Re: [PATCH v6 2/8] arm64: dts: ti: k3-j721s2-main: Add SERDES and WIZ device tree node

From: Ravi Gunasekaran
Date: Tue Nov 22 2022 - 01:26:59 EST




On 19/11/22 9:39 am, Matt Ranostay wrote:
> Add dt node for the single instance of WIZ (SERDES wrapper) and
> SERDES module shared by PCIe, eDP and USB.
>
> Signed-off-by: Matt Ranostay <mranostay@xxxxxx>
> ---
> arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi | 54 ++++++++++++++++++++++
> 1 file changed, 54 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi b/arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi
> index b4869bff4f22..adbb172658b9 100644
> --- a/arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi
> +++ b/arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi
> @@ -5,6 +5,17 @@
> * Copyright (C) 2021 Texas Instruments Incorporated - https://www.ti.com/
> */
>
> +#include <dt-bindings/phy/phy-cadence.h>
> +#include <dt-bindings/phy/phy-ti.h>
> +
> +/ {
> + serdes_refclk: clock-cmnrefclk {
> + #clock-cells = <0>;
> + compatible = "fixed-clock";
> + clock-frequency = <0>;
> + };
> +};
> +
> &cbass_main {
> msmc_ram: sram@70000000 {
> compatible = "mmio-sram";
> @@ -38,6 +49,13 @@ usb_serdes_mux: mux-controller-0 {
> #mux-control-cells = <1>;
> mux-reg-masks = <0x0 0x8000000>; /* USB0 to SERDES0 lane 1/3 mux */
> };
> +
> + serdes_ln_ctrl: mux-controller-80 {
> + compatible = "mmio-mux";
> + #mux-control-cells = <1>;
> + mux-reg-masks = <0x80 0x3>, <0x84 0x3>, /* SERDES0 lane0/1 select */
> + <0x88 0x3>, <0x8c 0x3>; /* SERDES0 lane2/3 select */
> + };
> };
>
> gic500: interrupt-controller@1800000 {
> @@ -787,6 +805,42 @@ usb0: usb@6000000 {
> };
> };
>
> + serdes_wiz0: wiz@5060000 {
> + compatible = "ti,am64-wiz-10g";

Using compatible "ti,am64-wiz-10g" may cause issues as the wiz_data->type plays a role in serdes configuration
Please relook into this

> + #address-cells = <1>;
> + #size-cells = <1>;
> + power-domains = <&k3_pds 365 TI_SCI_PD_EXCLUSIVE>;
> + clocks = <&k3_clks 365 0>, <&k3_clks 365 3>, <&serdes_refclk>;
> + clock-names = "fck", "core_ref_clk", "ext_ref_clk";
> + num-lanes = <4>;
> + #reset-cells = <1>;
> + #clock-cells = <1>;
> + ranges = <0x5060000 0x0 0x5060000 0x10000>;
> +
> + assigned-clocks = <&k3_clks 365 3>;
> + assigned-clock-parents = <&k3_clks 365 7>;
> +
> + serdes0: serdes@5060000 {
> + compatible = "ti,j721e-serdes-10g";
> + reg = <0x05060000 0x00010000>;
> + reg-names = "torrent_phy";
> + resets = <&serdes_wiz0 0>;
> + reset-names = "torrent_reset";
> + clocks = <&serdes_wiz0 TI_WIZ_PLL0_REFCLK>,
> + <&serdes_wiz0 TI_WIZ_PHY_EN_REFCLK>;
> + clock-names = "refclk", "phy_en_refclk";
> + assigned-clocks = <&serdes_wiz0 TI_WIZ_PLL0_REFCLK>,
> + <&serdes_wiz0 TI_WIZ_PLL1_REFCLK>,
> + <&serdes_wiz0 TI_WIZ_REFCLK_DIG>;
> + assigned-clock-parents = <&k3_clks 365 3>,
> + <&k3_clks 365 3>,
> + <&k3_clks 365 3>;
> + #address-cells = <1>;
> + #size-cells = <0>;
> + #clock-cells = <1>;
> + };
> + };
> +
> main_mcan0: can@2701000 {
> compatible = "bosch,m_can";
> reg = <0x00 0x02701000 0x00 0x200>,

--
Regards,
Ravi