ath79: add mikrotik subtarget

This commit creates the ath79/mikrotik subtarget in order to support
MikroTik devices based on Qualcomm Atheros MIPS SoCs.

MikroTik devices need a couple of specific features: the split MiNOR
firmware MTD format, which is not used by other devices, and the 4k
sector erase size on SPI NOR storage, which can not be added to the
ath79/generic and ath79/nand subtargets now.

Additionally, the commit moves the two MikroTik devices already in
the generic and nand subtargets to this new one.

Tested on the RB922 board and the wAP AC router.

Signed-off-by: Roger Pueyo Centelles <roger.pueyo@guifi.net>

4 files changed, 30 insertions, 28 deletions

diff --git a/target/linux/ath79/image/Makefile b/target/linux/ath79/image/Makefile
index c27db93947..c568c7238c 100644
--- a/target/linux/ath79/image/Makefile
+++ b/target/linux/ath79/image/Makefile
@@ -73,6 +73,9 @@ include ./generic.mk
 include ./generic-tp-link.mk
 include ./generic-ubnt.mk
 endif
+ifeq ($(SUBTARGET),mikrotik)
+include ./mikrotik.mk
+endif
 ifeq ($(SUBTARGET),nand)
 include ./nand.mk
 endif
diff --git a/target/linux/ath79/image/generic.mk b/target/linux/ath79/image/generic.mk
index 5a0b0ab67e..3ce51cc0d6 100644
--- a/target/linux/ath79/image/generic.mk
+++ b/target/linux/ath79/image/generic.mk
@@ -1,5 +1,4 @@
 include ./common-buffalo.mk
-include ./common-mikrotik.mk
 include ./common-netgear.mk
 include ./common-tp-link.mk
 include ./common-yuncore.mk
@@ -765,19 +764,6 @@ define Device/librerouter_librerouter-v1
 endef
 TARGET_DEVICES += librerouter_librerouter-v1
 
-define Device/mikrotik_routerboard-wap-g-5hact2hnd
-  $(Device/mikrotik)
-  SOC := qca9556
-  DEVICE_MODEL := RouterBOARD wAP G-5HacT2HnD (wAP AC)
-  IMAGE_SIZE := 16256k
-  IMAGE/sysupgrade.bin := append-kernel | kernel2minor -s 1024 -e | \
-	pad-to $$$$(BLOCKSIZE) | append-rootfs | pad-rootfs | \
-	append-metadata | check-size $$$$(IMAGE_SIZE)
-  DEVICE_PACKAGES += kmod-ath10k-ct-smallbuffers ath10k-firmware-qca988x-ct
-  SUPPORTED_DEVICES += rb-wapg-5hact2hnd
-endef
-TARGET_DEVICES += mikrotik_routerboard-wap-g-5hact2hnd
-
 define Device/nec_wg1200cr
   SOC := qca9563
   DEVICE_VENDOR := NEC
diff --git a/target/linux/ath79/image/mikrotik.mk b/target/linux/ath79/image/mikrotik.mk
new file mode 100644
index 0000000000..a6863dc130
--- /dev/null
+++ b/target/linux/ath79/image/mikrotik.mk
@@ -0,0 +1,27 @@
+include ./common-mikrotik.mk
+
+define Device/mikrotik_routerboard-922uags-5hpacd
+  $(Device/mikrotik)
+  SOC := qca9558
+  DEVICE_MODEL := RouterBOARD 922UAGS-5HPacD
+  BOARD_NAME := routerboard
+  IMAGE/sysupgrade.bin = append-kernel | kernel2minor -s 2048 -e -c | \
+	sysupgrade-tar kernel=$$$$@ | append-metadata
+  DEVICE_PACKAGES += kmod-ath10k-ct ath10k-firmware-qca988x-ct \
+	kmod-usb2 nand-utils
+  SUPPORTED_DEVICES += rb-922uags-5hpacd
+endef
+TARGET_DEVICES += mikrotik_routerboard-922uags-5hpacd
+
+define Device/mikrotik_routerboard-wap-g-5hact2hnd
+  $(Device/mikrotik)
+  SOC := qca9556
+  DEVICE_MODEL := RouterBOARD wAP G-5HacT2HnD (wAP AC)
+  IMAGE_SIZE := 16256k
+  IMAGE/sysupgrade.bin := append-kernel | kernel2minor -s 1024 -e | \
+	pad-to $$$$(BLOCKSIZE) | append-rootfs | pad-rootfs | \
+	append-metadata | check-size $$$$(IMAGE_SIZE)
+  DEVICE_PACKAGES += kmod-ath10k-ct-smallbuffers ath10k-firmware-qca988x-ct
+  SUPPORTED_DEVICES += rb-wapg-5hact2hnd
+endef
+TARGET_DEVICES += mikrotik_routerboard-wap-g-5hact2hnd
diff --git a/target/linux/ath79/image/nand.mk b/target/linux/ath79/image/nand.mk
index 4cb6ea2957..8f28af4655 100644
--- a/target/linux/ath79/image/nand.mk
+++ b/target/linux/ath79/image/nand.mk
@@ -1,4 +1,3 @@
-include ./common-mikrotik.mk
 include ./common-netgear.mk	# for netgear-uImage
 
 # attention: only zlib compression is allowed for the boot fs
@@ -129,19 +128,6 @@ define Device/glinet_gl-ar750s-nor
 endef
 TARGET_DEVICES += glinet_gl-ar750s-nor
 
-define Device/mikrotik_routerboard-922uags-5hpacd
-  $(Device/mikrotik)
-  SOC := qca9558
-  DEVICE_MODEL := RouterBOARD 922UAGS-5HPacD
-  BOARD_NAME := routerboard
-  IMAGE/sysupgrade.bin = append-kernel | kernel2minor -s 2048 -e -c | \
-	sysupgrade-tar kernel=$$$$@ | append-metadata
-  DEVICE_PACKAGES += kmod-ath10k-ct ath10k-firmware-qca988x-ct \
-	kmod-usb2 nand-utils
-  SUPPORTED_DEVICES += rb-922uags-5hpacd
-endef
-TARGET_DEVICES += mikrotik_routerboard-922uags-5hpacd
-
 # fake rootfs is mandatory, pad-offset 129 equals (2 * uimage_header + 0xff)
 define Device/netgear_ath79_nand
   DEVICE_VENDOR := NETGEAR