Support for device-tree appended to zImage
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Cover letter [PATCH 0/4] Support for device-tree appended to zImage
Hi Shawn,
I'm using Grant's tree with Nicolas Pitre's patch to the compressed image wrapper. His patches went out to the ARM list and I'm told they were accepted. These patches may not yet be in Grant's tree. These patches are titled:
[PATCH 1/2] ARM: improvements to compressed/head.S
[PATCH 2/2] ARM: remove the 4x expansion presumption while decompressing the kernel
Grant, is there a branch in your tree that people should be using, or should be they applying both sets of patches?
- John
Quoted 29 lines · Shawn Guo
Hi John,
Quoted 15 lines · John Bonesio
The following series support for device tree binary blobs (dtb) that are appended to the compressed kernel image (zImage).
Having appended dtb data is not required to boot with a device tree. If no dtb data is appended to zImage, the kernel will boot using prior methods.
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John Bonesio (4):
ARM:boot:device tree: Allow the device tree binary to be appended to zImage ARM:boot:device tree: Merge specific atags into the device tree ARM:boot:device tree: Add puthex routine for use in the boot wrapper ARM:boot:device tree: Allow multiple device trees to be appended to zImageQuoted 8 lines
arch/arm/Kconfig | 7 ++ arch/arm/boot/compressed/Makefile | 31 +++++++- arch/arm/boot/compressed/atags.c | 70 +++++++++++++++++++ arch/arm/boot/compressed/head.S | 136 +++++++++++++++++++++++++++++++++++-- arch/arm/boot/compressed/misc.c | 134 ++++++++++++++++++++++++++++++++++++ 5 files changed, 365 insertions(+), 13 deletions(-) create mode 100644 arch/arm/boot/compressed/atags.cI'm trying to test and use it. But it does not apply against any tree that I can find, neither mainline nor Grant's tree. Need rebasing?