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| author | Haojian Zhuang <haojian.zhuang@marvell.com> | 2009-12-04 09:41:28 -0500 |
|---|---|---|
| committer | Eric Miao <eric.y.miao@gmail.com> | 2010-03-02 07:40:55 +0800 |
| commit | 2f7e8faef5a50efaa1c173e99bdaa29e0129bb99 (patch) | |
| tree | c73ae01004e110a87b7cf6cae686b9c142e2a63b /arch/arm/mach-mmp/time.c | |
| parent | 978da5bcdb33f6e030fa3304662e2455a018f1b0 (diff) | |
| download | lwn-2f7e8faef5a50efaa1c173e99bdaa29e0129bb99.tar.gz lwn-2f7e8faef5a50efaa1c173e99bdaa29e0129bb99.zip | |
[ARM] mmp: add support for Marvell MMP2
Marvell MMP2 (aka ARMADA610) is a SoC based on PJ4 core. It's
ARMv6 compatible. Support basic interrupt handler and timer,
and basic support for MMP2 based FLINT platform.
Signed-off-by: Haojian Zhuang <haojian.zhuang@marvell.com>
Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
Diffstat (limited to 'arch/arm/mach-mmp/time.c')
| -rw-r--r-- | arch/arm/mach-mmp/time.c | 26 |
1 files changed, 25 insertions, 1 deletions
diff --git a/arch/arm/mach-mmp/time.c b/arch/arm/mach-mmp/time.c index a8400bb891e7..cf75694e9687 100644 --- a/arch/arm/mach-mmp/time.c +++ b/arch/arm/mach-mmp/time.c @@ -30,7 +30,10 @@ #include <mach/addr-map.h> #include <mach/regs-timers.h> +#include <mach/regs-apbc.h> #include <mach/irqs.h> +#include <mach/cputype.h> +#include <asm/mach/time.h> #include "clock.h" @@ -158,7 +161,7 @@ static void __init timer_config(void) __raw_writel(cer & ~0x1, TIMERS_VIRT_BASE + TMR_CER); /* disable */ - ccr &= TMR_CCR_CS_0(0x3); + ccr &= (cpu_is_mmp2()) ? TMR_CCR_CS_0(0) : TMR_CCR_CS_0(3); __raw_writel(ccr, TIMERS_VIRT_BASE + TMR_CCR); /* free-running mode */ @@ -197,3 +200,24 @@ void __init timer_init(int irq) clocksource_register(&cksrc); clockevents_register_device(&ckevt); } + +static void __init mmp2_timer_init(void) +{ + unsigned long clk_rst; + + __raw_writel(APBC_APBCLK | APBC_RST, APBC_MMP2_TIMERS); + + /* + * enable bus/functional clock, enable 6.5MHz (divider 4), + * release reset + */ + clk_rst = APBC_APBCLK | APBC_FNCLK | APBC_FNCLKSEL(1); + __raw_writel(clk_rst, APBC_MMP2_TIMERS); + + timer_init(IRQ_MMP2_TIMER1); +} + +struct sys_timer mmp2_timer = { + .init = mmp2_timer_init, +}; + |