diff options
Diffstat (limited to 'arch/arm/cpu/armv7/uniphier/timer.c')
-rw-r--r-- | arch/arm/cpu/armv7/uniphier/timer.c | 39 |
1 files changed, 0 insertions, 39 deletions
diff --git a/arch/arm/cpu/armv7/uniphier/timer.c b/arch/arm/cpu/armv7/uniphier/timer.c deleted file mode 100644 index 6edc084..0000000 --- a/arch/arm/cpu/armv7/uniphier/timer.c +++ /dev/null @@ -1,39 +0,0 @@ -/* - * Copyright (C) 2012-2014 Panasonic Corporation - * Author: Masahiro Yamada <yamada.m@jp.panasonic.com> - * - * SPDX-License-Identifier: GPL-2.0+ - */ - -#include <common.h> -#include <asm/io.h> -#include <asm/arch/arm-mpcore.h> - -#define PERIPHCLK (50 * 1000 * 1000) /* 50 MHz */ -#define PRESCALER ((PERIPHCLK) / (CONFIG_SYS_TIMER_RATE) - 1) - -static void *get_global_timer_base(void) -{ - void *val; - - asm("mrc p15, 4, %0, c15, c0, 0" : "=r" (val) : : "memory"); - - return val + GLOBAL_TIMER_OFFSET; -} - -unsigned long timer_read_counter(void) -{ - /* - * ARM 64bit Global Timer is too much for our purpose. - * We use only lower 32 bit of the timer counter. - */ - return readl(get_global_timer_base() + GTIMER_CNT_L); -} - -int timer_init(void) -{ - /* enable timer */ - writel(PRESCALER << 8 | 1, get_global_timer_base() + GTIMER_CTRL); - - return 0; -} |