diff options
| author | Madhu <madhu.cr@ti.com> | 2009-11-22 19:11:08 +0100 |
|---|---|---|
| committer | Tony Lindgren <tony@atomide.com> | 2009-11-22 19:24:32 +0100 |
| commit | 555d503ff30b3b1292d743bb77b19212b6befb59 (patch) | |
| tree | 1e540873e6351a0a1e92c79eb326973eba9ee73e /arch | |
| parent | omap3630: Configure HSMMC1 to 4-bit (diff) | |
| download | linux-555d503ff30b3b1292d743bb77b19212b6befb59.tar.xz linux-555d503ff30b3b1292d743bb77b19212b6befb59.zip | |
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')
| -rw-r--r-- | arch/arm/mach-omap2/mmc-twl4030.c | 11 | ||||
| -rw-r--r-- | arch/arm/plat-omap/include/plat/control.h | 3 |
2 files changed, 12 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); diff --git a/arch/arm/plat-omap/include/plat/control.h b/arch/arm/plat-omap/include/plat/control.h index 79985e497c4e..2ae884378638 100644 --- a/arch/arm/plat-omap/include/plat/control.h +++ b/arch/arm/plat-omap/include/plat/control.h @@ -241,6 +241,9 @@ #define OMAP2_PBIASLITEPWRDNZ0 (1 << 1) #define OMAP2_PBIASLITEVMODE0 (1 << 0) +/* CONTROL_PROG_IO1 bits */ +#define OMAP3630_PRG_SDMMC1_SPEEDCTRL (1 << 20) + /* CONTROL_IVA2_BOOTMOD bits */ #define OMAP3_IVA2_BOOTMOD_SHIFT 0 #define OMAP3_IVA2_BOOTMOD_MASK (0xf << 0) |