riscv64-npc: enable RVM

scripts/riscv64-mycpu.mk

@@ -1,28 +0,0 @@
-CROSS_COMPILE := riscv64-linux-gnu-
-COMMON_FLAGS  := -fno-pic -march=rv64ifd -mcmodel=medany
-CFLAGS        += $(COMMON_FLAGS) -static
-ASFLAGS       += $(COMMON_FLAGS) -O0
-LDFLAGS       += -melf64lriscv
-
-AM_SRCS := riscv/mycpu/start.S \
-           riscv/mycpu/trm.c \
-           riscv/mycpu/libgcc/muldi3.S \
-           riscv/mycpu/libgcc/div.S \
-           riscv/mycpu/ioe.c \
-           riscv/mycpu/timer.c \
-           riscv/mycpu/input.c \
-           riscv/mycpu/cte.c \
-           riscv/mycpu/trap.S \
-           platform/dummy/vme.c \
-           platform/dummy/mpe.c
-
-CFLAGS    += -fdata-sections -ffunction-sections
-LDFLAGS   += -T $(AM_HOME)/scripts/linker.ld --defsym=_pmem_start=0x80000000 --defsym=_entry_offset=0x0
-LDFLAGS   += --gc-sections -e _start
-CFLAGS += -DMAINARGS=\"$(mainargs)\"
-.PHONY: $(AM_HOME)/am/src/riscv/mycpu/trm.c
-
-image: $(IMAGE).elf
-	@$(OBJDUMP) -d $(IMAGE).elf > $(IMAGE).txt
-	@echo + OBJCOPY "->" $(IMAGE_REL).bin
-	@$(OBJCOPY) -S --set-section-flags .bss=alloc,contents -O binary $(IMAGE).elf $(IMAGE).bin

scripts/riscv64-npc.mk

@@ -0,0 +1,22 @@
+include $(AM_HOME)/scripts/isa/riscv64.mk
+
+AM_SRCS := riscv/npc/start.S \
+           riscv/npc/trm.c \
+           riscv/npc/ioe.c \
+           riscv/npc/timer.c \
+           riscv/npc/input.c \
+           riscv/npc/cte.c \
+           riscv/npc/trap.S \
+           platform/dummy/vme.c \
+           platform/dummy/mpe.c
+
+CFLAGS    += -fdata-sections -ffunction-sections
+LDFLAGS   += -T $(AM_HOME)/scripts/linker.ld --defsym=_pmem_start=0x80000000 --defsym=_entry_offset=0x0
+LDFLAGS   += --gc-sections -e _start
+CFLAGS += -DMAINARGS=\"$(mainargs)\"
+.PHONY: $(AM_HOME)/am/src/riscv/npc/trm.c
+
+image: $(IMAGE).elf
+	@$(OBJDUMP) -d $(IMAGE).elf > $(IMAGE).txt
+	@echo + OBJCOPY "->" $(IMAGE_REL).bin
+	@$(OBJCOPY) -S --set-section-flags .bss=alloc,contents -O binary $(IMAGE).elf $(IMAGE).bin