Subject: [PATCH v2 03/11] 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
board/k+p/kp_imx6q_tpc/kp_imx6q_tpc_spl.c | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+)
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 */
Reviewed-by: Peng Fan peng.fan@nxp.com
-- 2.11.0