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authorSekhar Nori <nsekhar@ti.com>2011-02-24 10:53:27 +0530
committerKevin Hilman <khilman@ti.com>2011-03-11 10:48:29 -0800
commit16a3c8320a19467e26f7194dc2e21c63635ee157 (patch)
treeda2778eba05a17fd8a751b3fe8307c35901e5908 /arch/arm/mach-davinci
parentfdce5568066e1173c9323f021c7ade6859b8234d (diff)
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>
Diffstat (limited to 'arch/arm/mach-davinci')
-rw-r--r--arch/arm/mach-davinci/board-da830-evm.c67
1 files changed, 67 insertions, 0 deletions
diff --git a/arch/arm/mach-davinci/board-da830-evm.c b/arch/arm/mach-davinci/board-da830-evm.c
index b52a3a1abd9..8bc3701aa05 100644
--- a/arch/arm/mach-davinci/board-da830-evm.c
+++ b/arch/arm/mach-davinci/board-da830-evm.c
@@ -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