[RFC PATCH 13/15] arm: dts: Introduce J722S U-Boot dts files

[Andrew Davis]

On 4/4/24 4:00 AM, Jayesh Choudhary wrote:
> Include the uboot device tree files needed to boot the board.
> 
> Co-developed-by: Vaishnav Achath <vaishnav.a at ti.com>
> Signed-off-by: Vaishnav Achath <vaishnav.a at ti.com>
> Signed-off-by: Jayesh Choudhary <j-choudhary at ti.com>
> ---
>   arch/arm/dts/Makefile                      |    2 +
>   arch/arm/dts/k3-j722s-binman.dtsi          |  171 ++
>   arch/arm/dts/k3-j722s-ddr-lp4-50-3733.dtsi | 2795 ++++++++++++++++++++
>   arch/arm/dts/k3-j722s-evm-u-boot.dtsi      |   36 +
>   arch/arm/dts/k3-j722s-r5-evm.dts           |   82 +
>   5 files changed, 3086 insertions(+)
>   create mode 100644 arch/arm/dts/k3-j722s-binman.dtsi
>   create mode 100644 arch/arm/dts/k3-j722s-ddr-lp4-50-3733.dtsi
>   create mode 100644 arch/arm/dts/k3-j722s-evm-u-boot.dtsi
>   create mode 100644 arch/arm/dts/k3-j722s-r5-evm.dts
> 

[...]

> diff --git a/arch/arm/dts/k3-j722s-evm-u-boot.dtsi b/arch/arm/dts/k3-j722s-evm-u-boot.dtsi
> new file mode 100644
> index 0000000000..056ef08455
> --- /dev/null
> +++ b/arch/arm/dts/k3-j722s-evm-u-boot.dtsi
> @@ -0,0 +1,36 @@
> +// SPDX-License-Identifier: GPL-2.0
> +/*
> + * Common J722S EVM dts file for SPLs
> + * Copyright (C) 2024 Texas Instruments Incorporated - https://www.ti.com/
> + */
> +
> +#include "k3-j722s-binman.dtsi"
> +
> +/ {
> +	chosen {
> +		stdout-path = "serial2:115200n8";
> +		tick-timer = &main_timer0;
> +	};
> +};
> +
> +&main_pktdma {
> +	reg = <0x00 0x485c0000 0x00 0x000100>,
> +	      <0x00 0x4a800000 0x00 0x020000>,
> +	      <0x00 0x4aa00000 0x00 0x040000>,
> +	      <0x00 0x4b800000 0x00 0x400000>,
> +	      <0x00 0x485e0000 0x00 0x020000>,
> +	      <0x00 0x484a0000 0x00 0x004000>,
> +	      <0x00 0x484c0000 0x00 0x002000>,
> +	      <0x00 0x48430000 0x00 0x004000>;
> +	reg-names = "gcfg", "rchanrt", "tchanrt", "ringrt",
> +		    "cfg", "tchan", "rchan", "rflow";

Is this needed? Do we still not have the correct regs in
upstream kernel?

> +};
> +
> +&dmsc {
> +	bootph-pre-ram;
> +
> +	k3_sysreset: sysreset-controller {
> +		compatible = "ti,sci-sysreset";
> +		bootph-pre-ram;

This node won't be needed soon either[0]. Should mean an
almost empty -u-boot.dtsi file, which should be the goal.

Andrew

[0] https://lore.kernel.org/all/20240402160908.508974-1-afd@ti.com/

> +	};
> +};
> diff --git a/arch/arm/dts/k3-j722s-r5-evm.dts b/arch/arm/dts/k3-j722s-r5-evm.dts
> new file mode 100644
> index 0000000000..aff83cd5d9
> --- /dev/null
> +++ b/arch/arm/dts/k3-j722s-r5-evm.dts
> @@ -0,0 +1,82 @@
> +// SPDX-License-Identifier: GPL-2.0
> +/*
> + * J722S EVM dts file for R5 SPL
> + * Copyright (C) 2024 Texas Instruments Incorporated - https://www.ti.com/
> + */
> +
> +#include "k3-j722s-evm.dts"
> +#include "k3-j722s-evm-u-boot.dtsi"
> +
> +#include "k3-j722s-ddr-lp4-50-3733.dtsi"
> +#include "k3-am62a-ddr.dtsi"
> +
> +/ {
> +	aliases {
> +		remoteproc0 = &sysctrler;
> +		remoteproc1 = &a53_0;
> +		serial0 = &wkup_uart0;
> +		serial2 = &main_uart0;
> +	};
> +
> +	a53_0: a53 at 0 {
> +		compatible = "ti,am654-rproc";
> +		reg = <0x00 0x00a90000 0x00 0x10>;
> +		power-domains = <&k3_pds 61 TI_SCI_PD_EXCLUSIVE>,
> +			<&k3_pds 135 TI_SCI_PD_EXCLUSIVE>,
> +			<&k3_pds 166 TI_SCI_PD_EXCLUSIVE>;
> +		resets = <&k3_reset 135 0>;
> +		clocks = <&k3_clks 61 0>;
> +		assigned-clocks = <&k3_clks 61 0>, <&k3_clks 135 0>;
> +		assigned-clock-parents = <&k3_clks 61 2>;
> +		assigned-clock-rates = <200000000>, <1200000000>;
> +		ti,sci = <&dmsc>;
> +		ti,sci-proc-id = <32>;
> +		ti,sci-host-id = <10>;
> +		bootph-all;
> +	};
> +
> +	dm_tifs: dm-tifs {
> +		compatible = "ti,j721e-dm-sci";
> +		ti,host-id = <36>;
> +		ti,secure-host;
> +		mbox-names = "rx", "tx";
> +		mboxes= <&secure_proxy_main 22>,
> +			<&secure_proxy_main 23>;
> +		bootph-all;
> +	};
> +};
> +
> +&dmsc {
> +	mboxes= <&secure_proxy_main 0>,
> +		<&secure_proxy_main 1>,
> +		<&secure_proxy_main 0>;
> +	mbox-names = "rx", "tx", "notify";
> +	ti,host-id = <35>;
> +	ti,secure-host;
> +};
> +
> +&cbass_main {
> +	sa3_secproxy: secproxy at 44880000 {
> +		compatible = "ti,am654-secure-proxy";
> +		#mbox-cells = <1>;
> +		reg = <0x00 0x44880000 0x00 0x20000>,
> +		      <0x00 0x44860000 0x00 0x20000>,
> +		      <0x00 0x43600000 0x00 0x10000>;
> +		reg-names = "rt", "scfg", "target_data";
> +		bootph-all;
> +	};
> +
> +	sysctrler: sysctrler {
> +		compatible = "ti,am654-system-controller";
> +		mboxes= <&secure_proxy_main 1>,
> +			<&secure_proxy_main 0>,
> +			<&sa3_secproxy 0>;
> +		mbox-names = "tx", "rx", "boot_notify";
> +		bootph-all;
> +	};
> +};
> +
> +/* WKUP UART0 is used for DM firmware logs */
> +&wkup_uart0 {
> +	status = "okay";
> +};