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

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Message-ID: <20230222182232.uiiwy5pd5n5xc5kl@pali>
Date:   Wed, 22 Feb 2023 19:22:32 +0100
From:   Pali Rohár <pali@...nel.org>
To:     Christophe Leroy <christophe.leroy@...roup.eu>
Cc:     Michael Ellerman <mpe@...erman.id.au>,
        Nicholas Piggin <npiggin@...il.com>,
        linux-kernel@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org
Subject: Re: [PATCH v4 00/17] powerpc/85xx: p2020: Create one unified machine
 description

On Wednesday 22 February 2023 15:42:47 Christophe Leroy wrote:
> 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 looks good. I'm happy with them. You can add my:

Reviewed-by: Pali Rohár <pali@...nel.org>

> 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
>