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imx: tpc70: Add board_boot_order() to distinguish between eMMC and SD boot

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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>
This commit is contained in:
Lukasz Majewski 2019-10-10 16:11:24 +02:00 committed by Stefano Babic
parent 309ce98fcb
commit 58c76e63f1
1 changed files with 20 additions and 0 deletions
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20
board/k+p/kp_imx6q_tpc/kp_imx6q_tpc_spl.c
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@ -308,6 +308,26 @@ int board_mmc_init(bd_t *bd)
return fsl_esdhc_initialize(bd, &usdhc_cfg[0]); 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) void board_init_f(ulong dummy)
{ {
/* setup AIPS and disable watchdog */ /* setup AIPS and disable watchdog */