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| author | Alison Wang <b18965@freescale.com> | 2015-09-09 10:22:02 +0800 |
|---|---|---|
| committer | Albert ARIBAUD <albert.u.boot@aribaud.net> | 2015-10-16 07:55:51 +0200 |
| commit | 53fd4b8c22bbdf4598f87e701e9a6c6ee50172ff (patch) | |
| tree | 24d8f51da79a8a92ad533fb87122756ba78d4d3b /common/cmd_portio.c | |
| parent | 1275456d31cc130738775dca19b0a2ab1374cfbd (diff) | |
| download | blackbird-obmc-uboot-53fd4b8c22bbdf4598f87e701e9a6c6ee50172ff.tar.gz blackbird-obmc-uboot-53fd4b8c22bbdf4598f87e701e9a6c6ee50172ff.zip | |
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>
Diffstat (limited to 'common/cmd_portio.c')
0 files changed, 0 insertions, 0 deletions
