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Diffstat (limited to 'arch/mips/ar7/time.c')
-rw-r--r-- | arch/mips/ar7/time.c | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/arch/mips/ar7/time.c b/arch/mips/ar7/time.c new file mode 100644 index 000000000..72aa77d70 --- /dev/null +++ b/arch/mips/ar7/time.c @@ -0,0 +1,31 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Carsten Langgaard, carstenl@mips.com + * Copyright (C) 1999,2000 MIPS Technologies, Inc. All rights reserved. + * + * Setting up the clock on the MIPS boards. + */ + +#include <linux/init.h> +#include <linux/time.h> +#include <linux/err.h> +#include <linux/clk.h> + +#include <asm/time.h> +#include <asm/mach-ar7/ar7.h> + +void __init plat_time_init(void) +{ + struct clk *cpu_clk; + + /* Initialize ar7 clocks so the CPU clock frequency is correct */ + ar7_init_clocks(); + + cpu_clk = clk_get(NULL, "cpu"); + if (IS_ERR(cpu_clk)) { + printk(KERN_ERR "unable to get cpu clock\n"); + return; + } + + mips_hpt_frequency = clk_get_rate(cpu_clk) / 2; +} |