| From | Hanjun Guo <> | Subject | [PATCH v3 05/17] ARM64 / ACPI: If we chose to boot from acpi then disable FDT | Date | Mon, 1 Sep 2014 22:57:43 +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=off has not been passed. Then do not unflat devicetree effectively disabling further hardware probing from DT.
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 fb7cc0e..ba181ba 100644 --- a/arch/arm64/kernel/setup.c +++ b/arch/arm64/kernel/setup.c @@ -395,7 +395,8 @@ void __init setup_arch(char **cmdline_p) efi_idmap_init(); cpu_logical_map(0) = read_cpuid_mpidr() & MPIDR_HWID_BITMASK; - unflatten_device_tree(); + if (acpi_disabled) + unflatten_device_tree(); psci_init(); -- 1.7.9.5
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