/* * (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 <command.h> #include <asm/mipsregs.h> #include <asm/cacheops.h> #include <asm/reboot.h> #define cache_op(op,addr) \ __asm__ __volatile__( \ " .set push \n" \ " .set noreorder \n" \ " .set mips3\n\t \n" \ " cache %0, %1 \n" \ " .set pop \n" \ : \ : "i" (op), "R" (*(unsigned char *)(addr))) void __attribute__((weak)) _machine_restart(void) { } int do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) { _machine_restart(); fprintf(stderr, "*** reset failed ***\n"); return 0; } void flush_cache(ulong start_addr, ulong size) { unsigned long lsize = CFG_CACHELINE_SIZE; unsigned long addr = start_addr & ~(lsize - 1); unsigned long aend = (start_addr + size - 1) & ~(lsize - 1); while (1) { cache_op(Hit_Writeback_Inv_D, addr); cache_op(Hit_Invalidate_I, addr); if (addr == aend) break; addr += lsize; } } void write_one_tlb(int index, u32 pagemask, u32 hi, u32 low0, u32 low1) { write_c0_entrylo0(low0); write_c0_pagemask(pagemask); write_c0_entrylo1(low1); write_c0_entryhi(hi); write_c0_index(index); tlb_write_indexed(); }