Hi Tim,
On Wed, Dec 30, 2020 at 1:54 PM Tim Harvey tharvey@gateworks.com wrote:
Andrey,
I did mention that I am using the imx8mm-evk. When I saw that my custom board was having issues with sd_get_capabilities() I switched to the imx8mm-evk and confirmed my findings there.
I'm using master (ab865a8ee5c1) with imx8mm_evk_defconfig running on an imx8mm-evk board configured via dip switches to boot from eMMC. I have a SDR104 microSD which detects and operates as such in Linux and this is what I see in U-Boot:
U-Boot SPL 2021.01-rc4-00029-gab865a8 (Dec 30 2020 - 08:29:24 -0800) Normal Boot WDT: Started with servicing (60s timeout) Trying to boot from MMC2
U-Boot 2021.01-rc4-00029-gab865a8 (Dec 30 2020 - 08:29:24 -0800)
CPU: Freescale i.MX8MMQ rev1.0 at 1200 MHz Reset cause: POR Model: FSL i.MX8MM EVK board DRAM: 2 GiB WDT: Started with servicing (60s timeout) MMC: FSL_SDHC: 1, FSL_SDHC: 2 Loading Environment from MMC... OK In: serial Out: serial Err: serial Net: eth0: ethernet@30be0000 Hit any key to stop autoboot: 0 u-boot=> mmc dev 1 Run CMD11 1.8V switch switch to partitions #0, OK mmc1 is current device u-boot=> mmc info Device: FSL_SDHC Manufacturer ID: 1b OEM: 534d Name: 00000 Bus Speed: 50000000 Mode: SD High Speed (50MHz) Rd Block Len: 512 SD version 3.0 High Capacity: Yes Capacity: 14.9 GiB Bus Width: 4-bit Erase Group Size: 512 Bytes
You can see that the 1.8V switch succeeds and the card is recognized as high-speed but does not show the SDR104 capability.
Could you please test this patch from Adam? https://patchwork.ozlabs.org/project/uboot/patch/20201230173907.2891555-1-af...