diff options
| author | Maximilian Brune <maximilian.brune@9elements.com> | 2023-04-24 19:28:21 +0200 |
|---|---|---|
| committer | Martin L Roth <gaumless@gmail.com> | 2023-04-27 20:45:14 +0000 |
| commit | 2c895aaac366017bea3641b43cc5f71e5cc86609 (patch) | |
| tree | a653fcfbb69b2d8d278a2b6891ebd937f0dd52eb /util | |
| parent | 1f58b6a2a58a119c7073bb92c40d4ef98dc0efa9 (diff) | |
util/ifdtool/ifdtool.c: Fix default FMAP generation
According to SPI programming guide, a region limit of 0 as well as
region base of 7FFFh indicates an unused/reserved region.
Signed-off-by: Maximilian Brune <maximilian.brune@9elements.com>
Change-Id: I790d7f5631ecef3043b2c17c41430dc4fd854f72
Reviewed-on: https://review.coreboot.org/c/coreboot/+/74735
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Matt DeVillier <matt.devillier@gmail.com>
Diffstat (limited to 'util')
| -rw-r--r-- | util/ifdtool/ifdtool.c | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/util/ifdtool/ifdtool.c b/util/ifdtool/ifdtool.c index 625b4cf5ac..ada120b001 100644 --- a/util/ifdtool/ifdtool.c +++ b/util/ifdtool/ifdtool.c @@ -457,8 +457,11 @@ static void dump_flashrom_layout(char *image, int size, const char *layout_fname for (unsigned int i = 0; i < max_regions; i++) { struct region region = get_region(frba, i); - /* is region invalid? */ - if (region.size < 1) + + /* A region limit of 0 is an indicator of an unused region + * A region base of 7FFFh is an indicator of a reserved region + */ + if (region.limit == 0 || region.base == 0x07FFF000) continue; char buf[LAYOUT_LINELEN]; @@ -1027,8 +1030,11 @@ static void create_fmap_template(char *image, int size, const char *layout_fname struct region sorted_regions[MAX_REGIONS] = { 0 }; for (unsigned int i = 0; i < max_regions; i++) { struct region region = get_region(frba, i); - /* is region invalid? */ - if (region.size < 1) + + /* A region limit of 0 is an indicator of an unused region + * A region base of 7FFFh is an indicator of a reserved region + */ + if (region.limit == 0 || region.base == 0x07FFF000) continue; /* Here we decide to use the coreboot generated FMAP BIOS region, instead of |