diff options
| author |   Tony Lindgren <tony@atomide.com> | 2015-05-20 09:23:43 -0700 |
|---|---|---|
| committer | Tony Lindgren <tony@atomide.com> | 2015-05-20 09:23:43 -0700 |
| commit | b96b332fd518cd4d08104bc5ca552ac1ade7e2c7 (patch) | |
| tree | 6356e47f5d443a636cbe2b786561f44625bd27bb /arch/arm/mach-omap2/control.c | |
| parent | Linux 4.1-rc1 (diff) | |
| download | linux-dev-b96b332fd518cd4d08104bc5ca552ac1ade7e2c7.tar.xz linux-dev-b96b332fd518cd4d08104bc5ca552ac1ade7e2c7.zip | |
ARM: OMAP3: Add support for configuring MMC pins as GPIO pins
Some devices are using the MMC1 pins 4..8 as GPIO pins, and in
this case they need to be configured for 1.8V IO voltage if not
done by the bootloader as otherwise some devices like smsc911x
won't work properly.
Let's also make sure this register is saved and restored for
idle.
Cc: Tim Nordell <tim.nordell@logicpd.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Diffstat (limited to 'arch/arm/mach-omap2/control.c')
| -rw-r--r-- | arch/arm/mach-omap2/control.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/arm/mach-omap2/control.c b/arch/arm/mach-omap2/control.c index af95a624fe71..f008930277ed 100644 --- a/arch/arm/mach-omap2/control.c +++ b/arch/arm/mach-omap2/control.c @@ -112,6 +112,7 @@ struct omap3_control_regs { u32 csirxfe; u32 iva2_bootaddr; u32 iva2_bootmod; + u32 wkup_ctrl; u32 debobs_0; u32 debobs_1; u32 debobs_2; @@ -455,6 +456,7 @@ void omap3_control_save_context(void) omap_ctrl_readl(OMAP343X_CONTROL_IVA2_BOOTADDR); control_context.iva2_bootmod = omap_ctrl_readl(OMAP343X_CONTROL_IVA2_BOOTMOD); + control_context.wkup_ctrl = omap_ctrl_readl(OMAP34XX_CONTROL_WKUP_CTRL); control_context.debobs_0 = omap_ctrl_readl(OMAP343X_CONTROL_DEBOBS(0)); control_context.debobs_1 = omap_ctrl_readl(OMAP343X_CONTROL_DEBOBS(1)); control_context.debobs_2 = omap_ctrl_readl(OMAP343X_CONTROL_DEBOBS(2)); @@ -512,6 +514,7 @@ void omap3_control_restore_context(void) OMAP343X_CONTROL_IVA2_BOOTADDR); omap_ctrl_writel(control_context.iva2_bootmod, OMAP343X_CONTROL_IVA2_BOOTMOD); + omap_ctrl_writel(control_context.wkup_ctrl, OMAP34XX_CONTROL_WKUP_CTRL); omap_ctrl_writel(control_context.debobs_0, OMAP343X_CONTROL_DEBOBS(0)); omap_ctrl_writel(control_context.debobs_1, OMAP343X_CONTROL_DEBOBS(1)); omap_ctrl_writel(control_context.debobs_2, OMAP343X_CONTROL_DEBOBS(2)); |