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

[Scott Wood]

Sigh.  It wasn't.  It's a hypothetical possibility to help guide the
decision of whether to classify a piece of code as "arm64" or "armv8".

-Scott

On Thu, 2013-09-26 at 10:30 +0530, Mj Embd wrote:
> 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