/* * Carsten Langgaard, carstenl@mips.com * Copyright (C) 1999,2000 MIPS Technologies, Inc. All rights reserved. * * This program is free software; you can distribute it and/or modify it * under the terms of the GNU General Public License (Version 2) as * published by the Free Software Foundation. * * This program is distributed in the hope it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * for more details. * * You should have received a copy of the GNU General Public License along * with this program; if not, write to the Free Software Foundation, Inc., * 59 Temple Place - Suite 330, Boston MA 02111-1307, USA. * * 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; }