add BSP for SAMD11 variant of Great Scott Gadgets' LUNA boards (SAMD11)

hw/bsp/samd11/boards/luna_d11/board.h

@@ -0,0 +1,46 @@
+/*
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2020, Ha Thach (tinyusb.org)
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ *
+ * This file is part of the TinyUSB stack.
+ */
+
+#ifndef BOARD_H_
+#define BOARD_H_
+
+#ifdef __cplusplus
+ extern "C" {
+#endif
+
+// LED
+#define LED_PIN               PIN_PA27 // pin PA22
+#define LED_STATE_ON          0
+
+// Button
+#define BUTTON_PIN            PIN_PA16 // pin PB22
+#define BUTTON_STATE_ACTIVE   0
+
+#ifdef __cplusplus
+ }
+#endif
+
+#endif /* BOARD_H_ */

hw/bsp/samd11/boards/luna_d11/board.mk

@@ -0,0 +1,11 @@
+CFLAGS += -D__SAMD11D14AM__
+
+# All source paths should be relative to the top level.
+LD_FILE = $(BOARD_PATH)/samd11d14am_flash.ld
+
+# For flash-jlink target
+JLINK_DEVICE = ATSAMD11D14
+
+# flash using dfu-util
+flash: $(BUILD)/$(PROJECT).bin
+	dfu-util -a 0 -d 1d50:615c -D $< || dfu-util -a 0 -d 16d0:05a5 -D $<

hw/bsp/samd11/boards/luna_d11/samd11d14am_flash.ld

@@ -0,0 +1,143 @@
+/**
+ * \file
+ *
+ * \brief Linker script for running in internal FLASH on the SAMD11D14AM
+ *
+ * Copyright (c) 2018 Microchip Technology Inc.
+ *
+ * \asf_license_start
+ *
+ * \page License
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may
+ * not use this file except in compliance with the License.
+ * You may obtain a copy of the Licence at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an AS IS BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * \asf_license_stop
+ *
+ */
+
+
+OUTPUT_FORMAT("elf32-littlearm", "elf32-littlearm", "elf32-littlearm")
+OUTPUT_ARCH(arm)
+SEARCH_DIR(.)
+
+/* Memory Spaces Definitions */
+MEMORY
+{
+  rom      (rx)  : ORIGIN = 0x00000000 + 4K, LENGTH = 0x00004000 - 4K
+  ram      (rwx) : ORIGIN = 0x20000000, LENGTH = 0x00001000
+}
+
+/* The stack size used by the application. NOTE: you need to adjust according to your application. */
+STACK_SIZE = DEFINED(STACK_SIZE) ? STACK_SIZE : DEFINED(__stack_size__) ? __stack_size__ : 0x400;
+
+/* Section Definitions */
+SECTIONS
+{
+    .text :
+    {
+        . = ALIGN(4);
+        _sfixed = .;
+        KEEP(*(.vectors .vectors.*))
+        *(.text .text.* .gnu.linkonce.t.*)
+        *(.glue_7t) *(.glue_7)
+        *(.rodata .rodata* .gnu.linkonce.r.*)
+        *(.ARM.extab* .gnu.linkonce.armextab.*)
+
+        /* Support C constructors, and C destructors in both user code
+           and the C library. This also provides support for C++ code. */
+        . = ALIGN(4);
+        KEEP(*(.init))
+        . = ALIGN(4);
+        __preinit_array_start = .;
+        KEEP (*(.preinit_array))
+        __preinit_array_end = .;
+
+        . = ALIGN(4);
+        __init_array_start = .;
+        KEEP (*(SORT(.init_array.*)))
+        KEEP (*(.init_array))
+        __init_array_end = .;
+
+        . = ALIGN(4);
+        KEEP (*crtbegin.o(.ctors))
+        KEEP (*(EXCLUDE_FILE (*crtend.o) .ctors))
+        KEEP (*(SORT(.ctors.*)))
+        KEEP (*crtend.o(.ctors))
+
+        . = ALIGN(4);
+        KEEP(*(.fini))
+
+        . = ALIGN(4);
+        __fini_array_start = .;
+        KEEP (*(.fini_array))
+        KEEP (*(SORT(.fini_array.*)))
+        __fini_array_end = .;
+
+        KEEP (*crtbegin.o(.dtors))
+        KEEP (*(EXCLUDE_FILE (*crtend.o) .dtors))
+        KEEP (*(SORT(.dtors.*)))
+        KEEP (*crtend.o(.dtors))
+
+        . = ALIGN(4);
+        _efixed = .;            /* End of text section */
+    } > rom
+
+    /* .ARM.exidx is sorted, so has to go in its own output section.  */
+    PROVIDE_HIDDEN (__exidx_start = .);
+    .ARM.exidx :
+    {
+      *(.ARM.exidx* .gnu.linkonce.armexidx.*)
+    } > rom
+    PROVIDE_HIDDEN (__exidx_end = .);
+
+    . = ALIGN(4);
+    _etext = .;
+
+    .relocate : AT (_etext)
+    {
+        . = ALIGN(4);
+        _srelocate = .;
+        *(.ramfunc .ramfunc.*);
+        *(.data .data.*);
+        . = ALIGN(4);
+        _erelocate = .;
+    } > ram
+
+    /* .bss section which is used for uninitialized data */
+    .bss (NOLOAD) :
+    {
+        . = ALIGN(4);
+        _sbss = . ;
+        _szero = .;
+        *(.bss .bss.*)
+        *(COMMON)
+        . = ALIGN(4);
+        _ebss = . ;
+        _ezero = .;
+    } > ram
+
+    /* stack section */
+    .stack (NOLOAD):
+    {
+        . = ALIGN(8);
+        _sstack = .;
+        . = . + STACK_SIZE;
+        . = ALIGN(8);
+        _estack = .;
+    } > ram
+
+    . = ALIGN(4);
+    _end = . ;
+}

hw/bsp/samd11/boards/samd11_xplained/board.h

@@ -0,0 +1,46 @@
+/*
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2020, Ha Thach (tinyusb.org)
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ *
+ * This file is part of the TinyUSB stack.
+ */
+
+#ifndef BOARD_H_
+#define BOARD_H_
+
+#ifdef __cplusplus
+ extern "C" {
+#endif
+
+// LED
+#define LED_PIN               PIN_PA16 // pin PA22
+#define LED_STATE_ON          0
+
+// Button
+#define BUTTON_PIN            PIN_PA14 // pin PB22
+#define BUTTON_STATE_ACTIVE   0
+
+#ifdef __cplusplus
+ }
+#endif
+
+#endif /* BOARD_H_ */

hw/bsp/samd11/boards/samd11_xplained/board.mk

@@ -0,0 +1,12 @@
+CFLAGS += -D__SAMD11D14AM__
+
+# All source paths should be relative to the top level.
+LD_FILE = $(BOARD_PATH)/samd11d14am_flash.ld
+
+# For flash-jlink target
+JLINK_DEVICE = ATSAMD11D14
+
+
+# flash using edbg
+flash: $(BUILD)/$(PROJECT).bin
+	edbg -b -t samd11 -e -pv -f $<

hw/bsp/samd11_xplained/samd11_xplained.c → hw/bsp/samd11/family.c

@@ -24,9 +24,10 @@
  * This file is part of the TinyUSB stack.
  */
 
+#include "sam.h"
 #include "bsp/board.h"
+#include "board.h"
 
-#include "sam.h"
 #include "hal/include/hal_gpio.h"
 #include "hal/include/hal_init.h"
 #include "hri/hri_nvmctrl_d11.h"
@@ -47,8 +48,6 @@ void USB_Handler(void)
 //--------------------------------------------------------------------+
 // MACRO TYPEDEF CONSTANT ENUM DECLARATION
 //--------------------------------------------------------------------+
-#define LED_PIN      PIN_PA16 // pin PA22
-#define BUTTON_PIN   PIN_PA14 // pin PB22
 
 /* Referenced GCLKs, should be initialized firstly */
 #define _GCLK_INIT_1ST (1 << 0 | 1 << 1)
@@ -106,13 +105,12 @@ void board_init(void)
 
 void board_led_write(bool state)
 {
-  gpio_set_pin_level(LED_PIN, state);
+  gpio_set_pin_level(LED_PIN, state ? LED_STATE_ON : (1-LED_STATE_ON));
 }
 
 uint32_t board_button_read(void)
 {
-  // button is active low
-  return gpio_get_pin_level(BUTTON_PIN) ? 0 : 1;
+  return BUTTON_STATE_ACTIVE == gpio_get_pin_level(BUTTON_PIN);
 }
 
 int board_uart_read(uint8_t* buf, int len)

hw/bsp/samd11_xplained/board.mk → hw/bsp/samd11/family.mk

@@ -1,16 +1,15 @@
+
+include $(TOP)/$(BOARD_PATH)/board.mk
+
 CFLAGS += \
   -mthumb \
   -mabi=aapcs-linux \
   -mcpu=cortex-m0plus \
   -nostdlib -nostartfiles \
-  -D__SAMD11D14AM__ \
   -DCONF_DFLL_OVERWRITE_CALIBRATION=0 \
   -DOSC32K_OVERWRITE_CALIBRATION=0 \
   -DCFG_TUSB_MCU=OPT_MCU_SAMD11
 
-# All source paths should be relative to the top level.
-LD_FILE = hw/bsp/$(BOARD)/samd11d14am_flash.ld
-
 SRC_C += \
 	hw/mcu/microchip/samd11/gcc/gcc/startup_samd11.c \
 	hw/mcu/microchip/samd11/gcc/system_samd11.c \
@@ -20,6 +19,7 @@ SRC_C += \
 	hw/mcu/microchip/samd11/hal/src/hal_atomic.c
 
 INC += \
+	$(TOP)/$(BOARD_PATH) \
 	$(TOP)/hw/mcu/microchip/samd11/ \
 	$(TOP)/hw/mcu/microchip/samd11/config \
 	$(TOP)/hw/mcu/microchip/samd11/include \
@@ -37,10 +37,3 @@ CHIP_FAMILY = samd
 
 # For freeRTOS port source
 FREERTOS_PORT = ARM_CM0
-
-# For flash-jlink target
-JLINK_DEVICE = ATSAMD11D14
-
-# flash using edbg
-flash: $(BUILD)/$(PROJECT).bin
-	edbg -b -t samd11 -e -pv -f $<