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authorRussell King <rmk+kernel@arm.linux.org.uk>2011-01-11 13:07:52 +0000
committerRussell King <rmk+kernel@arm.linux.org.uk>2011-02-19 11:11:10 +0000
commit493a451bb559476d2f7f189670be2172ca3010b4 (patch)
tree255ca4bf23ca31e33283f65fb477df22d0ce9211 /arch/arm/mach-vexpress
parent631e55f966668d7a957342b38d7148643d919d73 (diff)
ARM: vexpress: 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-vexpress')
-rw-r--r--arch/arm/mach-vexpress/core.h1
-rw-r--r--arch/arm/mach-vexpress/ct-ca9x4.c10
-rw-r--r--arch/arm/mach-vexpress/v2m.c6
3 files changed, 13 insertions, 4 deletions
diff --git a/arch/arm/mach-vexpress/core.h b/arch/arm/mach-vexpress/core.h
index 362780d868de..e0312a1dce3a 100644
--- a/arch/arm/mach-vexpress/core.h
+++ b/arch/arm/mach-vexpress/core.h
@@ -21,4 +21,5 @@ struct amba_device name##_device = { \
struct map_desc;
void v2m_map_io(struct map_desc *tile, size_t num);
+void v2m_init_early(void);
extern struct sys_timer v2m_timer;
diff --git a/arch/arm/mach-vexpress/ct-ca9x4.c b/arch/arm/mach-vexpress/ct-ca9x4.c
index 27baed18a256..ff48ebc1a40b 100644
--- a/arch/arm/mach-vexpress/ct-ca9x4.c
+++ b/arch/arm/mach-vexpress/ct-ca9x4.c
@@ -180,6 +180,13 @@ static struct platform_device pmu_device = {
.resource = pmu_resources,
};
+static void __init ct_ca9x4_init_early(void)
+{
+ clkdev_add_table(lookups, ARRAY_SIZE(lookups));
+
+ v2m_init_early();
+}
+
static void __init ct_ca9x4_init(void)
{
int i;
@@ -194,8 +201,6 @@ static void __init ct_ca9x4_init(void)
l2x0_init(l2x0_base, 0x00400000, 0xfe0fffff);
#endif
- clkdev_add_table(lookups, ARRAY_SIZE(lookups));
-
for (i = 0; i < ARRAY_SIZE(ct_ca9x4_amba_devs); i++)
amba_device_register(ct_ca9x4_amba_devs[i], &iomem_resource);
@@ -206,6 +211,7 @@ MACHINE_START(VEXPRESS, "ARM-Versatile Express CA9x4")
.boot_params = PHYS_OFFSET + 0x00000100,
.map_io = ct_ca9x4_map_io,
.init_irq = ct_ca9x4_init_irq,
+ .init_early = ct_ca9x4_init_early,
#if 0
.timer = &ct_ca9x4_timer,
#else
diff --git a/arch/arm/mach-vexpress/v2m.c b/arch/arm/mach-vexpress/v2m.c
index f35d646a1bf1..63ef663fb0be 100644
--- a/arch/arm/mach-vexpress/v2m.c
+++ b/arch/arm/mach-vexpress/v2m.c
@@ -49,13 +49,15 @@ void __init v2m_map_io(struct map_desc *tile, size_t num)
iotable_init(tile, num);
}
+void __init v2m_init_early(void)
+{
+ versatile_sched_clock_init(MMIO_P2V(V2M_SYS_24MHZ), 24000000);
+}
static void __init v2m_timer_init(void)
{
u32 scctrl;
- versatile_sched_clock_init(MMIO_P2V(V2M_SYS_24MHZ), 24000000);
-
/* Select 1MHz TIMCLK as the reference clock for SP804 timers */
scctrl = readl(MMIO_P2V(V2M_SYSCTL + SCCTRL));
scctrl |= SCCTRL_TIMEREN0SEL_TIMCLK;