10:35 <indy> hi all, i'm playing with pcie endpoint on beaglebine ai64 and i would like to set following:

10:35 <indy> Capabilities: [150 v1] Device Serial Number 00-00-00-00-00-00-00-00

14:48 <sv-ti> indy, regarding setting the device serial number for pcie (PCIE1 instance), the registers at addresses 0x0D800154 and 0x0D800158 can be written to via devmem2 or setpci utility. 0x0D800154 corresponds to the lower 32 bits of device serial number and 0x0D800158 corresponds to the upper 32 bits of device serial number.

14:50 <indy> sv-ti thanks a lot, i completely forgot of setpci

14:52 <indy> sv-ti, well setpci will not work probably as i have pcie controller in endpoint mode

14:55 <sv-ti> indy, devmem2 can be used in that case. The reset value of those registers is all zeros. You could use devmem2 to set them to a custom value as follows:

14:55 <sv-ti> devmem2 0x0D800154 <value-of-lower-32-bits-of-serial-number>

14:55 <sv-ti> devmem2 0x0D800158 <value-of-upper-32-bits-of-serial-number>

15:08 <indy> sv-ti, thanks, it worked https://dpaste.org/MqmJE :)

15:11 <indy> it is a shame that pciutils can't work with pci controller with endpoint mode

15:11 <indy> yet :)

15:20 <sv-ti> indy, glad to know that it worked :)