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qwitza's avatar
qwitza
Icon for Occasional Contributor rankOccasional Contributor
10 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
10 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
10 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!