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davinci: add spi devices support for da830/omap-l137/am17x evm 

This patch adds the on-board SPI flash device to the
DA830/OMAP-L137/AM17x 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 da830evm_spi0_pdata to devices-da8xx.c]
[michael.williamson@criticallink.com: moved da830evm_init_spi0 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 10:53:27 +05:30 committed by Kevin Hilman
parent fdce556806
commit 16a3c8320a
1 changed files with 67 additions and 0 deletions
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67
arch/arm/mach-davinci/board-da830-evm.c
View File

@ -20,6 +20,8 @@
#include <linux/i2c/at24.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/partitions.h>
#include <linux/spi/spi.h>
#include <linux/spi/flash.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
@ -30,6 +32,7 @@
#include <mach/da8xx.h>
#include <mach/usb.h>
#include <mach/aemif.h>
#include <mach/spi.h>
#define DA830_EVM_PHY_ID ""
/*
@ -534,6 +537,64 @@ static struct edma_rsv_info da830_edma_rsv[] = {
},
};
static struct mtd_partition da830evm_spiflash_part[] = {
[0] = {
.name = "DSP-UBL",
.offset = 0,
.size = SZ_8K,
.mask_flags = MTD_WRITEABLE,
},
[1] = {
.name = "ARM-UBL",
.offset = MTDPART_OFS_APPEND,
.size = SZ_16K + SZ_8K,
.mask_flags = MTD_WRITEABLE,
},
[2] = {
.name = "U-Boot",
.offset = MTDPART_OFS_APPEND,
.size = SZ_256K - SZ_32K,
.mask_flags = MTD_WRITEABLE,
},
[3] = {
.name = "U-Boot-Environment",
.offset = MTDPART_OFS_APPEND,
.size = SZ_16K,
.mask_flags = 0,
},
[4] = {
.name = "Kernel",
.offset = MTDPART_OFS_APPEND,
.size = MTDPART_SIZ_FULL,
.mask_flags = 0,
},
};
static struct flash_platform_data da830evm_spiflash_data = {
.name = "m25p80",
.parts = da830evm_spiflash_part,
.nr_parts = ARRAY_SIZE(da830evm_spiflash_part),
.type = "w25x32",
};
static struct davinci_spi_config da830evm_spiflash_cfg = {
.io_type = SPI_IO_TYPE_DMA,
.c2tdelay = 8,
.t2cdelay = 8,
};
static struct spi_board_info da830evm_spi_info[] = {
{
.modalias = "m25p80",
.platform_data = &da830evm_spiflash_data,
.controller_data = &da830evm_spiflash_cfg,
.mode = SPI_MODE_0,
.max_speed_hz = 30000000,
.bus_num = 0,
.chip_select = 0,
},
};
static __init void da830_evm_init(void)
{
struct davinci_soc_info *soc_info = &davinci_soc_info;
@ -590,6 +651,12 @@ static __init void da830_evm_init(void)
ret = da8xx_register_rtc();
if (ret)
pr_warning("da830_evm_init: rtc setup failed: %d\n", ret);
ret = da8xx_register_spi(0, da830evm_spi_info,
ARRAY_SIZE(da830evm_spi_info));
if (ret)
pr_warning("da830_evm_init: spi 0 registration failed: %d\n",
ret);
}
#ifdef CONFIG_SERIAL_8250_CONSOLE