FYI: head -r338341 on Pine64+ 2GB for a microsdhc boot media: mmc0: Failed to set VCCQ for card at relative address 43690

[Emmanuel Vadot]

On Tue, 28 Aug 2018 23:26:36 -0700
Mark Millard via freebsd-arm <freebsd-arm at freebsd.org> wrote:

> aw_mmc0: <Allwinner Integrated MMC/SD controller> mem 0x1c0f000-0x1c0ffff irq 8 on simplebus0
> mmc0: <MMC/SD bus> on aw_mmc0
> . . .
> mmcsd0: 32GB <SDHC SE32G 8.0 SN <REPLACED> MFG 07/2017 by 3 SD> at mmc0 50.0MHz/4bit/32768-block
> mmc0: Failed to set VCCQ for card at relative address 43690
> 
> It seem to tolerate that it did-not/could-not set the value.
> 
> 
> 
> It appears that sysutils/mmc-utils (still) just
> gets AW_MMC_INT_RESP_TIMEOUT / ioctl: Operation timed out
> for: mmc extcsd read /dev/mmcsd0 (once it is not mounted).
> 
> # mmc extcsd read /dev/mmcsd0 | more
> open: Operation not permitted
> 
> # df -m
> Filesystem               1M-blocks  Used  Avail Capacity  Mounted on
> /dev/ufs/PINE642GBrootfs     29400 16901  10147    62%    /
> devfs                            0     0      0   100%    /dev
> /dev/label/PINE642GBboot        63     0     63     0%    /boot/efi
> 
> Booting with / on a USB device instead and dismounting /boot/efi
> (on mmcsd0) gets:
> 
> # mmc extcsd read /dev/mmcsd0 | more
> AW_MMC_INT_RESP_TIMEOUT 
> ioctl: Operation timed out
> Could not read EXT_CSD from /dev/mmcsd0

 Why are you attempting to read a MMC v4.0+ register from an SDcard ?
(FYI this command works perfectly when executing on the eMMC on my
pine64-lts)

> 
> ===
> Mark Millard
> marklmi at yahoo.com
> ( dsl-only.net went
> away in early 2018-Mar)
> 
> _______________________________________________
> freebsd-arm at freebsd.org mailing list
> https://lists.freebsd.org/mailman/listinfo/freebsd-arm
> To unsubscribe, send any mail to "freebsd-arm-unsubscribe at freebsd.org"


-- 
Emmanuel Vadot <manu at bidouilliste.com> <manu at freebsd.org>