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linux/arch/arm/mach-exynos/include/mach/regs-mct.h

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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>
2011-03-11 09:39:57 +08:00
/* 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)
ARM: EXYNOS4: Add MCT support for EXYNOS4412 Current MCT implementation only provide 2 event timers, thus cannot support EXYNOS4412 which has 4 CPU cores. This patch fixes MCT implementation to support SoCs with 4 cores. Signed-off-by: Changhwan Youn <chaos.youn@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-10-04 16:09:26 +08:00
#define _EXYNOS4_MCT_L_BASE EXYNOS4_MCTREG(0x300)
#define EXYNOS4_MCT_L_BASE(x) (_EXYNOS4_MCT_L_BASE + (0x100 * x))
#define EXYNOS4_MCT_L_MASK (0xffffff00)
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>
2011-03-11 09:39:57 +08:00
#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 */