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Fix Raspberry Pi issues affecting WiFi (rhbz 1652093)

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This commit is contained in:
Peter Robinson 2018-12-14 01:59:34 +00:00
commit e5601459ec
3 changed files with 106 additions and 1 deletions
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45
bcm2837-fix-eth-leds.patch Normal file
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@ -0,0 +1,45 @@
From 6ef5bd6cfd5da9fe67aea031fd0a66ff77d64ad6 Mon Sep 17 00:00:00 2001
From: Stefan Wahren <stefan.wahren@i2se.com>
Date: Sat, 1 Sep 2018 20:16:22 +0200
Subject: ARM: dts: bcm283x-rpi-lan7515: Enable Ethernet LEDs
Since the LAN7515 on Raspberry Pi 3B+ doesn't have an EEPROM and the OTP
is empty, we need to enable the Ethernet LEDs via Device Tree.
Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
---
arch/arm/boot/dts/bcm283x-rpi-lan7515.dtsi | 14 ++++++++++++++
1 file changed, 14 insertions(+)
diff --git a/arch/arm/boot/dts/bcm283x-rpi-lan7515.dtsi b/arch/arm/boot/dts/bcm283x-rpi-lan7515.dtsi
index 9403da0990d0..70bece63f9a7 100644
--- a/arch/arm/boot/dts/bcm283x-rpi-lan7515.dtsi
+++ b/arch/arm/boot/dts/bcm283x-rpi-lan7515.dtsi
@@ -1,4 +1,6 @@
// SPDX-License-Identifier: GPL-2.0
+#include <dt-bindings/net/microchip-lan78xx.h>
+
/ {
aliases {
ethernet0 = &ethernet;
@@ -21,6 +23,18 @@
ethernet: ethernet@1 {
compatible = "usb424,7800";
reg = <1>;
+
+ mdio {
+ #address-cells = <0x1>;
+ #size-cells = <0x0>;
+ eth_phy: ethernet-phy@1 {
+ reg = <1>;
+ microchip,led-modes = <
+ LAN78XX_LINK_1000_ACTIVITY
+ LAN78XX_LINK_10_100_ACTIVITY
+ >;
+ };
+ };
};
};
};
--
cgit 1.2-0.3.lf.el7

51
bcm2837-fix-wifi-gpio-polarity.patch Normal file
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@ -0,0 +1,51 @@
From e25b6783c7b1bb79103d4617336879423f86b05e Mon Sep 17 00:00:00 2001
From: Stefan Wahren <stefan.wahren@i2se.com>
Date: Mon, 3 Dec 2018 19:37:08 +0100
Subject: ARM: dts: bcm2837: Fix polarity of wifi reset GPIOs
The commit b1b8f45b3130 ("ARM: dts: bcm2837: Add missing GPIOs of Expander")
introduced a wifi power sequence. Unfortunately the polarity of the reset
GPIOs were wrong and broke the wifi support on Raspberry Pi 3 B and
later in 3 B+. This wasn't discovered before since the power sequence
takes only effect in case the relevant MMC driver is compiled as a module.
Fixes: b1b8f45b3130 ("ARM: dts: bcm2837: Add missing GPIOs of Expander")
Cc: stable@vger.kernel.org
Reported-by: Matthias Lueschner <lueschem@gmail.com>
Link: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=911443
Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
---
arch/arm/boot/dts/bcm2837-rpi-3-b-plus.dts | 2 +-
arch/arm/boot/dts/bcm2837-rpi-3-b.dts | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/arm/boot/dts/bcm2837-rpi-3-b-plus.dts b/arch/arm/boot/dts/bcm2837-rpi-3-b-plus.dts
index 4adb85e66be3..93762244be7f 100644
--- a/arch/arm/boot/dts/bcm2837-rpi-3-b-plus.dts
+++ b/arch/arm/boot/dts/bcm2837-rpi-3-b-plus.dts
@@ -31,7 +31,7 @@
wifi_pwrseq: wifi-pwrseq {
compatible = "mmc-pwrseq-simple";
- reset-gpios = <&expgpio 1 GPIO_ACTIVE_HIGH>;
+ reset-gpios = <&expgpio 1 GPIO_ACTIVE_LOW>;
};
};
diff --git a/arch/arm/boot/dts/bcm2837-rpi-3-b.dts b/arch/arm/boot/dts/bcm2837-rpi-3-b.dts
index c318bcbc6ba7..89e6fd547c75 100644
--- a/arch/arm/boot/dts/bcm2837-rpi-3-b.dts
+++ b/arch/arm/boot/dts/bcm2837-rpi-3-b.dts
@@ -26,7 +26,7 @@
wifi_pwrseq: wifi-pwrseq {
compatible = "mmc-pwrseq-simple";
- reset-gpios = <&expgpio 1 GPIO_ACTIVE_HIGH>;
+ reset-gpios = <&expgpio 1 GPIO_ACTIVE_LOW>;
};
};
--
cgit 1.2-0.3.lf.el7

11
kernel.spec
View file

@ -42,7 +42,7 @@ Summary: The Linux kernel
# For non-released -rc kernels, this will be appended after the rcX and
# gitX tags, so a 3 here would become part of release "0.rcX.gitX.3"
#
%global baserelease 200
%global baserelease 201
%global fedora_build %{baserelease}
# base_sublevel is the kernel version we're starting with and patching
@ -599,6 +599,12 @@ Patch332: raspberrypi-Fix-firmware-calls-with-large-buffers.patch
# https://patchwork.kernel.org/patch/10677591/
Patch333: hwmon-rpi-Fix-initial-notify.patch
# From 4.20, fix RPi3B+ eth leds
Patch334: bcm2837-fix-eth-leds.patch
# From 4.20, fix wifi gpio polarity
Patch335: bcm2837-fix-wifi-gpio-polarity.patch
# Patches enabling device specific brcm firmware nvram
# https://www.spinics.net/lists/linux-wireless/msg178827.html
Patch340: brcmfmac-Remove-firmware-loading-code-duplication.patch
@ -1878,6 +1884,9 @@ fi
#
#
%changelog
* Fri Dec 14 2018 Peter Robinson <pbrobinson@fedoraproject.org> 4.19.9-201
- Fix Raspberry Pi issues affecting WiFi (rhbz 1652093)
* Thu Dec 13 2018 Jeremy Cline <jcline@redhat.com> - 4.19.9-200
- Linux v4.19.9