boards: Update arc em_starterkit support from 2.2 to 2.3
Here are the main changes:
* board: Update EMSK onboard resources such as Button, Switch and LEDs
+ update soc.h for em7d, em9d, em11d
+ update board.h for em_starterkit board
* arc: Add floating point support and code density support
+ add kconfig configuration
+ add compiler options
+ add register definitions, marcos, assembly codes
+ fixes in existing codes and configurations.
* arc: Update detailed board configurations for cores of emsk 2.3
* script: Provide arc_debugger.sh for debugging em_starterkit board
+ make BOARD=em_starterkit debug
This will start openocd server for emsk, and arc gdb will connect
to this debug server, user can run `continue` command if user just
want to run the application, or other commands if debugging needed.
+ make BOARD=em_starterkit debugserver
This will start an openocd debugger server for emsk, and user can
connect to this debugserver using arc gdb and do what they want to.
+ make BOARD=em_starterkit flash
This will download the zephyr application elf file to emsk,
and run it.
Signed-off-by: Huaqi Fang <huaqi.fang@synopsys.com>
2017-05-17 15:18:51 +08:00
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# -mcpu=em4_fpuda is added to KBUILD_CFLAGS to make cc-option check the options correctly
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KBUILD_CFLAGS += -mcpu=em4_fpuda
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soc-cflags += $(call cc-option, -mcpu=em4_fpuda -mno-sdata -mdiv-rem -mswap -mnorm) \
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$(call cc-option,-mmpy-option=6 -mbarrel-shifter) \
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$(call cc-option,--param l1-cache-size=16384) \
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$(call cc-option,--param l1-cache-line-size=32)
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ifeq ($(CONFIG_CODE_DENSITY), y)
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soc-cflags += $(call cc-option, -mcode-density)
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endif
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ifeq ($(CONFIG_FLOAT), y)
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soc-cflags += $(call cc-option, -mfpu=fpuda_all)
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endif
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