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MV's avatar
MV
Icon for Occasional Contributor rankOccasional Contributor
3 years ago
Solved

Verify BSP settings

I am developing a system using Cyclone V under Linux OS. Up to now I was focused on rebuilding of the kernel and device tree. The device tree that is loaded contains the HPS peripherals I am looking...
  • MV's avatar
    MV
    3 years ago

    Got that one resolved!
    I decided to re-build bootloader and tried to follow the GSRD v14.0 - Generating and Compiling the Preloader
    When I copied the binary to my uSD card the system didn't boot - likely some of the important details like partition type etc. I went back to my previous scripts that use mainline u-boot (branch v2019.07).
    After some searching how the BSP specific information gets included into the u-boot-with-spl_DE0.sfp u-boot binary I discovered in the u-boot build tree the file

    board/terasic/de0-nano-soc/qts/pinmux_config.h

    I edited desired "...USEFPGA" values to "1"

        abbreviated ...
            1, /* UART1USEFPGA */
	0, /* CAN1USEFPGA */
	0, /* USB1USEFPGA */
	0, /* I2C3USEFPGA */
	1, /* I2C2USEFPGA */
    ...

    rebuilt the u-boot, placed on my uSD card and the previously failing kernel with corresponding drivers and device tree started to work as expected.
    Hoping this may help someone else.
    Martin

MV's avatar
MV
Icon for Occasional Contributor rankOccasional Contributor
3 years ago

Got that one resolved!
I decided to re-build bootloader and tried to follow the GSRD v14.0 - Generating and Compiling the Preloader
When I copied the binary to my uSD card the system didn't boot - likely some of the important details like partition type etc. I went back to my previous scripts that use mainline u-boot (branch v2019.07).
After some searching how the BSP specific information gets included into the u-boot-with-spl_DE0.sfp u-boot binary I discovered in the u-boot build tree the file

board/terasic/de0-nano-soc/qts/pinmux_config.h

I edited desired "...USEFPGA" values to "1"

    abbreviated ...
        1, /* UART1USEFPGA */
	0, /* CAN1USEFPGA */
	0, /* USB1USEFPGA */
	0, /* I2C3USEFPGA */
	1, /* I2C2USEFPGA */
...

rebuilt the u-boot, placed on my uSD card and the previously failing kernel with corresponding drivers and device tree started to work as expected.
Hoping this may help someone else.
Martin