diff options
| -rw-r--r-- | arch/arm/cpu/arm926ejs/at91/at91sam9x5_devices.c | 15 | ||||
| -rw-r--r-- | board/atmel/at91sam9x5ek/at91sam9x5ek.c | 10 | ||||
| -rw-r--r-- | drivers/mmc/gen_atmel_mci.c | 15 | ||||
| -rw-r--r-- | include/atmel_mci.h | 7 | ||||
| -rw-r--r-- | include/configs/at91sam9x5ek.h | 10 |
5 files changed, 54 insertions, 3 deletions
diff --git a/arch/arm/cpu/arm926ejs/at91/at91sam9x5_devices.c b/arch/arm/cpu/arm926ejs/at91/at91sam9x5_devices.c index 6d77219..9348552 100644 --- a/arch/arm/cpu/arm926ejs/at91/at91sam9x5_devices.c +++ b/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) { diff --git a/board/atmel/at91sam9x5ek/at91sam9x5ek.c b/board/atmel/at91sam9x5ek/at91sam9x5ek.c index 06028aa..edb0886 100644 --- a/board/atmel/at91sam9x5ek/at91sam9x5ek.c +++ b/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(); diff --git a/drivers/mmc/gen_atmel_mci.c b/drivers/mmc/gen_atmel_mci.c index 4968c5e..67b2dbe 100644 --- a/drivers/mmc/gen_atmel_mci.c +++ b/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 */ - writel(0x5f, &mci->dtor); + /* This delay can be optimized, but stick with max value */ + writel(0x7f, &mci->dtor); /* Disable Interrupts */ writel(~0UL, &mci->idr); diff --git a/include/atmel_mci.h b/include/atmel_mci.h index 3dd5d67..c711881 100644 --- a/include/atmel_mci.h +++ b/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 diff --git a/include/configs/at91sam9x5ek.h b/include/configs/at91sam9x5ek.h index cbdc3e9..71f765b 100644 --- a/include/configs/at91sam9x5ek.h +++ b/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 |