bcm53xx: build image for TP-LINK Archer C9 v1

Signed-off-by: Rafał Miłecki <rafal@milecki.pl>

target/linux/bcm53xx/base-files/lib/upgrade/platform.sh

@@ -31,6 +31,7 @@ platform_expected_image() {
 		"netgear,r7900")	echo "chk U12H315T30_NETGEAR"; return;;
 		"netgear,r8000")	echo "chk U12H315T00_NETGEAR"; return;;
 		"netgear,r8500")	echo "chk U12H334T00_NETGEAR"; return;;
+		"tplink,archer-c9-v1")	echo "safeloader"; return;;
 	esac
 }
 

target/linux/bcm53xx/image/Makefile

@@ -22,6 +22,22 @@ define Build/lzma-d16
 	mv $@.new $@
 endef
 
+# Similar to Build/tplink-safeloader but uses TRX instead of clean kernel
+define Build/bcm53xx-tplink-safeloader
+	$(STAGING_DIR_HOST)/bin/trx \
+		-o $@.trx \
+		-m 33554432 \
+		-f $(IMAGE_KERNEL) -a 1024
+	$(STAGING_DIR_HOST)/bin/tplink-safeloader \
+		-B $(TPLINK_BOARD) \
+		-k $@.trx \
+		-r $@ \
+		-j \
+		-o $@.new
+	mv $@.new $@
+	rm $@.trx
+endef
+
 define Build/trx-serial
 	$(STAGING_DIR_HOST)/bin/trx \
 		-o $@.new \
@@ -68,7 +84,7 @@ define Build/seama-nand
 		-i $@.entity
 endef
 
-DEVICE_VARS += PRODUCTID SIGNATURE NETGEAR_BOARD_ID NETGEAR_REGION
+DEVICE_VARS += PRODUCTID SIGNATURE NETGEAR_BOARD_ID NETGEAR_REGION TPLINK_BOARD
 
 BRCMFMAC_43602A1 := kmod-brcmfmac brcmfmac-firmware-43602a1-pcie
 BRCMFMAC_4366B1 := kmod-brcmfmac brcmfmac-firmware-4366b1-pcie
@@ -229,6 +245,15 @@ define Device/tenda-ac9
 endef
 TARGET_DEVICES += tenda-ac9
 
+define Device/tplink-archer-c9-v1
+  DEVICE_TITLE := TP-LINK Archer C9 V1
+  DEVICE_PACKAGES := $(USB3_PACKAGES)
+  IMAGES := bin
+  IMAGE/bin := append-rootfs | bcm53xx-tplink-safeloader
+  TPLINK_BOARD := ARCHERC9
+endef
+TARGET_DEVICES += tplink-archer-c9-v1
+
 TARGET_DEVICES += \
 	netgear-r6250 netgear-r6300-v2 netgear-r8000 \
 	smartrg-sr400ac