wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 1 | /* |
stroese | 768eb2d | 2003-03-20 15:31:19 +0000 | [diff] [blame] | 2 | * (C) Copyright 2001-2003 |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 3 | * Stefan Roese, esd gmbh germany, stefan.roese@esd-electronics.com |
| 4 | * |
| 5 | * See file CREDITS for list of people who contributed to this |
| 6 | * project. |
| 7 | * |
| 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. |
| 12 | * |
| 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. |
| 17 | * |
| 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, |
| 21 | * MA 02111-1307 USA |
| 22 | */ |
| 23 | |
| 24 | #include <common.h> |
| 25 | #include <ppc4xx.h> |
| 26 | #include <asm/processor.h> |
| 27 | |
| 28 | /* |
| 29 | * include common flash code (for esd boards) |
| 30 | */ |
| 31 | #include "../common/flash.c" |
| 32 | |
| 33 | /*----------------------------------------------------------------------- |
| 34 | * Functions |
| 35 | */ |
| 36 | static ulong flash_get_size (vu_long * addr, flash_info_t * info); |
| 37 | static void flash_get_offsets (ulong base, flash_info_t * info); |
| 38 | |
| 39 | /*----------------------------------------------------------------------- |
| 40 | */ |
| 41 | |
stroese | 768eb2d | 2003-03-20 15:31:19 +0000 | [diff] [blame] | 42 | unsigned long calc_size(unsigned long size) |
| 43 | { |
| 44 | switch (size) { |
| 45 | case 1 << 20: |
| 46 | return 0; |
| 47 | case 2 << 20: |
| 48 | return 1; |
| 49 | case 4 << 20: |
| 50 | return 2; |
| 51 | case 8 << 20: |
| 52 | return 3; |
| 53 | case 16 << 20: |
| 54 | return 4; |
| 55 | default: |
| 56 | return 0; |
| 57 | } |
| 58 | } |
| 59 | |
| 60 | |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 61 | unsigned long flash_init (void) |
| 62 | { |
| 63 | unsigned long size_b0, size_b1; |
| 64 | int i; |
| 65 | uint pbcr; |
| 66 | unsigned long base_b0, base_b1; |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 67 | |
| 68 | /* Init: no FLASHes known */ |
Jean-Christophe PLAGNIOL-VILLARD | 0383694 | 2008-10-16 15:01:15 +0200 | [diff] [blame] | 69 | for (i = 0; i < CONFIG_SYS_MAX_FLASH_BANKS; ++i) { |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 70 | flash_info[i].flash_id = FLASH_UNKNOWN; |
| 71 | } |
| 72 | |
| 73 | /* Static FLASH Bank configuration here - FIXME XXX */ |
| 74 | |
| 75 | base_b0 = FLASH_BASE0_PRELIM; |
| 76 | size_b0 = flash_get_size ((vu_long *) base_b0, &flash_info[0]); |
| 77 | |
| 78 | if (flash_info[0].flash_id == FLASH_UNKNOWN) { |
| 79 | printf ("## Unknown FLASH on Bank 0 - Size = 0x%08lx = %ld MB\n", |
| 80 | size_b0, size_b0 << 20); |
| 81 | } |
| 82 | |
| 83 | base_b1 = FLASH_BASE1_PRELIM; |
| 84 | size_b1 = flash_get_size ((vu_long *) base_b1, &flash_info[1]); |
| 85 | |
| 86 | /* Re-do sizing to get full correct info */ |
| 87 | |
| 88 | if (size_b1) { |
stroese | 768eb2d | 2003-03-20 15:31:19 +0000 | [diff] [blame] | 89 | if (size_b1 < (1 << 20)) { |
| 90 | /* minimum CS size on PPC405GP is 1MB !!! */ |
| 91 | size_b1 = 1 << 20; |
| 92 | } |
stroese | d253d4b | 2003-05-23 11:30:39 +0000 | [diff] [blame] | 93 | base_b1 = -size_b1; |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 94 | mtdcr (ebccfga, pb0cr); |
| 95 | pbcr = mfdcr (ebccfgd); |
| 96 | mtdcr (ebccfga, pb0cr); |
stroese | 768eb2d | 2003-03-20 15:31:19 +0000 | [diff] [blame] | 97 | pbcr = (pbcr & 0x0001ffff) | base_b1 | (calc_size(size_b1) << 17); |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 98 | mtdcr (ebccfgd, pbcr); |
stroese | 768eb2d | 2003-03-20 15:31:19 +0000 | [diff] [blame] | 99 | #if 0 /* test-only */ |
| 100 | printf("size_b1=%x base_b1=%x pb1cr = %x\n", |
| 101 | size_b1, base_b1, pbcr); /* test-only */ |
| 102 | #endif |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 103 | } |
| 104 | |
| 105 | if (size_b0) { |
stroese | 768eb2d | 2003-03-20 15:31:19 +0000 | [diff] [blame] | 106 | if (size_b0 < (1 << 20)) { |
| 107 | /* minimum CS size on PPC405GP is 1MB !!! */ |
| 108 | size_b0 = 1 << 20; |
| 109 | } |
stroese | d253d4b | 2003-05-23 11:30:39 +0000 | [diff] [blame] | 110 | base_b0 = base_b1 - size_b0; |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 111 | mtdcr (ebccfga, pb1cr); |
| 112 | pbcr = mfdcr (ebccfgd); |
| 113 | mtdcr (ebccfga, pb1cr); |
stroese | 768eb2d | 2003-03-20 15:31:19 +0000 | [diff] [blame] | 114 | pbcr = (pbcr & 0x0001ffff) | base_b0 | (calc_size(size_b0) << 17); |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 115 | mtdcr (ebccfgd, pbcr); |
stroese | 768eb2d | 2003-03-20 15:31:19 +0000 | [diff] [blame] | 116 | #if 0 /* test-only */ |
| 117 | printf("size_b0=%x base_b0=%x pb0cr = %x\n", |
| 118 | size_b0, base_b0, pbcr); /* test-only */ |
| 119 | #endif |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 120 | } |
| 121 | |
| 122 | size_b0 = flash_get_size ((vu_long *) base_b0, &flash_info[0]); |
| 123 | |
| 124 | flash_get_offsets (base_b0, &flash_info[0]); |
| 125 | |
| 126 | /* monitor protection ON by default */ |
| 127 | flash_protect (FLAG_PROTECT_SET, |
wdenk | b9a83a9 | 2003-05-30 12:48:29 +0000 | [diff] [blame] | 128 | base_b0 + size_b0 - monitor_flash_len, |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 129 | base_b0 + size_b0 - 1, &flash_info[0]); |
| 130 | |
| 131 | if (size_b1) { |
| 132 | /* Re-do sizing to get full correct info */ |
| 133 | size_b1 = flash_get_size ((vu_long *) base_b1, &flash_info[1]); |
| 134 | |
| 135 | flash_get_offsets (base_b1, &flash_info[1]); |
| 136 | |
| 137 | /* monitor protection ON by default */ |
| 138 | flash_protect (FLAG_PROTECT_SET, |
wdenk | b9a83a9 | 2003-05-30 12:48:29 +0000 | [diff] [blame] | 139 | base_b1 + size_b1 - monitor_flash_len, |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 140 | base_b1 + size_b1 - 1, &flash_info[1]); |
| 141 | /* monitor protection OFF by default (one is enough) */ |
| 142 | flash_protect (FLAG_PROTECT_CLEAR, |
wdenk | b9a83a9 | 2003-05-30 12:48:29 +0000 | [diff] [blame] | 143 | base_b0 + size_b0 - monitor_flash_len, |
wdenk | affae2b | 2002-08-17 09:36:01 +0000 | [diff] [blame] | 144 | base_b0 + size_b0 - 1, &flash_info[0]); |
| 145 | } else { |
| 146 | flash_info[1].flash_id = FLASH_UNKNOWN; |
| 147 | flash_info[1].sector_count = -1; |
| 148 | } |
| 149 | |
| 150 | flash_info[0].size = size_b0; |
| 151 | flash_info[1].size = size_b1; |
| 152 | |
| 153 | return (size_b0 + size_b1); |
| 154 | } |