[PATCH v3 0/1] Add basic SPI support on TH1520

Emil Renner Berthing emil.renner.berthing at canonical.com
Fri Jul 26 01:19:51 PDT 2024


Drew Fustini wrote:
> On Fri, Jul 05, 2024 at 03:04:58PM +0530, Kanak Shilledar wrote:
> > Implemented basic SPI support for TH1520 SoC. There are two SPIs reserved
> > on the LicheePi4A, one on the SPI Flash pads that are blanked out on the
> > back, and one on the pins. I implemented the one connected to the pad.
> >
> > It is using a fixed clock of 396MHz. The address and clock frequency was
> > referenced from the TH1520 System Reference Manual [1].
> >
> > [...]
>
> Applied to thead-dt-for-next, thanks!

Hi Drew,

Are you sure you want to merge this patch? It adds another dummy clock for the
SPI, but the next kernel should have your clock driver that actually models the
SPI clock.
Also the clock driver says the SPI clock has a frequency of 792MHz, eg. double
of what this dummy clock is set to.

/Emil



More information about the linux-riscv mailing list