Add new kendryte k210 target definition

.gitignore

@@ -11,6 +11,8 @@ src/device/sifive/*.go
 src/device/sifive/*.s
 src/device/stm32/*.go
 src/device/stm32/*.s
+src/device/kendryte/*.go
+src/device/kendryte/*.s
 vendor
 llvm-build
 llvm-project

.gitmodules

@@ -9,7 +9,7 @@
 	url = https://github.com/avr-rust/avr-mcu.git
 [submodule "lib/cmsis-svd"]
 	path = lib/cmsis-svd
-	url = https://github.com/posborne/cmsis-svd
+	url = https://github.com/yannishuber/cmsis-svd
 [submodule "lib/compiler-rt"]
 	path = lib/compiler-rt
 	url = https://github.com/llvm-mirror/compiler-rt.git

Makefile

@@ -118,7 +118,7 @@ fmt-check:
 	@unformatted=$$(gofmt -l $(FMT_PATHS)); [ -z "$$unformatted" ] && exit 0; echo "Unformatted:"; for fn in $$unformatted; do echo "  $$fn"; done; exit 1
 
 
-gen-device: gen-device-avr gen-device-nrf gen-device-sam gen-device-sifive gen-device-stm32
+gen-device: gen-device-avr gen-device-nrf gen-device-sam gen-device-sifive gen-device-stm32 gen-device-kendryte
 
 gen-device-avr:
 	$(GO) build -o ./build/gen-device-avr ./tools/gen-device-avr/
@@ -141,6 +141,10 @@ gen-device-sifive: build/gen-device-svd
 	./build/gen-device-svd -source=https://github.com/posborne/cmsis-svd/tree/master/data/SiFive-Community -interrupts=software lib/cmsis-svd/data/SiFive-Community/ src/device/sifive/
 	GO111MODULE=off $(GO) fmt ./src/device/sifive
 
+gen-device-kendryte: build/gen-device-svd
+	./build/gen-device-svd -source=https://github.com/posborne/cmsis-svd/tree/master/data/Kendryte-Community -interrupts=software lib/cmsis-svd/data/Kendryte-Community/ src/device/kendryte/
+	GO111MODULE=off $(GO) fmt ./src/device/kendryte
+
 gen-device-stm32: build/gen-device-svd
 	./build/gen-device-svd -source=https://github.com/posborne/cmsis-svd/tree/master/data/STMicro lib/cmsis-svd/data/STMicro/ src/device/stm32/
 	GO111MODULE=off $(GO) fmt ./src/device/stm32

targets/fe310.json

@@ -1,5 +1,19 @@
 {
 	"inherits": ["riscv32"],
 	"features": ["+a", "+c", "+m"],
-	"build-tags": ["fe310", "sifive"]
+	"build-tags": ["fe310", "sifive"],
+	"llvm-target": "riscv32--none",
+	"cflags": [
+		"--target=riscv32--none",
+		"-march=rv32imac",
+		"-mabi=ilp32",
+		"-Os",
+		"-Werror",
+		"-fno-exceptions", "-fno-unwind-tables",
+		"-ffunction-sections", "-fdata-sections"
+	],
+	"ldflags": [
+		"-melf32lriscv",
+		"--gc-sections"
+	]
 }

targets/k210.json

@@ -0,0 +1,19 @@
+{
+	"inherits": ["riscv"],
+	"features": ["+a", "+c", "+m", "+f", "+d"],
+	"build-tags": ["k210", "kendryte"],
+	"llvm-target": "riscv64--none",
+	"cflags": [
+		"--target=riscv64--none",
+		"-march=rv64gc",
+		"-mabi=lp64d",
+		"-Os",
+		"-Werror",
+		"-fno-exceptions", "-fno-unwind-tables",
+		"-ffunction-sections", "-fdata-sections"
+	],
+	"ldflags": [
+		"-melf64lriscv",
+		"--gc-sections"
+	]
+}

targets/maix-bit-mic.json

@@ -0,0 +1,6 @@
+{
+	"inherits": ["k210"],
+	"build-tags": ["maix-bit-mic"],
+	"linkerscript": "targets/maix-bit-mic.ld",
+	"flash-command": "kflash -p /dev/ttyUSB0 {hex}"
+}

targets/maix-bit-mic.ld

@@ -0,0 +1,10 @@
+
+MEMORY
+{
+    FLASH_TEXT (rw) : ORIGIN = 0x80000000, LENGTH = (6 * 1024 * 1024)
+    RAM (xrw)       : ORIGIN = 0x80000000, LENGTH = (6 * 1024 * 1024)
+}
+
+_stack_size = 2K;
+
+INCLUDE "targets/riscv.ld"