diff options
| author | Dmitry Eremin-Solenikov <dbaryshkov@gmail.com> | 2014-11-21 15:29:00 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2014-11-21 15:25:17 +0000 |
| commit | ef59a20ba375aeb97b3150a118318884743452a8 (patch) | |
| tree | 00d9e19fb7b97ee04a4df9cc83537bb7f6e3a3d5 /arch/arm/include/asm/thread_info.h | |
| parent | 08b964ff3c51b10aaf2e6ba639f40054c09f0f7a (diff) | |
ARM: 8216/1: xscale: correct auxiliary register in suspend/resume
According to the manuals I have, XScale auxiliary register should be
reached with opc_2 = 1 instead of crn = 1. cpu_xscale_proc_init
correctly uses c1, c0, 1 arguments, but cpu_xscale_do_suspend and
cpu_xscale_do_resume use c1, c1, 0. Correct suspend/resume functions to
also use c1, c0, 1.
The issue was primarily noticed thanks to qemu reporing "unsupported
instruction" on the pxa suspend path. Confirmed in PXA210/250 and PXA255
XScale Core manuals and in PXA270 and PXA320 Developers Guides.
Harware tested by me on tosa (pxa255). Robert confirmed on pxa270 board.
Tested-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Acked-by: Robert Jarzmik <robert.jarzmik@free.fr>
Cc: stable@vger.kernel.org
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/include/asm/thread_info.h')
0 files changed, 0 insertions, 0 deletions