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authorRussell King <rmk+kernel@arm.linux.org.uk>2011-01-11 12:55:38 +0000
committerRussell King <rmk+kernel@arm.linux.org.uk>2011-02-19 11:11:05 +0000
commitad3bb19c5bd17cebe8e9a97dc0b53e274a05f23b (patch)
tree511f751baee2a140bff05ee2c4a52ea070d20f48 /arch/arm/mach-versatile
parentc735c9873d0c2f269fd16f4b04903da41a44cbcf (diff)
ARM: versatile: use new init_early for clock tree and sched_clock init
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>
Diffstat (limited to 'arch/arm/mach-versatile')
-rw-r--r--arch/arm/mach-versatile/core.c23
-rw-r--r--arch/arm/mach-versatile/core.h1
-rw-r--r--arch/arm/mach-versatile/versatile_ab.c1
-rw-r--r--arch/arm/mach-versatile/versatile_pb.c1
4 files changed, 14 insertions, 12 deletions
diff --git a/arch/arm/mach-versatile/core.c b/arch/arm/mach-versatile/core.c
index b4f1f17eeb8d..606e046905e3 100644
--- a/arch/arm/mach-versatile/core.c
+++ b/arch/arm/mach-versatile/core.c
@@ -762,14 +762,21 @@ static void versatile_leds_event(led_event_t ledevt)
}
#endif /* CONFIG_LEDS */
-void __init versatile_init(void)
+/* Early initializations */
+void __init versatile_init_early(void)
{
- int i;
-
- osc4_clk.vcoreg = __io_address(VERSATILE_SYS_BASE) + VERSATILE_SYS_OSCCLCD_OFFSET;
+ 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;
+
platform_device_register(&versatile_flash_device);
platform_device_register(&versatile_i2c_device);
platform_device_register(&smc91x_device);
@@ -786,12 +793,6 @@ void __init versatile_init(void)
}
/*
- * The sched_clock counter
- */
-#define REFCOUNTER (__io_address(VERSATILE_SYS_BASE) + \
- VERSATILE_SYS_24MHz_OFFSET)
-
-/*
* Where is the timer (VA)?
*/
#define TIMER0_VA_BASE __io_address(VERSATILE_TIMER0_1_BASE)
@@ -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
diff --git a/arch/arm/mach-versatile/core.h b/arch/arm/mach-versatile/core.h
index 9d39886a8351..e04768a6c5dc 100644
--- a/arch/arm/mach-versatile/core.h
+++ b/arch/arm/mach-versatile/core.h
@@ -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;
diff --git a/arch/arm/mach-versatile/versatile_ab.c b/arch/arm/mach-versatile/versatile_ab.c
index aa9730fb13bf..f8ae64b3eed0 100644
--- a/arch/arm/mach-versatile/versatile_ab.c
+++ b/arch/arm/mach-versatile/versatile_ab.c
@@ -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,
diff --git a/arch/arm/mach-versatile/versatile_pb.c b/arch/arm/mach-versatile/versatile_pb.c
index bf469642a3f8..97fb30691c47 100644
--- a/arch/arm/mach-versatile/versatile_pb.c
+++ b/arch/arm/mach-versatile/versatile_pb.c
@@ -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,