The debug UART is intended for use very early in U-Boot to debug problems before serial drivers are up.
Call debug_uart_init right before board_init_f.
Signed-off-by: Eugeniy Paltsev Eugeniy.Paltsev@synopsys.com --- arch/arc/lib/start.S | 5 +++++ 1 file changed, 5 insertions(+)
diff --git a/arch/arc/lib/start.S b/arch/arc/lib/start.S index c78dd001d81..cb8ea0fd363 100644 --- a/arch/arc/lib/start.S +++ b/arch/arc/lib/start.S @@ -76,6 +76,11 @@ ENTRY(_start) /* Initialize reserved area - note: r0 already contains address */ bl board_init_f_init_reserve
+#ifdef CONFIG_DEBUG_UART + /* Earliest point to set up early debug uart */ + bl debug_uart_init +#endif + /* Zero the one and only argument of "board_init_f" */ mov_s %r0, 0 bl board_init_f