bcm53xx: add pending BCM5301X patches: Netgear R8000 WiFi & Luxul DTS

This specifies wireless limitations for Netgear R8000 making sure people
won't use channels incorrectly (limited performance). There are also 2
new DTS files not used by us yet.

Signed-off-by: Rafał Miłecki <[email protected]>

target/linux/bcm53xx/patches-4.4/130-0001-ARM-BCM5301X-Set-5-GHz-wireless-frequency-limits-on-.patch

@@ -0,0 +1,123 @@
+From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <[email protected]>
+Subject: [PATCH] ARM: BCM5301X: Set 5 GHz wireless frequency limits on Netgear
+ R8000
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+Netgear R8000 is a tri-band home router. It has three BCM43602 chipsets
+two of them for 5 GHz band. Both seem the same and their firmwares
+report the same set of channels. The problem is due to hardware / board
+design there are extra limitations that should be respected.
+
+First PHY should be used for U-NII-2 and U-NII-3. Third PHY should be
+used for U-NII-1. Using them in a different way may result in wireless
+not working or in noticeably reduced performance. Basic version of this
+info was provided by Broadcom employee, then it has been verified by me
+using original vendor firmware (which has limitations hardcoded in UI).
+
+This patch uses recently introduced ieee80211-freq-limit property to
+describe these limitations at DT level.
+
+Referencing PCIe devices in DT required specifying all related bridges.
+Below you can see (a bit complex) PCI tree from R8000 that explains all
+entries that I needed to put in DT.
+
+0000:00:00.0		14e4:8012	Bridge Device
+└─ 0000:01:00.0		14e4:aa52	Network Controller
+
+0001:00:00.0		14e4:8012	Bridge Device
+└─ 0001:01:00.0		10b5:8603	Bridge Device
+   ├─ 0001:02:01.0	10b5:8603	Bridge Device
+   │  └─ 0001:03:00.0	14e4:aa52	Network Controller
+   ├─ 0001:02:02.0	10b5:8603	Bridge Device
+   │  └─ 0001:04:00.0	14e4:aa52	Network Controller
+   ├─ 0001:02:03.0	000d:0000	0x000000
+   ├─ 0001:02:04.0	000d:0000	0x000000
+   ├─ 0001:02:05.0	000d:0000	0x000000
+   ├─ 0001:02:06.0	000d:0000	0x000000
+   ├─ (...)
+   ├─ 0001:02:1d.0	000d:0000	0x000000
+   ├─ 0001:02:1e.0	000d:0000	0x000000
+   └─ 0001:02:1f.0	000d:0000	0x000000
+
+Signed-off-by: Rafał Miłecki <[email protected]>
+---
+ arch/arm/boot/dts/bcm4709-netgear-r8000.dts | 48 +++++++++++++++++++++++++++++
+ arch/arm/boot/dts/bcm5301x.dtsi             |  8 +++++
+ 2 files changed, 56 insertions(+)
+
+--- a/arch/arm/boot/dts/bcm4709-netgear-r8000.dts
++++ b/arch/arm/boot/dts/bcm4709-netgear-r8000.dts
+@@ -108,6 +108,54 @@
+ 	};
+ };
+ 
++&pcie0 {
++	#address-cells = <3>;
++	#size-cells = <2>;
++
++	bridge@0,0,0 {
++		reg = <0x0000 0 0 0 0>;
++
++		#address-cells = <3>;
++		#size-cells = <2>;
++
++		wifi@0,1,0 {
++			reg = <0x0000 0 0 0 0>;
++			ieee80211-freq-limit = <5735000 5835000>;
++		};
++	};
++};
++
++&pcie1 {
++	#address-cells = <3>;
++	#size-cells = <2>;
++
++	bridge@1,0,0 {
++		reg = <0x0000 0 0 0 0>;
++
++		#address-cells = <3>;
++		#size-cells = <2>;
++
++		bridge@1,1,0 {
++			reg = <0x0000 0 0 0 0>;
++
++			#address-cells = <3>;
++			#size-cells = <2>;
++
++			bridge@1,2,2 {
++				reg = <0x1000 0 0 0 0>;
++
++				#address-cells = <3>;
++				#size-cells = <2>;
++
++				wifi@1,4,0 {
++					reg = <0x0000 0 0 0 0>;
++					ieee80211-freq-limit = <5170000 5730000>;
++				};
++			};
++		};
++	};
++};
++
+ &usb2 {
+ 	vcc-gpio = <&chipcommon 0 GPIO_ACTIVE_HIGH>;
+ };
+--- a/arch/arm/boot/dts/bcm5301x.dtsi
++++ b/arch/arm/boot/dts/bcm5301x.dtsi
+@@ -243,6 +243,14 @@
+ 			#gpio-cells = <2>;
+ 		};
+ 
++		pcie0: pcie@12000 {
++			reg = <0x00012000 0x1000>;
++		};
++
++		pcie1: pcie@13000 {
++			reg = <0x00013000 0x1000>;
++		};
++
+ 		usb2: usb2@21000 {
+ 			reg = <0x00021000 0x1000>;
+ 

target/linux/bcm53xx/patches-4.4/130-0002-ARM-BCM5301X-Add-DT-for-Luxul-XAP-1410.patch

@@ -0,0 +1,86 @@
+From: Dan Haab <[email protected]>
+Subject: [PATCH] ARM: BCM5301X: Add DT for Luxul XAP-1410
+
+Luxul XAP-1410 in a dual-band access point device based on BCM47081 with
+serial flash. It has 3 LEDs and just one (reset) button.
+
+Signed-off-by: Dan Haab <[email protected]>
+---
+ arch/arm/boot/dts/Makefile                    |  1 +
+ arch/arm/boot/dts/bcm47081-luxul-xap-1410.dts | 60 +++++++++++++++++++++++++++
+ 2 files changed, 61 insertions(+)
+ create mode 100644 arch/arm/boot/dts/bcm47081-luxul-xap-1410.dts
+
+--- a/arch/arm/boot/dts/Makefile
++++ b/arch/arm/boot/dts/Makefile
+@@ -73,6 +73,7 @@ dtb-$(CONFIG_ARCH_BCM_5301X) += \
+ 	bcm47081-asus-rt-n18u.dtb \
+ 	bcm47081-buffalo-wzr-600dhp2.dtb \
+ 	bcm47081-buffalo-wzr-900dhp.dtb \
++	bcm47081-luxul-xap-1410.dtb \
+ 	bcm4709-asus-rt-ac87u.dtb \
+ 	bcm4709-buffalo-wxr-1900dhp.dtb \
+ 	bcm4709-netgear-r7000.dtb \
+--- /dev/null
++++ b/arch/arm/boot/dts/bcm47081-luxul-xap-1410.dts
+@@ -0,0 +1,60 @@
++/*
++ * Copyright 2017 Luxul Inc.
++ *
++ * Licensed under the ISC license.
++ */
++
++/dts-v1/;
++
++#include "bcm47081.dtsi"
++
++/ {
++	compatible = "luxul,xap-1410v1", "brcm,bcm47081", "brcm,bcm4708";
++	model = "Luxul XAP-1410 V1";
++
++	chosen {
++		bootargs = "console=ttyS0,115200";
++	};
++
++	memory {
++		reg = <0x00000000 0x08000000>;
++	};
++
++	leds {
++		compatible = "gpio-leds";
++
++		5ghz {
++			label = "bcm53xx:blue:5ghz";
++			gpios = <&chipcommon 13 GPIO_ACTIVE_LOW>;
++			linux,default-trigger = "none";
++		};
++
++		2ghz {
++			label = "bcm53xx:blue:2ghz";
++			gpios = <&chipcommon 14 GPIO_ACTIVE_LOW>;
++			linux,default-trigger = "none";
++		};
++
++		status {
++			label = "bcm53xx:green:status";
++			gpios = <&chipcommon 15 GPIO_ACTIVE_LOW>;
++			linux,default-trigger = "timer";
++		};
++	};
++
++	gpio-keys {
++		compatible = "gpio-keys";
++		#address-cells = <1>;
++		#size-cells = <0>;
++
++		restart {
++			label = "Reset";
++			linux,code = <KEY_RESTART>;
++			gpios = <&chipcommon 11 GPIO_ACTIVE_LOW>;
++		};
++	};
++};
++
++&spi_nor {
++	status = "okay";
++};

target/linux/bcm53xx/patches-4.4/130-0003-ARM-BCM5301X-Add-DT-for-Luxul-XWR-1200.patch

@@ -0,0 +1,133 @@
+From: Dan Haab <[email protected]>
+Subject: [PATCH] ARM: BCM5301X: Add DT for Luxul XWR-1200
+
+Luxul XWR-1200 in a dual-band router based on BCM47081. It uses serial
+flash (for bootloader and NVRAM) and NAND flash (for firmware).
+
+Signed-off-by: Dan Haab <[email protected]>
+---
+ arch/arm/boot/dts/Makefile                    |   1 +
+ arch/arm/boot/dts/bcm47081-luxul-xwr-1200.dts | 107 ++++++++++++++++++++++++++
+ 2 files changed, 108 insertions(+)
+ create mode 100644 arch/arm/boot/dts/bcm47081-luxul-xwr-1200.dts
+
+--- a/arch/arm/boot/dts/Makefile
++++ b/arch/arm/boot/dts/Makefile
+@@ -74,6 +74,7 @@ dtb-$(CONFIG_ARCH_BCM_5301X) += \
+ 	bcm47081-buffalo-wzr-600dhp2.dtb \
+ 	bcm47081-buffalo-wzr-900dhp.dtb \
+ 	bcm47081-luxul-xap-1410.dtb \
++	bcm47081-luxul-xwr-1200.dtb \
+ 	bcm4709-asus-rt-ac87u.dtb \
+ 	bcm4709-buffalo-wxr-1900dhp.dtb \
+ 	bcm4709-netgear-r7000.dtb \
+--- /dev/null
++++ b/arch/arm/boot/dts/bcm47081-luxul-xwr-1200.dts
+@@ -0,0 +1,107 @@
++/*
++ * Copyright 2017 Luxul Inc.
++ *
++ * Licensed under the ISC license.
++ */
++
++/dts-v1/;
++
++#include "bcm47081.dtsi"
++#include "bcm5301x-nand-cs0-bch4.dtsi"
++
++/ {
++	compatible = "luxul,xwr-1200v1", "brcm,bcm47081", "brcm,bcm4708";
++	model = "Luxul XWR-1200 V1";
++
++	chosen {
++		bootargs = "console=ttyS0,115200";
++	};
++
++	memory {
++		reg = <0x00000000 0x08000000>;
++	};
++
++	leds {
++		compatible = "gpio-leds";
++
++		power {
++			label = "bcm53xx:green:power";
++			gpios = <&chipcommon 0 GPIO_ACTIVE_LOW>;
++			linux,default-trigger = "default-on";
++		};
++
++		lan3 {
++			label = "bcm53xx:green:lan3";
++			gpios = <&chipcommon 1 GPIO_ACTIVE_LOW>;
++			linux,default-trigger = "none";
++		};
++
++		lan4 {
++			label = "bcm53xx:green:lan4";
++			gpios = <&chipcommon 2 GPIO_ACTIVE_LOW>;
++			linux,default-trigger = "none";
++		};
++
++		wan {
++			label = "bcm53xx:green:wan";
++			gpios = <&chipcommon 3 GPIO_ACTIVE_LOW>;
++			linux,default-trigger = "none";
++		};
++
++		lan2 {
++			label = "bcm53xx:green:lan2";
++			gpios = <&chipcommon 6 GPIO_ACTIVE_LOW>;
++			linux,default-trigger = "none";
++		};
++
++		usb {
++			label = "bcm53xx:green:usb";
++			gpios = <&chipcommon 8 GPIO_ACTIVE_LOW>;
++			linux,default-trigger = "none";
++		};
++
++		status {
++			label = "bcm53xx:green:status";
++			gpios = <&chipcommon 10 GPIO_ACTIVE_LOW>;
++			linux,default-trigger = "timer";
++		};
++
++		2ghz {
++			label = "bcm53xx:green:2ghz";
++			gpios = <&chipcommon 13 GPIO_ACTIVE_LOW>;
++			linux,default-trigger = "none";
++		};
++
++		5ghz {
++			label = "bcm53xx:green:5ghz";
++			gpios = <&chipcommon 14 GPIO_ACTIVE_LOW>;
++			linux,default-trigger = "none";
++		};
++
++		lan1 {
++			label = "bcm53xx:green:lan1";
++			gpios = <&chipcommon 15 GPIO_ACTIVE_LOW>;
++			linux,default-trigger = "none";
++		};
++	};
++
++	gpio-keys {
++		compatible = "gpio-keys";
++		#address-cells = <1>;
++		#size-cells = <0>;
++
++		restart {
++			label = "Reset";
++			linux,code = <KEY_RESTART>;
++			gpios = <&chipcommon 11 GPIO_ACTIVE_LOW>;
++		};
++	};
++};
++
++&usb2 {
++	vcc-gpio = <&chipcommon 9 GPIO_ACTIVE_HIGH>;
++};
++
++&spi_nor {
++	status = "okay";
++};

target/linux/bcm53xx/patches-4.4/301-ARM-BCM5301X-Add-DT-for-Netgear-R7900.patch

@@ -9,7 +9,7 @@ Signed-off-by: Rafał Miłecki <[email protected]>
 
 --- a/arch/arm/boot/dts/Makefile
 +++ b/arch/arm/boot/dts/Makefile
-@@ -76,6 +76,7 @@ dtb-$(CONFIG_ARCH_BCM_5301X) += \
+@@ -78,6 +78,7 @@ dtb-$(CONFIG_ARCH_BCM_5301X) += \
  	bcm4709-asus-rt-ac87u.dtb \
  	bcm4709-buffalo-wxr-1900dhp.dtb \
  	bcm4709-netgear-r7000.dtb \