> -----Original Message----- > From: Fabio Estevam <festevam@xxxxxxxxx> > Sent: 2022年5月24日 21:31 > To: Bough Chen <haibo.chen@xxxxxxx> > Cc: linux-mmc <linux-mmc@xxxxxxxxxxxxxxx>; Adrian Hunter > <adrian.hunter@xxxxxxxxx>; dl-linux-imx <linux-imx@xxxxxxx>; Sebastian > Reichel <sebastian.reichel@xxxxxxxxxxxxx>; Martin Fuzzey > <martin.fuzzey@flowbird.group> > Subject: imx7d: Timeout waiting for hardware interrupt. > > Hi, > > On an imx7d board running 5.10.y the following mmc2 timeout is observed: > > mmc2: Timeout waiting for hardware interrupt. > mmc2: sdhci: ============ SDHCI REGISTER DUMP =========== > mmc2: sdhci: Sys addr: 0x82f9425c | Version: 0x00000002 > mmc2: sdhci: Blk size: 0x0000002c | Blk cnt: 0x00000001 > mmc2: sdhci: Argument: 0x1410002c | Trn mode: 0x00000013 > mmc2: sdhci: Present: 0x01d88a0a | Host ctl: 0x00000013 > mmc2: sdhci: Power: 0x00000002 | Blk gap: 0x00000080 > mmc2: sdhci: Wake-up: 0x00000008 | Clock: 0x0000003f > mmc2: sdhci: Timeout: 0x0000008f | Int stat: 0x00000000 > mmc2: sdhci: Int enab: 0x107f100b | Sig enab: 0x107f100b > mmc2: sdhci: ACmd stat: 0x00000000 | Slot int: 0x00000302 > mmc2: sdhci: Caps: 0x07eb0000 | Caps_1: 0x0000b400 > mmc2: sdhci: Cmd: 0x0000353a | Max curr: 0x00ffffff > mmc2: sdhci: Resp[0]: 0x00001000 | Resp[1]: 0x00000000 > mmc2: sdhci: Resp[2]: 0x00000000 | Resp[3]: 0x00000000 > mmc2: sdhci: Host ctl2: 0x00000000 > mmc2: sdhci: ADMA Err: 0x00000007 | ADMA Ptr: 0x9c042200 > mmc2: sdhci-esdhc-imx: ========= ESDHC IMX DEBUG STATUS DUMP > ========= > mmc2: sdhci-esdhc-imx: cmd debug status: 0x2100 > mmc2: sdhci-esdhc-imx: data debug status: 0x2200 > mmc2: sdhci-esdhc-imx: trans debug status: 0x2300 > mmc2: sdhci-esdhc-imx: dma debug status: 0x2402 > mmc2: sdhci-esdhc-imx: adma debug status: 0x25b4 > mmc2: sdhci-esdhc-imx: fifo debug status: 0x2610 > mmc2: sdhci-esdhc-imx: async fifo debug status: 0x2751 > mmc2: sdhci: ============================================ > > The mmc2 interface is connected to an SDIO Wifi chip. > > This irq timeout occurs very rarely. > > Any suggestions on how to debug this? Hi Fabio, According to the log, ADMA Err: 0x00000007, seems meet ADMA length miss match issue, please double check whether the following patch is on your side: commit e30be063d6dbcc0f18b1eb25fa709fdef89201fb mmc: sdhci-esdhc-imx: correct the fix of ERR004536 also please add the following patch for suspend/resume case commit a26a4f1baca55a05aecd8d7181802979a93e3d46 mmc: sdhci-esdhci-imx: retune needed for Mega/Mix enabled SoCs Best Regards Haibo Chen > > Thanks, > > Fabio Estevam
