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authorTony Ambardar <itugrok@yahoo.com>2023-01-16 03:18:00 -0800
committerHauke Mehrtens <hauke@hauke-m.de>2023-04-23 18:57:29 +0200
commit70000ab509a0730e842c4b56dd1a505dd53deaa3 (patch)
treec3fc1f7fc92a8927f24bd5268b0dc0d6a3bba596 /target/linux/ath79
parentf3bb1eea32c728470563e7e0df8bd905a913e074 (diff)
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ath79: use gpios for switch management in WZR-HP-G300NH variants
The RTL8366S/RB switch node in DTS defines "mii-bus = <&mdio0>" to permit management via SMI but this has likely never worked, instead falling back to using GPIOs in the past: rtl8366s switch: cannot find mdio bus from bus handle (yet) rtl8366s switch: using GPIO pins 19 (SDA) and 20 (SCK) rtl8366s switch: RTL8366 ver. 1 chip found Recently, the rtl8366s and rtl8366_smi drivers were changed from built-in to loadable modules. This affected driver probing order and caused switch initialization (and network access) to fail: rtl8366s switch: using MDIO bus 'ag71xx_mdio' rtl8366s switch: unknown chip id (ffff) rtl8366s switch: chip detection failed, err=-19 Force using GPIOs to manage the switch by dropping the "mii-bus" DTS definition, which works for both built-in and loadable switch drivers. Fixes: 6e0f0eae5b ("ath79: use rtl8366s and rtl8366_smi as a module") Fixes: 575ec7a4b1 ("ath79: use rtl8366rb as a module") Tested-by: Tony Ambardar <itugrok@yahoo.com> # WZR-HP-G300NH (RTL8366S) Signed-off-by: Tony Ambardar <itugrok@yahoo.com>
Diffstat (limited to 'target/linux/ath79')
-rw-r--r--target/linux/ath79/dts/ar9132_buffalo_wzr-hp-g300nh.dtsi1
1 files changed, 0 insertions, 1 deletions
diff --git a/target/linux/ath79/dts/ar9132_buffalo_wzr-hp-g300nh.dtsi b/target/linux/ath79/dts/ar9132_buffalo_wzr-hp-g300nh.dtsi
index 4443ba583e..ac3af13457 100644
--- a/target/linux/ath79/dts/ar9132_buffalo_wzr-hp-g300nh.dtsi
+++ b/target/linux/ath79/dts/ar9132_buffalo_wzr-hp-g300nh.dtsi
@@ -178,7 +178,6 @@
gpio-sda = <&gpio 19 GPIO_ACTIVE_HIGH>;
gpio-sck = <&gpio 20 GPIO_ACTIVE_HIGH>;
- mii-bus = <&mdio0>;
mdio-bus {
status = "okay";