diff options
| -rw-r--r-- | arch/arm/mach-omap2/omap_phy_internal.c | 32 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/pm44xx.c | 7 |
2 files changed, 32 insertions, 7 deletions
diff --git a/arch/arm/mach-omap2/omap_phy_internal.c b/arch/arm/mach-omap2/omap_phy_internal.c index d992db8ff0b0..9b56e5e1a2d2 100644 --- a/arch/arm/mach-omap2/omap_phy_internal.c +++ b/arch/arm/mach-omap2/omap_phy_internal.c @@ -33,6 +33,38 @@ #include "soc.h" #include "control.h" +#define CONTROL_DEV_CONF 0x300 +#define PHY_PD 0x1 + +/** + * omap4430_phy_power_down: disable MUSB PHY during early init + * + * OMAP4 MUSB PHY module is enabled by default on reset, but this will + * prevent core retention if not disabled by SW. USB driver will + * later on enable this, once and if the driver needs it. + */ +static int __init omap4430_phy_power_down(void) +{ + void __iomem *ctrl_base; + + if (!cpu_is_omap44xx()) + return 0; + + ctrl_base = ioremap(OMAP443X_SCM_BASE, SZ_1K); + if (!ctrl_base) { + pr_err("control module ioremap failed\n"); + return -ENOMEM; + } + + /* Power down the phy */ + __raw_writel(PHY_PD, ctrl_base + CONTROL_DEV_CONF); + + iounmap(ctrl_base); + + return 0; +} +early_initcall(omap4430_phy_power_down); + void am35x_musb_reset(void) { u32 regval; diff --git a/arch/arm/mach-omap2/pm44xx.c b/arch/arm/mach-omap2/pm44xx.c index 04922d149068..f2d69be9b77e 100644 --- a/arch/arm/mach-omap2/pm44xx.c +++ b/arch/arm/mach-omap2/pm44xx.c @@ -100,13 +100,6 @@ static int __init pwrdms_setup(struct powerdomain *pwrdm, void *unused) if (!strncmp(pwrdm->name, "cpu", 3)) return 0; - /* - * FIXME: Remove this check when core retention is supported - * Only MPUSS power domain is added in the list. - */ - if (strcmp(pwrdm->name, "mpu_pwrdm")) - return 0; - pwrst = kmalloc(sizeof(struct power_state), GFP_ATOMIC); if (!pwrst) return -ENOMEM; |