diff options
| author | Madhu <madhu.cr@ti.com> | 2009-11-22 10:11:08 -0800 |
|---|---|---|
| committer | Tony Lindgren <tony@atomide.com> | 2009-11-22 10:24:32 -0800 |
| commit | 555d503ff30b3b1292d743bb77b19212b6befb59 (patch) | |
| tree | 1e540873e6351a0a1e92c79eb326973eba9ee73e /arch/arm/mach-omap2 | |
| parent | 41fd03d66e6ae4430a0fdf7c62692a7b20b6ee6b (diff) | |
| download | linux-555d503ff30b3b1292d743bb77b19212b6befb59.tar.bz2 | |
omap3630: Set omap3630 MMC1 I/O speed to 52Mhz
The speed ctrl bit for MMC I/O is part of CONTROL_PROG_IO1 register
in omap3630.This patch sets it up accordingly.
Signed-off-by: Madhusudhan Chikkature <madhu.cr@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Diffstat (limited to 'arch/arm/mach-omap2')
| -rw-r--r-- | arch/arm/mach-omap2/mmc-twl4030.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/arch/arm/mach-omap2/mmc-twl4030.c b/arch/arm/mach-omap2/mmc-twl4030.c index 7bef170686dd..0c3c72d934bf 100644 --- a/arch/arm/mach-omap2/mmc-twl4030.c +++ b/arch/arm/mach-omap2/mmc-twl4030.c @@ -213,7 +213,7 @@ static int twl4030_mmc_get_context_loss(struct device *dev) static int twl_mmc1_set_power(struct device *dev, int slot, int power_on, int vdd) { - u32 reg; + u32 reg, prog_io; int ret = 0; struct twl_mmc_controller *c = &hsmmc[0]; struct omap_mmc_platform_data *mmc = dev->platform_data; @@ -245,7 +245,14 @@ static int twl_mmc1_set_power(struct device *dev, int slot, int power_on, } reg = omap_ctrl_readl(control_pbias_offset); - reg |= OMAP2_PBIASSPEEDCTRL0; + if (cpu_is_omap3630()) { + /* Set MMC I/O to 52Mhz */ + prog_io = omap_ctrl_readl(OMAP343X_CONTROL_PROG_IO1); + prog_io |= OMAP3630_PRG_SDMMC1_SPEEDCTRL; + omap_ctrl_writel(prog_io, OMAP343X_CONTROL_PROG_IO1); + } else { + reg |= OMAP2_PBIASSPEEDCTRL0; + } reg &= ~OMAP2_PBIASLITEPWRDNZ0; omap_ctrl_writel(reg, control_pbias_offset); |