apm821xx: Add support for the Cisco Meraki MX60/MX60W

This patch adds support for the Cisco Meraki MX60/MX60W Security
Appliance. Flashing information can be found at
https://github.com/riptidewave93/LEDE-MX60

Specs are as follows:
AppliedMicro APM82181 SoC at 800MHz
1GiB NAND - Samsung K9K8G08U0D
512MB DDR RAM - 4x Nanya NT5TU128M8GE-AC
Atheros AR8327-BL1A Gigabit Ethernet Switch
1x USB 2.0 Port

More info can be found at https://wiki.openwrt.org/toh/meraki/mx60

Cc: Christian Lamparter <chunkeey@gmail.com>

Signed-off-by: Chris Blake <chrisrblake93@gmail.com>

target/linux/apm821xx/base-files/etc/board.d/01_leds

@@ -16,6 +16,14 @@ mr24)
 	ucidef_set_led_wlan "wlan4" "WLAN4" "mr24:green:wifi4" "phy0tpt"
 	;;
 
+mx60)
+	ucidef_set_led_switch "wan" "WAN" "mx60:green:wan" "switch0" "0x20"
+	ucidef_set_led_switch "lan1" "LAN1" "mx60:green:lan1" "switch0" "0x10"
+	ucidef_set_led_switch "lan2" "LAN2" "mx60:green:lan2" "switch0" "0x08"
+	ucidef_set_led_switch "lan3" "LAN3" "mx60:green:lan3" "switch0" "0x04"
+	ucidef_set_led_switch "lan4" "LAN4" "mx60:green:lan4" "switch0" "0x02"
+	;;
+
 mbl)
 	ucidef_set_led_ide "sata" "SATA" "mbl:blue:power"
 	;;

target/linux/apm821xx/base-files/etc/board.d/02_network

@@ -9,11 +9,12 @@ board_config_update
 board=$(apm821xx_board_name)
 
 case "$board" in
-mbl | \
+mbl|\
 mr24)
 	ucidef_set_interface_lan "eth0"
 	;;
 
+mx60|\
 wndr4700)
 	ucidef_add_switch "switch0" \
 		"0@eth0" "4:lan" "3:lan" "2:lan" "1:lan" "5:wan"

target/linux/apm821xx/base-files/etc/diag.sh

@@ -4,17 +4,14 @@
 . /lib/apm821xx.sh
 
 get_status_led() {
-	case $(apm821xx_board_name) in
+	local board=$(apm821xx_board_name)
-	mbl)
-		status_led="mbl:green:power"
-		;;
-
-	mr24)
-		status_led="mr24:green:power"
-		;;
 
+	case $board in
+	mbl|\
+	mr24|\
+	mx60|\
 	wndr4700)
-		status_led="wndr4700:green:power"
+		status_led="$board:green:power"
 		;;
 
 	*)

target/linux/apm821xx/base-files/lib/apm821xx.sh

@@ -14,6 +14,10 @@ apm821xx_board_detect() {
 		name="mr24"
 		;;
 
+	*"Meraki MX60/MX60W Security Appliance")
+		name="mx60"
+		;;
+
 	*"MyBook Live"*)
 		name="mbl"
 		;;

target/linux/apm821xx/base-files/lib/preinit/05_set_iface_mac_apm821xx

@@ -4,7 +4,8 @@
 
 preinit_set_mac_address() {
 	case $(apm821xx_board_name) in
-		mr24)
+		mr24|\
+		mx60)
 			mac_lan=$(mtd_get_mac_binary_ubi board-config 102)
 			[ -n "$mac_lan" ] && ifconfig eth0 hw ether "$mac_lan"
 			;;

target/linux/apm821xx/base-files/lib/upgrade/merakinand.sh

@@ -15,7 +15,8 @@ merakinand_do_kernel_check() {
 
 	# What is our kernel magic string?
 	case "$board_name" in
-	"mr24")
+	"mr24"|\
+	"mx60")
 		[ "$image_magic_word" == "8e73ed8a" ] && {
 			echo "pass" && return 0
 		}
@@ -33,7 +34,8 @@ merakinand_do_platform_check() {
 	local kernel_magic="$(merakinand_do_kernel_check $1 $2)"
 
 	case "$board_name" in
-	"mr24")
+	"mr24"|\
+	"mx60")
 		[ "$control_length" = 0 -o "$file_type" != "squashfs" -o "$kernel_magic" != "pass" ] && {
 			echo "Invalid sysupgrade file for $board_name"
 			return 1
@@ -54,7 +56,8 @@ merakinand_do_upgrade() {
 
 	# Do we need to do any platform tweaks?
 	case "$board_name" in
-	"mr24")
+	"mr24"|\
+	"mx60")
 		nand_do_upgrade $1
 		;;
 	*)

target/linux/apm821xx/base-files/lib/upgrade/platform.sh

@@ -16,7 +16,8 @@ platform_check_image() {
 		return $?;
 		;;
 
-	mr24)
+	mr24|\
+	mx60)
 		merakinand_do_platform_check $board "$1"
 		return $?;
 		;;
@@ -38,7 +39,8 @@ platform_pre_upgrade() {
 	local board=$(apm821xx_board_name)
 
 	case "$board" in
-	mr24)
+	mr24|\
+	mx60)
 		merakinand_do_upgrade "$1"
 		;;
 

target/linux/apm821xx/config-4.4

@@ -35,6 +35,7 @@ CONFIG_AUDIT_ARCH=y
 # CONFIG_BAMBOO is not set
 CONFIG_BCH=y
 # CONFIG_BLUESTONE is not set
+CONFIG_BUCKMINSTER=y
 CONFIG_BOOKE=y
 CONFIG_BOOKE_WDT=y
 CONFIG_BOUNCE=y

target/linux/apm821xx/dts/MX60.dts

@@ -0,0 +1,186 @@
+/*
+ * Device Tree Source for Meraki MX60/MX60W (Buckminster)
+ *
+ * Copyright (C) 2016 Chris Blake <chrisrblake93@gmail.com>
+ *
+ * Based on Cisco Meraki DTS extracted from release wired-12-217818
+ *
+ * This file is licensed under the terms of the GNU General Public
+ * License version 2.  This program is licensed "as is" without
+ * any warranty of any kind, whether express or implied.
+ */
+
+/dts-v1/;
+
+#include "apm82181.dtsi"
+
+/ {
+	model = "Meraki MX60/MX60W Security Appliance";
+	compatible = "meraki,buckminster";
+
+	aliases {
+		serial0 = &UART1;
+	};
+
+	chosen {
+		linux,stdout-path = "/plb/opb/serial@ef600400";
+	};
+
+};
+
+&CRYPTO {
+	status = "okay";
+};
+
+&PKA {
+	status = "okay";
+};
+
+&TRNG {
+	status = "okay";
+};
+
+&USBOTG0 {
+	status = "okay";
+	dr_mode = "host";
+};
+
+&EBC0 {
+	/* Buckminster has 1GiB of NAND */
+	ndfc@1,0 {
+		status = "okay";
+		nand {
+			#address-cells = <1>;
+			#size-cells = <1>;
+
+			partition@0 {
+				label = "u-boot";
+				reg = <0x00000000 0x00100000>;
+				read-only;
+			};
+
+			partition@100000 {
+				label = "u-boot-env";
+				reg = <0x00100000 0x00100000>;
+				read-only;
+			};
+
+			partition@200000 {
+				label = "oops";
+				reg = <0x00200000 0x00040000>;
+			};
+
+			partition@240000 {
+				label = "ubi";
+				reg = <0x00240000 0x3fdc0000>;
+			};
+
+			all {
+				label = "all";
+				reg = <0x00000000 0x40000000>;
+			};
+		};
+	};
+};
+
+&UART1 {
+	status = "okay";
+};
+
+&GPIO0 {
+	status = "okay";
+};
+
+&IIC0 {
+	status = "okay";
+};
+
+&EMAC0 {
+	status = "okay";
+	phy-handle = <&phy0>;
+
+	mdio {
+		#address-cells = <1>;
+		#size-cells = <0>;
+		phy0: ethernet-phy@0 {
+			device_type = "ethernet-phy";
+			reg = <0>;
+			qca,ar8327-initvals = <
+				0x0010 0x40000000
+				0x0624 0x007f7f7f
+				0x0004 0x07a00000	/* PAD0_MODE */
+				0x000c 0x01000000	/* PAD6_MODE */
+				0x007c 0x0000007e	/* PORT0_STATUS */
+			>;
+		};
+	};
+};
+
+&POB0 {
+	gpio-leds {
+		compatible = "gpio-leds";
+
+		power-green {
+			label = "mx60:green:power";
+			gpios = <&GPIO0 18 GPIO_ACTIVE_LOW>;
+		};
+
+		power-orange {
+			label = "mx60:orange:power";
+			gpios = <&GPIO0 19 GPIO_ACTIVE_LOW>;
+		};
+
+		wan-green {
+			label = "mx60:green:wan";
+			gpios = <&GPIO0 17 GPIO_ACTIVE_LOW>;
+		};
+
+		wan-orange {
+			label = "mx60:orange:wan";
+			gpios = <&GPIO0 15 GPIO_ACTIVE_LOW>;
+		};
+
+		lan1 {
+			label = "mx60:green:lan1";
+			gpios = <&GPIO0 20 GPIO_ACTIVE_LOW>;
+		};
+
+		lan2 {
+			label = "mx60:green:lan2";
+			gpios = <&GPIO0 21 GPIO_ACTIVE_LOW>;
+		};
+
+		lan3 {
+			label = "mx60:green:lan3";
+			gpios = <&GPIO0 22 GPIO_ACTIVE_LOW>;
+		};
+
+		lan4 {
+			label = "mx60:green:lan4";
+			gpios = <&GPIO0 23 GPIO_ACTIVE_LOW>;
+		};
+	};
+
+	gpio_keys_polled {
+		compatible = "gpio-keys-polled";
+		#address-cells = <1>;
+		#size-cells = <0>;
+		poll-interval = <60>;	/* 3 * 20 = 60ms */
+		autorepeat;
+
+		button@1 {
+			label = "Reset button";
+			linux,code = <KEY_RESTART>;
+			gpios = <&GPIO0 16 GPIO_ACTIVE_LOW>;
+		};
+	};
+};
+
+&PCIE0 {
+	/* Leave this enabled as u-boot on the MX60 will disable it for us */
+	status = "okay";
+};
+
+&MSI {
+	status = "okay";
+};

target/linux/apm821xx/image/Makefile

@@ -84,6 +84,38 @@ define Device/mr24
 endef
 TARGET_DEVICES += mr24
 
+define Device/mx60
+  DEVICE_TITLE := Cisco Meraki MX60
+  DEVICE_PACKAGES := kmod-spi-gpio swconfig kmod-usb-ledtrig-usbport \
+	kmod-usb-dwc2 kmod-usb-storage block-mount
+  DEVICE_PROFILE := MX60
+  DEVICE_DTS := MX60
+  BLOCKSIZE := 63k
+  IMAGES := sysupgrade.tar
+  DTB_SIZE := 64512
+  # The kernel size will need to match the offset defined in mkmerakifw.c,
+  # otherwise the final image will fail to boot. This is set within the
+  # MX60 kernel header definition which is found at
+  # ./tools/firmware-utils/src/mkmerakifw.c, line 103~
+  KERNEL_SIZE := 2984k
+  IMAGE_SIZE := 1021m
+  KERNEL := kernel-bin | gzip | uImage gzip | MerakiAdd-dtb | MerakiNAND
+  KERNEL_INITRAMFS := copy-file $(KDIR)/vmlinux | gzip | uImage gzip | \
+		      check-size $$(KERNEL_SIZE) | \
+		      MerakiAdd-dtb | pad-to 2047k | MerakiAdd-initramfs | \
+		      MerakiNAND
+  IMAGE/sysupgrade.tar := sysupgrade-tar
+  UBINIZE_OPTS := -E 5
+endef
+TARGET_DEVICES += mx60
+
+define Device/mx60w
+$(Device/mx60)
+  DEVICE_TITLE := Cisco Meraki MX60W
+  DEVICE_PACKAGES += kmod-ath9k wpad-mini
+endef
+TARGET_DEVICES += mx60w
+
 define Build/create-uImage-dtb
 	# flat_dt target expect FIT image - which WNDR4700's uboot doesn't support
 	-$(STAGING_DIR_HOST)/bin/mkimage -A $(LINUX_KARCH) \

target/linux/apm821xx/patches-4.4/203-add-meraki-mx60-buckminster-support.patch

@@ -0,0 +1,32 @@
+--- a/arch/powerpc/platforms/44x/Kconfig
++++ b/arch/powerpc/platforms/44x/Kconfig
+@@ -30,6 +30,19 @@
+ 	help
+ 	  This option enables support for the APM APM821xx Evaluation board.
+
++config BUCKMINSTER
++	bool "Buckminster"
++	depends on 44x
++	default n
++	select APM821xx
++	select PCI_MSI
++	select PPC4xx_MSI
++	select PPC4xx_PCI_EXPRESS
++	select IBM_EMAC_RGMII
++	select 460EX
++	help
++	  This option enables support for the Cisco Meraki MX60/MX60W (Buckminster) Security Appliance
++
+ config EBONY
+ 	bool "Ebony"
+ 	depends on 44x
+--- a/arch/powerpc/platforms/44x/ppc44x_simple.c
++++ b/arch/powerpc/platforms/44x/ppc44x_simple.c
+@@ -63,6 +63,7 @@
+ 	"amcc,sequoia",
+ 	"amcc,taishan",
+ 	"amcc,yosemite",
++	"meraki,buckminster",
+ 	"meraki,ikarem",
+ 	"mosaixtech,icon"
+ };