realtek: add common definition of cameo based firmware

The cameo-related recipes can also be used for APRESIA ApresiaLightGS
series devices. So create common definition for the devices manufactured
by Cameo.
And also, the model name of ApresiaLightGS120GT-SS is too long for cameo
header (max: 20 bytes), so use additional variable "CAMEO_BOARD_MODEL"
in Build/cameo-headers instead of DEVICE_MODEL to use the custom name.
(default of CAMEO_BOARD_MODEL: DEVICE_MODEL)

Signed-off-by: INAGAKI Hiroshi <[email protected]>

target/linux/realtek/image/Makefile

@@ -6,6 +6,7 @@ include $(INCLUDE_DIR)/image.mk
 KERNEL_LOADADDR = 0x80100000
 
 DEVICE_VARS += \
+        CAMEO_BOARD_MODEL \
         CAMEO_BOARD_VERSION \
         CAMEO_CUSTOMER_SIGNATURE \
         CAMEO_KERNEL_PART \
@@ -36,12 +37,12 @@ define Build/cameo-headers
         dd if=$@ bs=$(CAMEO_KERNEL_PART_SIZE) count=1 [email protected]_part; \
         dd if=$@ bs=$(CAMEO_KERNEL_PART_SIZE) skip=1 [email protected]_part; \
         $(SCRIPT_DIR)/cameo-imghdr.py [email protected]_part [email protected]_part.hex \
-                "$(DEVICE_MODEL)" os $(CAMEO_KERNEL_PART) \
+                "$(CAMEO_BOARD_MODEL)" os $(CAMEO_KERNEL_PART) \
                 $(CAMEO_CUSTOMER_SIGNATURE) \
                 $(CAMEO_BOARD_VERSION) \
                 $(KERNEL_LOADADDR); \
         $(SCRIPT_DIR)/cameo-imghdr.py [email protected]_part [email protected]_part.hex \
-                "$(DEVICE_MODEL)" squashfs $(CAMEO_ROOTFS_PART) \
+                "$(CAMEO_BOARD_MODEL)" squashfs $(CAMEO_ROOTFS_PART) \
                 $(CAMEO_CUSTOMER_SIGNATURE) \
                 $(CAMEO_BOARD_VERSION); \
         cat [email protected]_part.hex [email protected]_part.hex > $@

target/linux/realtek/image/common.mk

@@ -1,19 +1,13 @@
 # SPDX-License-Identifier: GPL-2.0-only
 
-define Device/d-link_dgs-1210
-  IMAGE_SIZE := 13824k
-  DEVICE_VENDOR := D-Link
-  DLINK_KERNEL_PART_SIZE := 1572864
+define Device/cameo-fw
+  CAMEO_BOARD_MODEL = $$(DEVICE_MODEL)
   KERNEL := \
 	kernel-bin | \
 	append-dtb | \
 	libdeflate-gzip | \
 	uImage gzip | \
 	cameo-tag
-  CAMEO_KERNEL_PART := 2
-  CAMEO_ROOTFS_PART := 3
-  CAMEO_CUSTOMER_SIGNATURE := 2
-  CAMEO_BOARD_VERSION := 32
   IMAGES += factory_image1.bin
   IMAGE/factory_image1.bin := \
 	append-kernel | \
@@ -26,6 +20,17 @@ define Device/d-link_dgs-1210
 	cameo-headers
 endef
 
+define Device/d-link_dgs-1210
+  $(Device/cameo-fw)
+  IMAGE_SIZE := 13824k
+  DEVICE_VENDOR := D-Link
+  CAMEO_KERNEL_PART_SIZE := 1572864
+  CAMEO_KERNEL_PART := 2
+  CAMEO_ROOTFS_PART := 3
+  CAMEO_CUSTOMER_SIGNATURE := 2
+  CAMEO_BOARD_VERSION := 32
+endef
+
 define Device/hpe_1920
   DEVICE_VENDOR := HPE
   IMAGE_SIZE := 29632k