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https://github.com/brain-hackers/u-boot-brain
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8b39df9e78
The header contains only the TMU register layout, just inline it into the TMU timer implementation and drop the header completely. Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
87 lines
1.4 KiB
C
87 lines
1.4 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* (C) Copyright 2009
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* Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
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*
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* (C) Copyright 2007-2012
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* Nobobuhiro Iwamatsu <iwamatsu@nigauri.org>
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*
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* (C) Copyright 2003
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* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
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*/
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#include <common.h>
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#include <asm/processor.h>
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#include <asm/io.h>
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#if defined(CONFIG_CPU_SH3)
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struct tmu_regs {
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u8 tocr;
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u8 reserved0;
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u8 tstr;
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u8 reserved1;
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u32 tcor0;
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u32 tcnt0;
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u16 tcr0;
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u16 reserved2;
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u32 tcor1;
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u32 tcnt1;
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u16 tcr1;
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u16 reserved3;
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u32 tcor2;
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u32 tcnt2;
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u16 tcr2;
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u16 reserved4;
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u32 tcpr2;
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};
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#endif /* CONFIG_CPU_SH3 */
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#if defined(CONFIG_CPU_SH4) || defined(CONFIG_ARCH_RMOBILE)
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struct tmu_regs {
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u32 reserved;
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u8 tstr;
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u8 reserved2[3];
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u32 tcor0;
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u32 tcnt0;
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u16 tcr0;
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u16 reserved3;
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u32 tcor1;
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u32 tcnt1;
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u16 tcr1;
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u16 reserved4;
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u32 tcor2;
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u32 tcnt2;
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u16 tcr2;
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u16 reserved5;
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};
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#endif /* CONFIG_CPU_SH4 */
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#define TCR_TPSC 0x07
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#define TSTR_STR0 BIT(0)
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static struct tmu_regs *tmu = (struct tmu_regs *)TMU_BASE;
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unsigned long get_tbclk(void)
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{
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#ifdef CONFIG_RCAR_GEN2
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return CONFIG_SYS_CLK_FREQ / 8;
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#else
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return CONFIG_SYS_CLK_FREQ / 4;
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#endif
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}
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unsigned long timer_read_counter(void)
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{
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return ~readl(&tmu->tcnt0);
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}
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int timer_init(void)
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{
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writew(readw(&tmu->tcr0) & ~TCR_TPSC, &tmu->tcr0);
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writeb(readb(&tmu->tstr) & ~TSTR_STR0, &tmu->tstr);
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writeb(readb(&tmu->tstr) | TSTR_STR0, &tmu->tstr);
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return 0;
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}
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