Gary Jennejohn | 7968bb5 | 2007-01-24 12:16:56 +0100 | [diff] [blame] | 1 | /* |
| 2 | * (C) Copyright 2006 Embedded Artists AB <www.embeddedartists.com> |
| 3 | * |
Peter Pearse | d862a25 | 2007-05-09 11:37:56 +0100 | [diff] [blame] | 4 | * Modified to use the routines in cpu/arm720t/lpc2292/flash.c by |
| 5 | * Gary Jennejohn <garyj@denx,de> |
| 6 | * |
Gary Jennejohn | 7968bb5 | 2007-01-24 12:16:56 +0100 | [diff] [blame] | 7 | * This program is free software; you can redistribute it and/or |
| 8 | * modify it under the terms of the GNU General Public License as |
| 9 | * published by the Free Software Foundation; either version 2 of |
| 10 | * the License, or (at your option) any later version. |
| 11 | * |
| 12 | * This program is distributed in the hope that it will be useful, |
| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 15 | * GNU General Public License for more details. |
| 16 | * |
| 17 | * You should have received a copy of the GNU General Public License |
| 18 | * along with this program; if not, write to the Free Software |
| 19 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, |
| 20 | * MA 02111-1307 USA |
| 21 | */ |
| 22 | |
| 23 | #include <common.h> |
| 24 | #include <asm/arch/hardware.h> |
| 25 | |
Gary Jennejohn | 7968bb5 | 2007-01-24 12:16:56 +0100 | [diff] [blame] | 26 | #define SST_BASEADDR 0x80000000 |
| 27 | #define SST_ADDR1 ((volatile ushort*)(SST_BASEADDR + (0x5555 << 1))) |
| 28 | #define SST_ADDR2 ((volatile ushort*)(SST_BASEADDR + (0x2AAA << 1))) |
| 29 | |
Gary Jennejohn | 7968bb5 | 2007-01-24 12:16:56 +0100 | [diff] [blame] | 30 | |
| 31 | flash_info_t flash_info[CFG_MAX_FLASH_BANKS]; |
| 32 | |
Peter Pearse | d862a25 | 2007-05-09 11:37:56 +0100 | [diff] [blame] | 33 | extern int lpc2292_copy_buffer_to_flash(flash_info_t *, ulong); |
| 34 | extern int lpc2292_flash_erase(flash_info_t *, int, int); |
| 35 | extern int lpc2292_write_buff (flash_info_t *, uchar *, ulong, ulong); |
Gary Jennejohn | 7968bb5 | 2007-01-24 12:16:56 +0100 | [diff] [blame] | 36 | |
| 37 | /*----------------------------------------------------------------------- |
| 38 | * |
| 39 | */ |
| 40 | void write_word_sst(ulong addr, ushort data) |
| 41 | { |
| 42 | ushort tmp; |
| 43 | |
| 44 | *SST_ADDR1 = 0x00AA; |
| 45 | *SST_ADDR2 = 0x0055; |
| 46 | *SST_ADDR1 = 0x00A0; |
| 47 | *((volatile ushort*)addr) = data; |
| 48 | /* do data polling */ |
| 49 | do { |
| 50 | tmp = *((volatile ushort*)addr); |
| 51 | } while (tmp != data); |
| 52 | } |
| 53 | |
| 54 | /*----------------------------------------------------------------------- |
| 55 | */ |
| 56 | |
| 57 | ulong flash_init (void) |
| 58 | { |
| 59 | int j, k; |
| 60 | ulong size = 0; |
| 61 | ulong flashbase = 0; |
| 62 | |
| 63 | flash_info[0].flash_id = (PHILIPS_LPC2292 & FLASH_VENDMASK); |
| 64 | flash_info[0].size = 0x003E000; /* 256 - 8 KB */ |
| 65 | flash_info[0].sector_count = 17; |
| 66 | memset (flash_info[0].protect, 0, 17); |
| 67 | flashbase = 0x00000000; |
| 68 | for (j = 0, k = 0; j < 8; j++, k++) { |
| 69 | flash_info[0].start[k] = flashbase; |
| 70 | flashbase += 0x00002000; |
| 71 | } |
| 72 | for (j = 0; j < 2; j++, k++) { |
| 73 | flash_info[0].start[k] = flashbase; |
| 74 | flashbase += 0x00010000; |
| 75 | } |
| 76 | for (j = 0; j < 7; j++, k++) { |
| 77 | flash_info[0].start[k] = flashbase; |
| 78 | flashbase += 0x00002000; |
Wolfgang Denk | 62e8a97 | 2007-01-30 00:50:40 +0100 | [diff] [blame] | 79 | } |
Gary Jennejohn | 7968bb5 | 2007-01-24 12:16:56 +0100 | [diff] [blame] | 80 | size += flash_info[0].size; |
| 81 | |
| 82 | flash_info[1].flash_id = (SST_MANUFACT & FLASH_VENDMASK); |
| 83 | flash_info[1].size = 0x00200000; /* 2 MB */ |
| 84 | flash_info[1].sector_count = 512; |
| 85 | memset (flash_info[1].protect, 0, 512); |
| 86 | flashbase = SST_BASEADDR; |
| 87 | for (j=0; j<512; j++) { |
| 88 | flash_info[1].start[j] = flashbase; |
| 89 | flashbase += 0x1000; /* 4 KB sectors */ |
| 90 | } |
| 91 | size += flash_info[1].size; |
| 92 | |
| 93 | /* Protect monitor and environment sectors */ |
| 94 | flash_protect (FLAG_PROTECT_SET, |
| 95 | 0x0, |
| 96 | 0x0 + monitor_flash_len - 1, |
| 97 | &flash_info[0]); |
| 98 | |
| 99 | flash_protect (FLAG_PROTECT_SET, |
| 100 | CFG_ENV_ADDR, |
Wolfgang Denk | 62e8a97 | 2007-01-30 00:50:40 +0100 | [diff] [blame] | 101 | CFG_ENV_ADDR + CFG_ENV_SIZE - 1, |
Gary Jennejohn | 7968bb5 | 2007-01-24 12:16:56 +0100 | [diff] [blame] | 102 | &flash_info[0]); |
| 103 | |
| 104 | return size; |
| 105 | } |
| 106 | |
| 107 | /*----------------------------------------------------------------------- |
| 108 | */ |
| 109 | void flash_print_info (flash_info_t * info) |
| 110 | { |
| 111 | int i; |
| 112 | int erased = 0; |
| 113 | unsigned long j; |
| 114 | unsigned long count; |
| 115 | unsigned char *p; |
| 116 | |
| 117 | switch (info->flash_id & FLASH_VENDMASK) { |
| 118 | case (SST_MANUFACT & FLASH_VENDMASK): |
| 119 | printf("SST: "); |
| 120 | break; |
| 121 | case (PHILIPS_LPC2292 & FLASH_VENDMASK): |
| 122 | printf("Philips: "); |
| 123 | break; |
| 124 | default: |
| 125 | printf ("Unknown Vendor "); |
| 126 | break; |
| 127 | } |
| 128 | |
| 129 | printf (" Size: %ld KB in %d Sectors\n", |
| 130 | info->size >> 10, info->sector_count); |
| 131 | |
| 132 | printf (" Sector Start Addresses:"); |
| 133 | for (i = 0; i < info->sector_count; i++) { |
| 134 | if ((i % 5) == 0) { |
| 135 | printf ("\n "); |
| 136 | } |
| 137 | if (i < (info->sector_count - 1)) { |
| 138 | count = info->start[i+1] - info->start[i]; |
| 139 | } |
| 140 | else { |
| 141 | count = info->start[0] + info->size - info->start[i]; |
| 142 | } |
| 143 | p = (unsigned char*)(info->start[i]); |
| 144 | erased = 1; |
| 145 | for (j = 0; j < count; j++) { |
| 146 | if (*p != 0xFF) { |
| 147 | erased = 0; |
| 148 | break; |
| 149 | } |
| 150 | p++; |
| 151 | } |
| 152 | printf (" %08lX%s%s", info->start[i], info->protect[i] ? " RO" : " ", |
| 153 | erased ? " E" : " "); |
| 154 | } |
| 155 | printf ("\n"); |
| 156 | } |
| 157 | |
Gary Jennejohn | 7968bb5 | 2007-01-24 12:16:56 +0100 | [diff] [blame] | 158 | int flash_erase_sst (flash_info_t * info, int s_first, int s_last) |
| 159 | { |
| 160 | int i; |
| 161 | |
| 162 | for (i = s_first; i <= s_last; i++) { |
| 163 | *SST_ADDR1 = 0x00AA; |
| 164 | *SST_ADDR2 = 0x0055; |
| 165 | *SST_ADDR1 = 0x0080; |
| 166 | *SST_ADDR1 = 0x00AA; |
| 167 | *SST_ADDR2 = 0x0055; |
| 168 | *((volatile ushort*)(info->start[i])) = 0x0030; |
| 169 | /* wait for erase to finish */ |
| 170 | udelay(25000); |
| 171 | } |
| 172 | |
| 173 | return ERR_OK; |
| 174 | } |
| 175 | |
| 176 | int flash_erase (flash_info_t * info, int s_first, int s_last) |
| 177 | { |
| 178 | switch (info->flash_id & FLASH_VENDMASK) { |
| 179 | case (SST_MANUFACT & FLASH_VENDMASK): |
Wolfgang Denk | 62e8a97 | 2007-01-30 00:50:40 +0100 | [diff] [blame] | 180 | return flash_erase_sst(info, s_first, s_last); |
Gary Jennejohn | 7968bb5 | 2007-01-24 12:16:56 +0100 | [diff] [blame] | 181 | case (PHILIPS_LPC2292 & FLASH_VENDMASK): |
Peter Pearse | d862a25 | 2007-05-09 11:37:56 +0100 | [diff] [blame] | 182 | return lpc2292_flash_erase(info, s_first, s_last); |
Gary Jennejohn | 7968bb5 | 2007-01-24 12:16:56 +0100 | [diff] [blame] | 183 | default: |
| 184 | return ERR_PROTECTED; |
| 185 | } |
| 186 | return ERR_PROTECTED; |
| 187 | } |
| 188 | |
| 189 | /*----------------------------------------------------------------------- |
| 190 | * Copy memory to flash. |
| 191 | * |
| 192 | * cnt is in bytes |
| 193 | */ |
| 194 | |
| 195 | int write_buff_sst (flash_info_t * info, uchar * src, ulong addr, ulong cnt) |
| 196 | { |
| 197 | ushort tmp; |
| 198 | ulong i; |
| 199 | uchar* src_org; |
| 200 | uchar* dst_org; |
| 201 | ulong cnt_org = cnt; |
| 202 | int ret = ERR_OK; |
| 203 | |
| 204 | src_org = src; |
| 205 | dst_org = (uchar*)addr; |
| 206 | |
| 207 | if (addr & 1) { /* if odd address */ |
| 208 | tmp = *((uchar*)(addr - 1)); /* little endian */ |
| 209 | tmp |= (*src << 8); |
| 210 | write_word_sst(addr - 1, tmp); |
| 211 | addr += 1; |
| 212 | cnt -= 1; |
| 213 | src++; |
| 214 | } |
| 215 | while (cnt > 1) { |
| 216 | tmp = ((*(src+1)) << 8) + (*src); /* little endian */ |
| 217 | write_word_sst(addr, tmp); |
| 218 | addr += 2; |
| 219 | src += 2; |
| 220 | cnt -= 2; |
| 221 | } |
| 222 | if (cnt > 0) { |
| 223 | tmp = (*((uchar*)(addr + 1))) << 8; |
| 224 | tmp |= *src; |
| 225 | write_word_sst(addr, tmp); |
| 226 | } |
| 227 | |
| 228 | for (i = 0; i < cnt_org; i++) { |
| 229 | if (*dst_org != *src_org) { |
| 230 | printf("Write failed. Byte %lX differs\n", i); |
| 231 | ret = ERR_PROG_ERROR; |
| 232 | break; |
| 233 | } |
| 234 | dst_org++; |
| 235 | src_org++; |
| 236 | } |
| 237 | |
Gary Jennejohn | 7968bb5 | 2007-01-24 12:16:56 +0100 | [diff] [blame] | 238 | return ret; |
| 239 | } |
| 240 | |
Gary Jennejohn | 7968bb5 | 2007-01-24 12:16:56 +0100 | [diff] [blame] | 241 | int write_buff (flash_info_t * info, uchar * src, ulong addr, ulong cnt) |
| 242 | { |
| 243 | switch (info->flash_id & FLASH_VENDMASK) { |
| 244 | case (SST_MANUFACT & FLASH_VENDMASK): |
Wolfgang Denk | 62e8a97 | 2007-01-30 00:50:40 +0100 | [diff] [blame] | 245 | return write_buff_sst(info, src, addr, cnt); |
Gary Jennejohn | 7968bb5 | 2007-01-24 12:16:56 +0100 | [diff] [blame] | 246 | case (PHILIPS_LPC2292 & FLASH_VENDMASK): |
Peter Pearse | d862a25 | 2007-05-09 11:37:56 +0100 | [diff] [blame] | 247 | return lpc2292_write_buff(info, src, addr, cnt); |
Gary Jennejohn | 7968bb5 | 2007-01-24 12:16:56 +0100 | [diff] [blame] | 248 | default: |
| 249 | return ERR_PROG_ERROR; |
| 250 | } |
| 251 | return ERR_PROG_ERROR; |
| 252 | } |