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authorAlexey Brodkin <Alexey.Brodkin@synopsys.com>2013-11-27 22:32:40 +0400
committerTom Rini <trini@ti.com>2013-12-13 09:17:32 -0500
commit9aed5a277738d7427b1949d75afbf95505c09499 (patch)
tree03452bd830f0834655d8cf1d25e5878ba67ccbd1
parent07a1a0c93161733ff4473ebb7d642eb8b68d974e (diff)
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board_f: explicitly disable console on early boot
If U-Boot build with DEBUG enabled/defined the first call of "debug" function (that dumps data to any available console) will happen before zeroing of initial "gd" in init call "zero_global_data" in "init_sequence_f". And if stack was not filled with zeros chances are high that "gd->have_console" won't be 0. In its turn it will cause attempt to output things to non-initialized yet serial console. So for safety and predictability we set "gd->have_console = 0". Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com> Cc: Mischa Jonker <mjonker@synopsys.com> Cc: Wolfgang Denk <wd@denx.de> Cc: Simon Glass <sjg@chromium.org> Acked-by: Simon Glass <sjg@chromium.org>
-rw-r--r--common/board_f.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/common/board_f.c b/common/board_f.c
index f0664bc..fcfd713 100644
--- a/common/board_f.c
+++ b/common/board_f.c
@@ -1010,6 +1010,7 @@ void board_init_f(ulong boot_flags)
#endif
gd->flags = boot_flags;
+ gd->have_console = 0;
if (initcall_run_list(init_sequence_f))
hang();