[U-Boot] [PATCH 2/2] ARM: at91sam9x5: enable MCI0 support for 9x5ek board.

Josh Wu josh.wu at atmel.com
Fri Sep 7 12:39:33 CEST 2012


Signed-off-by: Josh Wu <josh.wu at atmel.com>
---
 arch/arm/cpu/arm926ejs/at91/at91sam9x5_devices.c |   13 +++++++++++++
 board/atmel/at91sam9x5ek/at91sam9x5ek.c          |   16 ++++++++++++++++
 include/configs/at91sam9x5ek.h                   |    8 ++++++++
 3 files changed, 37 insertions(+)

diff --git a/arch/arm/cpu/arm926ejs/at91/at91sam9x5_devices.c b/arch/arm/cpu/arm926ejs/at91/at91sam9x5_devices.c
index 6d77219..3608e7c 100644
--- a/arch/arm/cpu/arm926ejs/at91/at91sam9x5_devices.c
+++ b/arch/arm/cpu/arm926ejs/at91/at91sam9x5_devices.c
@@ -230,3 +230,16 @@ void at91_macb_hw_init(void)
 #endif
 }
 #endif
+
+#if defined(CONFIG_GENERIC_ATMEL_MCI)
+void at91_mci_hw_init(void)
+{
+	/* Initialize the MCI0 */
+	at91_set_a_periph(AT91_PIO_PORTA, 17, 1);	/* MCCK */
+	at91_set_a_periph(AT91_PIO_PORTA, 16, 1);	/* MCCDA */
+	at91_set_a_periph(AT91_PIO_PORTA, 15, 1);	/* MCDA0 */
+	at91_set_a_periph(AT91_PIO_PORTA, 18, 1);	/* MCDA1 */
+	at91_set_a_periph(AT91_PIO_PORTA, 19, 1);	/* MCDA2 */
+	at91_set_a_periph(AT91_PIO_PORTA, 20, 1);	/* MCDA3 */
+}
+#endif
diff --git a/board/atmel/at91sam9x5ek/at91sam9x5ek.c b/board/atmel/at91sam9x5ek/at91sam9x5ek.c
index 06028aa..d1f05ef 100644
--- a/board/atmel/at91sam9x5ek/at91sam9x5ek.c
+++ b/board/atmel/at91sam9x5ek/at91sam9x5ek.c
@@ -42,6 +42,9 @@
 #ifdef CONFIG_ATMEL_SPI
 #include <spi.h>
 #endif
+#ifdef CONFIG_GENERIC_ATMEL_MCI
+#include <mmc.h>
+#endif
 
 DECLARE_GLOBAL_DATA_PTR;
 
@@ -258,6 +261,19 @@ void spi_cs_deactivate(struct spi_slave *slave)
 }
 #endif /* CONFIG_ATMEL_SPI */
 
+#ifdef CONFIG_GENERIC_ATMEL_MCI
+int board_mmc_init(bd_t *bd)
+{
+	/* Enable clock */
+	struct at91_pmc *pmc = (struct at91_pmc *)ATMEL_BASE_PMC;
+	writel(1 << ATMEL_ID_HSMCI0, &pmc->pcer);
+
+	at91_mci_hw_init();
+
+	return atmel_mci_init((void *)ATMEL_BASE_HSMCI0);
+}
+#endif
+
 int board_early_init_f(void)
 {
 	at91_seriald_hw_init();
diff --git a/include/configs/at91sam9x5ek.h b/include/configs/at91sam9x5ek.h
index 1ceb31a..974e08f 100644
--- a/include/configs/at91sam9x5ek.h
+++ b/include/configs/at91sam9x5ek.h
@@ -136,6 +136,14 @@
 #define CONFIG_CMD_UBIFS
 #endif
 
+/* MMC */
+#define CONFIG_MMC
+#define CONFIG_CMD_MMC
+#define CONFIG_CMD_FAT
+#define CONFIG_GENERIC_MMC
+#define CONFIG_GENERIC_ATMEL_MCI
+#define CONFIG_DOS_PARTITION
+
 /* Ethernet */
 #define CONFIG_MACB
 #define CONFIG_RMII
-- 
1.7.9.5



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