--- /dev/null
+CONFIG_ARCH_32BIT_OFF_T=y
+CONFIG_ARCH_HIBERNATION_POSSIBLE=y
+CONFIG_ARCH_KEEP_MEMBLOCK=y
+CONFIG_ARCH_MMAP_RND_BITS_MAX=15
+CONFIG_ARCH_MMAP_RND_COMPAT_BITS_MAX=15
+CONFIG_ARCH_SUSPEND_POSSIBLE=y
+CONFIG_BLK_DEV_LOOP=y
+CONFIG_BLK_DEV_SD=y
+# CONFIG_BOARD_INGENIC is not set
+CONFIG_BOARD_SCACHE=y
+CONFIG_BUILTIN_DTB=y
+CONFIG_CEVT_R4K=y
+CONFIG_CLKSRC_MIPS_GIC=y
+CONFIG_CLKSRC_PISTACHIO=y
+CONFIG_CLOCKSOURCE_WATCHDOG=y
+CONFIG_CLOCKSOURCE_WATCHDOG_MAX_SKEW_US=100
+CONFIG_CLONE_BACKWARDS=y
+CONFIG_COMMON_CLK=y
+CONFIG_COMMON_CLK_PISTACHIO=y
+CONFIG_COMPAT_32BIT_TIME=y
+CONFIG_CONNECTOR=y
+CONFIG_CPU_GENERIC_DUMP_TLB=y
+CONFIG_CPU_HAS_DIEI=y
+CONFIG_CPU_HAS_PREFETCH=y
+CONFIG_CPU_HAS_RIXI=y
+# CONFIG_CPU_HAS_SMARTMIPS is not set
+CONFIG_CPU_HAS_SYNC=y
+CONFIG_CPU_IDLE=y
+CONFIG_CPU_IDLE_GOV_LADDER=y
+CONFIG_CPU_IDLE_GOV_MENU=y
+CONFIG_CPU_LITTLE_ENDIAN=y
+# CONFIG_CPU_MICROMIPS is not set
+CONFIG_CPU_MIPS32=y
+# CONFIG_CPU_MIPS32_R1 is not set
+CONFIG_CPU_MIPS32_R2=y
+# CONFIG_CPU_MIPS32_R6 is not set
+# CONFIG_CPU_MIPS64_R1 is not set
+# CONFIG_CPU_MIPS64_R2 is not set
+# CONFIG_CPU_MIPS64_R6 is not set
+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_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_CBC=y
+CONFIG_CRYPTO_CRC32C=y
+CONFIG_CRYPTO_DEFLATE=y
+CONFIG_CRYPTO_HASH_INFO=y
+CONFIG_CRYPTO_LIB_BLAKE2S_GENERIC=y
+CONFIG_CRYPTO_LIB_POLY1305_RSIZE=2
+CONFIG_CRYPTO_LIB_SHA256=y
+CONFIG_CRYPTO_LZO=y
+CONFIG_CRYPTO_MD5=y
+CONFIG_CRYPTO_RNG=y
+CONFIG_CRYPTO_RNG2=y
+CONFIG_CRYPTO_SHA1=y
+CONFIG_CRYPTO_SHA256=y
+CONFIG_CRYPTO_ZSTD=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_GENERIC=y
+CONFIG_EXT4_FS=y
+# CONFIG_FIT_IMAGE_FDT_BOSTON is not set
+# CONFIG_FIT_IMAGE_FDT_JAGUAR2 is not set
+# CONFIG_FIT_IMAGE_FDT_LUTON is not set
+CONFIG_FIT_IMAGE_FDT_MARDUK=y
+# CONFIG_FIT_IMAGE_FDT_NI169445 is not set
+# CONFIG_FIT_IMAGE_FDT_OCELOT is not set
+# CONFIG_FIT_IMAGE_FDT_SERVAL is not set
+# CONFIG_FIT_IMAGE_FDT_XILFPGA is not set
+CONFIG_FIXED_PHY=y
+CONFIG_FS_IOMAP=y
+CONFIG_FS_MBCACHE=y
+CONFIG_FS_POSIX_ACL=y
+CONFIG_FWNODE_MDIO=y
+CONFIG_FW_LOADER_PAGED_BUF=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_FIND_FIRST_BIT=y
+CONFIG_GENERIC_GETTIMEOFDAY=y
+CONFIG_GENERIC_IOMAP=y
+CONFIG_GENERIC_IRQ_CHIP=y
+CONFIG_GENERIC_IRQ_EFFECTIVE_AFF_MASK=y
+CONFIG_GENERIC_IRQ_MIGRATION=y
+CONFIG_GENERIC_IRQ_SHOW=y
+CONFIG_GENERIC_LIB_ASHLDI3=y
+CONFIG_GENERIC_LIB_ASHRDI3=y
+CONFIG_GENERIC_LIB_CMPDI2=y
+CONFIG_GENERIC_LIB_LSHRDI3=y
+CONFIG_GENERIC_LIB_UCMPDI2=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_IRQCHIP=y
+CONFIG_GPIO_CDEV=y
+CONFIG_HANDLE_DOMAIN_IRQ=y
+CONFIG_HARDWARE_WATCHPOINTS=y
+CONFIG_HAS_DMA=y
+CONFIG_HAS_IOMEM=y
+CONFIG_HAS_IOPORT_MAP=y
+CONFIG_HOTPLUG_CPU=y
+CONFIG_HZ_PERIODIC=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_GPIO=y
+CONFIG_LEDS_PWM=y
+# CONFIG_LEGACY_BOARD_OCELOT is not set
+# CONFIG_LEGACY_BOARD_SEAD3 is not set
+CONFIG_LIBFDT=y
+CONFIG_LOCK_DEBUGGING_SUPPORT=y
+CONFIG_LOG_BUF_SHIFT=18
+CONFIG_LZO_COMPRESS=y
+CONFIG_LZO_DECOMPRESS=y
+CONFIG_MAGIC_SYSRQ=y
+CONFIG_MAGIC_SYSRQ_DEFAULT_ENABLE=0
+CONFIG_MDIO_BUS=y
+CONFIG_MDIO_DEVICE=y
+CONFIG_MDIO_DEVRES=y
+CONFIG_MEMFD_CREATE=y
+CONFIG_MFD_SYSCON=y
+CONFIG_MICREL_PHY=y
+CONFIG_MIGRATION=y
+CONFIG_MIPS=y
+CONFIG_MIPS_ASID_BITS=8
+CONFIG_MIPS_ASID_SHIFT=0
+CONFIG_MIPS_AUTO_PFN_OFFSET=y
+CONFIG_MIPS_CLOCK_VSYSCALL=y
+CONFIG_MIPS_CM=y
+CONFIG_MIPS_CMDLINE_DTB_EXTEND=y
+# CONFIG_MIPS_CMDLINE_FROM_BOOTLOADER is not set
+CONFIG_MIPS_CPC=y
+CONFIG_MIPS_CPS=y
+# CONFIG_MIPS_CPS_CPUIDLE is not set
+# CONFIG_MIPS_CPS_NS16550_BOOL is not set
+CONFIG_MIPS_CPS_PM=y
+CONFIG_MIPS_CPU_SCACHE=y
+CONFIG_MIPS_EBPF_JIT=y
+CONFIG_MIPS_GENERIC=y
+CONFIG_MIPS_GENERIC_KERNEL=y
+CONFIG_MIPS_GIC=y
+CONFIG_MIPS_L1_CACHE_SHIFT=7
+CONFIG_MIPS_L1_CACHE_SHIFT_7=y
+CONFIG_MIPS_LD_CAN_LINK_VDSO=y
+CONFIG_MIPS_MT=y
+CONFIG_MIPS_MT_FPAFF=y
+CONFIG_MIPS_MT_SMP=y
+CONFIG_MIPS_NO_APPENDED_DTB=y
+CONFIG_MIPS_NR_CPU_NR_MAP=4
+CONFIG_MIPS_PERF_SHARED_TC_COUNTERS=y
+CONFIG_MIPS_SPRAM=y
+CONFIG_MMC=y
+CONFIG_MMC_BLOCK=y
+CONFIG_MMC_DW=y
+# CONFIG_MMC_DW_BLUEFIELD is not set
+# CONFIG_MMC_DW_EXYNOS is not set
+# CONFIG_MMC_DW_HI3798CV200 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_NAND_CORE=y
+CONFIG_MTD_NAND_ECC=y
+CONFIG_MTD_SPI_NAND=y
+CONFIG_MTD_SPI_NOR=y
+CONFIG_MTD_SPI_NOR_USE_4K_SECTORS=y
+CONFIG_MTD_UBI=y
+CONFIG_MTD_UBI_BEB_LIMIT=20
+CONFIG_MTD_UBI_BLOCK=y
+CONFIG_MTD_UBI_FASTMAP=y
+CONFIG_MTD_UBI_WL_THRESHOLD=4096
+CONFIG_NEED_DMA_MAP_STATE=y
+CONFIG_NET_FLOW_LIMIT=y
+CONFIG_NET_PTP_CLASSIFY=y
+CONFIG_NET_SELFTESTS=y
+CONFIG_NLS=y
+CONFIG_NO_EXCEPT_FILL=y
+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_KOBJ=y
+CONFIG_OF_MDIO=y
+CONFIG_PADATA=y
+CONFIG_PAGE_POOL=y
+CONFIG_PCI_DRIVERS_GENERIC=y
+CONFIG_PCS_XPCS=y
+CONFIG_PERF_USE_VMALLOC=y
+CONFIG_PGTABLE_LEVELS=2
+CONFIG_PHYLIB=y
+CONFIG_PHYLINK=y
+CONFIG_PHY_PISTACHIO_USB=y
+CONFIG_PINCTRL=y
+CONFIG_PINCTRL_PISTACHIO=y
+CONFIG_POWER_SUPPLY=y
+CONFIG_PPS=y
+CONFIG_PRINTK_TIME=y
+CONFIG_PROC_EVENTS=y
+CONFIG_PTP_1588_CLOCK=y
+CONFIG_PTP_1588_CLOCK_OPTIONAL=y
+CONFIG_PWM=y
+CONFIG_PWM_IMG=y
+CONFIG_PWM_SYSFS=y
+CONFIG_QUEUED_RWLOCKS=y
+CONFIG_QUEUED_SPINLOCKS=y
+CONFIG_RATIONAL=y
+CONFIG_REGMAP=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_COMMON=y
+CONFIG_SCSI_SPI_ATTRS=y
+CONFIG_SERIAL_8250_DW=y
+CONFIG_SERIAL_8250_DWLIB=y
+CONFIG_SERIAL_MCTRL_GPIO=y
+CONFIG_SERIAL_OF_PLATFORM=y
+CONFIG_SERIAL_SC16IS7XX=y
+CONFIG_SERIAL_SC16IS7XX_CORE=y
+# CONFIG_SERIAL_SC16IS7XX_I2C is not set
+CONFIG_SERIAL_SC16IS7XX_SPI=y
+CONFIG_SGL_ALLOC=y
+CONFIG_SG_POOL=y
+CONFIG_SMP=y
+CONFIG_SMP_UP=y
+CONFIG_SOCK_RX_QUEUE_MAPPING=y
+CONFIG_SPI=y
+CONFIG_SPI_IMG_SPFI=y
+CONFIG_SPI_MASTER=y
+CONFIG_SPI_MEM=y
+CONFIG_SRAM=y
+CONFIG_SRCU=y
+CONFIG_STMMAC_ETH=y
+CONFIG_STMMAC_PLATFORM=y
+CONFIG_SWAP_IO_SPACE=y
+CONFIG_SWPHY=y
+CONFIG_SYNC_R4K=y
+CONFIG_SYSCTL_EXCEPTION_TRACE=y
+CONFIG_SYS_HAS_CPU_MIPS32_R1=y
+CONFIG_SYS_HAS_CPU_MIPS32_R2=y
+CONFIG_SYS_HAS_CPU_MIPS32_R6=y
+CONFIG_SYS_HAS_CPU_MIPS64_R1=y
+CONFIG_SYS_HAS_CPU_MIPS64_R2=y
+CONFIG_SYS_HAS_CPU_MIPS64_R6=y
+CONFIG_SYS_SUPPORTS_32BIT_KERNEL=y
+CONFIG_SYS_SUPPORTS_64BIT_KERNEL=y
+CONFIG_SYS_SUPPORTS_ARBIT_HZ=y
+CONFIG_SYS_SUPPORTS_BIG_ENDIAN=y
+CONFIG_SYS_SUPPORTS_HIGHMEM=y
+CONFIG_SYS_SUPPORTS_HOTPLUG_CPU=y
+CONFIG_SYS_SUPPORTS_LITTLE_ENDIAN=y
+CONFIG_SYS_SUPPORTS_MICROMIPS=y
+CONFIG_SYS_SUPPORTS_MIPS16=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_SMARTMIPS=y
+CONFIG_SYS_SUPPORTS_SMP=y
+CONFIG_SYS_SUPPORTS_ZBOOT=y
+CONFIG_TARGET_ISA_REV=2
+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_UHI_BOOT=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_EHCI_HCD=y
+# CONFIG_USB_EHCI_HCD_PLATFORM is not set
+CONFIG_USB_GADGET=y
+CONFIG_USB_ROLE_SWITCH=y
+CONFIG_USB_STORAGE=y
+CONFIG_USB_SUPPORT=y
+CONFIG_USE_OF=y
+# CONFIG_VIRT_BOARD_RANCHU is not set
+CONFIG_WATCHDOG_CORE=y
+CONFIG_WEAK_ORDERING=y
+CONFIG_XPS=y
+CONFIG_XXHASH=y
+CONFIG_ZBOOT_LOAD_ADDRESS=0x0
+CONFIG_ZLIB_DEFLATE=y
+CONFIG_ZLIB_INFLATE=y
+CONFIG_ZSMALLOC=y
+# CONFIG_ZSMALLOC_STAT is not set
+CONFIG_ZSTD_COMPRESS=y
+CONFIG_ZSTD_DECOMPRESS=y
--- /dev/null
+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
+@@ -618,25 +618,33 @@ 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);
--- /dev/null
+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
+@@ -36,7 +36,8 @@
+ #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
+@@ -47,6 +48,10 @@
+ #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
+@@ -83,6 +88,7 @@
+ */
+ #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;
+@@ -99,6 +105,8 @@ struct img_spfi {
+ struct dma_chan *tx_ch;
+ bool tx_dma_busy;
+ bool rx_dma_busy;
++
++ bool complete;
+ };
+
+ static inline u32 spfi_readl(struct img_spfi *spfi, u32 reg)
+@@ -115,9 +123,11 @@ 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)
+@@ -130,12 +140,21 @@ 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();
+@@ -441,9 +460,32 @@ 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
+ */
+@@ -456,20 +498,52 @@ 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;
--- /dev/null
+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
+@@ -429,18 +429,23 @@ 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;
+@@ -492,11 +497,15 @@ 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) &&
+ /*
--- /dev/null
+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
+@@ -338,12 +338,11 @@ 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,
+@@ -362,12 +361,11 @@ 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,
--- /dev/null
+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
+@@ -79,6 +79,14 @@
+ #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
+@@ -136,6 +144,23 @@ 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);
+@@ -144,19 +169,9 @@ 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();
+ }
+
+@@ -288,6 +303,8 @@ static int img_spfi_start_pio(struct spi
+ }
+
+ ret = spfi_wait_all_done(spfi);
++ spfi_finish(spfi);
++
+ if (ret < 0)
+ return ret;
+
+@@ -303,8 +320,10 @@ 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);
+ }
+
+@@ -317,8 +336,10 @@ 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);
+ }
+
--- /dev/null
+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
+@@ -41,7 +41,7 @@ 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),
+@@ -51,6 +51,7 @@ 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
+@@ -18,6 +18,7 @@
+ /* Fixed-factor clocks */
+ #define CLK_WIFI_DIV4 16
+ #define CLK_WIFI_DIV8 17
++#define CLK_SDHOST_DIV4 18
+
+ /* Gate clocks */
+ #define CLK_MIPS 32
--- /dev/null
+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
+@@ -118,7 +118,7 @@
+
+ &sdhost {
+ status = "okay";
+- bus-width = <4>;
++ bus-width = <1>;
+ disable-wp;
+ };
+
+@@ -128,6 +128,7 @@
+
+ &pin_sdhost_data {
+ drive-strength = <2>;
++ pins = "mfio17", "mfio18", "mfio19", "mfio20";
+ };
+
+ &pwm {
--- /dev/null
+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/core.c
++++ b/drivers/mtd/spi-nor/core.c
+@@ -2964,12 +2964,20 @@ static void spi_nor_set_mtd_info(struct
+ {
+ struct mtd_info *mtd = &nor->mtd;
+ struct device *dev = nor->dev;
++ struct device_node *np = spi_nor_get_flash_node(nor);
++ const char __maybe_unused *of_mtd_name = NULL;
+
+ spi_nor_set_mtd_locking_ops(nor);
+ spi_nor_set_mtd_otp_ops(nor);
+
+ mtd->dev.parent = dev;
+ 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->type = MTD_NORFLASH;
+ mtd->flags = MTD_CAP_NORFLASH;
+--- a/drivers/mtd/mtdcore.c
++++ b/drivers/mtd/mtdcore.c
+@@ -863,6 +863,17 @@ out_error:
+ */
+ static void mtd_set_dev_defaults(struct mtd_info *mtd)
+ {
++#ifdef CONFIG_MTD_OF_PARTS
++ const char __maybe_unused *of_mtd_name = NULL;
++ struct device_node *np;
++
++ np = mtd_get_of_node(mtd);
++ if (np && !mtd->name) {
++ of_property_read_string(np, "linux,mtd-name", &of_mtd_name);
++ if (of_mtd_name)
++ mtd->name = of_mtd_name;
++ } else
++#endif
+ if (mtd->dev.parent) {
+ if (!mtd->owner && mtd->dev.parent->driver)
+ mtd->owner = mtd->dev.parent->driver->owner;
--- /dev/null
+From 0023c706f7e0f0f02bd48a63a2f3c04c839532ae Mon Sep 17 00:00:00 2001
+From: Hauke Mehrtens <hauke@hauke-m.de>
+Date: Sat, 15 Aug 2020 16:04:53 +0200
+Subject: [PATCH 901/904] MIPS: DTS: img: marduk: Add SPI NAND flash
+
+Add Gigadevice GD5F4GQ4UCYIGT SPI NAND flash to the device tree.
+
+The NAND flash chip is connected with quad SPI, but reading currently
+fails in quad SPI mode.
+
+Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
+---
+ arch/mips/boot/dts/img/pistachio_marduk.dts | 6 ++++++
+ 1 file changed, 6 insertions(+)
+
+--- a/arch/mips/boot/dts/img/pistachio_marduk.dts
++++ b/arch/mips/boot/dts/img/pistachio_marduk.dts
+@@ -89,6 +89,12 @@
+ reg = <0>;
+ spi-max-frequency = <50000000>;
+ };
++
++ flash@1 {
++ compatible = "spi-nand";
++ reg = <1>;
++ spi-max-frequency = <50000000>;
++ };
+ };
+
+ &uart0 {
--- /dev/null
+From b7700154d75e8d7c9a2022f09c2d5430137606fa Mon Sep 17 00:00:00 2001
+From: Hauke Mehrtens <hauke@hauke-m.de>
+Date: Sat, 15 Aug 2020 16:05:25 +0200
+Subject: [PATCH 902/904] MIPS: DTS: img: marduk: Add Cascoda CA8210 6LoWPAN
+
+Add Cascoda CA8210 6LoWPAN controller to device tree.
+
+Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
+---
+ arch/mips/boot/dts/img/pistachio_marduk.dts | 22 +++++++++++++++++++++
+ 1 file changed, 22 insertions(+)
+
+--- a/arch/mips/boot/dts/img/pistachio_marduk.dts
++++ b/arch/mips/boot/dts/img/pistachio_marduk.dts
+@@ -76,6 +76,28 @@
+ VDD-supply = <&internal_dac_supply>;
+ };
+
++&spfi0 {
++ status = "okay";
++ pinctrl-0 = <&spim0_pins>, <&spim0_cs0_alt_pin>, <&spim0_cs2_alt_pin>, <&spim0_cs3_alt_pin>, <&spim0_cs4_alt_pin>;
++ pinctrl-names = "default";
++
++ cs-gpios = <&gpio1 14 GPIO_ACTIVE_HIGH>, <&gpio0 2 GPIO_ACTIVE_HIGH>,
++ <&gpio1 12 GPIO_ACTIVE_HIGH>, <&gpio1 13 GPIO_ACTIVE_HIGH>;
++
++ ca8210: ca8210@0 {
++ status = "okay";
++ compatible = "cascoda,ca8210";
++ reg = <0>;
++ spi-max-frequency = <4000000>;
++ spi-cpol;
++ reset-gpio = <&gpio0 12 GPIO_ACTIVE_HIGH>;
++ irq-gpio = <&gpio2 12 GPIO_ACTIVE_HIGH>;
++ extclock-enable;
++ extclock-freq = <16000000>;
++ extclock-gpio = <2>;
++ };
++};
++
+ &spfi1 {
+ status = "okay";
+
--- /dev/null
+From ad4eba0c36ce8af6ab9ea1bc163e4c1ac7c271c3 Mon Sep 17 00:00:00 2001
+From: Hauke Mehrtens <hauke@hauke-m.de>
+Date: Sat, 15 Aug 2020 16:09:02 +0200
+Subject: [PATCH 903/904] MIPS: DTS: img: marduk: Add NXP SC16IS752IPW
+
+Add NXP SC16IS752IPW SPI-UART controller to device tree.
+
+This controller drives 2 UARTs and 7 LEDs on the board.
+
+Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
+---
+ arch/mips/boot/dts/img/pistachio_marduk.dts | 51 +++++++++++++++++++++
+ 1 file changed, 51 insertions(+)
+
+--- a/arch/mips/boot/dts/img/pistachio_marduk.dts
++++ b/arch/mips/boot/dts/img/pistachio_marduk.dts
+@@ -46,6 +46,46 @@
+ regulator-max-microvolt = <1800000>;
+ };
+
++ /* EXT clock from ca8210 is fed to sc16is752 */
++ ca8210_ext_clk: ca8210-ext-clk {
++ compatible = "fixed-clock";
++ #clock-cells = <0>;
++ clock-frequency = <16000000>;
++ clock-output-names = "ca8210_ext_clock";
++ };
++
++ gpioleds {
++ compatible = "gpio-leds";
++ user1 {
++ label = "marduk:red:user1";
++ gpios = <&sc16is752 0 GPIO_ACTIVE_LOW>;
++ };
++ user2 {
++ label = "marduk:red:user2";
++ gpios = <&sc16is752 1 GPIO_ACTIVE_LOW>;
++ };
++ user3 {
++ label = "marduk:red:user3";
++ gpios = <&sc16is752 2 GPIO_ACTIVE_LOW>;
++ };
++ user4 {
++ label = "marduk:red:user4";
++ gpios = <&sc16is752 3 GPIO_ACTIVE_LOW>;
++ };
++ user5 {
++ label = "marduk:red:user5";
++ gpios = <&sc16is752 4 GPIO_ACTIVE_LOW>;
++ };
++ user6 {
++ label = "marduk:red:user6";
++ gpios = <&sc16is752 5 GPIO_ACTIVE_LOW>;
++ };
++ user7 {
++ label = "marduk:red:user7";
++ gpios = <&sc16is752 6 GPIO_ACTIVE_LOW>;
++ };
++ };
++
+ led-controller {
+ compatible = "pwm-leds";
+
+@@ -96,6 +136,17 @@
+ extclock-freq = <16000000>;
+ extclock-gpio = <2>;
+ };
++
++ sc16is752: sc16is752@1 {
++ compatible = "nxp,sc16is752";
++ reg = <1>;
++ clocks = <&ca8210_ext_clk>;
++ spi-max-frequency = <4000000>;
++ interrupt-parent = <&gpio0>;
++ interrupts = <11 IRQ_TYPE_EDGE_FALLING>;
++ gpio-controller;
++ #gpio-cells = <2>;
++ };
+ };
+
+ &spfi1 {
--- /dev/null
+From ff0e950b605047bf50d470023e0fb2fc2003a0f0 Mon Sep 17 00:00:00 2001
+From: Ian Pozella <Ian.Pozella@imgtec.com>
+Date: Mon, 20 Feb 2017 10:38:07 +0000
+Subject: [PATCH 904/904] MIPS: DTS: img: marduk: Add partition name
+
+Signed-off-by: Ian Pozella <Ian.Pozella@imgtec.com>
+---
+ arch/mips/boot/dts/img/pistachio_marduk.dts | 2 ++
+ 1 file changed, 2 insertions(+)
+
+--- a/arch/mips/boot/dts/img/pistachio_marduk.dts
++++ b/arch/mips/boot/dts/img/pistachio_marduk.dts
+@@ -161,12 +161,14 @@
+ compatible = "spansion,s25fl016k", "jedec,spi-nor";
+ reg = <0>;
+ spi-max-frequency = <50000000>;
++ linux,mtd-name = "spi-nor";
+ };
+
+ flash@1 {
+ compatible = "spi-nand";
+ reg = <1>;
+ spi-max-frequency = <50000000>;
++ linux,mtd-name = "spi-nand";
+ };
+ };
+
--- /dev/null
+--- a/arch/mips/boot/dts/img/pistachio_marduk.dts
++++ b/arch/mips/boot/dts/img/pistachio_marduk.dts
+@@ -19,6 +19,11 @@
+ ethernet0 = &enet;
+ spi0 = &spfi0;
+ spi1 = &spfi1;
++
++ led-boot = &led_heartbeat;
++ led-failsafe = &led_heartbeat;
++ led-running = &led_heartbeat;
++ led-upgrade = &led_heartbeat;
+ };
+
+ chosen {
+@@ -89,11 +94,10 @@
+ led-controller {
+ compatible = "pwm-leds";
+
+- led-1 {
++ led_heartbeat: heartbeat {
+ label = "marduk:red:heartbeat";
+ pwms = <&pwm 3 300000>;
+ max-brightness = <255>;
+- linux,default-trigger = "heartbeat";
+ };
+ };
+
projects / openwrt / staging / blocktrron.git / commitdiff