mirror of
https://github.com/openwrt/openwrt.git
synced 2024-12-22 06:57:57 +00:00
127 lines
3.4 KiB
Diff
127 lines
3.4 KiB
Diff
From d3af86018715ebb19f4111f80e545405b208f09b Mon Sep 17 00:00:00 2001
|
|
From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl>
|
|
Date: Sat, 14 Jan 2017 00:58:57 +0100
|
|
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 <rafal@milecki.pl>
|
|
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
|
|
---
|
|
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>;
|
|
|