u-boot: we need to load uboot-env.txt

Signed-off-by: Robert Nelson <robertcnelson@gmail.com>

01_git_sync.sh

@@ -51,4 +51,15 @@ fi
 echo "git clone -b ${LINUX_BRANCH} ${LINUX_REPO} ./linux/ --depth=${GIT_DEPTH}"
 git clone -b ${LINUX_BRANCH} ${LINUX_REPO} ./linux/ --depth=${GIT_DEPTH}
 
+
+#BUILDROOT_BRANCH="bvf"
+#BUILDROOT_REPO="https://git.beagleboard.org/beaglev-fire/buildroot-external-microchip.git"
+#
+#if [ -d ./buildroot ] ; then
+	#rm -rf ./buildroot || true
+#fi
+#
+#echo "git clone -b ${BUILDROOT_BRANCH} ${BUILDROOT_REPO} ./buildroot/ --depth=${GIT_DEPTH}"
+#git clone -b ${BUILDROOT_BRANCH} ${BUILDROOT_REPO} ./buildroot/ --depth=${GIT_DEPTH}
+
 #

04_build_linux.sh

@@ -272,4 +272,10 @@ cp -v ./arch/riscv/boot/dts/microchip/mpfs-beaglev-fire.dtb ../deploy/input/
 
 cd ../
 
+cp -v ./patches/linux/beaglev_fire.its ./deploy/input/
+cd ./deploy/input/
+gzip -9 Image -c > Image.gz
+if [ -f ../../u-boot/tools/mkimage ] ; then
+	../../u-boot/tools/mkimage -f beaglev_fire.its beaglev_fire.itb
+fi
 #

deploy/genimage.cfg

@@ -3,6 +3,7 @@
 image boot.vfat {
 	vfat {
 		files = {
+			"beaglev_fire.itb",
 			"mpfs-beaglev-fire.dtb",
 			"Image"
 		}

patches/linux/beaglev_fire.its

@@ -0,0 +1,56 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Flattened Image Tree file for BVF
+ *
+ * Copyright (C) 2022 Microchip Technology Inc. and its subsidiaries.
+ * Author: Conor Dooley <conor.dooley@microchip.com>
+ *
+ */
+
+/dts-v1/;
+
+/ {
+	description = "U-Boot fitImage for the BeagleV-Fire";
+	#address-cells = <2>;
+
+		images {
+			kernel {
+				description = "Linux kernel";
+				data = /incbin/("./Image.gz");
+				type = "kernel";
+				arch = "riscv";
+				os = "linux";
+				compression = "gzip";
+				load = <0x80200000>;
+				entry = <0x80200000>;
+				hash-1 {
+					algo = "sha256";
+				};
+			};
+			base_fdt {
+				description = "Flattened Device Tree blob";
+				data = /incbin/("./mpfs-beaglev-fire.dtb");
+				type = "flat_dt";
+				arch = "riscv";
+				compression = "none";
+				load = <0x8a000000>;
+				hash-1 {
+					algo = "sha256";
+				};
+			};
+		};
+
+		configurations {
+			default = "kernel_dtb";
+			kernel_dtb {
+				description = "1 Linux kernel, FDT blob";
+				kernel = "kernel";
+				fdt = "base_fdt";
+			};
+
+			base_dtb {
+				description = "Base FDT blob for BeagleV-Fire board";
+				fdt = "base_fdt";
+			};
+		};
+};

patches/u-boot/uboot-env.txt

@@ -0,0 +1,17 @@
+# this assumes ${scriptaddr} is already set!!
+
+# Try to boot a fitImage from eMMC/SD
+
+setenv fdt_high 0xffffffffffffffff
+setenv initrd_high 0xffffffffffffffff
+
+load mmc 0:${distro_bootpart} ${scriptaddr} beaglev_fire.itb;
+bootm start ${scriptaddr}#kernel_dtb;
+bootm loados ${scriptaddr};
+# Try to load a ramdisk if available inside fitImage
+bootm ramdisk;
+bootm prep;
+fdt set /soc/ethernet@20112000 mac-address ${icicle_mac_addr0};
+fdt set /soc/ethernet@20110000 mac-address ${icicle_mac_addr1};
+run design_overlays;
+bootm go;