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Posted to commits@nuttx.apache.org by "GooTal (via GitHub)" <gi...@apache.org> on 2023/06/09 08:52:10 UTC
[GitHub] [nuttx] GooTal opened a new issue, #9501: How to run nuttx(kernel build) on real hardware instead of qemu semihosting?
GooTal opened a new issue, #9501:
URL: https://github.com/apache/nuttx/issues/9501
Hi, i`ve already ported Nuttx(kernel build) to LoongArch referring to qemu-rv:virt.
I notice that qemu-rv:virt used semihosting to load nsh_main\`s code into memory from host file system.
But on real hardware, it\`s necessary to load nsh_main\`s code from disk. I\`m trying to figure out how to load the related code.
I\`ve successfully run nuttx(flat build) on real hardware. Here\`s how i run it: I put the elf file under the `/boot/` directory of Linux. And loaded the elf by grub or pmon, then boot the kernel.
I hope to put the nuttx(kernel build) and `apps/bin/sh` under the `/boot/` directory of Linux. And use grub to boot my kernel, too. Is this a feasible way?
Could anyone provide some suggestions? Thanks a lot.
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[GitHub] [nuttx] lupyuen commented on issue #9501: How to run nuttx(kernel build) on real hardware instead of qemu semihosting?
Posted by "lupyuen (via GitHub)" <gi...@apache.org>.
lupyuen commented on issue #9501:
URL: https://github.com/apache/nuttx/issues/9501#issuecomment-1636975458
Hi: I have the same question while porting NuttX to [Star64 JH7110 SBC](https://github.com/lupyuen/nuttx-star64).
Fortunately the SBC runs on U-Boot Bootloader, so I'll try to use the [Initial RAM Disk (initrd)](https://docs.kernel.org/admin-guide/initrd.html) to load the Apps Filesystem with ROMFS.
Thanks for the suggestions! :-)
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[GitHub] [nuttx] xiaoxiang781216 commented on issue #9501: How to run nuttx(kernel build) on real hardware instead of qemu semihosting?
Posted by "xiaoxiang781216 (via GitHub)" <gi...@apache.org>.
xiaoxiang781216 commented on issue #9501:
URL: https://github.com/apache/nuttx/issues/9501#issuecomment-1584553823
> Hi, i`ve already ported Nuttx(kernel build) to LoongArch referring to qemu-rv:virt.
>
> I notice that qemu-rv:virt used semihosting to load nsh_main`s code into memory from host file system.
>
> But on real hardware, it`s necessary to load nsh_main`s code from disk. I`m trying to figure out how to load the related code.
>
> I`ve successfully run nuttx(flat build) on real hardware. Here`s how i run it: I put the elf file under the `/boot/` directory of Linux. And loaded the elf by grub or pmon, then boot the kernel.
>
> I hope to put the nuttx(kernel build) and `apps/bin/sh` under the `/boot/` directory of Linux. And use grub to boot my kernel, too. Is this a feasible way?
>
Yes, but you need mount /boot inside nuttx before nuttx can launch sh
> Could anyone provide some suggestions? Thanks a lot.
If the debugger can connect to your device through JTAG, you can continue use semihosting.
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[GitHub] [nuttx] GooTal commented on issue #9501: How to run nuttx(kernel build) on real hardware instead of qemu semihosting?
Posted by "GooTal (via GitHub)" <gi...@apache.org>.
GooTal commented on issue #9501:
URL: https://github.com/apache/nuttx/issues/9501#issuecomment-1586475869
>
> Yes, but you need mount /boot inside nuttx before nuttx can launch sh
>
But the `/boot` is on my SSD hard disk and i didn\`t find the code for SATA driver in nuttx. Is this still a feasible way?
I can only find out nand flash support. But i\`m running on a Desktop CPU so it\`s quite troublesome to port SATA driver all over again.😀
>
> If the debugger can connect to your device through JTAG, you can continue use semihosting.
>
Thanks, but the JTAG doesn\`t support it for now.
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[GitHub] [nuttx] GooTal commented on issue #9501: How to run nuttx(kernel build) on real hardware instead of qemu semihosting?
Posted by "GooTal (via GitHub)" <gi...@apache.org>.
GooTal commented on issue #9501:
URL: https://github.com/apache/nuttx/issues/9501#issuecomment-1586680774
> > But the `/boot` is on my SSD hard disk and i didn`t find the code for SATA driver in nuttx. Is this still a feasible way?
>
> Probably not. There is no SATA support in NuttX. NAND would not work either because there is no supported NAND-compatible file system.
>
> If you want to use a NuttX native file system, the easiest thing to do would be to use and internal ROMFS file system. I referred to this above:
>
> https://github.com/apache/nuttx/blob/master/boards/arm/sama5/sama5d4-ek/README.txt#L4127
>
> This requires some special initialization logic:
>
> https://github.com/apache/nuttx/blob/master/boards/arm/sama5/sama5d4-ek/src/sam_bringup.c#L233
Thank you so much. Let me read the related code.
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[GitHub] [nuttx] patacongo commented on issue #9501: How to run nuttx(kernel build) on real hardware instead of qemu semihosting?
Posted by "patacongo (via GitHub)" <gi...@apache.org>.
patacongo commented on issue #9501:
URL: https://github.com/apache/nuttx/issues/9501#issuecomment-1586513797
> But the `/boot` is on my SSD hard disk and i didn`t find the code for SATA driver in nuttx. Is this still a feasible way?
Probably not. There is no SATA support in NuttX. NAND would not work either because there is no supported NAND-compatible file system.
If you want to use a NuttX native file system, the easiest thing to do would be to use and internal ROMFS file system. I referred to this above:
https://github.com/apache/nuttx/blob/master/boards/arm/sama5/sama5d4-ek/README.txt#L4127
This requires some special initialization logic:
https://github.com/apache/nuttx/blob/master/boards/arm/sama5/sama5d4-ek/src/sam_bringup.c#L233
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[GitHub] [nuttx] patacongo commented on issue #9501: How to run nuttx(kernel build) on real hardware instead of qemu semihosting?
Posted by "patacongo (via GitHub)" <gi...@apache.org>.
patacongo commented on issue #9501:
URL: https://github.com/apache/nuttx/issues/9501#issuecomment-1584575667
There are some general instructions for a few ARM platforms. I used the SAMA5D4-EK in the past with the root file system on an SD card. I put instructions in the board README.txt file:
Using SAMA5D with file system on SD Card
https://github.com/apache/nuttx/blob/master/boards/arm/sama5/sama5d4-ek/README.txt#L4091
I also noticed these:
Using qemu-system-arm:
https://github.com/apache/nuttx/blob/master/boards/arm/imx6/sabre-6quad/README.txt#L892
https://github.com/apache/nuttx/blob/master/boards/arm/imx6/sabre-6quad/README.txt#L929
You could also check the RISC-V board README files to see if instructioins were provided:
boards/risc-v/litex/arty_a7/configs/knsh/defconfig:CONFIG_BUILD_KERNEL=y
boards/risc-v/mpfs/icicle/configs/knsh/defconfig:CONFIG_BUILD_KERNEL=y
boards/risc-v/qemu-rv/rv-virt/configs/knetnsh64/defconfig:CONFIG_BUILD_KERNEL=y
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