From a57d6e2d47688cfa392d6ea7f36ae6f9d84affc5 Mon Sep 17 00:00:00 2001
From: Chris Blake <chrisrblake93@gmail.com>
Date: Wed, 20 Jul 2016 15:44:51 +0200
Subject: apm821xx: add support for the Cisco Meraki MR24

This patch adds support for the Cisco Meraki MR24 Access point
to the apm821xx target.

Board:		MR24 - Meraki MR24 Cloud Managed Access Point
CPU:		APM82181 SoC 800 MHz (PLB=200 OPB=100 EBC=100)
Flash size:	32MiB
RAM Size:	128MiB
Wireless:	Atheros AR9380 5.0GHz + Atheros AR9380 2.4GHz
Ethernet ports:	1x Gigabit Atheros AR8035

WARNING: The serial port needs a TTL/RS-232 v3.3 level converter!

For flashing instructions, visit:
<https://github.com/riptidewave93/Openwrt-MR24/blob/master/README.md#flashing>

Signed-off-by: Chris Blake <chrisrblake93@gmail.com>
---
 target/linux/apm821xx/image/Makefile | 81 +++++++++++++++++++++++++++++++-----
 1 file changed, 71 insertions(+), 10 deletions(-)

(limited to 'target/linux/apm821xx/image/Makefile')

diff --git a/target/linux/apm821xx/image/Makefile b/target/linux/apm821xx/image/Makefile
index 48ada70d3f..ba11bb22ee 100644
--- a/target/linux/apm821xx/image/Makefile
+++ b/target/linux/apm821xx/image/Makefile
@@ -4,19 +4,80 @@
 #
 include $(TOPDIR)/rules.mk
 include $(INCLUDE_DIR)/image.mk
+include $(INCLUDE_DIR)/host.mk
 
-IMAGE_PROFILE:=$(if $(PROFILE),$(PROFILE),Default)
-
-DEVICE_VARS += DTS IMAGE_SIZE
+DEVICE_VARS += DEVICE_DTS DEVICE_PROFILE IMAGE_SIZE DTB_SIZE
 
 define Device/Default
-  BOARDNAME :=
-  DEVICE_PROFILE = $$(BOARDNAME)
-  PROFILES = Default $$(DEVICE_PROFILE)
-  KERNEL_DEPENDS = $$(wildcard ../dts/$$(DTS).dts)
-  KERNEL := kernel-bin | lzma | uImage lzma
-  KERNEL_INITRAMFS := kernel-bin | lzma | uImage lzma
+  KERNEL_DEPENDS = $$(wildcard ../dts/$$(DEVICE_DTS).dts)
+  DEVICE_PROFILE :=
+  DEVICE_DTS :=
+  KERNEL_ENTRY := 0x00000000
+  KERNEL_LOADADDR := 0x00000000
+endef
+
+define Build/dtb
+	$(call Image/BuildDTB,../dts/$(DEVICE_DTS).dts,$@.dtb,,--space $(DTB_SIZE))
+endef
+
+ifeq ($(SUBTARGET),nand)
+
+define Image/cpiogz
+	( cd $(TARGET_DIR); find . | cpio -o -H newc | gzip -9n >$(KDIR_TMP)/$(IMG_PREFIX)-rootfs.cpio.gz )
+endef
+
+define Build/copy-file
+	cat "$(1)" > "$@"
+endef
+
+define Build/MerakiAdd-dtb
+	$(call Image/BuildDTB,../dts/$(DEVICE_DTS).dts,$@.dtb)
+	( \
+		dd if=$@.dtb bs=$(DTB_SIZE) conv=sync; \
+		dd if=$@ bs=$(BLOCKSIZE) conv=sync; \
+	) > $@.new
+	@mv $@.new $@
 endef
-TARGET_DEVICES += Default
+
+define Build/MerakiAdd-initramfs
+	$(call Image/cpiogz)
+
+	-$(STAGING_DIR_HOST)/bin/mkimage -A $(LINUX_KARCH) -O linux -T ramdisk \
+		-C gzip -n "$(PROFILE) rootfs" \
+		-d $(KDIR_TMP)/$(IMG_PREFIX)-rootfs.cpio.gz \
+		$(KDIR_TMP)/$(IMG_PREFIX)-uramdisk.image.gz
+
+	( \
+		dd if=$@ bs=1k conv=sync; \
+		dd if=$(KDIR_TMP)/$(IMG_PREFIX)-uramdisk.image.gz bs=$(BLOCKSIZE) conv=sync; \
+	) > $@.new
+	@mv $@.new $@
+endef
+
+define Build/MerakiNAND
+	-$(STAGING_DIR_HOST)/bin/mkmerakifw \
+		-B $(DEVICE_PROFILE) -s \
+		-i $@ \
+		-o $@.new
+	@cp $@.new $@
+endef
+
+define Device/mr24
+  DEVICE_TITLE := Cisco Meraki MR24
+  DEVICE_PACKAGES := kmod-spi-gpio kmod-ath9k wpad-mini
+  DEVICE_PROFILE := MR24
+  DEVICE_DTS := MR24
+  BLOCKSIZE := 64512
+  IMAGES := sysupgrade.tar
+  DTB_SIZE := 64512
+  KERNEL_SIZE := 2048k
+  IMAGE_SIZE := 8191k
+  KERNEL := kernel-bin | lzma | uImage lzma | MerakiAdd-dtb | MerakiNAND
+  KERNEL_INITRAMFS := copy-file $(KDIR)/vmlinux | lzma | uImage lzma | MerakiAdd-dtb | pad-to 2047k | MerakiAdd-initramfs | MerakiNAND
+  IMAGE/sysupgrade.tar := sysupgrade-nand
+endef
+TARGET_DEVICES += mr24
 
 $(eval $(call BuildImage))
+
+endif
-- 
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