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2bd1d2dd80
linux/arch/arm64
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Christopher Obbard 2bd1d2dd80 arm64: dts: rockchip: Disable HS400 for eMMC on ROCK 4C+ 
There is some instablity with some eMMC modules on ROCK Pi 4 SBCs running
in HS400 mode. This ends up resulting in some block errors after a while
or after a "heavy" operation utilising the eMMC (e.g. resizing a
filesystem). An example of these errors is as follows:

    [  289.171014] mmc1: running CQE recovery
    [  290.048972] mmc1: running CQE recovery
    [  290.054834] mmc1: running CQE recovery
    [  290.060817] mmc1: running CQE recovery
    [  290.061337] blk_update_request: I/O error, dev mmcblk1, sector 1411072 op 0x1:(WRITE) flags 0x800 phys_seg 36 prio class 0
    [  290.061370] EXT4-fs warning (device mmcblk1p1): ext4_end_bio:348: I/O error 10 writing to inode 29547 starting block 176466)
    [  290.061484] Buffer I/O error on device mmcblk1p1, logical block 172288
    [  290.061531] Buffer I/O error on device mmcblk1p1, logical block 172289
    [  290.061551] Buffer I/O error on device mmcblk1p1, logical block 172290
    [  290.061574] Buffer I/O error on device mmcblk1p1, logical block 172291
    [  290.061592] Buffer I/O error on device mmcblk1p1, logical block 172292
    [  290.061615] Buffer I/O error on device mmcblk1p1, logical block 172293
    [  290.061632] Buffer I/O error on device mmcblk1p1, logical block 172294
    [  290.061654] Buffer I/O error on device mmcblk1p1, logical block 172295
    [  290.061673] Buffer I/O error on device mmcblk1p1, logical block 172296
    [  290.061695] Buffer I/O error on device mmcblk1p1, logical block 172297

Disabling the Command Queue seems to stop the CQE recovery from running,
but doesn't seem to improve the I/O errors. Until this can be investigated
further, disable HS400 mode on the ROCK Pi 4 SBCs to at least stop I/O
errors from occurring.

Fixes: 246450344d ("arm64: dts: rockchip: rk3399: Radxa ROCK 4C+")
Signed-off-by: Christopher Obbard <chris.obbard@collabora.com>
Link: https://lore.kernel.org/r/20230705144255.115299-3-chris.obbard@collabora.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2023-07-10 15:43:24 +02:00
..
boot arm64: dts: rockchip: Disable HS400 for eMMC on ROCK 4C+ 2023-07-10 15:43:24 +02:00
configs ARM: SoC defconfig changes for 6.5 2023-06-29 15:26:45 -07:00
crypto crypto: arm64/sha256-glue - Include module.h 2023-05-19 20:56:59 +08:00
hyperv arm64/hyperv: Use CPUHP_AP_HYPERV_ONLINE state to fix CPU online sequencing 2023-06-17 23:09:47 +00:00
include asm-generic updates for 6.5 2023-07-06 10:06:04 -07:00
kernel Tracing fixes for 6.5: 2023-07-06 19:07:15 -07:00
kvm ARM64: 2023-07-03 15:32:22 -07:00
lib arm64: xor-neon: mark xor_arm64_neon_*() static 2023-05-25 17:44:01 +01:00
mm arch/arm64/mm/fault: Fix undeclared variable error in do_page_fault() 2023-07-03 19:04:32 -07:00
net bpf, arm64: Support struct arguments in the BPF trampoline 2023-05-15 21:17:22 +02:00
tools ARM64: 2023-07-03 15:32:22 -07:00
xen
Kbuild
Kconfig ARM64: 2023-07-03 15:32:22 -07:00
Kconfig.debug
Kconfig.platforms STM32 STM32MP25 for v6.5, round 1 2023-06-20 22:28:44 +02:00
Makefile arm64 updates for 6.3: 2023-02-21 15:27:48 -08:00