/* * (C) Copyright 2004 * DAVE Srl * http://www.dave-tech.it * http://www.wawnet.biz * mailto:info@wawnet.biz * * 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 <command.h> #include <asm/hardware.h> static void s3c44b0_flush_cache(void) { volatile int i; /* flush cycle */ for(i=0x10002000;i<0x10004800;i+=16) { *((int *)i)=0x0; } } void icache_enable (void) { ulong reg; s3c44b0_flush_cache(); /* Init cache Non-cacheable area (everything outside RAM) 0x0000:0000 - 0x0C00:0000 */ NCACHBE0 = 0xC0000000; NCACHBE1 = 0x00000000; /* Enable chache */ reg = SYSCFG; reg |= 0x00000006; /* 8kB */ SYSCFG = reg; } void icache_disable (void) { ulong reg; reg = SYSCFG; reg &= ~0x00000006; /* 8kB */ SYSCFG = reg; } int icache_status (void) { return 0; } void dcache_enable (void) { icache_enable(); } void dcache_disable (void) { icache_disable(); } int dcache_status (void) { return dcache_status(); }