|From:||Sebastian Andrzej Siewior <firstname.lastname@example.org>|
|Subject:||Add device tree support for x86, v2|
|Date:||Fri, 17 Dec 2010 16:33:38 +0100|
|Cc:||email@example.com, firstname.lastname@example.org, email@example.com|
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 Histrory: - v1 initial post - v2: Benh took my device tree apart so once this got fixed I refactor a lot of code. Here are the changes: - device tree is unflattenend before kmalloc() is working, alloc_bootmem() is used for that. - irq_host got renamed to irq_domain. This custom implementation will leave once the powerpc implementation is in generic shape - of_irq_map_pci() is moved from ppc & microblaze into drivers/of and used also by x86 instead of a tiny subset of it. Bridges are not handled at all on x86 (I don't have any so for so I worry later) - the device tree is relocated from its initial location. That means that the boot loader does not need to know anything about kernel's memory layout. The series is based on the tip tree and is also available at git://git.linutronix.de/users/bigeasy/soda.git ce_of_v2 Sebastian Andrzej Siewior (15): x86/e820: remove conditional early mapping in parse_e820_ext x86: Add device tree support x86/dtb: Add a device tree for CE4100 x86/dtb: add irq domain abstraction x86/dtb: add early parsing of APIC and IO APIC x86/dtb: add support hpet of: move of_irq_map_pci() into generic code 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/ce4100: use OF for ioapic of/address: use propper endianess in get_flags x86/rtc: don't register rtc if we have an OF node for it rtc/cmos: add OF bindings x86/pci: remove warning Documentation/powerpc/dts-bindings/rtc-cmos.txt | 28 ++ Documentation/x86/boot_with_dtb.txt | 26 ++ arch/microblaze/include/asm/prom.h | 15 - arch/microblaze/kernel/prom_parse.c | 77 ----- arch/microblaze/pci/pci-common.c | 1 + arch/powerpc/include/asm/prom.h | 17 +- arch/powerpc/kernel/pci-common.c | 1 + arch/powerpc/kernel/prom_parse.c | 84 ------ 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 | 7 + arch/x86/include/asm/irq_controller.h | 12 + arch/x86/include/asm/prom.h | 87 ++++++ arch/x86/kernel/Makefile | 1 + arch/x86/kernel/apic/io_apic.c | 99 +++++++ arch/x86/kernel/e820.c | 8 +- arch/x86/kernel/irqinit.c | 9 +- arch/x86/kernel/prom.c | 349 +++++++++++++++++++++++ arch/x86/kernel/rtc.c | 23 ++ arch/x86/kernel/setup.c | 24 ++- arch/x86/pci/ce4100.c | 2 +- arch/x86/platform/ce4100/ce4100.c | 24 ++- arch/x86/platform/ce4100/falconfalls.dts | 212 ++++++++++++++ drivers/of/Makefile | 1 + drivers/of/address.c | 54 ++-- drivers/of/of_pci.c | 97 +++++++ drivers/rtc/rtc-cmos.c | 40 +++ include/linux/of_address.h | 6 +- include/linux/of_pci.h | 24 ++ 30 files changed, 1097 insertions(+), 241 deletions(-) create mode 100644 Documentation/powerpc/dts-bindings/rtc-cmos.txt 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/falconfalls.dts create mode 100644 drivers/of/of_pci.c create mode 100644 include/linux/of_pci.h Sebastian -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to firstname.lastname@example.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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