rpi3: enable uart in bootcode.bin

The uart_2ndstage option directs bootcode.bin to print some diagnostics,
that indicate the code is running.

Change-Id: I34a68ae3b5c2467ee58fd81adf687ce367e1ed1c
Signed-off-by: Łukasz Stelmach <l.stelmach@samsung.com>

diff --git a/rpi3/boot/config.txt b/rpi3/boot/config.txt
index 05dda28..325d8ac 100644 (file)
--- a/rpi3/boot/config.txt
+++ b/rpi3/boot/config.txt
@@ -57,6 +57,7 @@ dtparam=audio=on
 
 # Enable serial
 enable_uart=1
+uart_2ndstage=1
 
 # Bit 9 of arm_control determines if arm is booted in 32-bit mode or 64-bit mode
 #arm_control=0x0       # for 32-bit