From 8cc4c5488a28fe6a1f834e99317bb762798600f7 Mon Sep 17 00:00:00 2001 From: Catalin Marinas Date: Mon, 4 Feb 2008 17:43:02 +0100 Subject: [PATCH] [ARM] 4820/1: RealView: Select the timer IRQ at run-time This patch sets the timer IRQ at run-time by moving the sys_timer structure and the timer_init function to the realview_eb.c file. This allows multiple RealView platforms to be compiled in the same kernel image. Signed-off-by: Catalin Marinas Signed-off-by: Russell King --- arch/arm/mach-realview/core.c | 15 +++++---------- arch/arm/mach-realview/core.h | 3 +-- arch/arm/mach-realview/realview_eb.c | 19 ++++++++++++++++++- 3 files changed, 24 insertions(+), 13 deletions(-) diff --git a/arch/arm/mach-realview/core.c b/arch/arm/mach-realview/core.c index 29514ac94f34..98aefc9f4df3 100644 --- a/arch/arm/mach-realview/core.c +++ b/arch/arm/mach-realview/core.c @@ -39,7 +39,6 @@ #include #include #include -#include #include #include @@ -513,12 +512,12 @@ static struct clock_event_device timer0_clockevent = { .set_mode = timer_set_mode, .set_next_event = timer_set_next_event, .rating = 300, - .irq = IRQ_TIMERINT0_1, .cpumask = CPU_MASK_ALL, }; -static void __init realview_clockevents_init(void) +static void __init realview_clockevents_init(unsigned int timer_irq) { + timer0_clockevent.irq = timer_irq; timer0_clockevent.mult = div_sc(1000000, NSEC_PER_SEC, timer0_clockevent.shift); timer0_clockevent.max_delta_ns = @@ -581,7 +580,7 @@ static void __init realview_clocksource_init(void) /* * Set up the clock source and clock events devices */ -static void __init realview_timer_init(void) +void __init realview_timer_init(unsigned int timer_irq) { u32 val; @@ -616,12 +615,8 @@ static void __init realview_timer_init(void) /* * Make irqs happen for the system timer */ - setup_irq(IRQ_TIMERINT0_1, &realview_timer_irq); + setup_irq(timer_irq, &realview_timer_irq); realview_clocksource_init(); - realview_clockevents_init(); + realview_clockevents_init(timer_irq); } - -struct sys_timer realview_timer = { - .init = realview_timer_init, -}; diff --git a/arch/arm/mach-realview/core.h b/arch/arm/mach-realview/core.h index 1c091372be6c..16c9d45ce2c2 100644 --- a/arch/arm/mach-realview/core.h +++ b/arch/arm/mach-realview/core.h @@ -27,8 +27,6 @@ #include #include -extern struct sys_timer realview_timer; - #define AMBA_DEVICE(name,busid,base,plat) \ static struct amba_device name##_device = { \ .dev = { \ @@ -55,5 +53,6 @@ extern struct clcd_board clcd_plat_data; extern void __iomem *gic_cpu_base_addr; extern void realview_leds_event(led_event_t ledevt); +extern void realview_timer_init(unsigned int timer_irq); #endif diff --git a/arch/arm/mach-realview/realview_eb.c b/arch/arm/mach-realview/realview_eb.c index f36af1335024..20b05f2ed61c 100644 --- a/arch/arm/mach-realview/realview_eb.c +++ b/arch/arm/mach-realview/realview_eb.c @@ -36,6 +36,7 @@ #include #include #include +#include #include #include @@ -304,6 +305,22 @@ static void realview_eb11mp_fixup(void) realview_eb_smc91x_resources[1].end = IRQ_EB11MP_ETH; } +static void __init realview_eb_timer_init(void) +{ + unsigned int timer_irq; + + if (core_tile_eb11mp()) + timer_irq = IRQ_EB11MP_TIMER0_1; + else + timer_irq = IRQ_EB_TIMER0_1; + + realview_timer_init(timer_irq); +} + +static struct sys_timer realview_eb_timer = { + .init = realview_eb_timer_init, +}; + static void __init realview_eb_init(void) { int i; @@ -339,6 +356,6 @@ MACHINE_START(REALVIEW_EB, "ARM-RealView EB") .boot_params = 0x00000100, .map_io = realview_eb_map_io, .init_irq = gic_init_irq, - .timer = &realview_timer, + .timer = &realview_eb_timer, .init_machine = realview_eb_init, MACHINE_END