Hi there I'm testing U-boot as Coreboot payload on Intel board. It boots into U-boot shell but fails to detect AHCI controller. SCSI: Error: SCSI Controller(s) 8086:19B2 8086:19C2 not found

AHCI SCSI devices are defined in coreboot.h, #define CONFIG_SCSI_AHCI #define CONFIG_SCSI_DEV_LIST {PCI_VENDOR_ID_INTEL, \ 0x19b2}, \ {PCI_VENDOR_ID_INTEL, \ 0x19c2}

I debug into scsi_init(void). It goes through a loop to try to find PCI device for the AHCI controllers defined above in coreboot.h . I tried the new code "enable driver mode for PCI" and the old code using pci_find_device() function, but both fail to find the devices.

#ifdef CONFIG_DM_PCI struct udevice *dev; int ret;

ret = dm_pci_find_device(scsi_device_list[i].vendor, scsi_device_list[i].device, 0, &dev); if (!ret) { busdevfunc = dm_pci_get_bdf(dev); break; } #else busdevfunc = pci_find_device(scsi_device_list[i].vendor, scsi_device_list[i].device, 0); #endif

My device tree file below is a barebone which only defines serial port, keyboard, timer. They work fine. I wonder that in order to find AHCI controller, shall I add some definition for PCI device into the device tree file? What's the minimum definition shall I add?

/include/ "skeleton.dtsi" /include/ "keyboard.dtsi" /include/ "serial.dtsi" /include/ "rtc.dtsi" /include/ "tsc_timer.dtsi"

/ { #address-cells = <1>; #size-cells = <1>; model = "Google Alex"; compatible = "google,alex", "intel,atom-pineview";

config { silent_console = <0>; };

gpio: gpio {};

serial { reg = <0x1000 8>; clock-frequency = <115200>; };

tsc-timer { clock-frequency = <1000000000>; };

chosen { stdout-path = "/serial"; };

memory { device_type = "memory"; reg = <0 0>; };

};

Thanks a lot, Chi -------------------------------------------------------------- Intel Research and Development Ireland Limited Registered in Ireland Registered Office: Collinstown Industrial Park, Leixlip, County Kildare Registered Number: 308263

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