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Get kexec working on SMP omap variants

Keerthy linux-arm-kernel linux-omap 1 version New

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  1. v1 Latest0 of 4 patches 0 repliesNew

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None of the 4 patches the cover letter announces are in this archive.

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Cover letter [PATCH 0/4] Get kexec working on SMP omap variants
Quoted 10 lines · Tony Lindgren

Hi all,

Here are some patches to make kexec work for SMP omaps. To test these you need to use the latest kexec-tools.git kexec with Russell's recent patches in "[PATCH 0/2] Simple fix to the ARM kexec tools implementation" thread fixed for 6x. Or else you need to use appended DTB.

I've tested these so far on 4430 duovero, omap5-uevm, and beagle-x15.

More testing done with above configuration + kexec_tools change below:
initrd_base = kernel_base + _ALIGN(len * 7, getpagesize());

kexec works fine on:

am437x-gp-evm, am437x-sk-evm
am335x-bone
dra72-evm
dra7-evm
omap5-uevm

Tested-by Keerthy <[email protected]>

Regards,
Keerthy

Quoted 22 lines

Regards,

Tony

Tony Lindgren (4):
ARM: OMAP4+: Initialize SAR RAM base early for proper CPU1 reset for
kexec
ARM: OMAP4+: Prevent CPU1 related hang with kexec
ARM: OMAP4+: Reset CPU1 properly for kexec
ARM: OMAP4+: Allow kexec on SMP variants

  arch/arm/mach-omap2/Makefile              |  4 +-
  arch/arm/mach-omap2/common.h              |  8 ++-
  arch/arm/mach-omap2/io.c                  |  3 +
  arch/arm/mach-omap2/omap-hotplug.c        |  6 ++
  arch/arm/mach-omap2/omap-mpuss-lowpower.c | 29 ++++++++--
  arch/arm/mach-omap2/omap-smp.c            | 96 ++++++++++++++++++++++---------
  arch/arm/mach-omap2/omap4-common.c        | 14 ++---
  7 files changed, 118 insertions(+), 42 deletions(-)

Read the cover letter in its thread