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ARM: shmobile: koelsch legacy: Add QSPI support

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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+renesas@linux-m68k.org>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
This commit is contained in:
Geert Uytterhoeven 2014-02-04 16:24:01 +01:00 committed by Simon Horman
parent 664517474c
commit bcca4e8e5b
1 changed files with 64 additions and 0 deletions
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64
arch/arm/mach-shmobile/board-koelsch.c
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@ -26,12 +26,17 @@
#include <linux/irq.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>
@ -150,6 +155,55 @@ 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),
@ -214,6 +268,11 @@ 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"),
@ -248,6 +307,11 @@ 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();