mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-14 07:13:03 +00:00
1b5cf9549f
Convert sh to use the commmon timer code. Remove reset_timer and set_timer as they are unused on sh. Signed-off-by: Rob Herring <rob.herring@calxeda.com>
58 lines
1.1 KiB
C
58 lines
1.1 KiB
C
/*
|
|
* (C) Copyright 2009
|
|
* Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
|
|
*
|
|
* (C) Copyright 2007-2012
|
|
* Nobobuhiro Iwamatsu <iwamatsu@nigauri.org>
|
|
*
|
|
* (C) Copyright 2003
|
|
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0+
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <asm/processor.h>
|
|
#include <asm/io.h>
|
|
#include <sh_tmu.h>
|
|
|
|
#define TCR_TPSC 0x07
|
|
|
|
static struct tmu_regs *tmu = (struct tmu_regs *)TMU_BASE;
|
|
|
|
unsigned long get_tbclk(void)
|
|
{
|
|
u16 tmu_bit = (ffs(CONFIG_SYS_TMU_CLK_DIV) >> 1) - 1;
|
|
return get_tmu0_clk_rate() >> ((tmu_bit + 1) * 2);
|
|
}
|
|
|
|
unsigned long timer_read_counter(void)
|
|
{
|
|
return ~readl(&tmu->tcnt0);
|
|
}
|
|
|
|
static void tmu_timer_start(unsigned int timer)
|
|
{
|
|
if (timer > 2)
|
|
return;
|
|
writeb(readb(&tmu->tstr) | (1 << timer), &tmu->tstr);
|
|
}
|
|
|
|
static void tmu_timer_stop(unsigned int timer)
|
|
{
|
|
if (timer > 2)
|
|
return;
|
|
writeb(readb(&tmu->tstr) & ~(1 << timer), &tmu->tstr);
|
|
}
|
|
|
|
int timer_init(void)
|
|
{
|
|
u16 tmu_bit = (ffs(CONFIG_SYS_TMU_CLK_DIV) >> 1) - 1;
|
|
writew((readw(&tmu->tcr0) & ~TCR_TPSC) | tmu_bit, &tmu->tcr0);
|
|
|
|
tmu_timer_stop(0);
|
|
tmu_timer_start(0);
|
|
|
|
return 0;
|
|
}
|
|
|