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 <c-d.hailfinger.devel.2006(a)gmx.net>
Acked-by: Uwe Hermann <uwe(a)hermann-uwe.de>
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 <yhlu(a)tyan.com>
* 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 +