diff options
| -rw-r--r-- | arch/x86/lib/acpi_table.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/x86/lib/acpi_table.c b/arch/x86/lib/acpi_table.c index da6014f..3eb1011 100644 --- a/arch/x86/lib/acpi_table.c +++ b/arch/x86/lib/acpi_table.c @@ -463,6 +463,10 @@ ulong write_acpi_tables(ulong start) debug("ACPI: done\n"); + /* Don't touch ACPI hardware on HW reduced platforms */ + if (fadt->flags & ACPI_FADT_HW_REDUCED_ACPI) + return current; + /* * Other than waiting for OSPM to request us to switch to ACPI mode, * do it by ourselves, since SMI will not be triggered. |