3 * Stefan Roese, esd gmbh germany, stefan.roese@esd-electronics.com
5 * SPDX-License-Identifier: GPL-2.0+
9 #include <asm/ppc4xx.h>
10 #include <asm/processor.h>
13 * include common flash code (for esd boards)
15 #include "../common/flash.c"
17 /*-----------------------------------------------------------------------
20 static ulong
flash_get_size (vu_long
* addr
, flash_info_t
* info
);
21 static void flash_get_offsets (ulong base
, flash_info_t
* info
);
23 /*-----------------------------------------------------------------------
26 unsigned long flash_init (void)
28 unsigned long size_b0
, size_b1
;
31 unsigned long base_b0
, base_b1
;
34 /* Init: no FLASHes known */
35 for (i
= 0; i
< CONFIG_SYS_MAX_FLASH_BANKS
; ++i
) {
36 flash_info
[i
].flash_id
= FLASH_UNKNOWN
;
39 /* Static FLASH Bank configuration here - FIXME XXX */
41 base_b0
= FLASH_BASE0_PRELIM
;
42 size_b0
= flash_get_size ((vu_long
*) base_b0
, &flash_info
[0]);
44 if (flash_info
[0].flash_id
== FLASH_UNKNOWN
) {
45 printf ("## Unknown FLASH on Bank 0 - Size = 0x%08lx = %ld MB\n",
46 size_b0
, size_b0
<< 20);
49 base_b1
= FLASH_BASE1_PRELIM
;
50 size_b1
= flash_get_size ((vu_long
*) base_b1
, &flash_info
[1]);
52 /* Re-do sizing to get full correct info */
55 mtdcr (EBC0_CFGADDR
, PB0CR
);
56 pbcr
= mfdcr (EBC0_CFGDATA
);
57 mtdcr (EBC0_CFGADDR
, PB0CR
);
76 pbcr
= (pbcr
& 0x0001ffff) | base_b1
| (size_val
<< 17);
77 mtdcr (EBC0_CFGDATA
, pbcr
);
78 /* printf("PB1CR = %x\n", pbcr); */
82 mtdcr (EBC0_CFGADDR
, PB1CR
);
83 pbcr
= mfdcr (EBC0_CFGDATA
);
84 mtdcr (EBC0_CFGADDR
, PB1CR
);
85 base_b0
= base_b1
- size_b0
;
103 pbcr
= (pbcr
& 0x0001ffff) | base_b0
| (size_val
<< 17);
104 mtdcr (EBC0_CFGDATA
, pbcr
);
105 /* printf("PB0CR = %x\n", pbcr); */
108 size_b0
= flash_get_size ((vu_long
*) base_b0
, &flash_info
[0]);
110 flash_get_offsets (base_b0
, &flash_info
[0]);
112 /* monitor protection ON by default */
113 flash_protect (FLAG_PROTECT_SET
,
114 base_b0
+ size_b0
- monitor_flash_len
,
115 base_b0
+ size_b0
- 1, &flash_info
[0]);
118 /* Re-do sizing to get full correct info */
119 size_b1
= flash_get_size ((vu_long
*) base_b1
, &flash_info
[1]);
121 flash_get_offsets (base_b1
, &flash_info
[1]);
123 /* monitor protection ON by default */
124 flash_protect (FLAG_PROTECT_SET
,
125 base_b1
+ size_b1
- monitor_flash_len
,
126 base_b1
+ size_b1
- 1, &flash_info
[1]);
127 /* monitor protection OFF by default (one is enough) */
128 flash_protect (FLAG_PROTECT_CLEAR
,
129 base_b0
+ size_b0
- monitor_flash_len
,
130 base_b0
+ size_b0
- 1, &flash_info
[0]);
132 flash_info
[1].flash_id
= FLASH_UNKNOWN
;
133 flash_info
[1].sector_count
= -1;
136 flash_info
[0].size
= size_b0
;
137 flash_info
[1].size
= size_b1
;
139 return (size_b0
+ size_b1
);