linux-kernel - [PATCH v4 00/17] powerpc/85xx: p2020: Create one unified machine description

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Date:   Wed, 22 Feb 2023 15:42:47 +0100
From:   Christophe Leroy <christophe.leroy@...roup.eu>
To:     Pali Rohár <pali@...nel.org>,
        Michael Ellerman <mpe@...erman.id.au>,
        Nicholas Piggin <npiggin@...il.com>
Cc:     Christophe Leroy <christophe.leroy@...roup.eu>,
        linux-kernel@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org
Subject: [PATCH v4 00/17] 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 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 (9):
  powerpc/fsl_uli1575: Misc cleanup
  powerpc/85xx: Rename setup_arch and pic_init on p1023
  powerpc/85xx: Remove DBG() macro
  powerpc/85xx: Remove #ifdefs CONFIG_PCI in mpc85xx_ds
  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 (8):
  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: p2020: Move i8259 code into own function
  powerpc/85xx: mpc85xx_ds: Move PCI 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/include/asm/ppc-pci.h         |   2 +
 arch/powerpc/platforms/85xx/Kconfig        |  22 +++-
 arch/powerpc/platforms/85xx/Makefile       |   5 +-
 arch/powerpc/platforms/85xx/mpc85xx.h      |  12 ++
 arch/powerpc/platforms/85xx/mpc85xx_8259.c |  78 ++++++++++++
 arch/powerpc/platforms/85xx/mpc85xx_ds.c   | 133 ++-------------------
 arch/powerpc/platforms/85xx/mpc85xx_mds.c  |   7 --
 arch/powerpc/platforms/85xx/mpc85xx_rdb.c  |  79 ++----------
 arch/powerpc/platforms/85xx/mpc85xx_uli.c  |  64 ++++++++++
 arch/powerpc/platforms/85xx/p1023_rdb.c    |   8 +-
 arch/powerpc/platforms/85xx/p2020.c        |  95 +++++++++++++++
 arch/powerpc/platforms/fsl_uli1575.c       |   6 +-
 13 files changed, 301 insertions(+), 212 deletions(-)
 create mode 100644 arch/powerpc/platforms/85xx/mpc85xx_8259.c
 create mode 100644 arch/powerpc/platforms/85xx/mpc85xx_uli.c
 create mode 100644 arch/powerpc/platforms/85xx/p2020.c

-- 
2.39.1