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

26 Mar 2018


      于 2018年3月26日 GMT+08:00 下午3:06:33, Maxime Ripard maxime.ripard@bootlin.com 写到:
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On Fri, Mar 23, 2018 at 05:41:43PM +0800, Icenowy Zheng wrote:
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于 2018年3月23日 GMT+08:00 下午5:40:41, Maxime Ripard
maxime.ripard@bootlin.com 写到:
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On Fri, Mar 23, 2018 at 04:18:56PM +0800, Icenowy Zheng wrote:
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The get_ram_size() function in U-Boot can only deal with memory
size
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smaller than 2GiB. To enable the support of 3GiB DRAM on newer
64-bit
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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.
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Maxime