/* * (C) Copyright 2003 * Wolfgang Denk, DENX Software Engineering, wd@denx.de. * * See file CREDITS for list of people who contributed to this * project. * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License as * published by the Free Software Foundation; either version 2 of * the License, or (at your option) any later version. * * This program is distributed in the hope that 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 */ #include <common.h> #include <asm/ar9.h> ulong ifx_get_ddr_hz(void) { switch((*AR9_CGU_SYS) & 0x05) { case 0x01: case 0x05: return CLOCK_111M; case 0x00: case 0x04: return CLOCK_166M; } return 0; } ulong ifx_get_cpuclk(void) { switch((*AR9_CGU_SYS) & 0x05) { case 0x00: case 0x01: return CLOCK_333M; case 0x04: return CLOCK_166M; case 0x05: return CLOCK_111M; } return 0; } ulong get_bus_freq(ulong dummy) { unsigned int ddr_clock=ifx_get_ddr_hz(); if((*AR9_CGU_SYS) & 0x40){ return ddr_clock/2; } else { return ddr_clock; } }