> -----Original Message----- > From: Tim Harvey [mailto:tharvey@xxxxxxxxxxxxx] > Sent: 2021年11月4日 0:54 > To: Adrian Hunter <adrian.hunter@xxxxxxxxx>; Ulf Hansson > <ulf.hansson@xxxxxxxxxx>; Shawn Guo <shawnguo@xxxxxxxxxx>; Sascha Hauer > <s.hauer@xxxxxxxxxxxxxx>; Pengutronix Kernel Team > <kernel@xxxxxxxxxxxxxx>; Fabio Estevam <festevam@xxxxxxxxx>; > dl-linux-imx <linux-imx@xxxxxxx>; Bough Chen <haibo.chen@xxxxxxx>; > linux-mmc@xxxxxxxxxxxxxxx; Marcel Ziswiler <marcel@xxxxxxxxxxxx>; > Schrempf Frieder <frieder.schrempf@xxxxxxxxxx>; Adam Ford > <aford173@xxxxxxxxx>; Lucas Stach <l.stach@xxxxxxxxxxxxxx>; Peng Fan > <peng.fan@xxxxxxx> > Cc: tharvey@xxxxxxxxxxxxx; stable@xxxxxxxxxxxxxxx > Subject: [PATCH] mmc: sdhci-esdhc-imx: disable CMDQ support > > On IMX SoC's which support CMDQ the following can occur during high a high > cpu load: > > mmc2: cqhci: ============ CQHCI REGISTER DUMP =========== > mmc2: cqhci: Caps: 0x0000310a | Version: 0x00000510 > mmc2: cqhci: Config: 0x00001001 | Control: 0x00000000 > mmc2: cqhci: Int stat: 0x00000000 | Int enab: 0x00000006 > mmc2: cqhci: Int sig: 0x00000006 | Int Coal: 0x00000000 > mmc2: cqhci: TDL base: 0x8003f000 | TDL up32: 0x00000000 > mmc2: cqhci: Doorbell: 0xbf01dfff | TCN: 0x00000000 > mmc2: cqhci: Dev queue: 0x00000000 | Dev Pend: 0x08000000 > mmc2: cqhci: Task clr: 0x00000000 | SSC1: 0x00011000 > mmc2: cqhci: SSC2: 0x00000001 | DCMD rsp: 0x00000800 > mmc2: cqhci: RED mask: 0xfdf9a080 | TERRI: 0x00000000 > mmc2: cqhci: Resp idx: 0x0000000d | Resp arg: 0x00000000 > mmc2: sdhci: ============ SDHCI REGISTER DUMP =========== > mmc2: sdhci: Sys addr: 0x7c722000 | Version: 0x00000002 > mmc2: sdhci: Blk size: 0x00000200 | Blk cnt: 0x00000020 > mmc2: sdhci: Argument: 0x00018000 | Trn mode: 0x00000023 > mmc2: sdhci: Present: 0x01f88008 | Host ctl: 0x00000030 > mmc2: sdhci: Power: 0x00000002 | Blk gap: 0x00000080 > mmc2: sdhci: Wake-up: 0x00000008 | Clock: 0x0000000f > mmc2: sdhci: Timeout: 0x0000008f | Int stat: 0x00000000 > mmc2: sdhci: Int enab: 0x107f4000 | Sig enab: 0x107f4000 > mmc2: sdhci: ACmd stat: 0x00000000 | Slot int: 0x00000502 > mmc2: sdhci: Caps: 0x07eb0000 | Caps_1: 0x8000b407 > mmc2: sdhci: Cmd: 0x00000d1a | Max curr: 0x00ffffff > mmc2: sdhci: Resp[0]: 0x00000000 | Resp[1]: 0xffc003ff > mmc2: sdhci: Resp[2]: 0x328f5903 | Resp[3]: 0x00d07f01 > mmc2: sdhci: Host ctl2: 0x00000088 > mmc2: sdhci: ADMA Err: 0x00000000 | ADMA Ptr: 0xfe179020 > mmc2: sdhci-esdhc-imx: ========= ESDHC IMX DEBUG STATUS DUMP ==== > mmc2: sdhci-esdhc-imx: cmd debug status: 0x2120 > mmc2: sdhci-esdhc-imx: data debug status: 0x2200 > mmc2: sdhci-esdhc-imx: trans debug status: 0x2300 > mmc2: sdhci-esdhc-imx: dma debug status: 0x2400 > mmc2: sdhci-esdhc-imx: adma debug status: 0x2510 > mmc2: sdhci-esdhc-imx: fifo debug status: 0x2680 > mmc2: sdhci-esdhc-imx: async fifo debug status: 0x2750 > mmc2: sdhci: ============================================ > > For now, disable CMDQ support on the imx8qm/imx8qxp/imx8mm until the > issue is found and resolved. > > Fixes: bb6e358169bf6 ("mmc: sdhci-esdhc-imx: add CMDQ support") > Fixes: cde5e8e9ff146 ("mmc: sdhci-esdhc-imx: Add an new esdhc_soc_data for > i.MX8MM") > > Cc: stable@xxxxxxxxxxxxxxx > Signed-off-by: Tim Harvey <tharvey@xxxxxxxxxxxxx> Reviewed-by: Haibo Chen <haibo.chen@xxxxxxx> Best Regards Haibo Chen > --- > drivers/mmc/host/sdhci-esdhc-imx.c | 2 -- > 1 file changed, 2 deletions(-) > > diff --git a/drivers/mmc/host/sdhci-esdhc-imx.c > b/drivers/mmc/host/sdhci-esdhc-imx.c > index e658f0174242..60f19369de84 100644 > --- a/drivers/mmc/host/sdhci-esdhc-imx.c > +++ b/drivers/mmc/host/sdhci-esdhc-imx.c > @@ -300,7 +300,6 @@ static struct esdhc_soc_data usdhc_imx8qxp_data = { > .flags = ESDHC_FLAG_USDHC | ESDHC_FLAG_STD_TUNING > | ESDHC_FLAG_HAVE_CAP1 | ESDHC_FLAG_HS200 > | ESDHC_FLAG_HS400 | ESDHC_FLAG_HS400_ES > - | ESDHC_FLAG_CQHCI > | ESDHC_FLAG_STATE_LOST_IN_LPMODE > | ESDHC_FLAG_CLK_RATE_LOST_IN_PM_RUNTIME, > }; > @@ -309,7 +308,6 @@ static struct esdhc_soc_data usdhc_imx8mm_data = { > .flags = ESDHC_FLAG_USDHC | ESDHC_FLAG_STD_TUNING > | ESDHC_FLAG_HAVE_CAP1 | ESDHC_FLAG_HS200 > | ESDHC_FLAG_HS400 | ESDHC_FLAG_HS400_ES > - | ESDHC_FLAG_CQHCI > | ESDHC_FLAG_STATE_LOST_IN_LPMODE, > }; > > -- > 2.17.1
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