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Diffstat (limited to 'arch/arm/mach-msm/timer.c')
-rw-r--r--arch/arm/mach-msm/timer.c43
1 files changed, 25 insertions, 18 deletions
diff --git a/arch/arm/mach-msm/timer.c b/arch/arm/mach-msm/timer.c
index c105d28b53e..5548b156cff 100644
--- a/arch/arm/mach-msm/timer.c
+++ b/arch/arm/mach-msm/timer.c
@@ -24,10 +24,7 @@
#include <asm/mach/time.h>
#include <mach/msm_iomap.h>
-
-#ifndef MSM_DGT_BASE
-#define MSM_DGT_BASE (MSM_GPT_BASE + 0x10)
-#endif
+#include <mach/cpu.h>
#define TIMER_MATCH_VAL 0x0000
#define TIMER_COUNT_VAL 0x0004
@@ -52,14 +49,9 @@ enum timer_location {
GLOBAL_TIMER = 1,
};
-#ifdef MSM_TMR0_BASE
-#define MSM_TMR_GLOBAL (MSM_TMR0_BASE - MSM_TMR_BASE)
-#else
-#define MSM_TMR_GLOBAL 0
-#endif
-
#define MSM_GLOBAL_TIMER MSM_CLOCK_DGT
+/* TODO: Remove these ifdefs */
#if defined(CONFIG_ARCH_QSD8X50)
#define DGT_HZ (19200000 / 4) /* 19.2 MHz / 4 by default */
#define MSM_DGT_SHIFT (0)
@@ -177,11 +169,7 @@ static struct msm_clock msm_clocks[] = {
.dev_id = &msm_clocks[0].clockevent,
.irq = INT_GP_TIMER_EXP
},
- .regbase = MSM_GPT_BASE,
.freq = GPT_HZ,
- .local_counter = MSM_GPT_BASE + TIMER_COUNT_VAL,
- .global_counter = MSM_GPT_BASE + TIMER_COUNT_VAL +
- MSM_TMR_GLOBAL,
},
[MSM_CLOCK_DGT] = {
.clockevent = {
@@ -206,12 +194,8 @@ static struct msm_clock msm_clocks[] = {
.dev_id = &msm_clocks[1].clockevent,
.irq = INT_DEBUG_TIMER_EXP
},
- .regbase = MSM_DGT_BASE,
.freq = DGT_HZ >> MSM_DGT_SHIFT,
.shift = MSM_DGT_SHIFT,
- .local_counter = MSM_DGT_BASE + TIMER_COUNT_VAL,
- .global_counter = MSM_DGT_BASE + TIMER_COUNT_VAL +
- MSM_TMR_GLOBAL,
}
};
@@ -219,6 +203,25 @@ static void __init msm_timer_init(void)
{
int i;
int res;
+ int global_offset = 0;
+
+ if (cpu_is_msm7x01()) {
+ msm_clocks[MSM_CLOCK_GPT].regbase = MSM_CSR_BASE;
+ msm_clocks[MSM_CLOCK_DGT].regbase = MSM_CSR_BASE + 0x10;
+ } else if (cpu_is_msm7x30()) {
+ msm_clocks[MSM_CLOCK_GPT].regbase = MSM_CSR_BASE + 0x04;
+ msm_clocks[MSM_CLOCK_DGT].regbase = MSM_CSR_BASE + 0x24;
+ } else if (cpu_is_qsd8x50()) {
+ msm_clocks[MSM_CLOCK_GPT].regbase = MSM_CSR_BASE;
+ msm_clocks[MSM_CLOCK_DGT].regbase = MSM_CSR_BASE + 0x10;
+ } else if (cpu_is_msm8x60()) {
+ msm_clocks[MSM_CLOCK_GPT].regbase = MSM_TMR_BASE + 0x04;
+ msm_clocks[MSM_CLOCK_DGT].regbase = MSM_TMR_BASE + 0x24;
+
+ /* Use CPU0's timer as the global timer. */
+ global_offset = MSM_TMR0_BASE - MSM_TMR_BASE;
+ } else
+ BUG();
#ifdef CONFIG_ARCH_MSM_SCORPIONMP
writel(DGT_CLK_CTL_DIV_4, MSM_TMR_BASE + DGT_CLK_CTL);
@@ -228,6 +231,10 @@ static void __init msm_timer_init(void)
struct msm_clock *clock = &msm_clocks[i];
struct clock_event_device *ce = &clock->clockevent;
struct clocksource *cs = &clock->clocksource;
+
+ clock->local_counter = clock->regbase + TIMER_COUNT_VAL;
+ clock->global_counter = clock->local_counter + global_offset;
+
writel(0, clock->regbase + TIMER_ENABLE);
writel(0, clock->regbase + TIMER_CLEAR);
writel(~0, clock->regbase + TIMER_MATCH_VAL);