--- /dev/null
+From ec88a9c344d9fd8c3b11bff1f99a0b6248ae256d Mon Sep 17 00:00:00 2001
+From: Christian Lamparter <chunkeey@gmail.com>
+Date: Sat, 22 Aug 2020 18:19:23 +0200
+Subject: [PATCH] ARM: BCM5301X: Add DT for Meraki MR32
+
+add support for the Cisco Meraki MR32.
+This is a dual-band enterprise class 802.11ac access point.
+The unit was donated by Chris Blake. Thank you!
+
+SoC: Broadcom BCM53016A1 (1 GHz, 2 cores)
+RAM: 128 MiB
+NAND: 128 MiB Spansion S34ML01G2 (~114 MiB useable)
+ETH: 1GBit Ethernet Port - PoE
+WIFI1: Broadcom BCM43520 an+ac (2x2:2 - id: 0x4352)
+WIFI2: Broadcom BCM43520 bgn (2x2:2 - id: 0x4352)
+WIFI3: Broadcom BCM43428 abgn (1x1:1 - id: 43428)
+
+BLE: Broadcom BCM20732 (ttyS1)
+LEDS: 1 x Programmable RGB Status LED (driven by a PWM)
+ 1 x White LED (GPIO)
+ 1 x Orange LED Fault Indicator (GPIO)
+ 2 x LAN Activity / Speed LEDs (On the RJ45 Port)
+BUTTON: one Reset button
+MISC: AT24C64 8KiB EEPROM (i2c - stores Ethernet MAC)
+ ina219 hardware monitor (i2c)
+ Kensington Lock
+
+SERIAL:
+ WARNING: The serial port needs a TTL/RS-232 3V3 level converter!
+ The Serial setting is 115200-8-N-1. The board has a populated
+ right angle 1x4 0.1" pinheader.
+ The pinout is: VCC, RX, TX, GND.
+
+Odd stuff:
+ - uart0 clock frequency is 62.5 MHz.
+ - The LEDs are labeled as SYS-LED1 through SYS-LED3
+ because of the silkscreen on the PCB.
+ - the original u-boot has been compiled with most functions
+ and commands disabled. The u-boot env isn't setup properly
+ either and as a result, the bcm47xxpart probing is not
+ working. Hence, the nand partitions are specified through a
+ "fixed-partition" binding.
+ - The "WICED SMART(TM)" Bluetooth LE 4.0 BCM20732 chip is
+ connected to uart2 of the SoC. The BCM20732 does not
+ provide a HCI. So the linux' bluetooth stack is useless.
+ The mock-up node with the compatible binding and
+ enable-gpios property is provided solely as documentation.
+
+Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
+Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
+---
+ arch/arm/boot/dts/Makefile | 1 +
+ arch/arm/boot/dts/bcm53016-meraki-mr32.dts | 197 +++++++++++++++++++++
+ 2 files changed, 198 insertions(+)
+ create mode 100644 arch/arm/boot/dts/bcm53016-meraki-mr32.dts
+
+--- a/arch/arm/boot/dts/Makefile
++++ b/arch/arm/boot/dts/Makefile
+@@ -118,6 +118,7 @@ dtb-$(CONFIG_ARCH_BCM_5301X) += \
+ bcm47094-luxul-xwr-3150-v1.dtb \
+ bcm47094-netgear-r8500.dtb \
+ bcm47094-phicomm-k3.dtb \
++ bcm53016-meraki-mr32.dtb \
+ bcm94708.dtb \
+ bcm94709.dtb \
+ bcm953012er.dtb \
+--- /dev/null
++++ b/arch/arm/boot/dts/bcm53016-meraki-mr32.dts
+@@ -0,0 +1,197 @@
++// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
++/*
++ * Broadcom BCM470X / BCM5301X ARM platform code.
++ * DTS for Meraki MR32 / Codename: Espresso
++ *
++ * Copyright (C) 2018-2020 Christian Lamparter <chunkeey@gmail.com>
++ */
++
++/dts-v1/;
++
++#include "bcm4708.dtsi"
++#include "bcm5301x-nand-cs0-bch8.dtsi"
++#include <dt-bindings/leds/common.h>
++
++/ {
++ compatible = "meraki,mr32", "brcm,brcm53016", "brcm,bcm4708";
++ model = "Meraki MR32";
++
++ chosen {
++ bootargs = " console=ttyS0,115200n8 earlycon";
++ };
++
++ memory {
++ reg = <0x00000000 0x08000000>;
++ device_type = "memory";
++ };
++
++ aliases {
++ serial1 = &uart2;
++ };
++
++ leds {
++ compatible = "gpio-leds";
++
++ sysled3 {
++ function = LED_FUNCTION_FAULT;
++ color = <LED_COLOR_ID_AMBER>;
++ gpios = <&chipcommon 18 GPIO_ACTIVE_LOW>;
++ panic-indicator;
++ };
++ sysled2 {
++ function = LED_FUNCTION_INDICATOR;
++ color = <LED_COLOR_ID_WHITE>;
++ gpios = <&chipcommon 19 GPIO_ACTIVE_HIGH>;
++ };
++ };
++
++ keys {
++ compatible = "gpio-keys";
++ #address-cells = <1>;
++ #size-cells = <0>;
++
++ restart {
++ label = "Reset";
++ linux,code = <KEY_RESTART>;
++ gpios = <&chipcommon 21 GPIO_ACTIVE_LOW>;
++ };
++ };
++
++ pwm-leds {
++ compatible = "pwm-leds";
++
++ red {
++ /* SYS-LED 1 - Tricolor */
++ function = LED_FUNCTION_INDICATOR;
++ color = <LED_COLOR_ID_RED>;
++ pwms = <&pwm 0 50000 0>;
++ max-brightness = <255>;
++ };
++
++ green {
++ /* SYS-LED 1 - Tricolor */
++ function = LED_FUNCTION_POWER;
++ color = <LED_COLOR_ID_GREEN>;
++ pwms = <&pwm 1 50000 0>;
++ max-brightness = <255>;
++ };
++
++ blue {
++ /* SYS-LED 1 - Tricolor */
++ function = LED_FUNCTION_INDICATOR;
++ color = <LED_COLOR_ID_BLUE>;
++ pwms = <&pwm 2 50000 0>;
++ max-brightness = <255>;
++ };
++ };
++
++ i2c {
++ /*
++ * The platform provided I2C does not budge.
++ * This is a replacement until I can figure
++ * out what are the missing bits...
++ */
++
++ compatible = "i2c-gpio";
++ sda-gpios = <&chipcommon 5 GPIO_ACTIVE_HIGH>;
++ scl-gpios = <&chipcommon 4 GPIO_ACTIVE_HIGH>;
++ i2c-gpio,delay-us = <10>; /* close to 100 kHz */
++ #address-cells = <1>;
++ #size-cells = <0>;
++
++ current_sense: ina219@45 {
++ compatible = "ti,ina219";
++ reg = <0x45>;
++ shunt-resistor = <60000>; /* = 60 mOhms */
++ };
++
++ eeprom: eeprom@50 {
++ compatible = "atmel,24c64";
++ reg = <0x50>;
++ pagesize = <32>;
++ read-only;
++ };
++ };
++};
++
++&uart0 {
++ clock-frequency = <62500000>;
++ /delete-property/ clocks;
++};
++
++&uart1 {
++ status = "disabled";
++};
++
++&uart2 {
++ status = "okay";
++ /*
++ * bluetooth-le {
++ * compatible = "brcm,bcm20732";
++ * enable-gpios = <&chipcommon 20 GPIO_ACTIVE_HIGH>;
++ *};
++ */
++};
++
++&gmac1 {
++ status = "disabled";
++};
++&gmac2 {
++ status = "disabled";
++};
++&gmac3 {
++ status = "disabled";
++};
++
++&pwm {
++ status = "okay";
++ pinctrl-names = "default";
++ pinctrl-0 = <&pinmux_pwm>;
++};
++
++&nandcs {
++ nand-ecc-algo = "hw";
++
++ partitions {
++ /*
++ * The partition autodetection does not work for this device.
++ * It will only detect the "nvram" partition with an incorrect size.
++ * [ 1.721667] 1 bcm47xxpart partitions found on MTD device brcmnand.0
++ * [ 1.727962] Creating 1 MTD partitions on "brcmnand.0":
++ * [ 1.733117] 0x000000400000-0x000008000000 : "nvram"
++ */
++
++ compatible = "fixed-partitions";
++ #address-cells = <0x1>;
++ #size-cells = <0x1>;
++
++ partition0@0 {
++ label = "u-boot";
++ reg = <0x0 0x100000>;
++ read-only;
++ };
++
++ partition1@100000 {
++ label = "bootkernel1";
++ reg = <0x100000 0x300000>;
++ read-only;
++ };
++
++ partition2@400000 {
++ label = "nvram";
++ reg = <0x400000 0x100000>;
++ read-only;
++ };
++
++ partition3@500000 {
++ label = "bootkernel2";
++ reg = <0x500000 0x300000>;
++ read-only;
++ };
++
++ partition4@800000 {
++ label = "ubi";
++ reg = <0x800000 0x7780000>;
++ };
++ };
++};
projects / openwrt / openwrt.git / blobdiff