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ARM: versatile: use new init_early for clock tree and sched_clock init

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Initialize the clock tree and our sched_clock() early.

Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Russell King 2011-01-11 12:55:38 +00:00
parent c735c9873d
commit ad3bb19c5b
4 changed files with 14 additions and 12 deletions
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23
arch/arm/mach-versatile/core.c
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@ -762,14 +762,21 @@ static void versatile_leds_event(led_event_t ledevt)
}
#endif /* CONFIG_LEDS */
/* Early initializations */
void __init versatile_init_early(void)
{
void __iomem *sys = __io_address(VERSATILE_SYS_BASE);
osc4_clk.vcoreg = sys + VERSATILE_SYS_OSCCLCD_OFFSET;
clkdev_add_table(lookups, ARRAY_SIZE(lookups));
versatile_sched_clock_init(sys + VERSATILE_SYS_24MHz_OFFSET, 24000000);
}
void __init versatile_init(void)
{
int i;
osc4_clk.vcoreg = __io_address(VERSATILE_SYS_BASE) + VERSATILE_SYS_OSCCLCD_OFFSET;
clkdev_add_table(lookups, ARRAY_SIZE(lookups));
platform_device_register(&versatile_flash_device);
platform_device_register(&versatile_i2c_device);
platform_device_register(&smc91x_device);
@ -785,12 +792,6 @@ void __init versatile_init(void)
#endif
}
/*
* The sched_clock counter
*/
#define REFCOUNTER (__io_address(VERSATILE_SYS_BASE) + \
VERSATILE_SYS_24MHz_OFFSET)
/*
* Where is the timer (VA)?
*/
@ -806,8 +807,6 @@ static void __init versatile_timer_init(void)
{
u32 val;
versatile_sched_clock_init(REFCOUNTER, 24000000);
/*
* set clock frequency:
* VERSATILE_REFCLK is 32KHz

1
arch/arm/mach-versatile/core.h
View file

@ -25,6 +25,7 @@
#include <linux/amba/bus.h>
extern void __init versatile_init(void);
extern void __init versatile_init_early(void);
extern void __init versatile_init_irq(void);
extern void __init versatile_map_io(void);
extern struct sys_timer versatile_timer;

1
arch/arm/mach-versatile/versatile_ab.c
View file

@ -37,6 +37,7 @@ MACHINE_START(VERSATILE_AB, "ARM-Versatile AB")
/* Maintainer: ARM Ltd/Deep Blue Solutions Ltd */
.boot_params = 0x00000100,
.map_io = versatile_map_io,
.init_early = versatile_init_early,
.init_irq = versatile_init_irq,
.timer = &versatile_timer,
.init_machine = versatile_init,

1
arch/arm/mach-versatile/versatile_pb.c
View file

@ -110,6 +110,7 @@ MACHINE_START(VERSATILE_PB, "ARM-Versatile PB")
/* Maintainer: ARM Ltd/Deep Blue Solutions Ltd */
.boot_params = 0x00000100,
.map_io = versatile_map_io,
.init_early = versatile_init_early,
.init_irq = versatile_init_irq,
.timer = &versatile_timer,
.init_machine = versatile_pb_init,