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>
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 @@
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 @@
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)