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| author | Aleksey Makarov <aleksey.makarov@linaro.org> | 2016-09-27 23:54:14 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-09-28 17:46:57 +0200 |
| commit | 888125a712986fd0fab99d09f42b307de32d740c (patch) | |
| tree | 53e6c0d80dbb2aac0509dc7cfaa4d4d16d350e4a /arch/arm64/Kconfig | |
| parent | ad1696f6f09daacfdf2bf04bc83cd8f48d80e34a (diff) | |
| download | lwn-888125a712986fd0fab99d09f42b307de32d740c.tar.gz lwn-888125a712986fd0fab99d09f42b307de32d740c.zip | |
ARM64: ACPI: enable ACPI_SPCR_TABLE
SBBR mentions SPCR as a mandatory ACPI table. So enable it for ARM64
Earlycon should be set up as early as possible. ACPI boot tables are
mapped in arch/arm64/kernel/acpi.c:acpi_boot_table_init() that
is called from setup_arch() and that's where we parse SPCR.
So it has to be opted-in per-arch.
When ACPI_SPCR_TABLE is defined initialization of DT earlycon is
deferred until the DT/ACPI decision is done. Initialize DT earlycon
if ACPI is disabled.
Acked-by: Will Deacon <will.deacon@arm.com>
Acked-by: Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: Aleksey Makarov <aleksey.makarov@linaro.org>
Tested-by: Kefeng Wang <wangkefeng.wang@huawei.com>
Tested-by: Christopher Covington <cov@codeaurora.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'arch/arm64/Kconfig')
| -rw-r--r-- | arch/arm64/Kconfig | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig index bc3f00f586f1..11a2d36b27ef 100644 --- a/arch/arm64/Kconfig +++ b/arch/arm64/Kconfig @@ -4,6 +4,7 @@ config ARM64 select ACPI_GENERIC_GSI if ACPI select ACPI_REDUCED_HARDWARE_ONLY if ACPI select ACPI_MCFG if ACPI + select ACPI_SPCR_TABLE if ACPI select ARCH_HAS_DEVMEM_IS_ALLOWED select ARCH_HAS_ACPI_TABLE_UPGRADE if ACPI select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE |