commit 3cb058dc79d3c9525989f178f4f628005eecaced
author Fabio Estevam <festevam@denx.de> Mon Sep 19 21:20:14 2022 -0300
committer Stefano Babic <sbabic@denx.de> Fri Oct 21 11:54:13 2022 +0200
tree 817c45c9583105e3a7c15373ca870601605c5bf6
parent e2b3a7bd04386032885c302bdaea902f88d84bac

imx8mm_evk: Add Serial Download Protocol support

Add Serial Download Protocol support as it is a useful method to
load flash.bin to RAM and run it via 'uuu'.

With this patch, it is possible to start both U-Boot SPL and U-Boot
proper using the following 'uuu'command:

$ uuu -brun spl flash.bin

Based on a patch from Marek Vasut for the imx8mm-mx8menlo board.

Also, to fit the SPL binary into the internal RAM, select CONFIG_LTO
to reduce its size.

Signed-off-by: Fabio Estevam <festevam@denx.de>
Reviewed-by: Peng Fan <peng.fan@nxp.com>

arch/arm/dts/imx8mm-evk-u-boot.dtsi

diff --git a/arch/arm/dts/imx8mm-evk-u-boot.dtsi b/arch/arm/dts/imx8mm-evk-u-boot.dtsi
index 36fbf56..d82428f 100644
--- a/arch/arm/dts/imx8mm-evk-u-boot.dtsi
+++ b/arch/arm/dts/imx8mm-evk-u-boot.dtsi
@@ -20,6 +20,10 @@
 	};
 };
 
+&aips4 {
+	u-boot,dm-spl;
+};
+
 &reg_usdhc2_vmmc {
 	u-boot,off-on-delay-us = <20000>;
 };
@@ -84,6 +88,18 @@
 	u-boot,dm-spl;
 };
 
+&usbmisc1 {
+	u-boot,dm-spl;
+};
+
+&usbphynop1 {
+	u-boot,dm-spl;
+};
+
+&usbotg1 {
+	u-boot,dm-spl;
+};
+
 &usdhc1 {
 	u-boot,dm-spl;
 };