[openwrt/openwrt] siflower: add per-subtarget image makefile

[LEDE Commits]

981213 pushed a commit to openwrt/openwrt.git, branch main:
https://git.openwrt.org/bbde170ec69917a26822b8c846037043ddfe2876

commit bbde170ec69917a26822b8c846037043ddfe2876
Author: Chuanhong Guo <gch981213 at gmail.com>
AuthorDate: Sat Sep 14 11:28:52 2024 +0800

    siflower: add per-subtarget image makefile
    
    Move SF19A2890 images into a separated .mk in preparation for
    more subtargets.
    
    Link: https://github.com/openwrt/openwrt/pull/17115
    Signed-off-by: Chuanhong Guo <gch981213 at gmail.com>
---
 target/linux/siflower/image/Makefile               | 23 +---------------------
 .../siflower/image/{Makefile => sf19a2890.mk}      |  6 ------
 2 files changed, 1 insertion(+), 28 deletions(-)

diff --git a/target/linux/siflower/image/Makefile b/target/linux/siflower/image/Makefile
index e86927dd78..394fcb6f0e 100644
--- a/target/linux/siflower/image/Makefile
+++ b/target/linux/siflower/image/Makefile
@@ -2,27 +2,6 @@
 include $(TOPDIR)/rules.mk
 include $(INCLUDE_DIR)/image.mk
 
-KERNEL_LOADADDR := 0x80100000
-
-define Device/Default
-  PROFILES := Default
-  BLOCKSIZE := 64k
-  FILESYSTEMS := squashfs
-  DEVICE_DTS_DIR := ../dts
-  KERNEL := kernel-bin | append-dtb | lzma | uImage lzma
-  KERNEL_INITRAMFS := kernel-bin | append-dtb | lzma | uImage lzma
-  IMAGES := sysupgrade.bin
-  IMAGE/sysupgrade.bin = append-kernel | pad-to $$$$(BLOCKSIZE) | \
-	append-rootfs | pad-rootfs | append-metadata
-endef
-
-define Device/siflower_sf19a2890-evb
-  DEVICE_VENDOR := Siflower
-  DEVICE_MODEL := SF19A2890 EVB
-  BOARD_NAME := siflower,sf19a2890-evb
-  DEVICE_DTS := sf19a2890_evb
-  DEVICE_PACKAGES := kmod-switch-rtl8367b swconfig
-endef
-TARGET_DEVICES += siflower_sf19a2890-evb
+include $(SUBTARGET).mk
 
 $(eval $(call BuildImage))
diff --git a/target/linux/siflower/image/Makefile b/target/linux/siflower/image/sf19a2890.mk
similarity index 88%
copy from target/linux/siflower/image/Makefile
copy to target/linux/siflower/image/sf19a2890.mk
index e86927dd78..289fd346f6 100644
--- a/target/linux/siflower/image/Makefile
+++ b/target/linux/siflower/image/sf19a2890.mk
@@ -1,7 +1,3 @@
-
-include $(TOPDIR)/rules.mk
-include $(INCLUDE_DIR)/image.mk
-
 KERNEL_LOADADDR := 0x80100000
 
 define Device/Default
@@ -24,5 +20,3 @@ define Device/siflower_sf19a2890-evb
   DEVICE_PACKAGES := kmod-switch-rtl8367b swconfig
 endef
 TARGET_DEVICES += siflower_sf19a2890-evb
-
-$(eval $(call BuildImage))