diff options
| author | Adrian Schmutzler <freifunk@adrianschmutzler.de> | 2020-08-20 14:26:27 +0200 |
|---|---|---|
| committer | Adrian Schmutzler <freifunk@adrianschmutzler.de> | 2020-09-02 16:29:22 +0200 |
| commit | e68c017e9315fb246e820565ec3e18cf0bd8649e (patch) | |
| tree | fe8dbf6e861793ad1a67a5bbafa0f9fe932deeb3 /target/linux | |
| parent | 64824db6d8fcd4d90bcd205fa4c798c2972514f5 (diff) | |
| download | upstream-e68c017e9315fb246e820565ec3e18cf0bd8649e.tar.gz upstream-e68c017e9315fb246e820565ec3e18cf0bd8649e.tar.bz2 upstream-e68c017e9315fb246e820565ec3e18cf0bd8649e.zip | |
pistachio: drop support for kernel 4.14
The target seems to be working on 5.4, so drop 4.14 support in
preparation for removing it from master entirely.
Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
Diffstat (limited to 'target/linux')
17 files changed, 0 insertions, 2435 deletions
diff --git a/target/linux/pistachio/config-4.14 b/target/linux/pistachio/config-4.14 deleted file mode 100644 index 8b24b68a05..0000000000 --- a/target/linux/pistachio/config-4.14 +++ /dev/null @@ -1,354 +0,0 @@ -CONFIG_ARCH_BINFMT_ELF_STATE=y -CONFIG_ARCH_CLOCKSOURCE_DATA=y -CONFIG_ARCH_DISCARD_MEMBLOCK=y -CONFIG_ARCH_HAS_ELF_RANDOMIZE=y -# CONFIG_ARCH_HAS_GCOV_PROFILE_ALL is not set -# CONFIG_ARCH_HAS_SG_CHAIN is not set -# CONFIG_ARCH_HAS_STRICT_KERNEL_RWX is not set -# CONFIG_ARCH_HAS_STRICT_MODULE_RWX is not set -CONFIG_ARCH_HIBERNATION_POSSIBLE=y -CONFIG_ARCH_MIGHT_HAVE_PC_PARPORT=y -CONFIG_ARCH_MIGHT_HAVE_PC_SERIO=y -CONFIG_ARCH_MMAP_RND_BITS_MAX=15 -CONFIG_ARCH_MMAP_RND_COMPAT_BITS_MAX=15 -# CONFIG_ARCH_OPTIONAL_KERNEL_RWX is not set -# CONFIG_ARCH_OPTIONAL_KERNEL_RWX_DEFAULT is not set -CONFIG_ARCH_SUPPORTS_UPROBES=y -CONFIG_ARCH_SUSPEND_POSSIBLE=y -CONFIG_ARCH_USE_BUILTIN_BSWAP=y -CONFIG_ARCH_USE_QUEUED_RWLOCKS=y -CONFIG_ARCH_USE_QUEUED_SPINLOCKS=y -CONFIG_ARCH_WANT_IPC_PARSE_VERSION=y -CONFIG_BLK_DEV_LOOP=y -CONFIG_BLK_DEV_SD=y -CONFIG_BLK_SCSI_REQUEST=y -CONFIG_BOARD_SCACHE=y -CONFIG_BOOT_ELF32=y -CONFIG_CEVT_R4K=y -CONFIG_CLKDEV_LOOKUP=y -CONFIG_CLKSRC_MIPS_GIC=y -CONFIG_CLKSRC_PISTACHIO=y -CONFIG_CLONE_BACKWARDS=y -CONFIG_COMMON_CLK=y -# CONFIG_COMMON_CLK_BOSTON is not set -CONFIG_CONNECTOR=y -CONFIG_CPU_GENERIC_DUMP_TLB=y -CONFIG_CPU_HAS_PREFETCH=y -CONFIG_CPU_HAS_RIXI=y -CONFIG_CPU_HAS_SYNC=y -# CONFIG_CPU_HOTPLUG_STATE_CONTROL is not set -CONFIG_CPU_IDLE=y -CONFIG_CPU_IDLE_GOV_LADDER=y -CONFIG_CPU_IDLE_GOV_MENU=y -CONFIG_CPU_LITTLE_ENDIAN=y -CONFIG_CPU_MIPS32=y -CONFIG_CPU_MIPS32_R2=y -CONFIG_CPU_MIPSR2=y -CONFIG_CPU_MIPSR2_IRQ_EI=y -CONFIG_CPU_MIPSR2_IRQ_VI=y -CONFIG_CPU_NEEDS_NO_SMARTMIPS_OR_MICROMIPS=y -CONFIG_CPU_PM=y -CONFIG_CPU_R4K_CACHE_TLB=y -CONFIG_CPU_R4K_FPU=y -CONFIG_CPU_RMAP=y -CONFIG_CPU_SUPPORTS_32BIT_KERNEL=y -CONFIG_CPU_SUPPORTS_HIGHMEM=y -CONFIG_CPU_SUPPORTS_MSA=y -CONFIG_CRC16=y -CONFIG_CRC_CCITT=y -CONFIG_CRYPTO_ACOMP2=y -CONFIG_CRYPTO_AEAD=y -CONFIG_CRYPTO_AEAD2=y -CONFIG_CRYPTO_CBC=y -CONFIG_CRYPTO_CRC32C=y -CONFIG_CRYPTO_DEFLATE=y -CONFIG_CRYPTO_HASH=y -CONFIG_CRYPTO_HASH2=y -CONFIG_CRYPTO_LZO=y -CONFIG_CRYPTO_MANAGER=y -CONFIG_CRYPTO_MANAGER2=y -CONFIG_CRYPTO_MD5=y -CONFIG_CRYPTO_NULL=y -CONFIG_CRYPTO_NULL2=y -CONFIG_CRYPTO_RNG=y -CONFIG_CRYPTO_RNG2=y -CONFIG_CRYPTO_SHA1=y -CONFIG_CRYPTO_SHA256=y -CONFIG_CRYPTO_WORKQUEUE=y -CONFIG_CSRC_R4K=y -CONFIG_DMADEVICES=y -CONFIG_DMA_ENGINE=y -CONFIG_DMA_NONCOHERENT=y -CONFIG_DMA_OF=y -CONFIG_DMA_VIRTUAL_CHANNELS=y -CONFIG_DTC=y -# CONFIG_DWMAC_DWC_QOS_ETH is not set -CONFIG_DWMAC_GENERIC=y -CONFIG_EARLY_PRINTK=y -CONFIG_EARLY_PRINTK_8250=y -CONFIG_EXT4_FS=y -CONFIG_EXT4_FS_POSIX_ACL=y -CONFIG_EXT4_FS_SECURITY=y -CONFIG_FIXED_PHY=y -CONFIG_FS_MBCACHE=y -CONFIG_FS_POSIX_ACL=y -CONFIG_GENERIC_ALLOCATOR=y -CONFIG_GENERIC_ATOMIC64=y -CONFIG_GENERIC_CLOCKEVENTS=y -CONFIG_GENERIC_CMOS_UPDATE=y -CONFIG_GENERIC_CPU_AUTOPROBE=y -CONFIG_GENERIC_IO=y -CONFIG_GENERIC_IRQ_CHIP=y -CONFIG_GENERIC_IRQ_EFFECTIVE_AFF_MASK=y -CONFIG_GENERIC_IRQ_IPI=y -CONFIG_GENERIC_IRQ_SHOW=y -CONFIG_GENERIC_PCI_IOMAP=y -CONFIG_GENERIC_PHY=y -CONFIG_GENERIC_PINCONF=y -CONFIG_GENERIC_PINCTRL_GROUPS=y -CONFIG_GENERIC_PINMUX_FUNCTIONS=y -CONFIG_GENERIC_SCHED_CLOCK=y -CONFIG_GENERIC_SMP_IDLE_THREAD=y -CONFIG_GENERIC_TIME_VSYSCALL=y -CONFIG_GPIOLIB=y -CONFIG_GPIOLIB_IRQCHIP=y -# CONFIG_GRO_CELLS is not set -CONFIG_HANDLE_DOMAIN_IRQ=y -CONFIG_HARDWARE_WATCHPOINTS=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_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_CBPF_JIT=y -CONFIG_HAVE_CC_STACKPROTECTOR=y -CONFIG_HAVE_CLK=y -CONFIG_HAVE_CLK_PREPARE=y -CONFIG_HAVE_CONTEXT_TRACKING=y -CONFIG_HAVE_COPY_THREAD_TLS=y -CONFIG_HAVE_C_RECORDMCOUNT=y -CONFIG_HAVE_DEBUG_KMEMLEAK=y -CONFIG_HAVE_DEBUG_STACKOVERFLOW=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_IDE=y -CONFIG_HAVE_IRQ_EXIT_ON_IRQ_STACK=y -CONFIG_HAVE_IRQ_TIME_ACCOUNTING=y -CONFIG_HAVE_KVM=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_SYSCALL_TRACEPOINTS=y -CONFIG_HOTPLUG_CPU=y -CONFIG_I2C=y -CONFIG_I2C_BOARDINFO=y -CONFIG_I2C_IMG=y -CONFIG_IMGPDC_WDT=y -CONFIG_IMG_MDC_DMA=y -CONFIG_INITRAMFS_SOURCE="" -CONFIG_IRQCHIP=y -CONFIG_IRQ_DOMAIN=y -CONFIG_IRQ_DOMAIN_HIERARCHY=y -CONFIG_IRQ_FORCED_THREADING=y -CONFIG_IRQ_MIPS_CPU=y -CONFIG_IRQ_WORK=y -CONFIG_JBD2=y -CONFIG_LEDS_PWM=y -CONFIG_LIBFDT=y -CONFIG_LKDTM=y -CONFIG_LOG_BUF_SHIFT=18 -CONFIG_LZO_COMPRESS=y -CONFIG_LZO_DECOMPRESS=y -CONFIG_MACH_PISTACHIO=y -CONFIG_MAGIC_SYSRQ=y -CONFIG_MAGIC_SYSRQ_DEFAULT_ENABLE=0 -CONFIG_MDIO_BUS=y -CONFIG_MDIO_DEVICE=y -CONFIG_MFD_SYSCON=y -CONFIG_MICREL_PHY=y -CONFIG_MIPS=y -CONFIG_MIPS_ASID_BITS=8 -CONFIG_MIPS_ASID_SHIFT=0 -CONFIG_MIPS_CLOCK_VSYSCALL=y -CONFIG_MIPS_CM=y -# CONFIG_MIPS_CMDLINE_DTB_EXTEND is not set -CONFIG_MIPS_CMDLINE_FROM_BOOTLOADER=y -# CONFIG_MIPS_CMDLINE_FROM_DTB is not set -CONFIG_MIPS_CPC=y -CONFIG_MIPS_CPS=y -# CONFIG_MIPS_CPS_CPUIDLE is not set -# CONFIG_MIPS_CPS_NS16550 is not set -CONFIG_MIPS_CPS_PM=y -CONFIG_MIPS_CPU_SCACHE=y -# CONFIG_MIPS_ELF_APPENDED_DTB is not set -CONFIG_MIPS_EXTERNAL_TIMER=y -CONFIG_MIPS_GIC=y -# CONFIG_MIPS_HUGE_TLB_SUPPORT is not set -CONFIG_MIPS_L1_CACHE_SHIFT=5 -# CONFIG_MIPS_MACHINE is not set -CONFIG_MIPS_MT=y -CONFIG_MIPS_MT_FPAFF=y -CONFIG_MIPS_MT_SMP=y -CONFIG_MIPS_NO_APPENDED_DTB=y -CONFIG_MIPS_PERF_SHARED_TC_COUNTERS=y -# CONFIG_MIPS_RAW_APPENDED_DTB is not set -CONFIG_MIPS_SPRAM=y -# CONFIG_MIPS_VPE_LOADER is not set -CONFIG_MMC=y -CONFIG_MMC_BLOCK=y -CONFIG_MMC_DW=y -# CONFIG_MMC_DW_EXYNOS is not set -# CONFIG_MMC_DW_K3 is not set -CONFIG_MMC_DW_PLTFM=y -CONFIG_MODULES_USE_ELF_REL=y -CONFIG_MODULE_FORCE_UNLOAD=y -CONFIG_MTD_CMDLINE_PARTS=y -CONFIG_MTD_M25P80=y -CONFIG_MTD_NAND=y -CONFIG_MTD_NAND_ECC=y -CONFIG_MTD_SPI_NAND=y -CONFIG_MTD_SPI_NAND_DEVICES=y -CONFIG_MTD_SPI_NOR=y -CONFIG_MTD_SPI_NOR_USE_4K_SECTORS=y -CONFIG_MTD_SPI_NOR_USE_4K_SECTORS_LIMIT=16384 -CONFIG_MTD_UBI=y -CONFIG_MTD_UBI_BEB_LIMIT=20 -CONFIG_MTD_UBI_BLOCK=y -CONFIG_MTD_UBI_FASTMAP=y -# CONFIG_MTD_UBI_GLUEBI is not set -CONFIG_MTD_UBI_WL_THRESHOLD=4096 -CONFIG_NAMESPACES=y -CONFIG_NEED_DMA_MAP_STATE=y -CONFIG_NET_FLOW_LIMIT=y -CONFIG_NET_NS=y -CONFIG_NET_PTP_CLASSIFY=y -CONFIG_NLS=y -CONFIG_NO_GENERIC_PCI_IOPORT_MAP=y -CONFIG_NO_HZ=y -CONFIG_NO_HZ_COMMON=y -CONFIG_NO_HZ_IDLE=y -# CONFIG_NO_IOPORT_MAP is not set -CONFIG_NR_CPUS=4 -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_PADATA=y -CONFIG_PCI_DRIVERS_LEGACY=y -CONFIG_PERF_USE_VMALLOC=y -CONFIG_PGTABLE_LEVELS=2 -# CONFIG_PGTABLE_MAPPING is not set -CONFIG_PHYLIB=y -CONFIG_PHY_PISTACHIO_USB=y -CONFIG_PINCTRL=y -CONFIG_PINCTRL_PISTACHIO=y -CONFIG_PISTACHIO_GPTIMER_CLKSRC=y -CONFIG_POWER_SUPPLY=y -CONFIG_PPS=y -# CONFIG_PREEMPT_NONE is not set -CONFIG_PREEMPT_VOLUNTARY=y -CONFIG_PRINTK_TIME=y -CONFIG_PROC_EVENTS=y -CONFIG_PROFILING=y -CONFIG_PTP_1588_CLOCK=y -CONFIG_PWM=y -CONFIG_PWM_IMG=y -CONFIG_PWM_SYSFS=y -CONFIG_QUEUED_RWLOCKS=y -CONFIG_QUEUED_SPINLOCKS=y -CONFIG_RATIONAL=y -CONFIG_RCU_NEED_SEGCBLIST=y -CONFIG_RCU_STALL_COMMON=y -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_RESET_CONTROLLER=y -CONFIG_RESET_PISTACHIO=y -CONFIG_RFS_ACCEL=y -CONFIG_RPS=y -CONFIG_SCHEDSTATS=y -CONFIG_SCHED_INFO=y -CONFIG_SCSI=y -CONFIG_SCSI_SPI_ATTRS=y -CONFIG_SERIAL_8250_DW=y -# CONFIG_SERIAL_8250_FSL is not set -CONFIG_SERIAL_OF_PLATFORM=y -CONFIG_SG_POOL=y -CONFIG_SMP=y -CONFIG_SMP_UP=y -CONFIG_SPI=y -CONFIG_SPI_IMG_SPFI=y -CONFIG_SPI_MASTER=y -CONFIG_SRAM=y -CONFIG_SRCU=y -CONFIG_STMMAC_ETH=y -CONFIG_STMMAC_PLATFORM=y -CONFIG_SWPHY=y -CONFIG_SYNC_R4K=y -CONFIG_SYSCTL_EXCEPTION_TRACE=y -CONFIG_SYS_HAS_CPU_MIPS32_R2=y -CONFIG_SYS_HAS_EARLY_PRINTK=y -CONFIG_SYS_SUPPORTS_32BIT_KERNEL=y -CONFIG_SYS_SUPPORTS_ARBIT_HZ=y -CONFIG_SYS_SUPPORTS_HOTPLUG_CPU=y -CONFIG_SYS_SUPPORTS_LITTLE_ENDIAN=y -CONFIG_SYS_SUPPORTS_MIPS_CPS=y -CONFIG_SYS_SUPPORTS_MULTITHREADING=y -CONFIG_SYS_SUPPORTS_RELOCATABLE=y -CONFIG_SYS_SUPPORTS_SCHED_SMT=y -CONFIG_SYS_SUPPORTS_SMP=y -CONFIG_SYS_SUPPORTS_ZBOOT=y -CONFIG_TICK_CPU_ACCOUNTING=y -CONFIG_TIMER_OF=y -CONFIG_TIMER_PROBE=y -CONFIG_TMPFS_POSIX_ACL=y -CONFIG_TREE_RCU=y -CONFIG_TREE_SRCU=y -CONFIG_UBIFS_FS=y -# CONFIG_UBIFS_FS_ADVANCED_COMPR is not set -CONFIG_UBIFS_FS_LZO=y -CONFIG_UBIFS_FS_ZLIB=y -CONFIG_USB=y -CONFIG_USB_ANNOUNCE_NEW_DEVICES=y -CONFIG_USB_COMMON=y -CONFIG_USB_DWC2=y -CONFIG_USB_DWC2_DUAL_ROLE=y -# CONFIG_USB_DWC2_TRACK_MISSED_SOFS is not set -CONFIG_USB_EHCI_HCD=y -# CONFIG_USB_EHCI_HCD_PLATFORM is not set -CONFIG_USB_GADGET=y -CONFIG_USB_STORAGE=y -CONFIG_USB_SUPPORT=y -CONFIG_USER_NS=y -CONFIG_USE_GENERIC_EARLY_PRINTK_8250=y -CONFIG_USE_OF=y -CONFIG_WATCHDOG_CORE=y -CONFIG_WEAK_ORDERING=y -CONFIG_XPS=y -CONFIG_ZLIB_DEFLATE=y -CONFIG_ZLIB_INFLATE=y -CONFIG_ZSMALLOC=y -# CONFIG_ZSMALLOC_STAT is not set diff --git a/target/linux/pistachio/patches-4.14/101-dmaengine-img-mdc-Handle-early-status-read.patch b/target/linux/pistachio/patches-4.14/101-dmaengine-img-mdc-Handle-early-status-read.patch deleted file mode 100644 index 92293f8796..0000000000 --- a/target/linux/pistachio/patches-4.14/101-dmaengine-img-mdc-Handle-early-status-read.patch +++ /dev/null @@ -1,68 +0,0 @@ -From a2dd154377c9aa6ddda00d39b8c7c334e4fa16ff Mon Sep 17 00:00:00 2001 -From: Damien Horsley <damien.horsley@imgtec.com> -Date: Tue, 22 Mar 2016 12:46:09 +0000 -Subject: dmaengine: img-mdc: Handle early status read - -It is possible that mdc_tx_status may be called before the first -node has been read from memory. - -In this case, the residue value stored in the register is undefined. -Return the transfer size instead. - -Signed-off-by: Damien Horsley <damien.horsley@imgtec.com> ---- - drivers/dma/img-mdc-dma.c | 40 ++++++++++++++++++++++++---------------- - 1 file changed, 24 insertions(+), 16 deletions(-) - ---- a/drivers/dma/img-mdc-dma.c -+++ b/drivers/dma/img-mdc-dma.c -@@ -620,25 +620,33 @@ static enum dma_status mdc_tx_status(str - (MDC_CMDS_PROCESSED_CMDS_DONE_MASK + 1); - - /* -- * If the command loaded event hasn't been processed yet, then -- * the difference above includes an extra command. -+ * If the first node has not yet been read from memory, -+ * the residue register value is undefined - */ -- if (!mdesc->cmd_loaded) -- cmds--; -- else -- cmds += mdesc->list_cmds_done; -- -- bytes = mdesc->list_xfer_size; -- ldesc = mdesc->list; -- for (i = 0; i < cmds; i++) { -- bytes -= ldesc->xfer_size + 1; -- ldesc = ldesc->next_desc; -- } -- if (ldesc) { -- if (residue != MDC_TRANSFER_SIZE_MASK) -- bytes -= ldesc->xfer_size - residue; -+ if (!mdesc->cmd_loaded && !cmds) { -+ bytes = mdesc->list_xfer_size; -+ } else { -+ /* -+ * If the command loaded event hasn't been processed yet, then -+ * the difference above includes an extra command. -+ */ -+ if (!mdesc->cmd_loaded) -+ cmds--; - else -+ cmds += mdesc->list_cmds_done; -+ -+ bytes = mdesc->list_xfer_size; -+ ldesc = mdesc->list; -+ for (i = 0; i < cmds; i++) { - bytes -= ldesc->xfer_size + 1; -+ ldesc = ldesc->next_desc; -+ } -+ if (ldesc) { -+ if (residue != MDC_TRANSFER_SIZE_MASK) -+ bytes -= ldesc->xfer_size - residue; -+ else -+ bytes -= ldesc->xfer_size + 1; -+ } - } - } - spin_unlock_irqrestore(&mchan->vc.lock, flags); diff --git a/target/linux/pistachio/patches-4.14/102-spi-img-spfi-Implement-dual-and-quad-mode.patch b/target/linux/pistachio/patches-4.14/102-spi-img-spfi-Implement-dual-and-quad-mode.patch deleted file mode 100644 index 15a5d3c806..0000000000 --- a/target/linux/pistachio/patches-4.14/102-spi-img-spfi-Implement-dual-and-quad-mode.patch +++ /dev/null @@ -1,198 +0,0 @@ -From cd2a6af51553d38072cd31699b58d16ca6176ef5 Mon Sep 17 00:00:00 2001 -From: Ionela Voinescu <ionela.voinescu@imgtec.com> -Date: Thu, 2 Feb 2017 16:46:14 +0000 -Subject: spi: img-spfi: Implement dual and quad mode - -For dual and quad modes to work the SPFI controller needs -to have information about command/address/dummy bytes in the -transaction register. This information is not relevant for -single mode, and therefore it can have any value in the -allowed range. Therefore, for any read or write transfers of less -than 8 bytes (cmd = 1 byte, addr up to 7 bytes), SPFI will be -configured, but not enabled (unless it is the last transfer in -the queue). The transfer will be enabled by the subsequent tranfer. -A pending transfer is determined by the content of the transaction -register: if command part is set and tsize is not. - -This way we ensure that for dual and quad transactions -the command request size will apear in the command/address part -of the transaction register, while the data size will be in -tsize, all data being sent/received in the same transaction (as -set up in the transaction register). - -Signed-off-by: Ionela Voinescu <ionela.voinescu@imgtec.com> -Signed-off-by: Ezequiel Garcia <ezequiel.garcia@imgtec.com> ---- - drivers/spi/spi-img-spfi.c | 96 ++++++++++++++++++++++++++++++++++++++++------ - 1 file changed, 85 insertions(+), 11 deletions(-) - ---- a/drivers/spi/spi-img-spfi.c -+++ b/drivers/spi/spi-img-spfi.c -@@ -40,7 +40,8 @@ - #define SPFI_CONTROL_SOFT_RESET BIT(11) - #define SPFI_CONTROL_SEND_DMA BIT(10) - #define SPFI_CONTROL_GET_DMA BIT(9) --#define SPFI_CONTROL_SE BIT(8) -+#define SPFI_CONTROL_SE BIT(8) -+#define SPFI_CONTROL_TX_RX BIT(1) - #define SPFI_CONTROL_TMODE_SHIFT 5 - #define SPFI_CONTROL_TMODE_MASK 0x7 - #define SPFI_CONTROL_TMODE_SINGLE 0 -@@ -51,6 +52,10 @@ - #define SPFI_TRANSACTION 0x18 - #define SPFI_TRANSACTION_TSIZE_SHIFT 16 - #define SPFI_TRANSACTION_TSIZE_MASK 0xffff -+#define SPFI_TRANSACTION_CMD_SHIFT 13 -+#define SPFI_TRANSACTION_CMD_MASK 0x7 -+#define SPFI_TRANSACTION_ADDR_SHIFT 10 -+#define SPFI_TRANSACTION_ADDR_MASK 0x7 - - #define SPFI_PORT_STATE 0x1c - #define SPFI_PORT_STATE_DEV_SEL_SHIFT 20 -@@ -87,6 +92,7 @@ - */ - #define SPFI_32BIT_FIFO_SIZE 64 - #define SPFI_8BIT_FIFO_SIZE 16 -+#define SPFI_DATA_REQUEST_MAX_SIZE 8 - - struct img_spfi { - struct device *dev; -@@ -103,6 +109,8 @@ struct img_spfi { - struct dma_chan *tx_ch; - bool tx_dma_busy; - bool rx_dma_busy; -+ -+ bool complete; - }; - - struct img_spfi_device_data { -@@ -123,9 +131,11 @@ static inline void spfi_start(struct img - { - u32 val; - -- val = spfi_readl(spfi, SPFI_CONTROL); -- val |= SPFI_CONTROL_SPFI_EN; -- spfi_writel(spfi, val, SPFI_CONTROL); -+ if (spfi->complete) { -+ val = spfi_readl(spfi, SPFI_CONTROL); -+ val |= SPFI_CONTROL_SPFI_EN; -+ spfi_writel(spfi, val, SPFI_CONTROL); -+ } - } - - static inline void spfi_reset(struct img_spfi *spfi) -@@ -138,12 +148,21 @@ static int spfi_wait_all_done(struct img - { - unsigned long timeout = jiffies + msecs_to_jiffies(50); - -+ if (!(spfi->complete)) -+ return 0; -+ - while (time_before(jiffies, timeout)) { - u32 status = spfi_readl(spfi, SPFI_INTERRUPT_STATUS); - - if (status & SPFI_INTERRUPT_ALLDONETRIG) { - spfi_writel(spfi, SPFI_INTERRUPT_ALLDONETRIG, - SPFI_INTERRUPT_CLEAR); -+ /* -+ * Disable SPFI for it not to interfere with -+ * pending transactions -+ */ -+ spfi_writel(spfi, spfi_readl(spfi, SPFI_CONTROL) -+ & ~SPFI_CONTROL_SPFI_EN, SPFI_CONTROL); - return 0; - } - cpu_relax(); -@@ -494,9 +513,32 @@ static void img_spfi_config(struct spi_m - struct spi_transfer *xfer) - { - struct img_spfi *spfi = spi_master_get_devdata(spi->master); -- u32 val, div; -+ u32 val, div, transact; -+ bool is_pending; - - /* -+ * For read or write transfers of less than 8 bytes (cmd = 1 byte, -+ * addr up to 7 bytes), SPFI will be configured, but not enabled -+ * (unless it is the last transfer in the queue).The transfer will -+ * be enabled by the subsequent transfer. -+ * A pending transfer is determined by the content of the -+ * transaction register: if command part is set and tsize -+ * is not -+ */ -+ transact = spfi_readl(spfi, SPFI_TRANSACTION); -+ is_pending = ((transact >> SPFI_TRANSACTION_CMD_SHIFT) & -+ SPFI_TRANSACTION_CMD_MASK) && -+ (!((transact >> SPFI_TRANSACTION_TSIZE_SHIFT) & -+ SPFI_TRANSACTION_TSIZE_MASK)); -+ -+ /* If there are no pending transactions it's OK to soft reset */ -+ if (!is_pending) { -+ /* Start the transaction from a known (reset) state */ -+ spfi_reset(spfi); -+ } -+ -+ /* -+ * Before anything else, set up parameters. - * output = spfi_clk * (BITCLK / 512), where BITCLK must be a - * power of 2 up to 128 - */ -@@ -509,20 +551,52 @@ static void img_spfi_config(struct spi_m - val |= div << SPFI_DEVICE_PARAMETER_BITCLK_SHIFT; - spfi_writel(spfi, val, SPFI_DEVICE_PARAMETER(spi->chip_select)); - -- spfi_writel(spfi, xfer->len << SPFI_TRANSACTION_TSIZE_SHIFT, -- SPFI_TRANSACTION); -+ if (!list_is_last(&xfer->transfer_list, &master->cur_msg->transfers) && -+ /* -+ * For duplex mode (both the tx and rx buffers are !NULL) the -+ * CMD, ADDR, and DUMMY byte parts of the transaction register -+ * should always be 0 and therefore the pending transfer -+ * technique cannot be used. -+ */ -+ (xfer->tx_buf) && (!xfer->rx_buf) && -+ (xfer->len <= SPFI_DATA_REQUEST_MAX_SIZE) && !is_pending) { -+ transact = (1 & SPFI_TRANSACTION_CMD_MASK) << -+ SPFI_TRANSACTION_CMD_SHIFT; -+ transact |= ((xfer->len - 1) & SPFI_TRANSACTION_ADDR_MASK) << -+ SPFI_TRANSACTION_ADDR_SHIFT; -+ spfi->complete = false; -+ } else { -+ spfi->complete = true; -+ if (is_pending) { -+ /* Keep setup from pending transfer */ -+ transact |= ((xfer->len & SPFI_TRANSACTION_TSIZE_MASK) << -+ SPFI_TRANSACTION_TSIZE_SHIFT); -+ } else { -+ transact = ((xfer->len & SPFI_TRANSACTION_TSIZE_MASK) << -+ SPFI_TRANSACTION_TSIZE_SHIFT); -+ } -+ } -+ spfi_writel(spfi, transact, SPFI_TRANSACTION); - - val = spfi_readl(spfi, SPFI_CONTROL); - val &= ~(SPFI_CONTROL_SEND_DMA | SPFI_CONTROL_GET_DMA); -- if (xfer->tx_buf) -+ /* -+ * We set up send DMA for pending transfers also, as -+ * those are always send transfers -+ */ -+ if ((xfer->tx_buf) || is_pending) - val |= SPFI_CONTROL_SEND_DMA; -- if (xfer->rx_buf) -+ if (xfer->tx_buf) -+ val |= SPFI_CONTROL_TX_RX; -+ if (xfer->rx_buf) { - val |= SPFI_CONTROL_GET_DMA; -+ val &= ~SPFI_CONTROL_TX_RX; -+ } - val &= ~(SPFI_CONTROL_TMODE_MASK << SPFI_CONTROL_TMODE_SHIFT); -- if (xfer->tx_nbits == SPI_NBITS_DUAL && -+ if (xfer->tx_nbits == SPI_NBITS_DUAL || - xfer->rx_nbits == SPI_NBITS_DUAL) - val |= SPFI_CONTROL_TMODE_DUAL << SPFI_CONTROL_TMODE_SHIFT; -- else if (xfer->tx_nbits == SPI_NBITS_QUAD && -+ else if (xfer->tx_nbits == SPI_NBITS_QUAD || - xfer->rx_nbits == SPI_NBITS_QUAD) - val |= SPFI_CONTROL_TMODE_QUAD << SPFI_CONTROL_TMODE_SHIFT; - val |= SPFI_CONTROL_SE; diff --git a/target/linux/pistachio/patches-4.14/103-spi-img-spfi-set-device-select-bits-for-SPFI-port-st.patch b/target/linux/pistachio/patches-4.14/103-spi-img-spfi-set-device-select-bits-for-SPFI-port-st.patch deleted file mode 100644 index ba70348da9..0000000000 --- a/target/linux/pistachio/patches-4.14/103-spi-img-spfi-set-device-select-bits-for-SPFI-port-st.patch +++ /dev/null @@ -1,27 +0,0 @@ -From 145f5369510b86cd55c659388a26a0cc267f8874 Mon Sep 17 00:00:00 2001 -From: Ionela Voinescu <ionela.voinescu@imgtec.com> -Date: Mon, 1 Feb 2016 10:58:08 +0000 -Subject: spi: img-spfi: set device select bits for SPFI port state - -Even if the chip select line is not controlled by the SPFI -hardware, the device select bits need to be set to specify -the chip select line in use for the hardware to know what -parameters to use for the current transfer. - -Signed-off-by: Ionela Voinescu <ionela.voinescu@imgtec.com> ---- - drivers/spi/spi-img-spfi.c | 3 +++ - 1 file changed, 3 insertions(+) - ---- a/drivers/spi/spi-img-spfi.c -+++ b/drivers/spi/spi-img-spfi.c -@@ -438,6 +438,9 @@ static int img_spfi_prepare(struct spi_m - u32 val; - - val = spfi_readl(spfi, SPFI_PORT_STATE); -+ val &= ~(SPFI_PORT_STATE_DEV_SEL_MASK << -+ SPFI_PORT_STATE_DEV_SEL_SHIFT); -+ val |= msg->spi->chip_select << SPFI_PORT_STATE_DEV_SEL_SHIFT; - if (msg->spi->mode & SPI_CPHA) - val |= SPFI_PORT_STATE_CK_PHASE(msg->spi->chip_select); - else diff --git a/target/linux/pistachio/patches-4.14/104-spi-img-spfi-use-device-0-configuration-for-all-devi.patch b/target/linux/pistachio/patches-4.14/104-spi-img-spfi-use-device-0-configuration-for-all-devi.patch deleted file mode 100644 index 6c9e6b5a76..0000000000 --- a/target/linux/pistachio/patches-4.14/104-spi-img-spfi-use-device-0-configuration-for-all-devi.patch +++ /dev/null @@ -1,64 +0,0 @@ -From 905ee06a9966113fe51d6bad1819759cb30fd0bd Mon Sep 17 00:00:00 2001 -From: Ionela Voinescu <ionela.voinescu@imgtec.com> -Date: Tue, 9 Feb 2016 10:18:31 +0000 -Subject: spi: img-spfi: use device 0 configuration for all devices - -Given that we control the chip select line externally -we can use only one parameter register (device 0 parameter -register) and one set of configuration bits (port configuration -bits for device 0) for all devices (all chip select lines). - -Signed-off-by: Ionela Voinescu <ionela.voinescu@imgtec.com> ---- - drivers/spi/spi-img-spfi.c | 23 ++++++++++++++++------- - 1 file changed, 16 insertions(+), 7 deletions(-) - ---- a/drivers/spi/spi-img-spfi.c -+++ b/drivers/spi/spi-img-spfi.c -@@ -437,18 +437,23 @@ static int img_spfi_prepare(struct spi_m - struct img_spfi *spfi = spi_master_get_devdata(master); - u32 val; - -+ /* -+ * The chip select line is controlled externally so -+ * we can use the CS0 configuration for all devices -+ */ - val = spfi_readl(spfi, SPFI_PORT_STATE); -+ -+ /* 0 for device selection */ - val &= ~(SPFI_PORT_STATE_DEV_SEL_MASK << - SPFI_PORT_STATE_DEV_SEL_SHIFT); -- val |= msg->spi->chip_select << SPFI_PORT_STATE_DEV_SEL_SHIFT; - if (msg->spi->mode & SPI_CPHA) -- val |= SPFI_PORT_STATE_CK_PHASE(msg->spi->chip_select); -+ val |= SPFI_PORT_STATE_CK_PHASE(0); - else -- val &= ~SPFI_PORT_STATE_CK_PHASE(msg->spi->chip_select); -+ val &= ~SPFI_PORT_STATE_CK_PHASE(0); - if (msg->spi->mode & SPI_CPOL) -- val |= SPFI_PORT_STATE_CK_POL(msg->spi->chip_select); -+ val |= SPFI_PORT_STATE_CK_POL(0); - else -- val &= ~SPFI_PORT_STATE_CK_POL(msg->spi->chip_select); -+ val &= ~SPFI_PORT_STATE_CK_POL(0); - spfi_writel(spfi, val, SPFI_PORT_STATE); - - return 0; -@@ -548,11 +553,15 @@ static void img_spfi_config(struct spi_m - div = DIV_ROUND_UP(clk_get_rate(spfi->spfi_clk), xfer->speed_hz); - div = clamp(512 / (1 << get_count_order(div)), 1, 128); - -- val = spfi_readl(spfi, SPFI_DEVICE_PARAMETER(spi->chip_select)); -+ /* -+ * The chip select line is controlled externally so -+ * we can use the CS0 parameters for all devices -+ */ -+ val = spfi_readl(spfi, SPFI_DEVICE_PARAMETER(0)); - val &= ~(SPFI_DEVICE_PARAMETER_BITCLK_MASK << - SPFI_DEVICE_PARAMETER_BITCLK_SHIFT); - val |= div << SPFI_DEVICE_PARAMETER_BITCLK_SHIFT; -- spfi_writel(spfi, val, SPFI_DEVICE_PARAMETER(spi->chip_select)); -+ spfi_writel(spfi, val, SPFI_DEVICE_PARAMETER(0)); - - if (!list_is_last(&xfer->transfer_list, &master->cur_msg->transfers) && - /* diff --git a/target/linux/pistachio/patches-4.14/105-spi-img-spfi-RX-maximum-burst-size-for-DMA-is-8.patch b/target/linux/pistachio/patches-4.14/105-spi-img-spfi-RX-maximum-burst-size-for-DMA-is-8.patch deleted file mode 100644 index 0067b0ea4a..0000000000 --- a/target/linux/pistachio/patches-4.14/105-spi-img-spfi-RX-maximum-burst-size-for-DMA-is-8.patch +++ /dev/null @@ -1,59 +0,0 @@ -From 56466f505f58f44b69feb7eaed3b506842800456 Mon Sep 17 00:00:00 2001 -From: Ionela Voinescu <ionela.voinescu@imgtec.com> -Date: Tue, 1 Mar 2016 17:49:45 +0000 -Subject: spi: img-spfi: RX maximum burst size for DMA is 8 - -The depth of the FIFOs is 16 bytes. The DMA request line is tied -to the half full/empty (depending on the use of the TX or RX FIFO) -threshold. For the TX FIFO, if you set a burst size of 8 (equal to -half the depth) the first burst goes into FIFO without any issues, -but due the latency involved (the time the data leaves the DMA -engine to the time it arrives at the FIFO), the DMA might trigger -another burst of 8. But given that there is no space for 2 additonal -bursts of 8, this would result in a failure. Therefore, we have to -keep the burst size for TX to 4 to accomodate for an extra burst. - -For the read (RX) scenario, the DMA request line goes high when -there is at least 8 entries in the FIFO (half full), and we can -program the burst size to be 8 because the risk of accidental burst -does not exist. The DMA engine will not trigger another read until -the read data for all the burst it has sent out has been received. - -While here, move the burst size setting outside of the if/else branches -as they have the same value for both 8 and 32 bit data widths. - -Signed-off-by: Ionela Voinescu <ionela.voinescu@imgtec.com> ---- - drivers/spi/spi-img-spfi.c | 6 ++---- - 1 file changed, 2 insertions(+), 4 deletions(-) - ---- a/drivers/spi/spi-img-spfi.c -+++ b/drivers/spi/spi-img-spfi.c -@@ -346,12 +346,11 @@ static int img_spfi_start_dma(struct spi - if (xfer->len % 4 == 0) { - rxconf.src_addr = spfi->phys + SPFI_RX_32BIT_VALID_DATA; - rxconf.src_addr_width = 4; -- rxconf.src_maxburst = 4; - } else { - rxconf.src_addr = spfi->phys + SPFI_RX_8BIT_VALID_DATA; - rxconf.src_addr_width = 1; -- rxconf.src_maxburst = 4; - } -+ rxconf.src_maxburst = 8; - dmaengine_slave_config(spfi->rx_ch, &rxconf); - - rxdesc = dmaengine_prep_slave_sg(spfi->rx_ch, xfer->rx_sg.sgl, -@@ -370,12 +369,11 @@ static int img_spfi_start_dma(struct spi - if (xfer->len % 4 == 0) { - txconf.dst_addr = spfi->phys + SPFI_TX_32BIT_VALID_DATA; - txconf.dst_addr_width = 4; -- txconf.dst_maxburst = 4; - } else { - txconf.dst_addr = spfi->phys + SPFI_TX_8BIT_VALID_DATA; - txconf.dst_addr_width = 1; -- txconf.dst_maxburst = 4; - } -+ txconf.dst_maxburst = 4; - dmaengine_slave_config(spfi->tx_ch, &txconf); - - txdesc = dmaengine_prep_slave_sg(spfi->tx_ch, xfer->tx_sg.sgl, diff --git a/target/linux/pistachio/patches-4.14/106-spi-img-spfi-finish-every-transfer-cleanly.patch b/target/linux/pistachio/patches-4.14/106-spi-img-spfi-finish-every-transfer-cleanly.patch deleted file mode 100644 index 0f958314e3..0000000000 --- a/target/linux/pistachio/patches-4.14/106-spi-img-spfi-finish-every-transfer-cleanly.patch +++ /dev/null @@ -1,120 +0,0 @@ -From 5fcca3fd4b621d7b5bdeca18d36dfc6ca6cfe383 Mon Sep 17 00:00:00 2001 -From: Ionela Voinescu <ionela.voinescu@imgtec.com> -Date: Wed, 10 Aug 2016 11:42:26 +0100 -Subject: spi: img-spfi: finish every transfer cleanly - -Before this change, the interrupt status bit that signaled -the end of a tranfers was cleared in the wait_all_done -function. That functionality triggered issues for DMA -duplex transactions where the wait function was called -twice, in both the TX and RX callbacks. - -In order to fix the issue, clear all interrupt data bits -at the end of a PIO transfer or at the end of both TX and RX -duplex transfers, if the transfer is not a pending tranfer -(command waiting for data). After that, the status register -is checked for new incoming data or new data requests to be -signaled. If SPFI finished cleanly, no new interrupt data -bits should be set. - -Signed-off-by: Ionela Voinescu <ionela.voinescu@imgtec.com> ---- - drivers/spi/spi-img-spfi.c | 49 +++++++++++++++++++++++++++++++++------------- - 1 file changed, 35 insertions(+), 14 deletions(-) - ---- a/drivers/spi/spi-img-spfi.c -+++ b/drivers/spi/spi-img-spfi.c -@@ -83,6 +83,14 @@ - #define SPFI_INTERRUPT_SDE BIT(1) - #define SPFI_INTERRUPT_SDTRIG BIT(0) - -+#define SPFI_INTERRUPT_DATA_BITS (SPFI_INTERRUPT_SDHF |\ -+ SPFI_INTERRUPT_SDFUL |\ -+ SPFI_INTERRUPT_GDEX32BIT |\ -+ SPFI_INTERRUPT_GDHF |\ -+ SPFI_INTERRUPT_GDFUL |\ -+ SPFI_INTERRUPT_ALLDONETRIG |\ -+ SPFI_INTERRUPT_GDEX8BIT) -+ - /* - * There are four parallel FIFOs of 16 bytes each. The word buffer - * (*_32BIT_VALID_DATA) accesses all four FIFOs at once, resulting in an -@@ -144,6 +152,23 @@ static inline void spfi_reset(struct img - spfi_writel(spfi, 0, SPFI_CONTROL); - } - -+static inline void spfi_finish(struct img_spfi *spfi) -+{ -+ if (!(spfi->complete)) -+ return; -+ -+ /* Clear data bits as all transfers(TX and RX) have finished */ -+ spfi_writel(spfi, SPFI_INTERRUPT_DATA_BITS, SPFI_INTERRUPT_CLEAR); -+ if (spfi_readl(spfi, SPFI_INTERRUPT_STATUS) & SPFI_INTERRUPT_DATA_BITS) { -+ dev_err(spfi->dev, "SPFI did not finish transfer cleanly.\n"); -+ spfi_reset(spfi); -+ } -+ /* Disable SPFI for it not to interfere with pending transactions */ -+ spfi_writel(spfi, -+ spfi_readl(spfi, SPFI_CONTROL) & ~SPFI_CONTROL_SPFI_EN, -+ SPFI_CONTROL); -+} -+ - static int spfi_wait_all_done(struct img_spfi *spfi) - { - unsigned long timeout = jiffies + msecs_to_jiffies(50); -@@ -152,19 +177,9 @@ static int spfi_wait_all_done(struct img - return 0; - - while (time_before(jiffies, timeout)) { -- u32 status = spfi_readl(spfi, SPFI_INTERRUPT_STATUS); -- -- if (status & SPFI_INTERRUPT_ALLDONETRIG) { -- spfi_writel(spfi, SPFI_INTERRUPT_ALLDONETRIG, -- SPFI_INTERRUPT_CLEAR); -- /* -- * Disable SPFI for it not to interfere with -- * pending transactions -- */ -- spfi_writel(spfi, spfi_readl(spfi, SPFI_CONTROL) -- & ~SPFI_CONTROL_SPFI_EN, SPFI_CONTROL); -+ if (spfi_readl(spfi, SPFI_INTERRUPT_STATUS) & -+ SPFI_INTERRUPT_ALLDONETRIG) - return 0; -- } - cpu_relax(); - } - -@@ -296,6 +311,8 @@ static int img_spfi_start_pio(struct spi - } - - ret = spfi_wait_all_done(spfi); -+ spfi_finish(spfi); -+ - if (ret < 0) - return ret; - -@@ -311,8 +328,10 @@ static void img_spfi_dma_rx_cb(void *dat - - spin_lock_irqsave(&spfi->lock, flags); - spfi->rx_dma_busy = false; -- if (!spfi->tx_dma_busy) -+ if (!spfi->tx_dma_busy) { -+ spfi_finish(spfi); - spi_finalize_current_transfer(spfi->master); -+ } - spin_unlock_irqrestore(&spfi->lock, flags); - } - -@@ -325,8 +344,10 @@ static void img_spfi_dma_tx_cb(void *dat - - spin_lock_irqsave(&spfi->lock, flags); - spfi->tx_dma_busy = false; -- if (!spfi->rx_dma_busy) -+ if (!spfi->rx_dma_busy) { -+ spfi_finish(spfi); - spi_finalize_current_transfer(spfi->master); -+ } - spin_unlock_irqrestore(&spfi->lock, flags); - } - diff --git a/target/linux/pistachio/patches-4.14/107-clockevents-Retry-programming-min-delta-up-to-10-tim.patch b/target/linux/pistachio/patches-4.14/107-clockevents-Retry-programming-min-delta-up-to-10-tim.patch deleted file mode 100644 index 857823b783..0000000000 --- a/target/linux/pistachio/patches-4.14/107-clockevents-Retry-programming-min-delta-up-to-10-tim.patch +++ /dev/null @@ -1,66 +0,0 @@ -From b46f8c74afdd30cd52bfdcc2231470a0bab04416 Mon Sep 17 00:00:00 2001 -From: James Hogan <james.hogan@imgtec.com> -Date: Fri, 22 Apr 2016 18:22:45 +0100 -Subject: clockevents: Retry programming min delta up to 10 times - -Under virtualisation it is possible to get unexpected latency during a -clockevent device's set_next_event() callback which can make it return --ETIME even for a delta based on min_delta_ns. - -The clockevents_program_min_delta() implementation for -CONFIG_GENERIC_CLOCKEVENTS_MIN_ADJUST=n doesn't handle retries when this -happens, nor does clockevents_program_event() or its callers when force -is true (for example hrtimer_reprogram()). This can result in hangs -until the clock event device does a full period. - -It isn't appropriate to use MIN_ADJUST in this case as occasional -hypervisor induced high latency will cause min_delta_ns to quickly -increase to the maximum. -Instead, borrow the retry pattern from the MIN_ADJUST case, but without -making adjustments. We retry up to 10 times before giving up. - -(picked https://patchwork.kernel.org/patch/8909491/) - -Signed-off-by: James Hogan <james.hogan@imgtec.com> ---- - kernel/time/clockevents.c | 26 +++++++++++++++++++------- - 1 file changed, 19 insertions(+), 7 deletions(-) - ---- a/kernel/time/clockevents.c -+++ b/kernel/time/clockevents.c -@@ -281,16 +281,28 @@ static int clockevents_program_min_delta - { - unsigned long long clc; - int64_t delta; -+ int i; - -- delta = dev->min_delta_ns; -- dev->next_event = ktime_add_ns(ktime_get(), delta); -+ for (i = 0;;) { -+ delta = dev->min_delta_ns; -+ dev->next_event = ktime_add_ns(ktime_get(), delta); - -- if (clockevent_state_shutdown(dev)) -- return 0; -+ if (clockevent_state_shutdown(dev)) -+ return 0; - -- dev->retries++; -- clc = ((unsigned long long) delta * dev->mult) >> dev->shift; -- return dev->set_next_event((unsigned long) clc, dev); -+ dev->retries++; -+ clc = ((unsigned long long) delta * dev->mult) >> dev->shift; -+ if (dev->set_next_event((unsigned long) clc, dev) == 0) -+ return 0; -+ -+ if (++i > 9) { -+ /* -+ * We tried 10 times to program the device with the -+ * given min_delta_ns. Get out of here. -+ */ -+ return -ETIME; -+ } -+ } - } - - #endif /* CONFIG_GENERIC_CLOCKEVENTS_MIN_ADJUST */ diff --git a/target/linux/pistachio/patches-4.14/108-clk-pistachio-Fix-wrong-SDHost-card-speed.patch b/target/linux/pistachio/patches-4.14/108-clk-pistachio-Fix-wrong-SDHost-card-speed.patch deleted file mode 100644 index 5329ad62d0..0000000000 --- a/target/linux/pistachio/patches-4.14/108-clk-pistachio-Fix-wrong-SDHost-card-speed.patch +++ /dev/null @@ -1,49 +0,0 @@ -From 3642843a06025ec333d7e92580cf52cb8db2a652 Mon Sep 17 00:00:00 2001 -From: Govindraj Raja <Govindraj.Raja@imgtec.com> -Date: Fri, 8 Jan 2016 16:36:07 +0000 -Subject: clk: pistachio: Fix wrong SDHost card speed - -The SDHost currently clocks the card 4x slower than it -should do, because there is fixed divide by 4 in the -sdhost wrapper that is not present in the clock tree. -To model this add a fixed divide by 4 clock node in -the SDHost clock path. - -This will ensure the right clock frequency is selected when -the mmc driver tries to configure frequency on card insert. - -Signed-off-by: Govindraj Raja <Govindraj.Raja@imgtec.com> ---- - drivers/clk/pistachio/clk-pistachio.c | 3 ++- - include/dt-bindings/clock/pistachio-clk.h | 1 + - 2 files changed, 3 insertions(+), 1 deletion(-) - ---- a/drivers/clk/pistachio/clk-pistachio.c -+++ b/drivers/clk/pistachio/clk-pistachio.c -@@ -44,7 +44,7 @@ static struct pistachio_gate pistachio_g - GATE(CLK_AUX_ADC_INTERNAL, "aux_adc_internal", "sys_internal_div", - 0x104, 22), - GATE(CLK_AUX_ADC, "aux_adc", "aux_adc_div", 0x104, 23), -- GATE(CLK_SD_HOST, "sd_host", "sd_host_div", 0x104, 24), -+ GATE(CLK_SD_HOST, "sd_host", "sd_host_div4", 0x104, 24), - GATE(CLK_BT, "bt", "bt_div", 0x104, 25), - GATE(CLK_BT_DIV4, "bt_div4", "bt_div4_div", 0x104, 26), - GATE(CLK_BT_DIV8, "bt_div8", "bt_div8_div", 0x104, 27), -@@ -54,6 +54,7 @@ static struct pistachio_gate pistachio_g - static struct pistachio_fixed_factor pistachio_ffs[] __initdata = { - FIXED_FACTOR(CLK_WIFI_DIV4, "wifi_div4", "wifi_pll", 4), - FIXED_FACTOR(CLK_WIFI_DIV8, "wifi_div8", "wifi_pll", 8), -+ FIXED_FACTOR(CLK_SDHOST_DIV4, "sd_host_div4", "sd_host_div", 4), - }; - - static struct pistachio_div pistachio_divs[] __initdata = { ---- a/include/dt-bindings/clock/pistachio-clk.h -+++ b/include/dt-bindings/clock/pistachio-clk.h -@@ -21,6 +21,7 @@ - /* Fixed-factor clocks */ - #define CLK_WIFI_DIV4 16 - #define CLK_WIFI_DIV8 17 -+#define CLK_SDHOST_DIV4 18 - - /* Gate clocks */ - #define CLK_MIPS 32 diff --git a/target/linux/pistachio/patches-4.14/109-MIPS-DTS-img-marduk-switch-mmc-to-1-bit-mode.patch b/target/linux/pistachio/patches-4.14/109-MIPS-DTS-img-marduk-switch-mmc-to-1-bit-mode.patch deleted file mode 100644 index 22fc42b988..0000000000 --- a/target/linux/pistachio/patches-4.14/109-MIPS-DTS-img-marduk-switch-mmc-to-1-bit-mode.patch +++ /dev/null @@ -1,47 +0,0 @@ -From 981c1d416af45eff207227aec106381ac23aac99 Mon Sep 17 00:00:00 2001 -From: Ian Pozella <Ian.Pozella@imgtec.com> -Date: Mon, 20 Feb 2017 10:00:52 +0000 -Subject: MIPS: DTS: img: marduk: switch mmc to 1 bit mode - -The mmc block in Pistachio allows 1 to 8 data bits to be used. -Marduk uses 4 bits allowing the upper 4 bits to be allocated -to the Mikrobus ports. However these bits are still connected -internally meaning the mmc block recieves signals on all data lines -and seems the internal HW CRC checks get corrupted by this erroneous -data. - -We cannot control what data is sent on these lines because they go -to external ports. 1 bit mode does not exhibit the issue hence the -safe default is to use this. If a user knows that in their use case -they will not use the upper bits then they can set to 4 bit mode in -order to improve performance. - -Also make sure that the upper 4 bits don't get allocated to the mmc -driver (the default is to assign all 8 pins) so they can be allocated -to other drivers. Allocating all 4 despite setting 1 bit mode as this -matches what is there in hardware. - -Signed-off-by: Ian Pozella <Ian.Pozella@imgtec.com> ---- - arch/mips/boot/dts/img/pistachio_marduk.dts | 3 ++- - 1 file changed, 2 insertions(+), 1 deletion(-) - ---- a/arch/mips/boot/dts/img/pistachio_marduk.dts -+++ b/arch/mips/boot/dts/img/pistachio_marduk.dts -@@ -120,7 +120,7 @@ - - &sdhost { - status = "okay"; -- bus-width = <4>; -+ bus-width = <1>; - disable-wp; - }; - -@@ -130,6 +130,7 @@ - - &pin_sdhost_data { - drive-strength = <2>; -+ pins = "mfio17", "mfio18", "mfio19", "mfio20"; - }; - - &pwm { diff --git a/target/linux/pistachio/patches-4.14/401-mtd-nor-support-mtd-name-from-device-tree.patch b/target/linux/pistachio/patches-4.14/401-mtd-nor-support-mtd-name-from-device-tree.patch deleted file mode 100644 index 065a0b77bc..0000000000 --- a/target/linux/pistachio/patches-4.14/401-mtd-nor-support-mtd-name-from-device-tree.patch +++ /dev/null @@ -1,34 +0,0 @@ -From f32bc2aa01edcba2f2ed5db151cf183eac9ef919 Mon Sep 17 00:00:00 2001 -From: Abhimanyu Vishwakarma <Abhimanyu.Vishwakarma@imgtec.com> -Date: Sat, 25 Feb 2017 16:42:50 +0000 -Subject: mtd: nor: support mtd name from device tree - -Signed-off-by: Abhimanyu Vishwakarma <Abhimanyu.Vishwakarma@imgtec.com> ---- - drivers/mtd/spi-nor/spi-nor.c | 8 +++++++- - 1 file changed, 7 insertions(+), 1 deletion(-) - ---- a/drivers/mtd/spi-nor/spi-nor.c -+++ b/drivers/mtd/spi-nor/spi-nor.c -@@ -2671,6 +2671,7 @@ int spi_nor_scan(struct spi_nor *nor, co - struct device *dev = nor->dev; - struct mtd_info *mtd = &nor->mtd; - struct device_node *np = spi_nor_get_flash_node(nor); -+ const char __maybe_unused *of_mtd_name = NULL; - int ret; - int i; - -@@ -2746,7 +2747,12 @@ int spi_nor_scan(struct spi_nor *nor, co - spi_nor_wait_till_ready(nor); - } - -- if (!mtd->name) -+#ifdef CONFIG_MTD_OF_PARTS -+ of_property_read_string(np, "linux,mtd-name", &of_mtd_name); -+#endif -+ if (of_mtd_name) -+ mtd->name = of_mtd_name; -+ else if (!mtd->name) - mtd->name = dev_name(dev); - mtd->priv = nor; - mtd->type = MTD_NORFLASH; diff --git a/target/linux/pistachio/patches-4.14/411-mtd-nand-Check-length-of-ID-before-reading-bits-per-.patch b/target/linux/pistachio/patches-4.14/411-mtd-nand-Check-length-of-ID-before-reading-bits-per-.patch deleted file mode 100644 index 3311de645f..0000000000 --- a/target/linux/pistachio/patches-4.14/411-mtd-nand-Check-length-of-ID-before-reading-bits-per-.patch +++ /dev/null @@ -1,33 +0,0 @@ -From 42ebff638003be18fab503b37de4ad7853244e95 Mon Sep 17 00:00:00 2001 -From: Ezequiel Garcia <ezequiel.garcia@imgtec.com> -Date: Sat, 25 Feb 2017 15:58:22 +0000 -Subject: mtd: nand: Check length of ID before reading bits per cell - -The table-based NAND identification currently reads the number -of bits per cell from the 3rd byte of the extended ID. This is done -for the so-called 'full ID' devices; i.e. devices that have a known -length ID. - -However, if the ID length is shorter than three, there's no 3rd byte, -and so it's wrong to read the bits per cell from there. Fix this by -adding a check for the ID length. - -(picked from http://lists.infradead.org/pipermail/linux-mtd/2014-December/056764.html) - -Signed-off-by: Ezequiel Garcia <ezequiel.garcia@imgtec.com> ---- - drivers/mtd/nand/nand_base.c | 3 ++- - 1 file changed, 2 insertions(+), 1 deletion(-) - ---- a/drivers/mtd/nand/nand_base.c -+++ b/drivers/mtd/nand/nand_base.c -@@ -3803,7 +3803,8 @@ static bool find_full_id_nand(struct nan - mtd->erasesize = type->erasesize; - mtd->oobsize = type->oobsize; - -- chip->bits_per_cell = nand_get_bits_per_cell(id_data[2]); -+ if (type->id_len > 2) -+ chip->bits_per_cell = nand_get_bits_per_cell(id_data[2]); - chip->chipsize = (uint64_t)type->chipsize << 20; - chip->options |= type->options; - chip->ecc_strength_ds = NAND_ECC_STRENGTH(type); diff --git a/target/linux/pistachio/patches-4.14/412-mtd-nand-Add-JEDEC-manufacturer-ID-for-Gigadevice.patch b/target/linux/pistachio/patches-4.14/412-mtd-nand-Add-JEDEC-manufacturer-ID-for-Gigadevice.patch deleted file mode 100644 index a967124c81..0000000000 --- a/target/linux/pistachio/patches-4.14/412-mtd-nand-Add-JEDEC-manufacturer-ID-for-Gigadevice.patch +++ /dev/null @@ -1,35 +0,0 @@ -From a4bc33b205fd9b1db862f1e45173dba57b0fa57f Mon Sep 17 00:00:00 2001 -From: Ezequiel Garcia <ezequiel.garcia@imgtec.com> -Date: Sat, 25 Feb 2017 15:43:09 +0000 -Subject: mtd: nand: Add JEDEC manufacturer ID for Gigadevice - -This commit adds Gigadevice to the list of manufacturer ID and name strings. - -(picked from http://lists.infradead.org/pipermail/linux-mtd/2014-December/056765.html) - -Signed-off-by: Ezequiel Garcia <ezequiel.garcia@imgtec.com> ---- - drivers/mtd/nand/nand_ids.c | 1 + - include/linux/mtd/rawnand.h | 1 + - 2 files changed, 2 insertions(+) - ---- a/drivers/mtd/nand/nand_ids.c -+++ b/drivers/mtd/nand/nand_ids.c -@@ -184,6 +184,7 @@ static const struct nand_manufacturer na - {NAND_MFR_SANDISK, "SanDisk"}, - {NAND_MFR_INTEL, "Intel"}, - {NAND_MFR_ATO, "ATO"}, -+ {NAND_MFR_GIGADEVICE, "Gigadevice"}, - {NAND_MFR_WINBOND, "Winbond"}, - }; - ---- a/include/linux/mtd/rawnand.h -+++ b/include/linux/mtd/rawnand.h -@@ -1014,6 +1014,7 @@ static inline void *nand_get_manufacture - #define NAND_MFR_SANDISK 0x45 - #define NAND_MFR_INTEL 0x89 - #define NAND_MFR_ATO 0x9b -+#define NAND_MFR_GIGADEVICE 0xc8 - #define NAND_MFR_WINBOND 0xef - - diff --git a/target/linux/pistachio/patches-4.14/413-mtd-Introduce-SPI-NAND-framework.patch b/target/linux/pistachio/patches-4.14/413-mtd-Introduce-SPI-NAND-framework.patch deleted file mode 100644 index d1189eeb8c..0000000000 --- a/target/linux/pistachio/patches-4.14/413-mtd-Introduce-SPI-NAND-framework.patch +++ /dev/null @@ -1,707 +0,0 @@ -From 082a89a78e29b15008284df90441747cb742f149 Mon Sep 17 00:00:00 2001 -From: Ezequiel Garcia <ezequiel.garcia@imgtec.com> -Date: Tue, 2 Dec 2014 09:58:52 -0300 -Subject: mtd: Introduce SPI NAND framework - -Add a new framework, to support SPI NAND devices. The framework registers -a NAND chip and handles the generic SPI NAND protocol, calling device-specific -hooks for each SPI NAND command. - -The following is the stack design, from userspace to hardware. This commit -adds the "SPI NAND core" layer. - - Userspace - ------------------ - MTD - ------------------ - NAND core - ------------------ - SPI NAND core - ------------------ - SPI NAND device - ------------------ - SPI core - ------------------ - SPI master - ------------------ - Hardware - -(based on http://lists.infradead.org/pipermail/linux-mtd/2014-December/056763.html) - -Signed-off-by: Ionela Voinescu <ionela.voinescu@imgtec.com> -Signed-off-by: Ezequiel Garcia <ezequiel.garcia@imgtec.com> -Signed-off-by: Ian Pozella <Ian.Pozella@imgtec.com> ---- - drivers/mtd/Kconfig | 2 + - drivers/mtd/Makefile | 1 + - drivers/mtd/spi-nand/Kconfig | 7 + - drivers/mtd/spi-nand/Makefile | 1 + - drivers/mtd/spi-nand/spi-nand-base.c | 566 +++++++++++++++++++++++++++++++++++ - include/linux/mtd/spi-nand.h | 54 ++++ - 6 files changed, 631 insertions(+) - create mode 100644 drivers/mtd/spi-nand/Kconfig - create mode 100644 drivers/mtd/spi-nand/Makefile - create mode 100644 drivers/mtd/spi-nand/spi-nand-base.c - create mode 100644 include/linux/mtd/spi-nand.h - ---- a/drivers/mtd/Kconfig -+++ b/drivers/mtd/Kconfig -@@ -373,6 +373,8 @@ source "drivers/mtd/onenand/Kconfig" - - source "drivers/mtd/lpddr/Kconfig" - -+source "drivers/mtd/spi-nand/Kconfig" -+ - source "drivers/mtd/spi-nor/Kconfig" - - source "drivers/mtd/ubi/Kconfig" ---- a/drivers/mtd/Makefile -+++ b/drivers/mtd/Makefile -@@ -37,6 +37,7 @@ inftl-objs := inftlcore.o inftlmount.o - - obj-y += chips/ lpddr/ maps/ devices/ nand/ onenand/ tests/ - -+obj-$(CONFIG_MTD_SPI_NAND) += spi-nand/ - obj-$(CONFIG_MTD_SPI_NOR) += spi-nor/ - obj-$(CONFIG_MTD_UBI) += ubi/ - ---- /dev/null -+++ b/drivers/mtd/spi-nand/Kconfig -@@ -0,0 +1,7 @@ -+menuconfig MTD_SPI_NAND -+ tristate "SPI NAND device support" -+ depends on MTD -+ select MTD_NAND -+ help -+ This is the framework for the SPI NAND. -+ ---- /dev/null -+++ b/drivers/mtd/spi-nand/Makefile -@@ -0,0 +1 @@ -+obj-$(CONFIG_MTD_SPI_NAND) += spi-nand-base.o ---- /dev/null -+++ b/drivers/mtd/spi-nand/spi-nand-base.c -@@ -0,0 +1,566 @@ -+/* -+ * Copyright (C) 2014 Imagination Technologies Ltd. -+ * -+ * 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; version 2 of the License. -+ * -+ * Notes: -+ * 1. Erase and program operations need to call write_enable() first, -+ * to clear the enable bit. This bit is cleared automatically after -+ * the erase or program operation. -+ * -+ */ -+ -+#include <linux/device.h> -+#include <linux/err.h> -+#include <linux/errno.h> -+#include <linux/kernel.h> -+#include <linux/module.h> -+#include <linux/mtd/rawnand.h> -+#include <linux/mtd/mtd.h> -+#include <linux/mtd/partitions.h> -+#include <linux/mtd/spi-nand.h> -+#include <linux/of.h> -+#include <linux/slab.h> -+ -+/* Registers common to all devices */ -+#define SPI_NAND_LOCK_REG 0xa0 -+#define SPI_NAND_PROT_UNLOCK_ALL 0x0 -+ -+#define SPI_NAND_FEATURE_REG 0xb0 -+#define SPI_NAND_ECC_EN BIT(4) -+#define SPI_NAND_QUAD_EN BIT(0) -+ -+#define SPI_NAND_STATUS_REG 0xc0 -+#define SPI_NAND_STATUS_REG_ECC_MASK 0x3 -+#define SPI_NAND_STATUS_REG_ECC_SHIFT 4 -+#define SPI_NAND_STATUS_REG_PROG_FAIL BIT(3) -+#define SPI_NAND_STATUS_REG_ERASE_FAIL BIT(2) -+#define SPI_NAND_STATUS_REG_WREN BIT(1) -+#define SPI_NAND_STATUS_REG_BUSY BIT(0) -+ -+#define SPI_NAND_CMD_BUF_LEN 8 -+ -+/* Rewind and fill the buffer with 0xff */ -+static void spi_nand_clear_buffer(struct spi_nand *snand) -+{ -+ snand->buf_start = 0; -+ memset(snand->data_buf, 0xff, snand->buf_size); -+} -+ -+static int spi_nand_enable_ecc(struct spi_nand *snand) -+{ -+ int ret; -+ -+ ret = snand->read_reg(snand, SPI_NAND_FEATURE_REG, snand->buf); -+ if (ret) -+ return ret; -+ -+ snand->buf[0] |= SPI_NAND_ECC_EN; -+ ret = snand->write_reg(snand, SPI_NAND_FEATURE_REG, snand->buf); -+ if (ret) -+ return ret; -+ snand->ecc = true; -+ -+ return 0; -+} -+ -+static int spi_nand_disable_ecc(struct spi_nand *snand) -+{ -+ int ret; -+ -+ ret = snand->read_reg(snand, SPI_NAND_FEATURE_REG, snand->buf); -+ if (ret) -+ return ret; -+ -+ snand->buf[0] &= ~SPI_NAND_ECC_EN; -+ ret = snand->write_reg(snand, SPI_NAND_FEATURE_REG, snand->buf); -+ if (ret) -+ return ret; -+ snand->ecc = false; -+ -+ return 0; -+} -+ -+static int spi_nand_enable_quad(struct spi_nand *snand) -+{ -+ int ret; -+ -+ ret = snand->read_reg(snand, SPI_NAND_FEATURE_REG, snand->buf); -+ if (ret) -+ return ret; -+ -+ snand->buf[0] |= SPI_NAND_QUAD_EN; -+ ret = snand->write_reg(snand, SPI_NAND_FEATURE_REG, snand->buf); -+ if (ret) -+ return ret; -+ -+ return 0; -+} -+/* -+ * Wait until the status register busy bit is cleared. -+ * Returns a negatie errno on error or time out, and a non-negative status -+ * value if the device is ready. -+ */ -+static int spi_nand_wait_till_ready(struct spi_nand *snand) -+{ -+ unsigned long deadline = jiffies + msecs_to_jiffies(100); -+ bool timeout = false; -+ int ret; -+ -+ /* -+ * Perhaps we should set a different timeout for each -+ * operation (reset, read, write, erase). -+ */ -+ while (!timeout) { -+ if (time_after_eq(jiffies, deadline)) -+ timeout = true; -+ -+ ret = snand->read_reg(snand, SPI_NAND_STATUS_REG, snand->buf); -+ if (ret < 0) { -+ dev_err(snand->dev, "error reading status register\n"); -+ return ret; -+ } else if (!(snand->buf[0] & SPI_NAND_STATUS_REG_BUSY)) { -+ return snand->buf[0]; -+ } -+ -+ cond_resched(); -+ } -+ -+ dev_err(snand->dev, "operation timed out\n"); -+ -+ return -ETIMEDOUT; -+} -+ -+static int spi_nand_reset(struct spi_nand *snand) -+{ -+ int ret; -+ -+ ret = snand->reset(snand); -+ if (ret < 0) { -+ dev_err(snand->dev, "reset command failed\n"); -+ return ret; -+ } -+ -+ /* -+ * The NAND core won't wait after a device reset, so we need -+ * to do that here. -+ */ -+ ret = spi_nand_wait_till_ready(snand); -+ if (ret < 0) -+ return ret; -+ return 0; -+} -+ -+static int spi_nand_status(struct spi_nand *snand) -+{ -+ int ret, status; -+ -+ ret = snand->read_reg(snand, SPI_NAND_STATUS_REG, snand->buf); -+ if (ret < 0) { -+ dev_err(snand->dev, "error reading status register\n"); -+ return ret; -+ } -+ status = snand->buf[0]; -+ -+ /* Convert this into standard NAND_STATUS values */ -+ if (status & SPI_NAND_STATUS_REG_BUSY) -+ snand->buf[0] = 0; -+ else -+ snand->buf[0] = NAND_STATUS_READY; -+ -+ if (status & SPI_NAND_STATUS_REG_PROG_FAIL || -+ status & SPI_NAND_STATUS_REG_ERASE_FAIL) -+ snand->buf[0] |= NAND_STATUS_FAIL; -+ -+ /* -+ * Since we unlock the entire device at initialization, unconditionally -+ * set the WP bit to indicate it's not protected. -+ */ -+ snand->buf[0] |= NAND_STATUS_WP; -+ return 0; -+} -+ -+static int spi_nand_erase(struct spi_nand *snand, int page_addr) -+{ -+ int ret; -+ -+ ret = snand->write_enable(snand); -+ if (ret < 0) { -+ dev_err(snand->dev, "write enable command failed\n"); -+ return ret; -+ } -+ -+ ret = snand->block_erase(snand, page_addr); -+ if (ret < 0) { -+ dev_err(snand->dev, "block erase command failed\n"); -+ return ret; -+ } -+ -+ return 0; -+} -+ -+static int spi_nand_write(struct spi_nand *snand) -+{ -+ int ret; -+ -+ /* Enable quad mode */ -+ ret = spi_nand_enable_quad(snand); -+ if (ret) { -+ dev_err(snand->dev, "error %d enabling quad mode\n", ret); -+ return ret; -+ } -+ /* Store the page to cache */ -+ ret = snand->store_cache(snand, 0, snand->buf_size, snand->data_buf); -+ if (ret < 0) { -+ dev_err(snand->dev, "error %d storing page 0x%x to cache\n", -+ ret, snand->page_addr); -+ return ret; -+ } -+ -+ ret = snand->write_enable(snand); -+ if (ret < 0) { -+ dev_err(snand->dev, "write enable command failed\n"); -+ return ret; -+ } -+ -+ /* Get page from the device cache into our internal buffer */ -+ ret = snand->write_page(snand, snand->page_addr); -+ if (ret < 0) { -+ dev_err(snand->dev, "error %d reading page 0x%x from cache\n", -+ ret, snand->page_addr); -+ return ret; -+ } -+ -+ return 0; -+} -+ -+static int spi_nand_read_id(struct spi_nand *snand) -+{ -+ int ret; -+ -+ ret = snand->read_id(snand, snand->data_buf); -+ if (ret < 0) { -+ dev_err(snand->dev, "error %d reading ID\n", ret); -+ return ret; -+ } -+ return 0; -+} -+ -+static int spi_nand_read_page(struct spi_nand *snand, unsigned int page_addr, -+ unsigned int page_offset, size_t length) -+{ -+ unsigned int corrected = 0, ecc_error = 0; -+ int ret; -+ -+ /* Load a page into the cache register */ -+ ret = snand->load_page(snand, page_addr); -+ if (ret < 0) { -+ dev_err(snand->dev, "error %d loading page 0x%x to cache\n", -+ ret, page_addr); -+ return ret; -+ } -+ -+ ret = spi_nand_wait_till_ready(snand); -+ if (ret < 0) -+ return ret; -+ -+ if (snand->ecc) { -+ snand->get_ecc_status(ret, &corrected, &ecc_error); -+ snand->bitflips = corrected; -+ -+ /* -+ * If there's an ECC error, print a message and notify MTD -+ * about it. Then complete the read, to load actual data on -+ * the buffer (instead of the status result). -+ */ -+ if (ecc_error) { -+ dev_err(snand->dev, -+ "internal ECC error reading page 0x%x\n", -+ page_addr); -+ snand->nand_chip.mtd.ecc_stats.failed++; -+ } else { -+ snand->nand_chip.mtd.ecc_stats.corrected += corrected; -+ } -+ } -+ -+ /* Enable quad mode */ -+ ret = spi_nand_enable_quad(snand); -+ if (ret) { -+ dev_err(snand->dev, "error %d enabling quad mode\n", ret); -+ return ret; -+ } -+ /* Get page from the device cache into our internal buffer */ -+ ret = snand->read_cache(snand, page_offset, length, snand->data_buf); -+ if (ret < 0) { -+ dev_err(snand->dev, "error %d reading page 0x%x from cache\n", -+ ret, page_addr); -+ return ret; -+ } -+ return 0; -+} -+ -+static u8 spi_nand_read_byte(struct mtd_info *mtd) -+{ -+ struct nand_chip *chip = mtd_to_nand(mtd); -+ struct spi_nand *snand = nand_get_controller_data(chip); -+ char val = 0xff; -+ -+ if (snand->buf_start < snand->buf_size) -+ val = snand->data_buf[snand->buf_start++]; -+ return val; -+} -+ -+static void spi_nand_write_buf(struct mtd_info *mtd, const u8 *buf, int len) -+{ -+ struct nand_chip *chip = mtd_to_nand(mtd); -+ struct spi_nand *snand = nand_get_controller_data(chip); -+ size_t n = min_t(size_t, len, snand->buf_size - snand->buf_start); -+ -+ memcpy(snand->data_buf + snand->buf_start, buf, n); -+ snand->buf_start += n; -+} -+ -+static void spi_nand_read_buf(struct mtd_info *mtd, u8 *buf, int len) -+{ -+ struct nand_chip *chip = mtd_to_nand(mtd); -+ struct spi_nand *snand = nand_get_controller_data(chip); -+ size_t n = min_t(size_t, len, snand->buf_size - snand->buf_start); -+ -+ memcpy(buf, snand->data_buf + snand->buf_start, n); -+ snand->buf_start += n; -+} -+ -+static int spi_nand_write_page_hwecc(struct mtd_info *mtd, -+ struct nand_chip *chip, const uint8_t *buf, int oob_required, -+ int page) -+{ -+ chip->write_buf(mtd, buf, mtd->writesize); -+ chip->write_buf(mtd, chip->oob_poi, mtd->oobsize); -+ -+ return 0; -+} -+ -+static int spi_nand_read_page_hwecc(struct mtd_info *mtd, -+ struct nand_chip *chip, uint8_t *buf, int oob_required, -+ int page) -+{ -+ struct spi_nand *snand = nand_get_controller_data(chip); -+ -+ chip->read_buf(mtd, buf, mtd->writesize); -+ chip->read_buf(mtd, chip->oob_poi, mtd->oobsize); -+ -+ return snand->bitflips; -+} -+ -+static int spi_nand_waitfunc(struct mtd_info *mtd, struct nand_chip *chip) -+{ -+ struct spi_nand *snand = nand_get_controller_data(chip); -+ int ret; -+ -+ ret = spi_nand_wait_till_ready(snand); -+ -+ if (ret < 0) { -+ return NAND_STATUS_FAIL; -+ } else if (ret & SPI_NAND_STATUS_REG_PROG_FAIL) { -+ dev_err(snand->dev, "page program failed\n"); -+ return NAND_STATUS_FAIL; -+ } else if (ret & SPI_NAND_STATUS_REG_ERASE_FAIL) { -+ dev_err(snand->dev, "block erase failed\n"); -+ return NAND_STATUS_FAIL; -+ } -+ -+ return NAND_STATUS_READY; -+} -+ -+static void spi_nand_cmdfunc(struct mtd_info *mtd, unsigned int command, -+ int column, int page_addr) -+{ -+ struct nand_chip *chip = mtd_to_nand(mtd); -+ struct spi_nand *snand = nand_get_controller_data(chip); -+ -+ /* -+ * In case there's any unsupported command, let's make sure -+ * we don't keep garbage around in the buffer. -+ */ -+ if (command != NAND_CMD_PAGEPROG) { -+ spi_nand_clear_buffer(snand); -+ snand->page_addr = 0; -+ } -+ -+ switch (command) { -+ case NAND_CMD_READ0: -+ spi_nand_read_page(snand, page_addr, 0, mtd->writesize); -+ break; -+ case NAND_CMD_READOOB: -+ spi_nand_disable_ecc(snand); -+ spi_nand_read_page(snand, page_addr, mtd->writesize, -+ mtd->oobsize); -+ spi_nand_enable_ecc(snand); -+ break; -+ case NAND_CMD_READID: -+ spi_nand_read_id(snand); -+ break; -+ case NAND_CMD_ERASE1: -+ spi_nand_erase(snand, page_addr); -+ break; -+ case NAND_CMD_ERASE2: -+ /* There's nothing to do here, as the erase is one-step */ -+ break; -+ case NAND_CMD_SEQIN: -+ snand->buf_start = column; -+ snand->page_addr = page_addr; -+ break; -+ case NAND_CMD_PAGEPROG: -+ spi_nand_write(snand); -+ break; -+ case NAND_CMD_STATUS: -+ spi_nand_status(snand); -+ break; -+ case NAND_CMD_RESET: -+ spi_nand_reset(snand); -+ break; -+ default: -+ dev_err(&mtd->dev, "unknown command 0x%x\n", command); -+ } -+} -+ -+static void spi_nand_select_chip(struct mtd_info *mtd, int chip) -+{ -+ /* We need this to override the default */ -+} -+ -+int spi_nand_check(struct spi_nand *snand) -+{ -+ if (!snand->dev) -+ return -ENODEV; -+ if (!snand->read_cache) -+ return -ENODEV; -+ if (!snand->load_page) -+ return -ENODEV; -+ if (!snand->store_cache) -+ return -ENODEV; -+ if (!snand->write_page) -+ return -ENODEV; -+ if (!snand->write_reg) -+ return -ENODEV; -+ if (!snand->read_reg) -+ return -ENODEV; -+ if (!snand->block_erase) -+ return -ENODEV; -+ if (!snand->reset) -+ return -ENODEV; -+ if (!snand->write_enable) -+ return -ENODEV; -+ if (!snand->write_disable) -+ return -ENODEV; -+ if (!snand->get_ecc_status) -+ return -ENODEV; -+ return 0; -+} -+ -+int spi_nand_register(struct spi_nand *snand, struct nand_flash_dev *flash_ids) -+{ -+ struct nand_chip *chip = &snand->nand_chip; -+ struct mtd_info *mtd = nand_to_mtd(chip); -+ struct device_node *np = snand->dev->of_node; -+ const char __maybe_unused *of_mtd_name = NULL; -+ int ret; -+ -+ /* Let's check all the hooks are in-place so we don't panic later */ -+ ret = spi_nand_check(snand); -+ if (ret) -+ return ret; -+ -+ nand_set_controller_data(chip, snand); -+ nand_set_flash_node(chip, np); -+ chip->read_buf = spi_nand_read_buf; -+ chip->write_buf = spi_nand_write_buf; -+ chip->read_byte = spi_nand_read_byte; -+ chip->cmdfunc = spi_nand_cmdfunc; -+ chip->waitfunc = spi_nand_waitfunc; -+ chip->select_chip = spi_nand_select_chip; -+ chip->options |= NAND_NO_SUBPAGE_WRITE; -+ chip->bits_per_cell = 1; -+ -+ mtd_set_ooblayout(mtd, snand->ooblayout); -+ chip->ecc.read_page = spi_nand_read_page_hwecc; -+ chip->ecc.write_page = spi_nand_write_page_hwecc; -+ chip->ecc.mode = NAND_ECC_HW; -+ -+ if (of_property_read_bool(np, "nand-on-flash-bbt")) -+ chip->bbt_options |= NAND_BBT_USE_FLASH | NAND_BBT_NO_OOB; -+ -+#ifdef CONFIG_MTD_OF_PARTS -+ of_property_read_string(np, "linux,mtd-name", &of_mtd_name); -+#endif -+ if (of_mtd_name) -+ mtd->name = of_mtd_name; -+ else -+ mtd->name = snand->name; -+ mtd->owner = THIS_MODULE; -+ -+ /* Allocate buffer to be used to read/write the internal registers */ -+ snand->buf = kmalloc(SPI_NAND_CMD_BUF_LEN, GFP_KERNEL); -+ if (!snand->buf) -+ return -ENOMEM; -+ -+ /* This is enabled at device power up but we'd better make sure */ -+ ret = spi_nand_enable_ecc(snand); -+ if (ret) -+ return ret; -+ -+ /* Preallocate buffer for flash identification (NAND_CMD_READID) */ -+ snand->buf_size = SPI_NAND_CMD_BUF_LEN; -+ snand->data_buf = kmalloc(snand->buf_size, GFP_KERNEL); -+ -+ ret = nand_scan_ident(mtd, 1, flash_ids); -+ if (ret) -+ return ret; -+ -+ /* -+ * SPI NAND has on-die ECC, which means we can correct as much as -+ * we are required to. This must be done after identification of -+ * the device. -+ */ -+ chip->ecc.strength = chip->ecc_strength_ds; -+ chip->ecc.size = chip->ecc_step_ds; -+ -+ /* -+ * Unlock all the device before calling nand_scan_tail. This is needed -+ * in case the in-flash bad block table needs to be created. -+ * We could override __nand_unlock(), but since it's not currently used -+ * by the NAND core we call this explicitly. -+ */ -+ snand->buf[0] = SPI_NAND_PROT_UNLOCK_ALL; -+ ret = snand->write_reg(snand, SPI_NAND_LOCK_REG, snand->buf); -+ if (ret) -+ return ret; -+ -+ /* Free the buffer and allocate a good one, to fit a page plus OOB */ -+ kfree(snand->data_buf); -+ -+ snand->buf_size = mtd->writesize + mtd->oobsize; -+ snand->data_buf = kmalloc(snand->buf_size, GFP_KERNEL); -+ if (!snand->data_buf) -+ return -ENOMEM; -+ -+ ret = nand_scan_tail(mtd); -+ if (ret) -+ return ret; -+ -+ return mtd_device_register(mtd, NULL, 0); -+} -+EXPORT_SYMBOL_GPL(spi_nand_register); -+ -+void spi_nand_unregister(struct spi_nand *snand) -+{ -+ kfree(snand->buf); -+ kfree(snand->data_buf); -+} -+EXPORT_SYMBOL_GPL(spi_nand_unregister); -+ -+MODULE_AUTHOR("Ezequiel Garcia <ezequiel.garcia@imgtec.com>"); -+MODULE_DESCRIPTION("Framework for SPI NAND"); -+MODULE_LICENSE("GPL v2"); ---- /dev/null -+++ b/include/linux/mtd/spi-nand.h -@@ -0,0 +1,54 @@ -+/* -+ * Copyright (C) 2014 Imagination Technologies Ltd. -+ * -+ * 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; version 2 of the License. -+ */ -+ -+#ifndef __LINUX_MTD_SPI_NAND_H -+#define __LINUX_MTD_SPI_NAND_H -+ -+#include <linux/mtd/mtd.h> -+#include <linux/mtd/rawnand.h> -+ -+struct spi_nand { -+ struct nand_chip nand_chip; -+ struct device *dev; -+ const char *name; -+ -+ u8 *buf, *data_buf; -+ size_t buf_size; -+ off_t buf_start; -+ unsigned int page_addr; -+ unsigned int bitflips; -+ bool ecc; -+ struct mtd_ooblayout_ops *ooblayout; -+ -+ int (*reset)(struct spi_nand *snand); -+ int (*read_id)(struct spi_nand *snand, u8 *buf); -+ -+ int (*write_disable)(struct spi_nand *snand); -+ int (*write_enable)(struct spi_nand *snand); -+ -+ int (*read_reg)(struct spi_nand *snand, u8 opcode, u8 *buf); -+ int (*write_reg)(struct spi_nand *snand, u8 opcode, u8 *buf); -+ void (*get_ecc_status)(unsigned int status, -+ unsigned int *corrected, -+ unsigned int *ecc_errors); -+ -+ int (*store_cache)(struct spi_nand *snand, unsigned int page_offset, -+ size_t length, u8 *write_buf); -+ int (*write_page)(struct spi_nand *snand, unsigned int page_addr); -+ int (*load_page)(struct spi_nand *snand, unsigned int page_addr); -+ int (*read_cache)(struct spi_nand *snand, unsigned int page_offset, -+ size_t length, u8 *read_buf); -+ int (*block_erase)(struct spi_nand *snand, unsigned int page_addr); -+ -+ void *priv; -+}; -+ -+int spi_nand_register(struct spi_nand *snand, struct nand_flash_dev *flash_ids); -+void spi_nand_unregister(struct spi_nand *snand); -+ -+#endif diff --git a/target/linux/pistachio/patches-4.14/414-mtd-spi-nand-Support-Gigadevice-GD5F.patch b/target/linux/pistachio/patches-4.14/414-mtd-spi-nand-Support-Gigadevice-GD5F.patch deleted file mode 100644 index 1f1461061c..0000000000 --- a/target/linux/pistachio/patches-4.14/414-mtd-spi-nand-Support-Gigadevice-GD5F.patch +++ /dev/null @@ -1,524 +0,0 @@ -From 7723e59d483a883578115a73eb87eb7fff0ff724 Mon Sep 17 00:00:00 2001 -From: Ezequiel Garcia <ezequiel.garcia@imgtec.com> -Date: Tue, 28 Feb 2017 10:37:24 +0000 -Subject: mtd: spi-nand: Support Gigadevice GD5F - -This commit uses the recently introduced SPI NAND framework to support -the Gigadevice GD5F serial NAND device. - -The current support includes: - - * Page read and page program operations (using on-die ECC) - * Page out-of-band read - * Erase - * Reset - * Device status retrieval - * Device ID retrieval - -(based on http://lists.infradead.org/pipermail/linux-mtd/2014-December/056769.html) - -Signed-off-by: Ezequiel Garcia <ezequiel.garcia@imgtec.com> -Signed-off-by: Ian Pozella <Ian.Pozella@imgtec.com> ---- - drivers/mtd/spi-nand/Kconfig | 10 + - drivers/mtd/spi-nand/Makefile | 1 + - drivers/mtd/spi-nand/spi-nand-device.c | 472 +++++++++++++++++++++++++++++++++ - 3 files changed, 483 insertions(+) - create mode 100644 drivers/mtd/spi-nand/spi-nand-device.c - ---- a/drivers/mtd/spi-nand/Kconfig -+++ b/drivers/mtd/spi-nand/Kconfig -@@ -5,3 +5,13 @@ menuconfig MTD_SPI_NAND - help - This is the framework for the SPI NAND. - -+if MTD_SPI_NAND -+ -+config MTD_SPI_NAND_DEVICES -+ tristate "Support for SPI NAND devices" -+ default y -+ depends on MTD_SPI_NAND -+ help -+ Select this option if you require support for SPI NAND devices. -+ -+endif # MTD_SPI_NAND ---- a/drivers/mtd/spi-nand/Makefile -+++ b/drivers/mtd/spi-nand/Makefile -@@ -1 +1,2 @@ - obj-$(CONFIG_MTD_SPI_NAND) += spi-nand-base.o -+obj-$(CONFIG_MTD_SPI_NAND_DEVICES) += spi-nand-device.o ---- /dev/null -+++ b/drivers/mtd/spi-nand/spi-nand-device.c -@@ -0,0 +1,472 @@ -+/* -+ * Copyright (C) 2014 Imagination Technologies Ltd. -+ * -+ * 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; version 2 of the License. -+ * -+ * Notes: -+ * 1. We avoid using a stack-allocated buffer for SPI messages. Using -+ * a kmalloced buffer is probably better, given we shouldn't assume -+ * any particular usage by SPI core. -+ */ -+ -+#include <linux/device.h> -+#include <linux/err.h> -+#include <linux/errno.h> -+#include <linux/module.h> -+#include <linux/mtd/mtd.h> -+#include <linux/mtd/partitions.h> -+#include <linux/mtd/spi-nand.h> -+#include <linux/sizes.h> -+#include <linux/spi/spi.h> -+ -+/* SPI NAND commands */ -+#define SPI_NAND_WRITE_ENABLE 0x06 -+#define SPI_NAND_WRITE_DISABLE 0x04 -+#define SPI_NAND_GET_FEATURE 0x0f -+#define SPI_NAND_SET_FEATURE 0x1f -+#define SPI_NAND_PAGE_READ 0x13 -+#define SPI_NAND_READ_CACHE 0x03 -+#define SPI_NAND_FAST_READ_CACHE 0x0b -+#define SPI_NAND_READ_CACHE_X2 0x3b -+#define SPI_NAND_READ_CACHE_X4 0x6b -+#define SPI_NAND_READ_CACHE_DUAL_IO 0xbb -+#define SPI_NAND_READ_CACHE_QUAD_IO 0xeb -+#define SPI_NAND_READ_ID 0x9f -+#define SPI_NAND_PROGRAM_LOAD 0x02 -+#define SPI_NAND_PROGRAM_LOAD4 0x32 -+#define SPI_NAND_PROGRAM_EXEC 0x10 -+#define SPI_NAND_PROGRAM_LOAD_RANDOM 0x84 -+#define SPI_NAND_PROGRAM_LOAD_RANDOM4 0xc4 -+#define SPI_NAND_BLOCK_ERASE 0xd8 -+#define SPI_NAND_RESET 0xff -+ -+#define SPI_NAND_GD5F_READID_LEN 2 -+ -+#define SPI_NAND_GD5F_ECC_MASK (BIT(0) | BIT(1) | BIT(2)) -+#define SPI_NAND_GD5F_ECC_UNCORR (BIT(0) | BIT(1) | BIT(2)) -+#define SPI_NAND_GD5F_ECC_SHIFT 4 -+ -+static int spi_nand_gd5f_ooblayout_256_ecc(struct mtd_info *mtd, int section, -+ struct mtd_oob_region *oobregion) -+{ -+ if (section) -+ return -ERANGE; -+ -+ oobregion->offset = 128; -+ oobregion->length = 128; -+ -+ return 0; -+} -+ -+static int spi_nand_gd5f_ooblayout_256_free(struct mtd_info *mtd, int section, -+ struct mtd_oob_region *oobregion) -+{ -+ if (section) -+ return -ERANGE; -+ -+ oobregion->offset = 1; -+ oobregion->length = 127; -+ -+ return 0; -+} -+ -+static const struct mtd_ooblayout_ops spi_nand_gd5f_oob_256_ops = { -+ .ecc = spi_nand_gd5f_ooblayout_256_ecc, -+ .free = spi_nand_gd5f_ooblayout_256_free, -+}; -+ -+static struct nand_flash_dev spi_nand_flash_ids[] = { -+ { -+ .name = "SPI NAND 512MiB 3,3V", -+ .id = { NAND_MFR_GIGADEVICE, 0xb4 }, -+ .chipsize = 512, -+ .pagesize = SZ_4K, -+ .erasesize = SZ_256K, -+ .id_len = 2, -+ .oobsize = 256, -+ .ecc.strength_ds = 8, -+ .ecc.step_ds = 512, -+ }, -+ { -+ .name = "SPI NAND 512MiB 1,8V", -+ .id = { NAND_MFR_GIGADEVICE, 0xa4 }, -+ .chipsize = 512, -+ .pagesize = SZ_4K, -+ .erasesize = SZ_256K, -+ .id_len = 2, -+ .oobsize = 256, -+ .ecc.strength_ds = 8, -+ .ecc.step_ds = 512, -+ }, -+}; -+ -+enum spi_nand_device_variant { -+ SPI_NAND_GENERIC, -+ SPI_NAND_GD5F, -+}; -+ -+struct spi_nand_device_cmd { -+ -+ /* -+ * Command and address. I/O errors have been observed if a -+ * separate spi_transfer is used for command and address, -+ * so keep them together. -+ */ -+ u32 n_cmd; -+ u8 cmd[5]; -+ -+ /* Tx data */ -+ u32 n_tx; -+ u8 *tx_buf; -+ -+ /* Rx data */ -+ u32 n_rx; -+ u8 *rx_buf; -+ u8 rx_nbits; -+ u8 tx_nbits; -+}; -+ -+struct spi_nand_device { -+ struct spi_nand spi_nand; -+ struct spi_device *spi; -+ -+ struct spi_nand_device_cmd cmd; -+}; -+ -+static int spi_nand_send_command(struct spi_device *spi, -+ struct spi_nand_device_cmd *cmd) -+{ -+ struct spi_message message; -+ struct spi_transfer x[2]; -+ -+ if (!cmd->n_cmd) { -+ dev_err(&spi->dev, "cannot send an empty command\n"); -+ return -EINVAL; -+ } -+ -+ if (cmd->n_tx && cmd->n_rx) { -+ dev_err(&spi->dev, "cannot send and receive data at the same time\n"); -+ return -EINVAL; -+ } -+ -+ spi_message_init(&message); -+ memset(x, 0, sizeof(x)); -+ -+ /* Command and address */ -+ x[0].len = cmd->n_cmd; -+ x[0].tx_buf = cmd->cmd; -+ x[0].tx_nbits = cmd->tx_nbits; -+ spi_message_add_tail(&x[0], &message); -+ -+ /* Data to be transmitted */ -+ if (cmd->n_tx) { -+ x[1].len = cmd->n_tx; -+ x[1].tx_buf = cmd->tx_buf; -+ x[1].tx_nbits = cmd->tx_nbits; -+ spi_message_add_tail(&x[1], &message); -+ } -+ -+ /* Data to be received */ -+ if (cmd->n_rx) { -+ x[1].len = cmd->n_rx; -+ x[1].rx_buf = cmd->rx_buf; -+ x[1].rx_nbits = cmd->rx_nbits; -+ spi_message_add_tail(&x[1], &message); -+ } -+ -+ return spi_sync(spi, &message); -+} -+ -+static int spi_nand_device_reset(struct spi_nand *snand) -+{ -+ struct spi_nand_device *snand_dev = snand->priv; -+ struct spi_nand_device_cmd *cmd = &snand_dev->cmd; -+ -+ memset(cmd, 0, sizeof(struct spi_nand_device_cmd)); -+ cmd->n_cmd = 1; -+ cmd->cmd[0] = SPI_NAND_RESET; -+ -+ dev_dbg(snand->dev, "%s\n", __func__); -+ -+ return spi_nand_send_command(snand_dev->spi, cmd); -+} -+ -+static int spi_nand_device_read_reg(struct spi_nand *snand, u8 opcode, u8 *buf) -+{ -+ struct spi_nand_device *snand_dev = snand->priv; -+ struct spi_nand_device_cmd *cmd = &snand_dev->cmd; -+ -+ memset(cmd, 0, sizeof(struct spi_nand_device_cmd)); -+ cmd->n_cmd = 2; -+ cmd->cmd[0] = SPI_NAND_GET_FEATURE; -+ cmd->cmd[1] = opcode; -+ cmd->n_rx = 1; -+ cmd->rx_buf = buf; -+ -+ dev_dbg(snand->dev, "%s: reg 0%x\n", __func__, opcode); -+ -+ return spi_nand_send_command(snand_dev->spi, cmd); -+} -+ -+static int spi_nand_device_write_reg(struct spi_nand *snand, u8 opcode, u8 *buf) -+{ -+ struct spi_nand_device *snand_dev = snand->priv; -+ struct spi_nand_device_cmd *cmd = &snand_dev->cmd; -+ -+ memset(cmd, 0, sizeof(struct spi_nand_device_cmd)); -+ cmd->n_cmd = 2; -+ cmd->cmd[0] = SPI_NAND_SET_FEATURE; -+ cmd->cmd[1] = opcode; -+ cmd->n_tx = 1; -+ cmd->tx_buf = buf; -+ -+ dev_dbg(snand->dev, "%s: reg 0%x\n", __func__, opcode); -+ -+ return spi_nand_send_command(snand_dev->spi, cmd); -+} -+ -+static int spi_nand_device_write_enable(struct spi_nand *snand) -+{ -+ struct spi_nand_device *snand_dev = snand->priv; -+ struct spi_nand_device_cmd *cmd = &snand_dev->cmd; -+ -+ memset(cmd, 0, sizeof(struct spi_nand_device_cmd)); -+ cmd->n_cmd = 1; -+ cmd->cmd[0] = SPI_NAND_WRITE_ENABLE; -+ -+ dev_dbg(snand->dev, "%s\n", __func__); -+ -+ return spi_nand_send_command(snand_dev->spi, cmd); -+} -+ -+static int spi_nand_device_write_disable(struct spi_nand *snand) -+{ -+ struct spi_nand_device *snand_dev = snand->priv; -+ struct spi_nand_device_cmd *cmd = &snand_dev->cmd; -+ -+ memset(cmd, 0, sizeof(struct spi_nand_device_cmd)); -+ cmd->n_cmd = 1; -+ cmd->cmd[0] = SPI_NAND_WRITE_DISABLE; -+ -+ dev_dbg(snand->dev, "%s\n", __func__); -+ -+ return spi_nand_send_command(snand_dev->spi, cmd); -+} -+ -+static int spi_nand_device_write_page(struct spi_nand *snand, -+ unsigned int page_addr) -+{ -+ struct spi_nand_device *snand_dev = snand->priv; -+ struct spi_nand_device_cmd *cmd = &snand_dev->cmd; -+ -+ memset(cmd, 0, sizeof(struct spi_nand_device_cmd)); -+ cmd->n_cmd = 4; -+ cmd->cmd[0] = SPI_NAND_PROGRAM_EXEC; -+ cmd->cmd[1] = (u8)((page_addr & 0xff0000) >> 16); -+ cmd->cmd[2] = (u8)((page_addr & 0xff00) >> 8); -+ cmd->cmd[3] = (u8)(page_addr & 0xff); -+ -+ dev_dbg(snand->dev, "%s: page 0x%x\n", __func__, page_addr); -+ -+ return spi_nand_send_command(snand_dev->spi, cmd); -+} -+ -+static int spi_nand_device_store_cache(struct spi_nand *snand, -+ unsigned int page_offset, size_t length, -+ u8 *write_buf) -+{ -+ struct spi_nand_device *snand_dev = snand->priv; -+ struct spi_nand_device_cmd *cmd = &snand_dev->cmd; -+ struct spi_device *spi = snand_dev->spi; -+ -+ memset(cmd, 0, sizeof(struct spi_nand_device_cmd)); -+ cmd->n_cmd = 3; -+ cmd->cmd[0] = spi->mode & SPI_TX_QUAD ? SPI_NAND_PROGRAM_LOAD4 : -+ SPI_NAND_PROGRAM_LOAD; -+ cmd->cmd[1] = (u8)((page_offset & 0xff00) >> 8); -+ cmd->cmd[2] = (u8)(page_offset & 0xff); -+ cmd->n_tx = length; -+ cmd->tx_buf = write_buf; -+ cmd->tx_nbits = spi->mode & SPI_TX_QUAD ? 4 : 1; -+ -+ dev_dbg(snand->dev, "%s: offset 0x%x\n", __func__, page_offset); -+ -+ return spi_nand_send_command(snand_dev->spi, cmd); -+} -+ -+static int spi_nand_device_load_page(struct spi_nand *snand, -+ unsigned int page_addr) -+{ -+ struct spi_nand_device *snand_dev = snand->priv; -+ struct spi_nand_device_cmd *cmd = &snand_dev->cmd; -+ -+ memset(cmd, 0, sizeof(struct spi_nand_device_cmd)); -+ cmd->n_cmd = 4; -+ cmd->cmd[0] = SPI_NAND_PAGE_READ; -+ cmd->cmd[1] = (u8)((page_addr & 0xff0000) >> 16); -+ cmd->cmd[2] = (u8)((page_addr & 0xff00) >> 8); -+ cmd->cmd[3] = (u8)(page_addr & 0xff); -+ -+ dev_dbg(snand->dev, "%s: page 0x%x\n", __func__, page_addr); -+ -+ return spi_nand_send_command(snand_dev->spi, cmd); -+} -+ -+static int spi_nand_device_read_cache(struct spi_nand *snand, -+ unsigned int page_offset, size_t length, -+ u8 *read_buf) -+{ -+ struct spi_nand_device *snand_dev = snand->priv; -+ struct spi_nand_device_cmd *cmd = &snand_dev->cmd; -+ struct spi_device *spi = snand_dev->spi; -+ -+ memset(cmd, 0, sizeof(struct spi_nand_device_cmd)); -+ if ((spi->mode & SPI_RX_DUAL) || (spi->mode & SPI_RX_QUAD)) -+ cmd->n_cmd = 5; -+ else -+ cmd->n_cmd = 4; -+ cmd->cmd[0] = (spi->mode & SPI_RX_QUAD) ? SPI_NAND_READ_CACHE_X4 : -+ ((spi->mode & SPI_RX_DUAL) ? SPI_NAND_READ_CACHE_X2 : -+ SPI_NAND_READ_CACHE); -+ cmd->cmd[1] = 0; /* dummy byte */ -+ cmd->cmd[2] = (u8)((page_offset & 0xff00) >> 8); -+ cmd->cmd[3] = (u8)(page_offset & 0xff); -+ cmd->cmd[4] = 0; /* dummy byte */ -+ cmd->n_rx = length; -+ cmd->rx_buf = read_buf; -+ cmd->rx_nbits = (spi->mode & SPI_RX_QUAD) ? 4 : -+ ((spi->mode & SPI_RX_DUAL) ? 2 : 1); -+ -+ dev_dbg(snand->dev, "%s: offset 0x%x\n", __func__, page_offset); -+ -+ return spi_nand_send_command(snand_dev->spi, cmd); -+} -+ -+static int spi_nand_device_block_erase(struct spi_nand *snand, -+ unsigned int page_addr) -+{ -+ struct spi_nand_device *snand_dev = snand->priv; -+ struct spi_nand_device_cmd *cmd = &snand_dev->cmd; -+ -+ memset(cmd, 0, sizeof(struct spi_nand_device_cmd)); -+ cmd->n_cmd = 4; -+ cmd->cmd[0] = SPI_NAND_BLOCK_ERASE; -+ cmd->cmd[1] = (u8)((page_addr & 0xff0000) >> 16); -+ cmd->cmd[2] = (u8)((page_addr & 0xff00) >> 8); -+ cmd->cmd[3] = (u8)(page_addr & 0xff); -+ -+ dev_dbg(snand->dev, "%s: block 0x%x\n", __func__, page_addr); -+ -+ return spi_nand_send_command(snand_dev->spi, cmd); -+} -+ -+static int spi_nand_gd5f_read_id(struct spi_nand *snand, u8 *buf) -+{ -+ struct spi_nand_device *snand_dev = snand->priv; -+ struct spi_nand_device_cmd *cmd = &snand_dev->cmd; -+ -+ memset(cmd, 0, sizeof(struct spi_nand_device_cmd)); -+ cmd->n_cmd = 1; -+ cmd->cmd[0] = SPI_NAND_READ_ID; -+ cmd->n_rx = SPI_NAND_GD5F_READID_LEN; -+ cmd->rx_buf = buf; -+ -+ dev_dbg(snand->dev, "%s\n", __func__); -+ -+ return spi_nand_send_command(snand_dev->spi, cmd); -+} -+ -+static void spi_nand_gd5f_ecc_status(unsigned int status, -+ unsigned int *corrected, -+ unsigned int *ecc_error) -+{ -+ unsigned int ecc_status = (status >> SPI_NAND_GD5F_ECC_SHIFT) & -+ SPI_NAND_GD5F_ECC_MASK; -+ -+ *ecc_error = (ecc_status == SPI_NAND_GD5F_ECC_UNCORR) ? 1 : 0; -+ if (*ecc_error == 0) -+ *corrected = (ecc_status > 1) ? (2 + ecc_status) : 0; -+} -+ -+static int spi_nand_device_probe(struct spi_device *spi) -+{ -+ enum spi_nand_device_variant variant; -+ struct spi_nand_device *priv; -+ struct spi_nand *snand; -+ int ret; -+ -+ priv = devm_kzalloc(&spi->dev, sizeof(*priv), GFP_KERNEL); -+ if (!priv) -+ return -ENOMEM; -+ -+ snand = &priv->spi_nand; -+ -+ snand->read_cache = spi_nand_device_read_cache; -+ snand->load_page = spi_nand_device_load_page; -+ snand->store_cache = spi_nand_device_store_cache; -+ snand->write_page = spi_nand_device_write_page; -+ snand->write_reg = spi_nand_device_write_reg; -+ snand->read_reg = spi_nand_device_read_reg; -+ snand->block_erase = spi_nand_device_block_erase; -+ snand->reset = spi_nand_device_reset; -+ snand->write_enable = spi_nand_device_write_enable; -+ snand->write_disable = spi_nand_device_write_disable; -+ snand->dev = &spi->dev; -+ snand->priv = priv; -+ -+ /* This'll mean we won't need to specify any specific compatible string -+ * for a given device, and instead just support spi-nand. -+ */ -+ variant = spi_get_device_id(spi)->driver_data; -+ switch (variant) { -+ case SPI_NAND_GD5F: -+ snand->read_id = spi_nand_gd5f_read_id; -+ snand->get_ecc_status = spi_nand_gd5f_ecc_status; -+ snand->ooblayout = &spi_nand_gd5f_oob_256_ops; -+ break; -+ default: -+ dev_err(snand->dev, "unknown device\n"); -+ return -ENODEV; -+ } -+ -+ spi_set_drvdata(spi, snand); -+ priv->spi = spi; -+ -+ ret = spi_nand_register(snand, spi_nand_flash_ids); -+ if (ret) -+ return ret; -+ return 0; -+} -+ -+static int spi_nand_device_remove(struct spi_device *spi) -+{ -+ struct spi_nand *snand = spi_get_drvdata(spi); -+ -+ spi_nand_unregister(snand); -+ -+ return 0; -+} -+ -+const struct spi_device_id spi_nand_id_table[] = { -+ { "spi-nand", SPI_NAND_GENERIC }, -+ { "gd5f", SPI_NAND_GD5F }, -+ { }, -+}; -+MODULE_DEVICE_TABLE(spi, spi_nand_id_table); -+ -+static struct spi_driver spi_nand_device_driver = { -+ .driver = { -+ .name = "spi_nand_device", -+ .owner = THIS_MODULE, -+ }, -+ .id_table = spi_nand_id_table, -+ .probe = spi_nand_device_probe, -+ .remove = spi_nand_device_remove, -+}; -+module_spi_driver(spi_nand_device_driver); -+ -+MODULE_AUTHOR("Ezequiel Garcia <ezequiel.garcia@imgtec.com>"); -+MODULE_DESCRIPTION("SPI NAND device support"); -+MODULE_LICENSE("GPL v2"); diff --git a/target/linux/pistachio/patches-4.14/901-MIPS-DTS-img-marduk-add-nor-partition-name.patch b/target/linux/pistachio/patches-4.14/901-MIPS-DTS-img-marduk-add-nor-partition-name.patch deleted file mode 100644 index 6af11eaa36..0000000000 --- a/target/linux/pistachio/patches-4.14/901-MIPS-DTS-img-marduk-add-nor-partition-name.patch +++ /dev/null @@ -1,20 +0,0 @@ -From b5f49b448cd3c7ab930f1a53c88f739a86071df8 Mon Sep 17 00:00:00 2001 -From: Ian Pozella <Ian.Pozella@imgtec.com> -Date: Mon, 20 Feb 2017 10:38:07 +0000 -Subject: MIPS: DTS: img: marduk: add nor partition name - -Signed-off-by: Ian Pozella <Ian.Pozella@imgtec.com> ---- - arch/mips/boot/dts/img/pistachio_marduk.dts | 1 + - 1 file changed, 1 insertion(+) - ---- a/arch/mips/boot/dts/img/pistachio_marduk.dts -+++ b/arch/mips/boot/dts/img/pistachio_marduk.dts -@@ -90,6 +90,7 @@ - compatible = "spansion,s25fl016k", "jedec,spi-nor"; - reg = <0>; - spi-max-frequency = <50000000>; -+ linux,mtd-name = "spi-nor"; - }; - }; - diff --git a/target/linux/pistachio/patches-4.14/902-MIPS-DTS-img-marduk-add-nand-device-support.patch b/target/linux/pistachio/patches-4.14/902-MIPS-DTS-img-marduk-add-nand-device-support.patch deleted file mode 100644 index bd03f08126..0000000000 --- a/target/linux/pistachio/patches-4.14/902-MIPS-DTS-img-marduk-add-nand-device-support.patch +++ /dev/null @@ -1,30 +0,0 @@ -From c13cfb3a49cf1578bb85f19a7066f262503a39ba Mon Sep 17 00:00:00 2001 -From: Abhimanyu Vishwakarma <Abhimanyu.Vishwakarma@imgtec.com> -Date: Thu, 24 Nov 2016 19:26:46 +0530 -Subject: MIPS: DTS: img: marduk: add nand device support - -Signed-off-by: Abhimanyu Vishwakarma <Abhimanyu.Vishwakarma@imgtec.com> ---- - arch/mips/boot/dts/img/pistachio_marduk.dts | 11 +++++++++++ - 1 file changed, 11 insertions(+) - ---- a/arch/mips/boot/dts/img/pistachio_marduk.dts -+++ b/arch/mips/boot/dts/img/pistachio_marduk.dts -@@ -92,6 +92,17 @@ - spi-max-frequency = <50000000>; - linux,mtd-name = "spi-nor"; - }; -+ flash@1 { -+ compatible = "gigadevice,gd5f"; -+ reg = <1>; -+ spi-max-frequency = <50000000>; -+ nand-on-flash-bbt; -+ spi-rx-bus-width = <2>; -+ spi-tx-bus-width = <4>; -+ #address-cells = <1>; -+ #size-cells = <1>; -+ linux,mtd-name = "spi-nand"; -+ }; - }; - - &uart0 { |