It's a very rare if at all existing occasion when ARC CPU template
is used as is w/o any changes - in the end it's a beauty and competitive
advantage of ARC cores to be tailored for a particular use-case - and
so it doesn't make a lot of sense to offer template-based "-mcpu" selection.
Given for each and every platform we end-up adding quite a few more flags
it's logical to move "-mcpu" selection to platform's definition as well
which we exactly do here.
Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@xxxxxxxxxxxx>
---
arch/arc/config.mk | 20 --------------------
board/abilis/tb100/config.mk | 5 +++++
board/synopsys/axs10x/config.mk | 6 ++++++
board/synopsys/emsdp/config.mk | 2 +-
board/synopsys/hsdk/config.mk | 4 ++++
board/synopsys/iot_devkit/config.mk | 3 ++-
board/synopsys/nsim/Kconfig | 9 +++++++++
board/synopsys/nsim/config.mk | 8 ++++++++
configs/nsim_700_defconfig | 1 +
configs/nsim_700be_defconfig | 1 +
configs/nsim_hs38_defconfig | 1 +
configs/nsim_hs38be_defconfig | 1 +
12 files changed, 39 insertions(+), 22 deletions(-)
create mode 100644 board/abilis/tb100/config.mk
create mode 100644 board/synopsys/nsim/config.mk
diff --git a/arch/arc/config.mk b/arch/arc/config.mk
index 18005d99930..6fa29adae81 100644
--- a/arch/arc/config.mk
+++ b/arch/arc/config.mk
@@ -22,26 +22,6 @@ ifdef CONFIG_ARC_MMU_VER
CONFIG_MMU = 1
endif
-ifdef CONFIG_CPU_ARC750D
-PLATFORM_CPPFLAGS += -mcpu=arc700
-endif
-
-ifdef CONFIG_CPU_ARC770D
-PLATFORM_CPPFLAGS += -mcpu=arc700 -mlock -mswape
-endif
-
-ifdef CONFIG_CPU_ARCEM6
-PLATFORM_CPPFLAGS += -mcpu=arcem
-endif
-
-ifdef CONFIG_CPU_ARCHS34
-PLATFORM_CPPFLAGS += -mcpu=archs
-endif
-
-ifdef CONFIG_CPU_ARCHS38
-PLATFORM_CPPFLAGS += -mcpu=archs
-endif
-
PLATFORM_CPPFLAGS += -ffixed-r25 -D__ARC__ -gdwarf-2 -mno-sdata
PLATFORM_RELFLAGS += -ffunction-sections -fdata-sections -fno-common
diff --git a/board/abilis/tb100/config.mk b/board/abilis/tb100/config.mk
new file mode 100644
index 00000000000..9e8dee49bd3
--- /dev/null
+++ b/board/abilis/tb100/config.mk
@@ -0,0 +1,5 @@
+# SPDX-License-Identifier: GPL-2.0+
+#
+# Copyright (C) 2020 Synopsys, Inc. All rights reserved.
+
+PLATFORM_CPPFLAGS += -mcpu=arc700 -mlock -mswape
diff --git a/board/synopsys/axs10x/config.mk b/board/synopsys/axs10x/config.mk
index 81ff498f818..ccac5442908 100644
--- a/board/synopsys/axs10x/config.mk
+++ b/board/synopsys/axs10x/config.mk
@@ -2,6 +2,12 @@
#
# Copyright (C) 2018 Synopsys, Inc. All rights reserved.
+ifdef CONFIG_TARGET_AXS103
+ PLATFORM_CPPFLAGS += -mcpu=archs
+else
+ PLATFORM_CPPFLAGS += -mcpu=arc700 -mlock -mswape
+endif
+
bsp-generate: u-boot u-boot.bin
ifdef CONFIG_ISA_ARCV2
$(Q)python3 $(srctree)/board/$(BOARDDIR)/headerize-axs.py \
diff --git a/board/synopsys/emsdp/config.mk b/board/synopsys/emsdp/config.mk
index 67fd7bf82a3..5bd10442aff 100644
--- a/board/synopsys/emsdp/config.mk
+++ b/board/synopsys/emsdp/config.mk
@@ -1,2 +1,2 @@
-PLATFORM_CPPFLAGS += -mlittle-endian -mnorm -mswap -mmpy-option=3 \
+PLATFORM_CPPFLAGS += -mcpu=arcem -mlittle-endian -mnorm -mswap -mmpy-option=3 \
-mbarrel-shifter -mfpu=fpuda_all -mcode-density
diff --git a/board/synopsys/hsdk/config.mk b/board/synopsys/hsdk/config.mk
index 9e280f921a1..5ae22fa2b75 100644
--- a/board/synopsys/hsdk/config.mk
+++ b/board/synopsys/hsdk/config.mk
@@ -2,6 +2,10 @@
#
# Copyright (C) 2018 Synopsys, Inc. All rights reserved.
+PLATFORM_CPPFLAGS += -mcpu=hs38_linux -mlittle-endian -matomic -mll64 \
+ -mdiv-rem -mswap -mnorm -mmpy-option=9 -mbarrel-shifter \
+ -mfpu=fpud_all
+
bsp-generate: u-boot u-boot.bin
$(Q)python3 $(srctree)/board/$(BOARDDIR)/headerize-hsdk.py \
--arc-id 0x52 --image $(srctree)/u-boot.bin \
diff --git a/board/synopsys/iot_devkit/config.mk b/board/synopsys/iot_devkit/config.mk
index 120733538a4..e1e546a3d04 100644
--- a/board/synopsys/iot_devkit/config.mk
+++ b/board/synopsys/iot_devkit/config.mk
@@ -1,2 +1,3 @@
-PLATFORM_CPPFLAGS += -mlittle-endian -mcode-density -mdiv-rem -mswap -mnorm -mmpy-option=6 -mbarrel-shifter
+PLATFORM_CPPFLAGS += -mcpu=em4_fpuda -mlittle-endian -mcode-density -mdiv-rem \
+ -mswap -mnorm -mmpy-option=6 -mbarrel-shifter
LDSCRIPT = $(srctree)/board/synopsys/iot_devkit/u-boot.lds
diff --git a/board/synopsys/nsim/Kconfig b/board/synopsys/nsim/Kconfig
index 22287032bf5..b6966b2991e 100644
--- a/board/synopsys/nsim/Kconfig
+++ b/board/synopsys/nsim/Kconfig
@@ -9,4 +9,13 @@ config SYS_VENDOR
config SYS_CONFIG_NAME
default "nsim"
+config NSIM_BOARD_CPPFLAGS
+ string "board arc-specific compiler options"
+ help
+ For nSIM we allow to set custom arc-specific compiler options
+ (like -mcpu=) instead of hardcoding them in its makefile as nSIM
+ target is used for representing targets without fixed CPU version
+ like FPGA-based boards and software simulators.
+ This variable takes space separated compiler options list.
+
endif
diff --git a/board/synopsys/nsim/config.mk b/board/synopsys/nsim/config.mk
new file mode 100644
index 00000000000..40f9578a25a
--- /dev/null
+++ b/board/synopsys/nsim/config.mk
@@ -0,0 +1,8 @@
+# SPDX-License-Identifier: GPL-2.0+
+#
+# Copyright (C) 2020 Synopsys, Inc. All rights reserved.
+
+# CONFIG_NSIM_BOARD_CPPFLAGS is a string variable which comes from defconfig
+# with double quotes. We use echo to remove them so CONFIG_NSIM_BOARD_CPPFLAGS
+# won't be treated by compiler as a single option.
+PLATFORM_CPPFLAGS += $(shell echo $(CONFIG_NSIM_BOARD_CPPFLAGS))
diff --git a/configs/nsim_700_defconfig b/configs/nsim_700_defconfig
index 6a38e2c246a..5e897697843 100644
--- a/configs/nsim_700_defconfig
+++ b/configs/nsim_700_defconfig
@@ -1,5 +1,6 @@
CONFIG_ARC=y
CONFIG_TARGET_NSIM=y
+CONFIG_NSIM_BOARD_CPPFLAGS="-mcpu=arc700 -mlock -mswape"
CONFIG_SYS_TEXT_BASE=0x81000000
CONFIG_DEBUG_UART_BASE=0xf0000000
CONFIG_DEBUG_UART_CLOCK=70000000
diff --git a/configs/nsim_700be_defconfig b/configs/nsim_700be_defconfig
index d3ed84a4154..03912712486 100644
--- a/configs/nsim_700be_defconfig
+++ b/configs/nsim_700be_defconfig
@@ -1,6 +1,7 @@
CONFIG_ARC=y
CONFIG_CPU_BIG_ENDIAN=y
CONFIG_TARGET_NSIM=y
+CONFIG_NSIM_BOARD_CPPFLAGS="-mcpu=arc700 -mlock -mswape"
CONFIG_SYS_TEXT_BASE=0x81000000
CONFIG_DEBUG_UART_BASE=0xf0000000
CONFIG_DEBUG_UART_CLOCK=70000000
diff --git a/configs/nsim_hs38_defconfig b/configs/nsim_hs38_defconfig
index 2f46610d9cb..a6ebcc49a8c 100644
--- a/configs/nsim_hs38_defconfig
+++ b/configs/nsim_hs38_defconfig
@@ -1,6 +1,7 @@
CONFIG_ARC=y
CONFIG_ISA_ARCV2=y
CONFIG_TARGET_NSIM=y
+CONFIG_NSIM_BOARD_CPPFLAGS="-mcpu=archs"
CONFIG_SYS_TEXT_BASE=0x81000000
CONFIG_DEBUG_UART_BASE=0xf0000000
CONFIG_DEBUG_UART_CLOCK=70000000
diff --git a/configs/nsim_hs38be_defconfig b/configs/nsim_hs38be_defconfig
index b074b4ca98c..72472afb2b1 100644
--- a/configs/nsim_hs38be_defconfig
+++ b/configs/nsim_hs38be_defconfig
@@ -2,6 +2,7 @@ CONFIG_ARC=y
CONFIG_ISA_ARCV2=y
CONFIG_CPU_BIG_ENDIAN=y
CONFIG_TARGET_NSIM=y
+CONFIG_NSIM_BOARD_CPPFLAGS="-mcpu=archs"
CONFIG_SYS_TEXT_BASE=0x81000000
CONFIG_DEBUG_UART_BASE=0xf0000000
CONFIG_DEBUG_UART_CLOCK=70000000
--
2.21.1
_______________________________________________
linux-snps-arc mailing list
linux-snps-arc@xxxxxxxxxxxxxxxxxxx
http://lists.infradead.org/mailman/listinfo/linux-snps-arc
