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Message-Id: <1290706801-7323-1-git-send-email-bigeasy@linutronix.de>
Date: Thu, 25 Nov 2010 18:39:50 +0100
From: Sebastian Andrzej Siewior <bigeasy@...utronix.de>
To: linux-kernel@...r.kernel.org
Cc: sodaville@...utronix.de, x86@...nel.org
Subject: Add device tree support for x86
This patchset introduces device tree support on x86. The device tree is
passed by the bootloader via setup_data. It is used as an additional
source of information and does not replace the "traditional" x86 boot
page.
Right now we get the the following information from it:
- hpet location
- apic & ioapic location
- ioapic's interrupt routing
- legacy devices which are not initialized by bios
- devices which are behind a bus which does not support enumeration like
i2c
The series is based on the tip tree and is also available at
git://git.linutronix.de/users/bigeasy/soda.git ce_of
Sebastian Andrzej Siewior (11):
x86/kernel: remove conditional early remap in parse_e820_ext
x86: Add device tree support
x86/dtb: Add a device tree for CE4100
x86/dtb: add irq host abstraction
x86/dtb: add early parsing of APIC and IO APIC
x86/dtb: add support hpet
x86/dtb: add support for PCI devices backed by dtb nodes
x86/dtb: Add generic bus probe
x86/ioapic: Add OF bindings for IO-APIC
x86/io_apic: add simply id set
x86/ce4100: use OF for ioapic
Documentation/x86/boot_with_dtb.txt | 20 ++
arch/x86/Kconfig | 7 +
arch/x86/include/asm/bootparam.h | 1 +
arch/x86/include/asm/e820.h | 2 +-
arch/x86/include/asm/io_apic.h | 8 +
arch/x86/include/asm/irq_controller.h | 12 +
arch/x86/include/asm/prom.h | 67 ++++++
arch/x86/kernel/Makefile | 1 +
arch/x86/kernel/apic/io_apic.c | 144 +++++++++++++
arch/x86/kernel/e820.c | 8 +-
arch/x86/kernel/irqinit.c | 9 +-
arch/x86/kernel/prom.c | 370 +++++++++++++++++++++++++++++++++
arch/x86/kernel/setup.c | 15 ++-
arch/x86/platform/ce4100/ce4100.c | 16 ++-
arch/x86/platform/ce4100/ce4100.dts | 210 +++++++++++++++++++
15 files changed, 877 insertions(+), 13 deletions(-)
create mode 100644 Documentation/x86/boot_with_dtb.txt
create mode 100644 arch/x86/include/asm/irq_controller.h
create mode 100644 arch/x86/include/asm/prom.h
create mode 100644 arch/x86/kernel/prom.c
create mode 100644 arch/x86/platform/ce4100/ce4100.dts
Sebastian
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