Remove K210 support.

os/Makefile

@@ -6,10 +6,9 @@ KERNEL_BIN := $(KERNEL_ELF).bin
 DISASM_TMP := target/$(TARGET)/$(MODE)/asm
 
 # BOARD
-BOARD ?= qemu
+BOARD := qemu
 SBI ?= rustsbi
 BOOTLOADER := ../bootloader/$(SBI)-$(BOARD).bin
-K210_BOOTLOADER_SIZE := 131072
 
 # Building mode argument
 ifeq ($(MODE), release)
@@ -17,15 +16,7 @@ ifeq ($(MODE), release)
 endif
 
 # KERNEL ENTRY
-ifeq ($(BOARD), qemu)
-	KERNEL_ENTRY_PA := 0x80200000
-else ifeq ($(BOARD), k210)
-	KERNEL_ENTRY_PA := 0x80020000
-endif
-
-# Run K210
-K210-SERIALPORT	= /dev/ttyUSB0
-K210-BURNER = ../tools/kflash.py
+KERNEL_ENTRY_PA := 0x80200000
 
 # Binutils
 OBJDUMP := rust-objdump --arch-name=riscv64
@@ -34,14 +25,7 @@ OBJCOPY := rust-objcopy --binary-architecture=riscv64
 # Disassembly
 DISASM ?= -x
 
-build: env switch-check $(KERNEL_BIN)
-
-switch-check:
-ifeq ($(BOARD), qemu)
-	(which last-qemu) || (rm -f last-k210 && touch last-qemu && make clean)
-else ifeq ($(BOARD), k210)
-	(which last-k210) || (rm -f last-qemu && touch last-k210 && make clean)
-endif
+build: env $(KERNEL_BIN)
 
 env:
 	(rustup target list | grep "riscv64gc-unknown-none-elf (installed)") || rustup target add $(TARGET)
@@ -56,7 +40,7 @@ kernel:
 	@cd ../user && make build
 	@echo Platform: $(BOARD)
 	@cp src/linker-$(BOARD).ld src/linker.ld
-	@cargo build $(MODE_ARG) --features "board_$(BOARD)"
+	@cargo build $(MODE_ARG)
 	@rm src/linker.ld
 
 clean:
@@ -75,21 +59,11 @@ run: run-inner
 	
 
 run-inner: build
-ifeq ($(BOARD),qemu)
 	@qemu-system-riscv64 \
 		-machine virt \
 		-nographic \
 		-bios $(BOOTLOADER) \
 		-device loader,file=$(KERNEL_BIN),addr=$(KERNEL_ENTRY_PA)
-else
-	(which $(K210-BURNER)) || (cd .. && git clone https://github.com/sipeed/kflash.py.git && mv kflash.py tools)
-	@cp $(BOOTLOADER) $(BOOTLOADER).copy
-	@dd if=$(KERNEL_BIN) of=$(BOOTLOADER).copy bs=$(K210_BOOTLOADER_SIZE) seek=1
-	@mv $(BOOTLOADER).copy $(KERNEL_BIN)
-	@sudo chmod 777 $(K210-SERIALPORT)
-	python3 $(K210-BURNER) -p $(K210-SERIALPORT) -b 1500000 $(KERNEL_BIN)
-	python3 -m serial.tools.miniterm --eol LF --dtr 0 --rts 0 --filter direct $(K210-SERIALPORT) 115200
-endif
 
 debug: build
 	@tmux new-session -d \
@@ -103,4 +77,4 @@ gdbserver: build
 gdbclient:
 	@riscv64-unknown-elf-gdb -ex 'file $(KERNEL_ELF)' -ex 'set arch riscv:rv64' -ex 'target remote localhost:1234'
 
-.PHONY: build env kernel clean disasm disasm-vim run-inner switch-check gdbserver gdbclient
+.PHONY: build env kernel clean disasm disasm-vim run-inner gdbserver gdbclient