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| author | Jeff Ohlstein <johlstei@codeaurora.org> | 2010-10-05 15:23:57 -0700 |
|---|---|---|
| committer | Daniel Walker <dwalker@codeaurora.org> | 2010-10-08 15:12:36 -0700 |
| commit | 672039f0351f324bb498c5ff5d468103d321d56c (patch) | |
| tree | 1b8152cd90cf1b9a4442266459683a7ce1d25b63 /arch/arm/mach-msm/timer.c | |
| parent | 01eb4f5c77f3717d8f295610f0dbb705950beadc (diff) | |
| download | linux-672039f0351f324bb498c5ff5d468103d321d56c.tar.gz linux-672039f0351f324bb498c5ff5d468103d321d56c.tar.bz2 linux-672039f0351f324bb498c5ff5d468103d321d56c.zip | |
msm: timer: support 8x60 timers
Signed-off-by: Jeff Ohlstein <johlstei@codeaurora.org>
Signed-off-by: Daniel Walker <dwalker@codeaurora.org>
Diffstat (limited to 'arch/arm/mach-msm/timer.c')
| -rw-r--r-- | arch/arm/mach-msm/timer.c | 23 |
1 files changed, 21 insertions, 2 deletions
diff --git a/arch/arm/mach-msm/timer.c b/arch/arm/mach-msm/timer.c index dec5ca622d7d..7689848ec680 100644 --- a/arch/arm/mach-msm/timer.c +++ b/arch/arm/mach-msm/timer.c @@ -28,7 +28,6 @@ #ifndef MSM_DGT_BASE #define MSM_DGT_BASE (MSM_GPT_BASE + 0x10) #endif -#define MSM_DGT_SHIFT (5) #define TIMER_MATCH_VAL 0x0000 #define TIMER_COUNT_VAL 0x0004 @@ -36,12 +35,28 @@ #define TIMER_ENABLE_CLR_ON_MATCH_EN 2 #define TIMER_ENABLE_EN 1 #define TIMER_CLEAR 0x000C - +#define DGT_CLK_CTL 0x0034 +enum { + DGT_CLK_CTL_DIV_1 = 0, + DGT_CLK_CTL_DIV_2 = 1, + DGT_CLK_CTL_DIV_3 = 2, + DGT_CLK_CTL_DIV_4 = 3, +}; #define CSR_PROTECTION 0x0020 #define CSR_PROTECTION_EN 1 #define GPT_HZ 32768 + +#if defined(CONFIG_ARCH_QSD8X50) +#define DGT_HZ (19200000 / 4) /* 19.2 MHz / 4 by default */ +#define MSM_DGT_SHIFT (0) +#elif defined(CONFIG_ARCH_MSM7X30) || defined(CONFIG_ARCH_MSM8X60) +#define DGT_HZ (24576000 / 4) /* 24.576 MHz (LPXO) / 4 by default */ +#define MSM_DGT_SHIFT (0) +#else #define DGT_HZ 19200000 /* 19.2 MHz or 600 KHz after shift */ +#define MSM_DGT_SHIFT (5) +#endif struct msm_clock { struct clock_event_device clockevent; @@ -170,6 +185,10 @@ static void __init msm_timer_init(void) int i; int res; +#ifdef CONFIG_ARCH_MSM8X60 + writel(DGT_CLK_CTL_DIV_4, MSM_TMR_BASE + DGT_CLK_CTL); +#endif + for (i = 0; i < ARRAY_SIZE(msm_clocks); i++) { struct msm_clock *clock = &msm_clocks[i]; struct clock_event_device *ce = &clock->clockevent; |