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/*
* mxc_timer.h
*
* Copyright (C) 2008 Juergen Beisert (kernel@pengutronix.de)
*
* Platform independent (i.MX1, i.MX2, i.MX3) definition for timer handling.
*
* 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; either version 2
* of the License, or (at your option) any later version.
* 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. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifndef __PLAT_MXC_TIMER_H
#define __PLAT_MXC_TIMER_H
#include <linux/clk.h>
#include <asm/arch/hardware.h>
#ifdef CONFIG_ARCH_IMX
#define TIMER_BASE IO_ADDRESS(TIM1_BASE_ADDR)
#define TIMER_INTERRUPT TIM1_INT
#define TCTL_VAL TCTL_CLK_PCLK1
#define TCTL_IRQEN (1<<4)
#define TCTL_FRR (1<<8)
#define TCTL_CLK_PCLK1 (1<<1)
#define TCTL_CLK_PCLK1_4 (2<<1)
#define TCTL_CLK_TIN (3<<1)
#define TCTL_CLK_32 (4<<1)
#define MXC_TCTL 0x00
#define MXC_TPRER 0x04
#define MXC_TCMP 0x08
#define MXC_TCR 0x0c
#define MXC_TCN 0x10
#define MXC_TSTAT 0x14
#define TSTAT_CAPT (1<<1)
#define TSTAT_COMP (1<<0)
static inline void gpt_irq_disable(void)
{
unsigned int tmp;
tmp = __raw_readl(TIMER_BASE + MXC_TCTL);
__raw_writel(tmp & ~TCTL_IRQEN, TIMER_BASE + MXC_TCTL);
}
static inline void gpt_irq_enable(void)
{
__raw_writel(__raw_readl(TIMER_BASE + MXC_TCTL) | TCTL_IRQEN,
TIMER_BASE + MXC_TCTL);
}
static void gpt_irq_acknowledge(void)
{
__raw_writel(0, TIMER_BASE + MXC_TSTAT);
}
#endif /* CONFIG_ARCH_IMX */
#ifdef CONFIG_ARCH_MX2
#define TIMER_BASE IO_ADDRESS(GPT1_BASE_ADDR)
#define TIMER_INTERRUPT MXC_INT_GPT1
#define MXC_TCTL 0x00
#define TCTL_VAL TCTL_CLK_PCLK1
#define TCTL_CLK_PCLK1 (1<<1)
#define TCTL_CLK_PCLK1_4 (2<<1)
#define TCTL_IRQEN (1<<4)
#define TCTL_FRR (1<<8)
#define MXC_TPRER 0x04
#define MXC_TCMP 0x08
#define MXC_TCR 0x0c
#define MXC_TCN 0x10
#define MXC_TSTAT 0x14
#define TSTAT_CAPT (1<<1)
#define TSTAT_COMP (1<<0)
static inline void gpt_irq_disable(void)
{
unsigned int tmp;
tmp = __raw_readl(TIMER_BASE + MXC_TCTL);
__raw_writel(tmp & ~TCTL_IRQEN, TIMER_BASE + MXC_TCTL);
}
static inline void gpt_irq_enable(void)
{
__raw_writel(__raw_readl(TIMER_BASE + MXC_TCTL) | TCTL_IRQEN,
TIMER_BASE + MXC_TCTL);
}
static void gpt_irq_acknowledge(void)
{
__raw_writel(TSTAT_CAPT | TSTAT_COMP, TIMER_BASE + MXC_TSTAT);
}
#endif /* CONFIG_ARCH_MX2 */
#ifdef CONFIG_ARCH_MX3
#define TIMER_BASE IO_ADDRESS(GPT1_BASE_ADDR)
#define TIMER_INTERRUPT MXC_INT_GPT
#define MXC_TCTL 0x00
#define TCTL_VAL (TCTL_CLK_IPG | TCTL_WAITEN)
#define TCTL_CLK_IPG (1<<6)
#define TCTL_FRR (1<<9)
#define TCTL_WAITEN (1<<3)
#define MXC_TPRER 0x04
#define MXC_TSTAT 0x08
#define TSTAT_OF1 (1<<0)
#define TSTAT_OF2 (1<<1)
#define TSTAT_OF3 (1<<2)
#define TSTAT_IF1 (1<<3)
#define TSTAT_IF2 (1<<4)
#define TSTAT_ROV (1<<5)
#define MXC_IR 0x0c
#define MXC_TCMP 0x10
#define MXC_TCMP2 0x14
#define MXC_TCMP3 0x18
#define MXC_TCR 0x1c
#define MXC_TCN 0x24
static inline void gpt_irq_disable(void)
{
__raw_writel(0, TIMER_BASE + MXC_IR);
}
static inline void gpt_irq_enable(void)
{
__raw_writel(1<<0, TIMER_BASE + MXC_IR);
}
static inline void gpt_irq_acknowledge(void)
{
__raw_writel(TSTAT_OF1, TIMER_BASE + MXC_TSTAT);
}
#endif /* CONFIG_ARCH_MX3 */
#define TCTL_SWR (1<<15)
#define TCTL_CC (1<<10)
#define TCTL_OM (1<<9)
#define TCTL_CAP_RIS (1<<6)
#define TCTL_CAP_FAL (2<<6)
#define TCTL_CAP_RIS_FAL (3<<6)
#define TCTL_CAP_ENA (1<<5)
#define TCTL_TEN (1<<0)
#endif
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