On 11/06/2019 12:30, Nylon Chen wrote:
This commit provides basic support for the
Andes 32-bit (nds32) architecture.
Hi,
thanks for the patches, they have not been picked up by anyone and right
now I am not sure if it makes sense to merge the support, as it requires
a fpga test board that probably no one apart from you guys has. sorry.
John
Signed-off-by: Che-Wei Chuang <cno...@andestech.com>
Signed-off-by: Nylon Chen <nyl...@andestech.com>
---
include/kernel.mk | 2 ++
include/site/nds32 | 33 +++++++++++++++++++++++++++++++++
include/target.mk | 4 ++++
target/Config.in | 5 +++++
toolchain/Config.in | 9 ++++++---
5 files changed, 50 insertions(+), 3 deletions(-)
create mode 100644 include/site/nds32
diff --git a/include/kernel.mk b/include/kernel.mk
index 3195090a0a..d0b5b779b9 100644
--- a/include/kernel.mk
+++ b/include/kernel.mk
@@ -85,6 +85,8 @@ ifneq (,$(findstring uml,$(BOARD)))
LINUX_KARCH=um
else ifneq (,$(findstring $(ARCH) , aarch64 aarch64_be ))
LINUX_KARCH := arm64
+else ifneq (,$(findstring $(ARCH) , nds32 ))
+ LINUX_KARCH := nds32
else ifneq (,$(findstring $(ARCH) , arceb ))
LINUX_KARCH := arc
else ifneq (,$(findstring $(ARCH) , armeb ))
diff --git a/include/site/nds32 b/include/site/nds32
new file mode 100644
index 0000000000..b0a0977671
--- /dev/null
+++ b/include/site/nds32
@@ -0,0 +1,33 @@
+ac_cv_c_littleendian=${ac_cv_c_littleendian=yes}
+ac_cv_c_bigendian=${ac_cv_c_bigendian=no}
+
+ac_cv_sizeof___int64=${ac_cv_sizeof___int64=0}
+ac_cv_sizeof_bool=${ac_cv_sizeof_bool=1}
+ac_cv_sizeof_char=${ac_cv_sizeof_char=1}
+ac_cv_sizeof_char_p=${ac_cv_sizeof_int_p=4}
+ac_cv_sizeof_double=${ac_cv_sizeof_double=8}
+ac_cv_sizeof_float=${ac_cv_sizeof_float=4}
+ac_cv_sizeof_int=${ac_cv_sizeof_int=4}
+ac_cv_sizeof_int_p=${ac_cv_sizeof_int_p=4}
+ac_cv_sizeof_long=${ac_cv_sizeof_long=4}
+ac_cv_sizeof_long_double=${ac_cv_sizeof_long_double=8}
+ac_cv_sizeof_long_int=${ac_cv_sizeof_long_int=4}
+ac_cv_sizeof_long_long=${ac_cv_sizeof_long_long=8}
+ac_cv_sizeof_long_p=${ac_cv_sizeof_long_p=4}
+ac_cv_sizeof_off_t=${ac_cv_sizeof_off_t=4}
+ac_cv_sizeof_ptrdiff_t=${glib_cv_sizeof_ptrdiff_t=4}
+ac_cv_sizeof_short=${ac_cv_sizeof_short=2}
+ac_cv_sizeof_short_int=${ac_cv_sizeof_short_int=2}
+ac_cv_sizeof_signed_char=${ac_cv_sizeof_signed_char=1}
+ac_cv_sizeof_size_t=${ac_cv_sizeof_size_t=4}
+ac_cv_sizeof_unsigned_char=${ac_cv_sizeof_unsigned_char=1}
+ac_cv_sizeof_unsigned_short=${ac_cv_sizeof_unsigned_short=2}
+ac_cv_sizeof_unsigned=${ac_cv_sizeof_unsigned=4}
+ac_cv_sizeof_unsigned_int=${ac_cv_sizeof_unsigned_int=4}
+ac_cv_sizeof_unsigned_long=${ac_cv_sizeof_unsigned_long=4}
+ac_cv_sizeof_unsigned_long_long=${ac_cv_sizeof_unsigned_long_long=8}
+ac_cv_sizeof_void_p=${ac_cv_sizeof_void_p=4}
+ac_cv_sizeof_wchar_t=${ac_cv_sizeof_wchar_t=1}
+
+ac_cv_func_realloc_0_nonnull=yes
+ac_cv_func_malloc_0_nonnull=yes
diff --git a/include/target.mk b/include/target.mk
index 4f3bd43e6c..75e23f328f 100644
--- a/include/target.mk
+++ b/include/target.mk
@@ -176,6 +176,10 @@ ifeq ($(DUMP),1)
CPU_CFLAGS_74kc = -mips32r2 -mtune=74kc
CPU_CFLAGS_octeonplus = -march=octeon+ -mabi=64
endif
+ ifeq ($(ARCH),nds32)
+ CPU_TYPE ?= nds32
+ CPU_CFLAGS += -march=v3
+ endif
ifeq ($(ARCH),i386)
CPU_TYPE ?= pentium
CPU_CFLAGS_pentium = -march=pentium-mmx
diff --git a/target/Config.in b/target/Config.in
index 3ee23ebf7f..8d6aa8769c 100644
--- a/target/Config.in
+++ b/target/Config.in
@@ -192,6 +192,10 @@ config x86_64
select ARCH_64BIT
bool
+config nds32
+ select LITTLE_ENDIAN
+ bool
+
config ARCH
string
default "aarch64" if aarch64
@@ -215,4 +219,5 @@ config ARCH
default "sh4eb" if sh4eb
default "sparc" if sparc
default "x86_64" if x86_64
+ default "nds32" if nds32
diff --git a/toolchain/Config.in b/toolchain/Config.in
index 82dddbc209..7cb65e803e 100644
--- a/toolchain/Config.in
+++ b/toolchain/Config.in
@@ -67,6 +67,7 @@ menuconfig EXTERNAL_TOOLCHAIN
default "mipsel-unknown-linux-gnu" if mipsel
default "powerpc-unknown-linux-gnu" if powerpc
default "x86_64-unknown-linux-gnu" if x86_64
+ default "nds32le-linux" if nds32
config TOOLCHAIN_PREFIX
string
@@ -81,6 +82,7 @@ menuconfig EXTERNAL_TOOLCHAIN
default "mipsel-unknown-linux-gnu-" if mipsel
default "powerpc-unknown-linux-gnu-" if powerpc
default "x86_64-unknown-linux-gnu-" if x86_64
+ default "nds32le-linux-" if nds32
config TOOLCHAIN_ROOT
string
@@ -113,11 +115,12 @@ menuconfig EXTERNAL_TOOLCHAIN
config EXTERNAL_TOOLCHAIN_LIBC_USE_UCLIBC
bool "uClibc"
select USE_UCLIBC
- depends on !(aarch64 || aarch64_be)
+ depends on !(aarch64 || aarch64_be || nds32)
config EXTERNAL_TOOLCHAIN_LIBC_USE_MUSL
bool "musl"
select USE_MUSL
+ depends on !nds32
endchoice
@@ -251,13 +254,13 @@ choice
config LIBC_USE_UCLIBC
select USE_UCLIBC
bool "Use uClibc"
- depends on !(aarch64 || aarch64_be || powerpc64)
+ depends on !(aarch64 || aarch64_be || powerpc64 || nds32)
depends on BROKEN || !(arm || armeb || i386 || x86_64 || mips
|| mipsel || mips64 || mips64el || powerpc)
config LIBC_USE_MUSL
select USE_MUSL
bool "Use musl"
- depends on !(arc || powerpc64)
+ depends on !(arc || powerpc64 || nds32)
endchoice
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