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authorKevin Hao <haokexin@gmail.com>2013-12-24 15:12:08 +0800
committerScott Wood <scottwood@freescale.com>2014-01-09 17:52:17 -0600
commitb27652dd2174df1a7e0a7c5f00d1c8e3ed9287a7 (patch)
treea93bf5700c442d52a2ed86de8d2203f05e78cf23 /arch/powerpc/mm
parent78a235efdc42ff363de81fdbc171385e8b86b69b (diff)
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powerpc: introduce early_get_first_memblock_info
For a relocatable kernel since it can be loaded at any place, there is no any relation between the kernel start addr and the memstart_addr. So we can't calculate the memstart_addr from kernel start addr. And also we can't wait to do the relocation after we get the real memstart_addr from device tree because it is so late. So introduce a new function we can use to get the first memblock address and size in a very early stage (before machine_init). Signed-off-by: Kevin Hao <haokexin@gmail.com> Signed-off-by: Scott Wood <scottwood@freescale.com>
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