diff options
Diffstat (limited to 'util/flashrom/flash_rom.c')
| -rw-r--r-- | util/flashrom/flash_rom.c | 69 |
1 files changed, 31 insertions, 38 deletions
diff --git a/util/flashrom/flash_rom.c b/util/flashrom/flash_rom.c index ba391cba90..60c33c0328 100644 --- a/util/flashrom/flash_rom.c +++ b/util/flashrom/flash_rom.c @@ -4,7 +4,7 @@ * Copyright 2000 Silicon Integrated System Corporation * Copyright 2004 Tyan Corp * yhlu yhlu@tyan.com add exclude start and end option - * Copyright 2005-2006 coresystems GmbH + * Copyright 2005-2007 coresystems GmbH * Stefan Reinauer <stepan@coresystems.de> added rom layout * support, and checking for suitable rom image, various fixes * support for flashing the Technologic Systems 5300. @@ -55,6 +55,8 @@ struct pci_access *pacc; /* For board and chipset_enable */ int exclude_start_page, exclude_end_page; int force=0, verbose=0; +int fd_mem; + /* * */ @@ -101,66 +103,53 @@ pci_card_find(uint16_t vendor, uint16_t device, struct flashchip *probe_flash(struct flashchip *flash) { - int fd_mem; volatile uint8_t *bios; - unsigned long size; - - if ((fd_mem = open(MEM_DEV, O_RDWR)) < 0) { - perror("Error: Can not access memory using " MEM_DEV ". You need to be root."); - exit(1); - } + unsigned long flash_baseaddr, size; while (flash->name != NULL) { if (chip_to_probe && strcmp(flash->name, chip_to_probe) != 0) { flash++; continue; } - printf_debug("Trying %s, %d KB\n", flash->name, flash->total_size); + printf_debug("Probing for %s, %d KB\n", + flash->name, flash->total_size); + size = flash->total_size * 1024; - /* BUG? what happens if getpagesize() > size!? - -> ``Error MMAP /dev/mem: Invalid argument'' NIKI */ + +#ifdef TS5300 + // FIXME: Wrong place for this decision + flash_baseaddr = 0x9400000; +#else + flash_baseaddr = (0xffffffff - size + 1); +#endif + + /* If getpagesize() > size -> + * `Error MMAP /dev/mem: Invalid argument' + * This should never happen as we don't support any flash chips + * smaller than 4k or 8k yet. + */ + if (getpagesize() > size) { size = getpagesize(); - printf("%s: warning: size: %d -> %ld\n", - __FUNCTION__, flash->total_size * 1024, - (unsigned long) size); + printf("WARNING: size: %d -> %ld (page size)\n", + flash->total_size * 1024, (unsigned long) size); } bios = mmap(0, size, PROT_WRITE | PROT_READ, MAP_SHARED, - fd_mem, (off_t) (0xffffffff - size + 1)); + fd_mem, (off_t)flash_baseaddr ); if (bios == MAP_FAILED) { perror("Error: Can't mmap " MEM_DEV "."); exit(1); } flash->virt_addr = bios; - flash->fd_mem = fd_mem; if (flash->probe(flash) == 1) { printf("%s found at physical address: 0x%lx\n", - flash->name, (0xffffffff - size + 1)); + flash->name, flash_baseaddr); return flash; } munmap((void *) bios, size); -#ifdef TS5300 - /* TS-5300 */ - bios = mmap(0, size, PROT_WRITE | PROT_READ, MAP_SHARED, - fd_mem, (off_t) (0x9400000)); - if (bios == MAP_FAILED) { - perror("Error: Can't mmap " MEM_DEV "."); - exit(1); - } - flash->virt_addr = bios; - flash->fd_mem = fd_mem; - if (flash->probe(flash) == 1) { - printf("TS-5300 %s found at physical address: 0x%lx\n", - flash->name, 0x9400000UL); - return flash; - } - munmap((void *) bios, size); - /* TS-5300 */ -#endif - flash++; } return NULL; @@ -351,9 +340,13 @@ int main(int argc, char *argv[]) pci_init(pacc); /* Initialize the PCI library */ pci_scan_bus(pacc); /* We want to get the list of devices */ - printf("Calibrating delay loop... "); + /* Open the memory device. A lot of functions need it */ + if ((fd_mem = open(MEM_DEV, O_RDWR)) < 0) { + perror("Error: Can not access memory using " MEM_DEV ". You need to be root."); + exit(1); + } + myusec_calibrate_delay(); - printf("ok\n"); /* We look at the lbtable first to see if we need a * mainboard specific flash enable sequence. |