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mmc: sdhci: Add support for optional controller specific set_ios_post() 

Some SDHCI drivers might need to do some special controller configuration
after the common clock set_ios() function has been called (speed / width
configuration). This patch adds a call to the newly created function
set_ios_port() when its configured in the host driver.

This will be used by the Xenon SDHCI controller driver used on the
Marvell Armada 3700 and 7k/8k ARM64 SoCs.

Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Jaehoon Chung <jh80.chung@samsung.com>
Cc: Simon Glass <sjg@chromium.org>
Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com>
This commit is contained in:
Stefan Roese 2016-12-12 08:24:56 +01:00
parent 899fb9e352
commit 210841c690
2 changed files with 5 additions and 0 deletions
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4
drivers/mmc/sdhci.c
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@ -458,6 +458,10 @@ static int sdhci_set_ios(struct mmc *mmc)
sdhci_writeb(host, ctrl, SDHCI_HOST_CONTROL); sdhci_writeb(host, ctrl, SDHCI_HOST_CONTROL);
/* If available, call the driver specific "post" set_ios() function */
if (host->ops && host->ops->set_ios_post)
host->ops->set_ios_post(host);
return 0; return 0;
} }

1
include/sdhci.h
View File

@ -235,6 +235,7 @@ struct sdhci_ops {
#endif #endif
int (*get_cd)(struct sdhci_host *host); int (*get_cd)(struct sdhci_host *host);
void (*set_control_reg)(struct sdhci_host *host); void (*set_control_reg)(struct sdhci_host *host);
void (*set_ios_post)(struct sdhci_host *host);
void (*set_clock)(struct sdhci_host *host, u32 div); void (*set_clock)(struct sdhci_host *host, u32 div);
}; };