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/*
* (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;
}
}
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