Remove K210 support.

os/Makefile

@@ -5,14 +5,12 @@ KERNEL_ELF := target/$(TARGET)/$(MODE)/os
 KERNEL_BIN := $(KERNEL_ELF).bin
 DISASM_TMP := target/$(TARGET)/$(MODE)/asm
 FS_IMG := ../user/target/$(TARGET)/$(MODE)/fs.img
-SDCARD := /dev/sdb
 APPS := ../user/src/bin/*
 
 # BOARD
-BOARD ?= qemu
+BOARD := qemu
 SBI ?= rustsbi
 BOOTLOADER := ../bootloader/$(SBI)-$(BOARD).bin
-K210_BOOTLOADER_SIZE := 131072
 
 # Building mode argument
 ifeq ($(MODE), release)
@@ -20,15 +18,7 @@ ifeq ($(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
@@ -40,14 +30,7 @@ DISASM ?= -x
 # Run usertests or usershell
 TEST ?=
 
-build: env switch-check $(KERNEL_BIN) fs-img 
-
-switch-check:
-ifeq ($(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) fs-img 
 
 env:
 	(rustup target list | grep "riscv64gc-unknown-none-elf (installed)") || rustup target add $(TARGET)
@@ -55,11 +38,6 @@ env:
 	rustup component add rust-src
 	rustup component add llvm-tools-preview
 
-sdcard: fs-img
-	@echo "Are you sure write to $(SDCARD) ? [y/N] " && read ans && [ $${ans:-N} = y ]
-	@sudo dd if=/dev/zero of=$(SDCARD) bs=1048576 count=32
-	@sudo dd if=$(FS_IMG) of=$(SDCARD)
-
 $(KERNEL_BIN): kernel
 	@$(OBJCOPY) $(KERNEL_ELF) --strip-all -O binary $@
 
@@ -73,7 +51,7 @@ $(APPS):
 kernel:
 	@echo Platform: $(BOARD)
 	@cp src/linker-$(BOARD).ld src/linker.ld
-	@cargo build --release --features "board_$(BOARD)"
+	@cargo build --release
 	@rm src/linker.ld
 
 clean:
@@ -105,7 +83,6 @@ ifeq ($(BOARD),qemu)
 endif
 
 run-inner: build
-ifeq ($(BOARD),qemu)
 	@qemu-system-riscv64 \
 		-M 128m \
 		-machine virt \
@@ -118,15 +95,6 @@ ifeq ($(BOARD),qemu)
 		-device virtio-keyboard-device  \
 		-device virtio-mouse-device \
 		-serial stdio
-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 \
@@ -141,4 +109,4 @@ 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 fs-img gdbserver gdbclient
+.PHONY: build env kernel clean disasm disasm-vim run-inner fs-img gdbserver gdbclient