diff options
author | Austin Seipp <aseipp@pobox.com> | 2019-01-11 15:14:32 -0600 |
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committer | Austin Seipp <aseipp@pobox.com> | 2019-01-11 16:09:07 -0600 |
commit | 2944564ba803dbd4635e02a7a17f62e6dfeeefc3 (patch) | |
tree | 53b7e21875415831f8a5066977f32724b6685508 /scripts/icestorm/Makefile | |
parent | 752790a4d7fe79d6ec068923c2c6cc1706a8cb38 (diff) | |
download | picorv32-2944564ba803dbd4635e02a7a17f62e6dfeeefc3.tar.gz picorv32-2944564ba803dbd4635e02a7a17f62e6dfeeefc3.zip |
scripts/icestorm: move SHIFT_COUNTER_BITS into Makefile
This makes it easier to build separate bitstreams for simulation targets
vs the real bitstream for hardware, without editing any source code.
Signed-off-by: Austin Seipp <aseipp@pobox.com>
Diffstat (limited to 'scripts/icestorm/Makefile')
-rw-r--r-- | scripts/icestorm/Makefile | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/scripts/icestorm/Makefile b/scripts/icestorm/Makefile index 7a3ece3..eead7df 100644 --- a/scripts/icestorm/Makefile +++ b/scripts/icestorm/Makefile @@ -1,13 +1,19 @@ TOOLCHAIN_PREFIX = riscv32-unknown-elf- +# set to 4 for simulation +FIRMWARE_COUNTER_BITS=18 + all: example.bin ## ------------------- ## firmware generation firmware.elf: firmware.S firmware.c firmware.lds - $(TOOLCHAIN_PREFIX)gcc -march=rv32i -Os -ffreestanding -nostdlib -o $@ firmware.S firmware.c \ - --std=gnu99 -Wl,-Bstatic,-T,firmware.lds,-Map,firmware.map,--strip-debug -lgcc + $(TOOLCHAIN_PREFIX)gcc \ + -DSHIFT_COUNTER_BITS=$(FIRMWARE_COUNTER_BITS) \ + -march=rv32i -Os -ffreestanding -nostdlib \ + -o $@ firmware.S firmware.c \ + --std=gnu99 -Wl,-Bstatic,-T,firmware.lds,-Map,firmware.map,--strip-debug -lgcc chmod -x $@ firmware.bin: firmware.elf |