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* [DistroKit] [PATCH] platform-rpi: Enable early debug UART
@ 2018-11-19 19:41 Chris Fiege
  2018-11-28  7:38 ` Robert Schwebel
  0 siblings, 1 reply; 2+ messages in thread
From: Chris Fiege @ 2018-11-19 19:41 UTC (permalink / raw)
  To: distrokit; +Cc: Chris Fiege

This config enables the early debug for the Raspberry-Pi Firmware
bootloader.

This makes sure that the UART is available to barebox even if the
used board has additional hardware (like Bluetooth) connected to the
UART.

This command only works if the firmware is loaded from the SD-Card.

See for more information:
https://github.com/raspberrypi/firmware/wiki/USB-MSD-and-network-boot-debugging

Signed-off-by: Chris Fiege <chris@tinyhost.de>
---
 configs/platform-rpi/firmware/config.txt | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/configs/platform-rpi/firmware/config.txt b/configs/platform-rpi/firmware/config.txt
index 956ad81..d1abb30 100644
--- a/configs/platform-rpi/firmware/config.txt
+++ b/configs/platform-rpi/firmware/config.txt
@@ -1,3 +1,5 @@
+# enable debug of early bootloader
+uart_2ndstage=1
 # Set barebox as third state bootloader
 kernel=barebox
 # Set stdv mode to PAL (as used in Europe)
-- 
2.7.4


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2018-11-19 19:41 [DistroKit] [PATCH] platform-rpi: Enable early debug UART Chris Fiege
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