[U-Boot] sf probe failed on Intel DNV-NS platform

[Hilbert Tu(杜睿哲_Pegatron)]

Hi,

I got following error message when using U-Boot as payload of Coreboot on Intel DNV-NS platform. I am checking if my dts file was incorrect configured for SPI flash device. Can anyone help? Thanks.
Errors:
Invalid bus 0 (err=-19)
Failed to initialize SPI flash at 0:0 (error -19)
====================================
My dts dump:
    aliases {
        serial0 = &serial;
        spi0 = &spi0;
    };
    config {
        silent_console = <0>;
    };
    chosen {
        stdout-path = "/serial";
    };
    tsc-timer {
        clock-frequency = <1000000000>;
    };
    pci {
        compatible = "pci-x86";
        u-boot,dm-pre-reloc;
        pch at 1f,0 {
             reg = <0x0000f800 0 0 0 0>;
             compatible = "intel,pch9";
             u-boot,dm-pre-reloc;
             #address-cells = <1>;
             #size-cells = <1>;
             spi0: spi {
                 #address-cells = <1>;
                 #size-cells = <0>;
                 compatible = "intel,ich9-spi";
                 intel,spi-lock-down;

                 spi-flash at 0 {
                     reg = <0>;
                     compatible = "winbond,w25q128bv", "spi-flash";
                     memory-map = <0xff800000 0x00800000>;
                 };
             };
        };
    };
    coreboot-fb {
        compatible = "coreboot-fb";
    };

Following is the dump of command “dm tree”
=> dm tree
Class      Probed  Driver      Name
----------------------------------------
root       [ + ]   root_drive  root_driver
rsa_mod_ex [   ]   mod_exp_sw  |-- mod_exp_sw
serial     [ + ]   ns16550_se  |-- serial
keyboard   [ + ]   i8042_kbd   |-- keyboard
sysreset   [   ]   x86-sysres  |-- reset
rtc        [   ]   rtc_mc1468  |-- rtc
timer      [ + ]   tsc_timer   |-- tsc-timer
pci        [ + ]   pci_x86     |-- pci
pci_generi [   ]   pci_generi  |   |-- pci_0:0.0
pci_generi [   ]   pci_generi  |   |-- pci_0:4.0
pci_generi [   ]   pci_generi  |   |-- pci_0:5.0
pci        [ + ]   pci_bridge  |   |-- pci_0:9.0
pci        [ + ]   pci_bridge  |   |-- pci_0:e.0
pci_generi [   ]   pci_generi  |   |   `-- pci_2:0.0
pci        [ + ]   pci_bridge  |   |-- pci_0:10.0
pci_generi [   ]   pci_generi  |   |-- pci_0:12.0
ahci       [   ]   ahci_pci    |   |-- ahci_pci
scsi       [   ]   ahci_scsi   |   |   `-- ahci_scsi
usb        [ + ]   xhci_pci    |   |-- xhci_pci
usb_hub    [ + ]   usb_hub     |   |   `-- usb_hub
pci        [ + ]   pci_bridge  |   |-- pci_0:16.0
pci_generi [   ]   pci_generi  |   |   |-- pci_4:0.0
pci_generi [   ]   pci_generi  |   |   `-- pci_4:0.1
pci        [ + ]   pci_bridge  |   |-- pci_0:17.0
pci_generi [   ]   pci_generi  |   |   |-- pci_5:0.0
pci_generi [   ]   pci_generi  |   |   `-- pci_5:0.1
pci_generi [   ]   pci_generi  |   |-- pci_0:18.0
pci_generi [   ]   pci_generi  |   |-- pci_0:1a.0
pci_generi [   ]   pci_generi  |   |-- pci_0:1a.1
pci_generi [   ]   pci_generi  |   |-- pci_0:1a.2
mmc        [ + ]   pci_mmc     |   |-- pci_mmc
blk        [   ]   mmc_blk     |   |   `-- pci_mmc.blk
pci_generi [   ]   pci_generi  |   |-- pci_0:1f.0
pci_generi [   ]   pci_generi  |   |-- pci_0:1f.2
pci_generi [   ]   pci_generi  |   |-- pci_0:1f.4
pci_generi [   ]   pci_generi  |   `-- pci_0:1f.5
video      [   ]   coreboot_v  `-- coreboot-fb

-Hilbert
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