| /* |
| * 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; |
| } |