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| H A D | system.h | 53fd4b8c22bbdf4598f87e701e9a6c6ee50172ff Wed Sep 09 02:22:02 UTC 2015 Alison Wang <b18965@freescale.com> 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>
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