| // SPDX-License-Identifier: GPL-2.0+ | |
| /* | |
| * (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. | |
| */ | |
| #include <init.h> | |
| #include <asm/processor.h> | |
| #include <asm/io.h> | |
| #include <linux/bitops.h> | |
| #if defined(CONFIG_CPU_SH4) || defined(CONFIG_ARCH_RENESAS) | |
| #define TSTR 0x4 | |
| #define TCR0 0x10 | |
| #endif /* CONFIG_CPU_SH4 */ | |
| #define TCR_TPSC 0x07 | |
| #define TSTR_STR0 BIT(0) | |
| int timer_init(void) | |
| { | |
| writew(readw(TMU_BASE + TCR0) & ~TCR_TPSC, TMU_BASE + TCR0); | |
| writeb(readb(TMU_BASE + TSTR) & ~TSTR_STR0, TMU_BASE + TSTR); | |
| writeb(readb(TMU_BASE + TSTR) | TSTR_STR0, TMU_BASE + TSTR); | |
| return 0; | |
| } |