[RFC PATCH 5/5] arm: dts: Introduce AM62D2-EVM dtbs

Paresh Bhagat p-bhagat at ti.com
Mon Sep 8 17:31:21 CEST 2025


Hi Andrew,


On 02/09/25 19:15, Andrew Davis wrote:
> 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


Thanks for the review. Will correct this.
>
>> +        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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