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H A D | sdhci-pxav2.c | 7f7a201a Mon Jan 16 13:43:56 CST 2023 Doug Brown <doug@schmorgal.com> mmc: sdhci-pxav2: add register workaround for PXA168 silicon bug
The PXA168 has a documented silicon bug that results in a data abort exception when accessing the SDHCI_HOST_VERSION register on SDH2 and SDH4 through a 16-bit read. Implement the workaround described in the errata, which performs a 32-bit read from a lower address instead. This is safe to use on all four SDH peripherals.
Signed-off-by: Doug Brown <doug@schmorgal.com> Acked-by: Adrian Hunter <adrian.hunter@intel.com> Link: https://lore.kernel.org/r/20230116194401.20372-4-doug@schmorgal.com Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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