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author | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2010-08-16 19:42:58 +0200 |
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committer | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2010-08-16 19:42:58 +0200 |
commit | e4862f2f6f5653dfb67f3ba2b6f0bc74516ed51a (patch) | |
tree | 1db5a0540a4eecfad9b7daee476b985e82ddc810 /arch/tile/include/asm/timex.h | |
parent | Merge branch 'for-2.6.36' of git://git.kernel.org/pub/scm/linux/kernel/git/br... (diff) | |
parent | ASoC: Remove DSP mode support for WM8776 (diff) | |
download | linux-e4862f2f6f5653dfb67f3ba2b6f0bc74516ed51a.tar.xz linux-e4862f2f6f5653dfb67f3ba2b6f0bc74516ed51a.zip |
Merge branch 'for-2.6.36' into for-2.6.37
Fairly simple conflicts, the most serious ones are the i.MX ones which I
suspect now need another rename.
Conflicts:
arch/arm/mach-mx2/clock_imx27.c
arch/arm/mach-mx2/devices.c
arch/arm/mach-omap2/board-rx51-peripherals.c
arch/arm/mach-omap2/board-zoom2.c
sound/soc/fsl/mpc5200_dma.c
sound/soc/fsl/mpc5200_dma.h
sound/soc/fsl/mpc8610_hpcd.c
sound/soc/pxa/spitz.c
Diffstat (limited to 'arch/tile/include/asm/timex.h')
-rw-r--r-- | arch/tile/include/asm/timex.h | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/arch/tile/include/asm/timex.h b/arch/tile/include/asm/timex.h new file mode 100644 index 000000000000..3baf5fc4c0a1 --- /dev/null +++ b/arch/tile/include/asm/timex.h @@ -0,0 +1,47 @@ +/* + * Copyright 2010 Tilera Corporation. All Rights Reserved. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation, version 2. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or + * NON INFRINGEMENT. See the GNU General Public License for + * more details. + */ + +#ifndef _ASM_TILE_TIMEX_H +#define _ASM_TILE_TIMEX_H + +/* + * This rate should be a multiple of the possible HZ values (100, 250, 1000) + * and a fraction of the possible hardware timer frequencies. Our timer + * frequency is highly tunable but also quite precise, so for the primary use + * of this value (setting ACT_HZ from HZ) we just pick a value that causes + * ACT_HZ to be set to HZ. We make the value somewhat large just to be + * more robust in case someone tries out a new value of HZ. + */ +#define CLOCK_TICK_RATE 1000000 + +typedef unsigned long long cycles_t; + +#if CHIP_HAS_SPLIT_CYCLE() +cycles_t get_cycles(void); +#else +static inline cycles_t get_cycles(void) +{ + return __insn_mfspr(SPR_CYCLE); +} +#endif + +cycles_t get_clock_rate(void); + +/* Called at cpu initialization to set some low-level constants. */ +void setup_clock(void); + +/* Called at cpu initialization to start the tile-timer clock device. */ +void setup_tile_timer(void); + +#endif /* _ASM_TILE_TIMEX_H */ |