diff options
| author | Thomas Abraham <thomas.abraham@linaro.org> | 2011-09-14 11:09:17 +0400 |
|---|---|---|
| committer | Chris Ball <cjb@laptop.org> | 2011-10-26 23:43:42 +0400 |
| commit | 6fe47179a07009ee3ee7c8b962966fee420becc8 (patch) | |
| tree | 1d5cff166a8ce97c25ff6bd0059aadca0b6b9dc4 /drivers/mmc/host/sdhci-s3c.c | |
| parent | 041beb1d531f538bf62377e2ca2b4ecbaa479d75 (diff) | |
| download | linux-6fe47179a07009ee3ee7c8b962966fee420becc8.tar.xz | |
mmc: sdhci-s3c: add default controller configuration
The default controller configuration which was previously setup by
platform helper functions is moved into the driver.
Cc: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org>
Acked-by: Kukjin Kim <kgene.kim@samsung.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
Diffstat (limited to 'drivers/mmc/host/sdhci-s3c.c')
| -rw-r--r-- | drivers/mmc/host/sdhci-s3c.c | 28 |
1 files changed, 17 insertions, 11 deletions
diff --git a/drivers/mmc/host/sdhci-s3c.c b/drivers/mmc/host/sdhci-s3c.c index fe886d6c474a..82709b6da861 100644 --- a/drivers/mmc/host/sdhci-s3c.c +++ b/drivers/mmc/host/sdhci-s3c.c @@ -203,17 +203,23 @@ static void sdhci_s3c_set_clock(struct sdhci_host *host, unsigned int clock) writel(ctrl, host->ioaddr + S3C_SDHCI_CONTROL2); } - /* reconfigure the hardware for new clock rate */ - - { - struct mmc_ios ios; - - ios.clock = clock; - - if (ourhost->pdata->cfg_card) - (ourhost->pdata->cfg_card)(ourhost->pdev, host->ioaddr, - &ios, NULL); - } + /* reprogram default hardware configuration */ + writel(S3C64XX_SDHCI_CONTROL4_DRIVE_9mA, + host->ioaddr + S3C64XX_SDHCI_CONTROL4); + + ctrl = readl(host->ioaddr + S3C_SDHCI_CONTROL2); + ctrl |= (S3C64XX_SDHCI_CTRL2_ENSTAASYNCCLR | + S3C64XX_SDHCI_CTRL2_ENCMDCNFMSK | + S3C_SDHCI_CTRL2_ENFBCLKRX | + S3C_SDHCI_CTRL2_DFCNT_NONE | + S3C_SDHCI_CTRL2_ENCLKOUTHOLD); + writel(ctrl, host->ioaddr + S3C_SDHCI_CONTROL2); + + /* reconfigure the controller for new clock rate */ + ctrl = (S3C_SDHCI_CTRL3_FCSEL1 | S3C_SDHCI_CTRL3_FCSEL0); + if (clock < 25 * 1000000) + ctrl |= (S3C_SDHCI_CTRL3_FCSEL3 | S3C_SDHCI_CTRL3_FCSEL2); + writel(ctrl, host->ioaddr + S3C_SDHCI_CONTROL3); } /** |