u-boot/arch/x86/dts/qemu-x86_q35.dts
Bin Meng c79cbb5952 x86: dts: Define a default TSC timer frequency
If for some reason, TSC timer frequency cannot be determined from
hardware, nor is it specified in the device tree, U-Boot will panic
resulting in endless reset during boot.

Let's define a default TSC timer frequency using the Kconfig value
CONFIG_X86_TSC_TIMER_FREQ (note: #include must be used instead of
/include/ otherwise the macro is not pre-processed).

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2021-08-02 15:11:40 +08:00

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1.8 KiB
Text

// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (C) 2015, Bin Meng <bmeng.cn@gmail.com>
*/
/dts-v1/;
#include <dt-bindings/interrupt-router/intel-irq.h>
/* ICH9 IRQ router has discrete PIRQ control registers */
#undef PIRQE
#undef PIRQF
#undef PIRQG
#undef PIRQH
#define PIRQE 8
#define PIRQF 9
#define PIRQG 10
#define PIRQH 11
/include/ "skeleton.dtsi"
/include/ "serial.dtsi"
/include/ "keyboard.dtsi"
/include/ "reset.dtsi"
/include/ "rtc.dtsi"
#include "tsc_timer.dtsi"
#include "smbios.dtsi"
/ {
model = "QEMU x86 (Q35)";
compatible = "qemu,x86";
config {
silent_console = <0>;
u-boot,no-apm-finalize;
};
chosen {
stdout-path = "/serial";
};
cpus {
#address-cells = <1>;
#size-cells = <0>;
u-boot,dm-pre-reloc;
cpu@0 {
device_type = "cpu";
compatible = "cpu-qemu";
u-boot,dm-pre-reloc;
reg = <0>;
intel,apic-id = <0>;
};
};
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>;
pch@1f,0 {
reg = <0x0000f800 0 0 0 0>;
compatible = "intel,pch9";
u-boot,dm-pre-reloc;
irq-router {
compatible = "intel,irq-router";
u-boot,dm-pre-reloc;
intel,pirq-config = "pci";
intel,actl-8bit;
intel,actl-addr = <0x44>;
intel,pirq-link = <0x60 8>;
intel,pirq-mask = <0x0e40>;
intel,pirq-routing = <
/* e1000 NIC */
PCI_BDF(0, 2, 0) INTA PIRQG
/* ICH9 UHCI */
PCI_BDF(0, 29, 0) INTA PIRQA
PCI_BDF(0, 29, 1) INTB PIRQB
PCI_BDF(0, 29, 2) INTC PIRQC
/* ICH9 EHCI */
PCI_BDF(0, 29, 7) INTD PIRQD
/* ICH9 SATA */
PCI_BDF(0, 31, 2) INTA PIRQA
>;
};
};
};
};