/* * (C) Copyright 2001 * Wolfgang Denk, DENX Software Engineering, wd@denx.de. * * 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> flash_info_t flash_info[CONFIG_SYS_MAX_FLASH_BANKS]; /* info for FLASH chips */ #ifdef CONFIG_SYS_FLASH_16BIT #define FLASH_WORD_SIZE unsigned short #define FLASH_ID_MASK 0xFFFF #else #define FLASH_WORD_SIZE unsigned long #define FLASH_ID_MASK 0xFFFFFFFF #endif /*----------------------------------------------------------------------- * Functions */ /* stolen from esteem192e/flash.c */ ulong flash_get_size (volatile FLASH_WORD_SIZE *addr, flash_info_t *info); #ifndef CONFIG_SYS_FLASH_16BIT static int write_word (flash_info_t *info, ulong dest, ulong data); #else static int write_short (flash_info_t *info, ulong dest, ushort data); #endif 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<CONFIG_SYS_MAX_FLASH_BANKS; ++i) { flash_info[i].flash_id = FLASH_UNKNOWN; } /* Static FLASH Bank configuration here - FIXME XXX */ size_b0 = flash_get_size((volatile FLASH_WORD_SIZE *)FLASH_BASE0_PRELIM, &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); } /* Only one bank */ if (CONFIG_SYS_MAX_FLASH_BANKS == 1) { /* Setup offsets */ flash_get_offsets (FLASH_BASE0_PRELIM, &flash_info[0]); /* Monitor protection ON by default */ #if 0 /* sand: */ (void)flash_protect(FLAG_PROTECT_SET, FLASH_BASE0_PRELIM-monitor_flash_len+size_b0, FLASH_BASE0_PRELIM-1+size_b0, &flash_info[0]); #else (void)flash_protect(FLAG_PROTECT_SET, CONFIG_SYS_MONITOR_BASE, CONFIG_SYS_MONITOR_BASE+monitor_flash_len-1, &flash_info[0]); #endif size_b1 = 0 ; flash_info[0].size = size_b0; } /* 2 banks */ else { size_b1 = flash_get_size((volatile FLASH_WORD_SIZE *)FLASH_BASE1_PRELIM, &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((volatile FLASH_WORD_SIZE *)base_b0, &flash_info[0]); flash_get_offsets (base_b0, &flash_info[0]); /* monitor protection ON by default */ #if 0 /* sand: */ (void)flash_protect(FLAG_PROTECT_SET, FLASH_BASE0_PRELIM-monitor_flash_len+size_b0, FLASH_BASE0_PRELIM-1+size_b0, &flash_info[0]); #else (void)flash_protect(FLAG_PROTECT_SET, CONFIG_SYS_MONITOR_BASE, CONFIG_SYS_MONITOR_BASE+monitor_flash_len-1, &flash_info[0]); #endif if (size_b1) { /* Re-do sizing to get full correct info */ size_b1 = flash_get_size((volatile FLASH_WORD_SIZE *)base_b1, &flash_info[1]); flash_get_offsets (base_b1, &flash_info[1]); /* monitor protection ON by default */ (void)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) */ (void)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; }/* else 2 banks */ return (size_b0 + size_b1); } /*----------------------------------------------------------------------- */ static void flash_get_offsets (ulong base, flash_info_t *info) { int i; /* set up sector start adress table */ if ((info->flash_id & FLASH_TYPEMASK) == FLASH_28F320J3A || (info->flash_id & FLASH_TYPEMASK) == FLASH_28F640J3A || (info->flash_id & FLASH_TYPEMASK) == FLASH_28F128J3A) { for (i = 0; i < info->sector_count; i++) { info->start[i] = base + (i * info->size/info->sector_count); } } else if (info->flash_id & FLASH_BTYPE) { if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_INTEL) { #ifndef CONFIG_SYS_FLASH_16BIT /* set sector offsets for bottom boot block type */ info->start[0] = base + 0x00000000; info->start[1] = base + 0x00004000; info->start[2] = base + 0x00008000; info->start[3] = base + 0x0000C000; info->start[4] = base + 0x00010000; info->start[5] = base + 0x00014000; info->start[6] = base + 0x00018000; info->start[7] = base + 0x0001C000; for (i = 8; i < info->sector_count; i++) { info->start[i] = base + (i * 0x00020000) - 0x000E0000; } } else { /* set sector offsets for bottom boot block type */ info->start[0] = base + 0x00000000; info->start[1] = base + 0x00008000; info->start[2] = base + 0x0000C000; info->start[3] = base + 0x00010000; for (i = 4; i < info->sector_count; i++) { info->start[i] = base + (i * 0x00020000) - 0x00060000; } } #else /* set sector offsets for bottom boot block type */ info->start[0] = base + 0x00000000; info->start[1] = base + 0x00002000; info->start[2] = base + 0x00004000; info->start[3] = base + 0x00006000; info->start[4] = base + 0x00008000; info->start[5] = base + 0x0000A000; info->start[6] = base + 0x0000C000; info->start[7] = base + 0x0000E000; for (i = 8; i < info->sector_count; i++) { info->start[i] = base + (i * 0x00010000) - 0x00070000; } } else { /* set sector offsets for bottom boot block type */ info->start[0] = base + 0x00000000; info->start[1] = base + 0x00004000; info->start[2] = base + 0x00006000; info->start[3] = base + 0x00008000; for (i = 4; i < info->sector_count; i++) { info->start[i] = base + (i * 0x00010000) - 0x00030000; } } #endif } else { /* set sector offsets for top boot block type */ i = info->sector_count - 1; if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_INTEL) { #ifndef CONFIG_SYS_FLASH_16BIT info->start[i--] = base + info->size - 0x00004000; info->start[i--] = base + info->size - 0x00008000; info->start[i--] = base + info->size - 0x0000C000; info->start[i--] = base + info->size - 0x00010000; info->start[i--] = base + info->size - 0x00014000; info->start[i--] = base + info->size - 0x00018000; info->start[i--] = base + info->size - 0x0001C000; for (; i >= 0; i--) { info->start[i] = base + i * 0x00020000; } } else { info->start[i--] = base + info->size - 0x00008000; info->start[i--] = base + info->size - 0x0000C000; info->start[i--] = base + info->size - 0x00010000; for (; i >= 0; i--) { info->start[i] = base + i * 0x00020000; } } #else info->start[i--] = base + info->size - 0x00002000; info->start[i--] = base + info->size - 0x00004000; info->start[i--] = base + info->size - 0x00006000; info->start[i--] = base + info->size - 0x00008000; info->start[i--] = base + info->size - 0x0000A000; info->start[i--] = base + info->size - 0x0000C000; info->start[i--] = base + info->size - 0x0000E000; for (; i >= 0; i--) { info->start[i] = base + i * 0x00010000; } } else { info->start[i--] = base + info->size - 0x00004000; info->start[i--] = base + info->size - 0x00006000; info->start[i--] = base + info->size - 0x00008000; for (; i >= 0; i--) { info->start[i] = base + i * 0x00010000; } } #endif } } /*----------------------------------------------------------------------- */ void flash_print_info (flash_info_t *info) { int i; uchar *boottype; uchar botboot[]=", bottom boot sect)\n"; uchar topboot[]=", top boot sector)\n"; if (info->flash_id == FLASH_UNKNOWN) { printf ("missing or unknown FLASH type\n"); return; } switch (info->flash_id & FLASH_VENDMASK) { case FLASH_MAN_AMD: printf ("AMD "); break; case FLASH_MAN_FUJ: printf ("FUJITSU "); break; case FLASH_MAN_SST: printf ("SST "); break; case FLASH_MAN_STM: printf ("STM "); break; case FLASH_MAN_INTEL: printf ("INTEL "); break; default: printf ("Unknown Vendor "); break; } if (info->flash_id & 0x0001 ) { boottype = botboot; } else { boottype = topboot; } switch (info->flash_id & FLASH_TYPEMASK) { case FLASH_AM400B: printf ("AM29LV400B (4 Mbit%s",boottype); break; case FLASH_AM400T: printf ("AM29LV400T (4 Mbit%s",boottype); break; case FLASH_AM800B: printf ("AM29LV800B (8 Mbit%s",boottype); break; case FLASH_AM800T: printf ("AM29LV800T (8 Mbit%s",boottype); break; case FLASH_AM160B: printf ("AM29LV160B (16 Mbit%s",boottype); break; case FLASH_AM160T: printf ("AM29LV160T (16 Mbit%s",boottype); break; case FLASH_AM320B: printf ("AM29LV320B (32 Mbit%s",boottype); break; case FLASH_AM320T: printf ("AM29LV320T (32 Mbit%s",boottype); break; case FLASH_INTEL800B: printf ("INTEL28F800B (8 Mbit%s",boottype); break; case FLASH_INTEL800T: printf ("INTEL28F800T (8 Mbit%s",boottype); break; case FLASH_INTEL160B: printf ("INTEL28F160B (16 Mbit%s",boottype); break; case FLASH_INTEL160T: printf ("INTEL28F160T (16 Mbit%s",boottype); break; case FLASH_INTEL320B: printf ("INTEL28F320B (32 Mbit%s",boottype); break; case FLASH_INTEL320T: printf ("INTEL28F320T (32 Mbit%s",boottype); break; #if 0 /* enable when devices are available */ case FLASH_INTEL640B: printf ("INTEL28F640B (64 Mbit%s",boottype); break; case FLASH_INTEL640T: printf ("INTEL28F640T (64 Mbit%s",boottype); break; #endif case FLASH_28F320J3A: printf ("INTEL28F320J3A (32 Mbit%s",boottype); break; case FLASH_28F640J3A: printf ("INTEL28F640J3A (64 Mbit%s",boottype); break; case FLASH_28F128J3A: printf ("INTEL28F128J3A (128 Mbit%s",boottype); break; default: printf ("Unknown Chip Type\n"); break; } printf (" Size: %ld MB in %d Sectors\n", info->size >> 20, info->sector_count); printf (" Sector Start Addresses:"); for (i=0; i<info->sector_count; ++i) { if ((i % 5) == 0) printf ("\n "); printf (" %08lX%s", info->start[i], info->protect[i] ? " (RO)" : " " ); } printf ("\n"); return; } /*----------------------------------------------------------------------- */ /*----------------------------------------------------------------------- */ /* * The following code cannot be run from FLASH! */ ulong flash_get_size (volatile FLASH_WORD_SIZE *addr, flash_info_t *info) { short i; ulong base = (ulong)addr; FLASH_WORD_SIZE value; /* Write auto select command: read Manufacturer ID */ #ifndef CONFIG_SYS_FLASH_16BIT /* * Note: if it is an AMD flash and the word at addr[0000] * is 0x00890089 this routine will think it is an Intel * flash device and may(most likely) cause trouble. */ addr[0x0000] = 0x00900090; if(addr[0x0000] != 0x00890089){ addr[0x0555] = 0x00AA00AA; addr[0x02AA] = 0x00550055; addr[0x0555] = 0x00900090; #else /* * Note: if it is an AMD flash and the word at addr[0000] * is 0x0089 this routine will think it is an Intel * flash device and may(most likely) cause trouble. */ addr[0x0000] = 0x0090; if(addr[0x0000] != 0x0089){ addr[0x0555] = 0x00AA; addr[0x02AA] = 0x0055; addr[0x0555] = 0x0090; #endif } value = addr[0]; switch (value) { case (AMD_MANUFACT & FLASH_ID_MASK): info->flash_id = FLASH_MAN_AMD; break; case (FUJ_MANUFACT & FLASH_ID_MASK): info->flash_id = FLASH_MAN_FUJ; break; case (STM_MANUFACT & FLASH_ID_MASK): info->flash_id = FLASH_MAN_STM; break; case (SST_MANUFACT & FLASH_ID_MASK): info->flash_id = FLASH_MAN_SST; break; case (INTEL_MANUFACT & FLASH_ID_MASK): info->flash_id = FLASH_MAN_INTEL; break; default: info->flash_id = FLASH_UNKNOWN; info->sector_count = 0; info->size = 0; return (0); /* no or unknown flash */ } value = addr[1]; /* device ID */ switch (value) { case (AMD_ID_LV400T & FLASH_ID_MASK): info->flash_id += FLASH_AM400T; info->sector_count = 11; info->size = 0x00100000; break; /* => 1 MB */ case (AMD_ID_LV400B & FLASH_ID_MASK): info->flash_id += FLASH_AM400B; info->sector_count = 11; info->size = 0x00100000; break; /* => 1 MB */ case (AMD_ID_LV800T & FLASH_ID_MASK): info->flash_id += FLASH_AM800T; info->sector_count = 19; info->size = 0x00200000; break; /* => 2 MB */ case (AMD_ID_LV800B & FLASH_ID_MASK): info->flash_id += FLASH_AM800B; info->sector_count = 19; info->size = 0x00200000; break; /* => 2 MB */ case (AMD_ID_LV160T & FLASH_ID_MASK): info->flash_id += FLASH_AM160T; info->sector_count = 35; info->size = 0x00400000; break; /* => 4 MB */ case (AMD_ID_LV160B & FLASH_ID_MASK): info->flash_id += FLASH_AM160B; info->sector_count = 35; info->size = 0x00400000; break; /* => 4 MB */ #if 0 /* enable when device IDs are available */ case (AMD_ID_LV320T & FLASH_ID_MASK): info->flash_id += FLASH_AM320T; info->sector_count = 67; info->size = 0x00800000; break; /* => 8 MB */ case (AMD_ID_LV320B & FLASH_ID_MASK): info->flash_id += FLASH_AM320B; info->sector_count = 67; info->size = 0x00800000; break; /* => 8 MB */ #endif case (INTEL_ID_28F800B3T & FLASH_ID_MASK): info->flash_id += FLASH_INTEL800T; info->sector_count = 23; info->size = 0x00200000; break; /* => 2 MB */ case (INTEL_ID_28F800B3B & FLASH_ID_MASK): info->flash_id += FLASH_INTEL800B; info->sector_count = 23; info->size = 0x00200000; break; /* => 2 MB */ case (INTEL_ID_28F160B3T & FLASH_ID_MASK): info->flash_id += FLASH_INTEL160T; info->sector_count = 39; info->size = 0x00400000; break; /* => 4 MB */ case (INTEL_ID_28F160B3B & FLASH_ID_MASK): info->flash_id += FLASH_INTEL160B; info->sector_count = 39; info->size = 0x00400000; break; /* => 4 MB */ case (INTEL_ID_28F320B3T & FLASH_ID_MASK): info->flash_id += FLASH_INTEL320T; info->sector_count = 71; info->size = 0x00800000; break; /* => 8 MB */ case (INTEL_ID_28F320B3B & FLASH_ID_MASK): info->flash_id += FLASH_AM320B; info->sector_count = 71; info->size = 0x00800000; break; /* => 8 MB */ #if 0 /* enable when devices are available */ case (INTEL_ID_28F320B3T & FLASH_ID_MASK): info->flash_id += FLASH_INTEL320T; info->sector_count = 135; info->size = 0x01000000; break; /* => 16 MB */ case (INTEL_ID_28F320B3B & FLASH_ID_MASK): info->flash_id += FLASH_AM320B; info->sector_count = 135; info->size = 0x01000000; break; /* => 16 MB */ #endif case (INTEL_ID_28F320J3A & FLASH_ID_MASK): info->flash_id += FLASH_28F320J3A; info->sector_count = 32; info->size = 0x00400000; break; /* => 32 MBit */ case (INTEL_ID_28F640J3A & FLASH_ID_MASK): info->flash_id += FLASH_28F640J3A; info->sector_count = 64; info->size = 0x00800000; break; /* => 64 MBit */ case (INTEL_ID_28F128J3A & FLASH_ID_MASK): info->flash_id += FLASH_28F128J3A; info->sector_count = 128; info->size = 0x01000000; break; /* => 128 MBit */ default: /* FIXME*/ info->flash_id = FLASH_UNKNOWN; return (0); /* => no or unknown flash */ } flash_get_offsets(base, info); /* check for protected sectors */ for (i = 0; i < info->sector_count; i++) { /* read sector protection at sector address, (A7 .. A0) = 0x02 */ /* D0 = 1 if protected */ addr = (volatile FLASH_WORD_SIZE *)(info->start[i]); info->protect[i] = addr[2] & 1; } /* * Prevent writes to uninitialized FLASH. */ if (info->flash_id != FLASH_UNKNOWN) { addr = (volatile FLASH_WORD_SIZE *)info->start[0]; if( (info->flash_id & 0xFF00) == FLASH_MAN_INTEL){ *addr = (0x00F000F0 & FLASH_ID_MASK); /* reset bank */ } else { *addr = (0x00FF00FF & FLASH_ID_MASK); /* reset bank */ } } return (info->size); } /*----------------------------------------------------------------------- */ int flash_erase (flash_info_t *info, int s_first, int s_last) { volatile FLASH_WORD_SIZE *addr=(volatile FLASH_WORD_SIZE*)(info->start[0]); int flag, prot, sect, l_sect, barf; ulong start, now, last; int rcode = 0; if ((s_first < 0) || (s_first > s_last)) { if (info->flash_id == FLASH_UNKNOWN) { printf ("- missing\n"); } else { printf ("- no sectors to erase\n"); } return 1; } if ((info->flash_id == FLASH_UNKNOWN) || ((info->flash_id > FLASH_AMD_COMP) && ( (info->flash_id & FLASH_VENDMASK) != FLASH_MAN_INTEL ) ) ){ printf ("Can't erase unknown flash type - aborted\n"); return 1; } prot = 0; for (sect=s_first; sect<=s_last; ++sect) { if (info->protect[sect]) { prot++; } } if (prot) { printf ("- Warning: %d protected sectors will not be erased!\n", prot); } else { printf ("\n"); } l_sect = -1; /* Disable interrupts which might cause a timeout here */ flag = disable_interrupts(); if(info->flash_id < FLASH_AMD_COMP) { #ifndef CONFIG_SYS_FLASH_16BIT addr[0x0555] = 0x00AA00AA; addr[0x02AA] = 0x00550055; addr[0x0555] = 0x00800080; addr[0x0555] = 0x00AA00AA; addr[0x02AA] = 0x00550055; #else addr[0x0555] = 0x00AA; addr[0x02AA] = 0x0055; addr[0x0555] = 0x0080; addr[0x0555] = 0x00AA; addr[0x02AA] = 0x0055; #endif /* Start erase on unprotected sectors */ for (sect = s_first; sect<=s_last; sect++) { if (info->protect[sect] == 0) { /* not protected */ addr = (volatile FLASH_WORD_SIZE *)(info->start[sect]); addr[0] = (0x00300030 & FLASH_ID_MASK); l_sect = sect; } } /* re-enable interrupts if necessary */ if (flag) enable_interrupts(); /* wait at least 80us - let's wait 1 ms */ udelay (1000); /* * We wait for the last triggered sector */ if (l_sect < 0) goto DONE; start = get_timer (0); last = start; addr = (volatile FLASH_WORD_SIZE*)(info->start[l_sect]); while ((addr[0] & (0x00800080&FLASH_ID_MASK)) != (0x00800080&FLASH_ID_MASK) ) { if ((now = get_timer(start)) > CONFIG_SYS_FLASH_ERASE_TOUT) { printf ("Timeout\n"); return 1; } /* show that we're waiting */ if ((now - last) > 1000) { /* every second */ serial_putc ('.'); last = now; } } DONE: /* reset to read mode */ addr = (volatile FLASH_WORD_SIZE *)info->start[0]; addr[0] = (0x00F000F0 & FLASH_ID_MASK); /* reset bank */ } else { for (sect = s_first; sect<=s_last; sect++) { if (info->protect[sect] == 0) { /* not protected */ barf = 0; #ifndef CONFIG_SYS_FLASH_16BIT addr = (vu_long*)(info->start[sect]); addr[0] = 0x00200020; addr[0] = 0x00D000D0; while(!(addr[0] & 0x00800080)); /* wait for error or finish */ if( addr[0] & 0x003A003A) { /* check for error */ barf = addr[0] & 0x003A0000; if( barf ) { barf >>=16; } else { barf = addr[0] & 0x0000003A; } } #else addr = (vu_short*)(info->start[sect]); addr[0] = 0x0020; addr[0] = 0x00D0; while(!(addr[0] & 0x0080)); /* wait for error or finish */ if( addr[0] & 0x003A) /* check for error */ barf = addr[0] & 0x003A; #endif if(barf) { printf("\nFlash error in sector at %lx\n",(unsigned long)addr); if(barf & 0x0002) printf("Block locked, not erased.\n"); if((barf & 0x0030) == 0x0030) printf("Command Sequence error.\n"); if((barf & 0x0030) == 0x0020) printf("Block Erase error.\n"); if(barf & 0x0008) printf("Vpp Low error.\n"); rcode = 1; } else printf("."); l_sect = sect; } addr = (volatile FLASH_WORD_SIZE *)info->start[0]; addr[0] = (0x00FF00FF & FLASH_ID_MASK); /* reset bank */ } } printf (" done\n"); return rcode; } /*----------------------------------------------------------------------- */ /*flash_info_t *addr2info (ulong addr) { flash_info_t *info; int i; for (i=0, info=&flash_info[0]; i<CONFIG_SYS_MAX_FLASH_BANKS; ++i, ++info) { if ((addr >= info->start[0]) && (addr < (info->start[0] + info->size)) ) { return (info); } } return (NULL); } */ /*----------------------------------------------------------------------- * Copy memory to flash. * Make sure all target addresses are within Flash bounds, * and no protected sectors are hit. * Returns: * 0 - OK * 1 - write timeout * 2 - Flash not erased * 4 - target range includes protected sectors * 8 - target address not in Flash memory */ /*int flash_write (uchar *src, ulong addr, ulong cnt) { int i; ulong end = addr + cnt - 1; flash_info_t *info_first = addr2info (addr); flash_info_t *info_last = addr2info (end ); flash_info_t *info; if (cnt == 0) { return (0); } if (!info_first || !info_last) { return (8); } for (info = info_first; info <= info_last; ++info) { ulong b_end = info->start[0] + info->size;*/ /* bank end addr */ /* short s_end = info->sector_count - 1; for (i=0; i<info->sector_count; ++i) { ulong e_addr = (i == s_end) ? b_end : info->start[i + 1]; if ((end >= info->start[i]) && (addr < e_addr) && (info->protect[i] != 0) ) { return (4); } } } */ /* finally write data to flash */ /* for (info = info_first; info <= info_last && cnt>0; ++info) { ulong len; len = info->start[0] + info->size - addr; if (len > cnt) len = cnt; if ((i = write_buff(info, src, addr, len)) != 0) { return (i); } cnt -= len; addr += len; src += len; } return (0); } */ /*----------------------------------------------------------------------- * Copy memory to flash, returns: * 0 - OK * 1 - write timeout * 2 - Flash not erased */ int write_buff (flash_info_t *info, uchar *src, ulong addr, ulong cnt) { #ifndef CONFIG_SYS_FLASH_16BIT ulong cp, wp, data; int l; #else ulong cp, wp; ushort data; #endif int i, rc; #ifndef CONFIG_SYS_FLASH_16BIT wp = (addr & ~3); /* get lower word aligned address */ /* * handle unaligned start bytes */ if ((l = addr - wp) != 0) { data = 0; for (i=0, cp=wp; i<l; ++i, ++cp) { data = (data << 8) | (*(uchar *)cp); } for (; i<4 && cnt>0; ++i) { data = (data << 8) | *src++; --cnt; ++cp; } for (; cnt==0 && i<4; ++i, ++cp) { data = (data << 8) | (*(uchar *)cp); } if ((rc = write_word(info, wp, data)) != 0) { return (rc); } wp += 4; } /* * handle word aligned part */ while (cnt >= 4) { data = 0; for (i=0; i<4; ++i) { data = (data << 8) | *src++; } if ((rc = write_word(info, wp, data)) != 0) { return (rc); } wp += 4; cnt -= 4; } if (cnt == 0) { return (0); } /* * handle unaligned tail bytes */ data = 0; for (i=0, cp=wp; i<4 && cnt>0; ++i, ++cp) { data = (data << 8) | *src++; --cnt; } for (; i<4; ++i, ++cp) { data = (data << 8) | (*(uchar *)cp); } return (write_word(info, wp, data)); #else wp = (addr & ~1); /* get lower word aligned address */ /* * handle unaligned start byte */ if (addr - wp) { data = 0; data = (data << 8) | *src++; --cnt; if ((rc = write_short(info, wp, data)) != 0) { return (rc); } wp += 2; } /* * handle word aligned part */ /* l = 0; used for debuging */ while (cnt >= 2) { data = 0; for (i=0; i<2; ++i) { data = (data << 8) | *src++; } /* if(!l){ printf("%x",data); l = 1; } used for debuging */ if ((rc = write_short(info, wp, data)) != 0) { return (rc); } wp += 2; cnt -= 2; } if (cnt == 0) { return (0); } /* * handle unaligned tail bytes */ data = 0; for (i=0, cp=wp; i<2 && cnt>0; ++i, ++cp) { data = (data << 8) | *src++; --cnt; } for (; i<2; ++i, ++cp) { data = (data << 8) | (*(uchar *)cp); } return (write_short(info, wp, data)); #endif } /*----------------------------------------------------------------------- * Write a word to Flash, returns: * 0 - OK * 1 - write timeout * 2 - Flash not erased */ #ifndef CONFIG_SYS_FLASH_16BIT static int write_word (flash_info_t * info, ulong dest, ulong data) { vu_long *addr = (vu_long *) (info->start[0]); ulong start, barf; int flag; /* Check if Flash is (sufficiently) erased */ if ((*((vu_long *) dest) & data) != data) { return (2); } /* Disable interrupts which might cause a timeout here */ flag = disable_interrupts (); if (info->flash_id > FLASH_AMD_COMP) { /* AMD stuff */ addr[0x0555] = 0x00AA00AA; addr[0x02AA] = 0x00550055; addr[0x0555] = 0x00A000A0; } else { /* intel stuff */ *addr = 0x00400040; } *((vu_long *) dest) = data; /* re-enable interrupts if necessary */ if (flag) enable_interrupts (); /* data polling for D7 */ start = get_timer (0); if (info->flash_id > FLASH_AMD_COMP) { while ((*((vu_long *) dest) & 0x00800080) != (data & 0x00800080)) { if (get_timer (start) > CONFIG_SYS_FLASH_WRITE_TOUT) { return (1); } } } else { while (!(addr[0] & 0x00800080)) { /* wait for error or finish */ if (get_timer (start) > CONFIG_SYS_FLASH_WRITE_TOUT) { return (1); } if (addr[0] & 0x003A003A) { /* check for error */ barf = addr[0] & 0x003A0000; if (barf) { barf >>= 16; } else { barf = addr[0] & 0x0000003A; } printf ("\nFlash write error at address %lx\n", (unsigned long) dest); if (barf & 0x0002) printf ("Block locked, not erased.\n"); if (barf & 0x0010) printf ("Programming error.\n"); if (barf & 0x0008) printf ("Vpp Low error.\n"); return (2); } } return (0); } #else static int write_short (flash_info_t * info, ulong dest, ushort data) { vu_short *addr = (vu_short *) (info->start[0]); ulong start, barf; int flag; /* Check if Flash is (sufficiently) erased */ if ((*((vu_short *) dest) & data) != data) { return (2); } /* Disable interrupts which might cause a timeout here */ flag = disable_interrupts (); if (info->flash_id < FLASH_AMD_COMP) { /* AMD stuff */ addr[0x0555] = 0x00AA; addr[0x02AA] = 0x0055; addr[0x0555] = 0x00A0; } else { /* intel stuff */ *addr = 0x00D0; *addr = 0x0040; } *((vu_short *) dest) = data; /* re-enable interrupts if necessary */ if (flag) enable_interrupts (); /* data polling for D7 */ start = get_timer (0); if (info->flash_id < FLASH_AMD_COMP) { /* AMD stuff */ while ((*((vu_short *) dest) & 0x0080) != (data & 0x0080)) { if (get_timer (start) > CONFIG_SYS_FLASH_WRITE_TOUT) { return (1); } } } else { /* intel stuff */ while (!(addr[0] & 0x0080)) { /* wait for error or finish */ if (get_timer (start) > CONFIG_SYS_FLASH_WRITE_TOUT) return (1); } if (addr[0] & 0x003A) { /* check for error */ barf = addr[0] & 0x003A; printf ("\nFlash write error at address %lx\n", (unsigned long) dest); if (barf & 0x0002) printf ("Block locked, not erased.\n"); if (barf & 0x0010) printf ("Programming error.\n"); if (barf & 0x0008) printf ("Vpp Low error.\n"); return (2); } *addr = 0x00B0; *addr = 0x0070; while (!(addr[0] & 0x0080)) { /* wait for error or finish */ if (get_timer (start) > CONFIG_SYS_FLASH_WRITE_TOUT) return (1); } *addr = 0x00FF; } return (0); } #endif /*-----------------------------------------------------------------------*/