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bcm53xx: add BCM53573 Ethernet fix sent upstream for v6.6

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It seems that DSA-based b53 driver never worked with BCM53573 SoCs and
BCM53125.

In case of swconfig-based b53 this fixes a regression. Switching bgmac
from using mdiobus_register() to of_mdiobus_register() resulted in MDIO
device (BCM53125) having of_node set (see of_mdiobus_register_phy()).
That made downstream b53 driver read invalid data from DT and broke
Ethernet support.

Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
This commit is contained in:
Rafał Miłecki 2023-07-23 22:41:18 +02:00
parent 9a5b1af670
commit 79fd3e62b4
2 changed files with 56 additions and 0 deletions
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28
target/linux/bcm53xx/patches-5.15/131-ARM-dts-BCM53573-Fix-Tenda-AC9-switch-CPU-port.patch Normal file
View File

@ -0,0 +1,28 @@
From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl>
Date: Sun, 23 Jul 2023 19:48:13 +0200
Subject: [PATCH 1/3] ARM: dts: BCM53573: Fix Tenda AC9 switch CPU port
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Primary Ethernet interface is connected to the port 8 (not 5).
Fixes: 64612828628c ("ARM: dts: BCM53573: Add Tenda AC9 switch ports")
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
---
arch/arm/boot/dts/broadcom/bcm47189-tenda-ac9.dts | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
--- a/arch/arm/boot/dts/bcm47189-tenda-ac9.dts
+++ b/arch/arm/boot/dts/bcm47189-tenda-ac9.dts
@@ -135,8 +135,8 @@
label = "lan4";
};
- port@5 {
- reg = <5>;
+ port@8 {
+ reg = <8>;
label = "cpu";
ethernet = <&gmac0>;
};

28
target/linux/bcm53xx/patches-6.1/131-ARM-dts-BCM53573-Fix-Tenda-AC9-switch-CPU-port.patch Normal file
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@ -0,0 +1,28 @@
From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl>
Date: Sun, 23 Jul 2023 19:48:13 +0200
Subject: [PATCH 1/3] ARM: dts: BCM53573: Fix Tenda AC9 switch CPU port
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Primary Ethernet interface is connected to the port 8 (not 5).
Fixes: 64612828628c ("ARM: dts: BCM53573: Add Tenda AC9 switch ports")
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
---
arch/arm/boot/dts/broadcom/bcm47189-tenda-ac9.dts | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
--- a/arch/arm/boot/dts/bcm47189-tenda-ac9.dts
+++ b/arch/arm/boot/dts/bcm47189-tenda-ac9.dts
@@ -135,8 +135,8 @@
label = "lan4";
};
- port@5 {
- reg = <5>;
+ port@8 {
+ reg = <8>;
label = "cpu";
ethernet = <&gmac0>;
};