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Stefan Roese6e7fb6e2005-11-29 18:18:21 +01001/*
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>
Stefan Roeseb36df562010-09-09 19:18:00 +020035#include <asm/ppc4xx.h>
Stefan Roese6e7fb6e2005-11-29 18:18:21 +010036#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
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +020045static unsigned long flash_addr_table[1][CONFIG_SYS_MAX_FLASH_BANKS] = {
Stefan Roese6e7fb6e2005-11-29 18:18:21 +010046 {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;
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +020062 unsigned long size_b[CONFIG_SYS_MAX_FLASH_BANKS];
Stefan Roese6e7fb6e2005-11-29 18:18:21 +010063 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 */
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +020072 for (i = 0; i < CONFIG_SYS_MAX_FLASH_BANKS; ++i) {
Stefan Roese6e7fb6e2005-11-29 18:18:21 +010073 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 */
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +020095 (void)flash_protect(FLAG_PROTECT_SET, CONFIG_SYS_MONITOR_BASE,
96 CONFIG_SYS_MONITOR_BASE + CONFIG_SYS_MONITOR_LEN - 1,
Stefan Roese6e7fb6e2005-11-29 18:18:21 +010097 &flash_info[2]);
Jean-Christophe PLAGNIOL-VILLARD5a1aceb2008-09-10 22:48:04 +020098#ifdef CONFIG_ENV_IS_IN_FLASH
Jean-Christophe PLAGNIOL-VILLARD0e8d1582008-09-10 22:48:06 +020099 (void)flash_protect(FLAG_PROTECT_SET, CONFIG_ENV_ADDR,
100 CONFIG_ENV_ADDR + CONFIG_ENV_SECT_SIZE - 1,
Stefan Roese6e7fb6e2005-11-29 18:18:21 +0100101 &flash_info[2]);
Jean-Christophe PLAGNIOL-VILLARD0e8d1582008-09-10 22:48:06 +0200102 (void)flash_protect(FLAG_PROTECT_SET, CONFIG_ENV_ADDR_REDUND,
103 CONFIG_ENV_ADDR_REDUND + CONFIG_ENV_SECT_SIZE - 1,
Stefan Roese6e7fb6e2005-11-29 18:18:21 +0100104 &flash_info[2]);
105#endif
106
107 total_b += flash_info[i].size;
108 }
109
110 return total_b;
111}