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davinci: add spi devices support for da850/omap-l138/am18x evm 

This patch adds the on-board SPI flash device to the
DA850/OMAP-L138/AM18x EVM. It also registers the SPI flash
device to the MTD subsystem.

Based on SPI flash device support for MityDSP-L138F platform.

Signed-off-by: Sekhar Nori <nsekhar@ti.com>
[michael.williamson@criticallink.com: moved da850_evm_spi1_pdata to devices-da8xx.c]
[michael.williamson@criticallink.com: moved da850evm_init_spi1 to devices-da8xx.c]
Signed-off-by: Michael Williamson <michael.williamson@criticallink.com>
Signed-off-by: Kevin Hilman <khilman@ti.com>
This commit is contained in:
Sekhar Nori 2011-02-24 10:39:27 +05:30 committed by Kevin Hilman
parent dd561c6a77
commit fdce556806
1 changed files with 73 additions and 0 deletions
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73
arch/arm/mach-davinci/board-da850-evm.c
View File

@ -29,6 +29,8 @@
#include <linux/regulator/machine.h>
#include <linux/regulator/tps6507x.h>
#include <linux/input/tps6507x-ts.h>
#include <linux/spi/spi.h>
#include <linux/spi/flash.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
@ -38,6 +40,7 @@
#include <mach/nand.h>
#include <mach/mux.h>
#include <mach/aemif.h>
#include <mach/spi.h>
#define DA850_EVM_PHY_ID "0:00"
#define DA850_LCD_PWR_PIN GPIO_TO_PIN(2, 8)
@ -48,6 +51,70 @@
#define DA850_MII_MDIO_CLKEN_PIN GPIO_TO_PIN(2, 6)
static struct mtd_partition da850evm_spiflash_part[] = {
[0] = {
.name = "UBL",
.offset = 0,
.size = SZ_64K,
.mask_flags = MTD_WRITEABLE,
},
[1] = {
.name = "U-Boot",
.offset = MTDPART_OFS_APPEND,
.size = SZ_512K,
.mask_flags = MTD_WRITEABLE,
},
[2] = {
.name = "U-Boot-Env",
.offset = MTDPART_OFS_APPEND,
.size = SZ_64K,
.mask_flags = MTD_WRITEABLE,
},
[3] = {
.name = "Kernel",
.offset = MTDPART_OFS_APPEND,
.size = SZ_2M + SZ_512K,
.mask_flags = 0,
},
[4] = {
.name = "Filesystem",
.offset = MTDPART_OFS_APPEND,
.size = SZ_4M,
.mask_flags = 0,
},
[5] = {
.name = "MAC-Address",
.offset = SZ_8M - SZ_64K,
.size = SZ_64K,
.mask_flags = MTD_WRITEABLE,
},
};
static struct flash_platform_data da850evm_spiflash_data = {
.name = "m25p80",
.parts = da850evm_spiflash_part,
.nr_parts = ARRAY_SIZE(da850evm_spiflash_part),
.type = "m25p64",
};
static struct davinci_spi_config da850evm_spiflash_cfg = {
.io_type = SPI_IO_TYPE_DMA,
.c2tdelay = 8,
.t2cdelay = 8,
};
static struct spi_board_info da850evm_spi_info[] = {
{
.modalias = "m25p80",
.platform_data = &da850evm_spiflash_data,
.controller_data = &da850evm_spiflash_cfg,
.mode = SPI_MODE_0,
.max_speed_hz = 30000000,
.bus_num = 1,
.chip_select = 0,
},
};
static struct mtd_partition da850_evm_norflash_partition[] = {
{
.name = "bootloaders + env",
@ -1167,6 +1234,12 @@ static __init void da850_evm_init(void)
if (ret)
pr_warning("da850_evm_init: suspend registration failed: %d\n",
ret);
ret = da8xx_register_spi(1, da850evm_spi_info,
ARRAY_SIZE(da850evm_spi_info));
if (ret)
pr_warning("da850_evm_init: spi 1 registration failed: %d\n",
ret);
}
#ifdef CONFIG_SERIAL_8250_CONSOLE