Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394...
[sfrench/cifs-2.6.git] / arch / i386 / mach-es7000 / es7000plat.c
index 3d0fc853516d196eb379149dd33c58ff236b9507..9be6ceabf042fc64f8108c43c711cc1f475f96b7 100644 (file)
@@ -160,51 +160,14 @@ parse_unisys_oem (char *oemptr)
 int __init
 find_unisys_acpi_oem_table(unsigned long *oem_addr)
 {
-       struct acpi_table_rsdp          *rsdp = NULL;
-       unsigned long                   rsdp_phys = 0;
-       struct acpi_table_header        *header = NULL;
-       int                             i;
-       struct acpi_table_sdt           sdt;
-
-       rsdp_phys = acpi_find_rsdp();
-       rsdp = __va(rsdp_phys);
-       if (rsdp->rsdt_address) {
-               struct acpi_table_rsdt  *mapped_rsdt = NULL;
-               sdt.pa = rsdp->rsdt_address;
-
-               header = (struct acpi_table_header *)
-                       __acpi_map_table(sdt.pa, sizeof(struct acpi_table_header));
-               if (!header)
-                       return -ENODEV;
-
-               sdt.count = (header->length - sizeof(struct acpi_table_header)) >> 3;
-               mapped_rsdt = (struct acpi_table_rsdt *)
-                       __acpi_map_table(sdt.pa, header->length);
-               if (!mapped_rsdt)
-                       return -ENODEV;
-
-               header = &mapped_rsdt->header;
-
-               for (i = 0; i < sdt.count; i++)
-                       sdt.entry[i].pa = (unsigned long) mapped_rsdt->entry[i];
-       };
-       for (i = 0; i < sdt.count; i++) {
-
-               header = (struct acpi_table_header *)
-                       __acpi_map_table(sdt.entry[i].pa,
-                               sizeof(struct acpi_table_header));
-               if (!header)
-                       continue;
-               if (!strncmp((char *) &header->signature, "OEM1", 4)) {
-                       if (!strncmp((char *) &header->oem_id, "UNISYS", 6)) {
-                               void *addr;
-                               struct oem_table *t;
-                               acpi_table_print(header, sdt.entry[i].pa);
-                               t = (struct oem_table *) __acpi_map_table(sdt.entry[i].pa, header->length);
-                               addr = (void *) __acpi_map_table(t->OEMTableAddr, t->OEMTableSize);
-                               *oem_addr = (unsigned long) addr;
-                               return 0;
-                       }
+       struct acpi_table_header *header = NULL;
+       int i = 0;
+       while (ACPI_SUCCESS(acpi_get_table("OEM1", i++, &header))) {
+               if (!memcmp((char *) &header->oem_id, "UNISYS", 6)) {
+                       struct oem_table *t = (struct oem_table *)header;
+                       *oem_addr = (unsigned long)__acpi_map_table(t->OEMTableAddr,
+                                                                   t->OEMTableSize);
+                       return 0;
                }
        }
        return -1;