summaryrefslogtreecommitdiff
path: root/drivers/mmc/host/sdhci-s3c.c
diff options
context:
space:
mode:
authorThomas Abraham <thomas.abraham@linaro.org>2011-09-14 11:09:17 +0400
committerChris Ball <cjb@laptop.org>2011-10-26 23:43:42 +0400
commit6fe47179a07009ee3ee7c8b962966fee420becc8 (patch)
tree1d5cff166a8ce97c25ff6bd0059aadca0b6b9dc4 /drivers/mmc/host/sdhci-s3c.c
parent041beb1d531f538bf62377e2ca2b4ecbaa479d75 (diff)
downloadlinux-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.c28
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);
}
/**