linux-kernel - [PATCH v3 0/8] powerpc/85xx: p2020: Create one unified machine description

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Date:   Sat, 18 Feb 2023 12:13:57 +0100
From:   Pali Rohár <pali@...nel.org>
To:     Michael Ellerman <mpe@...erman.id.au>,
        Nicholas Piggin <npiggin@...il.com>,
        Christophe Leroy <christophe.leroy@...roup.eu>,
        Scott Wood <oss@...error.net>, Sinan Akman <sinan@...teme.com>,
        Martin Kennedy <hurricos@...il.com>
Cc:     linuxppc-dev@...ts.ozlabs.org, linux-kernel@...r.kernel.org
Subject: [PATCH v3 0/8] powerpc/85xx: p2020: Create one unified machine description

This patch series unifies all P2020 boards and machine descriptions into
one generic unified P2020 machine description. With this generic machine
description, kernel can boot on any P2020-based board with correct DTS
file.

Tested on CZ.NIC Turris 1.1 board with has Freescale P2020 processor.
Kernel during booting correctly detects P2020 and prints:
[    0.000000] Using Freescale P2020 machine description

Changes in v3:
* Use 'if (IS_ENABLED(CONFIG_PPC_I8259))' instead of '#ifdef CONFIG_PPC_I8259'
* Simplify p2020_probe()
* Patches generated by -M and -C git options

Link to v2: https://lore.kernel.org/linuxppc-dev/20221224211425.14983-1-pali@kernel.org/

Changes in v2:
* Added patch "p2020: Move i8259 code into own function" (separated from the next one)
* Renamed CONFIG_P2020 to CONFIG_PPC_P2020
* Fixed descriptions

Link to v1: https://lore.kernel.org/linuxppc-dev/20220819191557.28116-1-pali@kernel.org/

Pali Rohár (8):
  powerpc/85xx: Mark mpc85xx_rdb_pic_init() as static
  powerpc/85xx: Mark mpc85xx_ds_pic_init() as static
  powerpc/85xx: p2020: Move all P2020 machine descriptions to p2020.c
  powerpc/85xx: p2020: Move i8259 code into own function
  powerpc/85xx: p2020: Unify .setup_arch and .init_IRQ callbacks
  powerpc/85xx: p2020: Define just one machine description
  powerpc/85xx: p2020: Enable boards by new config option
    CONFIG_PPC_P2020
  powerpc: dts: turris1x.dts: Remove "fsl,P2020RDB-PC" compatible string

 arch/powerpc/boot/dts/turris1x.dts            |   2 +-
 arch/powerpc/platforms/85xx/Kconfig           |  22 ++-
 arch/powerpc/platforms/85xx/Makefile          |   1 +
 arch/powerpc/platforms/85xx/mpc85xx_ds.c      |  25 +---
 arch/powerpc/platforms/85xx/mpc85xx_rdb.c     |  46 +-----
 .../platforms/85xx/{mpc85xx_ds.c => p2020.c}  | 135 ++++++------------
 6 files changed, 68 insertions(+), 163 deletions(-)
 copy arch/powerpc/platforms/85xx/{mpc85xx_ds.c => p2020.c} (52%)

-- 
2.20.1