Commits
Yinbo Zhu committed 019ca0bf8d9
mmc: sdhci-of-esdhc: add erratum A-009204 support [ Upstream commit 5dd195522562542bc6ebe6e7bd47890d8b7ca93c ] In the event of that any data error (like, IRQSTAT[DCE]) occurs during an eSDHC data transaction where DMA is used for data transfer to/from the system memory, setting the SYSCTL[RSTD] register may cause a system hang. If software sets the register SYSCTL[RSTD] to 1 for error recovery while DMA transferring is not complete, eSDHC may hang the system bus. This happens because the software register SYSCTL[RSTD] resets the DMA engine without waiting for the completion of pending system transactions. 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> Signed-off-by: Sasha Levin <sashal@kernel.org>