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
