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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 | /* * (C) Copyright 2001 * Stefan Roese, esd gmbh germany, stefan.roese@esd-electronics.com * * See file CREDITS for list of people who contributed to this * project. * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License as * published by the Free Software Foundation; either version 2 of * the License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, * MA 02111-1307 USA */ #include <common.h> #include <ppc4xx.h> #include <asm/processor.h> /* * include common flash code (for esd boards) */ #include "../common/flash.c" /*----------------------------------------------------------------------- * Functions */ static ulong flash_get_size (vu_long * addr, flash_info_t * info); static void flash_get_offsets (ulong base, flash_info_t * info); /*----------------------------------------------------------------------- */ unsigned long flash_init (void) { unsigned long size_b0, size_b1; int i; uint pbcr; unsigned long base_b0, base_b1; /* Init: no FLASHes known */ for (i = 0; i < CFG_MAX_FLASH_BANKS; ++i) { flash_info[i].flash_id = FLASH_UNKNOWN; } /* Static FLASH Bank configuration here - FIXME XXX */ base_b0 = FLASH_BASE0_PRELIM; size_b0 = flash_get_size ((vu_long *) base_b0, &flash_info[0]); if (flash_info[0].flash_id == FLASH_UNKNOWN) { printf ("## Unknown FLASH on Bank 0 - Size = 0x%08lx = %ld MB\n", size_b0, size_b0 << 20); } base_b1 = FLASH_BASE1_PRELIM; size_b1 = flash_get_size ((vu_long *) base_b1, &flash_info[1]); /* Re-do sizing to get full correct info */ if (size_b1) { mtdcr (ebccfga, pb0cr); pbcr = mfdcr (ebccfgd); mtdcr (ebccfga, pb0cr); base_b1 = -size_b1; pbcr = (pbcr & 0x0001ffff) | base_b1 | (((size_b1 / 1024 / 1024) - 1) << 17); mtdcr (ebccfgd, pbcr); /* printf("pb1cr = %x\n", pbcr); */ } if (size_b0) { mtdcr (ebccfga, pb1cr); pbcr = mfdcr (ebccfgd); mtdcr (ebccfga, pb1cr); base_b0 = base_b1 - size_b0; pbcr = (pbcr & 0x0001ffff) | base_b0 | (((size_b0 / 1024 / 1024) - 1) << 17); mtdcr (ebccfgd, pbcr); /* printf("pb0cr = %x\n", pbcr); */ } size_b0 = flash_get_size ((vu_long *) base_b0, &flash_info[0]); flash_get_offsets (base_b0, &flash_info[0]); /* monitor protection ON by default */ flash_protect (FLAG_PROTECT_SET, base_b0 + size_b0 - monitor_flash_len, base_b0 + size_b0 - 1, &flash_info[0]); if (size_b1) { /* Re-do sizing to get full correct info */ size_b1 = flash_get_size ((vu_long *) base_b1, &flash_info[1]); flash_get_offsets (base_b1, &flash_info[1]); /* monitor protection ON by default */ flash_protect (FLAG_PROTECT_SET, base_b1 + size_b1 - monitor_flash_len, base_b1 + size_b1 - 1, &flash_info[1]); /* monitor protection OFF by default (one is enough) */ flash_protect (FLAG_PROTECT_CLEAR, base_b0 + size_b0 - monitor_flash_len, base_b0 + size_b0 - 1, &flash_info[0]); } else { flash_info[1].flash_id = FLASH_UNKNOWN; flash_info[1].sector_count = -1; } flash_info[0].size = size_b0; flash_info[1].size = size_b1; return (size_b0 + size_b1); } |