TI's J722S SoC has one instance of a Gen3 Single-Lane PCIe controller.
The controller on J722S SoC is similar to the one present on TI's AM64
SoC, with the difference being that the controller on AM64 SoC supports
up to Gen2 link speed while the one on J722S SoC supports Gen3 link speed.
Update the bindings with a new compatible for J722S SoC.
Technical Reference Manual of J722S SoC: https://www.ti.com/lit/zip/sprujb3
Signed-off-by: Siddharth Vadapalli <[email protected]>
---
Hello,
This patch is based on linux-next tagged next-20240124.
v2:
https://lore.kernel.org/r/[email protected]/
Changes since v2:
- Added fallback compatible for "ti,j722s-pcie-host" as
"ti,j721e-pcie-host" based on Conor's suggestion at:
https://lore.kernel.org/r/20240122-getting-drippy-bb22a0634092@spud/#t
v1:
https://lore.kernel.org/r/[email protected]/
Changes since v1:
- Dropped patches 1/3 and 2/3 of the v1 series as discussed in the v1
thread.
- Updated patch 3/3 which is the v1 for this patch by dropping the checks
for the "num-lanes" property and "max-link-speed" property since the PCI
driver already validates the "num-lanes" property.
Regards,
Siddharth.
Documentation/devicetree/bindings/pci/ti,j721e-pci-host.yaml | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/Documentation/devicetree/bindings/pci/ti,j721e-pci-host.yaml b/Documentation/devicetree/bindings/pci/ti,j721e-pci-host.yaml
index b7a534cef24d..ac69deeaf1ee 100644
--- a/Documentation/devicetree/bindings/pci/ti,j721e-pci-host.yaml
+++ b/Documentation/devicetree/bindings/pci/ti,j721e-pci-host.yaml
@@ -23,6 +23,10 @@ properties:
items:
- const: ti,j7200-pcie-host
- const: ti,j721e-pcie-host
+ - description: PCIe controller in J722S
+ items:
+ - const: ti,j722s-pcie-host
+ - const: ti,j721e-pcie-host
reg:
maxItems: 4
--
2.34.1
On Wed, Jan 24, 2024 at 05:59:36PM +0530, Siddharth Vadapalli wrote:
> TI's J722S SoC has one instance of a Gen3 Single-Lane PCIe controller.
> The controller on J722S SoC is similar to the one present on TI's AM64
> SoC, with the difference being that the controller on AM64 SoC supports
> up to Gen2 link speed while the one on J722S SoC supports Gen3 link speed.
>
> Update the bindings with a new compatible for J722S SoC.
>
> Technical Reference Manual of J722S SoC: https://www.ti.com/lit/zip/sprujb3
>
> Signed-off-by: Siddharth Vadapalli <[email protected]>
Acked-by: Conor Dooley <[email protected]>
Cheers,
Conor.
> ---
>
> Hello,
>
> This patch is based on linux-next tagged next-20240124.
>
> v2:
> https://lore.kernel.org/r/[email protected]/
> Changes since v2:
> - Added fallback compatible for "ti,j722s-pcie-host" as
> "ti,j721e-pcie-host" based on Conor's suggestion at:
> https://lore.kernel.org/r/20240122-getting-drippy-bb22a0634092@spud/#t
>
> v1:
> https://lore.kernel.org/r/[email protected]/
> Changes since v1:
> - Dropped patches 1/3 and 2/3 of the v1 series as discussed in the v1
> thread.
> - Updated patch 3/3 which is the v1 for this patch by dropping the checks
> for the "num-lanes" property and "max-link-speed" property since the PCI
> driver already validates the "num-lanes" property.
>
> Regards,
> Siddharth.
>
> Documentation/devicetree/bindings/pci/ti,j721e-pci-host.yaml | 4 ++++
> 1 file changed, 4 insertions(+)
>
> diff --git a/Documentation/devicetree/bindings/pci/ti,j721e-pci-host.yaml b/Documentation/devicetree/bindings/pci/ti,j721e-pci-host.yaml
> index b7a534cef24d..ac69deeaf1ee 100644
> --- a/Documentation/devicetree/bindings/pci/ti,j721e-pci-host.yaml
> +++ b/Documentation/devicetree/bindings/pci/ti,j721e-pci-host.yaml
> @@ -23,6 +23,10 @@ properties:
> items:
> - const: ti,j7200-pcie-host
> - const: ti,j721e-pcie-host
> + - description: PCIe controller in J722S
> + items:
> + - const: ti,j722s-pcie-host
> + - const: ti,j721e-pcie-host
>
> reg:
> maxItems: 4
> --
> 2.34.1
>
On 24/01/24 21:40, Conor Dooley wrote:
> On Wed, Jan 24, 2024 at 05:59:36PM +0530, Siddharth Vadapalli wrote:
>> TI's J722S SoC has one instance of a Gen3 Single-Lane PCIe controller.
>> The controller on J722S SoC is similar to the one present on TI's AM64
>> SoC, with the difference being that the controller on AM64 SoC supports
>> up to Gen2 link speed while the one on J722S SoC supports Gen3 link speed.
>>
>> Update the bindings with a new compatible for J722S SoC.
>>
>> Technical Reference Manual of J722S SoC: https://www.ti.com/lit/zip/sprujb3
>>
>> Signed-off-by: Siddharth Vadapalli <[email protected]>
>
> Acked-by: Conor Dooley <[email protected]>
Bjorn, Rob,
Could you please merge this patch? This patch applies cleanly on the latest
linux-next tagged next-20240213.
>
> Cheers,
> Conor.
>
>> ---
>>
>> Hello,
>>
>> This patch is based on linux-next tagged next-20240124.
>>
>> v2:
>> https://lore.kernel.org/r/[email protected]/
>> Changes since v2:
>> - Added fallback compatible for "ti,j722s-pcie-host" as
>> "ti,j721e-pcie-host" based on Conor's suggestion at:
>> https://lore.kernel.org/r/20240122-getting-drippy-bb22a0634092@spud/#t
>>
>> v1:
>> https://lore.kernel.org/r/[email protected]/
>> Changes since v1:
>> - Dropped patches 1/3 and 2/3 of the v1 series as discussed in the v1
>> thread.
>> - Updated patch 3/3 which is the v1 for this patch by dropping the checks
>> for the "num-lanes" property and "max-link-speed" property since the PCI
>> driver already validates the "num-lanes" property.
>>
>> Regards,
>> Siddharth.
>>
>> Documentation/devicetree/bindings/pci/ti,j721e-pci-host.yaml | 4 ++++
>> 1 file changed, 4 insertions(+)
>>
>> diff --git a/Documentation/devicetree/bindings/pci/ti,j721e-pci-host.yaml b/Documentation/devicetree/bindings/pci/ti,j721e-pci-host.yaml
>> index b7a534cef24d..ac69deeaf1ee 100644
>> --- a/Documentation/devicetree/bindings/pci/ti,j721e-pci-host.yaml
>> +++ b/Documentation/devicetree/bindings/pci/ti,j721e-pci-host.yaml
>> @@ -23,6 +23,10 @@ properties:
>> items:
>> - const: ti,j7200-pcie-host
>> - const: ti,j721e-pcie-host
>> + - description: PCIe controller in J722S
>> + items:
>> + - const: ti,j722s-pcie-host
>> + - const: ti,j721e-pcie-host
>>
>> reg:
>> maxItems: 4
>> --
>> 2.34.1
>>
--
Regards,
Siddharth.