Kernel restart issue while trying to read or write from the address space of hps2fpga and lwhps2fpga

[ManthanWankar]

Currently working on a Arria 10 FPGA and faced this issue while trying to access the gpio connected on the lwhps to fpga bridge but when i try to access the lwhps2fpgs address section(0xff200000) my kernel stucks and restarts.

below i have mentioned the bridge device tree

fpga-bridge@ff200000 {
compatible = “altr,socfpga-lwhps2fpga-bridge”;
reg = <0xff200000 0x00200000>;
resets = <0x06 0x61>;
clocks = <0x08>;
bridge-enable = <0x01>;
altr,l3-syscon = <0x99>;
phandle = <0x5b>;
init_val = <1>;

};

fpga-bridge@c0000000 {
compatible = “altr,socfpga-hps2fpga-bridge”;
reg = <0xc0000000 0x3c000000>;
resets = <0x06 0x60>;
clocks = <0x08>;
bridge-enable = <0x01>;
altr,l3-syscon = <0x99>;
phandle = <0x5c>;
init_val = <1>;
};
been following this guide from rocket board: https://www.rocketboards.org/foswiki/Documentation/BuildingBootloaderCycloneVAndArria10
and also can any one please share the correct device tree for fpga2hps and fpgs2sdram bridge device tree node

[ManthanWankar]

Hey,

got it working , upgraded to quartus 23.2 and downloaded the GSRD again, made changes on the lwhps2fpga bridge and had a reset which was mapped from top module to qsys which further was mapped to bridges.  that reset was causing the restart issue, solved it .