wdenk | 12f3424 | 2003-09-02 22:48:03 +0000 | [diff] [blame] | 1 | /* |
| 2 | * (C) Copyright 2001 |
| 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> |
Stefan Roese | b36df56 | 2010-09-09 19:18:00 +0200 | [diff] [blame] | 25 | #include <asm/ppc4xx.h> |
wdenk | 12f3424 | 2003-09-02 22:48:03 +0000 | [diff] [blame] | 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 | |
| 42 | unsigned long flash_init (void) |
| 43 | { |
| 44 | #ifdef __DEBUG_START_FROM_SRAM__ |
Jean-Christophe PLAGNIOL-VILLARD | 6d0f6bc | 2008-10-16 15:01:15 +0200 | [diff] [blame] | 45 | return CONFIG_SYS_DUMMY_FLASH_SIZE; |
wdenk | 12f3424 | 2003-09-02 22:48:03 +0000 | [diff] [blame] | 46 | #else |
wdenk | 46a414d | 2004-06-17 18:50:45 +0000 | [diff] [blame] | 47 | unsigned long size; |
wdenk | 12f3424 | 2003-09-02 22:48:03 +0000 | [diff] [blame] | 48 | int i; |
wdenk | 42d1f03 | 2003-10-15 23:53:47 +0000 | [diff] [blame] | 49 | uint pbcr; |
wdenk | 46a414d | 2004-06-17 18:50:45 +0000 | [diff] [blame] | 50 | unsigned long base; |
wdenk | 12f3424 | 2003-09-02 22:48:03 +0000 | [diff] [blame] | 51 | int size_val = 0; |
| 52 | |
wdenk | e55ca7e | 2004-07-01 21:40:08 +0000 | [diff] [blame] | 53 | debug("[%s, %d] Entering ...\n", __FUNCTION__, __LINE__); |
| 54 | debug("[%s, %d] flash_info = 0x%08X ...\n", __FUNCTION__, __LINE__, flash_info); |
| 55 | |
wdenk | 12f3424 | 2003-09-02 22:48:03 +0000 | [diff] [blame] | 56 | /* Init: no FLASHes known */ |
Jean-Christophe PLAGNIOL-VILLARD | 6d0f6bc | 2008-10-16 15:01:15 +0200 | [diff] [blame] | 57 | for (i=0; i<CONFIG_SYS_MAX_FLASH_BANKS; ++i) { |
wdenk | 12f3424 | 2003-09-02 22:48:03 +0000 | [diff] [blame] | 58 | flash_info[i].flash_id = FLASH_UNKNOWN; |
| 59 | } |
| 60 | |
| 61 | /* Static FLASH Bank configuration here - FIXME XXX */ |
| 62 | |
wdenk | e55ca7e | 2004-07-01 21:40:08 +0000 | [diff] [blame] | 63 | debug("[%s, %d] Calling flash_get_size ...\n", __FUNCTION__, __LINE__); |
wdenk | 46a414d | 2004-06-17 18:50:45 +0000 | [diff] [blame] | 64 | size = flash_get_size((vu_long *)FLASH_BASE0_PRELIM, &flash_info[0]); |
wdenk | 12f3424 | 2003-09-02 22:48:03 +0000 | [diff] [blame] | 65 | |
| 66 | if (flash_info[0].flash_id == FLASH_UNKNOWN) { |
| 67 | printf ("## Unknown FLASH on Bank 0 - Size = 0x%08lx = %ld MB\n", |
wdenk | 46a414d | 2004-06-17 18:50:45 +0000 | [diff] [blame] | 68 | size, size<<20); |
wdenk | 12f3424 | 2003-09-02 22:48:03 +0000 | [diff] [blame] | 69 | } |
| 70 | |
wdenk | e55ca7e | 2004-07-01 21:40:08 +0000 | [diff] [blame] | 71 | debug("[%s, %d] Test point ...\n", __FUNCTION__, __LINE__); |
| 72 | |
wdenk | 42d1f03 | 2003-10-15 23:53:47 +0000 | [diff] [blame] | 73 | /* Setup offsets */ |
wdenk | 46a414d | 2004-06-17 18:50:45 +0000 | [diff] [blame] | 74 | flash_get_offsets (-size, &flash_info[0]); |
wdenk | e55ca7e | 2004-07-01 21:40:08 +0000 | [diff] [blame] | 75 | debug("[%s, %d] Test point ...\n", __FUNCTION__, __LINE__); |
wdenk | 12f3424 | 2003-09-02 22:48:03 +0000 | [diff] [blame] | 76 | |
wdenk | 42d1f03 | 2003-10-15 23:53:47 +0000 | [diff] [blame] | 77 | /* Re-do sizing to get full correct info */ |
Stefan Roese | d1c3b27 | 2009-09-09 16:25:29 +0200 | [diff] [blame] | 78 | mtdcr(EBC0_CFGADDR, PB0CR); |
| 79 | pbcr = mfdcr(EBC0_CFGDATA); |
| 80 | mtdcr(EBC0_CFGADDR, PB0CR); |
wdenk | 46a414d | 2004-06-17 18:50:45 +0000 | [diff] [blame] | 81 | base = -size; |
| 82 | switch (size) { |
wdenk | 12f3424 | 2003-09-02 22:48:03 +0000 | [diff] [blame] | 83 | case 1 << 20: |
| 84 | size_val = 0; |
| 85 | break; |
| 86 | case 2 << 20: |
| 87 | size_val = 1; |
| 88 | break; |
| 89 | case 4 << 20: |
| 90 | size_val = 2; |
| 91 | break; |
| 92 | case 8 << 20: |
| 93 | size_val = 3; |
| 94 | break; |
| 95 | case 16 << 20: |
| 96 | size_val = 4; |
| 97 | break; |
| 98 | } |
wdenk | 46a414d | 2004-06-17 18:50:45 +0000 | [diff] [blame] | 99 | pbcr = (pbcr & 0x0001ffff) | base | (size_val << 17); |
Stefan Roese | d1c3b27 | 2009-09-09 16:25:29 +0200 | [diff] [blame] | 100 | mtdcr(EBC0_CFGDATA, pbcr); |
wdenk | e55ca7e | 2004-07-01 21:40:08 +0000 | [diff] [blame] | 101 | debug("[%s, %d] Test point ...\n", __FUNCTION__, __LINE__); |
wdenk | 12f3424 | 2003-09-02 22:48:03 +0000 | [diff] [blame] | 102 | |
wdenk | 42d1f03 | 2003-10-15 23:53:47 +0000 | [diff] [blame] | 103 | /* Monitor protection ON by default */ |
| 104 | (void)flash_protect(FLAG_PROTECT_SET, |
Jean-Christophe PLAGNIOL-VILLARD | 6d0f6bc | 2008-10-16 15:01:15 +0200 | [diff] [blame] | 105 | -CONFIG_SYS_MONITOR_LEN, |
wdenk | 42d1f03 | 2003-10-15 23:53:47 +0000 | [diff] [blame] | 106 | 0xffffffff, |
| 107 | &flash_info[0]); |
wdenk | 12f3424 | 2003-09-02 22:48:03 +0000 | [diff] [blame] | 108 | |
wdenk | e55ca7e | 2004-07-01 21:40:08 +0000 | [diff] [blame] | 109 | debug("[%s, %d] Test point ...\n", __FUNCTION__, __LINE__); |
wdenk | 46a414d | 2004-06-17 18:50:45 +0000 | [diff] [blame] | 110 | flash_info[0].size = size; |
wdenk | 12f3424 | 2003-09-02 22:48:03 +0000 | [diff] [blame] | 111 | |
wdenk | 46a414d | 2004-06-17 18:50:45 +0000 | [diff] [blame] | 112 | return (size); |
wdenk | 12f3424 | 2003-09-02 22:48:03 +0000 | [diff] [blame] | 113 | #endif |
| 114 | } |