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[v2,0/3] arm64: dts: ti: Add USB support for J722S EVM

Message ID 20240513114443.16350-1-r-gunasekaran@ti.com
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Series arm64: dts: ti: Add USB support for J722S EVM | expand

Message

Ravi Gunasekaran May 13, 2024, 11:44 a.m. UTC 
J722S has two USB instances. This series enables USB support for
both instances.

Change log:
----------
Changes since v1:
----------------
* Introduced k3-j722s-main.dtsi newly to add the main domain
  peripherals that are present additionally in J722S as suggested by
  Andrew Davis

* Used generic node names as suggested by Roger Quadros

* Removed the aliases for usb as suggested by Rob Herring

v1: https://lore.kernel.org/all/20240429120932.11456-1-r-gunasekaran@ti.com/

Ravi Gunasekaran (3):
  arm64: dts: ti: k3-j722s-main: Add support for SERDES0
  arm64: dts: ti: k3-j722s-main: Redefine USB1 node description
  arm64: dts: ti: k3-j722s-evm: Update USB0 and USB1

 arch/arm64/boot/dts/ti/k3-j722s-evm.dts   |  55 ++++++++++++
 arch/arm64/boot/dts/ti/k3-j722s-main.dtsi | 103 ++++++++++++++++++++++
 arch/arm64/boot/dts/ti/k3-j722s.dtsi      |   5 ++
 arch/arm64/boot/dts/ti/k3-serdes.h        |   7 ++
 4 files changed, 170 insertions(+)
 create mode 100644 arch/arm64/boot/dts/ti/k3-j722s-main.dtsi

Comments

Ravi Gunasekaran May 13, 2024, 11:49 a.m. UTC | #1 
Roger,

On 5/13/24 5:14 PM, Ravi Gunasekaran wrote:
> AM62P's DT source files are reused for J722S inorder to
> avoid duplication of nodes. But J722S has additional
> peripherals that are not present in AM62P.
> 
> Introduce a -main.dtsi to define such additional main
> domain peripherals and define the SERDES0 node.
> 
> Signed-off-by: Ravi Gunasekaran <r-gunasekaran@ti.com>
> ---
> Changes since v1:
> ----------------
> * Newly introduced k3-j722s-main.dtsi to add main domain
>   peripherals that are additionally present in J722S
> 
> * Used generic node names - renamed "clock-cmnrefclk" to "clk-0",
>   "wiz@f000000" to "phy@f000000"
> 

[...]

> +
> +&cbass_main {
> +	serdes_wiz0: phy@f000000 {
> +		compatible = "ti,am64-wiz-10g";
> +		ranges = <0x0f000000 0x0 0x0f000000 0x00010000>;
> +		#address-cells = <1>;
> +		#size-cells = <1>;
> +		power-domains = <&k3_pds 279 TI_SCI_PD_EXCLUSIVE>;
> +		clocks = <&k3_clks 279 0>, <&k3_clks 279 1>, <&serdes_refclk>;
> +		clock-names = "fck", "core_ref_clk", "ext_ref_clk";
> +		num-lanes = <1>;
> +		#reset-cells = <1>;
> +		#clock-cells = <1>;
> +
> +		assigned-clocks = <&k3_clks 279 1>;
> +		assigned-clock-parents = <&k3_clks 279 5>;
> +
> +		serdes0: serdes@f000000 {

[1] expects the node name to be "serdes". So I could not rename this node to "phy"
as discussed in the v1 series.

[1] - https://elixir.bootlin.com/linux/latest/source/drivers/phy/ti/phy-j721e-wiz.c#L1474

> +			compatible = "ti,j721e-serdes-10g";


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