analogdevicesinc · ozan956 · Apr 20, 2026 · Apr 20, 2026 · Apr 20, 2026 · Apr 20, 2026
diff --git a/.github/workflows/build.yaml b/.github/workflows/build.yaml
@@ -15,44 +15,52 @@ jobs:
 
     strategy:
       matrix:
-        defconfig:
-          - adi_sc598_ezkit_defconfig
-        flavor:
-          - debug
-          - bootstrap
+        include:
+          # SC598 SoM EZ-KIT builds
+          - defconfig: adi_sc598_ezkit_defconfig
+            name: sc598-som-ezkit-debug
+            fragments: ../configs/buildroot.fragment ../configs/debug.fragment
+          - defconfig: adi_sc598_ezkit_defconfig
+            name: sc598-som-ezkit-bootstrap
+            fragments: ../configs/buildroot.fragment ../configs/bootstrap.fragment
+          # HTOL builds
+          - defconfig: adi_sc598_ezkit_defconfig
+            name: sc598-htol-debug
+            fragments: ../configs/buildroot.fragment ../configs/htol.fragment ../configs/debug.fragment
+          - defconfig: adi_sc598_ezkit_defconfig
+            name: sc598-htol-bootstrap
+            fragments: ../configs/buildroot.fragment ../configs/htol.fragment ../configs/bootstrap.fragment
 
     steps:
       - name: Checkout br2-external
         uses: actions/checkout@v6
         with:
           submodules: recursive
 
-      - name: Build image for ${{ matrix.defconfig }} with ${{ matrix.flavor }} configuration
+      - name: Build ${{ matrix.name }}
         run: |
           cd buildroot
           make distclean
           make BR2_EXTERNAL="${PWD}/.." ${{ matrix.defconfig }}
-          support/kconfig/merge_config.sh .config \
-            ../configs/buildroot.fragment \
-            ../configs/${{ matrix.flavor }}.fragment
+          support/kconfig/merge_config.sh .config ${{ matrix.fragments }}
           make -j$(nproc)
 
-      - name: Upload Buildroot images for ${{ matrix.defconfig }} with ${{ matrix.flavor }} configuration
+      - name: Upload ${{ matrix.name }} images
         uses: actions/upload-artifact@v6
         with:
-          name: images-${{ matrix.flavor }}-${{ matrix.defconfig }}
+          name: images-${{ matrix.name }}
           path: buildroot/output/images
 
       - name: Archive output images directory
         if: ${{ github.event_name == 'release' }}
         run: |
-          tar -cJvf images-${{ matrix.flavor }}-${{ matrix.defconfig }}-${{ github.event.release.tag_name }}.tar.xz \
+          tar -cJvf images-${{ matrix.name }}-${{ github.event.release.tag_name }}.tar.xz \
             buildroot/output/images/
 
       - name: Upload release archive to release
         uses: svenstaro/upload-release-action@v2
         if: ${{ github.event_name == 'release' }}
         with:
           repo_token: ${{ secrets.GITHUB_TOKEN }}
-          file: images-${{ matrix.flavor }}-${{ matrix.defconfig }}-${{ github.event.release.tag_name }}.tar.xz
+          file: images-${{ matrix.name }}-${{ github.event.release.tag_name }}.tar.xz
           tag: ${{ github.ref }}
diff --git a/board/adi/sc598-htol/genimage.cfg b/board/adi/sc598-htol/genimage.cfg
@@ -0,0 +1,44 @@
+# ISSI Quad 128 Megabyte SPI flash
+# Model: IS25LP01G-RILE
+# Datasheet: https://www.issi.com/WW/pdf/IS25LP(WP)01G.pdf
+# Label: U4
+flash nor-128M-256 {
+	pebsize = 64K
+	numpebs = 2K
+	minimum-io-unit-size = 1
+	vid-header-offset = 64
+	sub-page-size = 1
+}
+
+image flash.img {
+	flash {}
+	flashtype = "nor-128M-256"
+
+	partition u-boot-spl {
+		image = "u-boot-spl.ldr"
+		size = 256K
+	}
+
+	partition u-boot {
+		image = "u-boot.ldr"
+		size = 704K
+	}
+
+	partition u-boot-env {
+		size = 64K
+	}
+
+	partition dtb {
+		image = "sc598-htol.dtb"
+		size = 64K
+	}
+
+	partition kernel {
+		image = "Image"
+		size = 32M
+	}
+
+	partition rootfs {
+		image = "rootfs.ubi"
+	}
+}
diff --git a/board/adi/sc598-htol/linux.fragment b/board/adi/sc598-htol/linux.fragment
@@ -0,0 +1,7 @@
+CONFIG_DEBUG_KERNEL=y
+CONFIG_DEBUG_INFO=y
+CONFIG_KALLSYMS=y
+CONFIG_KALLSYMS_ALL=y
+CONFIG_NETCONSOLE=y
+CONFIG_NETCONSOLE_DYNAMIC=y
+CONFIG_CONFIGFS_FS=y
diff --git a/board/adi/sc598-htol/uboot.env b/board/adi/sc598-htol/uboot.env
@@ -0,0 +1,15 @@
+bootmenu_0=Boot HTOL SPI flash=run sfboot
+bootmenu_1=Boot HTOL eMMC=run emmcboot
+bootdelay=5
+bootcmd=run sfboot
+sfboot=sf probe; sf read ${fdt_addr_r} 0x100000 0x9000; sf read ${kernel_addr_r} 0x110000 0xf00000; setenv bootargs ${bootargs} rootfstype=ubifs root=ubi0:rootfs ubi.mtd=3 rw; booti ${kernel_addr_r} - ${fdt_addr_r}
+emmcboot=fatload mmc 0:1 ${fdt_addr_r} /${fdtfile}; fatload mmc 0:1 ${kernel_addr_r} /Image; setenv bootargs ${bootargs} root=/dev/mmcblk0p2 rw rootfstype=ext4 rootwait; booti ${kernel_addr_r} - ${fdt_addr_r}
+bootargs=earlycon=adi_uart,0x31003000 console=ttySC0,115200 vmalloc=512M log_buf_len=4M
+kernel_addr_r=0x90009000
+fdt_addr_r=0x90000000
+fdtfile=sc598-htol.dtb
+ethaddr=02:80:ad:20:31:e8
+eth1addr=02:80:ad:20:31:e9
+httpdstp=8000
+nc_start=setenv stdin serial,nc; setenv stdout serial,nc; setenv stderr serial,nc
+nc_stop=setenv stdin serial; setenv stdout serial; setenv stderr serial
diff --git a/board/adi/sc598-htol/uboot.fragment b/board/adi/sc598-htol/uboot.fragment
@@ -0,0 +1,5 @@
+# CONFIG_ENV_IS_NOWHERE is not set
+CONFIG_ENV_IS_IN_SPI_FLASH=y
+CONFIG_ENV_OFFSET=0xF0000
+CONFIG_ENV_SIZE=0x10000
+CONFIG_ENV_SECT_SIZE=0x10000
diff --git a/buildroot b/buildroot
diff --git a/configs/htol.fragment b/configs/htol.fragment
@@ -0,0 +1,9 @@
+BR2_TARGET_GENERIC_HOSTNAME="sc598-htol"
+BR2_TARGET_GENERIC_ISSUE="Welcome to the ADI SC598 HTOL Board"
+BR2_LINUX_KERNEL_INTREE_DTS_NAME="adi/sc598-htol"
+BR2_TARGET_UBOOT_BOARD_DEFCONFIG="sc598-htol-spl"
+BR2_TARGET_UBOOT_CONFIG_FRAGMENT_FILES="$(BR2_EXTERNAL)/board/adi/sc598-htol/uboot.fragment"
+BR2_LINUX_KERNEL_CONFIG_FRAGMENT_FILES="$(BR2_EXTERNAL)/board/adi/sc598-htol/linux.fragment"
+BR2_TARGET_UBOOT_DEFAULT_ENV_FILE="$(BR2_EXTERNAL)/board/adi/sc598-htol/uboot.env"
+BR2_ROOTFS_POST_IMAGE_SCRIPT_ARGS="-c $(BR2_EXTERNAL)/board/adi/sc598-htol/genimage.cfg"
+BR2_PACKAGE_LIGHTTPD=y
+1 −1		board/adi/patches/linux/linux.hash
+1 −1		board/adi/patches/uboot/uboot.hash
+2 −2		configs/adi_sc598_ezkit_defconfig