diff options
Diffstat (limited to 'roms/u-boot/arch/sh/lib/time.c')
| -rw-r--r-- | roms/u-boot/arch/sh/lib/time.c | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/roms/u-boot/arch/sh/lib/time.c b/roms/u-boot/arch/sh/lib/time.c new file mode 100644 index 000000000..f95154472 --- /dev/null +++ b/roms/u-boot/arch/sh/lib/time.c @@ -0,0 +1,35 @@ +// 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 <common.h> +#include <init.h> +#include <asm/processor.h> +#include <asm/io.h> +#include <linux/bitops.h> + +#if defined(CONFIG_CPU_SH4) || defined(CONFIG_ARCH_RMOBILE) +#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; +} + |