linux-kernel - Re: [PATCH 1/2] ARM: npcm: add CONFIG_ARCH_MULTI

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Date:   Mon, 12 Mar 2018 17:15:58 +0200
From:   Tomer Maimon <tmaimon77@...il.com>
To:     Arnd Bergmann <arnd@...db.de>
Cc:     Brendan Higgins <brendanhiggins@...gle.com>,
        Avi Fishman <avifishman70@...il.com>,
        Patrick Venture <venture@...gle.com>,
        Nancy Yuen <yuenn@...gle.com>,
        Linux ARM <linux-arm-kernel@...ts.infradead.org>,
        OpenBMC Maillist <openbmc@...ts.ozlabs.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 1/2] ARM: npcm: add CONFIG_ARCH_MULTI_V7 dependency

Hi Arnd,

I will send tomorrow new version with some modification we need to do
once we use NPCM7XX and not NPCM750.

Brendan,

Is it O.K.?



On 12 March 2018 at 15:37, Arnd Bergmann <arnd@...db.de> wrote:
> On Mon, Mar 12, 2018 at 2:28 PM, Tomer Maimon <tmaimon77@...il.com> wrote:
>> Hi Brendan,
>>
>> According to the last mail I have with Arnd can you modify the Kconfig
>> as follow:
>>
>> +menuconfig ARCH_NPCM
>> +       bool "Nuvoton NPCM Architecture"
>> +       depends on ARCH_MULTI_V7
>> +       select PINCTRL
>> +
>> +if ARCH_NPCM
>> +
>> +config ARCH_NPCM7XX
>> +       bool "Support for NPCM7xx BMC (Poleg)"
>> +       depends on ARCH_MULTI_V7
>> +       select PINCTRL_NPCM7XX
>> +       select NPCM7XX_TIMER
>> +       select ARCH_REQUIRE_GPIOLIB
>> +       select CACHE_L2X0
>> +       select ARM_GIC
>> +       select HAVE_ARM_TWD if SMP
>> +       select HAVE_ARM_SCU if SMP
>> +       select ARM_ERRATA_764369 if SMP
>> +       select ARM_ERRATA_720789
>> +       select ARM_ERRATA_754322
>> +       select ARM_ERRATA_794072
>> +       select PL310_ERRATA_588369
>> +       select PL310_ERRATA_727915
>> +       select MFD_SYSCON
>> +       help
>> +         General support for NPCM7xx BMC (Poleg).
>> +
>> +         Nuvoton NPCM7xx BMC based on the Cortex A9.
>> +
>> +endif
>
> One more change is needed to avoid a link error without CONFIG_SMP:
>
> diff --git a/arch/arm/mach-npcm/Makefile b/arch/arm/mach-npcm/Makefile
> index c7a1316d27c1..34d51f9f207c 100644
> --- a/arch/arm/mach-npcm/Makefile
> +++ b/arch/arm/mach-npcm/Makefile
> @@ -1,3 +1,4 @@
>  AFLAGS_headsmp.o               += -march=armv7-a
>
> -obj-$(CONFIG_ARCH_NPCM750)     += npcm7xx.o platsmp.o headsmp.o
> +obj-$(CONFIG_ARCH_NPCM750)     += npcm7xx.o
> +obj-$(CONFIG_SMP)              += platsmp.o headsmp.o
>
> Can one of you send me a pull request or the full patch series on top
> of the version I have in arm-soc?
>
>       Arnd