diff options
| author | Lukasz Majewski <lukma@denx.de> | 2019-10-10 16:11:24 +0200 |
|---|---|---|
| committer | Stefano Babic <sbabic@denx.de> | 2019-10-13 22:49:11 +0200 |
| commit | 58c76e63f17f87afdc45ec32a84c5e86fc2b6fdd (patch) | |
| tree | 51025156e3b9144e59dcc165da6853a6de38ff1d | |
| parent | 309ce98fcbc186789f11794af491f8e6c9627443 (diff) | |
imx: tpc70: Add board_boot_order() to distinguish between eMMC and SD boot
The TPC70 can boot from SD card (debug/development) and eMMC (production).
The board_boot_order() function provides a run time check for the device
from which one wants to boot (it is selected by GPIO pins setup).
Moreover, a fallback to SD card is provided if the detection is not
possible or working properly.
Signed-off-by: Lukasz Majewski <lukma@denx.de>
| -rw-r--r-- | board/k+p/kp_imx6q_tpc/kp_imx6q_tpc_spl.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/board/k+p/kp_imx6q_tpc/kp_imx6q_tpc_spl.c b/board/k+p/kp_imx6q_tpc/kp_imx6q_tpc_spl.c index e284d5ec57..e48a577f79 100644 --- a/board/k+p/kp_imx6q_tpc/kp_imx6q_tpc_spl.c +++ b/board/k+p/kp_imx6q_tpc/kp_imx6q_tpc_spl.c @@ -308,6 +308,26 @@ int board_mmc_init(bd_t *bd) return fsl_esdhc_initialize(bd, &usdhc_cfg[0]); } +void board_boot_order(u32 *spl_boot_list) +{ + u32 boot_device = spl_boot_device(); + u32 reg = imx6_src_get_boot_mode(); + + reg = (reg & IMX6_BMODE_MASK) >> IMX6_BMODE_SHIFT; + + debug("%s: boot device: 0x%x (0x4 SD, 0x6 eMMC)\n", __func__, reg); + if (boot_device == BOOT_DEVICE_MMC1) + if (reg == IMX6_BMODE_MMC || reg == IMX6_BMODE_EMMC) + boot_device = BOOT_DEVICE_MMC2; + + spl_boot_list[0] = boot_device; + /* + * Below boot device is a 'fallback' - it shall always be possible to + * boot from SD card + */ + spl_boot_list[1] = BOOT_DEVICE_MMC1; +} + void board_init_f(ulong dummy) { /* setup AIPS and disable watchdog */ |