Commit 84a16320 authored by Yinbo Zhu's avatar Yinbo Zhu Committed by Greg Kroah-Hartman

mmc: sdhci-of-esdhc: add erratum eSDHC5 support

[ Upstream commit a46e4271 ]

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: default avatarYinbo Zhu <yinbo.zhu@nxp.com>
Acked-by: default avatarAdrian Hunter <adrian.hunter@intel.com>
Signed-off-by: default avatarUlf Hansson <ulf.hansson@linaro.org>
Signed-off-by: default avatarSasha Levin <sashal@kernel.org>
parent cb1962ff
...@@ -636,6 +636,9 @@ static int sdhci_esdhc_probe(struct platform_device *pdev) ...@@ -636,6 +636,9 @@ static int sdhci_esdhc_probe(struct platform_device *pdev)
if (esdhc->vendor_ver > VENDOR_V_22) if (esdhc->vendor_ver > VENDOR_V_22)
host->quirks &= ~SDHCI_QUIRK_NO_BUSY_IRQ; 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") || if (of_device_is_compatible(np, "fsl,p5040-esdhc") ||
of_device_is_compatible(np, "fsl,p5020-esdhc") || of_device_is_compatible(np, "fsl,p5020-esdhc") ||
of_device_is_compatible(np, "fsl,p4080-esdhc") || of_device_is_compatible(np, "fsl,p4080-esdhc") ||
......
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