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AM6548: How to build the latest Linux processor SDK 7.3

Part Number: AM6548

Our customer wants to build the latest Linux processor SDK 7.3 by following the link below.

software-dl.ti.com/.../Overview_Building_the_SDK.html

It is required to download the toolchain, but the source of the toolchain is not clear.

software-dl.ti.com/.../Overview_Building_the_SDK.html
Download the toolchain compilers from the links provided in the SDK release page. Keep the extracted toolchains in the $HOME directory of host Linux machine. Use $HOME directory as the PATH_TO_TOOLCHAIN in following command.

software-dl.ti.com/.../Release_Specific_Release_Notes.html
Compiler Information: arm-none-linux-gnueabihf-gcc (GNU Toolchain for the A-profile Architecture 9.2-2019.12 (arm-9.10)) 9.2.1 20191025

software-dl.ti.com/.../GCC_ToolChain.html
The name of the toolchain binaries have also been updated from older versions of the SDK. Current SDK ARMv8 toolchains use a prefix of “aarch64-linux-gnu-” For example, the new toolchain’s gcc compiler is named aarch64-linux-gnu-gcc.

Are the links for the required toolchains below?

AArch32 target with hard float (arm-linux-none-gnueabihf)
gcc-arm-9.2-2019.12-x86_64-arm-none-linux-gnueabihf.tar.xz
developer.arm.com/.../gcc-arm-9.2-2019.12-x86_64-arm-none-linux-gnueabihf.tar.xz

AArch64 GNU/Linux target (aarch64-none-linux-gnu)
gcc-arm-9.2-2019.12-x86_64-aarch64-none-linux-gnu.tar.xz
developer.arm.com/.../gcc-arm-9.2-2019.12-x86_64-aarch64-none-linux-gnu.tar.xz

The links can be found below.

GNU Toolchain for the A-profile Architecture
Version 9.2-2019.12
developer.arm.com/.../9-2-2019-12

Best regards,

Daisuke