
Hi Peng and Ye Li,
The following SDHC error is seen when running top of tree U-Boot on an imx7d-sabresd board:
U-Boot 2023.04-00652-g487e42f7bc5e (Apr 05 2023 - 22:14:21 -0300)
CPU: Freescale i.MX7D rev1.0 1000 MHz (running at 792 MHz) CPU: Commercial temperature grade (0C to 95C) at 35C Reset cause: POR Model: Freescale i.MX7 SabreSD Board Board: i.MX7D SABRESD in non-secure mode DRAM: 1 GiB Core: 100 devices, 19 uclasses, devicetree: separate PMIC: PFUZE3000 DEV_ID=0x30 REV_ID=0x10 MMC: FSL_SDHC: 0, FSL_SDHC: 1, FSL_SDHC: 2 Loading Environment from MMC... Card did not respond to voltage select! : -110 *** Warning - No block device, using default environment
In: serial Out: serial Err: serial SEC0: RNG instantiated Net: eth0: ethernet@30be0000 Hit any key to stop autoboot: 0 => saveenv Saving Environment to MMC... Card did not respond to voltage select! : -110 No block device Failed (1)
I cannot use the SD card anymore.
If I do the following change:
diff --git a/configs/mx7dsabresd_defconfig b/configs/mx7dsabresd_defconfig index 26e68d30d267..4c81d1f167e9 100644 --- a/configs/mx7dsabresd_defconfig +++ b/configs/mx7dsabresd_defconfig @@ -49,9 +49,6 @@ CONFIG_DM_74X164=y CONFIG_DM_I2C=y CONFIG_SYS_I2C_MXC=y CONFIG_SUPPORT_EMMC_BOOT=y -CONFIG_MMC_IO_VOLTAGE=y -CONFIG_MMC_UHS_SUPPORT=y -CONFIG_MMC_HS200_SUPPORT=y CONFIG_FSL_USDHC=y CONFIG_PHYLIB=y CONFIG_PHY_BROADCOM=y
Then the SD card works again.
Any ideas on how this can be properly fixed?
Thanks