From 05c930e80a27d5caac4ab057a906a075f59635ea Mon Sep 17 00:00:00 2001 From: ralph Date: Tue, 30 Mar 2010 13:56:30 +0000 Subject: [uboot-lantiq] add preliminary AR9 support attention: if caches enabled the network is broken attention: the network of the flash image doesn't work because of enabled caches git-svn-id: svn://svn.openwrt.org/openwrt/trunk@20606 3c298f89-4303-0410-b956-a3cf2f4a3e73 --- package/uboot-lantiq/files/cpu/mips/ar9/clock.c | 67 +++++++++++++++++++++++++ 1 file changed, 67 insertions(+) create mode 100644 package/uboot-lantiq/files/cpu/mips/ar9/clock.c (limited to 'package/uboot-lantiq/files/cpu/mips/ar9/clock.c') 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 000000000..a8aecb422 --- /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; + } +} -- cgit v1.2.3