arm64: head: create a new function for setting the boot_cpu_mode flag

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Currently, the code for setting the __cpu_boot_mode flag is munged in
with el2_setup. This makes things difficult on a BE bringup as a
memory access has to have occurred before el2_setup which is the place
that we'd like to set the endianess on the current EL.

Create a new function for setting __cpu_boot_mode and have el2_setup
return the mode the CPU. Also define a new constant in virt.h,
BOOT_CPU_MODE_EL1, for readability.

Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Acked-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Matthew Leach <matthew.leach@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>

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Matthew Leach 2013-10-11 14:52:16 +01:00 • committed by Catalin Marinas

parent e68bedaa03

commit 828e9834e9

2 changed files with 27 additions and 10 deletions

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3

arch/arm64/include/asm/virt.h

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34

arch/arm64/kernel/head.S

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