Merge remote-tracking branch 'u-boot-atmel/master'

arch/arm/cpu/arm926ejs/at91/at91sam9x5_devices.c

@@ -118,6 +118,21 @@ void at91_serial2_hw_init(void)
 	writel(1 << ATMEL_ID_USART2, &pmc->pcer);
 }
 
+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 */
+
+	/* Enable clock for MCI0 */
+	struct at91_pmc *pmc = (struct at91_pmc *)ATMEL_BASE_PMC;
+	writel(1 << ATMEL_ID_HSMCI0, &pmc->pcer);
+}
+
 #ifdef CONFIG_ATMEL_SPI
 void at91_spi0_hw_init(unsigned long cs_mask)
 {

board/atmel/at91sam9x5ek/at91sam9x5ek.c

@@ -31,6 +31,7 @@
 #include <asm/arch/clk.h>
 #include <lcd.h>
 #include <atmel_hlcdc.h>
+#include <atmel_mci.h>
 #ifdef CONFIG_MACB
 #include <net.h>
 #endif
@@ -258,6 +259,15 @@ void spi_cs_deactivate(struct spi_slave *slave)
 }
 #endif /* CONFIG_ATMEL_SPI */
 
+#ifdef CONFIG_GENERIC_ATMEL_MCI
+int board_mmc_init(bd_t *bd)
+{
+	at91_mci_hw_init();
+
+	return atmel_mci_init((void *)ATMEL_BASE_HSMCI0);
+}
+#endif
+
 int board_early_init_f(void)
 {
 	at91_seriald_hw_init();

drivers/mmc/gen_atmel_mci.c

@@ -87,6 +87,11 @@ static void mci_set_mode(struct mmc *mmc, u32 hz, u32 blklen)
 		 | MMCI_BF(BLKLEN, blklen)
 		 | MMCI_BIT(RDPROOF)
 		 | MMCI_BIT(WRPROOF)), &mci->mr);
+	/*
+	 * On some new platforms BLKLEN in mci->mr is ignored.
+	 * Should use the BLKLEN in the block register.
+	 */
+	writel(MMCI_BF(BLKLEN, blklen), &mci->blkr);
 	initialized = 1;
 }
 
@@ -183,6 +188,12 @@ mci_send_cmd(struct mmc *mmc, struct mmc_cmd *cmd, struct mmc_data *data)
 	/* Figure out the transfer arguments */
 	cmdr = mci_encode_cmd(cmd, data, &error_flags);
 
+	/* For multi blocks read/write, set the block register */
+	if ((cmd->cmdidx == MMC_CMD_READ_MULTIPLE_BLOCK)
+			|| (cmd->cmdidx == MMC_CMD_WRITE_MULTIPLE_BLOCK))
+		writel(data->blocks | MMCI_BF(BLKLEN, mmc->read_bl_len),
+			&mci->blkr);
+
 	/* Send the command */
 	writel(cmd->cmdarg, &mci->argr);
 	writel(cmdr, &mci->cmdr);
@@ -310,8 +321,8 @@ static int mci_init(struct mmc *mmc)
 	writel(MMCI_BIT(MCIEN), &mci->cr);	/* enable mci */
 	writel(MMCI_BF(SCDSEL, MCI_BUS), &mci->sdcr);	/* select port */
 
-	/* Initial Time-outs */
+	/* This delay can be optimized, but stick with max value */
-	writel(0x5f, &mci->dtor);
+	writel(0x7f, &mci->dtor);
 	/* Disable Interrupts */
 	writel(~0UL, &mci->idr);
 

include/atmel_mci.h

@@ -38,7 +38,7 @@ typedef struct atmel_mci {
 	u32	sdcr;	/* 0x0c */
 	u32	argr;	/* 0x10 */
 	u32	cmdr;	/* 0x14 */
-	u32	_18;	/* 0x18 */
+	u32	blkr;	/* 0x18 */
 	u32	_1c;	/* 0x1c */
 	u32	rspr;	/* 0x20 */
 	u32	rspr1;	/* 0x24 */
@@ -118,6 +118,11 @@ typedef struct atmel_mci {
 #define MMCI_TRTYP_OFFSET			19
 #define MMCI_TRTYP_SIZE				2
 
+/* Bitfields in BLKR */
+/* MMCI_BLKLEN_OFFSET/SIZE already defined in MR */
+#define MMCI_BCNT_OFFSET			0
+#define MMCI_BCNT_SIZE			16
+
 /* Bitfields in RSPRx */
 #define MMCI_RSP_OFFSET				0
 #define MMCI_RSP_SIZE				32

include/configs/at91sam9x5ek.h

@@ -89,6 +89,7 @@
 #define CONFIG_CMD_DHCP
 #define CONFIG_CMD_NAND
 #define CONFIG_CMD_SF
+#define CONFIG_CMD_MMC
 
 /* SDRAM */
 #define CONFIG_NR_DRAM_BANKS		1
@@ -138,6 +139,15 @@
 #define CONFIG_CMD_UBIFS
 #endif
 
+/* MMC */
+#ifdef CONFIG_CMD_MMC
+#define CONFIG_MMC
+#define CONFIG_CMD_FAT
+#define CONFIG_GENERIC_MMC
+#define CONFIG_GENERIC_ATMEL_MCI
+#define CONFIG_DOS_PARTITION
+#endif
+
 /* Ethernet */
 #define CONFIG_MACB
 #define CONFIG_RMII