diff options
| author | Shengzhou Liu <Shengzhou.Liu@freescale.com> | 2015-07-28 10:46:47 +0800 |
|---|---|---|
| committer | York Sun <yorksun@freescale.com> | 2015-07-31 08:50:19 -0700 |
| commit | e04dd12bf1fd04a95b9a7c36ddc5ee5ddeb06dab (patch) | |
| tree | 94e5559f74b798f67e340830ce60f216b25a0d2b /board/freescale/t102xrdb/spl.c | |
| parent | 4bf7f908250f21bb0ea6b81f36e115914167790a (diff) | |
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: Shengzhou Liu <Shengzhou.Liu@freescale.com>
Reviewed-by: York Sun <yorksun@freescale.com>
Diffstat (limited to 'board/freescale/t102xrdb/spl.c')
| -rw-r--r-- | board/freescale/t102xrdb/spl.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/board/freescale/t102xrdb/spl.c b/board/freescale/t102xrdb/spl.c index 1a3a996439..9c581ff88e 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; |