[PATCH 2/4] at91sam9x5ek: add spi support
Jean-Christophe PLAGNIOL-VILLARD
plagnioj at jcrosoft.com
Thu Nov 1 17:16:54 EDT 2012
on all the cpu module we have a at25 except on the cogent where we have a at45
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj at jcrosoft.com>
---
arch/arm/boards/at91sam9x5ek/init.c | 37 +++++++++++++++++++++++++++++++
arch/arm/configs/at91sam9x5ek_defconfig | 5 ++++-
2 files changed, 41 insertions(+), 1 deletion(-)
diff --git a/arch/arm/boards/at91sam9x5ek/init.c b/arch/arm/boards/at91sam9x5ek/init.c
index 48eebac..afb50e8 100644
--- a/arch/arm/boards/at91sam9x5ek/init.c
+++ b/arch/arm/boards/at91sam9x5ek/init.c
@@ -41,6 +41,7 @@
#include <readkey.h>
#include <linux/w1-gpio.h>
#include <w1_mac_address.h>
+#include <spi/spi.h>
#include "hw_version.h"
@@ -125,6 +126,41 @@ static void ek_add_device_i2c(void)
at91_add_device_i2c(0, i2c_devices, ARRAY_SIZE(i2c_devices));
}
+static const struct spi_board_info ek_cm_cogent_spi_devices[] = {
+ {
+ .name = "mtd_dataflash",
+ .chip_select = 0,
+ .max_speed_hz = 15 * 1000 * 1000,
+ .bus_num = 0,
+ }
+};
+
+static const struct spi_board_info ek_spi_devices[] = {
+ {
+ .name = "m25p80",
+ .chip_select = 0,
+ .max_speed_hz = 30 * 1000 * 1000,
+ .bus_num = 0,
+ }
+};
+
+static unsigned spi0_standard_cs[] = { AT91_PIN_PA14};
+static struct at91_spi_platform_data spi_pdata = {
+ .chipselect = spi0_standard_cs,
+ .num_chipselect = ARRAY_SIZE(spi0_standard_cs),
+};
+
+static void ek_add_device_spi(void)
+{
+ if (at91sam9x5ek_cm_is_vendor(VENDOR_COGENT))
+ spi_register_board_info(ek_cm_cogent_spi_devices,
+ ARRAY_SIZE(ek_cm_cogent_spi_devices));
+ else
+ spi_register_board_info(ek_spi_devices,
+ ARRAY_SIZE(ek_spi_devices));
+ at91_add_device_spi(0, &spi_pdata);
+}
+
/*
* USB Host port
*/
@@ -181,6 +217,7 @@ static int at91sam9x5ek_devices_init(void)
ek_add_device_w1();
ek_add_device_nand();
ek_add_device_eth();
+ ek_add_device_spi();
at91_add_device_usbh_ohci(&ek_usbh_data);
ek_add_led();
ek_add_device_i2c();
diff --git a/arch/arm/configs/at91sam9x5ek_defconfig b/arch/arm/configs/at91sam9x5ek_defconfig
index c71fe0d..5611b95 100644
--- a/arch/arm/configs/at91sam9x5ek_defconfig
+++ b/arch/arm/configs/at91sam9x5ek_defconfig
@@ -52,10 +52,13 @@ CONFIG_CMD_TFTP=y
CONFIG_FS_TFTP=y
CONFIG_NET_NETCONSOLE=y
CONFIG_DRIVER_NET_MACB=y
-# CONFIG_SPI is not set
+CONFIG_DRIVER_SPI_ATMEL=y
+CONFIG_MTD_M25P80=y
CONFIG_I2C=y
CONFIG_I2C_GPIO=y
CONFIG_MTD=y
+# CONFIG_MTD_OOB_DEVICE is not set
+CONFIG_MTD_DATAFLASH=y
CONFIG_NAND=y
# CONFIG_NAND_ECC_HW is not set
# CONFIG_NAND_ECC_HW_SYNDROME is not set
--
1.7.10.4
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