65cc0e2a65
The rest of the unmigrated CONFIG symbols in the CONFIG_SYS namespace do not easily transition to Kconfig. In many cases they likely should come from the device tree instead. Move these out of CONFIG namespace and in to CFG namespace. Signed-off-by: Tom Rini <trini@konsulko.com> Reviewed-by: Simon Glass <sjg@chromium.org>
88 lines
1.6 KiB
C
88 lines
1.6 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* (C) Copyright 2012 Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
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* (C) Copyright 2012 Renesas Solutions Corp.
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*/
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#include <common.h>
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#include <div64.h>
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#include <init.h>
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#include <time.h>
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#include <asm/io.h>
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#include <asm/arch-armv7/globaltimer.h>
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#include <asm/arch/rmobile.h>
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#include <linux/delay.h>
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static struct globaltimer *global_timer = \
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(struct globaltimer *)GLOBAL_TIMER_BASE_ADDR;
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#define CLK2MHZ(clk) (clk / 1000 / 1000)
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static u64 get_cpu_global_timer(void)
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{
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u32 low, high;
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u64 timer;
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u32 old = readl(&global_timer->cnt_h);
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while (1) {
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low = readl(&global_timer->cnt_l);
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high = readl(&global_timer->cnt_h);
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if (old == high)
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break;
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else
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old = high;
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}
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timer = high;
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return (u64)((timer << 32) | low);
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}
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static u64 get_time_us(void)
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{
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u64 timer = get_cpu_global_timer();
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timer = ((timer << 2) + (CLK2MHZ(CFG_SYS_CPU_CLK) >> 1));
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do_div(timer, CLK2MHZ(CFG_SYS_CPU_CLK));
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return timer;
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}
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static ulong get_time_ms(void)
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{
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u64 us = get_time_us();
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do_div(us, 1000);
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return us;
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}
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int timer_init(void)
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{
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writel(0x01, &global_timer->ctl);
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return 0;
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}
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void __udelay(unsigned long usec)
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{
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u64 start, current;
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u64 wait;
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start = get_cpu_global_timer();
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wait = (u64)((usec * CLK2MHZ(CFG_SYS_CPU_CLK)) >> 2);
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do {
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current = get_cpu_global_timer();
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} while ((current - start) < wait);
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}
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ulong get_timer(ulong base)
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{
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return get_time_ms() - base;
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}
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unsigned long long get_ticks(void)
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{
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return get_cpu_global_timer();
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}
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ulong get_tbclk(void)
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{
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return (ulong)(CFG_SYS_CPU_CLK >> 2);
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}
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