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The master cbfs record was located at the end of the flash and overwrote 

anything that was there.  For ck804 or mcp55-based machines that was the
romstrap.

The fix is simple:
1. Put the master cbfs record above the bootblock instead of on it.

Signed-off-by: Myles Watson <mylesgw@gmail.com>
Acked-by: Peter Stuge <peter@stuge.se>
Acked-by: Ronald G. Minnich <rminnich@gmail.com>


git-svn-id: svn://svn.coreboot.org/coreboot/trunk@4209 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
This commit is contained in:
Myles Watson 2009-04-25 12:39:04 +00:00
parent fe62016512
commit 72631a01fa
3 changed files with 15 additions and 41 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
util/cbfstool/cbfstool.h
View File

@ -58,7 +58,8 @@ struct rom {
/* util.c */
int open_rom(struct rom *rom, const char *filename);
int create_rom(struct rom *rom, const unsigned char *filename, int size,
int bootblocksize, int align);
const unsigned char *bootblockname, int bootblocksize,
int align);
int size_and_open(const char *filename, unsigned int *size);
int copy_from_fd(int fd, void *ptr, int size);
int get_size(const char *size);

5
util/cbfstool/create.c
View File

@ -59,11 +59,8 @@ int create_handler(struct rom *rom, int argc, char **argv)
return -1;
}
if (create_rom(rom, rom->name, size, bootblocksize, align))
if (create_rom(rom, rom->name, size, bootblock, bootblocksize, align))
return -1;
if (bootblock != NULL)
return add_bootblock(rom, bootblock);
return 0;
}

48
util/cbfstool/util.c
View File

@ -168,7 +168,8 @@ err:
}
int create_rom(struct rom *rom, const unsigned char *filename,
int romsize, int bootblocksize, int align)
int romsize, const unsigned char *bootblockname,
int bootblocksize, int align)
{
unsigned char null = '\0';
@ -180,8 +181,9 @@ int create_rom(struct rom *rom, const unsigned char *filename,
/* Remember the size of the entire ROM */
rom->size = romsize;
/* The size of the archive section is everything but the bootblock */
rom->fssize = romsize - bootblocksize;
/* The size of the archive section is everything but the bootblock and
* the cbfs master header. */
rom->fssize = romsize - bootblocksize - sizeof(struct cbfs_header);
/* Open the file descriptor */
@ -201,29 +203,27 @@ int create_rom(struct rom *rom, const unsigned char *filename,
return -1;
}
/* Clear the reset vector */
memset(rom->ptr + rom->size - 16, 0, 16);
ROM_WRITEL(rom, rom->size - 4,
0xFFFFFFF0 - sizeof(struct cbfs_header));
/* This is a pointer to the header for easy access */
rom->header = (struct cbfs_header *)
ROM_PTR(rom, rom->size - 16 - sizeof(struct cbfs_header));
ROM_PTR(rom, rom->size - 16 - bootblocksize - sizeof(struct cbfs_header));
rom->header->magic = htonl(HEADER_MAGIC);
rom->header->romsize = htonl(romsize);
rom->header->bootblocksize = htonl(bootblocksize);
rom->header->align = htonl(align);
rom->header->offset = htonl(0);
add_bootblock(rom, bootblockname);
/* Write the cbfs master header address at the end of the ROM. */
ROM_WRITEL(rom, rom->size - 4,
0xFFFFFFF0 - bootblocksize - sizeof(struct cbfs_header));
return 0;
}
int add_bootblock(struct rom *rom, const char *filename)
{
unsigned int size;
//unsigned int offset;
int fd = size_and_open(filename, &size);
int ret;
struct cbfs_header tmp;
@ -237,11 +237,7 @@ int add_bootblock(struct rom *rom, const char *filename)
return -1;
}
/* Copy the current header into a temporary buffer */
memcpy(&tmp, rom->header, sizeof(struct cbfs_header));
/* Copy the bootblock into place at the end of the file */
ret = copy_from_fd(fd, ROM_PTR(rom, rom->size - ntohl(rom->header->bootblocksize)), size);
close(fd);
@ -251,26 +247,6 @@ int add_bootblock(struct rom *rom, const char *filename)
return -1;
}
/* FIXME: This should point to a location defined by coreboot */
ROM_WRITEL(rom, rom->size - 4,
0xFFFFFFF0 - sizeof(struct cbfs_header));
/* This is a pointer to the header for easy access */
rom->header = (struct cbfs_header *)
ROM_PTR(rom, rom->size - 16 - sizeof(struct cbfs_header));
#if 0
/* Figure out the new location for the header */
offset = ROM_READL(rom, rom->size - 4);
rom->header = (struct cbfs_header *)
ROM_PTR(rom, offset - (0xFFFFFFFF - rom->size));
#endif
/* Replace the LAR header */
memcpy(rom->header, &tmp, sizeof(struct cbfs_header));
return 0;
}