+ Shawn, Liming, Yifeng,
On Fri, 22 Nov 2024 at 08:09, Pankaj Pandey <pankaj.embedded@xxxxxxxxx> wrote:
>
> Hi Ulf,
>
> Tried in linux-6.12 but observed same issue there also:
>
> =========================================================
> devkit-e7 login: mmc0: Timeout waiting for hardware cmd interrupt.
> mmc0: sdhci: ============ SDHCI REGISTER DUMP ===========
> mmc0: sdhci: Sys addr: 0x00000000 | Version: 0x00000005
> mmc0: sdhci: Blk size: 0x00000000 | Blk cnt: 0x00000000
> mmc0: sdhci: Argument: 0x00000c00 | Trn mode: 0x00000000
> mmc0: sdhci: Present: 0x03ff0000 | Host ctl: 0x00000001
> mmc0: sdhci: Power: 0x0000000f | Blk gap: 0x00000000
> mmc0: sdhci: Wake-up: 0x00000000 | Clock: 0x0000fa07
> mmc0: sdhci: Timeout: 0x00000000 | Int stat: 0x00000000
> mmc0: sdhci: Int enab: 0x00ff1003 | Sig enab: 0x00ff1003
> mmc0: sdhci: ACmd stat: 0x00000000 | Slot int: 0x00000000
> mmc0: sdhci: Caps: 0x276e648a | Caps_1: 0x08008071
> mmc0: sdhci: Cmd: 0x0000341a | Max curr: 0x00000000
> mmc0: sdhci: Resp[0]: 0x00000000 | Resp[1]: 0x00000000
> mmc0: sdhci: Resp[2]: 0x00000000 | Resp[3]: 0x00000000
> mmc0: sdhci: Host ctl2: 0x00000000
> mmc0: sdhci: ADMA Err: 0x00000000 | ADMA Ptr: 0x00000000
> mmc0: sdhci: ============================================
> mmc0: Reset 0x2 never completed.
> =======================================================
>
> Regards,
> Pankaj Pandey
Thanks Pankaj,
It's not entirely easy to tell what goes wrong - and a lot of changes
have happened since v5.4.
I guess a git bisect would help us to narrow down when things got
screwed up. If you have the time to do that, that would greatly help I
think.
I have looped in some more of the driver authors to see if someone has
an idea where to start looking.
In the meantime, it would be useful to get some more information about
your platform and a pointer to some DTS files.
Kind regards
Uffe
>
> On Wed, Nov 20, 2024 at 6:34 PM Ulf Hansson <ulf.hansson@xxxxxxxxxx> wrote:
> >
> > On Wed, 20 Nov 2024 at 09:28, Pankaj Pandey <pankaj.embedded@xxxxxxxxx> wrote:
> > >
> > > Hi All,
> > >
> > > My target board(ARMv8-A AArch32 processor), supports the "Synopsys DWC
> > > MSHC controller." I am using the Linux 5.4 kernel and have enabled the
> > > following configurations to support the "SDHCI platform driver for
> > > Synopsys DWC MSHC":
> > >
> > > CONFIG_MMC_SDHCI=y
> > > CONFIG_MMC_SDHCI_PLTFM=y
> > > CONFIG_MMC_SDHCI_OF_DWCMSHC=y
> > >
> > > This setup works perfectly on Linux 5.4, successfully detecting all
> > > microSD cards. However, when I use the same driver configuration with
> > > Linux 6.11.0, I encounter the below mentioned error:
> > >
> > > sdhci: Secure Digital Host Controller Interface driver
> > > sdhci: Copyright(c) Pierre Ossman
> > > sdhci-pltfm: SDHCI platform and OF driver helper
> > > mmc0: sdhci: Version: 0x00000005 | Present: 0x020f0000
> > > mmc0: sdhci: Caps: 0x276e648a | Caps_1: 0x08008071
> > > SMCCC: SOC_ID: ARCH_SOC_ID not implemented, skipping ....
> > > mmc0: sdhci: Auto-CMD23 available
> > > mmc0: SDHCI controller on 48102000.sdhci [48102000.sdhci] using ADMA
> > > mmc0: Timeout waiting for hardware cmd interrupt.
> > > mmc0: sdhci: ============ SDHCI REGISTER DUMP ===========
> > > mmc0: sdhci: Sys addr: 0x00000000 | Version: 0x00000005
> > > mmc0: sdhci: Blk size: 0x00000000 | Blk cnt: 0x00000000
> > > mmc0: sdhci: Argument: 0x00000c00 | Trn mode: 0x00000000
> > > mmc0: sdhci: Present: 0x020f0000 | Host ctl: 0x00000001
> > > mmc0: sdhci: Power: 0x0000000f | Blk gap: 0x00000000
> > > mmc0: sdhci: Wake-up: 0x00000000 | Clock: 0x0000fa07
> > > mmc0: sdhci: Timeout: 0x00000000 | Int stat: 0x00000000
> > > mmc0: sdhci: Int enab: 0x00ff1083 | Sig enab: 0x00ff1083
> > > mmc0: sdhci: ACmd stat: 0x00000000 | Slot int: 0x00000000
> > > mmc0: sdhci: Caps: 0x276e648a | Caps_1: 0x08008071
> > > mmc0: sdhci: Cmd: 0x0000341a | Max curr: 0x00000000
> > > mmc0: sdhci: Resp[0]: 0x00000000 | Resp[1]: 0x00000000
> > > mmc0: sdhci: Resp[2]: 0x00000000 | Resp[3]: 0x00000000
> > > mmc0: sdhci: Host ctl2: 0x00000000
> > > mmc0: sdhci: ADMA Err: 0x00000000 | ADMA Ptr: 0x00000000
> > > mmc0: sdhci: ============================================
> > > mmc0: Reset 0x2 never completed.
> > >
> > > =====================================================
> > >
> > > Please find mmc debug info and dts file changes for references:-
> > >
> > > root@devkit-e7:~# cat /sys/kernel/debug/mmc0/ios
> > > clock: 400000 Hz
> > > actual clock: 400000 Hz
> > > vdd: 21 (3.3 ~ 3.4 V)
> > > bus mode: 2 (push-pull)
> > > chip select: 1 (active high)
> > > power mode: 2 (on)
> > > bus width: 0 (1 bits)
> > > timing spec: 0 (legacy)
> > > signal voltage: 0 (3.30 V)
> > > driver type: 0 (driver type B)
> > >
> > > sdmmc: sdhci@48102000 {
> > > compatible = "snps,dwcmshc-sdhci";
> > > reg = <0x48102000 0x1000>;
> > > interrupts = <GIC_SPI 27 IRQ_TYPE_LEVEL_HIGH>,
> > > <GIC_SPI 28 IRQ_TYPE_LEVEL_HIGH>;
> > > clocks = <&syst_hclk>, <&syst_hclk>;
> > > clock-names = "core", "bus";
> > > bus-width = <4>;
> > > max-frequency = <25000000>;
> > > status = "okay";
> > > };
> > >
> > > Kindly request you to please let me know if I am missing anything.
> >
> > Would it be possible for you to do a "git bisect" to see if we can
> > find if there is a particular commit causing the problem?
> >
> > Moreover, we have v6.12 now, so it seems reasonable to give that a try too.
> >
> > Kind regards
> > Uffe
