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affae2bf WD |
1 | /* |
2 | * (C) Copyright 2001 | |
3 | * Stefan Roese, esd gmbh germany, stefan.roese@esd-electronics.com | |
4 | * | |
1a459660 | 5 | * SPDX-License-Identifier: GPL-2.0+ |
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6 | */ |
7 | ||
8 | #include <common.h> | |
b36df561 | 9 | #include <asm/ppc4xx.h> |
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10 | #include <asm/processor.h> |
11 | ||
12 | /* | |
13 | * include common flash code (for esd boards) | |
14 | */ | |
15 | #include "../common/flash.c" | |
16 | ||
17 | /*----------------------------------------------------------------------- | |
18 | * Functions | |
19 | */ | |
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); | |
22 | ||
23 | /*----------------------------------------------------------------------- | |
24 | */ | |
25 | ||
26 | unsigned long flash_init (void) | |
27 | { | |
28 | unsigned long size_b0, size_b1; | |
29 | int i; | |
30 | uint pbcr; | |
31 | unsigned long base_b0, base_b1; | |
32 | ||
33 | /* Init: no FLASHes known */ | |
6d0f6bcf | 34 | for (i = 0; i < CONFIG_SYS_MAX_FLASH_BANKS; ++i) { |
affae2bf WD |
35 | flash_info[i].flash_id = FLASH_UNKNOWN; |
36 | } | |
37 | ||
38 | /* Static FLASH Bank configuration here - FIXME XXX */ | |
39 | ||
40 | base_b0 = FLASH_BASE0_PRELIM; | |
41 | size_b0 = flash_get_size ((vu_long *) base_b0, &flash_info[0]); | |
42 | ||
43 | if (flash_info[0].flash_id == FLASH_UNKNOWN) { | |
44 | printf ("## Unknown FLASH on Bank 0 - Size = 0x%08lx = %ld MB\n", | |
45 | size_b0, size_b0 << 20); | |
46 | } | |
47 | ||
48 | base_b1 = FLASH_BASE1_PRELIM; | |
49 | size_b1 = flash_get_size ((vu_long *) base_b1, &flash_info[1]); | |
50 | ||
51 | /* Re-do sizing to get full correct info */ | |
52 | ||
53 | if (size_b1) { | |
d1c3b275 SR |
54 | mtdcr (EBC0_CFGADDR, PB0CR); |
55 | pbcr = mfdcr (EBC0_CFGDATA); | |
56 | mtdcr (EBC0_CFGADDR, PB0CR); | |
affae2bf WD |
57 | base_b1 = -size_b1; |
58 | pbcr = (pbcr & 0x0001ffff) | base_b1 | | |
59 | (((size_b1 / 1024 / 1024) - 1) << 17); | |
d1c3b275 SR |
60 | mtdcr (EBC0_CFGDATA, pbcr); |
61 | /* printf("PB1CR = %x\n", pbcr); */ | |
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62 | } |
63 | ||
64 | if (size_b0) { | |
d1c3b275 SR |
65 | mtdcr (EBC0_CFGADDR, PB1CR); |
66 | pbcr = mfdcr (EBC0_CFGDATA); | |
67 | mtdcr (EBC0_CFGADDR, PB1CR); | |
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68 | base_b0 = base_b1 - size_b0; |
69 | pbcr = (pbcr & 0x0001ffff) | base_b0 | | |
70 | (((size_b0 / 1024 / 1024) - 1) << 17); | |
d1c3b275 SR |
71 | mtdcr (EBC0_CFGDATA, pbcr); |
72 | /* printf("PB0CR = %x\n", pbcr); */ | |
affae2bf WD |
73 | } |
74 | ||
75 | size_b0 = flash_get_size ((vu_long *) base_b0, &flash_info[0]); | |
76 | ||
77 | flash_get_offsets (base_b0, &flash_info[0]); | |
78 | ||
79 | /* monitor protection ON by default */ | |
80 | flash_protect (FLAG_PROTECT_SET, | |
3b57fe0a | 81 | base_b0 + size_b0 - monitor_flash_len, |
affae2bf WD |
82 | base_b0 + size_b0 - 1, &flash_info[0]); |
83 | ||
84 | if (size_b1) { | |
85 | /* Re-do sizing to get full correct info */ | |
86 | size_b1 = flash_get_size ((vu_long *) base_b1, &flash_info[1]); | |
87 | ||
88 | flash_get_offsets (base_b1, &flash_info[1]); | |
89 | ||
90 | /* monitor protection ON by default */ | |
91 | flash_protect (FLAG_PROTECT_SET, | |
3b57fe0a | 92 | base_b1 + size_b1 - monitor_flash_len, |
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93 | base_b1 + size_b1 - 1, &flash_info[1]); |
94 | /* monitor protection OFF by default (one is enough) */ | |
95 | flash_protect (FLAG_PROTECT_CLEAR, | |
3b57fe0a | 96 | base_b0 + size_b0 - monitor_flash_len, |
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97 | base_b0 + size_b0 - 1, &flash_info[0]); |
98 | } else { | |
99 | flash_info[1].flash_id = FLASH_UNKNOWN; | |
100 | flash_info[1].sector_count = -1; | |
101 | } | |
102 | ||
103 | flash_info[0].size = size_b0; | |
104 | flash_info[1].size = size_b1; | |
105 | ||
106 | return (size_b0 + size_b1); | |
107 | } |