Author: hailfinger Date: Sun Dec 5 17:33:59 2010 New Revision: 1245 URL: http://flashrom.org/trac/flashrom/changeset/1245
Log: Add support for Winbond W39V040FB and W39V040FC.
Print lock status for all supported Winbond W39* chips: W39V040A, W39V040B, W39V040C, W39V040FA, W39V040FB, W39V040FC, W39V080A, W39V080FA, W39V080FA (dual mode).
Fill in correct probe timing for Winbond W39V040C and W39V080FA.
Please note that the W39V040B/W39V040FB pair has identical IDs, identical read/write/erase, but locking differs. Same applies to W39V040C/W39V040FC. This causes double detection on chipsets which support LPC and FWH, making flashing more difficult because the user has to select the correct chip. This is called the evil twin problem. A better evil twin handling (patch available) will resolve that problem.
Signed-off-by: Carl-Daniel Hailfinger c-d.hailfinger.devel.2006@gmx.net Acked-by: Michael Karcher flashrom@mkarcher.dialup.fu-berlin.de
Added: trunk/w39.c - copied, changed from r1241, trunk/w39v080fa.c Deleted: trunk/w39v040c.c trunk/w39v080fa.c Modified: trunk/Makefile trunk/chipdrivers.h trunk/flashchips.c
Modified: trunk/Makefile ============================================================================== --- trunk/Makefile Sun Dec 5 16:14:44 2010 (r1244) +++ trunk/Makefile Sun Dec 5 17:33:59 2010 (r1245) @@ -82,7 +82,7 @@ endif endif
-CHIP_OBJS = jedec.o stm50flw0x0x.o w39v040c.o w39v080fa.o w29ee011.o \ +CHIP_OBJS = jedec.o stm50flw0x0x.o w39.o w29ee011.o \ sst28sf040.o m29f400bt.o 82802ab.o pm49fl00x.o \ sst49lfxxxc.o sst_fwhub.o flashchips.o spi.o spi25.o sharplhf00l04.o
Modified: trunk/chipdrivers.h ============================================================================== --- trunk/chipdrivers.h Sun Dec 5 16:14:44 2010 (r1244) +++ trunk/chipdrivers.h Sun Dec 5 17:33:59 2010 (r1245) @@ -109,11 +109,17 @@ int printlock_sst_fwhub(struct flashchip *flash); int unlock_sst_fwhub(struct flashchip *flash);
-/* w39v040c.c */ +/* w39.c */ +int printlock_w39v040a(struct flashchip *flash); +int printlock_w39v040b(struct flashchip *flash); int printlock_w39v040c(struct flashchip *flash); - -/* w39V080fa.c */ -int unlock_winbond_fwhub(struct flashchip *flash); +int printlock_w39v040fa(struct flashchip *flash); +int printlock_w39v040fb(struct flashchip *flash); +int printlock_w39v040fc(struct flashchip *flash); +int printlock_w39v080a(struct flashchip *flash); +int printlock_w39v080fa(struct flashchip *flash); +int printlock_w39v080fa_dual(struct flashchip *flash); +int unlock_w39v080fa(struct flashchip *flash);
/* w29ee011.c */ int probe_w29ee011(struct flashchip *flash);
Modified: trunk/flashchips.c ============================================================================== --- trunk/flashchips.c Sun Dec 5 16:14:44 2010 (r1244) +++ trunk/flashchips.c Sun Dec 5 17:33:59 2010 (r1245) @@ -7593,13 +7593,14 @@ .block_erase = erase_chip_block_jedec, } }, + .printlock = printlock_w39v040a, .write = write_jedec_1, .read = read_memmapped, },
{ .vendor = "Winbond", - .name = "W39V040(F)B", + .name = "W39V040B", .bustype = CHIP_BUSTYPE_LPC, .manufacture_id = WINBOND_ID, .model_id = WINBOND_W39V040B, @@ -7619,13 +7620,14 @@ .block_erase = erase_chip_block_jedec, } }, + .printlock = printlock_w39v040b, .write = write_jedec_1, .read = read_memmapped, },
{ .vendor = "Winbond", - .name = "W39V040(F)C", + .name = "W39V040C", .bustype = CHIP_BUSTYPE_LPC, .manufacture_id = WINBOND_ID, .model_id = WINBOND_W39V040C, @@ -7634,7 +7636,7 @@ .feature_bits = FEATURE_EITHER_RESET, .tested = TEST_UNTESTED, .probe = probe_jedec, - .probe_timing = TIMING_FIXME, + .probe_timing = 10, .block_erasers = { { @@ -7675,7 +7677,7 @@ .block_erase = erase_chip_block_jedec, } }, - .printlock = printlock_sst_fwhub, + .printlock = printlock_w39v040fa, .unlock = unlock_sst_fwhub, .write = write_jedec_1, .read = read_memmapped, @@ -7683,6 +7685,60 @@
{ .vendor = "Winbond", + .name = "W39V040FB", + .bustype = CHIP_BUSTYPE_FWH, + .manufacture_id = WINBOND_ID, + .model_id = WINBOND_W39V040B, + .total_size = 512, + .page_size = 64 * 1024, + .feature_bits = FEATURE_REGISTERMAP | FEATURE_EITHER_RESET, + .tested = TEST_OK_PRE, + .probe = probe_jedec, + .probe_timing = 10, + .block_erasers = + { + { + .eraseblocks = { {64 * 1024, 8} }, + .block_erase = erase_sector_jedec, + }, { + .eraseblocks = { {512 * 1024, 1} }, + .block_erase = erase_chip_block_jedec, + } + }, + .printlock = printlock_w39v040fb, + .write = write_jedec_1, + .read = read_memmapped, + }, + + { + .vendor = "Winbond", + .name = "W39V040FC", + .bustype = CHIP_BUSTYPE_FWH, + .manufacture_id = WINBOND_ID, + .model_id = WINBOND_W39V040C, + .total_size = 512, + .page_size = 64 * 1024, + .feature_bits = FEATURE_REGISTERMAP | FEATURE_EITHER_RESET, + .tested = TEST_UNTESTED, + .probe = probe_jedec, + .probe_timing = 10, + .block_erasers = + { + { + .eraseblocks = { {64 * 1024, 8} }, + .block_erase = erase_sector_jedec, + }, { + .eraseblocks = { {512 * 1024, 1} }, + .block_erase = erase_chip_block_jedec, + } + }, + .printlock = printlock_w39v040fc, + .write = write_jedec_1, + .read = read_memmapped, + }, + + { + .vendor = "Winbond", .name = "W39V080A", .bustype = CHIP_BUSTYPE_LPC, .manufacture_id = WINBOND_ID, @@ -7703,6 +7759,7 @@ .block_erase = erase_chip_block_jedec, } }, + .printlock = printlock_w39v080a, .write = write_jedec_1, .read = read_memmapped, }, @@ -7834,7 +7891,7 @@ .feature_bits = FEATURE_REGISTERMAP | FEATURE_EITHER_RESET, .tested = TEST_OK_PRE, .probe = probe_jedec, - .probe_timing = TIMING_FIXME, + .probe_timing = 10, .block_erasers = { { @@ -7845,7 +7902,8 @@ .block_erase = erase_chip_block_jedec, } }, - .unlock = unlock_winbond_fwhub, + .printlock = printlock_w39v080fa, + .unlock = unlock_w39v080fa, .write = write_jedec_1, .read = read_memmapped, }, @@ -7861,7 +7919,7 @@ .feature_bits = FEATURE_REGISTERMAP | FEATURE_EITHER_RESET, .tested = TEST_UNTESTED, .probe = probe_jedec, - .probe_timing = TIMING_FIXME, + .probe_timing = 10, .block_erasers = { { @@ -7872,7 +7930,7 @@ .block_erase = erase_chip_block_jedec, } }, - .unlock = unlock_winbond_fwhub, + .printlock = printlock_w39v080fa_dual, .write = write_jedec_1, .read = read_memmapped, },
Copied and modified: trunk/w39.c (from r1241, trunk/w39v080fa.c) ============================================================================== --- trunk/w39v080fa.c Fri Dec 3 15:48:11 2010 (r1241, copy source) +++ trunk/w39.c Sun Dec 5 17:33:59 2010 (r1245) @@ -2,6 +2,7 @@ * This file is part of the flashrom project. * * Copyright (C) 2008 coresystems GmbH + * Copyright (C) 2010 Carl-Daniel Hailfinger * * 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 @@ -21,58 +22,69 @@ #include "flash.h" #include "chipdrivers.h"
-static int unlock_block_winbond_fwhub(struct flashchip *flash, int offset) +static int printlock_w39_fwh_block(struct flashchip *flash, int offset) { chipaddr wrprotect = flash->virtual_registers + offset + 2; uint8_t locking;
- msg_cdbg("Trying to unlock block @0x%08x = 0x%02x\n", offset, - chip_readb(wrprotect)); - locking = chip_readb(wrprotect); + msg_cdbg("Lock status of block at 0x%08x is ", offset); switch (locking & 0x7) { case 0: msg_cdbg("Full Access.\n"); - return 0; + break; case 1: msg_cdbg("Write Lock (Default State).\n"); - chip_writeb(0, wrprotect); - return 0; + break; case 2: msg_cdbg("Locked Open (Full Access, Lock Down).\n"); - return 0; + break; case 3: msg_cerr("Error: Write Lock, Locked Down.\n"); - return -1; + break; case 4: msg_cdbg("Read Lock.\n"); - chip_writeb(0, wrprotect); - return 0; + break; case 5: msg_cdbg("Read/Write Lock.\n"); - chip_writeb(0, wrprotect); - return 0; + break; case 6: msg_cerr("Error: Read Lock, Locked Down.\n"); - return -1; + break; case 7: msg_cerr("Error: Read/Write Lock, Locked Down.\n"); - return -1; + break; }
- /* We will never reach this point, but GCC doesn't know */ - return -1; + /* Read or write lock present? */ + return (locking & ((1 << 2) | (1 << 0))) ? -1 : 0; }
-int unlock_winbond_fwhub(struct flashchip *flash) +static int unlock_w39_fwh_block(struct flashchip *flash, int offset) { - int i, total_size = flash->total_size * 1024; - chipaddr bios = flash->virtual_memory; + chipaddr wrprotect = flash->virtual_registers + offset + 2; uint8_t locking;
- /* Are there any hardware restrictions that we can't overcome? - * If flashrom fail here, someone's got to check all those GPIOs. - */ + locking = chip_readb(wrprotect); + /* Read or write lock present? */ + if (locking & ((1 << 2) | (1 << 0))) { + /* Lockdown active? */ + if (locking & (1 << 1)) { + msg_cerr("Can't unlock block at 0x%x!\n", offset); + return -1; + } else { + msg_cdbg("Unlocking block at 0x%x\n", offset); + chip_writeb(0, wrprotect); + } + } + + return 0; +} + +static uint8_t w39_idmode_readb(struct flashchip *flash, int offset) +{ + chipaddr bios = flash->virtual_memory; + uint8_t val;
/* Product Identification Entry */ chip_writeb(0xAA, bios + 0x5555); @@ -80,8 +92,8 @@ chip_writeb(0x90, bios + 0x5555); programmer_delay(10);
- /* Read Hardware Lock Bits */ - locking = chip_readb(bios + 0xffff2); + /* Read something, maybe hardware lock bits */ + val = chip_readb(bios + offset);
/* Product Identification Exit */ chip_writeb(0xAA, bios + 0x5555); @@ -89,25 +101,155 @@ chip_writeb(0xF0, bios + 0x5555); programmer_delay(10);
- msg_cdbg("Lockout bits:\n"); + return val; +}
- if (locking & (1 << 2)) - msg_cerr("Error: hardware bootblock locking (#TBL).\n"); - else - msg_cdbg("No hardware bootblock locking (good!)\n"); - - if (locking & (1 << 3)) - msg_cerr("Error: hardware block locking (#WP).\n"); - else - msg_cdbg("No hardware block locking (good!)\n"); +static int printlock_w39_tblwp(uint8_t lock) +{ + msg_cdbg("Hardware bootblock locking (#TBL) is %sactive.\n", + (lock & (1 << 2)) ? "" : "not "); + msg_cdbg("Hardware remaining chip locking (#WP) is %sactive..\n", + (lock & (1 << 3)) ? "" : "not "); + if (lock & ((1 << 2) | (1 << 3))) + return -1;
- if (locking & ((1 << 2) | (1 << 3))) + return 0; +} + +static int printlock_w39_bootblock_64k16k(uint8_t lock) +{ + msg_cdbg("Software 64 kB bootblock locking is %sactive.\n", + (lock & (1 << 0)) ? "" : "not "); + msg_cdbg("Software 16 kB bootblock locking is %sactive.\n", + (lock & (1 << 1)) ? "" : "not "); + if (lock & ((1 << 1) | (1 << 0))) return -1;
+ return 0; +} + +static int printlock_w39_common(struct flashchip *flash, int offset) +{ + uint8_t lock; + + lock = w39_idmode_readb(flash, offset); + msg_cdbg("Lockout bits:\n"); + return printlock_w39_tblwp(lock); +} + +static int printlock_w39_fwh(struct flashchip *flash) +{ + int i, total_size = flash->total_size * 1024; + int ret = 0; + + /* Print lock status of the complete chip */ + for (i = 0; i < total_size; i += flash->page_size) + ret |= printlock_w39_fwh_block(flash, i); + + return ret; +} + +static int unlock_w39_fwh(struct flashchip *flash) +{ + int i, total_size = flash->total_size * 1024; + /* Unlock the complete chip */ for (i = 0; i < total_size; i += flash->page_size) - if (unlock_block_winbond_fwhub(flash, i)) + if (unlock_w39_fwh_block(flash, i)) return -1;
return 0; } + +int printlock_w39v040a(struct flashchip *flash) +{ + uint8_t lock; + int ret = 0; + + /* The W39V040A datasheet contradicts itself on the lock register + * location: 0x00002 and 0x7fff2 are both mentioned. Pick the one + * which is similar to the other chips of the same family. + */ + lock = w39_idmode_readb(flash, 0x7fff2); + msg_cdbg("Lockout bits:\n"); + + ret = printlock_w39_tblwp(lock); + ret |= printlock_w39_bootblock_64k16k(lock); + + return ret; +} + +int printlock_w39v040b(struct flashchip *flash) +{ + return printlock_w39_common(flash, 0x7fff2); +} + +int printlock_w39v040c(struct flashchip *flash) +{ + /* Typo in the datasheet? The other chips use 0x7fff2. */ + return printlock_w39_common(flash, 0xfff2); +} + +int printlock_w39v040fa(struct flashchip *flash) +{ + int ret = 0; + + ret = printlock_w39v040a(flash); + ret |= printlock_w39_fwh(flash); + + return ret; +} + +int printlock_w39v040fb(struct flashchip *flash) +{ + int ret = 0; + + ret = printlock_w39v040b(flash); + ret |= printlock_w39_fwh(flash); + + return ret; +} + +int printlock_w39v040fc(struct flashchip *flash) +{ + int ret = 0; + + /* W39V040C and W39V040FC use different WP/TBL offsets. */ + ret = printlock_w39_common(flash, 0x7fff2); + ret |= printlock_w39_fwh(flash); + + return ret; +} + +int printlock_w39v080a(struct flashchip *flash) +{ + return printlock_w39_common(flash, 0xffff2); +} + +int printlock_w39v080fa(struct flashchip *flash) +{ + int ret = 0; + + ret = printlock_w39v080a(flash); + ret |= printlock_w39_fwh(flash); + + return ret; +} + +int printlock_w39v080fa_dual(struct flashchip *flash) +{ + msg_cinfo("Block locking for W39V080FA in dual mode is " + "undocumented.\n"); + /* Better safe than sorry. */ + return -1; +} + +int unlock_w39v080fa(struct flashchip *flash) +{ + if (unlock_w39_fwh(flash)) + return -1; + if (printlock_w39_common(flash, 0xffff2)) + return -1; + + return 0; +}