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mmc: sdhci: Reset cmd and data circuits after tuning failure
To prevent subsequent commands failing, ensure the cmd and data circuits are reset after a tuning timeout. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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@ -2086,6 +2086,10 @@ static int sdhci_execute_tuning(struct mmc_host *mmc, u32 opcode)
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if (!host->tuning_done) {
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pr_info(DRIVER_NAME ": Timeout waiting for Buffer Read Ready interrupt during tuning procedure, falling back to fixed sampling clock\n");
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sdhci_do_reset(host, SDHCI_RESET_CMD);
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sdhci_do_reset(host, SDHCI_RESET_DATA);
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ctrl = sdhci_readw(host, SDHCI_HOST_CONTROL2);
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ctrl &= ~SDHCI_CTRL_TUNED_CLK;
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ctrl &= ~SDHCI_CTRL_EXEC_TUNING;
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