From: Fabio Estevam <festevam@gmail.com>
Date: Wed, 11 Sep 2019 17:33:44 +0000 (-0300)
Subject: pico-imx6ul: Provide a way to escape the Falcon mode
X-Git-Tag: v2020.01-rc1~33^2~120
X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=f6432ecea666eb4b7cbe48bde804fb886f0a8cae;p=oweals%2Fu-boot.git

pico-imx6ul: Provide a way to escape the Falcon mode

When CONFIG_SPL_OS_BOOT is selected, it is still convenient to be able
to escape from Falcon mode and boot to U-Boot proper.

Add a mechanism that allows booting in U-Boot proper when the
key 'c' is entered on console at boot time.

Signed-off-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
---

diff --git a/board/technexion/pico-imx6ul/spl.c b/board/technexion/pico-imx6ul/spl.c
index 284aa40db6..7f520beeb0 100644
--- a/board/technexion/pico-imx6ul/spl.c
+++ b/board/technexion/pico-imx6ul/spl.c
@@ -19,6 +19,10 @@
 #ifdef CONFIG_SPL_OS_BOOT
 int spl_start_uboot(void)
 {
+	/* Break into full U-Boot on 'c' */
+	if (serial_tstc() && serial_getc() == 'c')
+		return 1;
+
 	return 0;
 }
 #endif