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ARM: OMAP2+: AM43x: early init

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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>
This commit is contained in:
Afzal Mohammed 2013-05-27 20:06:23 +05:30 committed by Tony Lindgren
parent addb154ad1
commit c5107027b1
3 changed files with 15 additions and 0 deletions
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1
arch/arm/mach-omap2/am33xx.h
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@ -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 */

1
arch/arm/mach-omap2/common.h
View File

@ -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 */

13
arch/arm/mach-omap2/io.c
View File

@ -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)
{