[PATCH] ES7000 platform update (i386)

This is subarch update for ES7000.  I've modified platform check code and
removed unnecessary OEM table parsing for newer systems that don't use OEM
information during boot.  Parsing the table in fact is causing problems,
and the platform doesn't get recognized.  The patch only affects the ES7000
subach.

Signed-off-by: <Natalie.Protasevich@unisys.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 24 insertions, 6 deletions

diff --git a/include/asm-i386/mach-es7000/mach_mpparse.h b/include/asm-i386/mach-es7000/mach_mpparse.h
index 85809e0898d7..28a84f6185a7 100644
--- a/include/asm-i386/mach-es7000/mach_mpparse.h
+++ b/include/asm-i386/mach-es7000/mach_mpparse.h
@@ -1,6 +1,8 @@
 #ifndef __ASM_MACH_MPPARSE_H
 #define __ASM_MACH_MPPARSE_H
 
+#include <linux/acpi.h>
+
 static inline void mpc_oem_bus_info(struct mpc_config_bus *m, char *name, 
                                 struct mpc_config_translation *translation)
 {
@@ -12,8 +14,9 @@ static inline void mpc_oem_pci_bus(struct mpc_config_bus *m,
 {
 }
 
-extern int parse_unisys_oem (char *oemptr, int oem_entries);
-extern int find_unisys_acpi_oem_table(unsigned long *oem_addr, int *length);
+extern int parse_unisys_oem (char *oemptr);
+extern int find_unisys_acpi_oem_table(unsigned long *oem_addr);
+extern void setup_unisys();
 
 static inline int mps_oem_check(struct mp_config_table *mpc, char *oem,
                 char *productid)
@@ -22,18 +25,33 @@ static inline int mps_oem_check(struct mp_config_table *mpc, char *oem,
                 struct mp_config_oemtable *oem_table = 
                         (struct mp_config_oemtable *)mpc->mpc_oemptr;
                 if (!strncmp(oem, "UNISYS", 6))
-                        return parse_unisys_oem((char *)oem_table, oem_table->oem_length);
+                        return parse_unisys_oem((char *)oem_table);
         }
         return 0;
 }
 
+static inline int es7000_check_dsdt()
+{
+        struct acpi_table_header *header = NULL;
+        if(!acpi_get_table_header_early(ACPI_DSDT, &header))
+                acpi_table_print(header, 0);
+        if (!strncmp(header->oem_id, "UNISYS", 6))
+                return 1;
+        return 0;
+}
+
 /* Hook from generic ACPI tables.c */
 static inline int acpi_madt_oem_check(char *oem_id, char *oem_table_id)
 {
         unsigned long oem_addr; 
-        int oem_entries;
-        if (!find_unisys_acpi_oem_table(&oem_addr, &oem_entries))
-                return parse_unisys_oem((char *)oem_addr, oem_entries);
+        if (!find_unisys_acpi_oem_table(&oem_addr)) {
+                if (es7000_check_dsdt())
+                        return parse_unisys_oem((char *)oem_addr);
+                else {
+                        setup_unisys();
+                        return 1;
+                }
+        }
         return 0;
 }