source: SVN/rincon/u-boot/board/amcc/luan/flash.c @ 55

Last change on this file since 55 was 55, checked in by Tim Harvey, 22 months ago

rincon: added latest u-boot source

restored form server backup

Signed-off-by: Tim Harvey <tharvey@…>

File size: 3.1 KB
Line 
1/*
2 * (C) Copyright 2002
3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
4 *
5 * (C) Copyright 2002 Jun Gu <jung@artesyncp.com>
6 * Add support for Am29F016D and dynamic switch setting.
7 *
8 * See file CREDITS for list of people who contributed to this
9 * project.
10 *
11 * This program is free software; you can redistribute it and/or
12 * modify it under the terms of the GNU General Public License as
13 * published by the Free Software Foundation; either version 2 of
14 * the License, or (at your option) any later version.
15 *
16 * This program is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
19 * GNU General Public License for more details.
20 *
21 * You should have received a copy of the GNU General Public License
22 * along with this program; if not, write to the Free Software
23 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
24 * MA 02111-1307 USA
25 */
26
27/*
28 * Modified 4/5/2001
29 * Wait for completion of each sector erase command issued
30 * 4/5/2001
31 * Chris Hallinan - DS4.COM, Inc. - clh@net1plus.com
32 */
33
34#include <common.h>
35#include <ppc4xx.h>
36#include <asm/processor.h>
37
38#undef DEBUG
39#ifdef DEBUG
40#define DEBUGF(x...) printf(x)
41#else
42#define DEBUGF(x...)
43#endif                          /* DEBUG */
44
45static unsigned long flash_addr_table[1][CFG_MAX_FLASH_BANKS] = {
46        {0xff900000, 0xff980000, 0xffc00000},   /* 0:000: configuraton 3 */
47};
48
49/*
50 * include common flash code (for amcc boards)
51 */
52#include "../common/flash.c"
53
54/*-----------------------------------------------------------------------
55 * Functions
56 */
57static ulong flash_get_size(vu_long * addr, flash_info_t * info);
58
59unsigned long flash_init(void)
60{
61        unsigned long total_b = 0;
62        unsigned long size_b[CFG_MAX_FLASH_BANKS];
63        unsigned short index = 0;
64        int i;
65
66        /* read FPGA base register FPGA_REG0 */
67
68        DEBUGF("\n");
69        DEBUGF("FLASH: Index: %d\n", index);
70
71        /* Init: no FLASHes known */
72        for (i = 0; i < CFG_MAX_FLASH_BANKS; ++i) {
73                flash_info[i].flash_id = FLASH_UNKNOWN;
74                flash_info[i].sector_count = -1;
75                flash_info[i].size = 0;
76
77                /* check whether the address is 0 */
78                if (flash_addr_table[index][i] == 0) {
79                        continue;
80                }
81
82                /* call flash_get_size() to initialize sector address */
83                size_b[i] = flash_get_size((vu_long *)
84                                           flash_addr_table[index][i],
85                                           &flash_info[i]);
86                flash_info[i].size = size_b[i];
87                if (flash_info[i].flash_id == FLASH_UNKNOWN) {
88                        printf("## Unknown FLASH on Bank %d - Size = 0x%08lx = %ld MB\n",
89                               i, size_b[i], size_b[i] << 20);
90                        flash_info[i].sector_count = -1;
91                        flash_info[i].size = 0;
92                }
93
94                /* Monitor protection ON by default */
95                (void)flash_protect(FLAG_PROTECT_SET, CFG_MONITOR_BASE,
96                                    CFG_MONITOR_BASE + CFG_MONITOR_LEN - 1,
97                                    &flash_info[2]);
98#ifdef CONFIG_ENV_IS_IN_FLASH
99                (void)flash_protect(FLAG_PROTECT_SET, CONFIG_ENV_ADDR,
100                                    CONFIG_ENV_ADDR + CONFIG_ENV_SECT_SIZE - 1,
101                                    &flash_info[2]);
102                (void)flash_protect(FLAG_PROTECT_SET, CONFIG_ENV_ADDR_REDUND,
103                                    CONFIG_ENV_ADDR_REDUND + CONFIG_ENV_SECT_SIZE - 1,
104                                    &flash_info[2]);
105#endif
106
107                total_b += flash_info[i].size;
108        }
109
110        return total_b;
111}
Note: See TracBrowser for help on using the repository browser.