flm01/mote/v2/openwrt/patches/400-spi_gpio_support.patch

--- a/arch/mips/ar231x/ar2315.c	2010-08-07 10:15:11.696355750 +0200
+++ b/arch/mips/ar231x/ar2315.c	2010-08-07 10:33:47.588393782 +0200
@@ -36,6 +36,11 @@
 #include "devices.h"
 #include "ar2315.h"
 
+/* BVDM 04/06/2010 */
+#include <linux/spi/spi.h>
+#include <linux/spi/spidev.h>
+#include <linux/spi/spi_gpio.h>
+
 static u32 gpiointmask = 0, gpiointval = 0;
 
 static inline void ar2315_gpio_irq(void)
@@ -398,6 +403,37 @@
 	.name = "ar2315_wdt",
 };
 
+/* BVDM 04/06/2010 */
+#define SPI_GPIO_SCK  3
+#define SPI_GPIO_MOSI 1
+#define SPI_GPIO_MISO 2
+
+static struct spi_gpio_platform_data ar2315_spi_gpio_platform_data = {
+	.sck  = SPI_GPIO_SCK,
+	.mosi = SPI_GPIO_MOSI,
+	.miso = SPI_GPIO_MISO,
+	.num_chipselect = 1,
+};
+
+static struct platform_device ar2315_spi_gpio = {
+	.name = "spi_gpio",
+	.id   = 0,
+	.dev  = {
+		.platform_data = &ar2315_spi_gpio_platform_data,
+	},
+};
+
+static struct spi_board_info ar2315_spi_gpio_board_info[] __initdata = {
+{
+	.modalias        = "spidev",
+	.controller_data = (void *) SPI_GPIO_NO_CHIPSELECT,
+	.mode            = SPI_MODE_0,
+	.max_speed_hz    = 1000000,   /* 1Mhz max, but the bitbanged spi doesn't clock faster than 572kHz */
+	.bus_num         = 0,
+},
+};
+
+
 #define SPI_FLASH_CTL      0x00
 #define SPI_FLASH_OPCODE   0x04
 #define SPI_FLASH_DATA     0x08
@@ -520,6 +556,7 @@
 	}
 	ar2315_led_data.num_leds = led;
 	platform_device_register(&ar2315_gpio_leds);
+	platform_device_register(&ar2315_spi_gpio);
 }
 #else
 static inline void ar2315_init_gpio(void)
@@ -530,6 +567,8 @@
 int __init
 ar2315_init_devices(void)
 {
+	int ret;
+
 	if (!is_2315())
 		return 0;
 
@@ -544,6 +583,12 @@
 		&ar2315_eth_data);
 	ar231x_add_wmac(0, AR2315_WLAN0, AR2315_IRQ_WLAN0_INTRS);
 
+	/* BVDM 04/06/2010 */
+	platform_device_register(&ar2315_spi_gpio);
+	ret = spi_register_board_info(ar2315_spi_gpio_board_info, ARRAY_SIZE(ar2315_spi_gpio_board_info));
+	/* debugging */
+	printk(KERN_DEBUG "spi_register_board_info return value: %x\n", ret); 
+
 	return 0;
 }