From: Lad, Prabhakar prabhakar.lad@ti.com
This patch adds support for MMC/SD on DA850/OMAP-L138.
Signed-off-by: Lad, Prabhakar prabhakar.lad@ti.com Signed-off-by: Rajashekhara, Sudhakar sudhakar.raj@ti.com Signed-off-by: Hadli, Manjunath manjunath.hadli@ti.com --- arch/arm/cpu/arm926ejs/davinci/da850_pinmux.c | 13 ++++++++++ arch/arm/include/asm/arch-davinci/hardware.h | 1 + arch/arm/include/asm/arch-davinci/pinmux_defs.h | 3 ++ board/davinci/da8xxevm/da850evm.c | 28 +++++++++++++++++++++++ include/configs/da850evm.h | 14 +++++++++++ 5 files changed, 59 insertions(+), 0 deletions(-)
diff --git a/arch/arm/cpu/arm926ejs/davinci/da850_pinmux.c b/arch/arm/cpu/arm926ejs/davinci/da850_pinmux.c index fa07fb5..a95e419 100644 --- a/arch/arm/cpu/arm926ejs/davinci/da850_pinmux.c +++ b/arch/arm/cpu/arm926ejs/davinci/da850_pinmux.c @@ -169,3 +169,16 @@ const struct pinmux_config emifa_pins_nor[] = { { pinmux(12), 1, 6 }, /* EMA_A[1] */ { pinmux(12), 1, 7 }, /* EMA_A[0] */ }; + +/* MMC0 pin muxer settings */ +const struct pinmux_config mmc0_pins[] = { + /* GP0[11] is required for SD to work on Rev 3 EVMs */ + { pinmux(0), 8, 4 }, /* GP0[11] */ + { pinmux(10), 2, 0 }, /* MMCSD0_CLK */ + { pinmux(10), 2, 1 }, /* MMCSD0_CMD */ + { pinmux(10), 2, 2 }, /* MMCSD0_DAT_0 */ + { pinmux(10), 2, 3 }, /* MMCSD0_DAT_1 */ + { pinmux(10), 2, 4 }, /* MMCSD0_DAT_2 */ + { pinmux(10), 2, 5 }, /* MMCSD0_DAT_3 */ + /* DA850 supports only 4-bit mode, remaining pins are not configured */ +}; diff --git a/arch/arm/include/asm/arch-davinci/hardware.h b/arch/arm/include/asm/arch-davinci/hardware.h index b145c6e..f6b7a2c 100644 --- a/arch/arm/include/asm/arch-davinci/hardware.h +++ b/arch/arm/include/asm/arch-davinci/hardware.h @@ -446,6 +446,7 @@ struct davinci_pllc_regs { #define DAVINCI_SPI1_CLKID (cpu_is_da830() ? 2 : ASYNC3) /* Clock IDs */ enum davinci_clk_ids { + DAVINCI_MMCSD_CLKID = 2, DAVINCI_SPI0_CLKID = 2, DAVINCI_UART2_CLKID = 2, DAVINCI_MMC_CLKID = 2, diff --git a/arch/arm/include/asm/arch-davinci/pinmux_defs.h b/arch/arm/include/asm/arch-davinci/pinmux_defs.h index 07aceaa..c9ac697 100644 --- a/arch/arm/include/asm/arch-davinci/pinmux_defs.h +++ b/arch/arm/include/asm/arch-davinci/pinmux_defs.h @@ -48,4 +48,7 @@ extern const struct pinmux_config emifa_pins_cs4[1]; extern const struct pinmux_config emifa_pins_nand[12]; extern const struct pinmux_config emifa_pins_nor[43];
+/* MMC pin muxer settings */ +extern const struct pinmux_config mmc0_pins[7]; + #endif diff --git a/board/davinci/da8xxevm/da850evm.c b/board/davinci/da8xxevm/da850evm.c index 82d707f..608c652 100644 --- a/board/davinci/da8xxevm/da850evm.c +++ b/board/davinci/da8xxevm/da850evm.c @@ -36,6 +36,11 @@ #include <asm/errno.h> #include <hwconfig.h>
+#ifdef CONFIG_DAVINCI_MMC +#include <mmc.h> +#include <asm/arch/sdmmc_defs.h> +#endif + DECLARE_GLOBAL_DATA_PTR;
#ifdef CONFIG_DRIVER_TI_EMAC @@ -204,6 +209,23 @@ int misc_init_r(void) return 0; }
+#ifdef CONFIG_DAVINCI_MMC +static struct davinci_mmc mmc_sd0 = { + .reg_base = (struct davinci_mmc_regs *)DAVINCI_MMC_SD0_BASE, + .host_caps = MMC_MODE_4BIT, /* DA850 supports only 4-bit SD/MMC */ + .voltages = MMC_VDD_32_33 | MMC_VDD_33_34, + .version = MMC_CTLR_VERSION_2, +}; + +int board_mmc_init(bd_t *bis) +{ + mmc_sd0.input_clk = clk_get(DAVINCI_MMCSD_CLKID); + + /* Add slot-0 to mmc subsystem */ + return davinci_mmc_init(bis, &mmc_sd0); +} +#endif + static const struct pinmux_config gpio_pins[] = { #ifdef CONFIG_USE_NOR /* GP0[11] is required for NOR to work on Rev 3 EVMs */ @@ -236,6 +258,9 @@ const struct pinmux_resource pinmuxes[] = { PINMUX_ITEM(emifa_pins_nor), #endif PINMUX_ITEM(gpio_pins), +#ifdef CONFIG_DAVINCI_MMC + PINMUX_ITEM(mmc0_pins), +#endif };
const int pinmuxes_size = ARRAY_SIZE(pinmuxes); @@ -246,6 +271,9 @@ const struct lpsc_resource lpsc[] = { { DAVINCI_LPSC_EMAC }, /* image download */ { DAVINCI_LPSC_UART2 }, /* console */ { DAVINCI_LPSC_GPIO }, +#ifdef CONFIG_DAVINCI_MMC + { DAVINCI_LPSC_MMC_SD }, +#endif };
const int lpsc_size = ARRAY_SIZE(lpsc); diff --git a/include/configs/da850evm.h b/include/configs/da850evm.h index 989472b..9301a3b 100644 --- a/include/configs/da850evm.h +++ b/include/configs/da850evm.h @@ -313,6 +313,20 @@ #undef CONFIG_CMD_ENV #endif
+/* SD/MMC */ +#define CONFIG_MMC +#define CONFIG_DAVINCI_MMC_SD1 +#define CONFIG_MMC_MBLOCK +#define CONFIG_GENERIC_MMC +#define CONFIG_DAVINCI_MMC + +#ifdef CONFIG_MMC +#define CONFIG_DOS_PARTITION +#define CONFIG_CMD_EXT2 +#define CONFIG_CMD_FAT +#define CONFIG_CMD_MMC +#endif + /* defines for SPL */ #define CONFIG_SPL #define CONFIG_SPL_SPI_SUPPORT