diff options
Diffstat (limited to 'src/cpu/samsung/exynos5250/timer.c')
| -rw-r--r-- | src/cpu/samsung/exynos5250/timer.c | 84 |
1 files changed, 15 insertions, 69 deletions
diff --git a/src/cpu/samsung/exynos5250/timer.c b/src/cpu/samsung/exynos5250/timer.c index e7cadc3b9d..405effac5b 100644 --- a/src/cpu/samsung/exynos5250/timer.c +++ b/src/cpu/samsung/exynos5250/timer.c @@ -1,16 +1,11 @@ /* - * Copyright (C) 2009 Samsung Electronics - * Heungjun Kim <riverful.kim@samsung.com> - * Inki Dae <inki.dae@samsung.com> - * Minkyu Kang <mk7.kang@samsung.com> + * This file is part of the coreboot project. * - * See file CREDITS for list of people who contributed to this - * project. + * Copyright (C) 2009 Samsung Electronics * - * 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 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; version 2 of the License. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of @@ -19,22 +14,18 @@ * * 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 + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */ -#include <common.h> +#include <console/console.h> #include <arch/io.h> #include <timer.h> -#include <console/console.h> -#include <cpu/samsung/exynos5250/pwm.h> -#include <cpu/samsung/exynos5250/clk.h> -#include <cpu/samsung/exynos5250/cpu.h> -#include <cpu/samsung/exynos5250/exynos5-common.h> +#include <delay.h> +#include "timer.h" +#include "pwm.h" +#include "clk.h" +#include "cpu.h" -//#include <pwm.h> - -//DECLARE_GLOBAL_DATA_PTR; static unsigned long long timer_reset_value; static unsigned long lastinc; @@ -59,7 +50,7 @@ static unsigned long timer_get_us_down(void) return readl(&timer->tcnto4); } -int init_timer(void) +void init_timer(void) { /* Timer may have been enabled in SPL */ if (!pwm_check_enabled(4)) { @@ -69,15 +60,11 @@ int init_timer(void) pwm_enable(4); /* Use this as the current monotonic time in us */ - //gd->timer_reset_value = 0; timer_reset_value = 0; /* Use this as the last timer value we saw */ - //gd->lastinc = timer_get_us_down(); lastinc = timer_get_us_down(); } - - return 0; } /* @@ -92,13 +79,6 @@ unsigned long get_timer(unsigned long base) * The timer may have wrapped around, but it makes no difference to * our arithmetic here. */ -#if 0 - gd->timer_reset_value += gd->lastinc - now; - gd->lastinc = now; - - /* Divide by 1000 to convert from us to ms */ - return gd->timer_reset_value / 1000 - base; -#endif timer_reset_value += lastinc - now; lastinc = now; @@ -106,20 +86,8 @@ unsigned long get_timer(unsigned long base) return timer_reset_value / 1000 - base; } -unsigned long timer_get_us(void) -{ - struct s5p_timer *const timer = s5p_get_base_timer(); - unsigned long now_downward_us = readl(&timer->tcnto4); - - /* - * Note that this timer counts downward. The pre-SPL process (BL1) - * takes about 100ms, so add this in here. - */ - return CONFIG_SPL_TIME_US - now_downward_us; -} - /* delay x useconds */ -void udelay(unsigned long usec) +void udelay(unsigned usec) { struct mono_time current, end; @@ -128,7 +96,7 @@ void udelay(unsigned long usec) mono_time_add_usecs(&end, usec); if (mono_time_after(¤t, &end)) { - printk(BIOS_EMERG, "udelay: 0x%08lx is impossibly large\n", + printk(BIOS_EMERG, "udelay: 0x%08x is impossibly large\n", usec); /* There's not much we can do if usec is too big. Use a long, * paranoid delay value and hope for the best... */ @@ -140,25 +108,3 @@ void udelay(unsigned long usec) timer_monotonic_get(¤t); } -/* - * This function is derived from PowerPC code (read timebase as long long). - * On ARM it just returns the timer value. - */ -unsigned long long get_ticks(void) -{ - return get_timer(0); -} - -/* - * This function is derived from PowerPC code (timebase clock frequency). - * On ARM it returns the number of timer ticks per second. - */ -unsigned long get_tbclk(void) -{ - return CONFIG_SYS_HZ; -} - -unsigned long timer_get_boot_us(void) -{ - return timer_get_us(); -} |