Forum Discussion

qwitza's avatar
qwitza
Icon for Occasional Contributor rankOccasional Contributor
9 months ago

Cyclone 5 first boot linux crashes, howto debug?

Hello, We have a design with a Cyclone V FPGA. Some boards only boot after a reset following power-on. Problem: The Debian Linux with U-Boot boots from the SD card, but after approximately 10 seco...
Board Debug
Fpga Devkit
tehjingy_Altera's avatar
tehjingy_Altera
Icon for Regular Contributor rankRegular Contributor
9 months ago

Hi


Are you able to still boot into the uboot?


Regards

Jingyang, Teh


  • qwitza's avatar
    qwitza
    Icon for Occasional Contributor rankOccasional Contributor
    9 months ago

    Hello,

    uboot and debian are booted every time.

    but after writing the fpga firmware debian crashes, no input or other possible hard crash

    9.697986] socfpga-dwmac ff702000.ethernet eth0: Link is Up - 1Gbps/Full - flow control rx/tx
    [ 9.706611] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
    Debian GNU/Linux 10 ttyS0
    login: [ 37.347805] fpga_manager fpga0: writing socfpga.rbf to Altera SOCFPGA FPGA Manager
    login: [ 1477.077961] socfpga-dwmac ff702000.ethernet eth0: Link is Down

    if i disable the fpga firmware flash, it seems that the system bootup every time. the fpga firmware is written via devicetree update.

    thanks for the help!