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| author | Linus Walleij <linus.walleij@stericsson.com> | 2010-09-13 13:38:55 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2010-09-17 10:16:47 +0100 |
| commit | 99f76891a33d130776da3b01935d978b1e75fe68 (patch) | |
| tree | f4224067ddd14bde9b8730278c8bc1a9257a292d /arch | |
| parent | 03a7ab083e4d619136d6f07ce70fa9de0bc436fc (diff) | |
| download | linux-99f76891a33d130776da3b01935d978b1e75fe68.tar.gz linux-99f76891a33d130776da3b01935d978b1e75fe68.tar.bz2 linux-99f76891a33d130776da3b01935d978b1e75fe68.zip | |
ARM: 6375/1: plat-nomadik: MTU timer trivial bug fix
timer0 to 3 are all on mtu block 0, so don't calculate the clock event
rate based upon mtu block 1's clock speed.
Acked-by: Alessandro Rubini <rubini@unipv.it>
Signed-off-by: Jonas Aaberg <jonas.aberg@stericsson.com>
Signed-off-by: Linus Walleij <linus.walleij@stericsson.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/plat-nomadik/timer.c | 16 |
1 files changed, 2 insertions, 14 deletions
diff --git a/arch/arm/plat-nomadik/timer.c b/arch/arm/plat-nomadik/timer.c index ea3ca86c5283..d673888af18e 100644 --- a/arch/arm/plat-nomadik/timer.c +++ b/arch/arm/plat-nomadik/timer.c @@ -131,17 +131,12 @@ void __init nmdk_timer_init(void) { unsigned long rate; struct clk *clk0; - struct clk *clk1; u32 cr; clk0 = clk_get_sys("mtu0", NULL); BUG_ON(IS_ERR(clk0)); - clk1 = clk_get_sys("mtu1", NULL); - BUG_ON(IS_ERR(clk1)); - clk_enable(clk0); - clk_enable(clk1); /* * Tick rate is 2.4MHz for Nomadik and 110MHz for ux500: @@ -170,15 +165,8 @@ void __init nmdk_timer_init(void) pr_err("timer: failed to initialize clock source %s\n", nmdk_clksrc.name); - /* Timer 1 is used for events, fix according to rate */ - cr = MTU_CRn_32BITS; - rate = clk_get_rate(clk1); - if (rate > 16 << 20) { - rate /= 16; - cr |= MTU_CRn_PRESCALE_16; - } else { - cr |= MTU_CRn_PRESCALE_1; - } + /* Timer 1 is used for events */ + clockevents_calc_mult_shift(&nmdk_clkevt, rate, MTU_MIN_RANGE); writel(cr | MTU_CRn_ONESHOT, mtu_base + MTU_CR(1)); /* off, currently */ |