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Usama Arif
b2473a3597
__pa() is only intended to be used for linear map addresses and using
it for initial_boot_params which is in fixmap for arm64 will give an
incorrect value. Hence save the physical address when it is known at
boot time when calling early_init_dt_scan for arm64 and use it at kexec
time instead of converting the virtual address using __pa().
Note that arm64 doesn't need the FDT region reserved in the DT as the
kernel explicitly reserves the passed in FDT. Therefore, only a debug
warning is fixed with this change.
Reported-by: Breno Leitao <[email protected]>
Suggested-by: Mark Rutland <[email protected]>
Signed-off-by: Usama Arif <[email protected]>
Fixes: ac10be5cdb ("arm64: Use common of_kexec_alloc_and_setup_fdt()")
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Rob Herring (Arm) <[email protected]>
28 lines
685 B
C
28 lines
685 B
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* OpenRISC prom.c
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*
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* Linux architectural port borrowing liberally from similar works of
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* others. All original copyrights apply as per the original source
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* declaration.
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*
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* Modifications for the OpenRISC architecture:
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* Copyright (C) 2010-2011 Jonas Bonn <[email protected]>
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*
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* Architecture specific procedures for creating, accessing and
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* interpreting the device tree.
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*/
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#include <linux/init.h>
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#include <linux/types.h>
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#include <linux/memblock.h>
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#include <linux/of_fdt.h>
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#include <asm/page.h>
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void __init early_init_devtree(void *params)
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{
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early_init_dt_scan(params, __pa(params));
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memblock_allow_resize();
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}
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