efm32hg: add basic makefile, interrupts, device information

Makefile

@@ -31,7 +31,7 @@ TARGETS := stm32/f0 stm32/f1 stm32/f2 stm32/f3 stm32/f4 stm32/f7
 TARGETS += stm32/l0 stm32/l1 stm32/l4
 TARGETS += lpc13xx lpc17xx lpc43xx/m4 lpc43xx/m0
 TARGETS += lm3s lm4f
-TARGETS += efm32/tg efm32/g efm32/lg efm32/gg
+TARGETS += efm32/tg efm32/g efm32/lg efm32/gg efm32/hg
 TARGETS += sam/3a sam/3n sam/3s sam/3u sam/3x
 TARGETS += sam/d
 TARGETS += vf6xx

doc/Makefile

@@ -5,7 +5,7 @@
 
 ARCHS := stm32f0 stm32f1 stm32f2 stm32f3 stm32f4 stm32f7
 ARCHS += stm32l0 stm32l1 stm32l4
-ARCHS += efm32g efm32gg efm32lg efm32tg
+ARCHS += efm32g efm32gg efm32hg efm32lg efm32tg
 ARCHS += lm3s lm4f
 ARCHS += lpc13xx lpc17xx lpc43xx
 ARCHS += sam3a sam3n sam3s sam3u sam3x
@@ -35,6 +35,7 @@ rebuildsources:
 	../scripts/gendoxylist ../lib/stm32/l4 stm32l4
 	../scripts/gendoxylist ../lib/efm32/g efm32g
 	../scripts/gendoxylist ../lib/efm32/gg efm32gg
+	../scripts/gendoxylist ../lib/efm32/hg efm32hg
 	../scripts/gendoxylist ../lib/efm32/lg efm32lg
 	../scripts/gendoxylist ../lib/efm32/tg efm32tg
 	../scripts/gendoxylist ../lib/lm3s lm3s

include/libopencm3/dispatch/nvic.h

@@ -29,6 +29,8 @@
 #	include <libopencm3/efm32/lg/nvic.h>
 #elif defined(EFM32GG)
 #	include <libopencm3/efm32/gg/nvic.h>
+#elif defined(EFM32HG)
+#	include <libopencm3/efm32/hg/nvic.h>
 
 #elif defined(LPC13XX)
 #	include <libopencm3/lpc13xx/nvic.h>

include/libopencm3/efm32/hg/doc-efm32hg.h

@@ -0,0 +1,32 @@
+/** @mainpage libopencm3 EFM32 Happy Gecko
+
+@version 1.0.0
+
+@date 28 January 2018
+
+API documentation for Energy Micro EFM32 Happy Gecko Cortex M0+ series.
+
+LGPL License Terms @ref lgpl_license
+*/
+
+/** @defgroup EFM32LG EFM32 HappyGecko
+Libraries for Energy Micro EFM32 Happy Gecko series.
+
+@version 1.0.0
+
+@date 28 January 2018
+
+LGPL License Terms @ref lgpl_license
+*/
+
+/** @defgroup EFM32HG_defines EFM32 Happy Gecko Defines
+
+@brief Defined Constants and Types for the Energy Micro EFM32 Happy Gecko
+series
+
+@version 1.0.0
+
+@date 28 January 2018
+
+LGPL License Terms @ref lgpl_license
+*/

include/libopencm3/efm32/hg/irq.json

@@ -0,0 +1,29 @@
+{
+    "_source": "The names and sequence are taken from EFM32HG-RM.pdf table 4.1.",
+    "irqs": [
+        "dma",
+        "gpio_even",
+        "timer0",
+        "acmp0",
+        "adc0",
+        "i2c0",
+        "gpio_odd",
+        "timer1",
+        "usart1_rx",
+        "usart1_tx",
+        "leuart0",
+        "pcnt0",
+        "rtc",
+        "cmu",
+        "vcmp",
+        "msc",
+        "aes",
+        "usart0_rx",
+        "usart0_tx",
+        "usb",
+        "timer2"
+    ],
+    "partname_humanreadable": "EFM32 Happy Gecko series",
+    "partname_doxygen": "EFM32HG",
+    "includeguard": "LIBOPENCM3_EFM32HG_NVIC_H"
+}

ld/devices.data

@@ -287,6 +287,9 @@ efm32zg???f8 efm32zg ROM=8K RAM=2K
 efm32zg???f16 efm32zg ROM=16K RAM=4K
 efm32zg???f32 efm32zg ROM=32K RAM=4K
 
+# Happy Gecko
+efm32hg???f64 efm32hg ROM=64K RAM=8K
+
 # Tiny Gecko
 efm32tg108f4 efm32tg ROM=4K RAM=1K
 efm32tg110f4 efm32tg ROM=4K RAM=2K
@@ -448,6 +451,7 @@ lpc43xx END CPU=cortex-m4 FPU=hard-fpv4-sp-d16
 # the efm32 Gecko families
 
 efm32zg END ROM_OFF=0x00000000 RAM_OFF=0x20000000 RAM1_OFF=0x10000000 CPU=cortex-m0plus FPU=soft
+efm32hg END ROM_OFF=0x00000000 RAM_OFF=0x20000000 RAM1_OFF=0x10000000 CPU=cortex-m0plus FPU=soft
 efm32tg END ROM_OFF=0x00000000 RAM_OFF=0x20000000 RAM1_OFF=0x10000000 CPU=cortex-m3 FPU=soft
 efm32g END ROM_OFF=0x00000000 RAM_OFF=0x20000000 RAM1_OFF=0x10000000 CPU=cortex-m3 FPU=soft
 efm32lg END ROM_OFF=0x00000000 RAM_OFF=0x20000000 RAM1_OFF=0x10000000 CPU=cortex-m3 FPU=soft

lib/dispatch/vector_nvic.c

@@ -25,6 +25,8 @@
 #	include "../efm32/lg/vector_nvic.c"
 #elif defined(EFM32GG)
 #	include "../efm32/gg/vector_nvic.c"
+#elif defined(EFM32HG)
+#	include "../efm32/hg/vector_nvic.c"
 
 #elif defined(LPC13XX)
 #	include "../lpc13xx/vector_nvic.c"

lib/efm32/hg/Makefile

@@ -0,0 +1,47 @@
+##
+## This file is part of the libopencm3 project.
+##
+## Copyright (C) 2009 Uwe Hermann <uwe@hermann-uwe.de>
+## Copyright (C) 2012 chrysn <chrysn@fsfe.org>
+## Copyright (C) 2015 Kuldeep Singh Dhaka <kuldeepdhaka9@gmail.com>
+## Copyright (C) 2018 Seb Holzapfel <schnommus@gmail.com>
+##
+## This library is free software: you can redistribute it and/or modify
+## it under the terms of the GNU Lesser General Public License as published by
+## the Free Software Foundation, either version 3 of the License, or
+## (at your option) any later version.
+##
+## This library is distributed in the hope that it will be useful,
+## but WITHOUT ANY WARRANTY; without even the implied warranty of
+## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+## GNU Lesser General Public License for more details.
+##
+## You should have received a copy of the GNU Lesser General Public License
+## along with this library. If not, see <http://www.gnu.org/licenses/>.
+##
+
+LIBNAME		= libopencm3_efm32hg
+SRCLIBDIR	?= ../..
+FAMILY		= EFM32HG
+
+PREFIX		?= arm-none-eabi
+#PREFIX		?= arm-elf
+CC		= $(PREFIX)-gcc
+AR		= $(PREFIX)-ar
+TGT_CFLAGS	= -Os \
+		  -Wall -Wextra -Wimplicit-function-declaration \
+		  -Wredundant-decls -Wmissing-prototypes -Wstrict-prototypes \
+		  -Wundef -Wshadow \
+		  -I../../../include -fno-common \
+		  -mcpu=cortex-m0plus $(FP_FLAGS) -mthumb -Wstrict-prototypes \
+		  -ffunction-sections -fdata-sections -MD -D$(FAMILY)
+TGT_CFLAGS      += $(DEBUG_FLAGS)
+TGT_CFLAGS	+= $(STANDARD_FLAGS)
+
+ARFLAGS		= rcs
+
+OBJS		=
+
+VPATH += ../../usb:../:../../cm3:
+
+include ../../Makefile.include

lib/efm32/hg/libopencm3_efm32hg.ld

@@ -0,0 +1,105 @@
+/*
+ * This file is part of the libopencm3 project.
+ *
+ * Copyright (C) 2009 Uwe Hermann <uwe@hermann-uwe.de>
+ *
+ * This library is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this library.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+/* Generic linker script for EFM32 targets using libopencm3. */
+
+/* Memory regions must be defined in the ld script which includes this one. */
+
+/* Enforce emmition of the vector table. */
+EXTERN (vector_table)
+
+/* Define the entry point of the output file. */
+ENTRY(reset_handler)
+
+/* Define sections. */
+SECTIONS
+{
+	.text : {
+		*(.vectors)	/* Vector table */
+		*(.text*)	/* Program code */
+		. = ALIGN(4);
+		*(.rodata*)	/* Read-only data */
+		. = ALIGN(4);
+	} >rom
+
+	/* C++ Static constructors/destructors, also used for __attribute__
+	 * ((constructor)) and the likes */
+	.preinit_array : {
+		. = ALIGN(4);
+		__preinit_array_start = .;
+		KEEP (*(.preinit_array))
+		__preinit_array_end = .;
+	} >rom
+	.init_array : {
+		. = ALIGN(4);
+		__init_array_start = .;
+		KEEP (*(SORT(.init_array.*)))
+		KEEP (*(.init_array))
+		__init_array_end = .;
+	} >rom
+	.fini_array : {
+		. = ALIGN(4);
+		__fini_array_start = .;
+		KEEP (*(.fini_array))
+		KEEP (*(SORT(.fini_array.*)))
+		__fini_array_end = .;
+	} >rom
+
+	/*
+	 * Another section used by C++ stuff, appears when using newlib with
+	 * 64bit (long long) printf support
+	 */
+	.ARM.extab : {
+		*(.ARM.extab*)
+	} >rom
+	.ARM.exidx : {
+		__exidx_start = .;
+		*(.ARM.exidx*)
+		__exidx_end = .;
+	} >rom
+
+	. = ALIGN(4);
+	_etext = .;
+
+	.data : {
+		_data = .;
+		*(.data*)	/* Read-write initialized data */
+		. = ALIGN(4);
+		_edata = .;
+	} >ram AT >rom
+	_data_loadaddr = LOADADDR(.data);
+
+	.bss : {
+		*(.bss*)	/* Read-write zero initialized data */
+		*(COMMON)
+		. = ALIGN(4);
+		_ebss = .;
+	} >ram
+
+	/*
+	 * The .eh_frame section appears to be used for C++ exception handling.
+	 * You may need to fix this if you're using C++.
+	 */
+	/DISCARD/ : { *(.eh_frame) }
+
+	. = ALIGN(4);
+	end = .;
+}
+
+PROVIDE(_stack = ORIGIN(ram) + LENGTH(ram));