[U-Boot] [PATCH v10 1/6] core support of arm64

[Mj Embd]

When "64-bit ARMv9" was announced ?


On Thu, Sep 26, 2013 at 4:46 AM, Scott Wood <scottwood at freescale.com> wrote:

> On Tue, 2013-09-17 at 16:37 +0800, FengHua wrote:
> >
> >
> > > -----原始邮件-----
> > > 发件人: "Scott Wood" <scottwood at freescale.com>
> > > 发送时间: 2013年9月17日 星期二
> > > 收件人: fenghua at phytium.com.cn
> > > 抄送: u-boot at lists.denx.de, trini at ti.com, albert.u.boot at aribaud.net,
> wd at denx.de, B45370 at freescale.com
> > > 主题: Re: [PATCH v10 1/6] core support of arm64
> > >
> > > On Mon, 2013-09-16 at 16:08 +0800, fenghua at phytium.com.cn wrote:
> > > > From: David Feng <fenghua at phytium.com.cn>
> > > >
> > > > Signed-off-by: David Feng <fenghua at phytium.com.cn>
> > > > ---
> > >
> > > You've still got CONFIG_ARMV8 in places that should be CONFIG_ARM64
> >
> > I am hesitate to use CONFIG_ARM64 instead of CONFIG _ARMV8.
> > I am not sure whether all the CONFIG_ARMV8 could be replaced with
> CONFIG_ARM64
> > or CONFIG_ARMV8 and CONFIG_ARMV64 are both needed.
> > I will take this into account in the next.
>
> If it inherently relates to being 64-bit (including ABI issues), use
> CONFIG_ARM64.  If it's something that is new in ARMv8 but isn't
> specifically due to 64-bitness (e.g. cache stuff, if it's different from
> ARMv7), and could reasonably be different in a 64-bit ARMv9, then use
> CONFIG_ARMV8.
>
> -Scott
>
>
>
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-- 
-mj