powerpc/fsl_booke: smp support for booting a relocatable kernel above 64M
When booting above the 64M for a secondary cpu, we also face the same issue as the boot cpu that the PAGE_OFFSET map two different physical address for the init tlb and the final map. So we have to use switch_to_as1/restore_to_as0 between the conversion of these two maps. When restoring to as0 for a secondary cpu, we only need to return to the caller. So add a new parameter for function restore_to_as0 for this purpose. Use LOAD_REG_ADDR_PIC to get the address of variables which may be used before we set the final map in cams for the secondary cpu. Move the setting of cams a bit earlier in order to avoid the unnecessary using of LOAD_REG_ADDR_PIC. Signed-off-by: NKevin Hao <haokexin@gmail.com> Signed-off-by: NScott Wood <scottwood@freescale.com>
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