From 22af9d23090d1bbd82a18d9acfd92454c544e7ea Mon Sep 17 00:00:00 2001
From: Grigori Goronzy <greg@blackbox>
Date: Wed, 20 Jun 2012 02:41:02 +0200
Subject: [PATCH] bcm2708: secondary MMC interface with spi-gpio/mmc-spi

---
 arch/arm/mach-bcm2708/bcm2708.c |   33 +++++++++++++++++++++++++++++++++
 1 file changed, 33 insertions(+)
diff --git a/arch/arm/mach-bcm2708/bcm2708.c b/arch/arm/mach-bcm2708/bcm2708.c
index fa02a1a..ec9412e 100644
--- a/arch/arm/mach-bcm2708/bcm2708.c
+++ b/arch/arm/mach-bcm2708/bcm2708.c
@@ -31,6 +31,10 @@
 #include <linux/cnt32_to_63.h>
 #include <linux/io.h>
 #include <linux/module.h>
+#include <linux/spi/spi.h>
+#include <linux/spi/spi_gpio.h>
+#include <linux/spi/spi_bitbang.h>
+#include <linux/gpio.h>

 #include <linux/version.h>
 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,38)
@@ -460,6 +464,32 @@ static struct platform_device bcm2708_alsa_devices[] = {
           },
 };

+static struct spi_gpio_platform_data spi_gpio_data = {
+   .sck = 11,
+   .mosi = 10,
+   .miso = 9,
+
+   .num_chipselect = 2,
+};
+
+static struct platform_device bcm2708_spi_gpio = {
+   .name      = "spi_gpio",
+   .id      = 0,
+   .dev      = {
+       .platform_data   = &spi_gpio_data,
+   },
+
+};
+
+static struct spi_board_info gpio_spi_devices[] = {
+   {
+       .modalias = "mmc_spi",
+       .max_speed_hz = 1000000,
+       .chip_select = 0,
+       .controller_data = (void *) 8,
+   },
+};
+
 int __init bcm_register_device(struct platform_device *pdev)
 {
    int ret;
@@ -495,6 +525,9 @@ void __init bcm2708_init(void)
 #ifdef CONFIG_MMC_SDHCI_BCM2708
    bcm_register_device(&bcm2708_emmc_device);
 #endif
+   bcm_register_device(&bcm2708_spi_gpio);
+   spi_register_board_info(gpio_spi_devices,
+           ARRAY_SIZE(gpio_spi_devices));
    bcm2708_init_led();
    for (i = 0; i < ARRAY_SIZE(bcm2708_alsa_devices); i++)
        bcm_register_device(&bcm2708_alsa_devices[i]);
--
1.7.10