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Commit 5f3545f6 authored by Kukjin Kim's avatar Kukjin Kim Committed by Ben Dooks
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ARM: S5P6440: Add Timer support



This patch adds timer support for S5P6440 CPU.

Signed-off-by: default avatarAtul Dahiya <atul.dahiya@samsung.com>
Signed-off-by: default avatarKukjin Kim <kgene.kim@samsung.com>
Signed-off-by: default avatarBen Dooks <ben-linux@fluff.org>
parent b7db51be
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/* linux/arch/arm/mach-s5p6440/include/mach/pwm-clock.h
 *
 * Copyright 2008 Simtec Electronics
 *      Ben Dooks <ben@simtec.co.uk>
 *      http://armlinux.simtec.co.uk/
 *
 * Copyright 2009 Samsung Electronics Co., Ltd.
 *		http://www.samsung.com/
 *
 * S5P6440 - pwm clock and timer support
 *
 * 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.
*/

/**
 * pwm_cfg_src_is_tclk() - return whether the given mux config is a tclk
 * @cfg: The timer TCFG1 register bits shifted down to 0.
 *
 * Return true if the given configuration from TCFG1 is a TCLK instead
 * any of the TDIV clocks.
 */
static inline int pwm_cfg_src_is_tclk(unsigned long tcfg)
{
	return tcfg == S3C2410_TCFG1_MUX_TCLK;
}

/**
 * tcfg_to_divisor() - convert tcfg1 setting to a divisor
 * @tcfg1: The tcfg1 setting, shifted down.
 *
 * Get the divisor value for the given tcfg1 setting. We assume the
 * caller has already checked to see if this is not a TCLK source.
 */
static inline unsigned long tcfg_to_divisor(unsigned long tcfg1)
{
	return 1 << (1 + tcfg1);
}

/**
 * pwm_tdiv_has_div1() - does the tdiv setting have a /1
 *
 * Return true if we have a /1 in the tdiv setting.
 */
static inline unsigned int pwm_tdiv_has_div1(void)
{
	return 0;
}

/**
 * pwm_tdiv_div_bits() - calculate TCFG1 divisor value.
 * @div: The divisor to calculate the bit information for.
 *
 * Turn a divisor into the necessary bit field for TCFG1.
 */
static inline unsigned long pwm_tdiv_div_bits(unsigned int div)
{
	return ilog2(div) - 1;
}

#define S3C_TCFG1_MUX_TCLK S3C2410_TCFG1_MUX_TCLK
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/* linux/arch/arm/mach-s5p6440/include/mach/tick.h
 *
 * Copyright (c) 2009 Samsung Electronics Co., Ltd.
 *		http://www.samsung.com/
 *
 * S5P6440 - Timer tick support definitions
 *
 * 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_TICK_H
#define __ASM_ARCH_TICK_H __FILE__

static inline u32 s3c24xx_ostimer_pending(void)
{
	u32 pend = __raw_readl(S5P_VA_VIC0 + VIC_RAW_STATUS);
	return pend & (1 << (IRQ_TIMER4_VIC - S5P_IRQ_VIC0(0)));
}

#define TICK_MAX	(0xffffffff)

#endif /* __ASM_ARCH_TICK_H */