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path: root/packages/linux/linux-ezx-2.6.24/patches/e6-mci.patch
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Index: linux-2.6.23/arch/arm/mach-pxa/ezx-e6.c
===================================================================
--- linux-2.6.23.orig/arch/arm/mach-pxa/ezx-e6.c
+++ linux-2.6.23/arch/arm/mach-pxa/ezx-e6.c
@@ -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 +22,102 @@
 #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 e6_mci_platform_data;
+
+static u_int8_t mmc_voltage[] = {
+	[ilog2(MMC_VDD_165_195)] = 6,
+	[ilog2(MMC_VDD_20_21)] = 7,
+	[ilog2(MMC_VDD_21_22)] = 8,
+	[ilog2(MMC_VDD_22_23)] = 8,
+	[ilog2(MMC_VDD_23_24)] = 9,
+	[ilog2(MMC_VDD_24_25)] = 9,
+	[ilog2(MMC_VDD_25_26)] = 10,
+	[ilog2(MMC_VDD_26_27)] = 10,
+	[ilog2(MMC_VDD_27_28)] = 11,
+	[ilog2(MMC_VDD_28_29)] = 11,
+	[ilog2(MMC_VDD_29_30)] = 12,
+	[ilog2(MMC_VDD_30_31)] = 12,
+	[ilog2(MMC_VDD_31_32)] = 13,
+	[ilog2(MMC_VDD_32_33)] = 13,
+	[ilog2(MMC_VDD_33_34)] = 14,
+	[ilog2(MMC_VDD_34_35)] = 14,
+	[ilog2(MMC_VDD_35_36)] = 15,
+};
+
+static int e6_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);
+
+       e6_mci_platform_data.detect_delay = msecs_to_jiffies(250);
+
+       err = request_irq(0x49, ezx_detect_int, IRQF_DISABLED,
+                       "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 void e6_mci_setpower(struct device *dev, unsigned int vdd)
+{
+	struct pxamci_platform_data* p_d = dev->platform_data;
+
+	if (( 1 << vdd) & p_d->ocr_mask)
+		ezx_pcap_mmcsd_voltage(mmc_voltage[vdd]);
+
+	ezx_pcap_mmcsd_power(1);
+}
+
+static void e6_mci_exit(struct device *dev, void *data)
+{
+	ezx_pcap_mmcsd_power(0);
+	free_irq(0x49, data);
+}
+
+static struct pxamci_platform_data e6_mci_platform_data = {
+	.ocr_mask       = MMC_VDD_165_195|MMC_VDD_20_21|MMC_VDD_21_22
+			  |MMC_VDD_22_23|MMC_VDD_23_24|MMC_VDD_24_25
+			  |MMC_VDD_25_26|MMC_VDD_26_27|MMC_VDD_27_28
+			  |MMC_VDD_28_29|MMC_VDD_29_30|MMC_VDD_30_31
+			  |MMC_VDD_31_32|MMC_VDD_32_33|MMC_VDD_33_34
+			  |MMC_VDD_34_35|MMC_VDD_35_36,
+	.init           = e6_mci_init,
+	.setpower       = e6_mci_setpower,
+	.exit           = e6_mci_exit,
+};
+
 static struct pxafb_mode_info mode_e6 = {
 	.pixclock = 192308,
 	.xres = 240,
@@ -101,6 +193,7 @@
 static void __init e6_init(void)
 {
 	set_pxa_fb_info(&e6_fb_info);
+	pxa_set_mci_info(&e6_mci_platform_data);
 
 	platform_add_devices(devices, ARRAY_SIZE(devices));
 }