Add amdtool

[aronowski]

No description provided.

[m-iwanicki]

Let's wait for amdtool before my re-review

[m-iwanicki]

Format commit msg correctly:

recipes-bsp: coreboot-utils: amdtool_git.bb: add amdtool
+
recipes-bsp: coreboot-utils: files: coreboot-amdtool.patch: add patch
recipes-bsp: packagegroups: packagegroup-coreboot-utils.bb: add amdtool
.codespellrc: exclude coreboot-amdtool.patch, so that the change
https://review.coreboot.org/q/I34405897d0f5670038e7923f3680a28090d92821
is used as-is, without reformatting.

Signed-off-by: Kamil Aronowski <[email protected]>

There needs to be empty line between header and body.
Also reword it, no need to mention every file you added.
Maybe:

recipes-bsp: coreboot-utils: add amdtool recipe

recipes-bsp: packagegroup-coreboot-utils: add amdtool
.codespellrc: exclude coreboot-amdtool.patch so pre-commit
doesn't try to fix `.patch` file

[aronowski]

Current issues addressed, commit message fixed.

[m-iwanicki]

On QEMU:

bash-5.2# amdtool
Not an AMD southbridge.
bash-5.2# amdtool -h
usage: amdtool [-vh?gicspGlMAa]

   -v | --version:                   print the version
   -h | --help:                      print this help

   -s | --spi:                       dump southbridge spi and bios_cntrl registers
   -g | --gpio:                      dump southbridge GPIO registers
   -G | --gpio-diffs:                show GPIO differences from defaults
   -i | --irq-routing                dump IRQ routing registers
   -l | --lpc:                       dump southbridge LPC/eSPI Interface registers

   -c | --cpu:                       dump CPU information and features

   -M | --msrs:                      dump CPU MSRs
   -A | --acpimmio:                  dump southbridge ACPI MMIO registers
   -p | --psb:                       dump Platform Secure Boot state
   -a | --all:                       dump all known (safe) registers

bash-5.2# amdtool -v
amdtool v0.1 -- Copyright (C) 2024 3mdeb

This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, version 2 of the License.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

On PC Engines APU6:

bash-5.2# amdtool
CPU: ID 0x730f01, Processor Type 0x0, Family 0x16, Model 0x30, Stepping 0x1
Northbridge: 1022:1566 (unknown)
Southbridge SMBus: 1022:780b rev 42 (FCH SMBus Controller)
Southbridge LPC: 1022:780e rev 11 (FCH LPC Bridge)

bash-5.2# amdtool -c
(...)
CPU brand string: AMD GX-412TC SOC

============= AMD CPU features =============
SVM supported             : YES
SKINIT supported          : YES
====================================================
(...)