ACPI : Use RSDT instead of XSDT by adding boot option of "acpi=rsdt"

[pandora-kernel.git] / drivers / acpi / tables / tbutils.c

diff --git a/drivers/acpi/tables/tbutils.c b/drivers/acpi/tables/tbutils.c
index 0cc92ef..da9f240 100644 (file)
--- a/drivers/acpi/tables/tbutils.c
+++ b/drivers/acpi/tables/tbutils.c
@@ -420,7 +420,8 @@ acpi_tb_parse_root_table(acpi_physical_address rsdp_address, u8 flags)
 
        /* Differentiate between RSDT and XSDT root tables */
 
-       if (rsdp->revision > 1 && rsdp->xsdt_physical_address) {
+       if (rsdp->revision > 1 && rsdp->xsdt_physical_address
+                       && !acpi_rsdt_forced) {
                /*
                 * Root table is an XSDT (64-bit physical addresses). We must use the
                 * XSDT if the revision is > 1 and the XSDT pointer is present, as per