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2013-10-24Docs: arm64: booting: clarify boot requirementsMark Rutland1-14/+31
There are a few points in the arm64 booting document which are unclear (such as the initial state of secondary CPUs), and/or have not been documented (PSCI is a supported mechanism for booting secondary CPUs). This patch amends the arm64 boot document to better express the (existing) requirements, and to describe PSCI as a supported booting mechanism. Signed-off-by: Mark Rutland <mark.rutland@arm.com> Reviewed-by: Will Deacon <will.deacon@arm.com> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Dave Martin <dave.martin@arm.com> Cc: Marc Zyngier <marc.zyngier@arm.com> Cc: Fu Wei <tekkamanninja@gmail.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2013-09-05Documentation/arm64: clarify requirements for DTB placementMark Salter1-3/+3
The current description of DTB placement requirements does not quite match the kernel code in head.S: __vet_fdt and __create_page_tables. This patch tweaks the text to match the actual requirements placed on it by the code. Signed-off-by: Mark Salter <msalter@redhat.com> Acked-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2013-08-22arm64: Expand arm64 image headerRoy Franz1-3/+13
Expand the arm64 image header to allow for co-existance with PE/COFF header required by the EFI stub. The PE/COFF format requires the "MZ" header to be at offset 0, and the offset to the PE/COFF header to be at offset 0x3c. The image header is expanded to allow 2 instructions at the beginning to accommodate a benign intruction at offset 0 that includes the "MZ" header, a magic number, and the offset to the PE/COFF header. Signed-off-by: Roy Franz <roy.franz@linaro.org> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2012-09-17arm64: Kernel booting and initialisationCatalin Marinas1-0/+152
The patch adds the kernel booting and the initial setup code. Documentation/arm64/booting.txt describes the booting protocol on the AArch64 Linux kernel. This is subject to change following the work on boot standardisation, ACPI. Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Acked-by: Nicolas Pitre <nico@linaro.org> Acked-by: Tony Lindgren <tony@atomide.com> Acked-by: Olof Johansson <olof@lixom.net> Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Acked-by: Arnd Bergmann <arnd@arndb.de>