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authorAfzal Mohammed <afzal@ti.com>2013-05-27 20:06:23 +0530
committerTony Lindgren <tony@atomide.com>2013-06-12 08:00:35 -0700
commitc5107027b12181a1fc7a9b656f15300ea12d26aa (patch)
tree109157672af597036297bcb8e8e19a1f6595a889
parentaddb154ad115c4fff7bd48dc4064e1cb1432e64c (diff)
ARM: OMAP2+: AM43x: early init
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@ti.com> [tony@atomide.com: updated to drop am33xx_check_features()] Signed-off-by: Tony Lindgren <tony@atomide.com>
-rw-r--r--arch/arm/mach-omap2/am33xx.h1
-rw-r--r--arch/arm/mach-omap2/common.h1
-rw-r--r--arch/arm/mach-omap2/io.c13
3 files changed, 15 insertions, 0 deletions
diff --git a/arch/arm/mach-omap2/am33xx.h b/arch/arm/mach-omap2/am33xx.h
index 43296c1af9ee..5eef093e6738 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 d555cf2459e1..00f890e26fc9 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 39d559907545..f96215075b92 100644
--- a/arch/arm/mach-omap2/io.c
+++ b/arch/arm/mach-omap2/io.c
@@ -586,6 +586,19 @@ 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();
+}
+#endif
+
#ifdef CONFIG_ARCH_OMAP4
void __init omap4430_init_early(void)
{