[RFC PATCH 5/5] arm: dts: Introduce AM62D2-EVM dtbs
Andrew Davis
afd at ti.com
Tue Sep 2 15:45:50 CEST 2025
On 9/2/25 1:07 AM, Paresh Bhagat wrote:
> Introduce the base dts files needed for u-boot or to augment the
> linux dtbs for use in the u-boot-spl and u-boot binaries.
> Support added for HS-SE and HS-FS boot binaries for AM62dx via
> binman.
>
> Signed-off-by: Paresh Bhagat <p-bhagat at ti.com>
> ---
> arch/arm/dts/Makefile | 2 +
> arch/arm/dts/k3-am62d-ddr-1866mhz-32bit.dtsi | 2802 ++++++++++++++++++
> arch/arm/dts/k3-am62d-evm-binman.dtsi | 359 +++
> arch/arm/dts/k3-am62d2-evm-u-boot.dtsi | 14 +
> arch/arm/dts/k3-am62d2-r5-evm.dts | 82 +
> 5 files changed, 3259 insertions(+)
> create mode 100644 arch/arm/dts/k3-am62d-ddr-1866mhz-32bit.dtsi
> create mode 100644 arch/arm/dts/k3-am62d-evm-binman.dtsi
> create mode 100644 arch/arm/dts/k3-am62d2-evm-u-boot.dtsi
> create mode 100644 arch/arm/dts/k3-am62d2-r5-evm.dts
>
> diff --git a/arch/arm/dts/Makefile b/arch/arm/dts/Makefile
> index ff8f1ed1ac0..99c37b9c02a 100644
> --- a/arch/arm/dts/Makefile
> +++ b/arch/arm/dts/Makefile
> @@ -1109,6 +1109,8 @@ dtb-$(CONFIG_SOC_K3_AM62A7) += \
> k3-am62a7-r5-sk.dtb \
> k3-am62a7-r5-phycore-som-2gb.dtb
>
> +dtb-$(CONFIG_SOC_K3_AM62D2) += k3-am62d2-r5-evm.dtb
> +
> dtb-$(CONFIG_SOC_K3_AM62P5) += k3-am62p5-r5-sk.dtb \
> k3-am62p5-verdin-r5.dtb \
> k3-am62p5-verdin-wifi-dev.dtb
[...]
> +&binman {
> + ti-spl_unsigned {
Why do we need these unsigned versions of tispl.bin and u-boot.img if we only support HS?
Andrew
> + insert-template = <&ti_spl_unsigned_template>;
> +
> + fit {
> + images {
> + tifsstub-hs {
> + description = "tifsstub";
> + type = "firmware";
> + arch = "arm32";
> + compression = "none";
> + os = "tifsstub-hs";
> + load = <0x9ca00000>;
> + entry = <0x9ca00000>;
> + blob-ext {
> + filename = "tifsstub.bin_hs";
> + };
> + };
> +
> + tifsstub-fs {
> + description = "tifsstub";
> + type = "firmware";
> + arch = "arm32";
> + compression = "none";
> + os = "tifsstub-fs";
> + load = <0x9ca00000>;
> + entry = <0x9ca00000>;
> + blob-ext {
> + filename = "tifsstub.bin_fs";
> + };
> + };
> +
> + dm {
> + ti-dm {
> + filename = AM62A7_SK_DM;
> + };
> + };
> +
> + fdt-0 {
> + description = "k3-am62d2-evm";
> + type = "flat_dt";
> + arch = "arm";
> + compression = "none";
> + blob {
> + filename = "spl/dts/ti/k3-am62d2-evm.dtb";
> + };
> + };
> + };
> +
> + configurations {
> + default = "conf-0";
> +
> + conf-0 {
> + description = "k3-am62d2-evm";
> + firmware = "atf";
> + loadables = "tee", "dm", "spl",
> + "tifsstub-hs", "tifsstub-fs";
> + fdt = "fdt-0";
> + };
> + };
> + };
> + };
> +};
> +
> +&binman {
> + u-boot_unsigned {
> + insert-template = <&u_boot_unsigned_template>;
> +
> + fit {
> + images {
> + uboot {
> + description = "U-Boot for AM62Dx Board";
> + };
> +
> + fdt-0 {
> + description = "k3-am62d2-evm";
> + type = "flat_dt";
> + arch = "arm";
> + compression = "none";
> + blob {
> + filename = "u-boot.dtb";
> + };
> + hash {
> + algo = "crc32";
> + };
> + };
> + };
> +
> + configurations {
> + default = "conf-0";
> +
> + conf-0 {
> + description = "k3-am62d2-evm";
> + firmware = "uboot";
> + loadables = "uboot";
> + fdt = "fdt-0";
> + };
> + };
> + };
> + };
> +};
> +#endif
> diff --git a/arch/arm/dts/k3-am62d2-evm-u-boot.dtsi b/arch/arm/dts/k3-am62d2-evm-u-boot.dtsi
> new file mode 100644
> index 00000000000..d1b17e8f83f
> --- /dev/null
> +++ b/arch/arm/dts/k3-am62d2-evm-u-boot.dtsi
> @@ -0,0 +1,14 @@
> +// SPDX-License-Identifier: GPL-2.0
> +/*
> + * Common AM62D EVM dts file for SPLs
> + * Copyright (C) 2025 Texas Instruments Incorporated - https://www.ti.com/
> + */
> +
> +#include "k3-am62d-evm-binman.dtsi"
> +
> +/ {
> + chosen {
> + stdout-path = "serial2:115200n8";
> + tick-timer = &main_timer0;
> + };
> +};
> diff --git a/arch/arm/dts/k3-am62d2-r5-evm.dts b/arch/arm/dts/k3-am62d2-r5-evm.dts
> new file mode 100644
> index 00000000000..a3213d00145
> --- /dev/null
> +++ b/arch/arm/dts/k3-am62d2-r5-evm.dts
> @@ -0,0 +1,82 @@
> +// SPDX-License-Identifier: GPL-2.0
> +/*
> + * AM62D2 EVM dts file for R5 SPL
> + * Copyright (C) 2025 Texas Instruments Incorporated - https://www.ti.com/
> + */
> +
> +#include "k3-am62d2-evm.dts"
> +#include "k3-am62d-ddr-1866mhz-32bit.dtsi"
> +#include "k3-am62a-ddr.dtsi"
> +
> +#include "k3-am62d2-evm-u-boot.dtsi"
> +
> +/ {
> + aliases {
> + tick-timer = &main_timer0;
> + remoteproc0 = &sysctrler;
> + remoteproc1 = &a53_0;
> + };
> +
> + 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>, <&k3_clks 135 0>;
> + clock-names = "gtc", "core";
> + 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-pre-ram;
> + };
> +
> + 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-pre-ram;
> + };
> +};
> +
> +&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;
> +};
> +
> +&secure_proxy_sa3 {
> + /* Needed for initial handshake with ROM */
> + status = "okay";
> + bootph-pre-ram;
> +};
> +
> +&cbass_main {
> + sysctrler: sysctrler {
> + compatible = "ti,am654-tisci-rproc-r5";
> + mboxes= <&secure_proxy_main 1>,
> + <&secure_proxy_main 0>,
> + <&secure_proxy_sa3 0>;
> + mbox-names = "tx", "rx", "boot_notify";
> + bootph-pre-ram;
> + };
> +};
> +
> +&main_timer0 {
> + /delete-property/ clocks;
> + /delete-property/ clocks-names;
> + /delete-property/ assigned-clocks;
> + /delete-property/ assigned-clock-parents;
> + clock-frequency = <25000000>;
> + bootph-pre-ram;
> +};
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