mxs: add support for 4.9 and switch over

I did not port the regulator and power patches from Stefan Wahren
because I talked to him and he told me that work on this is currently
stalled. And since AFAIK nothing depends on these patches, leaving them
out seems reasonable.

I build minimum default configurations and run-tested them on both
I2SE Duckbill devices and Olimex Olinuxino Maxi boards successfully [1].

[1] Tested:
- debug uart is working
- boot without any obvious kernel problem
- network is coming up and data transfer is possible
- Olinuxino: USB detects a plugged-in pen drive

Signed-off-by: Michael Heimpold <mhei@heimpold.de>
[refreshed config and patches]
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>

3 files changed, 348 insertions, 1 deletions

diff --git a/target/linux/mxs/Makefile b/target/linux/mxs/Makefile
index 447c3336f4..29c879f13a 100644
--- a/target/linux/mxs/Makefile
+++ b/target/linux/mxs/Makefile
@@ -13,7 +13,7 @@ FEATURES:=ext4 rtc usb gpio
 CPU_TYPE:=arm926ej-s
 
 MAINTAINER:=Zoltan HERPAI <wigyori@uid0.hu>
-KERNEL_PATCHVER:=4.4
+KERNEL_PATCHVER:=4.9
 KERNELNAME:=zImage dtbs
 
 define Target/Description
diff --git a/target/linux/mxs/config-4.9 b/target/linux/mxs/config-4.9
new file mode 100644
index 0000000000..f94d1e3ee4
--- /dev/null
+++ b/target/linux/mxs/config-4.9
@@ -0,0 +1,296 @@
+CONFIG_ALIGNMENT_TRAP=y
+CONFIG_ARCH_CLOCKSOURCE_DATA=y
+CONFIG_ARCH_HAS_ELF_RANDOMIZE=y
+CONFIG_ARCH_HAS_GCOV_PROFILE_ALL=y
+CONFIG_ARCH_HAS_SG_CHAIN=y
+CONFIG_ARCH_HAVE_CUSTOM_GPIO_H=y
+CONFIG_ARCH_HIBERNATION_POSSIBLE=y
+CONFIG_ARCH_MIGHT_HAVE_PC_PARPORT=y
+CONFIG_ARCH_MULTIPLATFORM=y
+CONFIG_ARCH_MULTI_CPU_AUTO=y
+# CONFIG_ARCH_MULTI_V4 is not set
+# CONFIG_ARCH_MULTI_V4T is not set
+CONFIG_ARCH_MULTI_V4_V5=y
+CONFIG_ARCH_MULTI_V5=y
+CONFIG_ARCH_MXS=y
+CONFIG_ARCH_NR_GPIO=0
+# CONFIG_ARCH_SELECT_MEMORY_MODEL is not set
+# CONFIG_ARCH_SPARSEMEM_DEFAULT is not set
+CONFIG_ARCH_SUPPORTS_ATOMIC_RMW=y
+CONFIG_ARCH_SUPPORTS_UPROBES=y
+CONFIG_ARCH_SUSPEND_POSSIBLE=y
+CONFIG_ARCH_USE_BUILTIN_BSWAP=y
+CONFIG_ARCH_USE_CMPXCHG_LOCKREF=y
+CONFIG_ARCH_WANT_GENERAL_HUGETLB=y
+CONFIG_ARCH_WANT_IPC_PARSE_VERSION=y
+CONFIG_ARM=y
+CONFIG_ARM_AMBA=y
+CONFIG_ARM_APPENDED_DTB=y
+CONFIG_ARM_ATAG_DTB_COMPAT=y
+# CONFIG_ARM_ATAG_DTB_COMPAT_CMDLINE_EXTEND is not set
+CONFIG_ARM_ATAG_DTB_COMPAT_CMDLINE_FROM_BOOTLOADER=y
+CONFIG_ARM_CPU_SUSPEND=y
+CONFIG_ARM_HAS_SG_CHAIN=y
+CONFIG_ARM_L1_CACHE_SHIFT=5
+CONFIG_ARM_PATCH_PHYS_VIRT=y
+# CONFIG_ARM_SP805_WATCHDOG is not set
+CONFIG_ARM_THUMB=y
+CONFIG_ATAGS=y
+CONFIG_AUTO_ZRELADDR=y
+# CONFIG_CACHE_L2X0 is not set
+CONFIG_CLKDEV_LOOKUP=y
+CONFIG_CLKSRC_MMIO=y
+CONFIG_CLKSRC_OF=y
+CONFIG_CLKSRC_PROBE=y
+CONFIG_CLONE_BACKWARDS=y
+CONFIG_CMDLINE="console=ttyAMA0,115200 root=/dev/mmcblk0p2 rw rootwait"
+CONFIG_CMDLINE_FROM_BOOTLOADER=y
+CONFIG_COMMON_CLK=y
+CONFIG_COREDUMP=y
+CONFIG_CPU_32v5=y
+CONFIG_CPU_ABRT_EV5TJ=y
+CONFIG_CPU_ARM926T=y
+# CONFIG_CPU_CACHE_ROUND_ROBIN is not set
+CONFIG_CPU_CACHE_VIVT=y
+CONFIG_CPU_COPY_V4WB=y
+CONFIG_CPU_CP15=y
+CONFIG_CPU_CP15_MMU=y
+# CONFIG_CPU_DCACHE_WRITETHROUGH is not set
+# CONFIG_CPU_ICACHE_DISABLE is not set
+CONFIG_CPU_IDLE=y
+CONFIG_CPU_IDLE_GOV_LADDER=y
+CONFIG_CPU_IDLE_GOV_MENU=y
+CONFIG_CPU_PABRT_LEGACY=y
+CONFIG_CPU_PM=y
+CONFIG_CPU_TLB_V4WBI=y
+CONFIG_CPU_USE_DOMAINS=y
+CONFIG_CRC16=y
+CONFIG_CROSS_MEMORY_ATTACH=y
+CONFIG_CRYPTO_CBC=y
+CONFIG_CRYPTO_CRC32C=y
+CONFIG_CRYPTO_DEV_MXS_DCP=y
+CONFIG_CRYPTO_ECB=y
+CONFIG_CRYPTO_HASH=y
+CONFIG_CRYPTO_HASH2=y
+CONFIG_CRYPTO_HW=y
+CONFIG_CRYPTO_MANAGER=y
+CONFIG_CRYPTO_MANAGER2=y
+CONFIG_CRYPTO_RNG2=y
+CONFIG_CRYPTO_WORKQUEUE=y
+CONFIG_DEBUG_LL_INCLUDE="mach/debug-macro.S"
+# CONFIG_DEBUG_UART_8250 is not set
+# CONFIG_DEBUG_USER is not set
+CONFIG_DMADEVICES=y
+CONFIG_DMA_ENGINE=y
+CONFIG_DMA_OF=y
+CONFIG_DTC=y
+CONFIG_EDAC_ATOMIC_SCRUB=y
+CONFIG_EDAC_SUPPORT=y
+CONFIG_EXT4_FS=y
+CONFIG_EXTCON=y
+CONFIG_FEC=y
+CONFIG_FIXED_PHY=y
+CONFIG_FIX_EARLYCON_MEM=y
+CONFIG_FRAME_POINTER=y
+CONFIG_FS_MBCACHE=y
+CONFIG_GENERIC_ALLOCATOR=y
+CONFIG_GENERIC_ATOMIC64=y
+CONFIG_GENERIC_BUG=y
+CONFIG_GENERIC_CLOCKEVENTS=y
+CONFIG_GENERIC_EARLY_IOREMAP=y
+CONFIG_GENERIC_IDLE_POLL_SETUP=y
+CONFIG_GENERIC_IO=y
+CONFIG_GENERIC_IRQ_CHIP=y
+CONFIG_GENERIC_IRQ_SHOW=y
+CONFIG_GENERIC_IRQ_SHOW_LEVEL=y
+CONFIG_GENERIC_PCI_IOMAP=y
+CONFIG_GENERIC_SCHED_CLOCK=y
+CONFIG_GENERIC_SMP_IDLE_THREAD=y
+CONFIG_GENERIC_STRNCPY_FROM_USER=y
+CONFIG_GENERIC_STRNLEN_USER=y
+# CONFIG_GIANFAR is not set
+CONFIG_GPIOLIB=y
+CONFIG_GPIO_GENERIC=y
+CONFIG_GPIO_GENERIC_PLATFORM=y
+CONFIG_GPIO_MXS=y
+CONFIG_GPIO_SYSFS=y
+CONFIG_HANDLE_DOMAIN_IRQ=y
+CONFIG_HARDIRQS_SW_RESEND=y
+CONFIG_HAS_DMA=y
+CONFIG_HAS_IOMEM=y
+CONFIG_HAS_IOPORT_MAP=y
+# CONFIG_HAVE_64BIT_ALIGNED_ACCESS is not set
+CONFIG_HAVE_ARCH_AUDITSYSCALL=y
+# CONFIG_HAVE_ARCH_BITREVERSE is not set
+CONFIG_HAVE_ARCH_JUMP_LABEL=y
+CONFIG_HAVE_ARCH_KGDB=y
+CONFIG_HAVE_ARCH_PFN_VALID=y
+CONFIG_HAVE_ARCH_SECCOMP_FILTER=y
+CONFIG_HAVE_ARCH_TRACEHOOK=y
+# CONFIG_HAVE_BOOTMEM_INFO_NODE is not set
+CONFIG_HAVE_CBPF_JIT=y
+CONFIG_HAVE_CC_STACKPROTECTOR=y
+CONFIG_HAVE_CLK=y
+CONFIG_HAVE_CLK_PREPARE=y
+CONFIG_HAVE_CONTEXT_TRACKING=y
+CONFIG_HAVE_C_RECORDMCOUNT=y
+CONFIG_HAVE_DEBUG_KMEMLEAK=y
+CONFIG_HAVE_DMA_API_DEBUG=y
+CONFIG_HAVE_DMA_CONTIGUOUS=y
+CONFIG_HAVE_DYNAMIC_FTRACE=y
+CONFIG_HAVE_FTRACE_MCOUNT_RECORD=y
+CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y
+CONFIG_HAVE_FUNCTION_TRACER=y
+CONFIG_HAVE_GENERIC_DMA_COHERENT=y
+CONFIG_HAVE_IRQ_TIME_ACCOUNTING=y
+CONFIG_HAVE_MEMBLOCK=y
+CONFIG_HAVE_MOD_ARCH_SPECIFIC=y
+CONFIG_HAVE_NET_DSA=y
+CONFIG_HAVE_OPROFILE=y
+CONFIG_HAVE_OPTPROBES=y
+CONFIG_HAVE_PERF_EVENTS=y
+CONFIG_HAVE_PERF_REGS=y
+CONFIG_HAVE_PERF_USER_STACK_DUMP=y
+CONFIG_HAVE_PROC_CPU=y
+CONFIG_HAVE_REGS_AND_STACK_ACCESS_API=y
+CONFIG_HAVE_SYSCALL_TRACEPOINTS=y
+CONFIG_HAVE_UID16=y
+CONFIG_HAVE_VIRT_CPU_ACCOUNTING_GEN=y
+CONFIG_HZ_FIXED=0
+CONFIG_HZ_PERIODIC=y
+CONFIG_I2C=y
+CONFIG_I2C_ALGOBIT=y
+CONFIG_I2C_ALGOPCA=y
+CONFIG_I2C_ALGOPCF=y
+CONFIG_I2C_BOARDINFO=y
+CONFIG_I2C_CHARDEV=y
+CONFIG_I2C_COMPAT=y
+CONFIG_I2C_MUX=y
+CONFIG_I2C_MUX_PINCTRL=y
+CONFIG_I2C_MXS=y
+CONFIG_IIO=y
+CONFIG_IIO_BUFFER=y
+CONFIG_IIO_KFIFO_BUF=y
+CONFIG_IIO_SYSFS_TRIGGER=y
+CONFIG_IIO_TRIGGER=y
+CONFIG_IIO_TRIGGERED_BUFFER=y
+CONFIG_INITRAMFS_SOURCE=""
+CONFIG_INPUT=y
+CONFIG_IOMMU_HELPER=y
+CONFIG_IRQCHIP=y
+CONFIG_IRQ_DOMAIN=y
+CONFIG_IRQ_FORCED_THREADING=y
+CONFIG_IRQ_MXS=y
+CONFIG_IRQ_WORK=y
+# CONFIG_ISDN is not set
+CONFIG_JBD2=y
+CONFIG_LIBFDT=y
+CONFIG_MDIO_BOARDINFO=y
+CONFIG_MIGHT_HAVE_PCI=y
+CONFIG_MMC=y
+CONFIG_MMC_BLOCK=y
+CONFIG_MMC_MXS=y
+CONFIG_MODULES_USE_ELF_REL=y
+# CONFIG_MTD_PHYSMAP_OF is not set
+CONFIG_MULTI_IRQ_HANDLER=y
+CONFIG_MXS_DMA=y
+CONFIG_MXS_LRADC=y
+CONFIG_MXS_TIMER=y
+CONFIG_NEED_DMA_MAP_STATE=y
+CONFIG_NEED_KUSER_HELPERS=y
+CONFIG_NEED_PER_CPU_KM=y
+CONFIG_NET_PTP_CLASSIFY=y
+CONFIG_NLS=y
+CONFIG_NO_BOOTMEM=y
+CONFIG_NVMEM=y
+CONFIG_NVMEM_MXS_OCOTP=y
+CONFIG_OF=y
+CONFIG_OF_ADDRESS=y
+CONFIG_OF_EARLY_FLATTREE=y
+CONFIG_OF_FLATTREE=y
+CONFIG_OF_GPIO=y
+CONFIG_OF_IRQ=y
+CONFIG_OF_MDIO=y
+CONFIG_OF_NET=y
+CONFIG_OF_RESERVED_MEM=y
+CONFIG_OLD_SIGACTION=y
+CONFIG_OLD_SIGSUSPEND3=y
+CONFIG_PAGE_OFFSET=0xC0000000
+# CONFIG_PCI_DOMAINS_GENERIC is not set
+# CONFIG_PCI_SYSCALL is not set
+CONFIG_PERF_USE_VMALLOC=y
+CONFIG_PGTABLE_LEVELS=2
+CONFIG_PHYLIB=y
+CONFIG_PINCTRL=y
+CONFIG_PINCTRL_IMX23=y
+CONFIG_PINCTRL_IMX28=y
+CONFIG_PINCTRL_MXS=y
+# CONFIG_PINCTRL_SINGLE is not set
+CONFIG_PM=y
+CONFIG_PM_CLK=y
+# CONFIG_PM_DEBUG is not set
+CONFIG_POWER_SUPPLY=y
+CONFIG_PPS=y
+CONFIG_PTP_1588_CLOCK=y
+CONFIG_RATIONAL=y
+# CONFIG_RCU_STALL_COMMON is not set
+CONFIG_REGMAP=y
+CONFIG_REGMAP_I2C=y
+CONFIG_REGMAP_MMIO=y
+CONFIG_REGMAP_SPI=y
+CONFIG_REGULATOR=y
+CONFIG_REGULATOR_FIXED_VOLTAGE=y
+CONFIG_REGULATOR_GPIO=y
+CONFIG_RTC_CLASS=y
+CONFIG_RTC_DRV_STMP=y
+CONFIG_RTC_I2C_AND_SPI=y
+CONFIG_RTC_MC146818_LIB=y
+CONFIG_RWSEM_XCHGADD_ALGORITHM=y
+# CONFIG_SCHED_INFO is not set
+# CONFIG_SCSI_DMA is not set
+CONFIG_SERIAL_8250_FSL=y
+CONFIG_SERIAL_AMBA_PL010=y
+CONFIG_SERIAL_AMBA_PL010_CONSOLE=y
+CONFIG_SERIAL_AMBA_PL011=y
+CONFIG_SERIAL_AMBA_PL011_CONSOLE=y
+CONFIG_SERIAL_MCTRL_GPIO=y
+CONFIG_SERIAL_MXS_AUART=y
+CONFIG_SERIAL_MXS_AUART_CONSOLE=y
+CONFIG_SMSC_PHY=y
+CONFIG_SOC_BUS=y
+CONFIG_SOC_IMX23=y
+CONFIG_SOC_IMX28=y
+CONFIG_SPARSE_IRQ=y
+CONFIG_SPI=y
+CONFIG_SPI_MASTER=y
+CONFIG_SPI_MXS=y
+CONFIG_SPLIT_PTLOCK_CPUS=999999
+CONFIG_SRCU=y
+CONFIG_STMP3XXX_RTC_WATCHDOG=y
+CONFIG_STMP_DEVICE=y
+CONFIG_SWIOTLB=y
+CONFIG_SWPHY=y
+CONFIG_SYS_SUPPORTS_APM_EMULATION=y
+CONFIG_TICK_CPU_ACCOUNTING=y
+CONFIG_UNCOMPRESS_INCLUDE="debug/uncompress.h"
+CONFIG_USB=y
+CONFIG_USB_CHIPIDEA=y
+CONFIG_USB_CHIPIDEA_HOST=y
+CONFIG_USB_CHIPIDEA_OF=y
+CONFIG_USB_CHIPIDEA_UDC=y
+CONFIG_USB_COMMON=y
+CONFIG_USB_EHCI_HCD=y
+# CONFIG_USB_EHCI_HCD_PLATFORM is not set
+CONFIG_USB_GADGET=y
+CONFIG_USB_MXS_PHY=y
+CONFIG_USB_OTG=y
+CONFIG_USB_PHY=y
+CONFIG_USB_SUPPORT=y
+CONFIG_USE_OF=y
+CONFIG_VECTORS_BASE=0xffff0000
+# CONFIG_VFP is not set
+CONFIG_WATCHDOG_CORE=y
+CONFIG_XZ_DEC_ARM=y
+CONFIG_XZ_DEC_BCJ=y
+CONFIG_ZBOOT_ROM_BSS=0
+CONFIG_ZBOOT_ROM_TEXT=0
diff --git a/target/linux/mxs/patches-4.9/110-crypto-mxsdcp-provide-importexport.patch b/target/linux/mxs/patches-4.9/110-crypto-mxsdcp-provide-importexport.patch
new file mode 100644
index 0000000000..e8d8852b03
--- /dev/null
+++ b/target/linux/mxs/patches-4.9/110-crypto-mxsdcp-provide-importexport.patch
@@ -0,0 +1,51 @@
+--- a/drivers/crypto/mxs-dcp.c
++++ b/drivers/crypto/mxs-dcp.c
+@@ -770,6 +770,24 @@ static void dcp_sha_cra_exit(struct cryp
+ {
+ }
+ 
++static int dcp_sha_export(struct ahash_request *req, void *out)
++{
++	struct dcp_sha_req_ctx *rctx = ahash_request_ctx(req);
++
++	memcpy(out, rctx, sizeof(struct dcp_sha_req_ctx));
++
++	return 0;
++}
++
++static int dcp_sha_import(struct ahash_request *req, const void *in)
++{
++	struct dcp_sha_req_ctx *rctx = ahash_request_ctx(req);
++
++	memcpy(rctx, in, sizeof(struct dcp_sha_req_ctx));
++
++	return 0;
++}
++
+ /* AES 128 ECB and AES 128 CBC */
+ static struct crypto_alg dcp_aes_algs[] = {
+ 	{
+@@ -829,8 +847,11 @@ static struct ahash_alg dcp_sha1_alg = {
+ 	.final	= dcp_sha_final,
+ 	.finup	= dcp_sha_finup,
+ 	.digest	= dcp_sha_digest,
++	.import = dcp_sha_import,
++	.export = dcp_sha_export,
+ 	.halg	= {
+ 		.digestsize	= SHA1_DIGEST_SIZE,
++		.statesize	= sizeof(struct dcp_sha_req_ctx),
+ 		.base		= {
+ 			.cra_name		= "sha1",
+ 			.cra_driver_name	= "sha1-dcp",
+@@ -853,8 +874,11 @@ static struct ahash_alg dcp_sha256_alg =
+ 	.final	= dcp_sha_final,
+ 	.finup	= dcp_sha_finup,
+ 	.digest	= dcp_sha_digest,
++	.import = dcp_sha_import,
++	.export = dcp_sha_export,
+ 	.halg	= {
+ 		.digestsize	= SHA256_DIGEST_SIZE,
++		.statesize	= sizeof(struct dcp_sha_req_ctx),
+ 		.base		= {
+ 			.cra_name		= "sha256",
+ 			.cra_driver_name	= "sha256-dcp",