diff options
| author | Changhwan Youn <chaos.youn@samsung.com> | 2011-03-11 04:39:57 +0300 |
|---|---|---|
| committer | Kukjin Kim <kgene.kim@samsung.com> | 2011-03-11 04:40:37 +0300 |
| commit | 30d8bead5a309492d1dae2f6511a0465fe6ad05e (patch) | |
| tree | 0c2d5f42b58d9ade1a1a317dcddf89a5042f4d21 /arch/arm/mach-exynos4/include | |
| parent | 614a392e1cce882745cdf130fe37fdf86bbd9b9a (diff) | |
| download | linux-30d8bead5a309492d1dae2f6511a0465fe6ad05e.tar.xz | |
ARM: EXYNOS4: Implement kernel timers using MCT
The Multi-Core Timer(MCT) of EXYNOS4 is designed for implementing
clock source timer and clock event timers. This patch implements
1 clock source timer with 64 bit free running counter of MCT and
2 clock event timers with two of 31-bit tick counters.
Signed-off-by: Changhwan Youn <chaos.youn@samsung.com>
Cc: Ben Dooks <ben-linux@fluff.org>
Cc: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Diffstat (limited to 'arch/arm/mach-exynos4/include')
| -rw-r--r-- | arch/arm/mach-exynos4/include/mach/regs-mct.h | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/arch/arm/mach-exynos4/include/mach/regs-mct.h b/arch/arm/mach-exynos4/include/mach/regs-mct.h new file mode 100644 index 000000000000..ca9c8434b023 --- /dev/null +++ b/arch/arm/mach-exynos4/include/mach/regs-mct.h @@ -0,0 +1,52 @@ +/* arch/arm/mach-exynos4/include/mach/regs-mct.h + * + * Copyright (c) 2011 Samsung Electronics Co., Ltd. + * http://www.samsung.com + * + * EXYNOS4 MCT configutation + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. +*/ + +#ifndef __ASM_ARCH_REGS_MCT_H +#define __ASM_ARCH_REGS_MCT_H __FILE__ + +#include <mach/map.h> + +#define EXYNOS4_MCTREG(x) (S5P_VA_SYSTIMER + (x)) + +#define EXYNOS4_MCT_G_CNT_L EXYNOS4_MCTREG(0x100) +#define EXYNOS4_MCT_G_CNT_U EXYNOS4_MCTREG(0x104) +#define EXYNOS4_MCT_G_CNT_WSTAT EXYNOS4_MCTREG(0x110) + +#define EXYNOS4_MCT_G_COMP0_L EXYNOS4_MCTREG(0x200) +#define EXYNOS4_MCT_G_COMP0_U EXYNOS4_MCTREG(0x204) +#define EXYNOS4_MCT_G_COMP0_ADD_INCR EXYNOS4_MCTREG(0x208) + +#define EXYNOS4_MCT_G_TCON EXYNOS4_MCTREG(0x240) + +#define EXYNOS4_MCT_G_INT_CSTAT EXYNOS4_MCTREG(0x244) +#define EXYNOS4_MCT_G_INT_ENB EXYNOS4_MCTREG(0x248) +#define EXYNOS4_MCT_G_WSTAT EXYNOS4_MCTREG(0x24C) + +#define EXYNOS4_MCT_L0_BASE EXYNOS4_MCTREG(0x300) +#define EXYNOS4_MCT_L1_BASE EXYNOS4_MCTREG(0x400) + +#define MCT_L_TCNTB_OFFSET (0x00) +#define MCT_L_ICNTB_OFFSET (0x08) +#define MCT_L_TCON_OFFSET (0x20) +#define MCT_L_INT_CSTAT_OFFSET (0x30) +#define MCT_L_INT_ENB_OFFSET (0x34) +#define MCT_L_WSTAT_OFFSET (0x40) + +#define MCT_G_TCON_START (1 << 8) +#define MCT_G_TCON_COMP0_AUTO_INC (1 << 1) +#define MCT_G_TCON_COMP0_ENABLE (1 << 0) + +#define MCT_L_TCON_INTERVAL_MODE (1 << 2) +#define MCT_L_TCON_INT_START (1 << 1) +#define MCT_L_TCON_TIMER_START (1 << 0) + +#endif /* __ASM_ARCH_REGS_MCT_H */ |