X-Git-Url: http://git.openwrt.org/?p=openwrt%2Fsvn-archive%2Farchive.git;a=blobdiff_plain;f=package%2Fuboot-lantiq%2Ffiles%2Fcpu%2Fmips%2Far9-clock.c;fp=package%2Fuboot-lantiq%2Ffiles%2Fcpu%2Fmips%2Far9-clock.c;h=a8aecb4225bcef3254a847219174875a2ad81afe;hp=0000000000000000000000000000000000000000;hb=b2960ea60a9c7b1115e9d67ce78e43ab58eb417d;hpb=d161276f3688f67cfd7795dcb38d8b1786c4da45 diff --git a/package/uboot-lantiq/files/cpu/mips/ar9-clock.c b/package/uboot-lantiq/files/cpu/mips/ar9-clock.c new file mode 100644 index 0000000000..a8aecb4225 --- /dev/null +++ b/package/uboot-lantiq/files/cpu/mips/ar9-clock.c @@ -0,0 +1,67 @@ +/* + * (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 +#include + +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; + } +}