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| author | Alexey Brodkin <Alexey.Brodkin@synopsys.com> | 2014-02-04 12:56:14 +0400 |
|---|---|---|
| committer | Tom Rini <trini@ti.com> | 2014-02-07 08:14:32 -0500 |
| commit | 2f16ac9df4d898ab7266f768f125a638c7c5add8 (patch) | |
| tree | f45e5d608b684b8024e15ac5d0cef37e344d10ab /arch/arc/cpu/arc700/timer.c | |
| parent | 288aaacf2de5507f33c0bb26eb063f2f69033dd6 (diff) | |
| download | u-boot-imx-2f16ac9df4d898ab7266f768f125a638c7c5add8.zip u-boot-imx-2f16ac9df4d898ab7266f768f125a638c7c5add8.tar.gz u-boot-imx-2f16ac9df4d898ab7266f768f125a638c7c5add8.tar.bz2 | |
arc: add cpu files
Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
Cc: Vineet Gupta <vgupta@synopsys.com>
Cc: Francois Bedard <fbedard@synopsys.com>
Cc: Wolfgang Denk <wd@denx.de>
Cc: Heiko Schocher <hs@denx.de>
Diffstat (limited to 'arch/arc/cpu/arc700/timer.c')
| -rw-r--r-- | arch/arc/cpu/arc700/timer.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/arch/arc/cpu/arc700/timer.c b/arch/arc/cpu/arc700/timer.c new file mode 100644 index 0000000..a0acbbc --- /dev/null +++ b/arch/arc/cpu/arc700/timer.c @@ -0,0 +1,24 @@ +/* + * Copyright (C) 2013-2014 Synopsys, Inc. All rights reserved. + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <asm/arcregs.h> + +#define NH_MODE (1 << 1) /* Disable timer if CPU is halted */ + +int timer_init(void) +{ + write_aux_reg(ARC_AUX_TIMER0_CTRL, NH_MODE); + /* Set max value for counter/timer */ + write_aux_reg(ARC_AUX_TIMER0_LIMIT, 0xffffffff); + /* Set initial count value and restart counter/timer */ + write_aux_reg(ARC_AUX_TIMER0_CNT, 0); + return 0; +} + +unsigned long timer_read_counter(void) +{ + return read_aux_reg(ARC_AUX_TIMER0_CNT); +} |