Hi Benoit, There was a bit of a discussion about interrupt routing a while back (Dec 2015) on FSP Baytrail. Apparently the IRQs were not swizzled correctly.
https://review.coreboot.org/#/c/12684/ If you are not using a recent version of coreboot, you may need to back-port that change. Ben On Wed, Feb 10, 2016 at 3:00 PM, benoit <benoit.sans...@gmail.com> wrote: > Hi all, > > I am facing a legacy IRQ under OS. > I am currently using Coreboot + FSP on baytrail. > My OS is running with IRQ in legacy using PIRQ described in > coreboot/src/mainboard/intel/bayleybay_fsp/irqroute.h . > Under the OS USB, SATA, SMBus are working well using legacy interrupt. > Nevertheless I have an ethernet device connected on the PCIe root #4 and > no IRQs are received. > > I tried to change the IRQ in the interrupt line register without success. > > I can compare also with a Phoenix BIOS, and with the same OS binary the > ethernet is working. > > I check out also the ilb registers + 0x4d0 and 0x4d1 registers (ECL). > Everything is correctly initalized. > > Do I need to activate/deactivate something in the PCIe root #4 to > forward legacy interrupt to the 8259 PIC ? > > Many thanks in advance > Benoit > > -- > coreboot mailing list: coreboot@coreboot.org > http://www.coreboot.org/mailman/listinfo/coreboot -- coreboot mailing list: coreboot@coreboot.org http://www.coreboot.org/mailman/listinfo/coreboot
