Quoting Ulf Hansson (2021-08-04 04:34:52)

+ Stephen

On Mon, 2 Aug 2021 at 12:41, [off-list ref] wrote:

quoted

Gentle Reminder

Thanks,
Sajida

On 2021-07-16 17:16, Shaik Sajida Bhanu wrote:

quoted

Whenever SDHC run at clock rate 50MHZ or below, the hardware data
timeout value will be 21.47secs, which is approx. 22secs and we have
a current software timeout value as 10secs. We have to set software
timeout value more than the hardware data timeout value to avioid
seeing
the below register dumps.

[  332.953670] mmc2: Timeout waiting for hardware interrupt.
[  332.959608] mmc2: sdhci: ============ SDHCI REGISTER DUMP
===========
[  332.966450] mmc2: sdhci: Sys addr:  0x00000000 | Version:
0x00007202
[  332.973256] mmc2: sdhci: Blk size:  0x00000200 | Blk cnt:
0x00000001
[  332.980054] mmc2: sdhci: Argument:  0x00000000 | Trn mode:
0x00000027
[  332.986864] mmc2: sdhci: Present:   0x01f801f6 | Host ctl:
0x0000001f
[  332.993671] mmc2: sdhci: Power:     0x00000001 | Blk gap:
0x00000000
[  333.000583] mmc2: sdhci: Wake-up:   0x00000000 | Clock:
0x00000007
[  333.007386] mmc2: sdhci: Timeout:   0x0000000e | Int stat:
0x00000000
[  333.014182] mmc2: sdhci: Int enab:  0x03ff100b | Sig enab:
0x03ff100b
[  333.020976] mmc2: sdhci: ACmd stat: 0x00000000 | Slot int:
0x00000000
[  333.027771] mmc2: sdhci: Caps:      0x322dc8b2 | Caps_1:
0x0000808f
[  333.034561] mmc2: sdhci: Cmd:       0x0000183a | Max curr:
0x00000000
[  333.041359] mmc2: sdhci: Resp[0]:   0x00000900 | Resp[1]:
0x00000000
[  333.048157] mmc2: sdhci: Resp[2]:   0x00000000 | Resp[3]:
0x00000000
[  333.054945] mmc2: sdhci: Host ctl2: 0x00000000
[  333.059657] mmc2: sdhci: ADMA Err:  0x00000000 | ADMA Ptr:
0x0000000ffffff218
[  333.067178] mmc2: sdhci_msm: ----------- VENDOR REGISTER DUMP
-----------
[  333.074343] mmc2: sdhci_msm: DLL sts: 0x00000000 | DLL cfg:
0x6000642c | DLL cfg2: 0x0020a000
[  333.083417] mmc2: sdhci_msm: DLL cfg3: 0x00000000 | DLL usr ctl:
0x00000000 | DDR cfg: 0x80040873
[  333.092850] mmc2: sdhci_msm: Vndr func: 0x00008a9c | Vndr func2 :
0xf88218a8 Vndr func3: 0x02626040
[  333.102371] mmc2: sdhci:
============================================

So, set software timeout value more than hardware timeout value.

Signed-off-by: Shaik Sajida Bhanu <redacted>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>

Applied for fixes and by adding a stable tag, thanks!

Thanks. Looks like none of the stable trees could apply it though :(