[U-Boot] [PATCH v2 5/6] sunxi: add code for recalculating the DRAM size in U-Boot

[Maxime Ripard]

On Mon, Mar 26, 2018 at 03:11:04PM +0800, Icenowy Zheng wrote:
> 
> 
> 于 2018年3月26日 GMT+08:00 下午3:06:33, Maxime Ripard <maxime.ripard at bootlin.com> 写到:
> >On Fri, Mar 23, 2018 at 05:41:43PM +0800, Icenowy Zheng wrote:
> >> 
> >> 
> >> 于 2018年3月23日 GMT+08:00 下午5:40:41, Maxime Ripard
> ><maxime.ripard at bootlin.com> 写到:
> >> >On Fri, Mar 23, 2018 at 04:18:56PM +0800, Icenowy Zheng wrote:
> >> >> The get_ram_size() function in U-Boot can only deal with memory
> >size
> >> >> smaller than 2GiB. To enable the support of 3GiB DRAM on newer
> >64-bit
> >> >> SoCs, an alternative way to detect DRAM size is needed.
> >> >
> >> >Why not just fixing get_ram_size then?
> >> 
> >> Even if it's fixed it won't support 3GiB DRAM at all.
> >
> >Why?
> 
> It has an assumption that the size is pow of 2.

I guess this would be fixable too? (or one could create a variant
without that assumption).

Maxime

-- 
Maxime Ripard, Bootlin (formerly Free Electrons)
Embedded Linux and Kernel engineering
https://bootlin.com
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