add ls2k bsp

bsp/ls2kdev/.config

+#
+# Automatically generated file; DO NOT EDIT.
+# RT-Thread Configuration
+#
+
+#
+# RT-Thread Kernel
+#
+CONFIG_RT_NAME_MAX=8
+# CONFIG_RT_USING_ARCH_DATA_TYPE is not set
+# CONFIG_RT_USING_SMP is not set
+CONFIG_RT_ALIGN_SIZE=4
+# CONFIG_RT_THREAD_PRIORITY_8 is not set
+CONFIG_RT_THREAD_PRIORITY_32=y
+# CONFIG_RT_THREAD_PRIORITY_256 is not set
+CONFIG_RT_THREAD_PRIORITY_MAX=32
+CONFIG_RT_TICK_PER_SECOND=100
+CONFIG_RT_USING_OVERFLOW_CHECK=y
+CONFIG_RT_USING_HOOK=y
+CONFIG_RT_USING_IDLE_HOOK=y
+CONFIG_RT_IDLE_HOOK_LIST_SIZE=4
+CONFIG_IDLE_THREAD_STACK_SIZE=2048
+CONFIG_RT_USING_TIMER_SOFT=y
+CONFIG_RT_TIMER_THREAD_PRIO=4
+CONFIG_RT_TIMER_THREAD_STACK_SIZE=2048
+CONFIG_RT_DEBUG=y
+# CONFIG_RT_DEBUG_COLOR is not set
+# CONFIG_RT_DEBUG_INIT_CONFIG is not set
+# CONFIG_RT_DEBUG_THREAD_CONFIG is not set
+# CONFIG_RT_DEBUG_SCHEDULER_CONFIG is not set
+# CONFIG_RT_DEBUG_IPC_CONFIG is not set
+# CONFIG_RT_DEBUG_TIMER_CONFIG is not set
+# CONFIG_RT_DEBUG_IRQ_CONFIG is not set
+# CONFIG_RT_DEBUG_MEM_CONFIG is not set
+# CONFIG_RT_DEBUG_SLAB_CONFIG is not set
+# CONFIG_RT_DEBUG_MEMHEAP_CONFIG is not set
+# CONFIG_RT_DEBUG_MODULE_CONFIG is not set
+
+#
+# Inter-Thread communication
+#
+CONFIG_RT_USING_SEMAPHORE=y
+CONFIG_RT_USING_MUTEX=y
+CONFIG_RT_USING_EVENT=y
+CONFIG_RT_USING_MAILBOX=y
+CONFIG_RT_USING_MESSAGEQUEUE=y
+# CONFIG_RT_USING_SIGNALS is not set
+
+#
+# Memory Management
+#
+CONFIG_RT_USING_MEMPOOL=y
+# CONFIG_RT_USING_MEMHEAP is not set
+# CONFIG_RT_USING_NOHEAP is not set
+CONFIG_RT_USING_SMALL_MEM=y
+# CONFIG_RT_USING_SLAB is not set
+# CONFIG_RT_USING_MEMTRACE is not set
+CONFIG_RT_USING_HEAP=y
+
+#
+# Kernel Device Object
+#
+CONFIG_RT_USING_DEVICE=y
+# CONFIG_RT_USING_DEVICE_OPS is not set
+# CONFIG_RT_USING_INTERRUPT_INFO is not set
+CONFIG_RT_USING_CONSOLE=y
+CONFIG_RT_CONSOLEBUF_SIZE=128
+CONFIG_RT_CONSOLE_DEVICE_NAME="uart"
+CONFIG_RT_VER_NUM=0x40003
+# CONFIG_RT_USING_CPU_FFS is not set
+CONFIG_ARCH_MIPS64=y
+# CONFIG_ARCH_CPU_STACK_GROWS_UPWARD is not set
+
+#
+# RT-Thread Components
+#
+CONFIG_RT_USING_COMPONENTS_INIT=y
+CONFIG_RT_USING_USER_MAIN=y
+CONFIG_RT_MAIN_THREAD_STACK_SIZE=2048
+CONFIG_RT_MAIN_THREAD_PRIORITY=10
+
+#
+# C++ features
+#
+# CONFIG_RT_USING_CPLUSPLUS is not set
+
+#
+# Command shell
+#
+CONFIG_RT_USING_FINSH=y
+CONFIG_FINSH_THREAD_NAME="tshell"
+CONFIG_FINSH_USING_HISTORY=y
+CONFIG_FINSH_HISTORY_LINES=5
+CONFIG_FINSH_USING_SYMTAB=y
+CONFIG_FINSH_USING_DESCRIPTION=y
+# CONFIG_FINSH_ECHO_DISABLE_DEFAULT is not set
+CONFIG_FINSH_THREAD_PRIORITY=20
+CONFIG_FINSH_THREAD_STACK_SIZE=4096
+CONFIG_FINSH_CMD_SIZE=80
+# CONFIG_FINSH_USING_AUTH is not set
+CONFIG_FINSH_USING_MSH=y
+CONFIG_FINSH_USING_MSH_DEFAULT=y
+# CONFIG_FINSH_USING_MSH_ONLY is not set
+CONFIG_FINSH_ARG_MAX=10
+
+#
+# Device virtual file system
+#
+CONFIG_RT_USING_DFS=y
+CONFIG_DFS_USING_WORKDIR=y
+CONFIG_DFS_FILESYSTEMS_MAX=2
+CONFIG_DFS_FILESYSTEM_TYPES_MAX=2
+CONFIG_DFS_FD_MAX=16
+# CONFIG_RT_USING_DFS_MNTTABLE is not set
+# CONFIG_RT_USING_DFS_ELMFAT is not set
+CONFIG_RT_USING_DFS_DEVFS=y
+# CONFIG_RT_USING_DFS_ROMFS is not set
+# CONFIG_RT_USING_DFS_RAMFS is not set
+# CONFIG_RT_USING_DFS_UFFS is not set
+# CONFIG_RT_USING_DFS_JFFS2 is not set
+
+#
+# Device Drivers
+#
+CONFIG_RT_USING_DEVICE_IPC=y
+CONFIG_RT_PIPE_BUFSZ=512
+# CONFIG_RT_USING_SYSTEM_WORKQUEUE is not set
+CONFIG_RT_USING_SERIAL=y
+CONFIG_RT_SERIAL_USING_DMA=y
+CONFIG_RT_SERIAL_RB_BUFSZ=64
+# CONFIG_RT_USING_CAN is not set
+# CONFIG_RT_USING_HWTIMER is not set
+# CONFIG_RT_USING_CPUTIME is not set
+# CONFIG_RT_USING_I2C is not set
+CONFIG_RT_USING_PIN=y
+# CONFIG_RT_USING_ADC is not set
+# CONFIG_RT_USING_PWM is not set
+# CONFIG_RT_USING_MTD_NOR is not set
+# CONFIG_RT_USING_MTD_NAND is not set
+# CONFIG_RT_USING_PM is not set
+# CONFIG_RT_USING_RTC is not set
+# CONFIG_RT_USING_SDIO is not set
+# CONFIG_RT_USING_SPI is not set
+# CONFIG_RT_USING_WDT is not set
+# CONFIG_RT_USING_AUDIO is not set
+# CONFIG_RT_USING_SENSOR is not set
+# CONFIG_RT_USING_TOUCH is not set
+# CONFIG_RT_USING_HWCRYPTO is not set
+# CONFIG_RT_USING_PULSE_ENCODER is not set
+# CONFIG_RT_USING_INPUT_CAPTURE is not set
+# CONFIG_RT_USING_WIFI is not set
+
+#
+# Using USB
+#
+# CONFIG_RT_USING_USB_HOST is not set
+# CONFIG_RT_USING_USB_DEVICE is not set
+
+#
+# POSIX layer and C standard library
+#
+CONFIG_RT_USING_LIBC=y
+# CONFIG_RT_USING_PTHREADS is not set
+CONFIG_RT_USING_POSIX=y
+# CONFIG_RT_USING_POSIX_MMAP is not set
+# CONFIG_RT_USING_POSIX_TERMIOS is not set
+# CONFIG_RT_USING_POSIX_AIO is not set
+# CONFIG_RT_USING_MODULE is not set
+
+#
+# Network
+#
+
+#
+# Socket abstraction layer
+#
+# CONFIG_RT_USING_SAL is not set
+
+#
+# Network interface device
+#
+# CONFIG_RT_USING_NETDEV is not set
+
+#
+# light weight TCP/IP stack
+#
+# CONFIG_RT_USING_LWIP is not set
+
+#
+# AT commands
+#
+# CONFIG_RT_USING_AT is not set
+
+#
+# VBUS(Virtual Software BUS)
+#
+# CONFIG_RT_USING_VBUS is not set
+
+#
+# Utilities
+#
+# CONFIG_RT_USING_RYM is not set
+# CONFIG_RT_USING_ULOG is not set
+# CONFIG_RT_USING_UTEST is not set
+
+#
+# RT-Thread MIPS CPU
+#
+# CONFIG_RT_USING_FPU is not set
+
+#
+# RT-Thread online packages
+#
+
+#
+# IoT - internet of things
+#
+# CONFIG_PKG_USING_PAHOMQTT is not set
+# CONFIG_PKG_USING_WEBCLIENT is not set
+# CONFIG_PKG_USING_WEBNET is not set
+# CONFIG_PKG_USING_MONGOOSE is not set
+# CONFIG_PKG_USING_MYMQTT is not set
+# CONFIG_PKG_USING_WEBTERMINAL is not set
+# CONFIG_PKG_USING_CJSON is not set
+# CONFIG_PKG_USING_JSMN is not set
+# CONFIG_PKG_USING_LIBMODBUS is not set
+# CONFIG_PKG_USING_FREEMODBUS is not set
+# CONFIG_PKG_USING_LJSON is not set
+# CONFIG_PKG_USING_EZXML is not set
+# CONFIG_PKG_USING_NANOPB is not set
+
+#
+# Wi-Fi
+#
+
+#
+# Marvell WiFi
+#
+# CONFIG_PKG_USING_WLANMARVELL is not set
+
+#
+# Wiced WiFi
+#
+# CONFIG_PKG_USING_WLAN_WICED is not set
+# CONFIG_PKG_USING_RW007 is not set
+# CONFIG_PKG_USING_COAP is not set
+# CONFIG_PKG_USING_NOPOLL is not set
+# CONFIG_PKG_USING_NETUTILS is not set
+# CONFIG_PKG_USING_PPP_DEVICE is not set
+# CONFIG_PKG_USING_AT_DEVICE is not set
+# CONFIG_PKG_USING_ATSRV_SOCKET is not set
+# CONFIG_PKG_USING_WIZNET is not set
+
+#
+# IoT Cloud
+#
+# CONFIG_PKG_USING_ONENET is not set
+# CONFIG_PKG_USING_GAGENT_CLOUD is not set
+# CONFIG_PKG_USING_ALI_IOTKIT is not set
+# CONFIG_PKG_USING_AZURE is not set
+# CONFIG_PKG_USING_TENCENT_IOTHUB is not set
+# CONFIG_PKG_USING_JIOT-C-SDK is not set
+# CONFIG_PKG_USING_NIMBLE is not set
+# CONFIG_PKG_USING_OTA_DOWNLOADER is not set
+# CONFIG_PKG_USING_IPMSG is not set
+# CONFIG_PKG_USING_LSSDP is not set
+# CONFIG_PKG_USING_AIRKISS_OPEN is not set
+# CONFIG_PKG_USING_LIBRWS is not set
+# CONFIG_PKG_USING_TCPSERVER is not set
+# CONFIG_PKG_USING_PROTOBUF_C is not set
+# CONFIG_PKG_USING_ONNX_PARSER is not set
+# CONFIG_PKG_USING_ONNX_BACKEND is not set
+# CONFIG_PKG_USING_DLT645 is not set
+# CONFIG_PKG_USING_QXWZ is not set
+# CONFIG_PKG_USING_SMTP_CLIENT is not set
+# CONFIG_PKG_USING_ABUP_FOTA is not set
+
+#
+# security packages
+#
+# CONFIG_PKG_USING_MBEDTLS is not set
+# CONFIG_PKG_USING_libsodium is not set
+# CONFIG_PKG_USING_TINYCRYPT is not set
+
+#
+# language packages
+#
+# CONFIG_PKG_USING_LUA is not set
+# CONFIG_PKG_USING_JERRYSCRIPT is not set
+# CONFIG_PKG_USING_MICROPYTHON is not set
+
+#
+# multimedia packages
+#
+# CONFIG_PKG_USING_OPENMV is not set
+# CONFIG_PKG_USING_MUPDF is not set
+# CONFIG_PKG_USING_STEMWIN is not set
+# CONFIG_PKG_USING_WAVPLAYER is not set
+# CONFIG_PKG_USING_TJPGD is not set
+
+#
+# tools packages
+#
+# CONFIG_PKG_USING_CMBACKTRACE is not set
+# CONFIG_PKG_USING_EASYFLASH is not set
+# CONFIG_PKG_USING_EASYLOGGER is not set
+# CONFIG_PKG_USING_SYSTEMVIEW is not set
+# CONFIG_PKG_USING_RDB is not set
+# CONFIG_PKG_USING_QRCODE is not set
+# CONFIG_PKG_USING_ULOG_EASYFLASH is not set
+# CONFIG_PKG_USING_ADBD is not set
+# CONFIG_PKG_USING_COREMARK is not set
+# CONFIG_PKG_USING_DHRYSTONE is not set
+# CONFIG_PKG_USING_NR_MICRO_SHELL is not set
+# CONFIG_PKG_USING_CHINESE_FONT_LIBRARY is not set
+# CONFIG_PKG_USING_LUNAR_CALENDAR is not set
+# CONFIG_PKG_USING_BS8116A is not set
+
+#
+# system packages
+#
+# CONFIG_PKG_USING_GUIENGINE is not set
+# CONFIG_PKG_USING_CAIRO is not set
+# CONFIG_PKG_USING_PIXMAN is not set
+# CONFIG_PKG_USING_LWEXT4 is not set
+# CONFIG_PKG_USING_PARTITION is not set
+# CONFIG_PKG_USING_FAL is not set
+# CONFIG_PKG_USING_SQLITE is not set
+# CONFIG_PKG_USING_RTI is not set
+# CONFIG_PKG_USING_LITTLEVGL2RTT is not set
+# CONFIG_PKG_USING_CMSIS is not set
+# CONFIG_PKG_USING_DFS_YAFFS is not set
+# CONFIG_PKG_USING_LITTLEFS is not set
+# CONFIG_PKG_USING_THREAD_POOL is not set
+# CONFIG_PKG_USING_ROBOTS is not set
+# CONFIG_PKG_USING_EV is not set
+
+#
+# peripheral libraries and drivers
+#
+# CONFIG_PKG_USING_SENSORS_DRIVERS is not set
+# CONFIG_PKG_USING_REALTEK_AMEBA is not set
+# CONFIG_PKG_USING_SHT2X is not set
+# CONFIG_PKG_USING_SHT3X is not set
+# CONFIG_PKG_USING_STM32_SDIO is not set
+# CONFIG_PKG_USING_ICM20608 is not set
+# CONFIG_PKG_USING_U8G2 is not set
+# CONFIG_PKG_USING_BUTTON is not set
+# CONFIG_PKG_USING_PCF8574 is not set
+# CONFIG_PKG_USING_SX12XX is not set
+# CONFIG_PKG_USING_SIGNAL_LED is not set
+# CONFIG_PKG_USING_LEDBLINK is not set
+# CONFIG_PKG_USING_WM_LIBRARIES is not set
+# CONFIG_PKG_USING_KENDRYTE_SDK is not set
+# CONFIG_PKG_USING_INFRARED is not set
+# CONFIG_PKG_USING_ROSSERIAL is not set
+# CONFIG_PKG_USING_AGILE_BUTTON is not set
+# CONFIG_PKG_USING_AGILE_LED is not set
+# CONFIG_PKG_USING_AT24CXX is not set
+# CONFIG_PKG_USING_MOTIONDRIVER2RTT is not set
+# CONFIG_PKG_USING_AD7746 is not set
+# CONFIG_PKG_USING_PCA9685 is not set
+# CONFIG_PKG_USING_I2C_TOOLS is not set
+# CONFIG_PKG_USING_NRF24L01 is not set
+# CONFIG_PKG_USING_TOUCH_DRIVERS is not set
+# CONFIG_PKG_USING_MAX17048 is not set
+# CONFIG_PKG_USING_RPLIDAR is not set
+# CONFIG_PKG_USING_AS608 is not set
+
+#
+# miscellaneous packages
+#
+# CONFIG_PKG_USING_LIBCSV is not set
+# CONFIG_PKG_USING_OPTPARSE is not set
+# CONFIG_PKG_USING_FASTLZ is not set
+# CONFIG_PKG_USING_MINILZO is not set
+# CONFIG_PKG_USING_QUICKLZ is not set
+# CONFIG_PKG_USING_MULTIBUTTON is not set
+# CONFIG_PKG_USING_FLEXIBLE_BUTTON is not set
+# CONFIG_PKG_USING_CANFESTIVAL is not set
+# CONFIG_PKG_USING_ZLIB is not set
+# CONFIG_PKG_USING_DSTR is not set
+# CONFIG_PKG_USING_TINYFRAME is not set
+# CONFIG_PKG_USING_KENDRYTE_DEMO is not set
+# CONFIG_PKG_USING_DIGITALCTRL is not set
+# CONFIG_PKG_USING_UPACKER is not set
+# CONFIG_PKG_USING_UPARAM is not set
+
+#
+# samples: kernel and components samples
+#
+# CONFIG_PKG_USING_KERNEL_SAMPLES is not set
+# CONFIG_PKG_USING_FILESYSTEM_SAMPLES is not set
+# CONFIG_PKG_USING_NETWORK_SAMPLES is not set
+# CONFIG_PKG_USING_PERIPHERAL_SAMPLES is not set
+# CONFIG_PKG_USING_HELLO is not set
+# CONFIG_PKG_USING_VI is not set
+# CONFIG_PKG_USING_NNOM is not set
+# CONFIG_PKG_USING_LIBANN is not set
+# CONFIG_PKG_USING_ELAPACK is not set
+# CONFIG_PKG_USING_ARMv7M_DWT is not set
+# CONFIG_PKG_USING_VT100 is not set
+# CONFIG_PKG_USING_ULAPACK is not set
+# CONFIG_PKG_USING_UKAL is not set
+
+#
+# Privated Packages of RealThread
+#
+# CONFIG_PKG_USING_CODEC is not set
+# CONFIG_PKG_USING_PLAYER is not set
+# CONFIG_PKG_USING_MPLAYER is not set
+# CONFIG_PKG_USING_PERSIMMON_SRC is not set
+# CONFIG_PKG_USING_JS_PERSIMMON is not set
+# CONFIG_PKG_USING_JERRYSCRIPT_WIN32 is not set
+
+#
+# Network Utilities
+#
+# CONFIG_PKG_USING_WICED is not set
+# CONFIG_PKG_USING_CLOUDSDK is not set
+# CONFIG_PKG_USING_POWER_MANAGER is not set
+# CONFIG_PKG_USING_RT_OTA is not set
+# CONFIG_PKG_USING_RDBD_SRC is not set
+# CONFIG_PKG_USING_RTINSIGHT is not set
+# CONFIG_PKG_USING_SMARTCONFIG is not set
+# CONFIG_PKG_USING_RTX is not set
+# CONFIG_RT_USING_TESTCASE is not set
+# CONFIG_PKG_USING_NGHTTP2 is not set
+# CONFIG_PKG_USING_AVS is not set
+# CONFIG_PKG_USING_JOYLINK is not set
+# CONFIG_PKG_USING_STS is not set
+# CONFIG_PKG_USING_DLMS is not set
+# CONFIG_PKG_USING_AUDIO_FRAMEWORK is not set
+# CONFIG_PKG_USING_ZBAR is not set
+CONFIG_SOC_LS2K1000=y

bsp/ls2kdev/Kconfig

+mainmenu "RT-Thread Configuration"
+
+config BSP_DIR
+    string
+    option env="BSP_ROOT"
+    default "."
+
+config RTT_DIR
+    string
+    option env="RTT_ROOT"
+    default "../.."
+
+# you can change the RTT_ROOT default "../.." to your rtthread_root,
+# example : default "F:/git_repositories/rt-thread"
+
+config PKGS_DIR
+    string
+    option env="PKGS_ROOT"
+    default "packages"
+
+source "$RTT_DIR/Kconfig"
+source "$RTT_DIR/libcpu/mips/common/Kconfig"
+source "$PKGS_DIR/Kconfig"
+
+config SOC_LS2K1000
+    bool
+    select ARCH_MIPS64
+    select RT_USING_COMPONENTS_INIT
+    select RT_USING_USER_MAIN
+    select RT_USING_DEVICE
+    default y
+    
\ No newline at end of file

bsp/ls2kdev/README.md

+ls2k 板级支持包
+
+
+---
+
+## 1. 简介
+
+本bsp在龙芯派上运行
\ No newline at end of file

bsp/ls2kdev/SConscript

+from building import *
+
+cwd  = GetCurrentDir()
+objs = []
+list = os.listdir(cwd)
+
+for d in list:
+    path = os.path.join(cwd, d)
+    if os.path.isfile(os.path.join(path, 'SConscript')):
+        objs = objs + SConscript(os.path.join(d, 'SConscript'))
+
+Return('objs')

bsp/ls2kdev/SConstruct

+import os
+import sys
+import rtconfig
+
+from rtconfig import RTT_ROOT
+
+sys.path = sys.path + [os.path.join(RTT_ROOT, 'tools')]
+from building import *
+
+TARGET = 'rtthread.' + rtconfig.TARGET_EXT
+
+rtconfig.AFLAGS += ' -I' + str(Dir('#'))
+
+DefaultEnvironment(tools=[])
+env = Environment(tools = ['mingw'],
+	AS = rtconfig.AS, ASFLAGS = rtconfig.AFLAGS,
+	CC = rtconfig.CC, CCFLAGS = rtconfig.CFLAGS,
+	AR = rtconfig.AR, ARFLAGS = '-rc',
+	LINK = rtconfig.LINK, LINKFLAGS = rtconfig.LFLAGS)
+env.PrependENVPath('PATH', rtconfig.EXEC_PATH)
+
+Export('RTT_ROOT')
+Export('rtconfig')
+
+
+# prepare building environment
+objs = PrepareBuilding(env, RTT_ROOT)
+
+rtconfig.LFLAGS += " -Ttext 0xffffffff80200000"
+env.Replace(LINKFLAGS = rtconfig.LFLAGS)
+
+if GetDepend('RT_USING_FPU'):
+    env['CCFLAGS']   = env['CCFLAGS'].replace('-msoft-float', '-mhard-float')
+    env['ASFLAGS']   = env['ASFLAGS'].replace('-msoft-float', '-mhard-float')
+    env['CXXFLAGS']  = env['CXXFLAGS'].replace('-msoft-float', '-mhard-float')
+    env['LINKFLAGS'] = env['LINKFLAGS'].replace('-msoft-float', '-mhard-float')
+
+# make a building
+DoBuilding(TARGET, objs)

bsp/ls2kdev/applications/SConscript

+from building import *
+
+cwd     = GetCurrentDir()
+src	= Glob('*.c')
+
+group = DefineGroup('Applications', src, depend = [''])
+
+Return('group')

bsp/ls2kdev/applications/main.c

+/*
+ * Copyright (c) 2006-2020, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2020-04-05     bigmagic    first version
+ */
+
+#include <rtthread.h>
+
+int main(int argc, char** argv)
+{   
+    rt_kprintf("ls2k1000:hello rtthread!\n");
+    return 0;
+}

bsp/ls2kdev/drivers/SConscript

+from building import *
+
+cwd = GetCurrentDir()
+src = Glob('*.c') + Glob('*.cpp') + Glob('*_gcc.S')
+
+CPPPATH = [cwd]
+
+group = DefineGroup('Drivers', src, depend = [''], CPPPATH = CPPPATH)
+
+Return('group')

bsp/ls2kdev/drivers/board.c

+/*
+ * Copyright (c) 2006-2020, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2020-04-05     bigmagic     Initial version
+ */
+
+#include <rtthread.h>
+#include <rthw.h>
+
+#include "mips_regs.h"
+#include "exception.h"
+#include "drv_uart.h"
+#include "board.h"
+/**
+ * this function will reset CPU
+ *
+ */
+void rt_hw_cpu_reset(void)
+{
+    rt_kprintf("reboot system...\n");
+    while (1);
+}
+
+/**
+ * this function will shutdown CPU
+ *
+ */
+void rt_hw_cpu_shutdown(void)
+{
+    rt_kprintf("shutdown...\n");
+
+    while (1);
+}
+
+
+/**
+ * This is the timer interrupt service routine.
+ */
+void rt_hw_timer_handler(void)
+{
+    unsigned int count;
+
+    count = read_c0_compare();
+    write_c0_compare(count);
+    write_c0_count(0);
+    /* increase a OS tick */
+    rt_tick_increase();
+}
+
+/**
+ * This function will initial OS timer
+ */
+void rt_hw_timer_init(void)
+{
+    write_c0_compare(CPU_HZ/2/RT_TICK_PER_SECOND);
+    write_c0_count(0);
+    mips_unmask_cpu_irq(7);
+}
+
+/**
+ * Board level initialization
+ */
+void rt_hw_board_init(void)
+{
+    rt_hw_exception_init();
+    /* init hardware interrupt */
+    rt_hw_interrupt_init();
+
+    #ifdef RT_USING_FPU
+    /* init hardware fpu */
+    rt_hw_fpu_init();
+    #endif
+
+#ifdef RT_USING_SERIAL
+    /* init hardware UART device */
+    rt_hw_uart_init();
+    /* set console device */
+    rt_console_set_device("uart");
+#endif
+
+#ifdef RT_USING_HEAP
+    rt_system_heap_init((void*)RT_HW_HEAP_BEGIN, (void*)RT_HW_HEAP_END);
+#endif
+
+    /* init operating system timer */
+    rt_hw_timer_init();
+
+
+#ifdef RT_USING_COMPONENTS_INIT
+    rt_components_board_init();
+#endif
+
+    rt_kprintf("Current SR: 0x%08x\n", read_c0_status());
+
+}

bsp/ls2kdev/drivers/board.h

+/*
+ * Copyright (c) 2006-2020, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2020-04-05     bigmagic     the first version
+ */
+
+#ifndef BOARD_H__
+#define BOARD_H__
+
+#include <stdint.h>
+
+extern unsigned char __bss_end;
+
+#define CPU_HZ	(100 * 1000 * 1000)
+#define RT_HW_HEAP_BEGIN    (void*)&__bss_end
+#define RT_HW_HEAP_END      (void*)(RT_HW_HEAP_BEGIN + 64 * 1024 * 1024)
+
+void rt_hw_board_init(void);
+
+#endif

bsp/ls2kdev/drivers/drv_uart.c

+/*
+ * Copyright (c) 2006-2020, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2020-04-05     bigmagic     Initial version
+ */
+
+/**
+ * @addtogroup ls2k
+ */
+
+/*@{*/
+
+#include <rtthread.h>
+#include <rtdevice.h>
+#include <rthw.h>
+#include "drv_uart.h"
+
+#define TRUE 1
+#define FALSE 0
+
+struct rt_uart_ls2k
+{
+    void *base;
+    rt_uint32_t IRQ;
+};
+
+static rt_err_t mipssim_uart_configure(struct rt_serial_device *serial, struct serial_configure *cfg)
+{
+    struct rt_uart_ls2k *uart_dev = RT_NULL;
+
+    RT_ASSERT(serial != RT_NULL);
+    RT_ASSERT(cfg != RT_NULL);
+
+    uart_dev = (struct rt_uart_ls2k *)serial->parent.user_data;
+
+    UART_IER(uart_dev->base) = 0; /* clear interrupt */
+    UART_FCR(uart_dev->base) = 0xc1; /* reset UART Rx/Tx */
+    /* set databits, stopbits and parity. (8-bit data, 1 stopbit, no parity) */
+    UART_LCR(uart_dev->base) = 0x3;
+    UART_MCR(uart_dev->base) = 0x3;
+    UART_LSR(uart_dev->base) = 0x60;
+    UART_MSR(uart_dev->base) = 0xb0;
+
+    return RT_EOK;
+}
+
+static rt_err_t mipssim_uart_control(struct rt_serial_device *serial, int cmd, void *arg)
+{
+    struct rt_uart_ls2k *uart_dev = RT_NULL;
+
+    RT_ASSERT(serial != RT_NULL);
+    uart_dev = (struct rt_uart_ls2k *)serial->parent.user_data;
+
+    switch (cmd)
+    {
+    case RT_DEVICE_CTRL_CLR_INT: /* Disable RX IRQ */
+        rt_hw_interrupt_mask(uart_dev->IRQ);
+        break;
+
+    case RT_DEVICE_CTRL_SET_INT: /* Enable RX IRQ */
+        rt_hw_interrupt_umask(uart_dev->IRQ);
+        UART_IER(uart_dev->base) |= (IER_IRxE|IER_ILE);
+        break;
+
+    default:
+        break;
+    }
+
+    return RT_EOK;
+
+}
+
+static rt_bool_t uart_is_transmit_empty(struct rt_uart_ls2k *uart_dev)
+{
+    unsigned char status = UART_LSR(uart_dev->base);
+
+    if (status & (UARTLSR_TE | UARTLSR_TFE))
+    {
+        return TRUE;
+    }
+    else
+    {
+        return FALSE;
+    }
+}
+
+static int mipssim_uart_putc(struct rt_serial_device *serial, char c)
+{
+    struct rt_uart_ls2k *uart_dev = RT_NULL;
+
+    RT_ASSERT(serial != RT_NULL);
+
+    uart_dev = (struct rt_uart_ls2k *)serial->parent.user_data;
+
+    while (FALSE == uart_is_transmit_empty(uart_dev))
+        ;
+
+    UART_DAT(uart_dev->base) = c;
+
+    return 1;
+}
+
+static int mipssim_uart_getc(struct rt_serial_device *serial)
+{
+    struct rt_uart_ls2k *uart_dev = RT_NULL;
+
+    RT_ASSERT(serial != RT_NULL);
+
+    uart_dev = (struct rt_uart_ls2k *)serial->parent.user_data;
+
+    if (LSR_RXRDY & UART_LSR(uart_dev->base))
+    {
+        return UART_DAT(uart_dev->base);
+    }
+
+    return -1;
+}
+
+/* UART interrupt handler */
+static void uart_irq_handler(int vector, void *param)
+{
+    struct rt_serial_device *serial = (struct rt_serial_device *)param;
+    struct rt_uart_ls2k *uart_dev = RT_NULL;
+
+    RT_ASSERT(serial != RT_NULL);
+
+    uart_dev = (struct rt_uart_ls2k *)serial->parent.user_data;
+    unsigned char iir = UART_IIR(uart_dev->base);
+
+    /* Find out interrupt reason */
+    if ((IIR_RXTOUT & iir) || (IIR_RXRDY & iir))
+    {
+        rt_interrupt_enter();
+        rt_hw_serial_isr(serial, RT_SERIAL_EVENT_RX_IND);
+        rt_interrupt_leave();
+    }
+
+}
+
+static const struct rt_uart_ops mipssim_uart_ops =
+{
+    mipssim_uart_configure,
+    mipssim_uart_control,
+    mipssim_uart_putc,
+    mipssim_uart_getc,
+};
+
+struct rt_uart_ls2k uart_dev0 =
+{
+    (void *)UART0_BASE,
+    4,
+};
+struct rt_serial_device serial;
+
+
+void rt_hw_uart_init(void)
+{
+    struct rt_uart_ls2k *uart;
+    struct serial_configure config = RT_SERIAL_CONFIG_DEFAULT;
+
+    uart = &uart_dev0;
+
+    serial.ops    = &mipssim_uart_ops;
+    serial.config = config;
+
+    rt_hw_interrupt_install(uart->IRQ, uart_irq_handler, &serial, "UART");
+
+    /* register UART device */
+    rt_hw_serial_register(&serial,
+                          "uart",
+                          RT_DEVICE_FLAG_RDWR | RT_DEVICE_FLAG_INT_RX,
+                          uart);
+}
+/*@}*/

bsp/ls2kdev/drivers/drv_uart.h

+/*
+ * Copyright (c) 2006-2020, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2019-04-05     bigmagic     Initial version
+ */
+
+#ifndef _DRV_UART_H__
+#define _DRV_UART_H__
+
+#include "ls2k1000.h"
+#include <rthw.h>
+
+/* UART registers */
+#define UART_DAT(base)		HWREG8(base + 0x00)
+#define UART_IER(base)		HWREG8(base + 0x01)
+#define UART_IIR(base)		HWREG8(base + 0x02)
+#define UART_FCR(base)		HWREG8(base + 0x02)
+#define UART_LCR(base)		HWREG8(base + 0x03)
+#define UART_MCR(base)		HWREG8(base + 0x04)
+#define UART_LSR(base)		HWREG8(base + 0x05)
+#define UART_MSR(base)		HWREG8(base + 0x06)
+
+#define UART_LSB(base)		HWREG8(base + 0x00)
+#define UART_MSB(base)		HWREG8(base + 0x01)
+
+/* interrupt enable register */
+#define	IER_IRxE	0x1
+#define	IER_ITxE	0x2
+#define	IER_ILE	    0x4
+#define	IER_IME	    0x8
+
+/* interrupt identification register */
+#define	IIR_IMASK	0xf	/* mask */
+#define	IIR_RXTOUT	0xc	/* receive timeout */
+#define	IIR_RLS		0x6	/* receive line status */
+#define	IIR_RXRDY	0x4	/* receive ready */
+#define	IIR_TXRDY	0x2	/* transmit ready */
+#define	IIR_NOPEND	0x1	/* nothing */
+#define	IIR_MLSC	0x0	/* modem status */
+#define	IIR_FIFO_MASK	0xc0	/* set if FIFOs are enabled */
+
+/* fifo control register */
+#define	FIFO_ENABLE	    0x01	/* enable fifo */
+#define	FIFO_RCV_RST	0x02	/* reset receive fifo */
+#define	FIFO_XMT_RST	0x04	/* reset transmit fifo */
+#define	FIFO_DMA_MODE	0x08	/* enable dma mode */
+#define	FIFO_TRIGGER_1	0x00	/* trigger at 1 char */
+#define	FIFO_TRIGGER_4	0x40	/* trigger at 4 chars */
+#define	FIFO_TRIGGER_8	0x80	/* trigger at 8 chars */
+#define	FIFO_TRIGGER_14	0xc0	/* trigger at 14 chars */
+
+// 线路控制寄存器
+/* character format control register */
+#define	CFCR_DLAB	0x80	/* divisor latch */
+#define	CFCR_SBREAK	0x40	/* send break */
+#define	CFCR_PZERO	0x30	/* zero parity */
+#define	CFCR_PONE	0x20	/* one parity */
+#define	CFCR_PEVEN	0x10	/* even parity */
+#define	CFCR_PODD	0x00	/* odd parity */
+#define	CFCR_PENAB	0x08	/* parity enable */
+#define	CFCR_STOPB	0x04	/* 2 stop bits */
+#define	CFCR_8BITS	0x03	/* 8 data bits */
+#define	CFCR_7BITS	0x02	/* 7 data bits */
+#define	CFCR_6BITS	0x01	/* 6 data bits */
+#define	CFCR_5BITS	0x00	/* 5 data bits */
+
+/* modem control register */
+#define	MCR_LOOPBACK	0x10	/* loopback */
+#define	MCR_IENABLE	0x08	/* output 2 = int enable */
+#define	MCR_DRS		0x04	/* output 1 = xxx */
+#define	MCR_RTS		0x02	/* enable RTS */
+#define	MCR_DTR		0x01	/* enable DTR */
+
+/* line status register */
+#define	LSR_RCV_FIFO	0x80	/* error in receive fifo */
+#define	LSR_TSRE	0x40	/* transmitter empty */
+#define	LSR_TXRDY	0x20	/* transmitter ready */
+#define	LSR_BI		0x10	/* break detected */
+#define	LSR_FE		0x08	/* framing error */
+#define	LSR_PE		0x04	/* parity error */
+#define	LSR_OE		0x02	/* overrun error */
+#define	LSR_RXRDY	0x01	/* receiver ready */
+#define	LSR_RCV_MASK	0x1f
+
+
+/* UART interrupt enable register value */
+#define UARTIER_IME		(1 << 3)
+#define UARTIER_ILE		(1 << 2)
+#define UARTIER_ITXE	(1 << 1)
+#define UARTIER_IRXE	(1 << 0)
+
+/* UART line control register value */
+#define UARTLCR_DLAB	(1 << 7)
+#define UARTLCR_BCB		(1 << 6)
+#define UARTLCR_SPB		(1 << 5)
+#define UARTLCR_EPS		(1 << 4)
+#define UARTLCR_PE		(1 << 3)
+#define UARTLCR_SB		(1 << 2)
+
+/* UART line status register value */
+#define UARTLSR_ERROR	(1 << 7)
+#define UARTLSR_TE		(1 << 6)
+#define UARTLSR_TFE		(1 << 5)
+#define UARTLSR_BI		(1 << 4)
+#define UARTLSR_FE		(1 << 3)
+#define UARTLSR_PE		(1 << 2)
+#define UARTLSR_OE		(1 << 1)
+#define UARTLSR_DR		(1 << 0)
+
+#endif

bsp/ls2kdev/drivers/interrupt.c

+/*
+ * Copyright (c) 2006-2019, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2020-04-05     bigmagic     Initial version
+ */
+
+/**
+ * @addtogroup ls2k
+ */
+
+/*@{*/
+
+#include <rtthread.h>
+#include <rthw.h>
+#include <exception.h>
+
+#define MAX_INTR 32
+
+static struct rt_irq_desc irq_handle_table[MAX_INTR];
+
+static void rt_hw_interrupt_handler(int vector, void *param)
+{
+    rt_kprintf("Unhandled interrupt %d occured!!!\n", vector);
+}
+
+/**
+ * This function will initialize hardware interrupt
+ */
+void rt_hw_interrupt_init(void)
+{
+    rt_uint32_t idx;
+    rt_memset(irq_handle_table, 0x00, sizeof(irq_handle_table));
+    for (idx = 0; idx < MAX_INTR; idx ++)
+    {
+        irq_handle_table[idx].handler = rt_hw_interrupt_handler;
+    }
+}
+
+rt_isr_handler_t rt_hw_interrupt_install(int vector, rt_isr_handler_t handler,
+                                         void *param, const char *name)
+{
+    rt_isr_handler_t old_handler = RT_NULL;
+
+    if (vector >= 0 && vector < MAX_INTR)
+    {
+        old_handler = irq_handle_table[vector].handler;
+
+#ifdef RT_USING_INTERRUPT_INFO
+        rt_strncpy(irq_handle_table[vector].name, name, RT_NAME_MAX);
+#endif /* RT_USING_INTERRUPT_INFO */
+        irq_handle_table[vector].handler = handler;
+        irq_handle_table[vector].param = param;
+    }
+
+    return old_handler;
+}
+
+void rt_hw_timer_handler(void);
+
+void rt_do_mips_cpu_irq(rt_uint32_t ip)
+{
+    void *param;
+    rt_isr_handler_t irq_func;
+
+    if (ip == 7) {
+        rt_hw_timer_handler();
+    } else {
+        irq_func = irq_handle_table[ip].handler;
+                param = irq_handle_table[ip].param;
+
+                /* do interrupt */
+                irq_func(ip, param);
+    }
+}
+
+void rt_hw_interrupt_umask(int irq)
+{
+    mips_unmask_cpu_irq(irq);
+}
+
+void rt_hw_interrupt_mask(int irq)
+{
+    mips_mask_cpu_irq(irq);
+}
+/*@}*/

bsp/ls2kdev/drivers/ls2k1000.h

+#ifndef _LS2K1000_H__
+#define _LS2K1000_H__
+
+#include <mips.h>
+
+#define UART0_BASE_ADDR 0xbfe00000
+#define UART0_OFF   0x0
+#define UART0_BASE CKSEG1ADDR(UART0_BASE_ADDR + UART0_OFF)
+
+void rt_hw_timer_handler(void);
+void rt_hw_uart_init(void);
+
+#endif
\ No newline at end of file

bsp/ls2kdev/mipssim_ram.lds

+/*
+ * Copyright (c) 2006-2020, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2020-04-05     bigmagic  Initial version
+ */
+
+OUTPUT_ARCH(mips)
+GROUP(-lgcc -lc)
+
+ENTRY(_start)
+SECTIONS
+{
+    . = 0x80200000 ;
+    .text :
+    {
+        __ebase_entry = .;
+        KEEP(*(.exc_vectors))
+        __ebase_end = .;
+        start = .;
+        *(.start);
+            . = ALIGN(4);	 
+            *(.text)
+            *(.text.*)
+            *(.rodata)
+            *(.rodata.*)
+            *(.rodata1)
+            *(.rodata1.*)
+
+
+            /* section information for finsh shell */
+            . = ALIGN(4);
+            __fsymtab_start = .;
+            KEEP(*(FSymTab))
+            __fsymtab_end = .;
+            . = ALIGN(4);
+            __vsymtab_start = .;
+            KEEP(*(VSymTab))
+            __vsymtab_end = .;
+            . = ALIGN(4);
+
+            . = ALIGN(4);
+            __rt_init_start = .;
+            KEEP(*(SORT(.rti_fn*)))
+            __rt_init_end = .;
+            . = ALIGN(4);
+
+            . = ALIGN(4);
+        __rt_utest_tc_tab_start = .;
+        KEEP(*(UtestTcTab))
+        __rt_utest_tc_tab_end = .;
+        . = ALIGN(4);
+    }
+    
+    .eh_frame_hdr : 
+    { 
+         *(.eh_frame_hdr) 
+         *(.eh_frame_entry)
+    }
+    .eh_frame : ONLY_IF_RO { KEEP (*(.eh_frame)) }
+
+    . = ALIGN(4);
+    .data : 
+    {
+         *(.data)
+         *(.data.*)
+        
+         *(.data1)
+         *(.data1.*)
+
+         . = ALIGN(8);
+         _gp = ABSOLUTE(.);     /* Base of small data */
+         
+         *(.sdata)
+         *(.sdata.*)
+    }
+
+    .stack :
+    {
+        . = ALIGN(8);
+        _system_stack_start = .;
+        . = . + 0x1000;
+        _system_stack = .;
+    }
+
+    .sbss : 
+    {
+        __bss_start = .;
+        *(.sbss)
+        *(.sbss.*)
+        *(.dynsbss)
+        *(.scommon)
+    }
+
+    .bss :
+    {
+        *(.bss)
+        *(.bss.*)
+        *(.dynbss)
+        *(COMMON)
+        __bss_end = .;
+    }
+    _end = .;
+
+    /* Stabs debugging sections.  */
+    .stab          0 : { *(.stab) }
+    .stabstr       0 : { *(.stabstr) }
+    .stab.excl     0 : { *(.stab.excl) }
+    .stab.exclstr  0 : { *(.stab.exclstr) }
+    .stab.index    0 : { *(.stab.index) }
+    .stab.indexstr 0 : { *(.stab.indexstr) }
+    .comment       0 : { *(.comment) }
+    /* DWARF debug sections.
+     * Symbols in the DWARF debugging sections are relative to the beginning
+     * of the section so we begin them at 0.  */
+    /* DWARF 1 */
+    .debug          0 : { *(.debug) }
+    .line           0 : { *(.line) }
+    /* GNU DWARF 1 extensions */
+    .debug_srcinfo  0 : { *(.debug_srcinfo) }
+    .debug_sfnames  0 : { *(.debug_sfnames) }
+    /* DWARF 1.1 and DWARF 2 */
+    .debug_aranges  0 : { *(.debug_aranges) }
+    .debug_pubnames 0 : { *(.debug_pubnames) }
+    /* DWARF 2 */
+    .debug_info     0 : { *(.debug_info .gnu.linkonce.wi.*) }
+    .debug_abbrev   0 : { *(.debug_abbrev) }
+    .debug_line     0 : { *(.debug_line) }
+    .debug_frame    0 : { *(.debug_frame) }
+    .debug_str      0 : { *(.debug_str) }
+    .debug_loc      0 : { *(.debug_loc) }
+    .debug_macinfo  0 : { *(.debug_macinfo) }
+    /* SGI/MIPS DWARF 2 extensions */
+    .debug_weaknames 0 : { *(.debug_weaknames) }
+    .debug_funcnames 0 : { *(.debug_funcnames) }
+    .debug_typenames 0 : { *(.debug_typenames) }
+    .debug_varnames  0 : { *(.debug_varnames) }
+}

bsp/ls2kdev/rtconfig.h

+#ifndef RT_CONFIG_H__
+#define RT_CONFIG_H__
+
+/* Automatically generated file; DO NOT EDIT. */
+/* RT-Thread Configuration */
+
+/* RT-Thread Kernel */
+
+#define RT_NAME_MAX 8
+#define RT_ALIGN_SIZE 4
+#define RT_THREAD_PRIORITY_32
+#define RT_THREAD_PRIORITY_MAX 32
+#define RT_TICK_PER_SECOND 100
+#define RT_USING_OVERFLOW_CHECK
+#define RT_USING_HOOK
+#define RT_USING_IDLE_HOOK
+#define RT_IDLE_HOOK_LIST_SIZE 4
+#define IDLE_THREAD_STACK_SIZE 2048
+#define RT_USING_TIMER_SOFT
+#define RT_TIMER_THREAD_PRIO 4
+#define RT_TIMER_THREAD_STACK_SIZE 2048
+#define RT_DEBUG
+
+/* Inter-Thread communication */
+
+#define RT_USING_SEMAPHORE
+#define RT_USING_MUTEX
+#define RT_USING_EVENT
+#define RT_USING_MAILBOX
+#define RT_USING_MESSAGEQUEUE
+
+/* Memory Management */
+
+#define RT_USING_MEMPOOL
+#define RT_USING_SMALL_MEM
+#define RT_USING_HEAP
+
+/* Kernel Device Object */
+
+#define RT_USING_DEVICE
+#define RT_USING_CONSOLE
+#define RT_CONSOLEBUF_SIZE 128
+#define RT_CONSOLE_DEVICE_NAME "uart"
+#define RT_VER_NUM 0x40003
+#define ARCH_MIPS64
+
+/* RT-Thread Components */
+
+#define RT_USING_COMPONENTS_INIT
+#define RT_USING_USER_MAIN
+#define RT_MAIN_THREAD_STACK_SIZE 2048
+#define RT_MAIN_THREAD_PRIORITY 10
+
+/* C++ features */
+
+
+/* Command shell */
+
+#define RT_USING_FINSH
+#define FINSH_THREAD_NAME "tshell"
+#define FINSH_USING_HISTORY
+#define FINSH_HISTORY_LINES 5
+#define FINSH_USING_SYMTAB
+#define FINSH_USING_DESCRIPTION
+#define FINSH_THREAD_PRIORITY 20
+#define FINSH_THREAD_STACK_SIZE 4096
+#define FINSH_CMD_SIZE 80
+#define FINSH_USING_MSH
+#define FINSH_USING_MSH_DEFAULT
+#define FINSH_ARG_MAX 10
+
+/* Device virtual file system */
+
+#define RT_USING_DFS
+#define DFS_USING_WORKDIR
+#define DFS_FILESYSTEMS_MAX 2
+#define DFS_FILESYSTEM_TYPES_MAX 2
+#define DFS_FD_MAX 16
+#define RT_USING_DFS_DEVFS
+
+/* Device Drivers */
+
+#define RT_USING_DEVICE_IPC
+#define RT_PIPE_BUFSZ 512
+#define RT_USING_SERIAL
+#define RT_SERIAL_USING_DMA
+#define RT_SERIAL_RB_BUFSZ 64
+#define RT_USING_PIN
+
+/* Using USB */
+
+
+/* POSIX layer and C standard library */
+
+#define RT_USING_LIBC
+#define RT_USING_POSIX
+
+/* Network */
+
+/* Socket abstraction layer */
+
+
+/* Network interface device */
+
+
+/* light weight TCP/IP stack */
+
+
+/* AT commands */
+
+
+/* VBUS(Virtual Software BUS) */
+
+
+/* Utilities */
+
+
+/* RT-Thread MIPS CPU */
+
+
+/* RT-Thread online packages */
+
+/* IoT - internet of things */
+
+
+/* Wi-Fi */
+
+/* Marvell WiFi */
+
+
+/* Wiced WiFi */
+
+
+/* IoT Cloud */
+
+
+/* security packages */
+
+
+/* language packages */
+
+
+/* multimedia packages */
+
+
+/* tools packages */
+
+
+/* system packages */
+
+
+/* peripheral libraries and drivers */
+
+
+/* miscellaneous packages */
+
+
+/* samples: kernel and components samples */
+
+
+/* Privated Packages of RealThread */
+
+
+/* Network Utilities */
+
+#define SOC_LS2K1000
+
+#endif

bsp/ls2kdev/rtconfig.py

+import os
+# CPU options
+ARCH='mips'
+CPU ='gs264'
+
+if os.getenv('RTT_ROOT'):
+    RTT_ROOT = os.getenv('RTT_ROOT')
+else:
+    RTT_ROOT = '../..'
+
+# toolchains options
+CROSS_TOOL  = 'gcc'
+
+if os.getenv('RTT_CC'):
+	CROSS_TOOL = os.getenv('RTT_CC')
+
+if  CROSS_TOOL == 'gcc':
+	PLATFORM    = 'gcc'
+	EXEC_PATH   = "/opt/mips-2015.05-19-mips-sde-elf-i686-pc-linux-gnu/mips-2015.05/bin/"
+#	EXEC_PATH   = r'D:\mgc\embedded\codebench\bin'
+else:
+    print('================ERROR===========================')
+    print('Not support %s yet!' % CROSS_TOOL)
+    print('=================================================')
+    exit(0)
+
+if os.getenv('RTT_EXEC_PATH'):
+	EXEC_PATH = os.getenv('RTT_EXEC_PATH')
+
+BUILD       = 'debug'
+
+PREFIX = 'mips-sde-elf-'
+CC = PREFIX + 'gcc'
+AS = PREFIX + 'gcc'
+AR = PREFIX + 'ar'
+LINK = PREFIX + 'gcc'
+TARGET_EXT = 'elf'
+SIZE = PREFIX + 'size'
+OBJDUMP = PREFIX + 'objdump'
+OBJCPY = PREFIX + 'objcopy'
+READELF = PREFIX + 'readelf'
+
+DEVICE = ' -march=mips64r2 -mabi=64 -msoft-float'
+CFLAGS = DEVICE + ' -EL -G0 -mno-abicalls -fno-pic -fno-builtin -fno-exceptions -ffunction-sections -fomit-frame-pointer'
+AFLAGS = ' -c' + DEVICE + ' -EL -fno-pic -fno-builtin -mno-abicalls -x assembler-with-cpp'
+LFLAGS = DEVICE + ' -nostartfiles -EL -Wl,--gc-sections,-Map=rtthread.map,-cref,-u,Reset_Handler -T mipssim_ram.lds'
+CXXFLAGS = CFLAGS
+
+CPATH = ''
+LPATH = ''
+
+if BUILD == 'debug':
+    CFLAGS += ' -O0 -gdwarf-2'
+    AFLAGS += ' -gdwarf-2'
+else:
+    CFLAGS += ' -O2'
+
+DUMP_ACTION = OBJDUMP + ' -D -S $TARGET > rtt.asm\n'
+READELF_ACTION = READELF + ' -a $TARGET > rtt.map\n'
+POST_ACTION = OBJCPY + ' -O binary $TARGET rtthread.bin\n' + SIZE + ' $TARGET \n'

libcpu/Kconfig

@@ -77,6 +77,9 @@ config ARCH_ARM_CORTEX_A9
 config ARCH_MIPS
     bool
 
+config ARCH_MIPS64
+    bool
+
 config ARCH_MIPS_XBURST
     bool
     select ARCH_MIPS

libcpu/mips/common/asm.h

@@ -14,6 +14,7 @@
 #ifndef __ASM_H__
 #define __ASM_H__
 
+#include <rtconfig.h>
 /*
  * LEAF - declare leaf routine
  */
@@ -117,7 +118,94 @@ symbol		=	value
 /*
  * Macros to handle different pointer/register sizes for 32/64-bit code
  */
+#if defined SOC_LS2K1000
+/*
+ * Size of a register
+ */
+#define SZREG	8
+
+/*
+ * Use the following macros in assemblercode to load/store registers,
+ * pointers etc.
+ */
+#define REG_S		sd
+#define REG_L		ld
+#define REG_SUBU	dsubu
+#define REG_ADDU	daddu
+
+/*
+ * How to add/sub/load/store/shift C int variables.
+ */
+#define INT_ADD		dadd
+#define INT_ADDU	daddu
+#define INT_ADDI	daddi
+#define INT_ADDIU	daddiu
+#define INT_SUB		dsub
+#define INT_SUBU	dsubu
+#define INT_L		ld
+#define INT_S		sd
+#define INT_SLL		dsll
+#define INT_SLLV	dsllv
+#define INT_SRL		dsrl
+#define INT_SRLV	dsrlv
+#define INT_SRA		dsra
+#define INT_SRAV	dsrav
+
+/*
+ * Use the following macros in assemblercode to load/store registers,
+ * pointers etc.
+ */
+#define LONG_ADD	dadd
+#define LONG_ADDU	daddu
+#define LONG_ADDI	daddi
+#define LONG_ADDIU	daddiu
+#define LONG_SUB	dsub
+#define LONG_SUBU	dsubu
+#define LONG_L		ld
+#define LONG_S		sd
+#define LONG_SP		sdp
+#define LONG_SLL	dsll
+#define LONG_SLLV	dsllv
+#define LONG_SRL	dsrl
+#define LONG_SRLV	dsrlv
+#define LONG_SRA	dsra
+#define LONG_SRAV	dsrav
+
+#define LONG		.dword
+#define LONGSIZE	8
+#define LONGMASK	7
+#define LONGLOG		3
 
+/*
+ * How to add/sub/load/store/shift pointers.
+ */
+#define PTR_ADD		dadd
+#define PTR_ADDU	daddu
+#define PTR_ADDI	daddi
+#define PTR_ADDIU	daddiu
+#define PTR_SUB		dsub
+#define PTR_SUBU	dsubu
+#define PTR_L		ld
+#define PTR_S		sd
+#define PTR_LA		dla
+#define PTR_LI		dli
+#define PTR_SLL		dsll
+#define PTR_SLLV	dsllv
+#define PTR_SRL		dsrl
+#define PTR_SRLV	dsrlv
+#define PTR_SRA		dsra
+#define PTR_SRAV	dsrav
+
+#define PTR_SCALESHIFT	3
+
+#define PTR		.dword
+#define PTRSIZE		8
+#define PTRLOG		3
+
+#define MFC0		dmfc0
+#define MTC0		dmtc0
+
+#else
 /*
  * Size of a register
  */
@@ -211,6 +299,7 @@ symbol		=	value
 #define MFC0		mfc0
 #define MTC0		mtc0
 
+#endif
 
 #define SSNOP		sll zero, zero, 1
 

libcpu/mips/common/entry_gcc.S

@@ -13,6 +13,9 @@
 #endif
 
 #include <mips.h>
+#include <rtconfig.h>
+
+#include "asm.h"
 #include <rtconfig.h>
 
     .section ".start", "ax"
@@ -25,27 +28,33 @@ _rtthread_entry:
     .globl  _start
 _start:
 #endif
-    la	ra, _rtthread_entry
+    PTR_LA	ra, _rtthread_entry
 
     /* disable interrupt */
     mtc0	zero, CP0_CAUSE
     mtc0	zero, CP0_STATUS	# Set CPU to disable interrupt.
     ehb
+
+#ifdef ARCH_MIPS64
+    dli		t0, ST0_KX
+    MTC0	t0, CP0_STATUS
+#endif
+
     /* setup stack pointer */
-    la	sp, _system_stack
-    la	gp, _gp
+    PTR_LA	sp, _system_stack
+    PTR_LA	gp, _gp
 
     bal	rt_cpu_early_init
     nop
 
     /* clear bss */
-    la	t0, __bss_start
-    la	t1, __bss_end
+    PTR_LA	t0, __bss_start
+    PTR_LA	t1, __bss_end
+
 _clr_bss_loop:
     sw	zero, 0(t0)
-    bne	t0, t1, _clr_bss_loop
-    addiu	t0, t0, 4
-
+    bne	t1, t0, _clr_bss_loop
+    addu	t0, 4
     /* jump to RT-Thread RTOS */
     jal	rtthread_startup
     nop

libcpu/mips/common/mips_addrspace.h

@@ -24,7 +24,7 @@
 #define _ATYPE_		__PTRDIFF_TYPE__
 #define _ATYPE32_	int
 #define _ATYPE64_	__s64
-#ifdef CONFIG_64BIT
+#ifdef ARCH_MIPS64
 #define _CONST64_(x)	x ## L
 #else
 #define _CONST64_(x)	x ## LL
@@ -54,7 +54,7 @@
 #define XPHYSADDR(a)		((_ACAST64_(a)) &			\
 				 _CONST64_(0x000000ffffffffff))
 
-#ifdef CONFIG_64BIT
+#ifdef ARCH_MIPS64
 
 /*
  * Memory segments (64bit kernel mode addresses)
@@ -90,6 +90,14 @@
 #define KSEG2ADDR(a)		(CPHYSADDR(a) | KSEG2BASE)
 #define KSEG3ADDR(a)		(CPHYSADDR(a) | KSEG3BASE)
 
+#define CKUSEG			0x00000000
+#define CKSEG0			0x80000000
+#define CKSEG1			0xa0000000
+#define CKSEG2			0xc0000000
+#define CKSEG3			0xe0000000
+
+#endif
+
 /*
  * Memory segments (32bit kernel mode addresses)
  * These are the traditional names used in the 32-bit universe.
@@ -100,13 +108,7 @@
 #define KSEG2BASE			0xc0000000
 #define KSEG3BASE			0xe0000000
 
-#define CKUSEG			0x00000000
-#define CKSEG0			0x80000000
-#define CKSEG1			0xa0000000
-#define CKSEG2			0xc0000000
-#define CKSEG3			0xe0000000
 
-#endif
 
 /*
  * Cache modes for XKPHYS address conversion macros

libcpu/mips/gs264/SConscript

+# RT-Thread building script for component
+
+from building import *
+
+Import('rtconfig')
+
+cwd     = GetCurrentDir()
+src     = Glob('*.c') + Glob('*.cpp') + Glob('*_gcc.S')
+CPPPATH = [cwd]
+ASFLAGS = ''
+
+group = DefineGroup('cpu', src, depend = [''], CPPPATH = CPPPATH, ASFLAGS = ASFLAGS)
+
+Return('group')

libcpu/mips/gs264/cpuinit_gcc.S

+/*
+ * Copyright (c) 2006-2020, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2020-04-05     bigmagic     Initial version
+ */
+
+#ifndef __ASSEMBLY__
+#define __ASSEMBLY__
+#endif
+
+#include <mips.h>
+
+    .section ".text", "ax"
+    .set noreorder
+
+    .globl  rt_cpu_early_init
+rt_cpu_early_init:
+     mfc0	t0, CP0_CONFIG
+     ori	t0, 3
+     mtc0	t0, CP0_CONFIG
+     ehb
+     jr	ra
\ No newline at end of file