From 8b6acd8207400e7b130a4b1645df5c60a44b7c8b Mon Sep 17 00:00:00 2001
From: Daniel Moran <dijumx@gmail.com>
Date: Thu, 27 Jun 2019 21:39:49 +0100
Subject: [PATCH] Enable the bootloader UART

---
 raspi0w.yaml | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/raspi0w.yaml b/raspi0w.yaml
index 8179da3..e69cb85 100644
--- a/raspi0w.yaml
+++ b/raspi0w.yaml
@@ -132,10 +132,14 @@ steps:
 
   # Modify the kernel commandline we take from the firmware to boot from
   # the partition labeled raspiroot instead of forcing it to mmcblk0p2
+  #
+  # Enable UART in the boot loader to debug
+  #
   - chroot: /
     shell: |
       ls -aR /boot
       sed -i 's/.dev.mmcblk0p2/LABEL=RASPIROOT/' /boot/firmware/cmdline.txt
+      sed -i 's/BOOT_UART=0/BOOT_UART=1/' /boot/firmware/bootcode.bin
 
   # TODO(https://github.com/larswirzenius/vmdb2/issues/24): remove once vmdb
   # clears /etc/resolv.conf on its own.