u-boot/arch/x86/dts/qemu-x86_i440fx.dts
Bin Meng 5c564226fc x86: qemu: Implement PIRQ routing
Support QEMU PIRQ routing via device tree on both i440fx and q35
platforms. With this commit, Linux booting on QEMU from U-Boot
has working ATA/SATA, USB and ethernet.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Acked-by: Simon Glass <sjg@chromium.org>
2015-06-04 03:03:18 -06:00

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/*
* Copyright (C) 2015, Bin Meng <bmeng.cn@gmail.com>
*
* SPDX-License-Identifier: GPL-2.0+
*/
/dts-v1/;
#include <dt-bindings/interrupt-router/intel-irq.h>
/include/ "skeleton.dtsi"
/include/ "serial.dtsi"
/ {
model = "QEMU x86 (I440FX)";
compatible = "qemu,x86";
config {
silent_console = <0>;
};
chosen {
stdout-path = "/serial";
};
pci {
compatible = "pci-x86";
#address-cells = <3>;
#size-cells = <2>;
u-boot,dm-pre-reloc;
ranges = <0x02000000 0x0 0xc0000000 0xc0000000 0 0x10000000
0x42000000 0x0 0xd0000000 0xd0000000 0 0x10000000
0x01000000 0x0 0x2000 0x2000 0 0xe000>;
irq-router@1,0 {
reg = <0x00000800 0 0 0 0>;
compatible = "intel,irq-router";
intel,pirq-config = "pci";
intel,pirq-link = <0x60 4>;
intel,pirq-mask = <0x0e40>;
intel,pirq-routing = <
/* PIIX UHCI */
PCI_BDF(0, 1, 2) INTD PIRQD
/* e1000 NIC */
PCI_BDF(0, 3, 0) INTA PIRQC
>;
};
};
};