2 * (C) Copyright 2000-2005
3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
5 * See file CREDITS for list of people who contributed to this
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License as
10 * published by the Free Software Foundation; either version 2 of
11 * the License, or (at your option) any later version.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
26 * Wait for completion of each sector erase command issued
28 * Chris Hallinan - DS4.COM, Inc. - clh@net1plus.com
33 #include <asm/processor.h>
37 #define DEBUGF(x...) printf(x)
43 * include common flash code (for amcc boards)
45 #include "../common/flash.c"
47 /*-----------------------------------------------------------------------
50 static ulong
flash_get_size(vu_long
* addr
, flash_info_t
* info
);
51 static void flash_get_offsets(ulong base
, flash_info_t
* info
);
53 unsigned long flash_init(void)
55 unsigned long size_b0
, size_b1
;
58 unsigned long base_b0
, base_b1
;
60 /* Init: no FLASHes known */
61 for (i
= 0; i
< CONFIG_SYS_MAX_FLASH_BANKS
; ++i
) {
62 flash_info
[i
].flash_id
= FLASH_UNKNOWN
;
65 /* Static FLASH Bank configuration here - FIXME XXX */
68 flash_get_size((vu_long
*) FLASH_BASE0_PRELIM
, &flash_info
[0]);
70 if (flash_info
[0].flash_id
== FLASH_UNKNOWN
) {
71 printf("## Unknown FLASH on Bank 0 - Size = 0x%08lx = %ld MB\n",
72 size_b0
, size_b0
<< 20);
76 if (CONFIG_SYS_MAX_FLASH_BANKS
== 1) {
78 flash_get_offsets(FLASH_BASE0_PRELIM
, &flash_info
[0]);
80 /* Monitor protection ON by default */
81 (void)flash_protect(FLAG_PROTECT_SET
,
82 CONFIG_SYS_MONITOR_BASE
,
83 CONFIG_SYS_MONITOR_BASE
+ CONFIG_SYS_MONITOR_LEN
- 1,
85 #ifdef CONFIG_ENV_IS_IN_FLASH
86 (void)flash_protect(FLAG_PROTECT_SET
, CONFIG_ENV_ADDR
,
87 CONFIG_ENV_ADDR
+ CONFIG_ENV_SECT_SIZE
- 1,
89 (void)flash_protect(FLAG_PROTECT_SET
, CONFIG_ENV_ADDR_REDUND
,
90 CONFIG_ENV_ADDR_REDUND
+ CONFIG_ENV_SECT_SIZE
- 1,
95 flash_info
[0].size
= size_b0
;
99 flash_get_size((vu_long
*) FLASH_BASE1_PRELIM
,
102 /* Re-do sizing to get full correct info */
105 mtdcr(ebccfga
, pb0cr
);
106 pbcr
= mfdcr(ebccfgd
);
107 mtdcr(ebccfga
, pb0cr
);
110 (pbcr
& 0x0001ffff) | base_b1
|
111 (((size_b1
/ 1024 / 1024) - 1) << 17);
112 mtdcr(ebccfgd
, pbcr
);
113 /* printf("pb1cr = %x\n", pbcr); */
117 mtdcr(ebccfga
, pb1cr
);
118 pbcr
= mfdcr(ebccfgd
);
119 mtdcr(ebccfga
, pb1cr
);
120 base_b0
= base_b1
- size_b0
;
122 (pbcr
& 0x0001ffff) | base_b0
|
123 (((size_b0
/ 1024 / 1024) - 1) << 17);
124 mtdcr(ebccfgd
, pbcr
);
125 /* printf("pb0cr = %x\n", pbcr); */
128 size_b0
= flash_get_size((vu_long
*) base_b0
, &flash_info
[0]);
130 flash_get_offsets(base_b0
, &flash_info
[0]);
132 /* monitor protection ON by default */
133 (void)flash_protect(FLAG_PROTECT_SET
,
134 base_b0
+ size_b0
- monitor_flash_len
,
135 base_b0
+ size_b0
- 1, &flash_info
[0]);
138 /* Re-do sizing to get full correct info */
140 flash_get_size((vu_long
*) base_b1
, &flash_info
[1]);
142 flash_get_offsets(base_b1
, &flash_info
[1]);
144 /* monitor protection ON by default */
145 (void)flash_protect(FLAG_PROTECT_SET
,
148 base_b1
+ size_b1
- 1,
150 /* monitor protection OFF by default (one is enough) */
151 (void)flash_protect(FLAG_PROTECT_CLEAR
,
154 base_b0
+ size_b0
- 1,
157 flash_info
[1].flash_id
= FLASH_UNKNOWN
;
158 flash_info
[1].sector_count
= -1;
161 flash_info
[0].size
= size_b0
;
162 flash_info
[1].size
= size_b1
;
164 return (size_b0
+ size_b1
);
168 static void flash_get_offsets(ulong base
, flash_info_t
* info
)
172 /* set up sector start address table */
173 if (((info
->flash_id
& FLASH_VENDMASK
) == FLASH_MAN_SST
) ||
174 (info
->flash_id
== FLASH_AM040
)) {
175 for (i
= 0; i
< info
->sector_count
; i
++)
176 info
->start
[i
] = base
+ (i
* 0x00010000);
178 if (info
->flash_id
& FLASH_BTYPE
) {
179 /* set sector offsets for bottom boot block type */
180 info
->start
[0] = base
+ 0x00000000;
181 info
->start
[1] = base
+ 0x00004000;
182 info
->start
[2] = base
+ 0x00006000;
183 info
->start
[3] = base
+ 0x00008000;
184 for (i
= 4; i
< info
->sector_count
; i
++) {
186 base
+ (i
* 0x00010000) - 0x00030000;
189 /* set sector offsets for top boot block type */
190 i
= info
->sector_count
- 1;
191 info
->start
[i
--] = base
+ info
->size
- 0x00004000;
192 info
->start
[i
--] = base
+ info
->size
- 0x00006000;
193 info
->start
[i
--] = base
+ info
->size
- 0x00008000;
194 for (; i
>= 0; i
--) {
195 info
->start
[i
] = base
+ i
* 0x00010000;