RISC-V FPGA Board - increase memory in DTS file

[Jagan Sivakumar]

Hi Team

Is there any restriction riscv-pk that it will support maximum 256MB RAM.
When i increased RAM more than 256MB its not working

Regards
Jagan S


On Tue, Jan 25, 2022 at 2:21 PM Jagan Sivakumar <jagansua92 at gmail.com> wrote:
>
> HI Team
>
> I'm working on updating the FPGA board memory available within the
> RISC-V Linux operating system from 120 MB to a higher value.
> The board currently has a DDR4 2GB memory chip inside it.
>
> The DTS file's current settings for memory are shown below and it is
> working fine.
>
> memory at 80000000 {
> device_type = "memory";
> reg = <0x00000000 0x80000000 0x00000000 0x10000000>;
> }
>
> When I update the memory settings to double it as shown below, the
> Linux isn't booting. The DTS file configuration is printed on screen
> and it hangs after that step. Attached log for reference
>
> memory at 80000000 {
> device_type = "memory";
> reg = <0x00000000 0x80000000 0x00000000 0x20000000>;
> }
>
> Note: When i decreases the memory the values are reflecting in RAM
> size and its working
>
> --
> Regards
> Jagan Sivakumar



-- 
Regards
Jagan Sivakumar