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path: root/packages/linux/linux-ezx-2.6.21/patches/e680-mci.patch
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Index: linux-2.6.21/arch/arm/mach-pxa/ezx-e680.c
===================================================================
--- linux-2.6.21.orig/arch/arm/mach-pxa/ezx-e680.c	2007-09-07 11:32:30.000000000 -0300
+++ linux-2.6.21/arch/arm/mach-pxa/ezx-e680.c	2007-09-07 11:54:44.000000000 -0300
@@ -13,6 +13,8 @@
 #include <linux/init.h>
 #include <linux/platform_device.h>
 #include <linux/fb.h>
+#include <linux/mmc/host.h>
+#include <linux/irq.h>
 
 #include <asm/mach-types.h>
 #include <asm/mach/arch.h>
@@ -20,12 +22,106 @@
 #include <asm/arch/pxafb.h>
 #include <asm/arch/ezx.h>
 #include <asm/arch/ezx-pcap.h>
+#include <asm/arch/mmc.h>
 
 #include "generic.h"
 
 extern void ezx_lcd_power(int, struct fb_var_screeninfo *);
 extern void ezx_backlight_power(int);
 
+#ifdef CONFIG_EZX_PCAP
+extern int ezx_pcap_mmcsd_power(int);
+extern void ezx_pcap_mmcsd_voltage(u_int32_t);
+#else
+#define ezx_pcap_mmcsd_voltage(x) {}
+#define ezx_pcap_mmcsd_power(x) {}
+#endif
+
+static struct pxamci_platform_data e680_mci_platform_data;
+
+static u_int8_t mmc_voltage[] = {
+	[MMC_VDD_160] = 3,
+	[MMC_VDD_170] = 3,
+	[MMC_VDD_180] = 3,
+	[MMC_VDD_190] = 3,
+	[MMC_VDD_200] = 3,
+	[MMC_VDD_210] = 3,
+	[MMC_VDD_220] = 3,
+	[MMC_VDD_230] = 3,
+	[MMC_VDD_240] = 3,
+	[MMC_VDD_250] = 3,
+	[MMC_VDD_260] = 3,
+	[MMC_VDD_270] = 3,
+	[MMC_VDD_280] = 3,
+	[MMC_VDD_290] = 3,
+	[MMC_VDD_300] = 3,
+	[MMC_VDD_310] = 3,
+	[MMC_VDD_320] = 3,
+	[MMC_VDD_330] = 3,
+	[MMC_VDD_340] = 3,
+	[MMC_VDD_350] = 3,
+	[MMC_VDD_360] = 3,
+};
+
+static int e680_mci_init(struct device *dev,
+                       irqreturn_t (*ezx_detect_int)(int, void *),
+                       void *data)
+{
+       int err;
+
+       /* Setup GPIO for PXA27x MMC/SD controller */
+       pxa_gpio_mode(GPIO32_MMCCLK_MD);
+       pxa_gpio_mode(GPIO112_MMCCMD_MD);
+       pxa_gpio_mode(GPIO92_MMCDAT0_MD);
+       pxa_gpio_mode(GPIO109_MMCDAT1_MD);
+       pxa_gpio_mode(GPIO110_MMCDAT2_MD);
+       pxa_gpio_mode(GPIO111_MMCDAT3_MD);
+
+       ezx_pcap_mmcsd_power(1);
+
+       e680_mci_platform_data.detect_delay = msecs_to_jiffies(250);
+
+       err = request_irq(0x49, ezx_detect_int, SA_INTERRUPT,
+                       "MMC card detect", data);
+       if (err) {
+               printk(KERN_ERR "ezx_mci_detect: MMC/SD: can't request "
+                       "MMC card detect IRQ\n");
+               return -1;
+       }
+
+       set_irq_type(0x0b, IRQT_BOTHEDGE);
+
+       return 0;
+}
+
+
+static inline int e680_mci_get_ro(struct device *dev)
+{
+        return (GPLR3 & 0x800);
+}
+
+static void e680_mci_setpower(struct device *dev, unsigned int vdd)
+{
+        if (vdd <= MMC_VDD_360)
+                ezx_pcap_mmcsd_voltage(mmc_voltage[vdd]);
+
+        ezx_pcap_mmcsd_power(1);
+}
+
+static void e680_mci_exit(struct device *dev, void *data)
+{
+	ezx_pcap_mmcsd_power(0);
+	free_irq(0x49, data);
+}
+
+static struct pxamci_platform_data e680_mci_platform_data = {
+	.ocr_mask       = MMC_VDD_27_28,
+	.init           = e680_mci_init,
+	.get_ro		= e680_mci_get_ro,
+	.setpower       = e680_mci_setpower,
+	.exit           = e680_mci_exit,
+};
+
 static struct pxafb_mode_info mode_e680 = {
 	.pixclock	= 150000,
 	.xres		= 240,
@@ -136,6 +232,7 @@
 	PSLR  = 0x05800f00;
 
 	set_pxa_fb_info(&e680_fb_info);
+	pxa_set_mci_info(&e680_mci_platform_data);
 
         /* clear EMU MUX1/MUX2 (low) to close the audio path to EMU */
 	pxa_gpio_mode(GPIO_EMU_MUX1|GPIO_OUT);