diff options
Diffstat (limited to 'arch/arm/mach-omap2/control.c')
| -rw-r--r-- | arch/arm/mach-omap2/control.c | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/arch/arm/mach-omap2/control.c b/arch/arm/mach-omap2/control.c index a8d20eef2306..8b3c469e7bcd 100644 --- a/arch/arm/mach-omap2/control.c +++ b/arch/arm/mach-omap2/control.c @@ -25,6 +25,7 @@ #include "sdrc.h" static void __iomem *omap2_ctrl_base; +static void __iomem *omap4_ctrl_pad_base; #if defined(CONFIG_ARCH_OMAP3) && defined(CONFIG_PM) struct omap3_scratchpad { @@ -137,6 +138,7 @@ static struct omap3_control_regs control_context; #endif /* CONFIG_ARCH_OMAP3 && CONFIG_PM */ #define OMAP_CTRL_REGADDR(reg) (omap2_ctrl_base + (reg)) +#define OMAP4_CTRL_PAD_REGADDR(reg) (omap4_ctrl_pad_base + (reg)) void __init omap2_set_globals_control(struct omap_globals *omap2_globals) { @@ -145,6 +147,12 @@ void __init omap2_set_globals_control(struct omap_globals *omap2_globals) omap2_ctrl_base = ioremap(omap2_globals->ctrl, SZ_4K); WARN_ON(!omap2_ctrl_base); } + + /* Static mapping, never released */ + if (omap2_globals->ctrl_pad) { + omap4_ctrl_pad_base = ioremap(omap2_globals->ctrl_pad, SZ_4K); + WARN_ON(!omap4_ctrl_pad_base); + } } void __iomem *omap_ctrl_base_get(void) @@ -182,6 +190,23 @@ void omap_ctrl_writel(u32 val, u16 offset) __raw_writel(val, OMAP_CTRL_REGADDR(offset)); } +/* + * On OMAP4 control pad are not addressable from control + * core base. So the common omap_ctrl_read/write APIs breaks + * Hence export separate APIs to manage the omap4 pad control + * registers. This APIs will work only for OMAP4 + */ + +u32 omap4_ctrl_pad_readl(u16 offset) +{ + return __raw_readl(OMAP4_CTRL_PAD_REGADDR(offset)); +} + +void omap4_ctrl_pad_writel(u32 val, u16 offset) +{ + __raw_writel(val, OMAP4_CTRL_PAD_REGADDR(offset)); +} + #if defined(CONFIG_ARCH_OMAP3) && defined(CONFIG_PM) /* * Clears the scratchpad contents in case of cold boot- |