diff options
| author | Yinbo Zhu <yinbo.zhu@nxp.com> | 2019-03-11 05:16:36 +0300 |
|---|---|---|
| committer | Ulf Hansson <ulf.hansson@linaro.org> | 2019-04-15 12:55:54 +0300 |
| commit | a46e42712596b51874f04c73f1cdf1017f88df52 (patch) | |
| tree | f8dc1f4e2aa1276f78cd0fe2c42942086bc84934 /drivers/mmc | |
| parent | 8e9a6919939b8c3bf1bd7cb00cf6c5c7890b4424 (diff) | |
| download | linux-a46e42712596b51874f04c73f1cdf1017f88df52.tar.xz | |
mmc: sdhci-of-esdhc: add erratum eSDHC5 support
Software writing to the Transfer Type configuration register
(system clock domain) can cause a setup/hold violation in the
CRC flops (card clock domain), which can cause write accesses
to be sent with corrupt CRC values. This issue occurs only for
write preceded by read. this erratum is to fix this issue.
Signed-off-by: Yinbo Zhu <yinbo.zhu@nxp.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Diffstat (limited to 'drivers/mmc')
| -rw-r--r-- | drivers/mmc/host/sdhci-of-esdhc.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/mmc/host/sdhci-of-esdhc.c b/drivers/mmc/host/sdhci-of-esdhc.c index e8cb7a92b9e6..b3310ea90231 100644 --- a/drivers/mmc/host/sdhci-of-esdhc.c +++ b/drivers/mmc/host/sdhci-of-esdhc.c @@ -1075,6 +1075,9 @@ static int sdhci_esdhc_probe(struct platform_device *pdev) if (esdhc->vendor_ver > VENDOR_V_22) host->quirks &= ~SDHCI_QUIRK_NO_BUSY_IRQ; + if (of_find_compatible_node(NULL, NULL, "fsl,p2020-esdhc")) + host->quirks2 |= SDHCI_QUIRK_RESET_AFTER_REQUEST; + if (of_device_is_compatible(np, "fsl,p5040-esdhc") || of_device_is_compatible(np, "fsl,p5020-esdhc") || of_device_is_compatible(np, "fsl,p4080-esdhc") || |