sh: ap325rxa MMC support using spi_gpio and mmc_spi
Magnus Damm [Wed, 7 Jan 2009 11:35:21 +0000 (20:35 +0900)]
This patch adds CN3 MMC support for ap325rxa using the mmc_spi
driver on top of the bitbanging spi_gpio driver.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

arch/sh/boards/board-ap325rxa.c

index 25a3306..caf4c33 100644 (file)
@@ -20,6 +20,8 @@
 #include <linux/i2c.h>
 #include <linux/smsc911x.h>
 #include <linux/gpio.h>
+#include <linux/spi/spi.h>
+#include <linux/spi/spi_gpio.h>
 #include <media/soc_camera_platform.h>
 #include <media/sh_mobile_ceu.h>
 #include <video/sh_mobile_lcdc.h>
@@ -317,6 +319,20 @@ static struct platform_device ceu_device = {
        },
 };
 
+struct spi_gpio_platform_data sdcard_cn3_platform_data = {
+       .sck = GPIO_PTD0,
+       .mosi = GPIO_PTD1,
+       .miso = GPIO_PTD2,
+       .num_chipselect = 1,
+};
+
+static struct platform_device sdcard_cn3_device = {
+       .name           = "spi_gpio",
+       .dev    = {
+               .platform_data  = &sdcard_cn3_platform_data,
+       },
+};
+
 static struct platform_device *ap325rxa_devices[] __initdata = {
        &smsc9118_device,
        &ap325rxa_nor_flash_device,
@@ -326,6 +342,7 @@ static struct platform_device *ap325rxa_devices[] __initdata = {
        &camera_device,
 #endif
        &nand_flash_device,
+       &sdcard_cn3_device,
 };
 
 static struct i2c_board_info __initdata ap325rxa_i2c_devices[] = {
@@ -334,6 +351,15 @@ static struct i2c_board_info __initdata ap325rxa_i2c_devices[] = {
        },
 };
 
+static struct spi_board_info ap325rxa_spi_devices[] = {
+       {
+               .modalias = "mmc_spi",
+               .max_speed_hz = 5000000,
+               .chip_select = 0,
+               .controller_data = (void *) GPIO_PTD5,
+       },
+};
+
 static int __init ap325rxa_devices_setup(void)
 {
        /* LD3 and LD4 LEDs */
@@ -431,6 +457,9 @@ static int __init ap325rxa_devices_setup(void)
        i2c_register_board_info(0, ap325rxa_i2c_devices,
                                ARRAY_SIZE(ap325rxa_i2c_devices));
 
+       spi_register_board_info(ap325rxa_spi_devices,
+                               ARRAY_SIZE(ap325rxa_spi_devices));
+
        return platform_add_devices(ap325rxa_devices,
                                ARRAY_SIZE(ap325rxa_devices));
 }