Browse Source
We generate a flattened device tree programmatically for VOF. Change this to load the static parts from a device tree blob and only generate the parts that depend on run time conditions such as CPU type, memory size and PCI devices. Moving the static parts in a dts makes the board code simpler and more generic. Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Link: https://lore.kernel.org/qemu-devel/383891fc2696609b27d2de9773efe1b4f493e333.1761176219.git.balaton@eik.bme.hu Signed-off-by: Harsh Prateek Bora <harshpb@linux.ibm.com>pull/307/head
BALATON Zoltan
10 months ago
committed by
Harsh Prateek Bora
Harsh Prateek Bora
4 changed files with 219 additions and 240 deletions
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/* |
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* QEMU Pegasos2 Device Tree Source |
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* |
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* Copyright 2025 BALATON Zoltan |
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* SPDX-License-Identifier: GPL-2.0-or-later |
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* |
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* This is partial source, more info will be filled in by board code. |
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*/ |
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/dts-v1/; |
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/ { |
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#address-cells = <1>; |
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device_type = "chrp"; |
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model = "Pegasos2"; |
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revision = "2B"; |
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CODEGEN,vendor = "bplan GmbH"; |
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CODEGEN,board = "Pegasos2"; |
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CODEGEN,description = "Pegasos CHRP PowerPC System"; |
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openprom { |
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model = "Pegasos2,1.1"; |
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}; |
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chosen { |
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}; |
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memory@0 { |
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device_type = "memory"; |
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reg = <0 0>; |
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}; |
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cpus { |
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#size-cells = <0>; |
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#address-cells = <1>; |
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#cpus = <1>; |
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}; |
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rtas { |
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rtas-version = <1>; |
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rtas-size = <20>; |
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rtas-display-device = <0>; |
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rtas-event-scan-rate = <0>; |
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rtas-error-log-max = <0>; |
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restart-rtas = <0>; |
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nvram-fetch = <1>; |
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nvram-store = <2>; |
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get-time-of-day = <3>; |
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set-time-of-day = <4>; |
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event-scan = <6>; |
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/* Pegasos2 firmware misspells check-exception */ |
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check-execption = <7>; |
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read-pci-config = <8>; |
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write-pci-config = <9>; |
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display-character = <10>; |
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set-indicator = <11>; |
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power-off = <17>; |
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suspend = <18>; |
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hibernate = <19>; |
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system-reboot = <20>; |
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}; |
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failsafe { |
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device_type = "serial"; |
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}; |
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pci@80000000 { |
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device_type = "pci"; |
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#address-cells = <3>; |
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#size-cells = <2>; |
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clock-frequency = <33333333>; |
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ranges = <0x01000000 0 0x00000000 0xfe000000 0 0x00010000 |
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0x02000000 0 0x80000000 0x80000000 0 0x40000000>; |
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8259-interrupt-acknowledge = <0xf1000cb4>; |
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reg = <0x80000000 0x40000000>; |
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pci-bridge-number = <0>; |
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bus-range = <0 0>; |
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isa@c { |
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vendor-id = <0x1106>; |
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device-id = <0x8231>; |
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revision-id = <0x10>; |
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class-code = <0x60100>; |
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/* Pegasos firmware has subsystem-id and |
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subsystem-vendor-id swapped */ |
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subsystem-id = <0x1af4>; |
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subsystem-vendor-id = <0x1100>; |
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reg = <0x6000 0 0 0 0>; |
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device_type = "isa"; |
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#address-cells = <2>; |
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#size-cells = <1>; |
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eisa-slots = <0>; |
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clock-frequency = <8333333>; |
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slot-names = <0>; |
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serial@i2f8 { |
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device_type = "serial"; |
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reg = <1 0x2f8 8>; |
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interrupts = <3 0>; |
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clock-frequency = <1843200>; |
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compatible = "pnpPNP,501"; |
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}; |
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8042@i60 { |
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device_type = ""; |
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reg = <1 0x60 5>; |
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clock-frequency = <0>; |
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compatible = "chrp,8042"; |
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interrupt-controller = ""; |
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#address-cells = <1>; |
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#size-cells = <0>; |
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#interrupt-cells = <2>; |
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}; |
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keyboard@i60 { |
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device_type = "keyboard"; |
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reg = <1 0x60 5>; |
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interrupts = <1 0>; |
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compatible = "pnpPNP,303"; |
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}; |
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rtc@i70 { |
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device_type = "rtc"; |
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reg = <1 0x70 2>; |
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interrupts = <8 0>; |
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clock-frequency = <0>; |
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compatible = "ds1385-rtc"; |
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}; |
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timer@i40 { |
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device_type = "timer"; |
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reg = <1 0x40 8>; |
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clock-frequency = <0>; |
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compatible = "pnpPNP,100"; |
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}; |
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fdc@i3f0 { |
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device_type = "fdc"; |
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reg = <1 0x3f0 8>; |
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interrupts = <6 0>; |
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clock-frequency = <0>; |
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compatible = "pnpPNP,700"; |
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}; |
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lpt@i3bc { |
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device_type = "lpt"; |
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reg = <1 0x3bc 8>; |
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interrupts = <7 0>; |
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clock-frequency = <0>; |
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compatible = "pnpPNP,400"; |
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}; |
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}; |
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}; |
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pci@c0000000 { |
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device_type = "pci"; |
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#address-cells = <3>; |
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#size-cells = <2>; |
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clock-frequency = <66666666>; |
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ranges = <0x01000000 0 0x00000000 0xf8000000 0 0x00010000 |
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0x02000000 0 0xc0000000 0xc0000000 0 0x20000000>; |
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reg = <0xc0000000 0x20000000>; |
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pci-bridge-number = <1>; |
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bus-range = <0 0>; |
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}; |
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}; |
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