blob: dca6a4da4a0ab83a2487b8c36e328876a1b2b1bb [file] [log] [blame]
Kumar Gala83d40df2008-01-16 01:13:58 -06001/*
2 * Copyright 2008 Freescale Semiconductor, Inc.
3 *
4 * (C) Copyright 2000
5 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
6 *
7 * See file CREDITS for list of people who contributed to this
8 * project.
9 *
10 * This program is free software; you can redistribute it and/or
11 * modify it under the terms of the GNU General Public License as
12 * published by the Free Software Foundation; either version 2 of
13 * the License, or (at your option) any later version.
14 *
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
19 *
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
23 * MA 02111-1307 USA
24 */
25
26#include <common.h>
27#include <asm/fsl_law.h>
28#include <asm/io.h>
29
30#define LAWAR_EN 0x80000000
Becky Bruceddcebcb2008-01-23 16:31:05 -060031#define FSL_HW_NUM_LAWS 10 /* number of LAWs in the hw implementation */
Kumar Gala83d40df2008-01-16 01:13:58 -060032
33void set_law(u8 idx, phys_addr_t addr, enum law_size sz, enum law_trgt_if id)
34{
35 volatile u32 *base = (volatile u32 *)(CFG_IMMR + 0xc08);
36 volatile u32 *lawbar = base + 8 * idx;
37 volatile u32 *lawar = base + 8 * idx + 2;
38
39 out_be32(lawbar, addr >> 12);
40 out_be32(lawar, LAWAR_EN | ((u32)id << 20) | (u32)sz);
41
42 return ;
43}
44
45void disable_law(u8 idx)
46{
47 volatile u32 *base = (volatile u32 *)(CFG_IMMR + 0xc08);
48 volatile u32 *lawbar = base + 8 * idx;
49 volatile u32 *lawar = base + 8 * idx + 2;
50
51 out_be32(lawar, 0);
52 out_be32(lawbar, 0);
53
54 return;
55}
56
Becky Bruceddcebcb2008-01-23 16:31:05 -060057void print_laws(void)
58{
59 volatile u32 *base = (volatile u32 *)(CFG_IMMR + 0xc08);
60 volatile u32 *lawbar = base;
61 volatile u32 *lawar = base + 2;
62 int i;
63
64 printf("\nLocal Access Window Configuration\n");
65 for(i = 0; i < FSL_HW_NUM_LAWS; i++) {
66 printf("\tLAWBAR%d : 0x%08x, LAWAR%d : 0x%08x\n",
67 i, in_be32(lawbar), i, in_be32(lawar));
68 lawbar += 8;
69 lawar += 8;
70 }
71
72 return;
73}
74
Kumar Gala83d40df2008-01-16 01:13:58 -060075void init_laws(void)
76{
77 int i;
78 u8 law_idx = 0;
79
80 for (i = 0; i < num_law_entries; i++) {
81 if (law_table[i].index != -1)
82 law_idx = law_table[i].index;
83
84 set_law(law_idx++, law_table[i].addr,
85 law_table[i].size, law_table[i].trgt_id);
86 }
87
88 return ;
89}