diff options
Diffstat (limited to 'ANDROID_3.4.5/arch/arm/mach-at91/at91x40_time.c')
| -rw-r--r-- | ANDROID_3.4.5/arch/arm/mach-at91/at91x40_time.c | 86 |
1 files changed, 0 insertions, 86 deletions
diff --git a/ANDROID_3.4.5/arch/arm/mach-at91/at91x40_time.c b/ANDROID_3.4.5/arch/arm/mach-at91/at91x40_time.c deleted file mode 100644 index 6ca680a1..00000000 --- a/ANDROID_3.4.5/arch/arm/mach-at91/at91x40_time.c +++ /dev/null @@ -1,86 +0,0 @@ -/* - * arch/arm/mach-at91/at91x40_time.c - * - * (C) Copyright 2007, Greg Ungerer <gerg@snapgear.com> - * - * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - */ - -#include <linux/kernel.h> -#include <linux/init.h> -#include <linux/interrupt.h> -#include <linux/irq.h> -#include <linux/time.h> -#include <linux/io.h> -#include <mach/hardware.h> -#include <asm/mach/time.h> -#include <mach/at91_tc.h> - -#define at91_tc_read(field) \ - __raw_readl(AT91_TC + field) - -#define at91_tc_write(field, value) \ - __raw_writel(value, AT91_TC + field); - -/* - * 3 counter/timer units present. - */ -#define AT91_TC_CLK0BASE 0 -#define AT91_TC_CLK1BASE 0x40 -#define AT91_TC_CLK2BASE 0x80 - -static unsigned long at91x40_gettimeoffset(void) -{ - return (at91_tc_read(AT91_TC_CLK1BASE + AT91_TC_CV) * 1000000 / (AT91X40_MASTER_CLOCK / 128)); -} - -static irqreturn_t at91x40_timer_interrupt(int irq, void *dev_id) -{ - at91_tc_read(AT91_TC_CLK1BASE + AT91_TC_SR); - timer_tick(); - return IRQ_HANDLED; -} - -static struct irqaction at91x40_timer_irq = { - .name = "at91_tick", - .flags = IRQF_DISABLED | IRQF_TIMER, - .handler = at91x40_timer_interrupt -}; - -void __init at91x40_timer_init(void) -{ - unsigned int v; - - at91_tc_write(AT91_TC_BCR, 0); - v = at91_tc_read(AT91_TC_BMR); - v = (v & ~AT91_TC_TC1XC1S) | AT91_TC_TC1XC1S_NONE; - at91_tc_write(AT91_TC_BMR, v); - - at91_tc_write(AT91_TC_CLK1BASE + AT91_TC_CCR, AT91_TC_CLKDIS); - at91_tc_write(AT91_TC_CLK1BASE + AT91_TC_CMR, (AT91_TC_TIMER_CLOCK4 | AT91_TC_CPCTRG)); - at91_tc_write(AT91_TC_CLK1BASE + AT91_TC_IDR, 0xffffffff); - at91_tc_write(AT91_TC_CLK1BASE + AT91_TC_RC, (AT91X40_MASTER_CLOCK / 128) / HZ - 1); - at91_tc_write(AT91_TC_CLK1BASE + AT91_TC_IER, (1<<4)); - - setup_irq(AT91X40_ID_TC1, &at91x40_timer_irq); - - at91_tc_write(AT91_TC_CLK1BASE + AT91_TC_CCR, (AT91_TC_SWTRG | AT91_TC_CLKEN)); -} - -struct sys_timer at91x40_timer = { - .init = at91x40_timer_init, - .offset = at91x40_gettimeoffset, -}; - |