Merge pull request #5192 from nuclei-community/nuclei/upstream

bsp/nuclei: update nuclei target support code

bsp/nuclei/README.md

@@ -6,7 +6,7 @@ currently we mainly provided the following board support packages.
 | **BSP**                              | **Development Board Name**                                                                                 |
 | :----------------------------------- | :--------------------------------------------------------------------------------------------------------- |
 | [gd32vf103_rvstar](gd32vf103_rvstar) | [Nuclei RV-STAR Arduino Compatible Development Board](https://www.rvmcu.com/quickstart-doc-u-rvstar.html)  |
-| [hbird_eval](hbird_eval)             | [Nuclei HummingBird FPGA Evaluation Development Board](https://nucleisys.com/developboard.php#ddr200t)     |
+| [nuclei_fpga_eval](nuclei_fpga_eval) | [Nuclei FPGA Evaluation Development Board](https://nucleisys.com/developboard.php#ddr200t)     |
 
 **If you want to learn more about Nuclei Processors, please click the following links:**
 

bsp/nuclei/libraries/demosoc/HAL_Drivers/drv_uart.c

@@ -187,9 +187,10 @@ void eclic_irq20_handler(void)
 
 #endif
 
-/* For HBird Uart, when CPU freq is lower than 8M
-   The uart read will only work on baudrate <= 57600 */
-#define DRV_UART_BAUDRATE       BAUD_RATE_57600
+/* For Nuclei demosoc Uart, when CPU freq is lower than 8M
+   The uart read will only work on baudrate <= 57600.
+   Nowadays, we usually distribute FPGA bitsteam with CPU Freq 16MHz */
+#define DRV_UART_BAUDRATE       BAUD_RATE_115200
 
 int rt_hw_uart_init(void)
 {

bsp/nuclei/nuclei_fpga_eval/.config

@@ -660,7 +660,7 @@ CONFIG_PKG_NUCLEI_SDK_VER="latest"
 #
 # Hardware Drivers Config
 #
-CONFIG_SOC_HUMMINGBIRD=y
+CONFIG_SOC_DEMOSOC=y
 
 #
 # Onboard Peripheral Drivers

bsp/nuclei/nuclei_fpga_eval/Kconfig

@@ -19,7 +19,7 @@ source "$RTT_DIR/Kconfig"
 source "$PKGS_DIR/Kconfig"
 source "board/Kconfig"
 
-config SOC_HUMMINGBIRD
+config SOC_DEMOSOC
     bool
     select ARCH_RISCV
     select PKG_USING_NUCLEI_SDK

bsp/nuclei/nuclei_fpga_eval/README.md

@@ -1,14 +1,14 @@
-# 芯来科技蜂鸟FPGA评估板
+# 芯来科技FPGA评估板
 
 ## 简介
 
-**蜂鸟FPGA系列评估板** 是由芯来科技公司推出的用于一系列测试评估芯来RISC-V内核处理器的FPGA评估板。
+**芯来科技FPGA系列板** 是由芯来科技公司推出的用于一系列测试评估芯来RISC-V内核处理器的FPGA评估板。
 
-更多关于 **蜂鸟FPGA评估板** 开发板的详细资料请参见:
+更多关于 **芯来科技FPGA评估板** 开发板的详细资料请参见:
 
 * [Nuclei DDR200T开发板](https://nucleisys.com/developboard.php#ddr200t)
 * [Nuclei MCU200T开发板](https://nucleisys.com/developboard.php#mcu200t)
-* [蜂鸟开发板](https://nucleisys.com/developboard.php#hbird100t)
+* [蜂鸟开发板](https://nucleisys.com/developboard.php#demosoc100t)
 
 ### 板载资源
 
@@ -16,7 +16,7 @@
 | ---  | --- |
 | 内核 | Nuclei RISC-V N/NX/UX 内核 |
 | 架构 | RV32 or RV64 |
-| 主频 | 8MHz or uncertain freq |
+| 主频 | 16MHz or uncertain freq |
 
 **注意**: 这个上面烧写的是FPGA bitstream文件，所以处理器内核版本根据型号来定，通过修改**rtconfig.py**中的**NUCLEI_SDK_CORE**.
 
@@ -33,28 +33,28 @@
 
 #### Windows
 
-假设工具安装在 **D:\Software\Nuclei**目录下, 则可以修改系统环境变量**PATH**,
-将**D:\Software\Nuclei\gcc\bin;D:\Software\Nuclei\openocd\bin;**增加到**PATH**中。
+假设工具安装在 **D:\NucleiStudio\toolchain**目录下, 则可以修改系统环境变量**PATH**,
+将**D:\NucleiStudio\toolchain\gcc\bin;D:\NucleiStudio\toolchain\openocd\bin;**增加到**PATH**中。
 
 或者在ENV工具命令行中运行
 
 ~~~cmd
-set PATH=D:\Software\Nuclei\gcc\bin;D:\Software\Nuclei\openocd\bin;%PATH%
+set PATH=D:\NucleiStudio\toolchain\gcc\bin;D:\NucleiStudio\toolchain\openocd\bin;%PATH%
 ~~~
 
 #### Linux
 
-假设工具安装在 **~/Software/Nuclei**目录下, 通过在Linux的``.bashrc``增加如下一行代码
+假设工具安装在 **~/NucleiStudio/toolchain**目录下, 通过在Linux的``.bashrc``增加如下一行代码
 来添加环境变量。
 
 ~~~bash
-export PATH=~/Software/Nuclei/gcc/bin:~/Software/Nuclei/openocd/bin:$PATH
+export PATH=~/NucleiStudio/toolchain/gcc/bin:~/NucleiStudio/toolchain/openocd/bin:$PATH
 ~~~
 
 或者在ENV工具命令行中运行
 
 ~~~bash
-export PATH=~/Software/Nuclei/gcc/bin:~/Software/Nuclei/openocd/bin:$PATH
+export PATH=~/NucleiStudio/toolchain/gcc/bin:~/NucleiStudio/toolchain/openocd/bin:$PATH
 ~~~
 
 **注意**: 对应的RISC-V GCC和OPENOCD的路径请替换成自己安装的路径。
@@ -69,7 +69,7 @@ export PATH=~/Software/Nuclei/gcc/bin:~/Software/Nuclei/openocd/bin:$PATH
 
 下载好[RT-Thread](https://github.com/RT-Thread/rt-thread)的代码和[ENV工具](https://www.rt-thread.org/document/site/tutorial/env-video/)以后。
 
-按照ENV工具的教程, 在**rt-thread\bsp\nuclei\hbird_eval**目录打开ENV工具命令行。
+按照ENV工具的教程, 在**rt-thread\bsp\nuclei\nuclei_fpga_eval**目录打开ENV工具命令行。
 
 **注意**: 请确保Nuclei GCC和Nuclei OpenOCD的路径设置正确无误。
 
@@ -91,9 +91,9 @@ export PATH=~/Software/Nuclei/gcc/bin:~/Software/Nuclei/openocd/bin:$PATH
 
 ~~~
 scons: Reading SConscript files ...
-Supported downloaded modes for board hbird_eval are ('ilm', 'flash', 'flashxip'), chosen downloaded mode is ilm
+Supported downloaded modes for board nuclei_fpga_eval are ('ilm', 'flash', 'flashxip'), chosen downloaded mode is ilm
 Upload application rtthread.elf using openocd and gdb
-riscv-nuclei-elf-gdb rtthread.elf -ex "set remotetimeout 240"                     -ex "target remote | openocd --pipe -f D:/workspace/Sourcecode/rt-thread/bsp/nuclei/hbird_eval/packages/nuclei_sdk-latest/SoC/hbird/Board/hbird_eval/openocd_hbird.cfg"
+riscv-nuclei-elf-gdb rtthread.elf -ex "set remotetimeout 240"                     -ex "target remote | openocd --pipe -f D:/workspace/Sourcecode/rt-thread/bsp/nuclei/nuclei_fpga_eval/packages/nuclei_sdk-latest/SoC/demosoc/Board/nuclei_fpga_eval/openocd_demosoc.cfg"
               --batch -ex "monitor halt" -ex "monitor flash protect 0 0 last off" -ex "load"                     -ex "monitor resume" -ex "monitor shutdown" -ex "quit"
 D:\Software\Nuclei\gcc\bin\riscv-nuclei-elf-gdb.exe: warning: Couldn't determine a path for the index cache directory.
 Nuclei OpenOCD, i386 Open On-Chip Debugger 0.10.0+dev-g11f0cf429 (2020-07-15-04:09)
@@ -119,11 +119,9 @@ Quit anyway? (y or n) [answered Y; input not from terminal]
 [Inferior 1 (Remote target) detached]
 ~~~
 
-下载程序之后, 连接**串口(57600-N-8-1)**, 可以看到 RT-Thread 的输出信息:
+下载程序之后, 连接**串口(115200-N-8-1)**, 可以看到 RT-Thread 的输出信息:
 
-> 由于FPGA评估的Nuclei RISC-V内核主频一般在8MHz左右, 而评估SoC串口
-> 在8MHz主频下，工作大于在115200 bps时，串口读取工作不正常，因此这里设置
-> 波特率为57600bps，特此说明.
+> 最新发布出去的评估Bit一般都是16MHz, 串口工作在115200bps下串口读取可以正常工作.
 
 ```
 initialize rti_board_start:0 done
@@ -161,9 +159,9 @@ msh />
 
 ~~~
 scons: Reading SConscript files ...
-Supported downloaded modes for board hbird_eval are ('ilm', 'flash', 'flashxip'), chosen downloaded mode is ilm
+Supported downloaded modes for board nuclei_fpga_eval are ('ilm', 'flash', 'flashxip'), chosen downloaded mode is ilm
 Debug application rtthread.elf using openocd and gdb
-riscv-nuclei-elf-gdb rtthread.elf -ex "set remotetimeout 240"                     -ex "target remote | openocd --pipe -f D:/workspace/Sourcecode/rt-thread/bsp/nuclei/hbird_eval/packages/nuclei_sdk-latest/SoC/hbird/Board/hbird_eval/openocd_hbird.cfg"
+riscv-nuclei-elf-gdb rtthread.elf -ex "set remotetimeout 240"                     -ex "target remote | openocd --pipe -f D:/workspace/Sourcecode/rt-thread/bsp/nuclei/nuclei_fpga_eval/packages/nuclei_sdk-latest/SoC/demosoc/Board/nuclei_fpga_eval/openocd_demosoc.cfg"
 D:\Software\Nuclei\gcc\bin\riscv-nuclei-elf-gdb.exe: warning: Couldn't determine a path for the index cache directory.
 GNU gdb (GDB) 8.3.0.20190516-git
 Copyright (C) 2019 Free Software Foundation, Inc.
@@ -181,7 +179,7 @@ Find the GDB manual and other documentation resources online at:
 For help, type "help".
 Type "apropos word" to search for commands related to "word"...
 Reading symbols from rtthread.elf...
-Remote debugging using | openocd --pipe -f D:/workspace/Sourcecode/rt-thread/bsp/nuclei/hbird_eval/packages/nuclei_sdk-latest/SoC/hbird/Board/hbird_eval/openocd_hbird.cfg
+Remote debugging using | openocd --pipe -f D:/workspace/Sourcecode/rt-thread/bsp/nuclei/nuclei_fpga_eval/packages/nuclei_sdk-latest/SoC/demosoc/Board/nuclei_fpga_eval/openocd_demosoc.cfg
 Nuclei OpenOCD, i386 Open On-Chip Debugger 0.10.0+dev-g11f0cf429 (2020-07-15-04:09)
 Licensed under GNU GPL v2
 For bug reports, read
@@ -215,7 +213,7 @@ Continuing.
 * https://doc.nucleisys.com/nuclei_sdk/quickstart.html#debug-application
 
 为了更方便的进行调试, 也可以下载**Nuclei Studio**集成开发环境, 创建一个Debug Configuration, 选择编译好的
-ELF文件, 然后配置OPENOCD和GDB即可, OPENOCD配置文件路径为**bsp\nuclei\hbird_eval\packages\nuclei_sdk-latest\SoC\hbird\Board\hbird_eval\openocd_hbird.cfg**
+ELF文件, 然后配置OPENOCD和GDB即可, OPENOCD配置文件路径为**bsp\nuclei\nuclei_fpga_eval\packages\nuclei_sdk-latest\SoC\demosoc\Board\nuclei_fpga_eval\openocd_demosoc.cfg**
 
 
 ## 驱动支持情况
@@ -226,9 +224,9 @@ ELF文件, 然后配置OPENOCD和GDB即可, OPENOCD配置文件路径为**bsp\nu
 
 **注:**
 
-- 适配RT-Thread的驱动框架的代码在 [../libraries/hbird/HAL_Drivers](../libraries/hbird/HAL_Drivers)目录下。
+- 适配RT-Thread的驱动框架的代码在 [../libraries/demosoc/HAL_Drivers](../libraries/demosoc/HAL_Drivers)目录下。
 - 如果有开发者想适配更多的驱动, 请在对应目录下增加驱动适配支持。
-- 目前串口读取功能在主频为8MHz情况下需要工作在57600bps
+- 目前串口读取功能在主频为8MHz情况下需要工作在57600bps, 目前发布的Bit一般都是16Mhz
 - 目前串口读取没有采用中断的方式进行，而是采用单独的任务来读取，等中断信号接入后可以直接中断方式读取
 
 ## 联系人信息

bsp/nuclei/nuclei_fpga_eval/rtconfig.h

@@ -227,7 +227,7 @@
 
 /* Hardware Drivers Config */
 
-#define SOC_HUMMINGBIRD
+#define SOC_DEMOSOC
 
 /* Onboard Peripheral Drivers */
 

bsp/nuclei/nuclei_fpga_eval/rtconfig.py

@@ -1,4 +1,5 @@
 import os
+import platform
 
 # toolchains options
 ARCH='risc-v'
@@ -10,17 +11,23 @@ if os.getenv('RTT_CC'):
 
 if CROSS_TOOL == 'gcc':
     PLATFORM 	= 'gcc'
-    EXEC_PATH 	= 'D:/Software/Nuclei/gcc/bin'
+    if platform.system().lower() == "windows":
+        EXEC_PATH 	= 'D:/NucleiStudio/toolchain/gcc/bin'
+    else:
+        EXEC_PATH 	= '~/NucleiStudio/toolchain/gcc/bin'
+    if os.path.exists(EXEC_PATH) == False:
+        print("Warning: Toolchain path %s doesn't exist, assume it is already in PATH" % EXEC_PATH)
+        EXEC_PATH = '' # Don't set path if not exist
 else:
-    print("CROSS_TOOL = {} not yet supported" % CROSS_TOOL)
+    print("CROSS_TOOL = %s not yet supported" % CROSS_TOOL)
 
-# if os.getenv('RTT_EXEC_PATH'):
-# 	EXEC_PATH = os.getenv('RTT_EXEC_PATH')
+if os.getenv('RTT_EXEC_PATH'):
+	EXEC_PATH = os.getenv('RTT_EXEC_PATH')
 
 BUILD = 'debug'
 # Fixed configurations below
-NUCLEI_SDK_SOC = "hbird"
-NUCLEI_SDK_BOARD = "hbird_eval"
+NUCLEI_SDK_SOC = "demosoc"
+NUCLEI_SDK_BOARD = "nuclei_fpga_eval"
 # Configurable options below
 # DOWNLOAD: https://doc.nucleisys.com/nuclei_sdk/develop/buildsystem.html#download
 NUCLEI_SDK_DOWNLOAD = "ilm"

libcpu/risc-v/nuclei/cpuport.c

@@ -143,9 +143,7 @@ void rt_hw_context_switch_interrupt(rt_ubase_t from, rt_ubase_t to)
  */
 void rt_hw_context_switch(rt_ubase_t from, rt_ubase_t to)
 {
-    rt_interrupt_from_thread = from;
-    rt_interrupt_to_thread = to;
-    RT_YIELD();
+    rt_hw_context_switch_interrupt(from, to);
 }
 
 /**