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 --- common/board_f.c | 1 + 1 file changed, 1 insertion(+)
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();