Add a tuning block setting callback to let host set its
tuning block before executing tuning procedure.
Signed-off-by: Yangbo Lu <yangbo...@freescale.com>
---
drivers/mmc/host/sdhci.c | 3 +++
drivers/mmc/host/sdhci.h | 1 +
2 files changed, 4 insertions(+)
diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c
index 9b3d4c2..9da4644 100644
--- a/drivers/mmc/host/sdhci.c
+++ b/drivers/mmc/host/sdhci.c
@@ -1939,6 +1939,9 @@ static int sdhci_execute_tuning(struct mmc_host *mmc, u32
opcode)
return err;
}
+ if (host->ops->set_tuning_block)
+ host->ops->set_tuning_block(host);
+
ctrl = sdhci_readw(host, SDHCI_HOST_CONTROL2);
ctrl |= SDHCI_CTRL_EXEC_TUNING;
if (host->quirks2 & SDHCI_QUIRK2_TUNING_WORK_AROUND)
diff --git a/drivers/mmc/host/sdhci.h b/drivers/mmc/host/sdhci.h
index 723f034..98f239b 100644
--- a/drivers/mmc/host/sdhci.h
+++ b/drivers/mmc/host/sdhci.h
@@ -546,6 +546,7 @@ struct sdhci_ops {
int card_drv, int *drv_type);
void (*signal_voltage_switch)(struct sdhci_host *host,
unsigned char signal_voltage);
+ void (*set_tuning_block)(struct sdhci_host *host);
};
#ifdef CONFIG_MMC_SDHCI_IO_ACCESSORS
--
2.1.0.27.g96db324
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