Hi, Fabio See attached patch, this is due to HW special requirement, but clock maintainer does NOT ack my patch, he prefer to fix it from clock core driver, but I think that make things complicated and also it looks like NOT feasible. Anson > -----Original Message----- > From: Fabio Estevam <festevam@xxxxxxxxx> > Sent: Thursday, September 26, 2019 4:02 AM > To: Anson Huang <anson.huang@xxxxxxx>; BOUGH CHEN > <haibo.chen@xxxxxxx> > Cc: linux-mmc <linux-mmc@xxxxxxxxxxxxxxx>; dl-linux-imx <linux- > imx@xxxxxxx> > Subject: SD card failure on i.MX7ULP EVK > > Hi, > > When booting a 5.2 or 5.3 kernel on imx7ulp-evk I see the following sdhc > error: > > [ 3.132133] sdhci-esdhc-imx 40370000.mmc: Got CD GPIO > [ 3.238632] mmc0: Reset 0x1 never completed. > [ 3.242935] mmc0: sdhci: ============ SDHCI REGISTER DUMP > =========== > [ 3.249490] mmc0: sdhci: Sys addr: 0x00000000 | Version: 0x00000002 > [ 3.256047] mmc0: sdhci: Blk size: 0x00000200 | Blk cnt: 0x00000001 > [ 3.262515] mmc0: sdhci: Argument: 0x0000885c | Trn mode: 0x00000000 > [ 3.269071] mmc0: sdhci: Present: 0x00088088 | Host ctl: 0x00000002 > [ 3.275620] mmc0: sdhci: Power: 0x00000000 | Blk gap: 0x00000080 > [ 3.282084] mmc0: sdhci: Wake-up: 0x00000008 | Clock: 0x0000007f > [ 3.288640] mmc0: sdhci: Timeout: 0x0000008c | Int stat: 0x00000000 > [ 3.295190] mmc0: sdhci: Int enab: 0x007f010b | Sig enab: 0x00000000 > [ 3.301653] mmc0: sdhci: ACmd stat: 0x00000000 | Slot int: 0x00008402 > [ 3.308209] mmc0: sdhci: Caps: 0x07eb0000 | Caps_1: 0x0000b400 > [ 3.314671] mmc0: sdhci: Cmd: 0x0000113a | Max curr: 0x00ffffff > [ 3.321225] mmc0: sdhci: Resp[0]: 0x00000900 | Resp[1]: 0x003b377f > [ 3.327775] mmc0: sdhci: Resp[2]: 0x325b5900 | Resp[3]: 0x00400e00 > [ 3.334239] mmc0: sdhci: Host ctl2: 0x00000000 > [ 3.338788] mmc0: sdhci: > ============================================ > [ 3.447581] mmc0: Reset 0x1 never completed. > [ 3.451890] mmc0: sdhci: ============ SDHCI REGISTER DUMP > =========== > [ 3.458453] mmc0: sdhci: Sys addr: 0x00000000 | Version: 0x00000002 > [ 3.465008] mmc0: sdhci: Blk size: 0x00000200 | Blk cnt: 0x00000001 > [ 3.471469] mmc0: sdhci: Argument: 0x0000885c | Trn mode: 0x00000000 > [ 3.478027] mmc0: sdhci: Present: 0x00088088 | Host ctl: 0x00000002 > [ 3.484493] mmc0: sdhci: Power: 0x00000000 | Blk gap: 0x00000080 > [ 3.491051] mmc0: sdhci: Wake-up: 0x00000008 | Clock: 0x0000007f > [ 3.497601] mmc0: sdhci: Timeout: 0x0000008c | Int stat: 0x00000000 > [ 3.504063] mmc0: sdhci: Int enab: 0x00000000 | Sig enab: 0x00000000 > [ 3.510618] mmc0: sdhci: ACmd stat: 0x00000000 | Slot int: 0x00008402 > [ 3.517171] mmc0: sdhci: Caps: 0x07eb0000 | Caps_1: 0x0000b400 > [ 3.523633] mmc0: sdhci: Cmd: 0x0000113a | Max curr: 0x00ffffff > [ 3.530189] mmc0: sdhci: Resp[0]: 0x00000900 | Resp[1]: 0x003b377f > [ 3.536740] mmc0: sdhci: Resp[2]: 0x325b5900 | Resp[3]: 0x00400e00 > [ 3.543201] mmc0: sdhci: Host ctl2: 0x00000000 > [ 3.547756] mmc0: sdhci: ADMA Err: 0x00000000 | ADMA Ptr: 0x00000000 > [ 3.554214] mmc0: sdhci: > ============================================ > [ 3.601580] mmc0: SDHCI controller on 40370000.mmc [40370000.mmc] > using ADMA > > Any ideas? > > Thanks, > > Fabio Estevam
Attachment:
0002-clk-imx-disable-i.mx7ulp-composite-clock-during-init.patch
Description: 0002-clk-imx-disable-i.mx7ulp-composite-clock-during-init.patch
