Author: hailfinger Date: 2009-05-08 14:49:03 +0200 (Fri, 08 May 2009) New Revision: 473
Modified: trunk/flash.h trunk/flashchips.c trunk/flashrom.c Log: Flashrom assumes that the flash chip contents are available via mmap if no read function is defined. This special case is handled in lots of places all over the code. Remove the special case and use the read_memmapped function. Not only does this allow us to fix a read bug in flashrom I recently uncovered on ICH SPI, it also allows us to add support for Paraflasher to flashrom. Signed-off-by: Carl-Daniel Hailfinger <[email protected]> Acked-by: Uwe Hermann <[email protected]> Modified: trunk/flash.h =================================================================== --- trunk/flash.h 2009-05-07 13:24:49 UTC (rev 472) +++ trunk/flash.h 2009-05-08 12:49:03 UTC (rev 473) @@ -539,6 +539,7 @@ extern int verbose; #define printf_debug(x...) { if (verbose) printf(x); } void map_flash_registers(struct flashchip *flash); +int read_memmapped(struct flashchip *flash, uint8_t *buf); /* layout.c */ int show_id(uint8_t *bios, int size, int force); Modified: trunk/flashchips.c =================================================================== --- trunk/flashchips.c 2009-05-07 13:24:49 UTC (rev 472) +++ trunk/flashchips.c 2009-05-08 12:49:03 UTC (rev 473) @@ -48,6 +48,7 @@ .probe = probe_jedec, .erase = erase_chip_jedec, .write = write_en29f002a, + .read = read_memmapped, }, { @@ -61,6 +62,7 @@ .probe = probe_jedec, .erase = erase_chip_jedec, .write = write_en29f002a, + .read = read_memmapped, }, { @@ -74,6 +76,7 @@ .probe = probe_29f040b, .erase = erase_29f040b, .write = write_29f040b, + .read = read_memmapped, }, { @@ -87,6 +90,7 @@ .probe = probe_29f040b, .erase = erase_29f040b, .write = write_29f040b, + .read = read_memmapped, }, { @@ -100,6 +104,7 @@ .probe = probe_jedec, .erase = erase_29f040b, .write = write_29f040b, + .read = read_memmapped, }, { @@ -113,6 +118,7 @@ .probe = probe_29f040b, .erase = erase_29f040b, .write = write_29f040b, + .read = read_memmapped, }, { @@ -126,6 +132,7 @@ .probe = probe_29f040b, .erase = erase_29f040b, .write = write_29f040b, + .read = read_memmapped, }, { @@ -139,6 +146,7 @@ .probe = probe_jedec, .erase = erase_chip_jedec, .write = write_jedec, + .read = read_memmapped, }, { @@ -377,6 +385,7 @@ .probe = probe_jedec, .erase = erase_chip_jedec, .write = write_jedec, + .read = read_memmapped, }, { @@ -390,6 +399,7 @@ .probe = probe_jedec, .erase = erase_chip_jedec, .write = write_jedec, + .read = read_memmapped, }, { @@ -529,6 +539,7 @@ .probe = probe_jedec, .erase = erase_chip_jedec, .write = write_49f002, + .read = read_memmapped, }, { @@ -542,6 +553,7 @@ .probe = probe_jedec, .erase = erase_chip_jedec, .write = write_49f002, + .read = read_memmapped, }, { @@ -569,6 +581,7 @@ .probe = probe_29f002, .erase = erase_29f002, .write = write_29f002, + .read = read_memmapped, }, { @@ -582,6 +595,7 @@ .probe = probe_29f002, .erase = erase_29f002, .write = write_29f002, + .read = read_memmapped, }, { @@ -595,6 +609,7 @@ .probe = probe_29f040b, .erase = erase_29f040b, .write = write_29f040b, + .read = read_memmapped, }, { @@ -608,6 +623,7 @@ .probe = probe_49fl00x, .erase = erase_49fl00x, .write = write_49fl00x, + .read = read_memmapped, }, { @@ -621,6 +637,7 @@ .probe = probe_jedec, .erase = erase_chip_jedec, .write = write_49f002, + .read = read_memmapped, }, { @@ -634,6 +651,7 @@ .probe = probe_jedec, .erase = erase_chip_jedec, .write = write_en29f002a, + .read = read_memmapped, }, { @@ -647,6 +665,7 @@ .probe = probe_jedec, .erase = erase_chip_jedec, .write = write_en29f002a, + .read = read_memmapped, }, { @@ -660,6 +679,7 @@ .probe = probe_jedec, .erase = NULL, .write = NULL, + .read = read_memmapped, }, { @@ -673,6 +693,7 @@ .probe = probe_jedec, .erase = NULL, .write = NULL, + .read = read_memmapped, }, { @@ -686,6 +707,7 @@ .probe = probe_m29f400bt, .erase = erase_m29f400bt, .write = write_coreboot_m29f400bt, + .read = read_memmapped, }, { @@ -699,6 +721,7 @@ .probe = probe_m29f400bt, .erase = erase_m29f400bt, .write = write_coreboot_m29f400bt, + .read = read_memmapped, }, { @@ -712,6 +735,7 @@ .probe = probe_82802ab, .erase = erase_82802ab, .write = write_82802ab, + .read = read_memmapped, }, { @@ -725,6 +749,7 @@ .probe = probe_82802ab, .erase = erase_82802ab, .write = write_82802ab, + .read = read_memmapped, }, { @@ -892,6 +917,7 @@ .probe = probe_29f002, .erase = erase_29f002, .write = write_29f002, + .read = read_memmapped, }, { @@ -905,6 +931,7 @@ .probe = probe_29f002, .erase = erase_29f002, .write = write_29f002, + .read = read_memmapped, }, { @@ -918,6 +945,7 @@ .probe = probe_29f002, .erase = erase_29f002, .write = write_29f002, + .read = read_memmapped, }, { @@ -1085,6 +1113,7 @@ .probe = probe_49fl00x, .erase = erase_49fl00x, .write = write_49fl00x, + .read = read_memmapped, }, { @@ -1098,6 +1127,7 @@ .probe = probe_49fl00x, .erase = erase_49fl00x, .write = write_49fl00x, + .read = read_memmapped, }, { @@ -1111,6 +1141,7 @@ .probe = probe_lhf00l04, .erase = erase_lhf00l04, .write = write_lhf00l04, + .read = read_memmapped, }, { @@ -1222,6 +1253,7 @@ .probe = probe_28sf040, .erase = erase_28sf040, .write = write_28sf040, + .read = read_memmapped, }, { @@ -1235,6 +1267,7 @@ .probe = probe_jedec, .erase = erase_chip_jedec, .write = write_jedec, + .read = read_memmapped, }, { @@ -1248,6 +1281,7 @@ .probe = probe_jedec, .erase = erase_chip_jedec, .write = write_jedec, + .read = read_memmapped, }, { @@ -1261,6 +1295,7 @@ .probe = probe_jedec, .erase = erase_chip_jedec, .write = write_jedec, + .read = read_memmapped, }, { @@ -1274,6 +1309,7 @@ .probe = probe_jedec, .erase = erase_chip_jedec, .write = write_jedec, + .read = read_memmapped, }, { @@ -1287,6 +1323,7 @@ .probe = probe_jedec, .erase = erase_chip_jedec, .write = write_39sf020, + .read = read_memmapped, }, { @@ -1300,6 +1337,7 @@ .probe = probe_jedec, .erase = erase_chip_jedec, .write = write_39sf020, + .read = read_memmapped, }, { @@ -1313,6 +1351,7 @@ .probe = probe_jedec, .erase = erase_chip_jedec, .write = write_39sf020, + .read = read_memmapped, }, { @@ -1326,6 +1365,7 @@ .probe = probe_jedec, .erase = erase_chip_jedec, .write = write_39sf020, + .read = read_memmapped, }, { @@ -1339,6 +1379,7 @@ .probe = probe_jedec, .erase = erase_chip_jedec, .write = write_39sf020, + .read = read_memmapped, }, { @@ -1352,6 +1393,7 @@ .probe = probe_jedec, .erase = erase_chip_jedec, .write = write_39sf020, + .read = read_memmapped, }, { @@ -1365,6 +1407,7 @@ .probe = probe_jedec, .erase = erase_chip_jedec, .write = write_39sf020, + .read = read_memmapped, }, { @@ -1378,6 +1421,7 @@ .probe = probe_jedec, .erase = erase_chip_jedec, .write = write_39sf020, + .read = read_memmapped, }, { @@ -1391,6 +1435,7 @@ .probe = probe_sst_fwhub, .erase = erase_sst_fwhub, .write = write_sst_fwhub, + .read = read_memmapped, }, { @@ -1404,6 +1449,7 @@ .probe = probe_sst_fwhub, .erase = erase_sst_fwhub, .write = write_sst_fwhub, + .read = read_memmapped, }, { @@ -1417,6 +1463,7 @@ .probe = probe_sst_fwhub, .erase = erase_sst_fwhub, .write = write_sst_fwhub, + .read = read_memmapped, }, { @@ -1430,6 +1477,7 @@ .probe = probe_49lfxxxc, .erase = erase_49lfxxxc, .write = write_49lfxxxc, + .read = read_memmapped, }, { @@ -1443,6 +1491,7 @@ .probe = probe_sst_fwhub, .erase = erase_sst_fwhub, .write = write_sst_fwhub, + .read = read_memmapped, }, { @@ -1456,6 +1505,7 @@ .probe = probe_49lfxxxc, .erase = erase_49lfxxxc, .write = write_49lfxxxc, + .read = read_memmapped, }, { @@ -1469,6 +1519,7 @@ .probe = probe_49lfxxxc, .erase = erase_49lfxxxc, .write = write_49lfxxxc, + .read = read_memmapped, }, { @@ -1482,6 +1533,7 @@ .probe = probe_jedec, .erase = erase_49lf040, .write = write_49lf040, + .read = read_memmapped, }, { @@ -1495,6 +1547,7 @@ .probe = probe_jedec, .erase = erase_49lf040, .write = write_49lf040, + .read = read_memmapped, }, { @@ -1508,6 +1561,7 @@ .probe = probe_jedec, .erase = erase_49lf040, .write = write_49lf040, + .read = read_memmapped, }, { @@ -1521,6 +1575,7 @@ .probe = probe_sst_fwhub, .erase = erase_sst_fwhub, .write = write_sst_fwhub, + .read = read_memmapped, }, { @@ -1534,6 +1589,7 @@ .probe = probe_jedec, .erase = erase_49lf040, .write = write_49lf040, + .read = read_memmapped, }, { @@ -1547,6 +1603,7 @@ .probe = probe_49lfxxxc, .erase = erase_49lfxxxc, .write = write_49lfxxxc, + .read = read_memmapped, }, { @@ -1700,6 +1757,7 @@ .probe = probe_jedec, .erase = erase_m29f002, .write = write_m29f002b, + .read = read_memmapped, }, { @@ -1713,6 +1771,7 @@ .probe = probe_jedec, .erase = erase_m29f002, .write = write_m29f002t, + .read = read_memmapped, }, { @@ -1726,6 +1785,7 @@ .probe = probe_29f040b, .erase = erase_29f040b, .write = write_29f040b, + .read = read_memmapped, }, { @@ -1739,6 +1799,7 @@ .probe = probe_m29f400bt, .erase = erase_m29f400bt, .write = write_coreboot_m29f400bt, + .read = read_memmapped, }, { @@ -1752,6 +1813,7 @@ .probe = probe_jedec, .erase = erase_chip_jedec, .write = write_jedec, + .read = read_memmapped, }, { @@ -1765,6 +1827,7 @@ .probe = probe_jedec, .erase = erase_chip_jedec, .write = write_jedec, + .read = read_memmapped, }, { @@ -1778,6 +1841,7 @@ .probe = probe_stm50flw0x0x, .erase = erase_stm50flw0x0x, .write = write_stm50flw0x0x, + .read = read_memmapped, }, { @@ -1791,6 +1855,7 @@ .probe = probe_stm50flw0x0x, .erase = erase_stm50flw0x0x, .write = write_stm50flw0x0x, + .read = read_memmapped, }, { @@ -1804,6 +1869,7 @@ .probe = probe_stm50flw0x0x, .erase = erase_stm50flw0x0x, .write = write_stm50flw0x0x, + .read = read_memmapped, }, { @@ -1817,6 +1883,7 @@ .probe = probe_stm50flw0x0x, .erase = erase_stm50flw0x0x, .write = write_stm50flw0x0x, + .read = read_memmapped, }, { @@ -1830,6 +1897,7 @@ .probe = probe_49lfxxxc, .erase = NULL, .write = NULL, + .read = read_memmapped, }, { @@ -1843,6 +1911,7 @@ .probe = probe_82802ab, .erase = erase_82802ab, .write = write_82802ab, + .read = read_memmapped, }, { @@ -1856,6 +1925,7 @@ .probe = probe_82802ab, .erase = erase_82802ab, .write = write_82802ab, + .read = read_memmapped, }, { @@ -1869,6 +1939,7 @@ .probe = probe_82802ab, .erase = erase_82802ab, .write = write_82802ab, + .read = read_memmapped, }, { @@ -1882,6 +1953,7 @@ .probe = probe_jedec, .erase = erase_chip_jedec, .write = write_jedec, + .read = read_memmapped, }, { @@ -1895,6 +1967,7 @@ .probe = probe_jedec, .erase = erase_chip_jedec, .write = write_49f002, + .read = read_memmapped, }, { @@ -1908,6 +1981,7 @@ .probe = probe_jedec, .erase = erase_chip_jedec, .write = write_49f002, + .read = read_memmapped, }, { @@ -1921,6 +1995,7 @@ .probe = probe_jedec, .erase = erase_chip_jedec, .write = write_49f002, + .read = read_memmapped, }, { @@ -1934,6 +2009,7 @@ .probe = probe_jedec, .erase = erase_chip_jedec, .write = write_49f002, + .read = read_memmapped, }, { @@ -2003,6 +2079,7 @@ .probe = probe_jedec, .erase = erase_chip_jedec, .write = write_jedec, + .read = read_memmapped, }, { @@ -2016,6 +2093,7 @@ .probe = probe_jedec, .erase = erase_chip_jedec, .write = write_jedec, + .read = read_memmapped, }, { @@ -2029,6 +2107,7 @@ .probe = probe_jedec, .erase = erase_chip_jedec, .write = write_jedec, + .read = read_memmapped, }, { @@ -2042,6 +2121,7 @@ .probe = probe_w29ee011, .erase = erase_chip_jedec, .write = write_jedec, + .read = read_memmapped, }, { @@ -2055,6 +2135,7 @@ .probe = probe_jedec, .erase = erase_chip_jedec, .write = write_39sf020, + .read = read_memmapped, }, { @@ -2068,6 +2149,7 @@ .probe = probe_jedec, .erase = erase_chip_jedec, .write = write_39sf020, + .read = read_memmapped, }, { @@ -2081,6 +2163,7 @@ .probe = probe_w39v040c, .erase = erase_w39v040c, .write = write_w39v040c, + .read = read_memmapped, }, { @@ -2094,6 +2177,7 @@ .probe = probe_jedec, .erase = erase_chip_jedec, .write = write_39sf020, + .read = read_memmapped, }, { @@ -2107,6 +2191,7 @@ .probe = probe_jedec, .erase = erase_chip_jedec, .write = write_39sf020, + .read = read_memmapped, }, { @@ -2120,6 +2205,7 @@ .probe = probe_jedec, .erase = erase_chip_jedec, .write = write_49f002, + .read = read_memmapped, }, { @@ -2133,6 +2219,7 @@ .probe = probe_jedec, .erase = erase_chip_jedec, .write = write_49f002, + .read = read_memmapped, }, { @@ -2146,6 +2233,7 @@ .probe = probe_jedec, .erase = erase_chip_jedec, .write = write_49f002, + .read = read_memmapped, }, { @@ -2159,6 +2247,7 @@ .probe = probe_winbond_fwhub, .erase = erase_winbond_fwhub, .write = write_winbond_fwhub, + .read = read_memmapped, }, { @@ -2172,6 +2261,7 @@ .probe = probe_winbond_fwhub, .erase = erase_winbond_fwhub, .write = write_winbond_fwhub, + .read = read_memmapped, }, { @@ -2185,6 +2275,7 @@ .probe = probe_spi_rdid, .erase = NULL, .write = NULL, + .read = NULL, }, { @@ -2198,6 +2289,7 @@ .probe = probe_spi_rdid, .erase = NULL, .write = NULL, + .read = NULL, }, { @@ -2211,6 +2303,7 @@ .probe = probe_spi_rdid, .erase = NULL, .write = NULL, + .read = NULL, }, { @@ -2224,6 +2317,7 @@ .probe = probe_spi_rdid, .erase = NULL, .write = NULL, + .read = NULL, }, { @@ -2237,6 +2331,7 @@ .probe = probe_spi_rdid, .erase = NULL, .write = NULL, + .read = NULL, }, { @@ -2250,6 +2345,7 @@ .probe = probe_spi_rdid, .erase = NULL, .write = NULL, + .read = NULL, }, { NULL } Modified: trunk/flashrom.c =================================================================== --- trunk/flashrom.c 2009-05-07 13:24:49 UTC (rev 472) +++ trunk/flashrom.c 2009-05-08 12:49:03 UTC (rev 473) @@ -4,6 +4,7 @@ * Copyright (C) 2000 Silicon Integrated System Corporation * Copyright (C) 2004 Tyan Corp <[email protected]> * Copyright (C) 2005-2008 coresystems GmbH + * Copyright (C) 2008,2009 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 @@ -81,6 +82,18 @@ flash->virtual_registers = physmap("flash chip registers", (0xFFFFFFFF - 0x400000 - size + 1), size); } +int read_memmapped(struct flashchip *flash, uint8_t *buf) +{ + int i; + + /* We could do a memcpy as optimization if the flash is onboard */ + //memcpy(buf, (const char *)flash->virtual_memory, flash->total_size * 1024); + for (i = 0; i < flash->total_size * 1024; i++) + buf[i] = chip_readb(flash->virtual_memory + i); + + return 0; +} + struct flashchip *probe_flash(struct flashchip *first_flash, int force) { volatile uint8_t *bios; @@ -145,9 +158,11 @@ int idx; int total_size = flash->total_size * 1024; uint8_t *buf2 = (uint8_t *) calloc(total_size, sizeof(char)); - if (flash->read == NULL) - memcpy(buf2, (const char *)flash->virtual_memory, total_size); - else + if (!flash->read) { + printf("FAILED!\n"); + fprintf(stderr, "ERROR: flashrom has no read function for this flash chip.\n"); + return 1; + } else flash->read(flash, buf2); printf("Verifying flash... "); @@ -191,9 +206,11 @@ exit(1); } printf("Reading flash... "); - if (flash->read == NULL) - memcpy(buf, (const char *)flash->virtual_memory, size); - else + if (!flash->read) { + printf("FAILED!\n"); + fprintf(stderr, "ERROR: flashrom has no read function for this flash chip.\n"); + return 1; + } else flash->read(flash, buf); if (exclude_end_position - exclude_start_position > 0) @@ -219,11 +236,13 @@ fprintf(stderr, "ERROR: flashrom has no erase function for this flash chip.\n"); return 1; } - flash->erase(flash); - if (NULL == flash->read) - memcpy(buf, (const char *)flash->virtual_memory, size); - else + if (!flash->read) { + printf("FAILED!\n"); + fprintf(stderr, "ERROR: flashrom has no read function for this flash chip.\n"); + return 1; + } else flash->read(flash, buf); + for (erasedbytes = 0; erasedbytes < size; erasedbytes++) if (0xff != buf[erasedbytes]) { printf("FAILED!\n"); @@ -537,9 +556,11 @@ exit(1); } printf("Force reading flash... "); - if (!flashes[0]->read) - memcpy(buf, (const char *)flashes[0]->virtual_memory, size); - else + if (!flashes[0]->read) { + printf("FAILED!\n"); + fprintf(stderr, "ERROR: flashrom has no read function for this flash chip.\n"); + return 1; + } else flashes[0]->read(flashes[0], buf); if (exclude_end_position - exclude_start_position > 0) @@ -648,6 +669,9 @@ */ // //////////////////////////////////////////////////////////// + /* FIXME: This memcpy will not work for SPI nor external flashers. + * Convert to chip_readb. + */ if (exclude_end_position - exclude_start_position > 0) memcpy(buf + exclude_start_position, (const char *)flash->virtual_memory + -- coreboot mailing list: [email protected] http://www.coreboot.org/mailman/listinfo/coreboot
