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8a316c9b SR |
1 | /* |
2 | * (C) Copyright 2000-2005 | |
3 | * Wolfgang Denk, DENX Software Engineering, wd@denx.de. | |
4 | * | |
1a459660 | 5 | * SPDX-License-Identifier: GPL-2.0+ |
8a316c9b SR |
6 | */ |
7 | ||
8 | /* | |
9 | * Modified 4/5/2001 | |
10 | * Wait for completion of each sector erase command issued | |
11 | * 4/5/2001 | |
12 | * Chris Hallinan - DS4.COM, Inc. - clh@net1plus.com | |
13 | */ | |
14 | ||
15 | #include <common.h> | |
b36df561 | 16 | #include <asm/ppc4xx.h> |
8a316c9b SR |
17 | #include <asm/processor.h> |
18 | ||
19 | #undef DEBUG | |
20 | #ifdef DEBUG | |
21 | #define DEBUGF(x...) printf(x) | |
22 | #else | |
23 | #define DEBUGF(x...) | |
24 | #endif /* DEBUG */ | |
25 | ||
26 | /* | |
27 | * include common flash code (for amcc boards) | |
28 | */ | |
29 | #include "../common/flash.c" | |
30 | ||
31 | /*----------------------------------------------------------------------- | |
32 | * Functions | |
33 | */ | |
34 | static ulong flash_get_size(vu_long * addr, flash_info_t * info); | |
35 | static void flash_get_offsets(ulong base, flash_info_t * info); | |
36 | ||
37 | unsigned long flash_init(void) | |
38 | { | |
39 | unsigned long size_b0, size_b1; | |
40 | int i; | |
41 | uint pbcr; | |
42 | unsigned long base_b0, base_b1; | |
43 | ||
44 | /* Init: no FLASHes known */ | |
6d0f6bcf | 45 | for (i = 0; i < CONFIG_SYS_MAX_FLASH_BANKS; ++i) { |
8a316c9b SR |
46 | flash_info[i].flash_id = FLASH_UNKNOWN; |
47 | } | |
48 | ||
49 | /* Static FLASH Bank configuration here - FIXME XXX */ | |
50 | ||
51 | size_b0 = | |
52 | flash_get_size((vu_long *) FLASH_BASE0_PRELIM, &flash_info[0]); | |
53 | ||
54 | if (flash_info[0].flash_id == FLASH_UNKNOWN) { | |
55 | printf("## Unknown FLASH on Bank 0 - Size = 0x%08lx = %ld MB\n", | |
56 | size_b0, size_b0 << 20); | |
57 | } | |
58 | ||
59 | /* Only one bank */ | |
6d0f6bcf | 60 | if (CONFIG_SYS_MAX_FLASH_BANKS == 1) { |
8a316c9b SR |
61 | /* Setup offsets */ |
62 | flash_get_offsets(FLASH_BASE0_PRELIM, &flash_info[0]); | |
63 | ||
64 | /* Monitor protection ON by default */ | |
65 | (void)flash_protect(FLAG_PROTECT_SET, | |
6d0f6bcf JCPV |
66 | CONFIG_SYS_MONITOR_BASE, |
67 | CONFIG_SYS_MONITOR_BASE + CONFIG_SYS_MONITOR_LEN - 1, | |
8a316c9b | 68 | &flash_info[0]); |
5a1aceb0 | 69 | #ifdef CONFIG_ENV_IS_IN_FLASH |
0e8d1586 JCPV |
70 | (void)flash_protect(FLAG_PROTECT_SET, CONFIG_ENV_ADDR, |
71 | CONFIG_ENV_ADDR + CONFIG_ENV_SECT_SIZE - 1, | |
8a316c9b | 72 | &flash_info[0]); |
0e8d1586 JCPV |
73 | (void)flash_protect(FLAG_PROTECT_SET, CONFIG_ENV_ADDR_REDUND, |
74 | CONFIG_ENV_ADDR_REDUND + CONFIG_ENV_SECT_SIZE - 1, | |
8a316c9b SR |
75 | &flash_info[0]); |
76 | #endif | |
77 | ||
78 | size_b1 = 0; | |
79 | flash_info[0].size = size_b0; | |
80 | } else { | |
81 | /* 2 banks */ | |
82 | size_b1 = | |
83 | flash_get_size((vu_long *) FLASH_BASE1_PRELIM, | |
84 | &flash_info[1]); | |
85 | ||
86 | /* Re-do sizing to get full correct info */ | |
87 | ||
88 | if (size_b1) { | |
d1c3b275 SR |
89 | mtdcr(EBC0_CFGADDR, PB0CR); |
90 | pbcr = mfdcr(EBC0_CFGDATA); | |
91 | mtdcr(EBC0_CFGADDR, PB0CR); | |
8a316c9b SR |
92 | base_b1 = -size_b1; |
93 | pbcr = | |
94 | (pbcr & 0x0001ffff) | base_b1 | | |
95 | (((size_b1 / 1024 / 1024) - 1) << 17); | |
d1c3b275 SR |
96 | mtdcr(EBC0_CFGDATA, pbcr); |
97 | /* printf("PB1CR = %x\n", pbcr); */ | |
8a316c9b SR |
98 | } |
99 | ||
100 | if (size_b0) { | |
d1c3b275 SR |
101 | mtdcr(EBC0_CFGADDR, PB1CR); |
102 | pbcr = mfdcr(EBC0_CFGDATA); | |
103 | mtdcr(EBC0_CFGADDR, PB1CR); | |
8a316c9b SR |
104 | base_b0 = base_b1 - size_b0; |
105 | pbcr = | |
106 | (pbcr & 0x0001ffff) | base_b0 | | |
107 | (((size_b0 / 1024 / 1024) - 1) << 17); | |
d1c3b275 SR |
108 | mtdcr(EBC0_CFGDATA, pbcr); |
109 | /* printf("PB0CR = %x\n", pbcr); */ | |
8a316c9b SR |
110 | } |
111 | ||
112 | size_b0 = flash_get_size((vu_long *) base_b0, &flash_info[0]); | |
113 | ||
114 | flash_get_offsets(base_b0, &flash_info[0]); | |
115 | ||
116 | /* monitor protection ON by default */ | |
117 | (void)flash_protect(FLAG_PROTECT_SET, | |
118 | base_b0 + size_b0 - monitor_flash_len, | |
119 | base_b0 + size_b0 - 1, &flash_info[0]); | |
120 | ||
121 | if (size_b1) { | |
122 | /* Re-do sizing to get full correct info */ | |
123 | size_b1 = | |
124 | flash_get_size((vu_long *) base_b1, &flash_info[1]); | |
125 | ||
126 | flash_get_offsets(base_b1, &flash_info[1]); | |
127 | ||
128 | /* monitor protection ON by default */ | |
129 | (void)flash_protect(FLAG_PROTECT_SET, | |
130 | base_b1 + size_b1 - | |
131 | monitor_flash_len, | |
132 | base_b1 + size_b1 - 1, | |
133 | &flash_info[1]); | |
134 | /* monitor protection OFF by default (one is enough) */ | |
135 | (void)flash_protect(FLAG_PROTECT_CLEAR, | |
136 | base_b0 + size_b0 - | |
137 | monitor_flash_len, | |
138 | base_b0 + size_b0 - 1, | |
139 | &flash_info[0]); | |
140 | } else { | |
141 | flash_info[1].flash_id = FLASH_UNKNOWN; | |
142 | flash_info[1].sector_count = -1; | |
143 | } | |
144 | ||
145 | flash_info[0].size = size_b0; | |
146 | flash_info[1].size = size_b1; | |
147 | } /* else 2 banks */ | |
148 | return (size_b0 + size_b1); | |
149 | } | |
150 | ||
151 | ||
152 | static void flash_get_offsets(ulong base, flash_info_t * info) | |
153 | { | |
154 | int i; | |
155 | ||
156 | /* set up sector start address table */ | |
157 | if (((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_SST) || | |
158 | (info->flash_id == FLASH_AM040)) { | |
159 | for (i = 0; i < info->sector_count; i++) | |
160 | info->start[i] = base + (i * 0x00010000); | |
161 | } else { | |
162 | if (info->flash_id & FLASH_BTYPE) { | |
163 | /* set sector offsets for bottom boot block type */ | |
164 | info->start[0] = base + 0x00000000; | |
165 | info->start[1] = base + 0x00004000; | |
166 | info->start[2] = base + 0x00006000; | |
167 | info->start[3] = base + 0x00008000; | |
168 | for (i = 4; i < info->sector_count; i++) { | |
169 | info->start[i] = | |
170 | base + (i * 0x00010000) - 0x00030000; | |
171 | } | |
172 | } else { | |
173 | /* set sector offsets for top boot block type */ | |
174 | i = info->sector_count - 1; | |
175 | info->start[i--] = base + info->size - 0x00004000; | |
176 | info->start[i--] = base + info->size - 0x00006000; | |
177 | info->start[i--] = base + info->size - 0x00008000; | |
178 | for (; i >= 0; i--) { | |
179 | info->start[i] = base + i * 0x00010000; | |
180 | } | |
181 | } | |
182 | } | |
183 | } |