[U-Boot] [PATCH 1/3] ARMv8/layerscape: Add mmu_init API

[Zhiqiang Hou]

Hi York,

> -----Original Message-----
> From: york sun
> Sent: 2016年1月20日 23:55
> To: Zhiqiang Hou <zhiqiang.hou at nxp.com>; Prabhakar Kushwaha
> <prabhakar.kushwaha at nxp.com>; Zhiqiang Hou <Zhiqiang.Hou at freescale.com>;
> u-boot at lists.denx.de; albert.u.boot at aribaud.net; Mingkai.hu at freescale.com;
> yorksun at freescale.com
> Cc: leoli at freescale.com; prabhakar at freescale.com;
> bhupesh.sharma at freescale.com; sjg at chromium.org; bmeng.cn at gmail.com;
> hs at denx.de; joe.hershberger at ni.com; marex at denx.de; Hou Zhiqiang
> <B48286 at freescale.com>
> Subject: Re: [PATCH 1/3] ARMv8/layerscape: Add mmu_init API
> 
> On 01/20/2016 04:06 AM, Zhiqiang Hou wrote:
> 
> <snip>
> 
> > I am not know cache and mmu so much, and have some question:
> > For ARM:
> > Why there isn't a isolate API for mmu_setup, but invoke it from dcache_enable()?
> > If data cache won't be used, the MMU also cannot be used?
> 
> No. If MMU is not enabled, cacheability cannot be set.

Thanks for your clarification!

- Zhiqiang