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| author | Tony Ambardar <itugrok@yahoo.com> | 2023-01-16 03:18:00 -0800 |
|---|---|---|
| committer | Hauke Mehrtens <hauke@hauke-m.de> | 2023-04-23 18:57:29 +0200 |
| commit | 70000ab509a0730e842c4b56dd1a505dd53deaa3 (patch) | |
| tree | c3fc1f7fc92a8927f24bd5268b0dc0d6a3bba596 /target | |
| parent | f3bb1eea32c728470563e7e0df8bd905a913e074 (diff) | |
| download | upstream-70000ab509a0730e842c4b56dd1a505dd53deaa3.tar.gz upstream-70000ab509a0730e842c4b56dd1a505dd53deaa3.tar.bz2 upstream-70000ab509a0730e842c4b56dd1a505dd53deaa3.zip | |
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')
| -rw-r--r-- | target/linux/ath79/dts/ar9132_buffalo_wzr-hp-g300nh.dtsi | 1 |
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"; |