1 // SPDX-License-Identifier: GPL-2.0+
4 * Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
6 * (C) Copyright 2007-2012
7 * Nobobuhiro Iwamatsu <iwamatsu@nigauri.org>
10 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
14 #include <asm/processor.h>
19 #define TSTR_STR0 BIT(0)
21 static struct tmu_regs *tmu = (struct tmu_regs *)TMU_BASE;
23 unsigned long get_tbclk(void)
25 return CONFIG_SH_TMU_CLK_FREQ / 4;
28 unsigned long timer_read_counter(void)
30 return ~readl(&tmu->tcnt0);
35 writew(readw(&tmu->tcr0) & ~TCR_TPSC, &tmu->tcr0);
36 writeb(readb(&tmu->tstr) & ~TSTR_STR0, &tmu->tstr);
37 writeb(readb(&tmu->tstr) | TSTR_STR0, &tmu->tstr);