29d3ed2ec1
* arch: risc-v: Remove unused typedef for irqstate_t
NOTE: irqstate_t is defined in arch/risc-v/include/types.h
* arch: risc-v: Add typedef irqstate_t for __LP64__
* arch: risc-v: Add SMP support to K210 (RV64GC) processor
* boards: maxi-bit: Update READMEs and add smp/defconfig
37 lines
1000 B
Plaintext
37 lines
1000 B
Plaintext
1. Download and install toolchain and openocd-k210
|
|
|
|
$ curl https://static.dev.sifive.com/dev-tools/riscv64-unknown-elf-gcc-8.3.0-2019.08.0-x86_64-linux-ubuntu14.tar.gz
|
|
|
|
2. Build openocd-k210
|
|
|
|
$ git clone https://github.com/kendryte/openocd-kendryte
|
|
$ cd openocd-kendryte
|
|
$ ./bootstrap & ./configure & make
|
|
|
|
3. Configure and build NuttX
|
|
|
|
$ mkdir ./nuttx; cd ./nuttx
|
|
$ git clone https://bitbucket.org/nuttx/nuttx.git
|
|
$ git clone https://bitbucket.org/nuttx/apps.git
|
|
$ cd nuttx
|
|
$ make distclean
|
|
$ ./tools/configure.sh maix-bit:nsh
|
|
$ make V=1
|
|
|
|
4. Download and run the nuttx from SRAM (not SPI-Flash)
|
|
|
|
$ picocom -b 115200 /dev/ttyUSB0
|
|
$ sudo ./src/openocd -s ./tcl -f ./tcl/kendryte.cfg -m 0
|
|
$ riscv64-unknown-elf-gdb ./nuttx
|
|
(gdb) target extended-remote :3333
|
|
(gdb) load nuttx
|
|
(gdb) c
|
|
|
|
5. TODO
|
|
|
|
PLL setting (currently CPU clock freq is assumed to be 416MHz)
|
|
Boot from SPI-Flash
|
|
Support peripherals such as GPIO/SPI/I2C/...
|
|
Support FPU
|
|
Support RISC-V User mode
|