On 25/10/24 19:27, Geert Uytterhoeven wrote:
> Hi Josua,
>
> On Mon, Feb 19, 2024 at 4:05 PM Josua Mayer <josua@xxxxxxxxxxxxx> wrote:
>> HummingBoard-T features two M.2 connectors labeled "M1" and "M2".
>> The single SerDes lane of the SoC can be routed to either M1 pci-e
>> signals, or M2 usb-3 signals by a gpio-controlled mux.
>>
>> Add overlays for each configuration.
>>
>> Signed-off-by: Josua Mayer <josua@xxxxxxxxxxxxx>
>
> Thanks for your patch, which is now commit bbef42084cc170cb ("arm64:
> dts: ti: hummingboard-t: add overlays for m.2 pci-e and usb-3") in v6.9.
>
>> --- /dev/null
>> +++ b/arch/arm64/boot/dts/ti/k3-am642-hummingboard-t-usb3.dtso
>> @@ -0,0 +1,44 @@
>> +// SPDX-License-Identifier: GPL-2.0+
>> +/*
>> + * Copyright (C) 2023 Josua Mayer <josua@xxxxxxxxxxxxx>
>> + *
>> + * Overlay for SolidRun AM642 HummingBoard-T to enable USB-3.1.
>> + */
>> +
>> +/dts-v1/;
>> +/plugin/;
>> +
>> +#include <dt-bindings/phy/phy.h>
>> +
>> +#include "k3-serdes.h"
>> +
>> +&serdes0 {
>> + #address-cells = <1>;
>> + #size-cells = <0>;
>> +
>> + serdes0_link: phy@0 {
>> + reg = <0>;
>> + cdns,num-lanes = <1>;
>> + cdns,phy-type = <PHY_TYPE_USB3>;
>> + #phy-cells = <0>;
>> + resets = <&serdes_wiz0 1>;
>> + };
>> +};
>> +
>> +&serdes_ln_ctrl {
>> + idle-states = <AM64_SERDES0_LANE0_USB>;
>> +};
>> +
>> +&serdes_mux {
>> + idle-state = <0>;
>> +};
>> +
>> +&usbss0 {
>> + /delete-property/ ti,usb2-only;
>
> /delete-property/ (and /delete-node/) to delete something in the base DTS
> does not work.
Geert,
Thanks for the catching
Joshua,
This overlay is pretty useless in light of above issue. I intend to
just drop this file unless you convince me otherwise?
--
Regards
Vignesh
