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| author | Simon Glass <sjg@chromium.org> | 2018-11-15 18:43:58 -0700 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2018-11-26 08:25:34 -0500 |
| commit | c21f407bf01cf497fd03fe404c1f06bdb36c88f9 (patch) | |
| tree | ae4b9a166a0bfb21272d581bcd227b578b37c5d8 /common | |
| parent | aedc08b297b1682ac12acb81d0867606f422a15c (diff) | |
| download | u-boot-c21f407bf01cf497fd03fe404c1f06bdb36c88f9.tar.gz u-boot-c21f407bf01cf497fd03fe404c1f06bdb36c88f9.tar.xz u-boot-c21f407bf01cf497fd03fe404c1f06bdb36c88f9.zip | |
spl: Add a comment to spl_set_bd()
There is a strange feature to set global_data to a data-section variable
early in SPL. This only works if SPL actually has access to SRAM which is
not the case on x86, for eaxmple. Add a comment to this effect.
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'common')
| -rw-r--r-- | common/spl/spl.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/common/spl/spl.c b/common/spl/spl.c index 5a026b844e..43137105ba 100644 --- a/common/spl/spl.c +++ b/common/spl/spl.c @@ -378,6 +378,10 @@ static int spl_common_init(bool setup_malloc) void spl_set_bd(void) { + /* + * NOTE: On some platforms (e.g. x86) bdata may be in flash and not + * writeable. + */ if (!gd->bd) gd->bd = &bdata; } |