diff options
Diffstat (limited to 'libopencm3/lib/efm32/efm32tg')
| -rw-r--r-- | libopencm3/lib/efm32/efm32tg/Makefile | 43 | ||||
| -rw-r--r-- | libopencm3/lib/efm32/efm32tg/libopencm3_efm32tg.ld | 106 | ||||
| -rw-r--r-- | libopencm3/lib/efm32/efm32tg/libopencm3_efm32tg840f32.ld | 15 |
3 files changed, 164 insertions, 0 deletions
diff --git a/libopencm3/lib/efm32/efm32tg/Makefile b/libopencm3/lib/efm32/efm32tg/Makefile new file mode 100644 index 0000000..46de193 --- /dev/null +++ b/libopencm3/lib/efm32/efm32tg/Makefile @@ -0,0 +1,43 @@ +## +## This file is part of the libopencm3 project. +## +## Copyright (C) 2009 Uwe Hermann <uwe@hermann-uwe.de> +## Copyright (C) 2012 chrysn <chrysn@fsfe.org> +## +## 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_efm32tg +SRCLIBDIR ?= ../.. +FAMILY = EFM32TG + +PREFIX ?= arm-none-eabi +#PREFIX ?= arm-elf +CC = $(PREFIX)-gcc +AR = $(PREFIX)-ar +CFLAGS = -Os -g \ + -Wall -Wextra -Wimplicit-function-declaration \ + -Wredundant-decls -Wmissing-prototypes -Wstrict-prototypes \ + -Wundef -Wshadow \ + -I../../../include -fno-common \ + -mcpu=cortex-m3 $(FP_FLAGS) -mthumb -Wstrict-prototypes \ + -ffunction-sections -fdata-sections -MD -D$(FAMILY) +# ARFLAGS = rcsv +ARFLAGS = rcs +OBJS = + +VPATH += ../:../../cm3 + +include ../../Makefile.include + diff --git a/libopencm3/lib/efm32/efm32tg/libopencm3_efm32tg.ld b/libopencm3/lib/efm32/efm32tg/libopencm3_efm32tg.ld new file mode 100644 index 0000000..87d6ee6 --- /dev/null +++ b/libopencm3/lib/efm32/efm32tg/libopencm3_efm32tg.ld @@ -0,0 +1,106 @@ +/* + * 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)); + diff --git a/libopencm3/lib/efm32/efm32tg/libopencm3_efm32tg840f32.ld b/libopencm3/lib/efm32/efm32tg/libopencm3_efm32tg840f32.ld new file mode 100644 index 0000000..2cb8daf --- /dev/null +++ b/libopencm3/lib/efm32/efm32tg/libopencm3_efm32tg840f32.ld @@ -0,0 +1,15 @@ +/* lengths from d011_efm32tg840_datasheet.pdf table 1.1, offset from + * d0034_efm32tg_reference_manual.pdf figure 5.2. + * + * the origins and memory structure are constant over all tinygeckos, but the + * MEMORY section requires the use of constants, and has thus to be duplicated + * over the chip variants. + * */ + +MEMORY +{ + rom (rx) : ORIGIN = 0, LENGTH = 32k + ram (rwx) : ORIGIN = 0x20000000, LENGTH = 4k +} + +INCLUDE libopencm3_efm32tg.ld; |