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authorSandeep Paulraj <s-paulraj@ti.com>2010-02-01 09:51:45 -0500
committerKevin Hilman <khilman@deeprootsystems.com>2010-03-01 10:20:24 -0800
commit5f19daa16ffca55db5b0253eba2bd0f71ee7f7f4 (patch)
treebc1c899b166e57b132af35a3cf94be5c511ef70c
parenta3e13e89d6658042fdfd50a7bf7564e81e6ce689 (diff)
downloadop-kernel-dev-5f19daa16ffca55db5b0253eba2bd0f71ee7f7f4.zip
op-kernel-dev-5f19daa16ffca55db5b0253eba2bd0f71ee7f7f4.tar.gz
DaVinci DM365: Adding support for SPI EEPROM
The DM365 Spectrum Digital EVM comes with an EEPROM connected to SPI0. This patch adds support for the SPI EEPROM. Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com> Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
-rw-r--r--arch/arm/mach-davinci/board-dm365-evm.c23
1 files changed, 23 insertions, 0 deletions
diff --git a/arch/arm/mach-davinci/board-dm365-evm.c b/arch/arm/mach-davinci/board-dm365-evm.c
index 38e9033..d15bece 100644
--- a/arch/arm/mach-davinci/board-dm365-evm.c
+++ b/arch/arm/mach-davinci/board-dm365-evm.c
@@ -24,6 +24,8 @@
#include <linux/mtd/partitions.h>
#include <linux/mtd/nand.h>
#include <linux/input.h>
+#include <linux/spi/spi.h>
+#include <linux/spi/eeprom.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
@@ -571,6 +573,24 @@ static void __init dm365_evm_map_io(void)
dm365_init();
}
+static struct spi_eeprom at25640 = {
+ .byte_len = SZ_64K / 8,
+ .name = "at25640",
+ .page_size = 32,
+ .flags = EE_ADDR2,
+};
+
+static struct spi_board_info dm365_evm_spi_info[] __initconst = {
+ {
+ .modalias = "at25",
+ .platform_data = &at25640,
+ .max_speed_hz = 10 * 1000 * 1000,
+ .bus_num = 0,
+ .chip_select = 0,
+ .mode = SPI_MODE_0,
+ },
+};
+
static __init void dm365_evm_init(void)
{
evm_init_i2c();
@@ -587,6 +607,9 @@ static __init void dm365_evm_init(void)
dm365_init_asp(&dm365_evm_snd_data);
dm365_init_rtc();
dm365_init_ks(&dm365evm_ks_data);
+
+ dm365_init_spi0(BIT(0), dm365_evm_spi_info,
+ ARRAY_SIZE(dm365_evm_spi_info));
}
static __init void dm365_evm_irq_init(void)
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