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| author | Daniel Drake <drake@endlessm.com> | 2019-09-05 12:55:57 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-09-19 09:10:55 +0200 |
| commit | e5b9762c20a3bfe4df13a0b989fb4e58f08020c2 (patch) | |
| tree | 9cbd7ae41ac0cc54401470d22c7cb50ac735b197 | |
| parent | 0699a10fe9edcaa174d1bdca186569f939302cc1 (diff) | |
| download | linux-stable-e5b9762c20a3bfe4df13a0b989fb4e58f08020c2.tar.gz linux-stable-e5b9762c20a3bfe4df13a0b989fb4e58f08020c2.tar.bz2 linux-stable-e5b9762c20a3bfe4df13a0b989fb4e58f08020c2.zip | |
Revert "mmc: sdhci: Remove unneeded quirk2 flag of O2 SD host controller"
commit 49baa01c8b99ef92958e18fb58ebeb5dfdcde8af upstream.
This reverts commit 414126f9e5abf1973c661d24229543a9458fa8ce.
This commit broke eMMC storage access on a new consumer MiniPC based on
AMD SoC, which has eMMC connected to:
02:00.0 SD Host controller: O2 Micro, Inc. Device 8620 (rev 01) (prog-if 01)
Subsystem: O2 Micro, Inc. Device 0002
During probe, several errors are seen including:
mmc1: Got data interrupt 0x02000000 even though no data operation was in progress.
mmc1: Timeout waiting for hardware interrupt.
mmc1: error -110 whilst initialising MMC card
Reverting this commit allows the eMMC storage to be detected & usable
again.
Signed-off-by: Daniel Drake <drake@endlessm.com>
Fixes: 414126f9e5ab ("mmc: sdhci: Remove unneeded quirk2 flag of O2 SD host
controller")
Cc: stable@vger.kernel.org # v5.1+
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/mmc/host/sdhci-pci-o2micro.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/mmc/host/sdhci-pci-o2micro.c b/drivers/mmc/host/sdhci-pci-o2micro.c index 9dc4548271b4..19944b0049db 100644 --- a/drivers/mmc/host/sdhci-pci-o2micro.c +++ b/drivers/mmc/host/sdhci-pci-o2micro.c @@ -432,7 +432,6 @@ int sdhci_pci_o2_probe_slot(struct sdhci_pci_slot *slot) mmc_hostname(host->mmc)); host->flags &= ~SDHCI_SIGNALING_330; host->flags |= SDHCI_SIGNALING_180; - host->quirks2 |= SDHCI_QUIRK2_CLEAR_TRANSFERMODE_REG_BEFORE_CMD; host->mmc->caps2 |= MMC_CAP2_NO_SD; host->mmc->caps2 |= MMC_CAP2_NO_SDIO; pci_write_config_dword(chip->pdev, @@ -682,6 +681,7 @@ static const struct sdhci_ops sdhci_pci_o2_ops = { const struct sdhci_pci_fixes sdhci_o2 = { .probe = sdhci_pci_o2_probe, .quirks = SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC, + .quirks2 = SDHCI_QUIRK2_CLEAR_TRANSFERMODE_REG_BEFORE_CMD, .probe_slot = sdhci_pci_o2_probe_slot, #ifdef CONFIG_PM_SLEEP .resume = sdhci_pci_o2_resume, |