diff options
Diffstat (limited to 'board/amcc/acadia/flash.c')
| -rw-r--r-- | board/amcc/acadia/flash.c | 1108 |
1 files changed, 0 insertions, 1108 deletions
diff --git a/board/amcc/acadia/flash.c b/board/amcc/acadia/flash.c deleted file mode 100644 index 39a11f9..0000000 --- a/board/amcc/acadia/flash.c +++ /dev/null @@ -1,1108 +0,0 @@ -/* - * (C) Copyright 2004-2005 - * Wolfgang Denk, DENX Software Engineering, wd@denx.de. - * - * (C) Copyright 2002 Jun Gu <jung@artesyncp.com> - * Add support for Am29F016D and dynamic switch setting. - * - * 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 - */ - -/* - * Modified 4/5/2001 - * Wait for completion of each sector erase command issued - * 4/5/2001 - * Chris Hallinan - DS4.COM, Inc. - clh@net1plus.com - */ - -#include <common.h> -#include <ppc4xx.h> -#include <asm/processor.h> - -#ifdef DEBUG -#define DEBUGF(x...) printf(x) -#else -#define DEBUGF(x...) -#endif /* DEBUG */ - -flash_info_t flash_info[CFG_MAX_FLASH_BANKS]; /* info for FLASH chips */ - -/* - * Mark big flash bank (16 bit instead of 8 bit access) in address with bit 0 - */ -static unsigned long flash_addr_table[][CFG_MAX_FLASH_BANKS] = { - {0xffc00001}, /* 0:boot from big flash */ -}; - -/* - * include common flash code (for amcc boards) - */ -/*----------------------------------------------------------------------- - * Functions - */ -static int write_word(flash_info_t * info, ulong dest, ulong data); -#ifdef CFG_FLASH_2ND_16BIT_DEV -static int write_word_1(flash_info_t * info, ulong dest, ulong data); -static int write_word_2(flash_info_t * info, ulong dest, ulong data); -static int flash_erase_1(flash_info_t * info, int s_first, int s_last); -static int flash_erase_2(flash_info_t * info, int s_first, int s_last); -static ulong flash_get_size_1(vu_long * addr, flash_info_t * info); -static ulong flash_get_size_2(vu_long * addr, flash_info_t * info); -#endif - -void flash_print_info(flash_info_t * info) -{ - int i; - int k; - int size; - int erased; - volatile unsigned long *flash; - - 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_STM: - printf("STM "); - break; - case FLASH_MAN_FUJ: - printf("FUJITSU "); - break; - case FLASH_MAN_SST: - printf("SST "); - break; - case FLASH_MAN_MX: - printf("MIXC "); - break; - default: - printf("Unknown Vendor "); - break; - } - - switch (info->flash_id & FLASH_TYPEMASK) { - case FLASH_AM040: - printf("AM29F040 (512 Kbit, uniform sector size)\n"); - break; - case FLASH_AM400B: - printf("AM29LV400B (4 Mbit, bottom boot sect)\n"); - break; - case FLASH_AM400T: - printf("AM29LV400T (4 Mbit, top boot sector)\n"); - break; - case FLASH_AM800B: - printf("AM29LV800B (8 Mbit, bottom boot sect)\n"); - break; - case FLASH_AM800T: - printf("AM29LV800T (8 Mbit, top boot sector)\n"); - break; - case FLASH_AMD016: - printf("AM29F016D (16 Mbit, uniform sector size)\n"); - break; - case FLASH_AM160B: - printf("AM29LV160B (16 Mbit, bottom boot sect)\n"); - break; - case FLASH_AM160T: - printf("AM29LV160T (16 Mbit, top boot sector)\n"); - break; - case FLASH_AM320B: - printf("AM29LV320B (32 Mbit, bottom boot sect)\n"); - break; - case FLASH_AM320T: - printf("AM29LV320T (32 Mbit, top boot sector)\n"); - break; - case FLASH_AM033C: - printf("AM29LV033C (32 Mbit, top boot sector)\n"); - break; - case FLASH_SST800A: - printf("SST39LF/VF800 (8 Mbit, uniform sector size)\n"); - break; - case FLASH_SST160A: - printf("SST39LF/VF160 (16 Mbit, uniform sector size)\n"); - break; - case FLASH_STMW320DT: - printf ("M29W320DT (32 M, top sector)\n"); - break; - case FLASH_MXLV320T: - printf ("MXLV320T (32 Mbit, top sector)\n"); - break; - default: - printf("Unknown Chip Type\n"); - break; - } - - printf(" Size: %ld KB in %d Sectors\n", - info->size >> 10, info->sector_count); - - printf(" Sector Start Addresses:"); - for (i = 0; i < info->sector_count; ++i) { - /* - * Check if whole sector is erased - */ - if (i != (info->sector_count - 1)) - size = info->start[i + 1] - info->start[i]; - else - size = info->start[0] + info->size - info->start[i]; - erased = 1; - flash = (volatile unsigned long *)info->start[i]; - size = size >> 2; /* divide by 4 for longword access */ - for (k = 0; k < size; k++) { - if (*flash++ != 0xffffffff) { - erased = 0; - break; - } - } - - if ((i % 5) == 0) - printf("\n "); - printf(" %08lX%s%s", - info->start[i], - erased ? " E" : " ", info->protect[i] ? "RO " : " "); - } - printf("\n"); - return; -} - -/* - * The following code cannot be run from FLASH! - */ -#ifdef CFG_FLASH_2ND_16BIT_DEV -static ulong flash_get_size(vu_long * addr, flash_info_t * info) -{ - /* bit 0 used for big flash marking */ - if ((ulong)addr & 0x1) { - return flash_get_size_2((vu_long *)((ulong)addr & 0xfffffffe), info); - } else { - return flash_get_size_1(addr, info); - } -} - -static ulong flash_get_size_1(vu_long * addr, flash_info_t * info) -#else -static ulong flash_get_size(vu_long * addr, flash_info_t * info) -#endif -{ - short i; - CFG_FLASH_WORD_SIZE value; - ulong base = (ulong) addr; - volatile CFG_FLASH_WORD_SIZE *addr2 = (CFG_FLASH_WORD_SIZE *) addr; - - DEBUGF("FLASH ADDR: %08x\n", (unsigned)addr); - - /* Write auto select command: read Manufacturer ID */ - addr2[CFG_FLASH_ADDR0] = (CFG_FLASH_WORD_SIZE) 0x00AA00AA; - addr2[CFG_FLASH_ADDR1] = (CFG_FLASH_WORD_SIZE) 0x00550055; - addr2[CFG_FLASH_ADDR0] = (CFG_FLASH_WORD_SIZE) 0x00900090; - udelay(1000); - - value = addr2[0]; - DEBUGF("FLASH MANUFACT: %x\n", value); - - switch (value) { - case (CFG_FLASH_WORD_SIZE) AMD_MANUFACT: - info->flash_id = FLASH_MAN_AMD; - break; - case (CFG_FLASH_WORD_SIZE) FUJ_MANUFACT: - info->flash_id = FLASH_MAN_FUJ; - break; - case (CFG_FLASH_WORD_SIZE) SST_MANUFACT: - info->flash_id = FLASH_MAN_SST; - break; - case (CFG_FLASH_WORD_SIZE) STM_MANUFACT: - info->flash_id = FLASH_MAN_STM; - break; - default: - info->flash_id = FLASH_UNKNOWN; - info->sector_count = 0; - info->size = 0; - return (0); /* no or unknown flash */ - } - - value = addr2[1]; /* device ID */ - DEBUGF("\nFLASH DEVICEID: %x\n", value); - - switch (value) { - case (CFG_FLASH_WORD_SIZE) AMD_ID_LV040B: - info->flash_id += FLASH_AM040; - info->sector_count = 8; - info->size = 0x0080000; /* => 512 ko */ - break; - - case (CFG_FLASH_WORD_SIZE) AMD_ID_F040B: - info->flash_id += FLASH_AM040; - info->sector_count = 8; - info->size = 0x0080000; /* => 512 ko */ - break; - - case (CFG_FLASH_WORD_SIZE) STM_ID_M29W040B: - info->flash_id += FLASH_AM040; - info->sector_count = 8; - info->size = 0x0080000; /* => 512 ko */ - break; - - case (CFG_FLASH_WORD_SIZE) AMD_ID_F016D: - info->flash_id += FLASH_AMD016; - info->sector_count = 32; - info->size = 0x00200000; - break; /* => 2 MB */ - - case (CFG_FLASH_WORD_SIZE) AMD_ID_LV033C: - info->flash_id += FLASH_AMDLV033C; - info->sector_count = 64; - info->size = 0x00400000; - break; /* => 4 MB */ - - case (CFG_FLASH_WORD_SIZE) AMD_ID_LV400T: - info->flash_id += FLASH_AM400T; - info->sector_count = 11; - info->size = 0x00080000; - break; /* => 0.5 MB */ - - case (CFG_FLASH_WORD_SIZE) AMD_ID_LV400B: - info->flash_id += FLASH_AM400B; - info->sector_count = 11; - info->size = 0x00080000; - break; /* => 0.5 MB */ - - case (CFG_FLASH_WORD_SIZE) AMD_ID_LV800T: - info->flash_id += FLASH_AM800T; - info->sector_count = 19; - info->size = 0x00100000; - break; /* => 1 MB */ - - case (CFG_FLASH_WORD_SIZE) AMD_ID_LV800B: - info->flash_id += FLASH_AM800B; - info->sector_count = 19; - info->size = 0x00100000; - break; /* => 1 MB */ - - case (CFG_FLASH_WORD_SIZE) AMD_ID_LV160T: - info->flash_id += FLASH_AM160T; - info->sector_count = 35; - info->size = 0x00200000; - break; /* => 2 MB */ - - case (CFG_FLASH_WORD_SIZE) AMD_ID_LV160B: - info->flash_id += FLASH_AM160B; - info->sector_count = 35; - info->size = 0x00200000; - break; /* => 2 MB */ - - default: - info->flash_id = FLASH_UNKNOWN; - return (0); /* => no or unknown flash */ - } - - /* set up sector start address table */ - if (((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_SST) || - ((info->flash_id & FLASH_TYPEMASK) == FLASH_AM040) || - ((info->flash_id & FLASH_TYPEMASK) == FLASH_AMD016)) { - for (i = 0; i < info->sector_count; i++) - info->start[i] = base + (i * 0x00010000); - } else { - if (info->flash_id & FLASH_BTYPE) { - /* 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; - } - } else { - /* set sector offsets for top boot block type */ - i = info->sector_count - 1; - 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; - } - } - } - - /* 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 */ - addr2 = (volatile CFG_FLASH_WORD_SIZE *)(info->start[i]); - - /* For AMD29033C flash we need to resend the command of * - * reading flash protection for upper 8 Mb of flash */ - if (i == 32) { - addr2[CFG_FLASH_ADDR0] = (CFG_FLASH_WORD_SIZE) 0xAAAAAAAA; - addr2[CFG_FLASH_ADDR1] = (CFG_FLASH_WORD_SIZE) 0x55555555; - addr2[CFG_FLASH_ADDR0] = (CFG_FLASH_WORD_SIZE) 0x90909090; - } - - if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_SST) - info->protect[i] = 0; - else - info->protect[i] = addr2[2] & 1; - } - - /* issue bank reset to return to read mode */ - addr2[0] = (CFG_FLASH_WORD_SIZE) 0x00F000F0; - - return (info->size); -} - -static int wait_for_DQ7_1(flash_info_t * info, int sect) -{ - ulong start, now, last; - volatile CFG_FLASH_WORD_SIZE *addr = - (CFG_FLASH_WORD_SIZE *) (info->start[sect]); - - start = get_timer(0); - last = start; - while ((addr[0] & (CFG_FLASH_WORD_SIZE) 0x00800080) != - (CFG_FLASH_WORD_SIZE) 0x00800080) { - if ((now = get_timer(start)) > CFG_FLASH_ERASE_TOUT) { - printf("Timeout\n"); - return -1; - } - /* show that we're waiting */ - if ((now - last) > 1000) { /* every second */ - putc('.'); - last = now; - } - } - return 0; -} - -#ifdef CFG_FLASH_2ND_16BIT_DEV -int flash_erase(flash_info_t * info, int s_first, int s_last) -{ - if (((info->flash_id & FLASH_TYPEMASK) == FLASH_AM320B) || - ((info->flash_id & FLASH_TYPEMASK) == FLASH_AM320T) || - ((info->flash_id & FLASH_TYPEMASK) == FLASH_STMW320DT) || - ((info->flash_id & FLASH_TYPEMASK) == FLASH_MXLV320T)) { - return flash_erase_2(info, s_first, s_last); - } else { - return flash_erase_1(info, s_first, s_last); - } -} - -static int flash_erase_1(flash_info_t * info, int s_first, int s_last) -#else -int flash_erase(flash_info_t * info, int s_first, int s_last) -#endif -{ - volatile CFG_FLASH_WORD_SIZE *addr = (CFG_FLASH_WORD_SIZE *) (info->start[0]); - volatile CFG_FLASH_WORD_SIZE *addr2; - int flag, prot, sect, l_sect; - int i; - - 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) { - 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(); - - /* Start erase on unprotected sectors */ - for (sect = s_first; sect <= s_last; sect++) { - if (info->protect[sect] == 0) { /* not protected */ - addr2 = (CFG_FLASH_WORD_SIZE *) (info->start[sect]); - - if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_SST) { - addr[CFG_FLASH_ADDR0] = (CFG_FLASH_WORD_SIZE) 0x00AA00AA; - addr[CFG_FLASH_ADDR1] = (CFG_FLASH_WORD_SIZE) 0x00550055; - addr[CFG_FLASH_ADDR0] = (CFG_FLASH_WORD_SIZE) 0x00800080; - addr[CFG_FLASH_ADDR0] = (CFG_FLASH_WORD_SIZE) 0x00AA00AA; - addr[CFG_FLASH_ADDR1] = (CFG_FLASH_WORD_SIZE) 0x00550055; - addr2[0] = (CFG_FLASH_WORD_SIZE) 0x00500050; /* block erase */ - for (i = 0; i < 50; i++) - udelay(1000); /* wait 1 ms */ - } else { - addr[CFG_FLASH_ADDR0] = (CFG_FLASH_WORD_SIZE) 0x00AA00AA; - addr[CFG_FLASH_ADDR1] = (CFG_FLASH_WORD_SIZE) 0x00550055; - addr[CFG_FLASH_ADDR0] = (CFG_FLASH_WORD_SIZE) 0x00800080; - addr[CFG_FLASH_ADDR0] = (CFG_FLASH_WORD_SIZE) 0x00AA00AA; - addr[CFG_FLASH_ADDR1] = (CFG_FLASH_WORD_SIZE) 0x00550055; - addr2[0] = (CFG_FLASH_WORD_SIZE) 0x00300030; /* sector erase */ - } - l_sect = sect; - /* - * Wait for each sector to complete, it's more - * reliable. According to AMD Spec, you must - * issue all erase commands within a specified - * timeout. This has been seen to fail, especially - * if printf()s are included (for debug)!! - */ - wait_for_DQ7_1(info, sect); - } - } - - /* re-enable interrupts if necessary */ - if (flag) - enable_interrupts(); - - /* wait at least 80us - let's wait 1 ms */ - udelay(1000); - - /* reset to read mode */ - addr = (CFG_FLASH_WORD_SIZE *) info->start[0]; - addr[0] = (CFG_FLASH_WORD_SIZE) 0x00F000F0; /* reset bank */ - - printf(" done\n"); - 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) -{ - ulong cp, wp, data; - int i, l, rc; - - 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)); -} - -/*----------------------------------------------------------------------- - * Copy memory to flash, returns: - * 0 - OK - * 1 - write timeout - * 2 - Flash not erased - */ -#ifdef CFG_FLASH_2ND_16BIT_DEV -static int write_word(flash_info_t * info, ulong dest, ulong data) -{ - if (((info->flash_id & FLASH_TYPEMASK) == FLASH_AM320B) || - ((info->flash_id & FLASH_TYPEMASK) == FLASH_AM320T) || - ((info->flash_id & FLASH_TYPEMASK) == FLASH_STMW320DT) || - ((info->flash_id & FLASH_TYPEMASK) == FLASH_MXLV320T)) { - return write_word_2(info, dest, data); - } else { - return write_word_1(info, dest, data); - } -} - -static int write_word_1(flash_info_t * info, ulong dest, ulong data) -#else -static int write_word(flash_info_t * info, ulong dest, ulong data) -#endif -{ - volatile CFG_FLASH_WORD_SIZE *addr2 = (CFG_FLASH_WORD_SIZE *) (info->start[0]); - volatile CFG_FLASH_WORD_SIZE *dest2 = (CFG_FLASH_WORD_SIZE *) dest; - volatile CFG_FLASH_WORD_SIZE *data2 = (CFG_FLASH_WORD_SIZE *) & data; - ulong start; - int i; - - /* Check if Flash is (sufficiently) erased */ - if ((*((vu_long *)dest) & data) != data) { - return (2); - } - - for (i = 0; i < 4 / sizeof(CFG_FLASH_WORD_SIZE); i++) { - int flag; - - /* Disable interrupts which might cause a timeout here */ - flag = disable_interrupts(); - - addr2[CFG_FLASH_ADDR0] = (CFG_FLASH_WORD_SIZE) 0x00AA00AA; - addr2[CFG_FLASH_ADDR1] = (CFG_FLASH_WORD_SIZE) 0x00550055; - addr2[CFG_FLASH_ADDR0] = (CFG_FLASH_WORD_SIZE) 0x00A000A0; - - dest2[i] = data2[i]; - - /* re-enable interrupts if necessary */ - if (flag) - enable_interrupts(); - - /* data polling for D7 */ - start = get_timer(0); - while ((dest2[i] & (CFG_FLASH_WORD_SIZE) 0x00800080) != - (data2[i] & (CFG_FLASH_WORD_SIZE) 0x00800080)) { - - if (get_timer(start) > CFG_FLASH_WRITE_TOUT) { - return (1); - } - } - } - - return (0); -} - -#ifdef CFG_FLASH_2ND_16BIT_DEV - -#undef CFG_FLASH_WORD_SIZE -#define CFG_FLASH_WORD_SIZE unsigned short - -/* - * The following code cannot be run from FLASH! - */ -static ulong flash_get_size_2(vu_long * addr, flash_info_t * info) -{ - short i; - int n; - CFG_FLASH_WORD_SIZE value; - ulong base = (ulong) addr; - volatile CFG_FLASH_WORD_SIZE *addr2 = (CFG_FLASH_WORD_SIZE *) addr; - - DEBUGF("FLASH ADDR: %08x\n", (unsigned)addr); - - /* issue bank reset to return to read mode */ - addr2[0] = (CFG_FLASH_WORD_SIZE) 0x00F000F0; - /* Write auto select command: read Manufacturer ID */ - addr2[CFG_FLASH_ADDR0] = (CFG_FLASH_WORD_SIZE) 0x00AA00AA; - addr2[CFG_FLASH_ADDR1] = (CFG_FLASH_WORD_SIZE) 0x00550055; - addr2[CFG_FLASH_ADDR0] = (CFG_FLASH_WORD_SIZE) 0x00900090; - udelay(1000); - - value = addr2[0]; - DEBUGF("FLASH MANUFACT: %x\n", value); - -#if 0 /* TODO: remove ifdef when Flash responds correctly */ - switch (value) { - case (CFG_FLASH_WORD_SIZE) AMD_MANUFACT: - info->flash_id = FLASH_MAN_AMD; - break; - case (CFG_FLASH_WORD_SIZE) FUJ_MANUFACT: - info->flash_id = FLASH_MAN_FUJ; - break; - case (CFG_FLASH_WORD_SIZE) SST_MANUFACT: - info->flash_id = FLASH_MAN_SST; - break; - case (CFG_FLASH_WORD_SIZE) STM_MANUFACT: - info->flash_id = FLASH_MAN_STM; - break; - case (CFG_FLASH_WORD_SIZE) MX_MANUFACT: - info->flash_id = FLASH_MAN_MX; - break; - default: - info->flash_id = FLASH_UNKNOWN; - info->sector_count = 0; - info->size = 0; - return (0); /* no or unknown flash */ - } -#endif /* TODO: remove ifdef when Flash responds correctly */ - - /* - * TODO: Start - * uncomment block above when Flash responds correctly. - * also remove the lines below: - */ - info->flash_id = FLASH_MAN_AMD; - DEBUGF("FLASH MANUFACT: FLASH_MAN_AMD\n"); - /* TODO: End */ - - value = addr2[1]; /* device ID */ - - DEBUGF("\nFLASH DEVICEID: %x\n", value); - -#if 0 /* TODO: remove ifdef when Flash responds correctly */ - switch (value) { - - case (CFG_FLASH_WORD_SIZE)AMD_ID_LV320T: - info->flash_id += FLASH_AM320T; - info->sector_count = 71; - info->size = 0x00400000; break; /* => 4 MB */ - - case (CFG_FLASH_WORD_SIZE)AMD_ID_LV320B: - info->flash_id += FLASH_AM320B; - info->sector_count = 71; - info->size = 0x00400000; break; /* => 4 MB */ - - case (CFG_FLASH_WORD_SIZE)STM_ID_29W320DT: - info->flash_id += FLASH_STMW320DT; - info->sector_count = 67; - info->size = 0x00400000; break; /* => 4 MB */ - - case (CFG_FLASH_WORD_SIZE)MX_ID_LV320T: - info->flash_id += FLASH_MXLV320T; - info->sector_count = 71; - info->size = 0x00400000; break; /* => 4 MB */ - - default: - info->flash_id = FLASH_UNKNOWN; - return (0); /* => no or unknown flash */ - } -#endif /* TODO: remove ifdef when Flash responds correctly */ - - /* - * TODO: Start - * uncomment block above when Flash responds correctly. - * also remove the lines below: - */ - DEBUGF("\nFLASH DEVICEID: FLASH_AM320T\n"); - info->flash_id += FLASH_AM320T; - info->sector_count = 71; - info->size = 0x00400000; /* => 4 MB */ - /* TODO: End */ - - /* set up sector start address table */ - if (((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_SST) || - ((info->flash_id & FLASH_TYPEMASK) == FLASH_AM040) || - ((info->flash_id & FLASH_TYPEMASK) == FLASH_AMD016)) { - for (i = 0; i < info->sector_count; i++) - info->start[i] = base + (i * 0x00010000); - } else if ((info->flash_id & FLASH_TYPEMASK) == FLASH_STMW320DT) { - /* set sector offsets for top boot block type */ - base += info->size; - i = info->sector_count; - /* 1 x 16k boot sector */ - base -= 16 << 10; - --i; - info->start[i] = base; - /* 2 x 8k boot sectors */ - for (n=0; n<2; ++n) { - base -= 8 << 10; - --i; - info->start[i] = base; - } - /* 1 x 32k boot sector */ - base -= 32 << 10; - --i; - info->start[i] = base; - - while (i > 0) { /* 64k regular sectors */ - base -= 64 << 10; - --i; - info->start[i] = base; - } - } else if ( ((info->flash_id & FLASH_TYPEMASK) == FLASH_MXLV320T) || - ((info->flash_id & FLASH_TYPEMASK) == FLASH_AM320T) ) { - i = info->sector_count - 1; - 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; - info->start[i--] = base + info->size - 0x00010000; - for (; i >= 0; i--) { - info->start[i] = base + i * 0x00010000; - } - } - else { - if (info->flash_id & FLASH_BTYPE){ - /* 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; - } - } else { - /* set sector offsets for top boot block type */ - i = info->sector_count - 1; - 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; - } - } - } - - /* 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 */ - addr2 = (volatile CFG_FLASH_WORD_SIZE *)(info->start[i]); - - /* For AMD29033C flash we need to resend the command of * - * reading flash protection for upper 8 Mb of flash */ - if (i == 32) { - addr2[CFG_FLASH_ADDR0] = (CFG_FLASH_WORD_SIZE) 0xAAAAAAAA; - addr2[CFG_FLASH_ADDR1] = (CFG_FLASH_WORD_SIZE) 0x55555555; - addr2[CFG_FLASH_ADDR0] = (CFG_FLASH_WORD_SIZE) 0x90909090; - } - - if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_SST) - info->protect[i] = 0; - else - info->protect[i] = addr2[2] & 1; - } - - /* issue bank reset to return to read mode */ - addr2[0] = (CFG_FLASH_WORD_SIZE) 0x00F000F0; - - return (info->size); -} - -/* - * TODO: FIX: this wait loop sometimes fails: DQ7 indicates the erase command - * never was accepted (i.e. didn't start) - why???? - */ -static int wait_for_DQ7_2(flash_info_t * info, int sect) -{ - ulong start, now, last, counter = 0; - volatile CFG_FLASH_WORD_SIZE *addr = - (CFG_FLASH_WORD_SIZE *) (info->start[sect]); - - start = get_timer(0); - DEBUGF("DQ7_2: start = 0x%08lx\n", start); - last = start; - while ((addr[0] & (CFG_FLASH_WORD_SIZE) 0x00800080) != - (CFG_FLASH_WORD_SIZE) 0x00800080) { - DEBUGF("DQ7_2: start = 0x%08lx, now = 0x%08lx\n", start, now); - if ((now = get_timer(start)) > CFG_FLASH_ERASE_TOUT) { - printf("Timeout\n"); - return -1; - } - /* show that we're waiting */ - if ((now - last) > 1000) { /* every second */ - putc('.'); - last = now; - } - udelay(1000000); /* 1 sec */ - putc('.'); - counter++; - if (counter > 5) { - return -1; - } - DEBUGF("DQ7_2: now = 0x%08lx, last = 0x%08lx\n", now, last); - } - return 0; -} - -static void wr_flash_cmd(ulong sector, ushort addr, CFG_FLASH_WORD_SIZE value) -{ - int fw_size; - - fw_size = sizeof(value); - switch (fw_size) - { - case 1: - out8((ulong)(sector + addr), value); - break; - case 2: - out16((ulong)(sector + (addr << 1)), value); - break; - default: - printf("flash_erase: error incorrect chip programing size.\n"); - } - return; -} - -static int flash_erase_2(flash_info_t * info, int s_first, int s_last) -{ - volatile CFG_FLASH_WORD_SIZE *addr = (CFG_FLASH_WORD_SIZE *) (info->start[0]); - volatile CFG_FLASH_WORD_SIZE *addr2; - int flag, prot, sect, l_sect, count = 0; - int i; - - 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) { - 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(); - - /* Start erase on unprotected sectors */ - for (sect = s_first, count = 0; sect <= s_last; sect++) { - if (info->protect[sect] == 0) { /* not protected */ - addr2 = (CFG_FLASH_WORD_SIZE *) (info->start[sect]); - - if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_SST) { - addr[CFG_FLASH_ADDR0] = (CFG_FLASH_WORD_SIZE) 0x00AA00AA; - addr[CFG_FLASH_ADDR1] = (CFG_FLASH_WORD_SIZE) 0x00550055; - addr[CFG_FLASH_ADDR0] = (CFG_FLASH_WORD_SIZE) 0x00800080; - addr[CFG_FLASH_ADDR0] = (CFG_FLASH_WORD_SIZE) 0x00AA00AA; - addr[CFG_FLASH_ADDR1] = (CFG_FLASH_WORD_SIZE) 0x00550055; - addr2[0] = (CFG_FLASH_WORD_SIZE) 0x00500050; /* block erase */ - for (i = 0; i < 50; i++) - udelay(1000); /* wait 1 ms */ - } else { - /* - * TODO: fix code - */ - wr_flash_cmd((ulong)addr, 0, (CFG_FLASH_WORD_SIZE) 0x00F000F0); - wr_flash_cmd((ulong)addr, CFG_FLASH_ADDR0, (CFG_FLASH_WORD_SIZE) 0x00AA00AA); - wr_flash_cmd((ulong)addr, CFG_FLASH_ADDR1, (CFG_FLASH_WORD_SIZE) 0x00550055); - wr_flash_cmd((ulong)addr, CFG_FLASH_ADDR0, (CFG_FLASH_WORD_SIZE) 0x00800080); - wr_flash_cmd((ulong)addr, CFG_FLASH_ADDR0, (CFG_FLASH_WORD_SIZE) 0x00AA00AA); - wr_flash_cmd((ulong)addr, CFG_FLASH_ADDR1, (CFG_FLASH_WORD_SIZE) 0x00550055); - wr_flash_cmd((ulong)addr2, 0, (CFG_FLASH_WORD_SIZE) 0x00300030); - udelay(2000000); /* 2 sec */ - wr_flash_cmd((ulong)addr, 0, (CFG_FLASH_WORD_SIZE) 0x00F000F0); - -#if 0 - addr[CFG_FLASH_ADDR0] = (CFG_FLASH_WORD_SIZE) 0x00AA00AA; - addr[CFG_FLASH_ADDR1] = (CFG_FLASH_WORD_SIZE) 0x00550055; - addr[CFG_FLASH_ADDR0] = (CFG_FLASH_WORD_SIZE) 0x00800080; - addr[CFG_FLASH_ADDR0] = (CFG_FLASH_WORD_SIZE) 0x00AA00AA; - addr[CFG_FLASH_ADDR1] = (CFG_FLASH_WORD_SIZE) 0x00550055; - addr2[0] = (CFG_FLASH_WORD_SIZE) 0x00300030; /* sector erase */ -#endif - } - l_sect = sect; - printf(".."); - printf(".."); - /* - * Wait for each sector to complete, it's more - * reliable. According to AMD Spec, you must - * issue all erase commands within a specified - * timeout. This has been seen to fail, especially - * if printf()s are included (for debug)!! - */ - wait_for_DQ7_2(info, sect); - count++; - } - } - - /* re-enable interrupts if necessary */ - if (flag) - enable_interrupts(); - - /* wait at least 80us - let's wait 1 ms */ - udelay(1000); - - /* reset to read mode */ - addr = (CFG_FLASH_WORD_SIZE *) info->start[0]; - addr[0] = (CFG_FLASH_WORD_SIZE) 0x00F000F0; /* reset bank */ - - printf(" done\n"); - - if (count > 0) { - return 0; - } else { - return 1; - } -} - -static int write_word_2(flash_info_t * info, ulong dest, ulong data) -{ - volatile CFG_FLASH_WORD_SIZE *addr2 = (CFG_FLASH_WORD_SIZE *) (info->start[0]); - volatile CFG_FLASH_WORD_SIZE *dest2 = (CFG_FLASH_WORD_SIZE *) dest; - volatile CFG_FLASH_WORD_SIZE *data2 = (CFG_FLASH_WORD_SIZE *) & data; - ulong start; - int i; - - /* Check if Flash is (sufficiently) erased */ - if ((*((vu_long *)dest) & data) != data) { - return (2); - } - - for (i = 0; i < 4 / sizeof(CFG_FLASH_WORD_SIZE); i++) { - int flag; - - /* Disable interrupts which might cause a timeout here */ - flag = disable_interrupts(); - - addr2[CFG_FLASH_ADDR0] = (CFG_FLASH_WORD_SIZE) 0x00AA00AA; - addr2[CFG_FLASH_ADDR1] = (CFG_FLASH_WORD_SIZE) 0x00550055; - addr2[CFG_FLASH_ADDR0] = (CFG_FLASH_WORD_SIZE) 0x00A000A0; - - dest2[i] = data2[i]; - - /* re-enable interrupts if necessary */ - if (flag) - enable_interrupts(); - - /* data polling for D7 */ - start = get_timer(0); - while ((dest2[i] & (CFG_FLASH_WORD_SIZE) 0x00800080) != - (data2[i] & (CFG_FLASH_WORD_SIZE) 0x00800080)) { - - if (get_timer(start) > CFG_FLASH_WRITE_TOUT) { - return (1); - } - } - } - - return (0); -} -#endif /* CFG_FLASH_2ND_16BIT_DEV */ - -/*----------------------------------------------------------------------- - * Functions - */ -static ulong flash_get_size(vu_long * addr, flash_info_t * info); -static int write_word(flash_info_t * info, ulong dest, ulong data); - -/*----------------------------------------------------------------------- - */ - -unsigned long flash_init(void) -{ - unsigned long total_b = 0; - unsigned long size_b[CFG_MAX_FLASH_BANKS]; - unsigned short index = 0; - int i; - - index = 0; - - DEBUGF("\n"); - DEBUGF("FLASH: Index: %d\n", index); - - /* Init: no FLASHes known */ - for (i = 0; i < CFG_MAX_FLASH_BANKS; ++i) { - flash_info[i].flash_id = FLASH_UNKNOWN; - flash_info[i].sector_count = -1; - flash_info[i].size = 0; - - /* check whether the address is 0 */ - if (flash_addr_table[index][i] == 0) { - continue; - } - - /* call flash_get_size() to initialize sector address */ - size_b[i] = flash_get_size((vu_long *) flash_addr_table[index][i], - &flash_info[i]); - flash_info[i].size = size_b[i]; - if (flash_info[i].flash_id == FLASH_UNKNOWN) { - printf("## Unknown FLASH on Bank %d - Size = 0x%08lx = %ld MB\n", - i, size_b[i], size_b[i] << 20); - flash_info[i].sector_count = -1; - flash_info[i].size = 0; - } - - /* Monitor protection ON by default */ - (void)flash_protect(FLAG_PROTECT_SET, CFG_MONITOR_BASE, - CFG_MONITOR_BASE + CFG_MONITOR_LEN - 1, - &flash_info[i]); -#if defined(CFG_ENV_IS_IN_FLASH) - (void)flash_protect(FLAG_PROTECT_SET, CFG_ENV_ADDR, - CFG_ENV_ADDR + CFG_ENV_SECT_SIZE - 1, - &flash_info[i]); -#if defined(CFG_ENV_IS_IN_FLASH) && defined(CFG_ENV_ADDR_REDUND) - (void)flash_protect(FLAG_PROTECT_SET, CFG_ENV_ADDR_REDUND, - CFG_ENV_ADDR_REDUND + CFG_ENV_SECT_SIZE - 1, - &flash_info[i]); -#endif -#endif - - total_b += flash_info[i].size; - } - - return total_b; -} |