/* * Copyright 2008 Freescale Semiconductor, Inc. * * (C) Copyright 2000 * 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/fsl_law.h> #include <asm/io.h> #define LAWAR_EN 0x80000000 #define FSL_HW_NUM_LAWS 10 /* number of LAWs in the hw implementation */ void set_law(u8 idx, phys_addr_t addr, enum law_size sz, enum law_trgt_if id) { volatile u32 *base = (volatile u32 *)(CFG_IMMR + 0xc08); volatile u32 *lawbar = base + 8 * idx; volatile u32 *lawar = base + 8 * idx + 2; out_be32(lawbar, addr >> 12); out_be32(lawar, LAWAR_EN | ((u32)id << 20) | (u32)sz); return ; } void disable_law(u8 idx) { volatile u32 *base = (volatile u32 *)(CFG_IMMR + 0xc08); volatile u32 *lawbar = base + 8 * idx; volatile u32 *lawar = base + 8 * idx + 2; out_be32(lawar, 0); out_be32(lawbar, 0); return; } void print_laws(void) { volatile u32 *base = (volatile u32 *)(CFG_IMMR + 0xc08); volatile u32 *lawbar = base; volatile u32 *lawar = base + 2; int i; printf("\nLocal Access Window Configuration\n"); for(i = 0; i < FSL_HW_NUM_LAWS; i++) { printf("\tLAWBAR%d : 0x%08x, LAWAR%d : 0x%08x\n", i, in_be32(lawbar), i, in_be32(lawar)); lawbar += 8; lawar += 8; } return; } void init_laws(void) { int i; u8 law_idx = 0; for (i = 0; i < num_law_entries; i++) { if (law_table[i].index != -1) law_idx = law_table[i].index; set_law(law_idx++, law_table[i].addr, law_table[i].size, law_table[i].trgt_id); } return ; }