MIPS: Alchemy: Wire up SD controller on DB/PB1200 boards.

Add au1xmmc platform data for PB1200/DB1200 boards and wire up the 2 SD
controllers for them.

Signed-off-by: Manuel Lauss <mano@roarinelk.homelinux.net>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

1 files changed, 81 insertions, 0 deletions

diff --git a/arch/mips/alchemy/pb1200/platform.c b/arch/mips/alchemy/pb1200/platform.c
index f8fb0aeac57..95303297c53 100644
--- a/arch/mips/alchemy/pb1200/platform.c
+++ b/arch/mips/alchemy/pb1200/platform.c
@@ -20,9 +20,90 @@
 
 #include <linux/dma-mapping.h>
 #include <linux/init.h>
+#include <linux/leds.h>
 #include <linux/platform_device.h>
 
 #include <asm/mach-au1x00/au1xxx.h>
+#include <asm/mach-au1x00/au1100_mmc.h>
+
+static int mmc_activity;
+
+static void pb1200mmc0_set_power(void *mmc_host, int state)
+{
+	if (state)
+		bcsr->board |= BCSR_BOARD_SD0PWR;
+	else
+		bcsr->board &= ~BCSR_BOARD_SD0PWR;
+
+	au_sync_delay(1);
+}
+
+static int pb1200mmc0_card_readonly(void *mmc_host)
+{
+	return (bcsr->status & BCSR_STATUS_SD0WP) ? 1 : 0;
+}
+
+static int pb1200mmc0_card_inserted(void *mmc_host)
+{
+	return (bcsr->sig_status & BCSR_INT_SD0INSERT) ? 1 : 0;
+}
+
+static void pb1200_mmcled_set(struct led_classdev *led,
+			enum led_brightness brightness)
+{
+	if (brightness != LED_OFF) {
+		if (++mmc_activity == 1)
+			bcsr->disk_leds &= ~(1 << 8);
+	} else {
+		if (--mmc_activity == 0)
+			bcsr->disk_leds |= (1 << 8);
+	}
+}
+
+static struct led_classdev pb1200mmc_led = {
+	.brightness_set	= pb1200_mmcled_set,
+};
+
+#ifndef CONFIG_MIPS_DB1200
+static void pb1200mmc1_set_power(void *mmc_host, int state)
+{
+	if (state)
+		bcsr->board |= BCSR_BOARD_SD1PWR;
+	else
+		bcsr->board &= ~BCSR_BOARD_SD1PWR;
+
+	au_sync_delay(1);
+}
+
+static int pb1200mmc1_card_readonly(void *mmc_host)
+{
+	return (bcsr->status & BCSR_STATUS_SD1WP) ? 1 : 0;
+}
+
+static int pb1200mmc1_card_inserted(void *mmc_host)
+{
+	return (bcsr->sig_status & BCSR_INT_SD1INSERT) ? 1 : 0;
+}
+#endif
+
+const struct au1xmmc_platform_data au1xmmc_platdata[2] = {
+	[0] = {
+		.set_power	= pb1200mmc0_set_power,
+		.card_inserted	= pb1200mmc0_card_inserted,
+		.card_readonly	= pb1200mmc0_card_readonly,
+		.cd_setup	= NULL,		/* use poll-timer in driver */
+		.led		= &pb1200mmc_led,
+	},
+#ifndef CONFIG_MIPS_DB1200
+	[1] = {
+		.set_power	= pb1200mmc1_set_power,
+		.card_inserted	= pb1200mmc1_card_inserted,
+		.card_readonly	= pb1200mmc1_card_readonly,
+		.cd_setup	= NULL,		/* use poll-timer in driver */
+		.led		= &pb1200mmc_led,
+	},
+#endif
+};
 
 static struct resource ide_resources[] = {
 	[0] = {