On 5/03/19 4:59 AM, Yinbo Zhu wrote: > From: Yinbo Zhu <yinbo.zhu@xxxxxxx> > > 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@xxxxxxx> Acked-by: Adrian Hunter <adrian.hunter@xxxxxxxxx> > --- > 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 4e669b4..9da53e5 100644 > --- a/drivers/mmc/host/sdhci-of-esdhc.c > +++ b/drivers/mmc/host/sdhci-of-esdhc.c > @@ -1074,6 +1074,9 @@ 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") || >
