ARM: at91: at91sam9rlek: add mci support

This patch enable the MCI support for at91sam9rlek board.

Signed-off-by: Josh Wu <josh.wu@atmel.com>
[rebase on ToT]
Signed-off-by: Andreas Bießmann <andreas.devel@googlemail.com>

arch/arm/mach-at91/arm926ejs/at91sam9rl_devices.c

@@ -101,3 +101,20 @@ void at91_spi0_hw_init(unsigned long cs_mask)
 	}
 }
 #endif
+
+#ifdef CONFIG_GENERIC_ATMEL_MCI
+void at91_mci_hw_init(void)
+{
+	struct at91_pmc *pmc = (struct at91_pmc *)ATMEL_BASE_PMC;
+
+	at91_set_a_periph(AT91_PIO_PORTA, 2, 0);        /* MCI CLK */
+	at91_set_a_periph(AT91_PIO_PORTA, 1, 0);        /* MCI CDA */
+	at91_set_a_periph(AT91_PIO_PORTA, 0, 0);        /* MCI DA0 */
+	at91_set_a_periph(AT91_PIO_PORTA, 3, 0);        /* MCI DA1 */
+	at91_set_a_periph(AT91_PIO_PORTA, 4, 0);        /* MCI DA2 */
+	at91_set_a_periph(AT91_PIO_PORTA, 5, 0);        /* MCI DA3 */
+
+	/* Enable clock */
+	writel(1 << ATMEL_ID_MCI, &pmc->pcer);
+}
+#endif

board/atmel/at91sam9rlek/at91sam9rlek.c

@@ -19,6 +19,7 @@
 
 #include <lcd.h>
 #include <atmel_lcdc.h>
+#include <atmel_mci.h>
 #if defined(CONFIG_RESET_PHY_R) && defined(CONFIG_MACB)
 #include <net.h>
 #endif
@@ -162,6 +163,15 @@ void lcd_show_board_info(void)
 #endif /* CONFIG_LCD_INFO */
 #endif
 
+#ifdef CONFIG_GENERIC_ATMEL_MCI
+int board_mmc_init(bd_t *bis)
+{
+	at91_mci_hw_init();
+
+	return atmel_mci_init((void *)ATMEL_BASE_MCI);
+}
+#endif
+
 int board_early_init_f(void)
 {
 	struct at91_pmc *pmc = (struct at91_pmc *)ATMEL_BASE_PMC;

include/configs/at91sam9rlek.h

@@ -124,6 +124,17 @@
 
 #endif
 
+/* MMC */
+#define CONFIG_CMD_MMC
+
+#ifdef CONFIG_CMD_MMC
+#define CONFIG_MMC
+#define CONFIG_GENERIC_MMC
+#define CONFIG_GENERIC_ATMEL_MCI
+#define CONFIG_CMD_FAT
+#define CONFIG_DOS_PARTITION
+#endif
+
 /* Ethernet - not present */
 
 /* USB - not supported */