lkml.org 
[lkml]   [2010]   [Nov]   [25]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
SubjectAdd device tree support for x86
Date
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



\
 
 \ /
  Last update: 2010-11-25 18:45    [W:0.207 / U:16.416 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site