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

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Date:   Wed, 22 Feb 2023 14:41:43 +0000
From:   Christophe Leroy <christophe.leroy@...roup.eu>
To:     Pali Rohár <pali@...nel.org>
CC:     Michael Ellerman <mpe@...erman.id.au>,
        Nicholas Piggin <npiggin@...il.com>,
        Scott Wood <oss@...error.net>, Sinan Akman <sinan@...teme.com>,
        Martin Kennedy <hurricos@...il.com>,
        "linuxppc-dev@...ts.ozlabs.org" <linuxppc-dev@...ts.ozlabs.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v3 0/8] powerpc/85xx: p2020: Create one unified machine
 description



Le 22/02/2023 à 08:52, Pali Rohár a écrit :
> On Wednesday 22 February 2023 06:39:07 Christophe Leroy wrote:
>> Hi,
>>
>> Le 21/02/2023 à 23:07, Pali Rohár a écrit :
>>> Hello Christophe! Could you look at this v3 series?
>>> I addressed those small issues and hopefully it should be ready.
>>> It would be great to have this finally in v6.3 release.
>>
>> I started looking at your series and I will try to provide a feedback
>> within a few days.
>>
>> By the way I see that Paul Gortmaker has started removal of several 85xx
>> boards. Should we first take Paul's removal series then see what remains
>> before applying yours ? That would make your series even more efficient.
> 
> I have already replied to Paul patch series. The important thing is that
> we are touching different files, so patch series should be independent.

Ok.

Because exemples are always better than long writings, I have prepared a 
v4 of your series and will send it out shortly.

If that approach is ok for you, feel free to restart from there.

Christophe

> 
>> Christoph
>>
>>>
>>> On Saturday 18 February 2023 12:13:57 Pali Rohár 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 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
>>>>