Merge from bittboy/buildroot@26c91a9

board/globalscale/espressobin/genimage.cfg

@@ -0,0 +1,11 @@
+# Minimal image, no U-boot since v3/v5 cannot boot from sdcard, see
+# readme.txt for details on configuring the on-board u-boot.
+image sdcard.img {
+	hdimage {
+	}
+
+	partition rootfs {
+		partition-type = 0x83
+		image = "rootfs.ext4"
+	}
+}