use FIT image for ti_j784s4 flasher

using latest Fedora kernel.
include DTBs for J784S4XEVM and SK-AM69

Author: michalskrivanek

packages/jumpstarter-driver-flashers/oci_bundles/ti_j784s4xevm/build_flasher.sh

@@ -0,0 +1,11 @@
+#!/bin/bash
+
+dnf install --setopt=install_weak_deps=false -y git make gcc gcc-c++ which file diffutils wget cpio rsync bc lzop zip patch perl tar qemu-system-aarch64 qemu-img unzboot uboot-tools kmod
+
+git clone --depth 1 --branch 2025.05-rc2  https://github.com/buildroot/buildroot /buildroot
+
+#./add_kernel.sh
+cp -R overlay /buildroot
+cp ti_defconfig  /buildroot/configs/
+( cd /buildroot; make ti_defconfig && make )
+mkimage -f flasher.its data/flasher.itb

packages/jumpstarter-driver-flashers/oci_bundles/ti_j784s4xevm/flasher.its

@@ -0,0 +1,77 @@
+/dts-v1/;
+
+/ {
+	description = "TI flasher FIT Image";
+	#address-cells = <1>;
+
+	images {
+		kernel {
+			description = "Kernel";
+			data = /incbin/("/buildroot/output/images/Image");
+			type = "kernel";
+			arch = "arm64";
+			os = "linux";
+			compression = "none";
+			load = <0x80000000>;
+			entry = <0x80000000>;
+			hash {
+				algo = "sha256";
+			};
+		};
+		initrd {
+			description = "Initrd";
+			data = /incbin/("/buildroot/output/images/rootfs.cpio.lzo");
+			type = "ramdisk";
+			arch = "arm64";
+			os = "linux";
+			compression = "none";
+			hash {
+				algo = "sha256";
+			};
+		};
+		fdt-j784s4 {
+			description = "DTB J784S4EVM";
+			data = /incbin/("/buildroot/output/images/k3-j784s4-evm.dtb");
+			type = "flat_dt";
+			arch = "arm64";
+			compression = "none";
+			load = <0x88000000>;
+			hash {
+				algo = "sha256";
+			};
+		};
+		fdt-am69 {
+			description = "DTB SK-AM69";
+			data = /incbin/("/buildroot/output/images/k3-am69-sk.dtb");
+			type = "flat_dt";
+			arch = "arm64";
+			compression = "none";
+			load = <0x88000000>;
+			hash {
+				algo = "sha256";
+			};
+		};
+	};
+
+	configurations {
+		default = "j784s4";
+		j784s4 {
+			description = "Boot J784S4";
+			kernel = "kernel";
+			fdt = "fdt-j784s4";
+			ramdisk = "initrd";
+			hash {
+				algo = "sha256";
+			};
+		};
+		am69 {
+			description = "Boot AM69";
+			kernel = "kernel";
+			fdt = "fdt-am69";
+			ramdisk = "initrd";
+			hash {
+				algo = "sha256";
+			};
+		};
+	};
+};

packages/jumpstarter-driver-flashers/oci_bundles/ti_j784s4xevm/manifest.yaml

@@ -5,7 +5,9 @@ metadata:
 spec:
   manufacturer: Texas Instruments
   link: "https://www.ti.com/tool/PROCESSOR-SDK-J784S4"
-  bootcmd: "booti 0x82000000 - 0x84000000"
+# boot using the default configuration built-in flasher.itb, j784s4
+# you can boot included alternative configurations, e.g. for SK-AM69 use "bootm 0x90000000#am69"
+  bootcmd: "bootm 0x90000000"
   shelltype: "busybox"
   login:
     login_prompt: "login:"
@@ -24,11 +26,12 @@ spec:
 #  preflash_commands:
 #    - "dd if=/dev/zero of=/dev/mmcblk0 bs=512 count=34"
 #    - "dd if=/dev/zero of=/dev/mmcblk1 bs=512 count=34"
+#
+# supply custom DTB by loading your own re-using the included kernel and initrd by e.g:
+# bootcmd: "bootm 0x90000000:kernel 0x90000000:initrd 0x88000000"
+# dtb:
+#   file: my.dtb
+#   address: "0x88000000"
   kernel:
-    file: data/J784S4XEVM.flasher.img
-    address: "0x82000000"
-  dtb:
-    default: k3-j784s4-evm
-    address: "0x84000000"
-    variants:
-      k3-j784s4-evm: data/dtbs/k3-j784s4-evm.dtb
+    file: data/flasher.itb
+    address: "0x90000000"

packages/jumpstarter-driver-flashers/oci_bundles/ti_j784s4xevm/overlay/etc/network/if-pre-up.d/wait-carrier.sh

@@ -0,0 +1,19 @@
+#!/bin/sh
+
+IF_WAIT_DELAY=30
+
+if [ "${IFACE}" != "lo" ]; then
+	ip link set ${IFACE} up
+	printf "Waiting for interface %s carrier" "${IFACE}"
+	while [ ${IF_WAIT_DELAY} -gt 0 ]; do
+		if [ "$(cat /sys/class/net/${IFACE}/carrier)" = "1" ]; then
+			printf "\n"
+			exit 0
+		fi
+		sleep 1
+		printf "."
+		: $((IF_WAIT_DELAY -= 1))
+	done
+	printf " timeout!\n"
+	exit 1
+fi

packages/jumpstarter-driver-flashers/oci_bundles/ti_j784s4xevm/ti_defconfig

@@ -0,0 +1,30 @@
+BR2_aarch64=y
+BR2_TOOLCHAIN_EXTERNAL=y
+BR2_TARGET_GENERIC_HOSTNAME="flasher"
+BR2_TARGET_GENERIC_ISSUE="flasher"
+BR2_ROOTFS_DEVICE_CREATION_DYNAMIC_EUDEV=y
+BR2_TARGET_GENERIC_ROOT_PASSWD=""
+BR2_SYSTEM_DHCP="eth0"
+BR2_ROOTFS_OVERLAY="$(CONFIG_DIR)/overlay"
+BR2_PACKAGE_CA_CERTIFICATES=y
+BR2_PACKAGE_OPENSSL=y
+BR2_PACKAGE_LIBCURL=y
+BR2_PACKAGE_LIBCURL_CURL=y
+BR2_PACKAGE_NTP=y
+BR2_PACKAGE_NTP_SNTP=y
+BR2_PACKAGE_NTP_NTPDATE=y
+BR2_TARGET_ROOTFS_CPIO=y
+BR2_TARGET_ROOTFS_CPIO_LZO=y
+BR2_PACKAGE_DROPBEAR=n
+# BR2_TARGET_ROOTFS_TAR is not set
+#
+# include initramfs within the kernel Image
+# on J784S4 the size exceeds uboot's CONFIG_SYS_BOOTM_LEN
+# BR2_TARGET_ROOTFS_INITRAMFS=y
+BR2_LINUX_KERNEL=y
+BR2_LINUX_KERNEL_USE_ARCH_DEFAULT_CONFIG=y
+BR2_LINUX_KERNEL_LZO=y
+BR2_LINUX_KERNEL_IMAGE=y
+BR2_LINUX_KERNEL_DTS_SUPPORT=y
+BR2_LINUX_KERNEL_INTREE_DTS_NAME="ti/k3-j784s4-evm ti/k3-am69-sk"
+