Alison Wang 53fd4b8c22 arm: mmu: Add missing volatile for reading SCTLR register ...

Add 'volatile' qualifier to the asm statement in get_cr()
so that the statement is not optimized out by the compiler.

(http://comments.gmane.org/gmane.linux.linaro.toolchain/5163)

Without the 'volatile', get_cr() returns a wrong value which
prevents enabling the MMU  and later causes a PCIE VA access
failure.

Signed-off-by: Alison Wang <alison.wang@freescale.com>

2015-10-16 07:55:51 +02:00

8.4 KiB

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