Subject: Re: [REGRESSION] sdhci no longer detects SD cards on LX2160A

From: Russell King - ARM Linux admin <[email-masked]>
Date: Mon, 16 Sep 2019 23:57:54 +0100

The problem below seems to be sporadic with v5.3, which makes finding
its cause quite difficult - and makes bisecting useless.  I'd describe
it as "likely" to affect either mmc0 or mmc1 on v5.3.  I haven't seen
it at all with v5.2.

I'll see whether I can pin anything down tomorrow.

On Mon, Sep 16, 2019 at 06:15:10PM +0100, Russell King - ARM Linux admin wrote:
> Hi,
> 
> It seems that somewhere between v5.2 and v5.3, sdhci fails to detect
> SD cards on the NXP LX2160A, but continues to work with eMMC.
> This uses the sdhci-esdhc driver.
> 
> v5.2:
> 
> sdhci: Secure Digital Host Controller Interface driver
> sdhci: Copyright(c) Pierre Ossman
> sdhci-pltfm: SDHCI platform and OF driver helper
> mmc0: SDHCI controller on 2140000.esdhc [2140000.esdhc] using ADMA 64-bit
> mmc1: SDHCI controller on 2150000.esdhc [2150000.esdhc] using ADMA 64-bit
> mmc0: new high speed SDHC card at address aaaa
> mmcblk0: mmc0:aaaa SU04G 3.69 GiB
> mmc1: new HS400 MMC card at address 0001
> mmcblk1: mmc1:0001 DF4064 58.2 GiB
> mmcblk1boot0: mmc1:0001 DF4064 partition 1 4.00 MiB
> mmcblk1boot1: mmc1:0001 DF4064 partition 2 4.00 MiB
> mmcblk1rpmb: mmc1:0001 DF4064 partition 3 4.00 MiB, chardev (247:0)
>  mmcblk1: p1
> 
> v5.3:
> 
> sdhci: Secure Digital Host Controller Interface driver
> sdhci: Copyright(c) Pierre Ossman
> sdhci-pltfm: SDHCI platform and OF driver helper
> mmc0: SDHCI controller on 2140000.esdhc [2140000.esdhc] using ADMA 64-bit
> mmc1: SDHCI controller on 2150000.esdhc [2150000.esdhc] using ADMA 64-bit
> mmc0: ADMA error
> mmc0: sdhci: ============ SDHCI REGISTER DUMP ===========
> mmc0: sdhci: Sys addr:  0x00000000 | Version:  0x00002202
> mmc0: sdhci: Blk size:  0x00000008 | Blk cnt:  0x00000001
> mmc0: sdhci: Argument:  0x00000000 | Trn mode: 0x00000013
> mmc0: sdhci: Present:   0x01f50008 | Host ctl: 0x00000038
> mmc0: sdhci: Power:     0x00000003 | Blk gap:  0x00000000
> mmc0: sdhci: Wake-up:   0x00000000 | Clock:    0x000040d8
> mmc0: sdhci: Timeout:   0x00000003 | Int stat: 0x00000001
> mmc0: sdhci: Int enab:  0x037f108f | Sig enab: 0x037f108b
> mmc0: sdhci: ACmd stat: 0x00000000 | Slot int: 0x00002202
> mmc0: sdhci: Caps:      0x35fa0000 | Caps_1:   0x0000af00
> mmc0: sdhci: Cmd:       0x0000333a | Max curr: 0x00000000
> mmc0: sdhci: Resp[0]:   0x00000920 | Resp[1]:  0x001d8a33
> mmc0: sdhci: Resp[2]:   0x325b5900 | Resp[3]:  0x3f400e00
> mmc0: sdhci: Host ctl2: 0x00000000
> mmc0: sdhci: ADMA Err:  0x00000009 | ADMA Ptr: 0x000000236d43820c
> mmc0: sdhci: ============================================
> mmc0: error -5 whilst initialising SD card
> mmc0: ADMA error
> mmc0: sdhci: ============ SDHCI REGISTER DUMP ===========
> mmc0: sdhci: Sys addr:  0x00000000 | Version:  0x00002202
> mmc0: sdhci: Blk size:  0x00000008 | Blk cnt:  0x00000001
> mmc0: sdhci: Argument:  0x00000000 | Trn mode: 0x00000013
> mmc0: sdhci: Present:   0x01f50008 | Host ctl: 0x00000038
> mmc0: sdhci: Power:     0x00000003 | Blk gap:  0x00000000
> mmc0: sdhci: Wake-up:   0x00000000 | Clock:    0x00008098
> mmc0: sdhci: Timeout:   0x00000002 | Int stat: 0x00000001
> mmc0: sdhci: Int enab:  0x037f108f | Sig enab: 0x037f108b
> mmc0: sdhci: ACmd stat: 0x00000000 | Slot int: 0x00002202
> mmc0: sdhci: Caps:      0x35fa0000 | Caps_1:   0x0000af00
> mmc0: sdhci: Cmd:       0x0000333a | Max curr: 0x00000000
> mmc0: sdhci: Resp[0]:   0x00000920 | Resp[1]:  0x001d8a33
> mmc0: sdhci: Resp[2]:   0x325b5900 | Resp[3]:  0x3f400e00
> mmc0: sdhci: Host ctl2: 0x00000000
> mmc0: sdhci: ADMA Err:  0x00000009 | ADMA Ptr: 0x000000236d43820c
> mmc0: sdhci: ============================================
> mmc0: error -5 whilst initialising SD card
> mmc1: new HS400 MMC card at address 0001
> mmcblk1: mmc1:0001 DF4064 58.2 GiB
> mmcblk1boot0: mmc1:0001 DF4064 partition 1 4.00 MiB
> mmcblk1boot1: mmc1:0001 DF4064 partition 2 4.00 MiB
> mmcblk1rpmb: mmc1:0001 DF4064 partition 3 4.00 MiB, chardev (247:0)
>  mmcblk1: p1
> mmc0: ADMA error
> mmc0: sdhci: ============ SDHCI REGISTER DUMP ===========
> mmc0: sdhci: Sys addr:  0x00000000 | Version:  0x00002202
> mmc0: sdhci: Blk size:  0x00000008 | Blk cnt:  0x00000001
> mmc0: sdhci: Argument:  0x00000000 | Trn mode: 0x00000013
> mmc0: sdhci: Present:   0x01f50008 | Host ctl: 0x00000038
> mmc0: sdhci: Power:     0x00000003 | Blk gap:  0x00000000
> mmc0: sdhci: Wake-up:   0x00000000 | Clock:    0x000080d8
> mmc0: sdhci: Timeout:   0x00000002 | Int stat: 0x00000001
> mmc0: sdhci: Int enab:  0x037f108f | Sig enab: 0x037f108b
> mmc0: sdhci: ACmd stat: 0x00000000 | Slot int: 0x00002202
> mmc0: sdhci: Caps:      0x35fa0000 | Caps_1:   0x0000af00
> mmc0: sdhci: Cmd:       0x0000333a | Max curr: 0x00000000
> mmc0: sdhci: Resp[0]:   0x00000920 | Resp[1]:  0x001d8a33
> mmc0: sdhci: Resp[2]:   0x325b5900 | Resp[3]:  0x3f400e00
> mmc0: sdhci: Host ctl2: 0x00000000
> mmc0: sdhci: ADMA Err:  0x00000009 | ADMA Ptr: 0x000000236d43820c
> mmc0: sdhci: ============================================
> mmc0: error -5 whilst initialising SD card
> mmc0: ADMA error
> mmc0: sdhci: ============ SDHCI REGISTER DUMP ===========
> mmc0: sdhci: Sys addr:  0x00000000 | Version:  0x00002202
> mmc0: sdhci: Blk size:  0x00000008 | Blk cnt:  0x00000001
> mmc0: sdhci: Argument:  0x00000000 | Trn mode: 0x00000013
> mmc0: sdhci: Present:   0x01f50008 | Host ctl: 0x00000038
> mmc0: sdhci: Power:     0x00000003 | Blk gap:  0x00000000
> mmc0: sdhci: Wake-up:   0x00000000 | Clock:    0x000080f8
> mmc0: sdhci: Timeout:   0x00000002 | Int stat: 0x00000001
> mmc0: sdhci: Int enab:  0x037f108f | Sig enab: 0x037f108b
> mmc0: sdhci: ACmd stat: 0x00000000 | Slot int: 0x00002202
> mmc0: sdhci: Caps:      0x35fa0000 | Caps_1:   0x0000af00
> mmc0: sdhci: Cmd:       0x0000333a | Max curr: 0x00000000
> mmc0: sdhci: Resp[0]:   0x00000920 | Resp[1]:  0x001d8a33
> mmc0: sdhci: Resp[2]:   0x325b5900 | Resp[3]:  0x3f400e00
> mmc0: sdhci: Host ctl2: 0x00000000
> mmc0: sdhci: ADMA Err:  0x00000009 | ADMA Ptr: 0x000000236d43820c
> mmc0: sdhci: ============================================
> mmc0: error -5 whilst initialising SD card
> 
> The platform has an iommu, which is in pass-through mode, via
> arm_smmu.disable_bypass=0.
> 
> -- 
> RMK's Patch system: https://www.armlinux.org.uk/developer/patches/
> FTTC broadband for 0.8mile line in suburbia: sync at 12.1Mbps down 622kbps up
> According to speedtest.net: 11.9Mbps down 500kbps up
> 
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> 

-- 
RMK's Patch system: https://www.armlinux.org.uk/developer/patches/
FTTC broadband for 0.8mile line in suburbia: sync at 12.1Mbps down 622kbps up
According to speedtest.net: 11.9Mbps down 500kbps up

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