On Fri, May 25, 2018 at 08:10:47PM -0700, John Stultz wrote: > This patch is a partial revert of commit > abd7d0972a19 ("arm64: dts: hikey: Enable HS200 mode on eMMC") > > which has been causing eMMC corruption on my HiKey board. > > Symptoms usually looked like: > > mmc_host mmc0: Bus speed (slot 0) = 24800000Hz (slot req 400000Hz, actual > 400000HZ div = 31) > ... > mmc_host mmc0: Bus speed (slot 0) = 148800000Hz (slot req 150000000Hz, actual > 148800000HZ div = 0) > mmc0: new HS200 MMC card at address 0001 > ... > dwmmc_k3 f723d000.dwmmc0: Unexpected command timeout, state 3 > mmc_host mmc0: Bus speed (slot 0) = 24800000Hz (slot req 400000Hz, actual > 400000HZ div = 31) > mmc_host mmc0: Bus speed (slot 0) = 148800000Hz (slot req 150000000Hz, actual > 148800000HZ div = 0) > mmc_host mmc0: Bus speed (slot 0) = 24800000Hz (slot req 400000Hz, actual > 400000HZ div = 31) > mmc_host mmc0: Bus speed (slot 0) = 148800000Hz (slot req 150000000Hz, actual > 148800000HZ div = 0) > mmc_host mmc0: Bus speed (slot 0) = 24800000Hz (slot req 400000Hz, actual > 400000HZ div = 31) > mmc_host mmc0: Bus speed (slot 0) = 148800000Hz (slot req 150000000Hz, actual > 148800000HZ div = 0) > print_req_error: I/O error, dev mmcblk0, sector 8810504 > Aborting journal on device mmcblk0p10-8. > mmc_host mmc0: Bus speed (slot 0) = 24800000Hz (slot req 400000Hz, actual > 400000HZ div = 31) > mmc_host mmc0: Bus speed (slot 0) = 148800000Hz (slot req 150000000Hz, actual > 148800000HZ div = 0) > mmc_host mmc0: Bus speed (slot 0) = 24800000Hz (slot req 400000Hz, actual > 400000HZ div = 31) > mmc_host mmc0: Bus speed (slot 0) = 148800000Hz (slot req 150000000Hz, actual > 148800000HZ div = 0) > mmc_host mmc0: Bus speed (slot 0) = 24800000Hz (slot req 400000Hz, actual > 400000HZ div = 31) > mmc_host mmc0: Bus speed (slot 0) = 148800000Hz (slot req 150000000Hz, actual > 148800000HZ div = 0) > mmc_host mmc0: Bus speed (slot 0) = 24800000Hz (slot req 400000Hz, actual > 400000HZ div = 31) > mmc_host mmc0: Bus speed (slot 0) = 148800000Hz (slot req 150000000Hz, actual > 148800000HZ div = 0) > EXT4-fs error (device mmcblk0p10): ext4_journal_check_start:61: Detected > aborted journal > EXT4-fs (mmcblk0p10): Remounting filesystem read-only > > And quite often this would result in a disk that wouldn't properly > boot even with older kernels.
I tested this patch on the kernel 4.17.0-rc5, I don't see booting issue with this patch. Tested-by: Leo Yan <leo....@linaro.org> > It seems the max-frequency property added by the above patch is > causing the problem, so remove it. Should Cc this patch to stable kernel mailing list as fixing? > Cc: Ryan Grachek <r...@edited.us> > Cc: Wei Xu <xuw...@hisilicon.com> > Cc: Arnd Bergmann <a...@arndb.de> > Cc: Ulf Hansson <ulf.hans...@linaro.org> > Cc: YongQin Liu <yongqin....@linaro.org> > Cc: Leo Yan <leo....@linaro.org> > Signed-off-by: John Stultz <john.stu...@linaro.org> > --- > arch/arm64/boot/dts/hisilicon/hi6220-hikey.dts | 1 - > 1 file changed, 1 deletion(-) > > diff --git a/arch/arm64/boot/dts/hisilicon/hi6220-hikey.dts > b/arch/arm64/boot/dts/hisilicon/hi6220-hikey.dts > index 724a0d3..edb4ee0 100644 > --- a/arch/arm64/boot/dts/hisilicon/hi6220-hikey.dts > +++ b/arch/arm64/boot/dts/hisilicon/hi6220-hikey.dts > @@ -299,7 +299,6 @@ > /* GPIO blocks 16 thru 19 do not appear to be routed to pins */ > > dwmmc_0: dwmmc0@f723d000 { > - max-frequency = <150000000>; > cap-mmc-highspeed; > mmc-hs200-1_8v; > non-removable; > -- > 2.7.4 >