]> git.sur5r.net Git - u-boot/commitdiff
x86: Issue SMI to finalize Coreboot in final stage
authorDuncan Laurie <dlaurie@chromium.org>
Sat, 3 Nov 2012 11:41:35 +0000 (11:41 +0000)
committerSimon Glass <sjg@chromium.org>
Thu, 6 Dec 2012 22:30:43 +0000 (14:30 -0800)
This will write magic value to APMC command port which
will trigger an SMI and cause coreboot to lock down
the ME, chipset, and CPU.

Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Signed-off-by: Simon Glass <sjg@chromium.org>
arch/x86/cpu/coreboot/coreboot.c

index f73977f219394af9a04e0b347ecdde38f63b4501..1c8a007d161be4f22a33632dcd65cd8f7a9a5240 100644 (file)
@@ -118,5 +118,9 @@ int board_final_cleanup(void)
                enable_caches();
        }
 
+       /* Issue SMI to Coreboot to lock down ME and registers */
+       printf("Finalizing Coreboot\n");
+       outb(0xcb, 0xb2);
+
        return 0;
 }