redonkable/alistair23-linux
redonkable/alistair23-linux
1
0
Fork 0
Code Releases Activity

mmc: sdhci-s3c: add default controller configuration

Browse source 
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>
This commit is contained in:
Thomas Abraham 2011-09-14 12:39:17 +05:30 committed by Chris Ball
parent 041beb1d53
commit 6fe47179a0
1 changed files with 15 additions and 9 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

24
drivers/mmc/host/sdhci-s3c.c
View file

@ -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 */
/* reprogram default hardware configuration */
writel(S3C64XX_SDHCI_CONTROL4_DRIVE_9mA,
host->ioaddr + S3C64XX_SDHCI_CONTROL4);
{
struct mmc_ios ios;
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);
ios.clock = clock;
if (ourhost->pdata->cfg_card)
(ourhost->pdata->cfg_card)(ourhost->pdev, host->ioaddr,
&ios, NULL);
}
/* 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);
}
/**