diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/mmc/host/sdhci.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c index e761fe2aa99e..1d72a51287d4 100644 --- a/drivers/mmc/host/sdhci.c +++ b/drivers/mmc/host/sdhci.c @@ -2095,7 +2095,27 @@ static int sdhci_execute_tuning(struct mmc_host *mmc, u32 opcode) ctrl &= ~SDHCI_CTRL_EXEC_TUNING; sdhci_writew(host, ctrl, SDHCI_HOST_CONTROL2); + sdhci_do_reset(host, SDHCI_RESET_CMD); + sdhci_do_reset(host, SDHCI_RESET_DATA); + err = -EIO; + + if (cmd.opcode != MMC_SEND_TUNING_BLOCK_HS200) + goto out; + + sdhci_writel(host, host->ier, SDHCI_INT_ENABLE); + sdhci_writel(host, host->ier, SDHCI_SIGNAL_ENABLE); + + spin_unlock_irqrestore(&host->lock, flags); + + memset(&cmd, 0, sizeof(cmd)); + cmd.opcode = MMC_STOP_TRANSMISSION; + cmd.flags = MMC_RSP_SPI_R1B | MMC_RSP_R1B | MMC_CMD_AC; + cmd.busy_timeout = 50; + mmc_wait_for_cmd(mmc, &cmd, 0); + + spin_lock_irqsave(&host->lock, flags); + goto out; } |