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b77544280c
Tegra CQHCI/SDHCI design prevents write access to SDHCI block size register when CQE is enabled and unhalted. CQHCI driver enables CQE prior to invoking sdhci_cqe_enable which violates this Tegra specific host requirement. This patch fixes this by configuring sdhci block registers prior to CQE unhalt. This patch also has a fix for retry of unhalt due to known Tegra specific CQE resume bug where first unhalt might not succeed when clear all tasks is performed prior to resume and need a second unhalt. This patch also includes CQE enable fix for CMD CRC errors that happen with the specific sandisk emmc device when status command is sent during the transfer of last data block due to marginal timing. Tested-by: Jon Hunter <jonathanh@nvidia.com> Acked-by: Adrian Hunter <adrian.hunter@intel.com> Signed-off-by: Sowjanya Komatineni <skomatineni@nvidia.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> |
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