From c886d2690dae0258d64fef02d8a24c901f7c2d6b Mon Sep 17 00:00:00 2001
From: kaloz <kaloz@3c298f89-4303-0410-b956-a3cf2f4a3e73>
Date: Sun, 27 Apr 2008 16:56:19 +0000
Subject: incomplete Gumstix support

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@10955 3c298f89-4303-0410-b956-a3cf2f4a3e73
---
 .../pxa/patches-2.6.21/031-mmc-card-detect.patch   | 80 ++++++++++++++++++++++
 1 file changed, 80 insertions(+)
 create mode 100644 target/linux/pxa/patches-2.6.21/031-mmc-card-detect.patch

(limited to 'target/linux/pxa/patches-2.6.21/031-mmc-card-detect.patch')

diff --git a/target/linux/pxa/patches-2.6.21/031-mmc-card-detect.patch b/target/linux/pxa/patches-2.6.21/031-mmc-card-detect.patch
new file mode 100644
index 000000000..26dd970e3
--- /dev/null
+++ b/target/linux/pxa/patches-2.6.21/031-mmc-card-detect.patch
@@ -0,0 +1,80 @@
+Index: linux-2.6.21gum/arch/arm/mach-pxa/gumstix.c
+===================================================================
+--- linux-2.6.21gum.orig/arch/arm/mach-pxa/gumstix.c
++++ linux-2.6.21gum/arch/arm/mach-pxa/gumstix.c
+@@ -29,19 +29,55 @@
+ 
+ #include "generic.h"
+ 
+-static int gumstix_mci_init(struct device *dev, irqreturn_t (*lubbock_detect_int)(int, void *, struct pt_regs *), void *data)
++static struct pxamci_platform_data gumstix_mci_platform_data;
++
++static int gumstix_mci_init(struct device *dev, irqreturn_t (*gumstix_detect_int)(int, void *, struct pt_regs *), void *data)
+ {
+-	// Set up MMC controller
++	int err;
++
+ 	pxa_gpio_mode(GPIO6_MMCCLK_MD);
+ 	pxa_gpio_mode(GPIO53_MMCCLK_MD);
+ 	pxa_gpio_mode(GPIO8_MMCCS0_MD);
+ 
++	pxa_gpio_mode(GUMSTIX_GPIO_nSD_DETECT | GPIO_IN);
++	set_irq_type(GUMSTIX_IRQ_GPIO_nSD_DETECT, IRQT_BOTHEDGE);
++	pxa_gpio_mode(GUMSTIX_GPIO_nSD_WP | GPIO_IN);
++
++	gumstix_mci_platform_data.detect_delay = msecs_to_jiffies(250);
++
++	err = request_irq(GUMSTIX_IRQ_GPIO_nSD_DETECT, gumstix_detect_int, SA_INTERRUPT,
++			     "MMC card detect", data);
++	if (err) {
++		printk(KERN_ERR "gumstix_mci_init: MMC/SD: can't request MMC card detect IRQ\n");
++		return -1;
++	}
++
++	err = set_irq_type(GUMSTIX_IRQ_GPIO_nSD_DETECT, IRQT_BOTHEDGE);
++
+ 	return 0;
+ }
+ 
++static int gumstix_mci_get_ro(struct device *dev)
++{
++#ifdef CONFIG_ARCH_GUMSTIX_VERDEX
++	return 0;	// microSD is always writable on verdex
++#else
++	int ro;
++	ro = GPLR(GUMSTIX_GPIO_nSD_WP) & GPIO_bit(GUMSTIX_GPIO_nSD_WP);
++	return ro;
++#endif
++}
++
++static void gumstix_mci_exit(struct device *dev, void *data)
++{
++	free_irq(GUMSTIX_IRQ_GPIO_nSD_DETECT, data);
++}
++
+ static struct pxamci_platform_data gumstix_mci_platform_data = {
+ 	.ocr_mask	= MMC_VDD_32_33|MMC_VDD_33_34,
+-	.init		= &gumstix_mci_init,
++	.init		= gumstix_mci_init,
++	.get_ro		= gumstix_mci_get_ro,
++	.exit		= gumstix_mci_exit,
+ };
+ 
+ static struct pxa2xx_udc_mach_info gumstix_udc_info __initdata = {
+Index: linux-2.6.21gum/include/asm-arm/arch-pxa/gumstix.h
+===================================================================
+--- linux-2.6.21gum.orig/include/asm-arm/arch-pxa/gumstix.h
++++ linux-2.6.21gum/include/asm-arm/arch-pxa/gumstix.h
+@@ -36,6 +36,12 @@
+ #define GPIO_GUMSTIX_USB_GPIOx_CON_MD	(GPIO_GUMSTIX_USB_GPIOx | GPIO_OUT)
+ #define GPIO_GUMSTIX_USB_GPIOx_DIS_MD	(GPIO_GUMSTIX_USB_GPIOx | GPIO_IN)
+ 
++/*
++ * SD/MMC definitions
++ */
++#define GUMSTIX_GPIO_nSD_WP		22 /* SD Write Protect */
++#define GUMSTIX_GPIO_nSD_DETECT		11 /* MMC/SD Card Detect */
++#define GUMSTIX_IRQ_GPIO_nSD_DETECT	IRQ_GPIO(GUMSTIX_GPIO_nSD_DETECT)
+ 
+ /*
+  * SMC Ethernet definitions
-- 
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