diff --git a/general/package/legacy/ambarella-osdrv-s3l/Config.in b/general/package/legacy/ambarella-osdrv-s3l/Config.in
index c974e3b34..2180e65b3 100644
--- a/general/package/legacy/ambarella-osdrv-s3l/Config.in
+++ b/general/package/legacy/ambarella-osdrv-s3l/Config.in
@@ -1,6 +1,6 @@
 config BR2_PACKAGE_AMBARELLA_OSDRV_S3L
 	bool "ambarella-osdrv-s3l"
 	help
-	  ambarella-osdrv-s3l - Ambarella kernel modules and libs
+	  ambarella-osdrv-s3l - Ambarella kernel modules, libs and DSP microcode
 
 	  https://openipc.org
diff --git a/general/package/legacy/ambarella-osdrv-s3l/ambarella-osdrv-s3l.mk b/general/package/legacy/ambarella-osdrv-s3l/ambarella-osdrv-s3l.mk
index 0c896dc3a..9b3b2e17c 100644
--- a/general/package/legacy/ambarella-osdrv-s3l/ambarella-osdrv-s3l.mk
+++ b/general/package/legacy/ambarella-osdrv-s3l/ambarella-osdrv-s3l.mk
@@ -6,9 +6,11 @@
 
 AMBARELLA_OSDRV_S3L_SITE_METHOD = local
 AMBARELLA_OSDRV_S3L_SITE = $(AMBARELLA_OSDRV_S3L_PKGDIR)/src
-AMBARELLA_OSDRV_S3L_LICENSE = MIT
+AMBARELLA_OSDRV_S3L_LICENSE = MIT (load_ucode), PROPRIETARY (modules, microcode)
 
-# load_ucode puts the DSP microcode in place; the microcode itself is not shipped.
+# load_ucode puts the DSP microcode in place. files/firmware is the generic set
+# from Ambarella's S3L SDK release 2.5.0_20181109 (2018/10/28, 284712.282649),
+# not from a camera's stock firmware, which the tree does not accept (#2767).
 define AMBARELLA_OSDRV_S3L_BUILD_CMDS
 	$(MAKE) $(TARGET_CONFIGURE_OPTS) -C $(@D) load_ucode
 endef
@@ -20,6 +22,9 @@ define AMBARELLA_OSDRV_S3L_INSTALL_TARGET_CMDS
 	$(INSTALL) -m 755 -d $(TARGET_DIR)/lib/modules/3.10.104/ambarella
 	$(INSTALL) -m 644 -t $(TARGET_DIR)/lib/modules/3.10.104/ambarella $(AMBARELLA_OSDRV_S3L_PKGDIR)/files/kmod/*.ko
 
+	$(INSTALL) -m 755 -d $(TARGET_DIR)/lib/firmware
+	$(INSTALL) -m 644 -t $(TARGET_DIR)/lib/firmware $(AMBARELLA_OSDRV_S3L_PKGDIR)/files/firmware/*.bin
+
 	$(INSTALL) -m 755 -d $(TARGET_DIR)/usr/bin
 	$(INSTALL) -m 755 -t $(TARGET_DIR)/usr/bin $(AMBARELLA_OSDRV_S3L_PKGDIR)/files/script/load*
 	$(INSTALL) -m 755 -t $(TARGET_DIR)/usr/bin $(@D)/load_ucode
diff --git a/general/package/legacy/ambarella-osdrv-s3l/files/firmware/default_binary.bin b/general/package/legacy/ambarella-osdrv-s3l/files/firmware/default_binary.bin
new file mode 100644
index 000000000..cfd5db087
Binary files /dev/null and b/general/package/legacy/ambarella-osdrv-s3l/files/firmware/default_binary.bin differ
diff --git a/general/package/legacy/ambarella-osdrv-s3l/files/firmware/orccode.bin b/general/package/legacy/ambarella-osdrv-s3l/files/firmware/orccode.bin
new file mode 100644
index 000000000..638219488
Binary files /dev/null and b/general/package/legacy/ambarella-osdrv-s3l/files/firmware/orccode.bin differ
diff --git a/general/package/legacy/ambarella-osdrv-s3l/files/firmware/orcme.bin b/general/package/legacy/ambarella-osdrv-s3l/files/firmware/orcme.bin
new file mode 100644
index 000000000..e81da945a
Binary files /dev/null and b/general/package/legacy/ambarella-osdrv-s3l/files/firmware/orcme.bin differ
diff --git a/general/package/legacy/ambarella-osdrv-s3l/files/script/load_ambarella b/general/package/legacy/ambarella-osdrv-s3l/files/script/load_ambarella
index 11969574e..9e5799fad 100755
--- a/general/package/legacy/ambarella-osdrv-s3l/files/script/load_ambarella
+++ b/general/package/legacy/ambarella-osdrv-s3l/files/script/load_ambarella
@@ -17,10 +17,10 @@
 # them and the nodes have to be made here. The major comes from /proc/devices;
 # the minors are fixed.
 #
-# The microcode (orccode.bin, orcme.bin, default_binary.bin) is Ambarella's and
-# is not part of this package; load_ucode, which puts it in place, is built from
+# The microcode (orccode.bin, orcme.bin, default_binary.bin) is Ambarella's, from
+# the package's files/firmware; load_ucode, which puts it in place, is built from
 # the package's src/. Without the microcode the drivers load and the DSP does
-# not start, so no video. Drop it in /lib/firmware and this script loads it.
+# not start, so no video. An image that prunes it from /lib/firmware still boots.
 
 vendor=$(ipcinfo -v)
 ucode_dir=/lib/firmware