diff options
Diffstat (limited to 'VexRiscvSocSoftware/projects/briey/libs')
| -rw-r--r-- | VexRiscvSocSoftware/projects/briey/libs/briey.h | 36 | ||||
| -rwxr-xr-x | VexRiscvSocSoftware/projects/briey/libs/linker.ld | 122 | ||||
| -rw-r--r-- | VexRiscvSocSoftware/projects/briey/libs/makefile | 1 |
3 files changed, 159 insertions, 0 deletions
diff --git a/VexRiscvSocSoftware/projects/briey/libs/briey.h b/VexRiscvSocSoftware/projects/briey/libs/briey.h new file mode 100644 index 0000000..0426cee --- /dev/null +++ b/VexRiscvSocSoftware/projects/briey/libs/briey.h @@ -0,0 +1,36 @@ +/* + * briey.h + * + * Created on: Aug 24, 2016 + * Author: clp + */ + +#ifndef BRIEY_H_ +#define BRIEY_H_ + +#include "timer.h" +#include "prescaler.h" +#include "interrupt.h" +#include "uart.h" +#include "vga.h" +#include "gpio.h" + +#define CORE_HZ 50000000 + +#define GPIO_A_BASE ((Gpio_Reg*)(0xF0000000)) +#define GPIO_B_BASE ((Gpio_Reg*)(0xF0001000)) +#define UART ((Uart_Reg*)(0xF0010000)) +#define VGA_BASE ((Vga_Reg*)(0xF0030000)) + + +#define TIMER_PRESCALER ((Prescaler_Reg*)0xF0020000) +#define TIMER_INTERRUPT ((InterruptCtrl_Reg*)0xF0020010) +#define TIMER_A ((Timer_Reg*)0xF0020040) +#define TIMER_B ((Timer_Reg*)0xF0020050) +#define TIMER_C ((Timer_Reg*)0xF0020060) +#define TIMER_D ((Timer_Reg*)0xF0020070) + +#define UART_SAMPLE_PER_BAUD 8 + + +#endif /* BRIEY_H_ */ diff --git a/VexRiscvSocSoftware/projects/briey/libs/linker.ld b/VexRiscvSocSoftware/projects/briey/libs/linker.ld new file mode 100755 index 0000000..1f7f96d --- /dev/null +++ b/VexRiscvSocSoftware/projects/briey/libs/linker.ld @@ -0,0 +1,122 @@ +/*======================================================================*/ +/* Proxy kernel linker script */ +/*======================================================================*/ +/* This is the linker script used when building the proxy kernel. */ + +/*----------------------------------------------------------------------*/ +/* Setup */ +/*----------------------------------------------------------------------*/ + +/* The OUTPUT_ARCH command specifies the machine architecture where the + argument is one of the names used in the BFD library. More + specifically one of the entires in bfd/cpu-mips.c */ + +/* +This is free and unencumbered software released into the public domain. + +Anyone is free to copy, modify, publish, use, compile, sell, or +distribute this software, either in source code form or as a compiled +binary, for any purpose, commercial or non-commercial, and by any +means. +*/ +OUTPUT_FORMAT("elf32-littleriscv", "elf32-littleriscv", "elf32-littleriscv") +OUTPUT_ARCH(riscv) +ENTRY(crtStart) + +MEMORY { + onChipRam (W!RX)/*(RX)*/ : ORIGIN = 0x80000000, LENGTH = 4K + sdram (W!RX) : ORIGIN = 0x40000000, LENGTH = 64M +} +_stack_size = 2k; +_heap_size = 0k; + +SECTIONS /*TODO don't initialize useless things, restore literal loading that use 2 instruction in place of onChipRam word */ +{ + .vector : { + *crt.o(.text); + } > onChipRam + + .memory : { + *(.text); + end = .; + } > sdram + + .rodata : + { + *(.rdata) + *(.rodata .rodata.*) + *(.gnu.linkonce.r.*) + } > sdram + + .ctors : + { + . = ALIGN(4); + _ctors_start = .; + KEEP(*(.init_array*)) + KEEP (*(SORT(.ctors.*))) + KEEP (*(.ctors)) + . = ALIGN(4); + _ctors_end = .; + } > sdram + + .data : + { + *(.rdata) + *(.rodata .rodata.*) + *(.gnu.linkonce.r.*) + *(.data .data.*) + *(.gnu.linkonce.d.*) + . = ALIGN(8); + PROVIDE( __global_pointer$ = . + 0x800 ); + *(.sdata .sdata.*) + *(.gnu.linkonce.s.*) + . = ALIGN(8); + *(.srodata.cst16) + *(.srodata.cst8) + *(.srodata.cst4) + *(.srodata.cst2) + *(.srodata .srodata.*) + } > sdram + + .bss (NOLOAD) : { + . = ALIGN(4); + /* This is used by the startup in order to initialize the .bss secion */ + _bss_start = .; + *(.sbss*) + *(.gnu.linkonce.sb.*) + *(.bss .bss.*) + *(.gnu.linkonce.b.*) + *(COMMON) + . = ALIGN(4); + _bss_end = .; + } > sdram + + .noinit (NOLOAD) : { + . = ALIGN(4); + *(.noinit .noinit.*) + . = ALIGN(4); + } > sdram + + + ._user_heap (NOLOAD): + { + . = ALIGN(8); + PROVIDE ( end = . ); + PROVIDE ( _end = . ); + PROVIDE ( _heap_start = .); + . = . + _heap_size; + . = ALIGN(8); + PROVIDE ( _heap_end = .); + } > sdram + + ._stack (NOLOAD): + { + . = ALIGN(16); + PROVIDE (_stack_end = .); + . = . + _stack_size; + . = ALIGN(16); + PROVIDE (_stack_start = .); + } > onChipRam + + +} diff --git a/VexRiscvSocSoftware/projects/briey/libs/makefile b/VexRiscvSocSoftware/projects/briey/libs/makefile new file mode 100644 index 0000000..63dc497 --- /dev/null +++ b/VexRiscvSocSoftware/projects/briey/libs/makefile @@ -0,0 +1 @@ +include ../../../resources/recursive.mk
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