On Tue, Mar 24, 2015 at 10:02:51PM +0800, Hanjun Guo wrote:
From: Al Stone al.stone@linaro.org
ACPI reduced hardware mode is disabled by default, but ARM64 can only run properly in ACPI hardware reduced mode, so select ACPI_REDUCED_HARDWARE_ONLY if ACPI is enabled on ARM64.
If the firmware is not using hardware reduced ACPI mode, we will disable ACPI to avoid nightmare such as accessing some registers which are not available on ARM64.
CC: Catalin Marinas catalin.marinas@arm.com CC: Will Deacon will.deacon@arm.com Reviewed-by: Grant Likely grant.likely@linaro.org 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 Tested-by: Robert Richter rrichter@cavium.com Acked-by: Robert Richter rrichter@cavium.com Signed-off-by: Al Stone al.stone@linaro.org Signed-off-by: Hanjun Guo hanjun.guo@linaro.org
Acked-by: Catalin Marinas catalin.marinas@arm.com