From d66e35fab8789b5dd6f1b8e6f3871ea4f44d32a3 Mon Sep 17 00:00:00 2001
From: Pavel Pisa <ppisa@pikron.com>
Date: Sun, 2 Apr 2006 16:58:38 +0100
Subject: [PATCH] [ARM] 3446/1: i.MX: MMC/SD SDHC controller registration for
 i.MX/MX1 MX1ADS board

Patch from Pavel Pisa

From: Stefano Fedrigo <aleph@develer.com>

This adds to the MX1ADS platform the needed code to detect
insertion/removal of an MMC/SD card.  Tested on a v1.1 board.

Signed-off-by: Stefano Fedrigo <aleph@develer.com>
Signed-off-by: Pavel Pisa <pisa@cmp.felk.cvut.cz>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/mach-imx/mx1ads.c | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/arch/arm/mach-imx/mx1ads.c b/arch/arm/mach-imx/mx1ads.c
index 8ab1b040288..e34d0df90ae 100644
--- a/arch/arm/mach-imx/mx1ads.c
+++ b/arch/arm/mach-imx/mx1ads.c
@@ -25,6 +25,7 @@
 #include <asm/mach-types.h>
 
 #include <asm/mach/arch.h>
+#include <asm/arch/mmc.h>
 #include <linux/interrupt.h>
 #include "generic.h"
 
@@ -51,11 +52,28 @@ static struct platform_device *devices[] __initdata = {
 	&cs89x0_device,
 };
 
+#ifdef CONFIG_MMC_IMX
+static int mx1ads_mmc_card_present(void)
+{
+	/* MMC/SD Card Detect is PB 20 on MX1ADS V1.0.7 */
+	return (SSR(1) & (1 << 20) ? 0 : 1);
+}
+
+static struct imxmmc_platform_data mx1ads_mmc_info = {
+       .card_present = mx1ads_mmc_card_present,
+};
+#endif
+
 static void __init
 mx1ads_init(void)
 {
 #ifdef CONFIG_LEDS
 	imx_gpio_mode(GPIO_PORTA | GPIO_OUT | 2);
+#endif
+#ifdef CONFIG_MMC_IMX
+	/* SD/MMC card detect */
+	imx_gpio_mode(GPIO_PORTB | GPIO_GIUS | GPIO_IN | 20);
+	imx_set_mmc_info(&mx1ads_mmc_info);
 #endif
 	platform_add_devices(devices, ARRAY_SIZE(devices));
 }
-- 
2.41.0