| From | Hanjun Guo <> | Subject | [PATCH v8 10/21] ARM64 / ACPI: If we chose to boot from acpi then disable FDT | Date | Mon, 2 Feb 2015 20:45:38 +0800 |
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From: Graeme Gregory <graeme.gregory@linaro.org>
If the early boot methods of acpi are happy that we have valid ACPI tables and acpi=force has been passed, then do not unflat devicetree effectively disabling further hardware probing from DT.
CC: Catalin Marinas <catalin.marinas@arm.com> CC: Will Deacon <will.deacon@arm.com> Tested-by: Suravee Suthikulpanit <Suravee.Suthikulpanit@amd.com> Tested-by: Yijing Wang <wangyijing@huawei.com> Tested-by: Mark Langsdorf <mlangsdo@redhat.com> Tested-by: Jon Masters <jcm@redhat.com> Tested-by: Timur Tabi <timur@codeaurora.org> Signed-off-by: Graeme Gregory <graeme.gregory@linaro.org> Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org> --- arch/arm64/kernel/setup.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/arch/arm64/kernel/setup.c b/arch/arm64/kernel/setup.c index 510a681..553967d 100644 --- a/arch/arm64/kernel/setup.c +++ b/arch/arm64/kernel/setup.c @@ -446,7 +446,8 @@ void __init setup_arch(char **cmdline_p) efi_idmap_init(); early_ioremap_reset(); - unflatten_device_tree(); + if (acpi_disabled) + unflatten_device_tree(); psci_init(); -- 1.9.1
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