This patch adds support for the Meraki MR24 Access point to the apm821xx
target. More info on the device can be found at
https://wiki.openwrt.org/toh/meraki/mr24

Signed-off-by: Chris Blake <chrisrblak...@gmail.com>
---
 .../linux/apm821xx/base-files/etc/board.d/01_leds  |  25 ++
 .../apm821xx/base-files/etc/board.d/02_network     |   5 +-
 target/linux/apm821xx/base-files/etc/diag.sh       |  37 ++
 target/linux/apm821xx/base-files/lib/apm821xx.sh   |  39 ++
 .../lib/preinit/05_set_iface_mac_apm821xx          |  17 +
 .../apm821xx/base-files/lib/upgrade/merakinand.sh  |  65 ++++
 .../apm821xx/base-files/lib/upgrade/platform.sh    |  55 +++
 target/linux/apm821xx/dts/MR24.dts                 | 433 +++++++++++++++++++++
 target/linux/apm821xx/image/Makefile               |  57 +++
 .../700-powerpc_ibm_phy_add_ar8035.patch           |  41 ++
 .../800-ppc4xx-rng-fix-crash-during-init.patch     | 117 ++++++
 target/linux/apm821xx/profiles/meraki.mk           |  17 +
 tools/firmware-utils/src/mkmerakifw.c              |  10 +
 13 files changed, 917 insertions(+), 1 deletion(-)
 create mode 100755 target/linux/apm821xx/base-files/etc/board.d/01_leds
 create mode 100755 target/linux/apm821xx/base-files/etc/diag.sh
 create mode 100755 target/linux/apm821xx/base-files/lib/apm821xx.sh
 create mode 100644 
target/linux/apm821xx/base-files/lib/preinit/05_set_iface_mac_apm821xx
 create mode 100755 target/linux/apm821xx/base-files/lib/upgrade/merakinand.sh
 create mode 100755 target/linux/apm821xx/base-files/lib/upgrade/platform.sh
 create mode 100644 target/linux/apm821xx/dts/MR24.dts
 create mode 100644 
target/linux/apm821xx/patches-4.4/700-powerpc_ibm_phy_add_ar8035.patch
 create mode 100644 
target/linux/apm821xx/patches-4.4/800-ppc4xx-rng-fix-crash-during-init.patch
 create mode 100644 target/linux/apm821xx/profiles/meraki.mk

diff --git a/target/linux/apm821xx/base-files/etc/board.d/01_leds 
b/target/linux/apm821xx/base-files/etc/board.d/01_leds
new file mode 100755
index 0000000..a94871f
--- /dev/null
+++ b/target/linux/apm821xx/base-files/etc/board.d/01_leds
@@ -0,0 +1,25 @@
+#!/bin/sh
+#
+# Copyright (C) 2016 OpenWrt.org
+#
+
+. /lib/functions/uci-defaults.sh
+. /lib/apm821xx.sh
+
+board_config_update
+
+board=$(apm821xx_board_name)
+
+case "$board" in
+mr24)
+       ucidef_set_led_netdev "wan" "WAN" "mr24:green:wan" "eth0"
+       ucidef_set_led_wlan "wlan1" "WLAN1" "mr24:green:wifi1" "phy0assoc"
+       ucidef_set_led_wlan "wlan2" "WLAN2" "mr24:green:wifi2" "phy0assoc"
+       ucidef_set_led_wlan "wlan3" "WLAN3" "mr24:green:wifi3" "phy0assoc"
+       ucidef_set_led_wlan "wlan4" "WLAN4" "mr24:green:wifi4" "phy0tpt"
+       ;;
+esac
+
+board_config_flush
+
+exit 0
diff --git a/target/linux/apm821xx/base-files/etc/board.d/02_network 
b/target/linux/apm821xx/base-files/etc/board.d/02_network
index a4e5ab4..9738b4e 100755
--- a/target/linux/apm821xx/base-files/etc/board.d/02_network
+++ b/target/linux/apm821xx/base-files/etc/board.d/02_network
@@ -11,7 +11,10 @@ board_config_update
 
 board=$(apm821xx_board_name)
 
-case "$board" 
+case "$board" in
+mr24)
+       ucidef_set_interface_lan "eth0"
+       ;;
 *)
        ucidef_set_interfaces_lan_wan "eth0" "eth1"
        ;;
diff --git a/target/linux/apm821xx/base-files/etc/diag.sh 
b/target/linux/apm821xx/base-files/etc/diag.sh
new file mode 100755
index 0000000..787d0e1
--- /dev/null
+++ b/target/linux/apm821xx/base-files/etc/diag.sh
@@ -0,0 +1,37 @@
+#!/bin/sh
+#
+# Copyright (C) 2016 OpenWrt.org
+#
+
+. /lib/functions/leds.sh
+. /lib/apm821xx.sh
+
+get_status_led() {
+        case $(apm821xx_board_name) in
+        mr24)
+                status_led="mr24:green:power"
+                ;;
+        esac
+}
+
+set_state() {
+       get_status_led
+
+       case "$1" in
+       preinit)
+               status_led_blink_preinit
+               ;;
+
+       failsafe)
+               status_led_blink_failsafe
+               ;;
+
+       preinit_regular)
+               status_led_blink_preinit_regular
+               ;;
+
+       done)
+               status_led_on
+               ;;
+       esac
+}
diff --git a/target/linux/apm821xx/base-files/lib/apm821xx.sh 
b/target/linux/apm821xx/base-files/lib/apm821xx.sh
new file mode 100755
index 0000000..cfb1536
--- /dev/null
+++ b/target/linux/apm821xx/base-files/lib/apm821xx.sh
@@ -0,0 +1,39 @@
+#!/bin/sh
+#
+# Copyright (C) 2016 OpenWrt.org
+#
+
+APM821XX_BOARD_NAME=
+APM821XX_MODEL=
+
+apm821xx_board_detect() {
+       local model
+       local name
+
+       model=$(awk 'BEGIN{FS="[ \t]+:[ \t]"} /model/ {print $2}' /proc/cpuinfo)
+
+       case "$model" in
+       *"Meraki MR24 Access Point")
+               name="mr24"
+               ;;
+       esac
+
+       [ -z "$name" ] && name="unknown"
+
+       [ -z "$APM821XX_BOARD_NAME" ] && APM821XX_BOARD_NAME="$name"
+       [ -z "$APM821XX_MODEL" ] && APM821XX_MODEL="$model"
+
+       [ -e "/tmp/sysinfo/" ] || mkdir -p "/tmp/sysinfo/"
+
+       echo "$APM821XX_BOARD_NAME" > /tmp/sysinfo/board_name
+       echo "$APM821XX_MODEL" > /tmp/sysinfo/model
+}
+
+apm821xx_board_name() {
+       local name
+
+       [ -f /tmp/sysinfo/board_name ] && name=$(cat /tmp/sysinfo/board_name)
+       [ -z "$name" ] && name="unknown"
+
+       echo "$name"
+}
diff --git 
a/target/linux/apm821xx/base-files/lib/preinit/05_set_iface_mac_apm821xx 
b/target/linux/apm821xx/base-files/lib/preinit/05_set_iface_mac_apm821xx
new file mode 100644
index 0000000..773a761
--- /dev/null
+++ b/target/linux/apm821xx/base-files/lib/preinit/05_set_iface_mac_apm821xx
@@ -0,0 +1,17 @@
+#!/bin/sh
+#
+# Copyright (C) 2016 OpenWrt.org
+#
+
+. /lib/apm821xx.sh
+
+preinit_set_mac_address() {
+       case $(apm821xx_board_name) in
+               mr24)
+                       mac_lan=$(mtd_get_mac_binary_ubi board-config 102)
+                       [ -n "$mac_lan" ] && ifconfig eth0 hw ether "$mac_lan"
+                       ;;
+       esac
+}
+
+boot_hook_add preinit_main preinit_set_mac_address
diff --git a/target/linux/apm821xx/base-files/lib/upgrade/merakinand.sh 
b/target/linux/apm821xx/base-files/lib/upgrade/merakinand.sh
new file mode 100755
index 0000000..5861d97
--- /dev/null
+++ b/target/linux/apm821xx/base-files/lib/upgrade/merakinand.sh
@@ -0,0 +1,65 @@
+#!/bin/sh
+#
+# Copyright (C) 2016 Chris Blake <chrisrblak...@gmail.com>
+#
+# Custom upgrade script for Meraki NAND devices (ex. MR24)
+# Based on merakinand.sh from the ar71xx target
+#
+. /lib/apm821xx.sh
+. /lib/functions.sh
+
+merakinand_do_kernel_check() {
+       local board_name="$1"
+       local tar_file="$2"
+       local image_magic_word=`(tar xf $tar_file sysupgrade-$board_name/kernel 
-O 2>/dev/null | dd bs=1 count=4 skip=0 2>/dev/null | hexdump -v -n 4 -e '1/1 
"%02x"')`
+
+       # What is our kernel magic string?
+       case "$board_name" in
+       "mr24")
+               [ "$image_magic_word" == "8e73ed8a" ] && {
+                       echo "pass" && return 0
+               }
+               ;;
+       esac
+
+       exit 1
+}
+
+merakinand_do_platform_check() {
+       local board_name="$1"
+       local tar_file="$2"
+       local control_length=`(tar xf $tar_file sysupgrade-$board_name/CONTROL 
-O | wc -c) 2> /dev/null`
+       local file_type="$(identify_tar $2 sysupgrade-$board_name/root)"
+       local kernel_magic="$(merakinand_do_kernel_check $1 $2)"
+
+       case "$board_name" in
+       "mr24")
+               [ "$control_length" = 0 -o "$file_type" != "squashfs" -o 
"$kernel_magic" != "pass" ] && {
+                       echo "Invalid sysupgrade file for $board_name"
+                       return 1
+               }
+               ;;
+       *)
+               echo "Unsupported device $board_name";
+               return 1
+               ;;
+       esac
+
+       return 0
+}
+
+merakinand_do_upgrade() {
+       local tar_file="$1"
+       local board_name="$(cat /tmp/sysinfo/board_name)"
+
+       # Do we need to do any platform tweaks?
+       case "$board_name" in
+       "mr24")
+               nand_do_upgrade $1
+               ;;
+       *)
+               echo "Unsupported device $board_name";
+               exit 1
+               ;;
+       esac
+}
diff --git a/target/linux/apm821xx/base-files/lib/upgrade/platform.sh 
b/target/linux/apm821xx/base-files/lib/upgrade/platform.sh
new file mode 100755
index 0000000..f927a79
--- /dev/null
+++ b/target/linux/apm821xx/base-files/lib/upgrade/platform.sh
@@ -0,0 +1,55 @@
+#
+# Copyright (C) 2016 OpenWrt.org
+#
+
+. /lib/apm821xx.sh
+
+PART_NAME=firmware
+RAMFS_COPY_DATA=/lib/apm821xx.sh
+
+platform_check_image() {
+       local board=$(apm821xx_board_name)
+
+       [ "$#" -gt 1 ] && return 1
+
+       case "$board" in
+       mr24)
+               merakinand_do_platform_check $board $1
+               return $?;
+               ;;
+
+       esac
+
+       echo "Sysupgrade is not yet supported on $board."
+       return 1
+}
+
+platform_pre_upgrade() {
+       local board=$(apm821xx_board_name)
+
+       case "$board" in
+       mr24)
+               merakinand_do_upgrade "$1"
+               ;;
+       esac
+}
+
+platform_do_upgrade() {
+       local board=$(apm821xx_board_name)
+
+       case "$board" in
+       *)
+               default_do_upgrade "$ARGV"
+               ;;
+       esac
+}
+
+disable_watchdog() {
+       killall watchdog
+       ( ps | grep -v 'grep' | grep '/dev/watchdog' ) && {
+               echo 'Could not disable watchdog'
+               return 1
+       }
+}
+
+append sysupgrade_pre_upgrade disable_watchdog
diff --git a/target/linux/apm821xx/dts/MR24.dts 
b/target/linux/apm821xx/dts/MR24.dts
new file mode 100644
index 0000000..7abf9a6
--- /dev/null
+++ b/target/linux/apm821xx/dts/MR24.dts
@@ -0,0 +1,433 @@
+/*
+ * Device Tree Source for Meraki MR24 (Ikarem)
+ *
+ * Copyright (C) 2016 Chris Blake <chrisrblak...@gmail.com>
+ *
+ * Based on Cisco Meraki GPL Release r23-20150601 MR24 DTS
+ *
+ * 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/;
+
+/ {
+       #address-cells = <2>;
+       #size-cells = <1>;
+       model = "Meraki MR24 Access Point";
+       compatible = "apm,bluestone";
+       dcr-parent = <&{/cpus/cpu@0}>;
+
+       aliases {
+               ethernet0 = &EMAC0;
+               serial0 = &UART0;
+       };
+
+       cpus {
+               #address-cells = <1>;
+               #size-cells = <0>;
+
+               cpu@0 {
+                       device_type = "cpu";
+                       model = "PowerPC,apm821xx";
+                       reg = <0x00000000>;
+                       clock-frequency = <0>; /* Filled in by U-Boot */
+                       timebase-frequency = <0>; /* Filled in by U-Boot */
+                       i-cache-line-size = <32>;
+                       d-cache-line-size = <32>;
+                       i-cache-size = <32768>;
+                       d-cache-size = <32768>;
+                       dcr-controller;
+                       dcr-access-method = "native";
+                       next-level-cache = <&L2C0>;
+               };
+       };
+
+       memory {
+               device_type = "memory";
+               reg = <0x00000000 0x00000000 0x00000000>; /* Filled in by 
U-Boot */
+       };
+
+       UIC0: interrupt-controller0 {
+               compatible = "ibm,uic";
+               interrupt-controller;
+               cell-index = <0>;
+               dcr-reg = <0x0c0 0x009>;
+               #address-cells = <0>;
+               #size-cells = <0>;
+               #interrupt-cells = <2>;
+       };
+
+       UIC1: interrupt-controller1 {
+               compatible = "ibm,uic";
+               interrupt-controller;
+               cell-index = <1>;
+               dcr-reg = <0x0d0 0x009>;
+               #address-cells = <0>;
+               #size-cells = <0>;
+               #interrupt-cells = <2>;
+               interrupts = <0x1e 0x4 0x1f 0x4>; /* cascade */
+               interrupt-parent = <&UIC0>;
+       };
+
+       UIC2: interrupt-controller2 {
+               compatible = "ibm,uic";
+               interrupt-controller;
+               cell-index = <2>;
+               dcr-reg = <0x0e0 0x009>;
+               #address-cells = <0>;
+               #size-cells = <0>;
+               #interrupt-cells = <2>;
+               interrupts = <0xa 0x4 0xb 0x4>; /* cascade */
+               interrupt-parent = <&UIC0>;
+       };
+
+       UIC3: interrupt-controller3 {
+               compatible = "ibm,uic";
+               interrupt-controller;
+               cell-index = <3>;
+               dcr-reg = <0x0f0 0x009>;
+               #address-cells = <0>;
+               #size-cells = <0>;
+               #interrupt-cells = <2>;
+               interrupts = <0x10 0x4 0x11 0x4>; /* cascade */
+               interrupt-parent = <&UIC0>;
+       };
+
+       /* KPH check the following */
+       OCM: ocm@400040000 {
+               compatible = "ibm,ocm";
+               status = "okay";
+               cell-index = <1>;
+               /* configured in U-Boot */
+               reg = <4 0x00040000 0x8000>; /* 32K */
+       };
+
+       SDR0: sdr {
+               compatible = "ibm,sdr-apm821xx";
+               dcr-reg = <0x00e 0x002>;
+       };
+
+       CPR0: cpr {
+               compatible = "ibm,cpr-apm821xx";
+               dcr-reg = <0x00c 0x002>;
+       };
+
+       L2C0: l2c {
+               compatible = "ibm,l2-cache-apm82181", "ibm,l2-cache";
+               dcr-reg = <0x020 0x008
+                          0x030 0x008>;
+               cache-line-size = <32>;
+               cache-size = <262144>;
+               interrupt-parent = <&UIC1>;
+               interrupts = <11 1>;
+       };
+
+       /* kph check the below */
+       CPM0: cpm {
+               compatible = "ibm,cpm-apm821xx", "ibm,cpm";
+               cell-index = <0>;
+               dcr-reg = <0x160 0x003>;
+               pm-cpu = <0x02000000>;
+               pm-doze = <0x302570F0>;
+               pm-nap = <0x302570F0>;
+               pm-deepsleep = <0x302570F0>;
+               pm-iic-device = <&IIC0>;
+               pm-emac-device = <&EMAC0>;
+       };
+
+       plb {
+               compatible = "ibm,plb4";
+               #address-cells = <2>;
+               #size-cells = <1>;
+               ranges;
+               clock-frequency = <0>; /* Filled in by U-Boot */
+
+               SDRAM0: sdram {
+                       compatible = "ibm,sdram-apm821xx";
+                       dcr-reg = <0x010 0x002>;
+               };
+
+               /* kph check the below */
+               CRYPTO: crypto@180000 {
+                       compatible = "amcc,ppc460ex-crypto", 
"amcc,ppc4xx-crypto";
+                       reg = <4 0x00180000 0x80400>;
+                       interrupt-parent = <&UIC0>;
+                       interrupts = <0x1d 0x4>;
+               };
+
+               /* kph check the below */
+               PKA: pka@114000 {
+                       device_type = "pka";
+                       compatible = "ppc4xx-pka", "amcc,ppc4xx-pka";
+                       reg = <4 0x00114000 0x4000>;
+                       interrupt-parent = <&UIC0>;
+                       interrupts = <0x14 0x2>;
+               };
+
+               /* kph check the below */
+               TRNG: trng@110000 {
+                       compatible = "ppc4xx-trng", "amcc,ppc460ex-rng";
+                       reg = <4 0x00110000 0x50>;
+                       interrupt-parent = <&UIC1>;
+                       interrupts = <0x3 0x2>;
+               };
+
+               MAL0: mcmal {
+                       compatible = "ibm,mcmal2";
+                       descriptor-memory = "ocm";
+                       dcr-reg = <0x180 0x062>;
+                       num-tx-chans = <1>;
+                       num-rx-chans = <1>;
+                       #address-cells = <0>;
+                       #size-cells = <0>;
+                       interrupt-parent = <&UIC2>;
+                       interrupts = <  /*TXEOB*/ 0x6 0x4
+                                       /*RXEOB*/ 0x7 0x4
+                                       /*SERR*/  0x3 0x4
+                                       /*TXDE*/  0x4 0x4
+                                       /*RXDE*/  0x5 0x4>;
+               };
+
+               POB0: opb {
+                       compatible = "ibm,opb";
+                       #address-cells = <1>;
+                       #size-cells = <1>;
+                       ranges = <0xb0000000 0x00000004 0xb0000000 0x50000000>;
+                       clock-frequency = <0>; /* Filled in by U-Boot */
+
+                       EBC0: ebc {
+                               compatible = "ibm,ebc";
+                               dcr-reg = <0x012 0x002>;
+                               #address-cells = <2>;
+                               #size-cells = <1>;
+                               clock-frequency = <0>; /* Filled in by U-Boot */
+                               /* ranges property is supplied by U-Boot */
+                               ranges = < 0x00000003 0x00000000 0xe0000000 
0x8000000>;
+                               interrupts = <0x6 0x4>;
+                               interrupt-parent = <&UIC1>;
+
+                               /* Ikarem has 32MB of NAND */
+                               ndfc@1,0 {
+                                       compatible = "ibm,ndfc";
+                                       reg = <00000003 00000000 00000400>;
+                                       ccr = <0x00001000>;
+                                       bank-settings = <0x80002222>;
+                                       #address-cells = <1>;
+                                       #size-cells = <1>;
+                                       /* 32 MiB NAND Flash */
+                                       nand {
+                                               #address-cells = <1>;
+                                               #size-cells = <1>;
+                                               partition@0 {
+                                                       label = "u-boot";
+                                                       reg = <0x00000000 
0x00170000>;
+                                                       read-only;
+                                               };
+                                               partition@170000 {
+                                                       label = "oops";
+                                                       reg = <0x00170000 
0x00010000>;
+                                               };
+                                               partition@180000 {
+                                                       label = "ubi";
+                                                       reg = <0x00180000 
0x01e80000>;
+                                               };
+                                       };
+                               };
+                       };
+
+                       UART0: serial@ef600400 {
+                               device_type = "serial";
+                               compatible = "ns16550";
+                               reg = <0xef600400 0x00000008>;
+                               virtual-reg = <0xef600400>;
+                               clock-frequency = <0>; /* Filled in by U-Boot */
+                               current-speed = <0>; /* Filled in by U-Boot */
+                               interrupt-parent = <&UIC0>;
+                               interrupts = <0x1 0x4>;
+                       };
+
+                       GPIO0: gpio@ef600b00 {
+                               compatible = "ibm,ppc4xx-gpio";
+                               reg = <0xef600b00 0x00000048>;
+                               #gpio-cells = <2>;
+                               gpio-controller;
+                       };
+
+                       gpio-leds {
+                               compatible = "gpio-leds";
+                               power-green {
+                                       label = "mr24:green:power";
+                                       gpios = <&GPIO0 18 1>;
+                               };
+                               power-orange {
+                                       label = "mr24:orange:power";
+                                       gpios = <&GPIO0 19 1>;
+                               };
+                               lan {
+                                       label = "mr24:green:wan";
+                                       gpios = <&GPIO0 17 1>;
+                               };
+                               ssi-0 {
+                                       label = "mr24:green:wifi1";
+                                       gpios = <&GPIO0 23 1>;
+                               };
+                               ssi-1 {
+                                       label = "mr24:green:wifi2";
+                                       gpios = <&GPIO0 22 1>;
+                               };
+                               ssi-2 {
+                                       label = "mr24:green:wifi3";
+                                       gpios = <&GPIO0 21 1>;
+                               };
+                               ssi-3 {
+                                       label = "mr24:green:wifi4";
+                                       gpios = <&GPIO0 20 1>;
+                               };
+                       };
+
+                       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 = <0x198>; /* KEY_RESTART */
+                                       gpios = <&GPIO0 16 1>;
+                               };
+                       };
+
+                       IIC0: i2c@ef600700 {
+                               compatible = "ibm,iic";
+                               reg = <0xef600700 0x00000014>;
+                               interrupt-parent = <&UIC0>;
+                               interrupts = <0x2 0x4>;
+                               #address-cells = <1>;
+                               #size-cells = <0>;
+                               /* Boot ROM is at 0x52-0x53, do not touch */
+                               /* Unknown chip at 0x6e, not sure what it is */
+                       };
+
+                       IIC1: i2c@ef600800 {
+                               compatible = "ibm,iic";
+                               reg = <0xef600800 0x00000014>;
+                               interrupt-parent = <&UIC0>;
+                               interrupts = <0x3 0x4>;
+                       };
+
+                       RGMII0: emac-rgmii@ef601500 {
+                               compatible = "ibm,rgmii";
+                               reg = <0xef601500 0x00000008>;
+                               has-mdio;
+                       };
+
+                       TAH0: emac-tah@ef601350 {
+                               compatible = "ibm,tah";
+                               reg = <0xef601350 0x00000030>;
+                       };
+
+                       EMAC0: ethernet@ef600c00 {
+                               device_type = "network";
+                               compatible = "ibm,emac-apm821xx", 
"ibm,emac4sync";
+                               interrupt-parent = <&EMAC0>;
+                               interrupts = <0x0 0x1>;
+                               #interrupt-cells = <1>;
+                               #address-cells = <0>;
+                               #size-cells = <0>;
+                               interrupt-map = </*Status*/ 0x0 &UIC2 0x10 0x4
+                                                /*Wake*/   0x1 &UIC2 0x14 0x4>;
+                               reg = <0xef600c00 0x000000c4>;
+                               local-mac-address = [000000000000]; /* Filled 
in by U-Boot */
+                               mal-device = <&MAL0>;
+                               mal-tx-channel = <0>;
+                               mal-rx-channel = <0>;
+                               cell-index = <0>;
+                               max-frame-size = <9000>;
+                               rx-fifo-size = <16384>;
+                               tx-fifo-size = <2048>;
+                               phy-mode = "rgmii";
+                               phy-map = <0x00000000>;
+                               rgmii-device = <&RGMII0>;
+                               rgmii-channel = <0>;
+                               tah-device = <&TAH0>;
+                               tah-channel = <0>;
+                               has-inverted-stacr-oc;
+                               has-new-stacr-staopc;
+                       };
+               };
+
+               PCIE0: pciex@d00000000 {
+                       device_type = "pci";
+                       #interrupt-cells = <1>;
+                       #size-cells = <2>;
+                       #address-cells = <3>;
+                       compatible = "ibm,plb-pciex-apm821xx", "ibm,plb-pciex";
+                       primary;
+                       port = <0x0>; /* port number */
+                       reg = <0x0000000d 0x00000000 0x20000000 /* Config space 
access */
+                              0x0000000c 0x08010000 0x00001000>;       /* 
Registers */
+                       dcr-reg = <0x100 0x020>;
+                       sdr-base = <0x300>;
+
+                       /* Outbound ranges, one memory and one IO,
+                        * later cannot be changed
+                        */
+                       ranges = <0x02000000 0x00000000 0x80000000 0x0000000e 
0x00000000 0x00000000 0x80000000
+                                 0x02000000 0x00000000 0x00000000 0x0000000f 
0x00000000 0x00000000 0x00100000
+                                 0x01000000 0x00000000 0x00000000 0x0000000f 
0x80000000 0x00000000 0x00010000>;
+
+                       /* Inbound 2GB range starting at 0 */
+                       dma-ranges = <0x42000000 0x0 0x0 0x0 0x0 0x0 
0x80000000>;
+
+                       /* This drives busses 40 to 0x7f */
+                       bus-range = <0x40 0x7f>;
+
+                       /* Legacy interrupts (note the weird polarity, the 
bridge seems
+                        * to invert PCIe legacy interrupts).
+                        * We are de-swizzling here because the numbers are 
actually for
+                        * port of the root complex virtual P2P bridge. But I 
want
+                        * to avoid putting a node for it in the tree, so the 
numbers
+                        * below are basically de-swizzled numbers.
+                        * The real slot is on idsel 0, so the swizzling is 1:1
+                        */
+                       interrupt-map-mask = <0x0 0x0 0x0 0x7>;
+                       interrupt-map = <
+                               0x0 0x0 0x0 0x1 &UIC3 0xc 0x4 /* swizzled int A 
*/
+                               0x0 0x0 0x0 0x2 &UIC3 0xd 0x4 /* swizzled int B 
*/
+                               0x0 0x0 0x0 0x3 &UIC3 0xe 0x4 /* swizzled int C 
*/
+                               0x0 0x0 0x0 0x4 &UIC3 0xf 0x4 /* swizzled int D 
*/>;
+               };
+
+               MSI: ppc4xx-msi@C10000000 {
+                       compatible = "amcc,ppc4xx-msi", "ppc4xx-msi";
+                       reg = < 0xC 0x10000000 0x100
+                               0xC 0x10000000 0x100>;
+                       sdr-base = <0x36C>;
+                       msi-data = <0x00004440>;
+                       msi-mask = <0x0000ffe0>;
+                       interrupts =<0 1 2 3 4 5 6 7>;
+                       interrupt-parent = <&MSI>;
+                       #interrupt-cells = <1>;
+                       #address-cells = <0>;
+                       #size-cells = <0>;
+                       msi-available-ranges = <0x0 0x100>;
+                       interrupt-map = <
+                               0 &UIC3 0x18 1
+                               1 &UIC3 0x19 1
+                               2 &UIC3 0x1A 1
+                               3 &UIC3 0x1B 1
+                               4 &UIC3 0x1C 1
+                               5 &UIC3 0x1D 1
+                               6 &UIC3 0x1E 1
+                               7 &UIC3 0x1F 1
+                       >;
+               };
+       };
+
+       chosen {
+               linux,stdout-path = "/plb/opb/serial@ef600400";
+       };
+};
diff --git a/target/linux/apm821xx/image/Makefile 
b/target/linux/apm821xx/image/Makefile
index a9608e7..69f9fb7 100644
--- a/target/linux/apm821xx/image/Makefile
+++ b/target/linux/apm821xx/image/Makefile
@@ -11,6 +11,46 @@ IMAGE_PROFILE:=$(if $(PROFILE),$(PROFILE),Default)
 
 DEVICE_VARS += DTS IMAGE_SIZE
 
+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
+        $(call Image/BuildDTB,../dts/$(DTS).dts,$@.dtb)
+       ( \
+               dd if=$@.dtb bs=$(DTB_SIZE) conv=sync; \
+               dd if=$@ bs=$(BLOCKSIZE) conv=sync; \
+       ) > $@.new
+       @mv $@.new $@
+endef
+
+define Build/MerakiAdd-initramfs
+       $(call Image/cpiogz)
+
+       -$(STAGING_DIR_HOST)/bin/mkimage -A $(LINUX_KARCH) -O linux -T ramdisk \
+               -C gzip -n "$(PROFILE) OpenWRT 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 $(BOARDNAME) -s \
+               -i $@ \
+               -o $@.new
+       @cp $@.new $@
+endef
+
 define Device/Default
   BOARDNAME :=
   DEVICE_PROFILE = $$(BOARDNAME)
@@ -21,4 +61,21 @@ define Device/Default
 endef
 TARGET_DEVICES += Default
 
+define Device/mr24
+  BOARDNAME = MR24
+  BLOCKSIZE := 64k
+  IMAGES := sysupgrade.tar
+  DTS := MR24
+  DTB_SIZE := 63k
+  KERNEL_SIZE := 2048k
+  IMAGE_SIZE := 8191k
+  KERNEL_ENTRY := 0x00000000
+  KERNEL_LOADADDR := 0x00000000
+  KERNEL := kernel-bin | gzip | uImage gzip | MerakiAdd-dtb | MerakiNAND
+  KERNEL_INITRAMFS := copy-file $(KDIR)/vmlinux | gzip | uImage gzip | 
MerakiAdd-dtb | pad-to 2047k | MerakiAdd-initramfs | MerakiNAND
+  IMAGE/sysupgrade.tar := sysupgrade-nand
+
+endef
+TARGET_DEVICES += mr24
+
 $(eval $(call BuildImage))
diff --git 
a/target/linux/apm821xx/patches-4.4/700-powerpc_ibm_phy_add_ar8035.patch 
b/target/linux/apm821xx/patches-4.4/700-powerpc_ibm_phy_add_ar8035.patch
new file mode 100644
index 0000000..b0c1eeb
--- /dev/null
+++ b/target/linux/apm821xx/patches-4.4/700-powerpc_ibm_phy_add_ar8035.patch
@@ -0,0 +1,41 @@
+--- a/drivers/net/ethernet/ibm/emac/phy.c
++++ b/drivers/net/ethernet/ibm/emac/phy.c
+@@ -470,12 +470,38 @@ static struct mii_phy_def m88e1112_phy_d
+       .ops            = &m88e1112_phy_ops,
+ };
+
++static int ar8035_init(struct mii_phy *phy)
++{
++      phy_write(phy, 0x1d, 0x5); /* Address debug register 5 */
++      phy_write(phy, 0x1e, 0x2d47); /* ?? Value copied from u-boot */
++      phy_write(phy, 0x1d, 0xb);    /* Address hib ctrl */
++      phy_write(phy, 0x1e, 0xbc20); /* Another poorly documented register */
++
++      return 0;
++}
++
++static struct mii_phy_ops ar8035_phy_ops = {
++      .init           = ar8035_init,
++      .setup_aneg     = genmii_setup_aneg,
++      .setup_forced   = genmii_setup_forced,
++      .poll_link      = genmii_poll_link,
++      .read_link      = genmii_read_link,
++};
++
++static struct mii_phy_def ar8035_phy_def = {
++      .phy_id         = 0x004dd070,
++      .phy_id_mask    = 0xfffffff0,
++      .name           = "Atheros 8035 Gigabit Ethernet",
++      .ops            = &ar8035_phy_ops,
++};
++
+ static struct mii_phy_def *mii_phy_table[] = {
+       &et1011c_phy_def,
+       &cis8201_phy_def,
+       &bcm5248_phy_def,
+       &m88e1111_phy_def,
+       &m88e1112_phy_def,
++      &ar8035_phy_def,
+       &genmii_phy_def,
+       NULL
+ };
diff --git 
a/target/linux/apm821xx/patches-4.4/800-ppc4xx-rng-fix-crash-during-init.patch 
b/target/linux/apm821xx/patches-4.4/800-ppc4xx-rng-fix-crash-during-init.patch
new file mode 100644
index 0000000..6eed32f
--- /dev/null
+++ 
b/target/linux/apm821xx/patches-4.4/800-ppc4xx-rng-fix-crash-during-init.patch
@@ -0,0 +1,117 @@
+From 2159e200fcb68f88a94b1d5570d6000c100133a8 Mon Sep 17 00:00:00 2001
+From: Christian Lamparter <chunk...@googlemail.com>
+Date: Fri, 25 Mar 2016 19:00:05 +0100
+Subject: [PATCH] ppc4xx-rng: fix crash during init
+
+This patch fixes a crash that happens in the ppc4xx-rng driver
+when accessing the main crypto core to enable the true random
+number generator.
+
+Signed-off-by: Christian Lamparter <chunk...@googlemail.com>
+---
+ drivers/char/hw_random/ppc4xx-rng.c     | 42 ---------------------------------
+ drivers/crypto/amcc/crypto4xx_core.c    |  1 +
+ drivers/crypto/amcc/crypto4xx_reg_def.h |  1 +
+ 3 files changed, 2 insertions(+), 42 deletions(-)
+
+diff --git a/drivers/char/hw_random/ppc4xx-rng.c 
b/drivers/char/hw_random/ppc4xx-rng.c
+index c0db438..a9a8a29 100644
+--- a/drivers/char/hw_random/ppc4xx-rng.c
++++ b/drivers/char/hw_random/ppc4xx-rng.c
+@@ -17,9 +17,6 @@
+ #include <linux/of_platform.h>
+ #include <asm/io.h>
+ 
+-#define PPC4XX_TRNG_DEV_CTRL 0x60080
+-
+-#define PPC4XX_TRNGE 0x00020000
+ #define PPC4XX_TRNG_CTRL 0x0008
+ #define PPC4XX_TRNG_CTRL_DALM 0x20
+ #define PPC4XX_TRNG_STAT 0x0004
+@@ -51,40 +48,6 @@ static int ppc4xx_rng_data_read(struct hwrng *rng, u32 
*data)
+       return 4;
+ }
+ 
+-static int ppc4xx_rng_enable(int enable)
+-{
+-      struct device_node *ctrl;
+-      void __iomem *ctrl_reg;
+-      int err = 0;
+-      u32 val;
+-
+-      /* Find the main crypto device node and map it to turn the TRNG on */
+-      ctrl = of_find_compatible_node(NULL, NULL, "amcc,ppc4xx-crypto");
+-      if (!ctrl)
+-              return -ENODEV;
+-
+-      ctrl_reg = of_iomap(ctrl, 0);
+-      if (!ctrl_reg) {
+-              err = -ENODEV;
+-              goto out;
+-      }
+-
+-      val = in_le32(ctrl_reg + PPC4XX_TRNG_DEV_CTRL);
+-
+-      if (enable)
+-              val |= PPC4XX_TRNGE;
+-      else
+-              val = val & ~PPC4XX_TRNGE;
+-
+-      out_le32(ctrl_reg + PPC4XX_TRNG_DEV_CTRL, val);
+-      iounmap(ctrl_reg);
+-
+-out:
+-      of_node_put(ctrl);
+-
+-      return err;
+-}
+-
+ static struct hwrng ppc4xx_rng = {
+       .name = MODULE_NAME,
+       .data_present = ppc4xx_rng_data_present,
+@@ -100,10 +63,6 @@ static int ppc4xx_rng_probe(struct platform_device *dev)
+       if (!rng_regs)
+               return -ENODEV;
+ 
+-      err = ppc4xx_rng_enable(1);
+-      if (err)
+-              return err;
+-
+       out_le32(rng_regs + PPC4XX_TRNG_CTRL, PPC4XX_TRNG_CTRL_DALM);
+       ppc4xx_rng.priv = (unsigned long) rng_regs;
+ 
+@@ -117,7 +76,6 @@ static int ppc4xx_rng_remove(struct platform_device *dev)
+       void __iomem *rng_regs = (void __iomem *) ppc4xx_rng.priv;
+ 
+       hwrng_unregister(&ppc4xx_rng);
+-      ppc4xx_rng_enable(0);
+       iounmap(rng_regs);
+ 
+       return 0;
+diff --git a/drivers/crypto/amcc/crypto4xx_core.c 
b/drivers/crypto/amcc/crypto4xx_core.c
+index 62134c8..cb0b262 100644
+--- a/drivers/crypto/amcc/crypto4xx_core.c
++++ b/drivers/crypto/amcc/crypto4xx_core.c
+@@ -90,6 +90,7 @@ static void crypto4xx_hw_init(struct crypto4xx_device *dev)
+       writel(ring_ctrl.w, dev->ce_base + CRYPTO4XX_RING_CTRL);
+       device_ctrl = readl(dev->ce_base + CRYPTO4XX_DEVICE_CTRL);
+       device_ctrl |= PPC4XX_DC_3DES_EN;
++      device_ctrl |= PPC4XX_TRNGE;
+       writel(device_ctrl, dev->ce_base + CRYPTO4XX_DEVICE_CTRL);
+       writel(dev->gdr_pa, dev->ce_base + CRYPTO4XX_GATH_RING_BASE);
+       writel(dev->sdr_pa, dev->ce_base + CRYPTO4XX_SCAT_RING_BASE);
+diff --git a/drivers/crypto/amcc/crypto4xx_reg_def.h 
b/drivers/crypto/amcc/crypto4xx_reg_def.h
+index 5f5fbc0..914efc6 100644
+--- a/drivers/crypto/amcc/crypto4xx_reg_def.h
++++ b/drivers/crypto/amcc/crypto4xx_reg_def.h
+@@ -124,6 +124,7 @@
+ #define PPC4XX_BYTE_ORDER                     0x22222
+ #define PPC4XX_INTERRUPT_CLR                  0x3ffff
+ #define PPC4XX_PRNG_CTRL_AUTO_EN              0x3
++#define PPC4XX_TRNGE                          0x00020000
+ #define PPC4XX_DC_3DES_EN                     1
+ #define PPC4XX_INT_DESCR_CNT                  4
+ #define PPC4XX_INT_TIMEOUT_CNT                        0
+-- 
+2.8.0.rc3
+
diff --git a/target/linux/apm821xx/profiles/meraki.mk 
b/target/linux/apm821xx/profiles/meraki.mk
new file mode 100644
index 0000000..c22a485
--- /dev/null
+++ b/target/linux/apm821xx/profiles/meraki.mk
@@ -0,0 +1,17 @@
+#
+# Copyright (C) 2016 Chris Blake (chrisrblak...@gmail.com)
+#
+# This is free software, licensed under the GNU General Public License v2.
+# See /LICENSE for more information.
+#
+
+define Profile/MR24
+       NAME:=Meraki MR24
+       PACKAGES:=kmod-spi-gpio kmod-gpio-button-hotplug swconfig kmod-ath9k
+endef
+
+define Profile/MR24/description
+       Package set optimized for the Cisco Meraki MR24 Access Point.
+endef
+
+$(eval $(call Profile,MR24))
diff --git a/tools/firmware-utils/src/mkmerakifw.c 
b/tools/firmware-utils/src/mkmerakifw.c
index 241bb33..61b81c6 100644
--- a/tools/firmware-utils/src/mkmerakifw.c
+++ b/tools/firmware-utils/src/mkmerakifw.c
@@ -62,6 +62,16 @@ static const struct board_info boards[] = {
                                   0xbf, 0xef, 0x95, 0x60, 0x18,
                                   0x90, 0xaf, 0xd8, 0x07, 0x09},
        }, {
+               .id             = "mr24",
+               .description    = "Meraki MR24 Access Point",
+               .magic          = 0x8e73ed8a,
+               .imagelen       = 0x00800000,
+               .statichash     = {0xff, 0xff, 0xff, 0xff, 0xff,
+                                  0xff, 0xff, 0xff, 0xff, 0xff,
+                                  0xff, 0xff, 0xff, 0xff, 0xff,
+                                  0xff, 0xff, 0xff, 0xff, 0xff},
+       }, {
+
                /* terminating entry */
        }
 };
-- 
2.1.4
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