2023-03-16 04:37:31

by Guo Samin

[permalink] [raw]
Subject: [PATCH v7 3/6] dt-bindings: net: snps,dwmac: Add 'ahb' reset/reset-name

According to:
stmmac_platform.c: stmmac_probe_config_dt
stmmac_main.c: stmmac_dvr_probe

dwmac controller may require one (stmmaceth) or two (stmmaceth+ahb)
reset signals, and the maxItems of resets/reset-names is going to be 2.

The gmac of Starfive Jh7110 SOC must have two resets.
it uses snps,dwmac-5.20 IP.

Signed-off-by: Samin Guo <[email protected]>
Tested-by: Tommaso Merciai <[email protected]>
---
.../devicetree/bindings/net/snps,dwmac.yaml | 12 ++++++++----
1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/Documentation/devicetree/bindings/net/snps,dwmac.yaml b/Documentation/devicetree/bindings/net/snps,dwmac.yaml
index 01b056ab71f7..e4519cf722ab 100644
--- a/Documentation/devicetree/bindings/net/snps,dwmac.yaml
+++ b/Documentation/devicetree/bindings/net/snps,dwmac.yaml
@@ -133,12 +133,16 @@ properties:
- ptp_ref

resets:
- maxItems: 1
- description:
- MAC Reset signal.
+ minItems: 1
+ items:
+ - description: GMAC stmmaceth reset
+ - description: AHB reset

reset-names:
- const: stmmaceth
+ minItems: 1
+ items:
+ - const: stmmaceth
+ - const: ahb

power-domains:
maxItems: 1
--
2.17.1



2023-03-16 07:24:58

by Krzysztof Kozlowski

[permalink] [raw]
Subject: Re: [PATCH v7 3/6] dt-bindings: net: snps,dwmac: Add 'ahb' reset/reset-name

On 16/03/2023 05:37, Samin Guo wrote:
> According to:
> stmmac_platform.c: stmmac_probe_config_dt
> stmmac_main.c: stmmac_dvr_probe
>
> dwmac controller may require one (stmmaceth) or two (stmmaceth+ahb)
> reset signals, and the maxItems of resets/reset-names is going to be 2.
>
> The gmac of Starfive Jh7110 SOC must have two resets.
> it uses snps,dwmac-5.20 IP.
>
> Signed-off-by: Samin Guo <[email protected]>
> Tested-by: Tommaso Merciai <[email protected]>

How do you test the bindings on hardware?

Reviewed-by: Krzysztof Kozlowski <[email protected]>

Best regards,
Krzysztof


2023-03-16 07:37:14

by Guo Samin

[permalink] [raw]
Subject: Re: [PATCH v7 3/6] dt-bindings: net: snps,dwmac: Add 'ahb' reset/reset-name




Re: [PATCH v7 3/6] dt-bindings: net: snps,dwmac: Add 'ahb' reset/reset-name
From: Krzysztof Kozlowski <[email protected]>
to: Samin Guo <[email protected]>, [email protected], [email protected], [email protected], [email protected]
data : 2023/3/16

> On 16/03/2023 05:37, Samin Guo wrote:
>> According to:
>> stmmac_platform.c: stmmac_probe_config_dt
>> stmmac_main.c: stmmac_dvr_probe
>>
>> dwmac controller may require one (stmmaceth) or two (stmmaceth+ahb)
>> reset signals, and the maxItems of resets/reset-names is going to be 2.
>>
>> The gmac of Starfive Jh7110 SOC must have two resets.
>> it uses snps,dwmac-5.20 IP.
>>
>> Signed-off-by: Samin Guo <[email protected]>
>> Tested-by: Tommaso Merciai <[email protected]>
>
> How do you test the bindings on hardware?
>
> Reviewed-by: Krzysztof Kozlowski <[email protected]>
>
> Best regards,
> Krzysztof
> Hi, Krzysztof

Thanks a lot.

Sorry, my fault. Tomaso tested gmac based on v5 version. I should only add Tested-by to the driver and dts patches, but not to dt-bindings.
I will fix it in the next version.

Best regards,
Samin