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arch/csky: add support for VDSP extensions

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VDSP is C-SKY enhanced extension instruction set for SIMD, AI and DSP
operation. It is supported by abiv2, used by the ck807, ck810, ck860
cores.

Signed-off-by: Guo Ren <ren_guo@c-sky.com>
Cc: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
[Thomas: update help text in Config.in.legacy about the BR2_CSKY_DSP
option.]
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
This commit is contained in:
Guo Ren 2019-05-31 14:38:59 +08:00 committed by Thomas Petazzoni
parent 55c6422878
commit d2658caea0
3 changed files with 11 additions and 1 deletions
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4
Config.in.legacy
View File

@ -151,7 +151,9 @@ config BR2_CSKY_DSP
select BR2_LEGACY
help
C-SKY DSP instruction support for ck810 / ck807 was removed,
as it was no longer supported in C-SKY gcc.
as it was no longer supported in C-SKY gcc. Perhaps the VDSP
instructions should be used instead, using the BR2_CSKY_VDSP
option.
config BR2_PACKAGE_GST1_PLUGINS_BAD_PLUGIN_COMPOSITOR
bool "compositor moved to gst1-plugins-base"

4
arch/Config.in.csky
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@ -23,6 +23,10 @@ config BR2_CSKY_FPU
Floating-Point Coprocessor or if you don't need FPU support
for your user-space programs.
config BR2_CSKY_VDSP
bool "Enable VDSP enhanced instructions Co-processor"
depends on BR2_CSKY_FPU
config BR2_ARCH
default "csky"

4
arch/arch.mk.csky
View File

@ -17,4 +17,8 @@ ifeq ($(BR2_CSKY_FPU),y)
GCC_TARGET_CPU := $(GCC_TARGET_CPU)f
endif
ifeq ($(BR2_CSKY_VDSP),y)
GCC_TARGET_CPU := $(GCC_TARGET_CPU)v
endif
endif