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Commit e04dd12b authored by Shengzhou Liu's avatar Shengzhou Liu Committed by York Sun
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powerpc/t1023rdb: eMMC boot without external SD card


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: default avatarShengzhou Liu <Shengzhou.Liu@freescale.com>
Reviewed-by: default avatarYork Sun <yorksun@freescale.com>
parent 4bf7f908
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......@@ -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;
......
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