Pogoplug V4 88F6192 TCLK problem

[Jedi Tek'Unum]

Noob here - be gentle :)

I’ve got a couple Pogoplug V4 boxes that have Kirkwood 88F6192 (A1 variant) chip which is similar to 88F6281 except it is 800Mhz with 166Mhz TCLK.

Using 10.1 the timekeeping is slow which I believe is because it thinks this is a 6281/200Mhz.

I’m running a modified u-boot with this curious comment: u-boot-kirkwood/cpu.c at 2014.07.c-kirkwood · mibodhi/u-boot-kirkwood. Indeed in freebsd, soc_id() is getting 0x6281 and reports:

	SOC: Marvell 88F6281 rev A1, TClock 200MHz

The chip manual says the PCIE vendor id register is read only and should give 0x6192 so I’m confused.

I created a conf based on DOCKSTAR and a .dts based on db88f6281.dts so that pcie is available. With pcie I have the USB 3 ports working and even wifi. Nice tiny box if only it could keep time!