x86: Add early platform detection
Platforms like Moorestown require early setup and want to avoid the
call to reserve_ebda_region. The x86_init override is too late when
the MRST detection happens in setup_arch. Move the default i386
x86_init overrides and the call to reserve_ebda_region into a separate
function which is called as the default of a switch case depending on
the hardware_subarch id in boot params. This allows us to add a case
for MRST and let MRST have its own early setup function.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
diff --git a/arch/x86/include/asm/x86_init.h b/arch/x86/include/asm/x86_init.h
index 20df518..b6c8942 100644
--- a/arch/x86/include/asm/x86_init.h
+++ b/arch/x86/include/asm/x86_init.h
@@ -2,6 +2,7 @@
#define _ASM_X86_PLATFORM_H
#include <asm/pgtable_types.h>
+#include <asm/bootparam.h>
struct mpc_bus;
struct mpc_cpu;
@@ -34,14 +35,12 @@
* @probe_roms: probe BIOS roms
* @reserve_resources: reserve the standard resources for the
* platform
- * @reserve_ebda_region: reserve the extended bios data area
* @memory_setup: platform specific memory setup
*
*/
struct x86_init_resources {
void (*probe_roms)(void);
void (*reserve_resources)(void);
- void (*reserve_ebda_region)(void);
char *(*memory_setup)(void);
};