 CONFIG_WORD_SIZE=32
 # CONFIG_XES_MPC85xx is not set
diff --git a/target/linux/mpc85xx/image/Makefile b/target/linux/mpc85xx/image/Makefile
index 0ec067e064..3c3f100d19 100644
--- a/target/linux/mpc85xx/image/Makefile
+++ b/target/linux/mpc85xx/image/Makefile
@@ -21,12 +21,12 @@ endef
 
 zImage:=$(BIN_DIR)/$(IMG_PREFIX)-zImage
 
-DTS_TARGETS = mpc8548cds_32b p1010rdb-pa tl-wdr4900-v1 p1020rdb
+DTS_TARGETS = fsl/p1010rdb-pa tl-wdr4900-v1 fsl/p1020rdb
 
 define Image/BuildKernel
 	cp $(KDIR)/zImage $(BIN_DIR)/$(IMG_PREFIX)-zImage
 	$(foreach dts,$(DTS_TARGETS),
-		$(LINUX_DIR)/scripts/dtc/dtc -I dts -O dtb $(DTS_DIR)/$(dts).dts > $(BIN_DIR)/$(IMG_PREFIX)-$(dts).fdt
+		$(LINUX_DIR)/scripts/dtc/dtc -I dts -O dtb $(DTS_DIR)/$(dts).dts > $(BIN_DIR)/$(IMG_PREFIX)-$(notdir $(dts)).fdt
 	)
 endef
 
diff --git a/target/linux/mpc85xx/p1020/config-default b/target/linux/mpc85xx/p1020/config-default
index 29c7ebbf6c..1d15b32b67 100644
--- a/target/linux/mpc85xx/p1020/config-default
+++ b/target/linux/mpc85xx/p1020/config-default
@@ -1,21 +1,17 @@
-CONFIG_ARCH_MIGHT_HAVE_PC_PARPORT=y
-CONFIG_ARCH_MIGHT_HAVE_PC_SERIO=y
-# CONFIG_ARCH_RANDOM is not set
-CONFIG_ARCH_SUPPORTS_ATOMIC_RMW=y
+CONFIG_ARCH_HAS_TICK_BROADCAST=y
 CONFIG_CPU_RMAP=y
-# CONFIG_GENERIC_CSUM is not set
+CONFIG_GENERIC_CLOCKEVENTS_BROADCAST=y
 CONFIG_GENERIC_TBSYNC=y
-CONFIG_HAVE_DEBUG_STACKOVERFLOW=y
-CONFIG_HAVE_IRQ_EXIT_ON_IRQ_STACK=y
 CONFIG_HAVE_RCU_TABLE_FREE=y
+CONFIG_LOCK_SPIN_ON_OWNER=y
 CONFIG_MUTEX_SPIN_ON_OWNER=y
 CONFIG_NET_FLOW_LIMIT=y
 CONFIG_NR_CPUS=2
 CONFIG_RCU_STALL_COMMON=y
 CONFIG_RFS_ACCEL=y
 CONFIG_RPS=y
+CONFIG_RWSEM_SPIN_ON_OWNER=y
 CONFIG_SLUB_CPU_PARTIAL=y
 CONFIG_SMP=y
-CONFIG_STOP_MACHINE=y
 CONFIG_TREE_RCU=y
 CONFIG_XPS=y
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
deleted file mode 100644
index 993b5f71c3..0000000000
--- a/target/linux/mpc85xx/patches-3.18/100-fix_mpc8568e_mds.patch
+++ /dev/null
@@ -1,32 +0,0 @@
---- 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-3.18/101-net-gianfar-use-mtd-mac-address.patch b/target/linux/mpc85xx/patches-3.18/101-net-gianfar-use-mtd-mac-address.patch
deleted file mode 100644
index 1b7abc8780..0000000000
--- a/target/linux/mpc85xx/patches-3.18/101-net-gianfar-use-mtd-mac-address.patch
+++ /dev/null
@@ -1,19 +0,0 @@
---- a/drivers/net/ethernet/freescale/gianfar.c
-+++ b/drivers/net/ethernet/freescale/gianfar.c
-@@ -858,10 +858,13 @@ static int gfar_of_init(struct platform_
- 	if (stash_len || stash_idx)
- 		priv->device_flags |= FSL_GIANFAR_DEV_HAS_BUF_STASHING;
- 
--	mac_addr = of_get_mac_address(np);
-+	err = of_get_mac_address_mtd(np, dev->dev_addr);
-+	if (err) {
-+		mac_addr = of_get_mac_address(np);
- 
--	if (mac_addr)
--		memcpy(dev->dev_addr, mac_addr, ETH_ALEN);
-+		if (mac_addr)
-+			memcpy(dev->dev_addr, mac_addr, ETH_ALEN);
-+	}
- 
- 	if (model && !strcasecmp(model, "TSEC"))
- 		priv->device_flags |= FSL_GIANFAR_DEV_HAS_GIGABIT |
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
deleted file mode 100644
index b6dbd0d1b4..0000000000
--- a/target/linux/mpc85xx/patches-3.18/110-fix_mpc8548_cds.patch
+++ /dev/null
@@ -1,40 +0,0 @@
---- 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
deleted file mode 100644
index 81b9193691..0000000000
--- a/target/linux/mpc85xx/patches-3.18/120-mpc8548_cds_i8259_noirq_init.patch
+++ /dev/null
@@ -1,23 +0,0 @@
---- 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
deleted file mode 100644
index 7d9e63c750..0000000000
--- a/target/linux/mpc85xx/patches-3.18/130-mpc8548_cds_disable_i8259_irq.patch
+++ /dev/null
@@ -1,13 +0,0 @@
---- 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-3.18/001-powerpc-85xx-add-gpio-keys-to-of-match-table.patch b/target/linux/mpc85xx/patches-4.4/001-powerpc-85xx-add-gpio-keys-to-of-match-table.patch
index 5e5ab10daf..5e5ab10daf 100644
--- a/target/linux/mpc85xx/patches-3.18/001-powerpc-85xx-add-gpio-keys-to-of-match-table.patch
+++ b/target/linux/mpc85xx/patches-4.4/001-powerpc-85xx-add-gpio-keys-to-of-match-table.patch
diff --git a/target/linux/mpc85xx/patches-3.18/140-powerpc-85xx-tl-wdr4900-v1-support.patch b/target/linux/mpc85xx/patches-4.4/100-powerpc-85xx-tl-wdr4900-v1-support.patch
index 9b4815c0c6..e657ee514a 100644
--- a/target/linux/mpc85xx/patches-3.18/140-powerpc-85xx-tl-wdr4900-v1-support.patch
+++ b/target/linux/mpc85xx/patches-4.4/100-powerpc-85xx-tl-wdr4900-v1-support.patch
@@ -17,15 +17,15 @@ Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
 
 --- a/arch/powerpc/boot/Makefile
 +++ b/arch/powerpc/boot/Makefile
-@@ -112,6 +112,7 @@ src-plat-$(CONFIG_PPC_POWERNV) += pserie
+@@ -114,6 +114,7 @@ src-plat-$(CONFIG_PPC_PSERIES) += pserie
+ src-plat-$(CONFIG_PPC_POWERNV) += pseries-head.S
  src-plat-$(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
+@@ -297,6 +298,7 @@ image-$(CONFIG_TQM8555)			+= cuImage.tqm
  image-$(CONFIG_TQM8560)			+= cuImage.tqm8560
  image-$(CONFIG_SBC8548)			+= cuImage.sbc8548
  image-$(CONFIG_KSI8560)			+= cuImage.ksi8560
@@ -35,7 +35,7 @@ Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
  image-$(CONFIG_STORCENTER)		+= cuImage.storcenter
 --- a/arch/powerpc/boot/wrapper
 +++ b/arch/powerpc/boot/wrapper
-@@ -218,6 +218,10 @@ cuboot*)
+@@ -235,6 +235,10 @@ cuboot*)
      *-mpc85*|*-tqm85*|*-sbc85*)
          platformo=$object/cuboot-85xx.o
          ;;
diff --git a/target/linux/mpc85xx/patches-3.18/210-spi-fsl-espi-preallocate-local-buffer.patch b/target/linux/mpc85xx/patches-4.4/200-spi-fsl-espi-preallocate-local-buffer.patch
index 7335f18bf9..3239cdb850 100644
--- a/target/linux/mpc85xx/patches-3.18/210-spi-fsl-espi-preallocate-local-buffer.patch
+++ b/target/linux/mpc85xx/patches-4.4/200-spi-fsl-espi-preallocate-local-buffer.patch
@@ -31,6 +31,7 @@ Preallocate the buffer from the probe routine to avoid
 this.
 
 Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
+Signed-off-by: Felix Fietkau <nbd@openwrt.org>
 ---
  drivers/spi/spi-fsl-espi.c | 34 ++++++++++++++++------------------
  drivers/spi/spi-fsl-lib.h  |  1 +
@@ -38,7 +39,7 @@ Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
 
 --- 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
+@@ -332,17 +332,13 @@ 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)
  {
@@ -59,7 +60,7 @@ Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
  	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
+@@ -355,16 +351,17 @@ static void fsl_espi_cmd_trans(struct sp
  	fsl_espi_do_trans(m, espi_trans);
  
  	espi_trans->actual_length = espi_trans->len;
@@ -72,15 +73,16 @@ Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
 +	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;
+ 	unsigned int total_len = espi_trans->len;
  	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;
+@@ -373,12 +370,6 @@ static void fsl_espi_rw_trans(struct spi
+ 	unsigned int pos;
+ 	int i, loop;
  
 -	local_buf = kzalloc(SPCOM_TRANLEN_MAX, GFP_KERNEL);
 -	if (!local_buf) {
@@ -88,10 +90,10 @@ Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
 -		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
+ 	for (pos = 0, loop = 0; pos < total_len; pos += trans_len, loop++) {
+ 		trans_len = total_len - pos;
+ 
+@@ -424,8 +415,6 @@ static void fsl_espi_rw_trans(struct spi
  		else
  			espi_trans->actual_length += espi_trans->len;
  	}
@@ -99,47 +101,25 @@ Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
 -	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 int fsl_espi_do_one_msg(struct spi_master *master,
+@@ -673,6 +662,12 @@ static struct spi_master * fsl_espi_prob
  
- 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 = spi_master_get_devdata(master);
  
-+	mpc8xxx_spi->local_buf = kzalloc(SPCOM_TRANLEN_MAX, GFP_KERNEL);
++	mpc8xxx_spi->local_buf = devm_kzalloc(dev, 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:
+ 	mpc8xxx_spi->reg_base = devm_ioremap_resource(dev, mem);
+ 	if (IS_ERR(mpc8xxx_spi->reg_base)) {
+ 		ret = PTR_ERR(mpc8xxx_spi->reg_base);
 --- 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
+ #if IS_ENABLED(CONFIG_SPI_FSL_ESPI)
  	int len;
 +	u8 *local_buf;
  #endif