ARM: shmobile: Lager:add SPI FLASH support on QSPI (24cf82f4) · Commits · 戴 / test

arch/arm/mach-shmobile/board-lager.c

+64 −0

Original line number	Diff line number	Diff line
		@@ -39,6 +39,11 @@
		#include <mach/r8a7790.h>
		#include <asm/mach-types.h>
		#include <asm/mach/arch.h>
		#include <linux/mtd/partitions.h>
		#include <linux/mtd/mtd.h>
		#include <linux/spi/flash.h>
		#include <linux/spi/rspi.h>
		#include <linux/spi/spi.h>

		/* DU */
		static struct rcar_du_encoder_data lager_du_encoders[] = {
		@@ -166,6 +171,59 @@ static const struct resource ether_resources[] __initconst = {
		DEFINE_RES_IRQ(gic_spi(162)),
		};

		/* SPI Flash memory (Spansion S25FL512SAGMFIG11 64Mb) */
		static struct mtd_partition spi_flash_part[] = {
		/* Reserved for user loader program, read-only */
		{
		.name = "loader",
		.offset = 0,
		.size = SZ_256K,
		.mask_flags = MTD_WRITEABLE,
		},
		/* Reserved for user program, read-only */
		{
		.name = "user",
		.offset = MTDPART_OFS_APPEND,
		.size = SZ_4M,
		.mask_flags = MTD_WRITEABLE,
		},
		/* All else is writable (e.g. JFFS2) */
		{
		.name = "flash",
		.offset = MTDPART_OFS_APPEND,
		.size = MTDPART_SIZ_FULL,
		.mask_flags = 0,
		},
		};

		static 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 rspi_plat_data qspi_pdata __initconst = {
		.num_chipselect = 1,
		};

		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,
		},
		};

		/* QSPI resource */
		static const struct resource qspi_resources[] __initconst = {
		DEFINE_RES_MEM(0xe6b10000, 0x1000),
		DEFINE_RES_IRQ(gic_spi(184)),
		};

		static const struct pinctrl_map lager_pinctrl_map[] = {
		/* DU (CN10: ARGB0, CN13: LVDS) */
		PIN_MAP_MUX_GROUP_DEFAULT("rcar-du-r8a7790", "pfc-r8a7790",
		@@ -223,6 +281,12 @@ static void __init lager_add_standard_devices(void)
		&ether_pdata, sizeof(ether_pdata));

		lager_add_du_device();

		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));
		}

		/*

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