| Message ID | 1458643595-14719-5-git-send-email-aleksey.makarov@linaro.org |
|---|---|
| State | New |
| Headers | show |
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig index 07b6a16..c77b4b2 100644 --- a/arch/arm64/Kconfig +++ b/arch/arm64/Kconfig @@ -3,6 +3,7 @@ config ARM64 select ACPI_CCA_REQUIRED if ACPI select ACPI_GENERIC_GSI if ACPI select ACPI_REDUCED_HARDWARE_ONLY if ACPI + select ACPI_SPCR_TABLE if ACPI select ARCH_HAS_DEVMEM_IS_ALLOWED select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE select ARCH_HAS_ELF_RANDOMIZE diff --git a/arch/arm64/kernel/acpi.c b/arch/arm64/kernel/acpi.c index d1ce8e2..36d6f70 100644 --- a/arch/arm64/kernel/acpi.c +++ b/arch/arm64/kernel/acpi.c @@ -208,6 +208,8 @@ void __init acpi_boot_table_init(void) pr_err("Failed to init ACPI tables\n"); if (!param_acpi_force) disable_acpi(); + } else { + parse_spcr(); } }
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() called from setup_arch() and that's where we parse SPCR. So it has to be opted-in per-arch. Signed-off-by: Aleksey Makarov <aleksey.makarov@linaro.org> --- arch/arm64/Kconfig | 1 + arch/arm64/kernel/acpi.c | 2 ++ 2 files changed, 3 insertions(+) -- 2.7.4 -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html