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
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@xxxxxx>
---
arch/arm/mach-omap2/control.c | 18 ++++++++++++++++++
arch/arm/plat-omap/include/plat/control.h | 4 ++++
2 files changed, 22 insertions(+), 0 deletions(-)
diff --git a/arch/arm/mach-omap2/control.c b/arch/arm/mach-omap2/control.c
index 99c0eb6..4ace2d1 100644
--- a/arch/arm/mach-omap2/control.c
+++ b/arch/arm/mach-omap2/control.c
@@ -138,6 +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 OMAP_CTRL_PAD_REGADDR(reg) (omap4_ctrl_pad_base + (reg))
void __init omap2_set_globals_control(struct omap_globals *omap2_globals)
{
@@ -189,6 +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(OMAP_CTRL_PAD_REGADDR(offset));
+}
+
+void omap4_ctrl_pad_writel(u32 val, u16 offset)
+{
+ __raw_writel(val, OMAP_CTRL_PAD_REGADDR(offset));
+}
+
#if defined(CONFIG_ARCH_OMAP3) && defined(CONFIG_PM)
/*
* Clears the scratchpad contents in case of cold boot-
diff --git a/arch/arm/plat-omap/include/plat/control.h b/arch/arm/plat-omap/include/plat/control.h
index 131bf40..2916b7e 100644
--- a/arch/arm/plat-omap/include/plat/control.h
+++ b/arch/arm/plat-omap/include/plat/control.h
@@ -354,9 +354,11 @@ extern void __iomem *omap_ctrl_base_get(void);
extern u8 omap_ctrl_readb(u16 offset);
extern u16 omap_ctrl_readw(u16 offset);
extern u32 omap_ctrl_readl(u16 offset);
+extern u32 omap4_ctrl_pad_readl(u16 offset);
extern void omap_ctrl_writeb(u8 val, u16 offset);
extern void omap_ctrl_writew(u16 val, u16 offset);
extern void omap_ctrl_writel(u32 val, u16 offset);
+extern void omap4_ctrl_pad_writel(u32 val, u16 offset);
extern void omap3_save_scratchpad_contents(void);
extern void omap3_clear_scratchpad_contents(void);
@@ -371,9 +373,11 @@ extern void omap3_control_restore_context(void);
#define omap_ctrl_readb(x) 0
#define omap_ctrl_readw(x) 0
#define omap_ctrl_readl(x) 0
+#define omap4_ctrl_pad_readl(x) 0
#define omap_ctrl_writeb(x, y) WARN_ON(1)
#define omap_ctrl_writew(x, y) WARN_ON(1)
#define omap_ctrl_writel(x, y) WARN_ON(1)
+#define omap4_ctrl_pad_writel(x, y) WARN_ON(1)
#endif
#endif /* __ASSEMBLY__ */
--
1.6.0.4
--
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