u-boot-brain/arch/arc/include
Eugeniy Paltsev 61c151693b ARC: ARCv2: handle DSP presence in HW
In case of DSP extension presence in HW some instructions
(related to integer multiply, multiply-accumulate, and divide
operation) executes on this DSP execution unit. So their
execution will depend on dsp configuration register (DSP_CTRL)
As we want these instructions to execute the same way regardless
of DSP presence we need to set DSP_CTRL properly.

NOTE:
we do the same adjustments in Linux kernel, see in kernel tree:
commit 4827d0cf744e ("ARC: handle DSP presence in HW")

Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
2020-04-27 11:20:25 +03:00
..
asm ARC: ARCv2: handle DSP presence in HW 2020-04-27 11:20:25 +03:00