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author | Stefano Babic <sbabic@denx.de> | 2015-02-13 11:17:01 +0100 |
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committer | Stefano Babic <sbabic@denx.de> | 2015-02-13 11:17:01 +0100 |
commit | e72d344386bf80738fab7a6bd37cb321f443093a (patch) | |
tree | d3e02055e6aa903ab80ef87c78d2f38e93981dcf /arch/arc/lib/timer.c | |
parent | 258c98f8d36ef35d7cb7604847ba73e64d702c2a (diff) | |
parent | bd2a4888b123713adec271d6c8040ca9f609aa2f (diff) | |
download | u-boot-imx-e72d344386bf80738fab7a6bd37cb321f443093a.zip u-boot-imx-e72d344386bf80738fab7a6bd37cb321f443093a.tar.gz u-boot-imx-e72d344386bf80738fab7a6bd37cb321f443093a.tar.bz2 |
Merge branch 'master' of git://git.denx.de/u-boot
Diffstat (limited to 'arch/arc/lib/timer.c')
-rw-r--r-- | arch/arc/lib/timer.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/arch/arc/lib/timer.c b/arch/arc/lib/timer.c new file mode 100644 index 0000000..a0acbbc --- /dev/null +++ b/arch/arc/lib/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); +} |