linux-kernel - [PATCH v5 00/13] powerpc/85xx: p2020: Create one unified machine description

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Message-Id: <20230408140122.25293-1-pali@kernel.org>
Date:   Sat,  8 Apr 2023 16:01:09 +0200
From:   Pali Rohár <pali@...nel.org>
To:     Michael Ellerman <mpe@...erman.id.au>,
        Christophe Leroy <christophe.leroy@...roup.eu>,
        Nicholas Piggin <npiggin@...il.com>
Cc:     linuxppc-dev@...ts.ozlabs.org, linux-kernel@...r.kernel.org
Subject: [PATCH v5 00/13] 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 which has Freescale P2020 processor.
Kernel during booting correctly detects P2020 and prints:
[    0.000000] Hardware name: Turris 1.1 e500v2 0x80211051 Freescale P2020

This patch series depends on another patch series "powerpc/fsl_uli1575: Cleanups":
https://lore.kernel.org/linuxppc-dev/20230408132151.8902-1-pali@kernel.org/t/#u
(it was split from this one in v5)

Changes in v5:
* Split fsl_uli1575 patches to separate patch series as this one started to be too big.
* Fix commit messages
* Reduce includes
* Rebase on top of powerpc/next (b0bbe5a2915201e3231e788d716d39dc54493b03)
* Test all patches again on CZ.NIC Turris 1.1 board with P2020 processor

Changes in v4:
* Added several preparatory cleanup patchs
* Minimised churn by not duplicating helpers at the first place
* Split main patch in two
* Dropped patchs 1 and 2
* Untested beyond basic build test

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/

Christophe Leroy (6):
  powerpc/85xx: Remove DBG() macro
  powerpc/85xx: mpc85xx_{ds/rdb} compact the call to mpic_alloc()
  powerpc/85xx: mpc85xx_{ds/rdb} replace BUG_ON() by WARN_ON()
  powerpc/85xx: mpc85xx_{ds/rdb} replace prink by pr_xxx macro
  powerpc/85xx: Remove #ifdefs CONFIG_PPC_I8259 in mpc85xx_ds
  powerpc/85xx: Remove #ifdef CONFIG_QUICC_ENGINE in mpc85xx_rdb

Pali Rohár (7):
  powerpc/85xx: p2020: Move all P2020 DS machine descriptions to p2020.c
  powerpc/85xx: p2020: Move all P2020 RDB machine descriptions to
    p2020.c
  powerpc/85xx: mpc85xx_ds: Move i8259 code into own file
  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       |  4 +-
 arch/powerpc/platforms/85xx/mpc85xx.h      |  6 ++
 arch/powerpc/platforms/85xx/mpc85xx_8259.c | 63 ++++++++++++++++
 arch/powerpc/platforms/85xx/mpc85xx_ds.c   | 87 +++-------------------
 arch/powerpc/platforms/85xx/mpc85xx_mds.c  |  7 --
 arch/powerpc/platforms/85xx/mpc85xx_rdb.c  | 63 +++-------------
 arch/powerpc/platforms/85xx/p2020.c        | 81 ++++++++++++++++++++
 9 files changed, 191 insertions(+), 144 deletions(-)
 create mode 100644 arch/powerpc/platforms/85xx/mpc85xx_8259.c
 create mode 100644 arch/powerpc/platforms/85xx/p2020.c

-- 
2.20.1