eMMC has no CD and WP pins, it needs to add board-specific board_mmc_getcd() and board_mmc_getwp() in SPL to support eMMC boot without external SD card inserted.
Signed-off-by: Shengzhou Liu Shengzhou.Liu@freescale.com --- board/freescale/t102xrdb/spl.c | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+)
diff --git a/board/freescale/t102xrdb/spl.c b/board/freescale/t102xrdb/spl.c index 1a3a996..9c581ff 100644 --- a/board/freescale/t102xrdb/spl.c +++ b/board/freescale/t102xrdb/spl.c @@ -30,6 +30,30 @@ unsigned long get_board_ddr_clk(void) return CONFIG_DDR_CLK_FREQ; }
+#if defined(CONFIG_SPL_MMC_BOOT) +#define GPIO1_SD_SEL 0x00020000 +int board_mmc_getcd(struct mmc *mmc) +{ + ccsr_gpio_t __iomem *pgpio = (void *)(CONFIG_SYS_MPC85xx_GPIO_ADDR); + u32 val = in_be32(&pgpio->gpdat); + + /* GPIO1_14, 0: eMMC, 1: SD */ + val &= GPIO1_SD_SEL; + + return val ? -1 : 1; +} + +int board_mmc_getwp(struct mmc *mmc) +{ + ccsr_gpio_t __iomem *pgpio = (void *)(CONFIG_SYS_MPC85xx_GPIO_ADDR); + u32 val = in_be32(&pgpio->gpdat); + + val &= GPIO1_SD_SEL; + + return val ? -1 : 0; +} +#endif + void board_init_f(ulong bootflag) { u32 plat_ratio, sys_clk, ccb_clk;