Minimal early init - PRCM initialization not yet taken care.
Control module is similar (base address, feature register etc.) as
that of AM335x, while PRCM base address is different. Instead of
adding a new header file for AM43x, PRCM base address is added in
AM335x header file as it is similar to it to a large extent.
Signed-off-by: Afzal Mohammed <afzal@xxxxxx>
---
arch/arm/mach-omap2/am33xx.h | 1 +
arch/arm/mach-omap2/common.h | 1 +
arch/arm/mach-omap2/io.c | 14 ++++++++++++++
3 files changed, 16 insertions(+)
diff --git a/arch/arm/mach-omap2/am33xx.h b/arch/arm/mach-omap2/am33xx.h
index 43296c1..5eef093 100644
--- a/arch/arm/mach-omap2/am33xx.h
+++ b/arch/arm/mach-omap2/am33xx.h
@@ -21,6 +21,7 @@
#define AM33XX_SCM_BASE 0x44E10000
#define AM33XX_CTRL_BASE AM33XX_SCM_BASE
#define AM33XX_PRCM_BASE 0x44E00000
+#define AM43XX_PRCM_BASE 0x44DF0000
#define AM33XX_TAP_BASE (AM33XX_CTRL_BASE + 0x3FC)
#endif /* __ASM_ARCH_AM33XX_H */
diff --git a/arch/arm/mach-omap2/common.h b/arch/arm/mach-omap2/common.h
index d555cf2..00f890e 100644
--- a/arch/arm/mach-omap2/common.h
+++ b/arch/arm/mach-omap2/common.h
@@ -96,6 +96,7 @@ void am33xx_init_early(void);
void am35xx_init_early(void);
void ti81xx_init_early(void);
void am33xx_init_early(void);
+void am43xx_init_early(void);
void omap4430_init_early(void);
void omap5_init_early(void);
void omap3_init_late(void); /* Do not use this one */
diff --git a/arch/arm/mach-omap2/io.c b/arch/arm/mach-omap2/io.c
index 3a81221..f933f7f 100644
--- a/arch/arm/mach-omap2/io.c
+++ b/arch/arm/mach-omap2/io.c
@@ -586,6 +586,20 @@ void __init am33xx_init_early(void)
}
#endif
+#ifdef CONFIG_SOC_AM43XX
+void __init am43xx_init_early(void)
+{
+ omap2_set_globals_tap(AM335X_CLASS,
+ AM33XX_L4_WK_IO_ADDRESS(AM33XX_TAP_BASE));
+ omap2_set_globals_control(AM33XX_L4_WK_IO_ADDRESS(AM33XX_CTRL_BASE),
+ NULL);
+ omap2_set_globals_prm(AM33XX_L4_WK_IO_ADDRESS(AM43XX_PRCM_BASE));
+ omap2_set_globals_cm(AM33XX_L4_WK_IO_ADDRESS(AM43XX_PRCM_BASE), NULL);
+ omap3xxx_check_revision();
+ am33xx_check_features();
+}
+#endif
+
#ifdef CONFIG_ARCH_OMAP4
void __init omap4430_init_early(void)
{
--
1.7.12
--
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