From: Geert Uytterhoeven <geert+rene...@linux-m68k.org> Enable support for the Spansion s25fl512s SPI FLASH on the Koelsch board: - Add QSPI platform device, resources, platform data, and pinmux, - Add FLASH data and MTD partitions.
Signed-off-by: Geert Uytterhoeven <geert+rene...@linux-m68k.org> Acked-by: Laurent Pinchart <laurent.pinch...@ideasonboard.com> --- v3: - Switch to named IRQs v2: - Split in 2 groups (qspi_ctrl/qspi_data4) arch/arm/mach-shmobile/board-koelsch.c | 64 ++++++++++++++++++++++++++++++++ 1 file changed, 64 insertions(+) diff --git a/arch/arm/mach-shmobile/board-koelsch.c b/arch/arm/mach-shmobile/board-koelsch.c index 2ab5c75ba2c2..56020d9fa841 100644 --- a/arch/arm/mach-shmobile/board-koelsch.c +++ b/arch/arm/mach-shmobile/board-koelsch.c @@ -25,12 +25,17 @@ #include <linux/input.h> #include <linux/kernel.h> #include <linux/leds.h> +#include <linux/mtd/mtd.h> +#include <linux/mtd/partitions.h> #include <linux/phy.h> #include <linux/pinctrl/machine.h> #include <linux/platform_data/gpio-rcar.h> #include <linux/platform_data/rcar-du.h> #include <linux/platform_device.h> #include <linux/sh_eth.h> +#include <linux/spi/flash.h> +#include <linux/spi/rspi.h> +#include <linux/spi/spi.h> #include <mach/common.h> #include <mach/irqs.h> #include <mach/r8a7791.h> @@ -148,6 +153,55 @@ static const struct gpio_keys_platform_data koelsch_keys_pdata __initconst = { .nbuttons = ARRAY_SIZE(gpio_buttons), }; +/* QSPI */ +static const struct resource qspi_resources[] __initconst = { + DEFINE_RES_MEM(0xe6b10000, 0x1000), + DEFINE_RES_IRQ_NAMED(gic_spi(184), "mux"), +}; + +static const struct rspi_plat_data qspi_pdata __initconst = { + .num_chipselect = 1, +}; + +/* SPI Flash memory (Spansion S25FL512SAGMFIG11 64 MiB) */ +static struct mtd_partition spi_flash_part[] = { + { + .name = "loader", + .offset = 0x00000000, + .size = 512 * 1024, + .mask_flags = MTD_WRITEABLE, + }, + { + .name = "bootenv", + .offset = MTDPART_OFS_APPEND, + .size = 512 * 1024, + .mask_flags = MTD_WRITEABLE, + }, + { + .name = "data", + .offset = MTDPART_OFS_APPEND, + .size = MTDPART_SIZ_FULL, + }, +}; + +static const struct flash_platform_data spi_flash_data = { + .name = "m25p80", + .parts = spi_flash_part, + .nr_parts = ARRAY_SIZE(spi_flash_part), + .type = "s25fl512s", +}; + +static const struct spi_board_info spi_info[] __initconst = { + { + .modalias = "m25p80", + .platform_data = &spi_flash_data, + .mode = SPI_MODE_0, + .max_speed_hz = 30000000, + .bus_num = 0, + .chip_select = 0, + }, +}; + /* SATA0 */ static const struct resource sata0_resources[] __initconst = { DEFINE_RES_MEM(0xee300000, 0x2000), @@ -180,6 +234,11 @@ static const struct pinctrl_map koelsch_pinctrl_map[] = { "eth_rmii", "eth"), PIN_MAP_MUX_GROUP_DEFAULT("r8a7791-ether", "pfc-r8a7791", "intc_irq0", "intc"), + /* QSPI */ + PIN_MAP_MUX_GROUP_DEFAULT("qspi.0", "pfc-r8a7791", + "qspi_ctrl", "qspi"), + PIN_MAP_MUX_GROUP_DEFAULT("qspi.0", "pfc-r8a7791", + "qspi_data4", "qspi"), /* SCIF0 (CN19: DEBUG SERIAL0) */ PIN_MAP_MUX_GROUP_DEFAULT("sh-sci.6", "pfc-r8a7791", "scif0_data_d", "scif0"), @@ -205,6 +264,11 @@ static void __init koelsch_add_standard_devices(void) platform_device_register_data(&platform_bus, "gpio-keys", -1, &koelsch_keys_pdata, sizeof(koelsch_keys_pdata)); + platform_device_register_resndata(&platform_bus, "qspi", 0, + qspi_resources, + ARRAY_SIZE(qspi_resources), + &qspi_pdata, sizeof(qspi_pdata)); + spi_register_board_info(spi_info, ARRAY_SIZE(spi_info)); koelsch_add_du_device(); -- 1.7.9.5 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/