1 files changed, 44 insertions, 0 deletions
diff --git a/src/drivers/intel/fsp1_1/temp_ram_exit.c b/src/drivers/intel/fsp1_1/temp_ram_exit.c
new file mode 100644
index 0000000000..c1535e0bc0
--- /dev/null
+++ b/src/drivers/intel/fsp1_1/temp_ram_exit.c
@@ -0,0 +1,44 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2015 Intel Corp.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#include <console/console.h>
+#include <fsp/util.h>
+
+asmlinkage void chipset_teardown_car_main(void)
+{
+	FSP_INFO_HEADER *fih;
+	uint32_t status;
+	FSP_TEMP_RAM_EXIT temp_ram_exit;
+	struct prog fsp = PROG_INIT(PROG_REFCODE, "fsp.bin");
+
+	if (prog_locate(&fsp)) {
+		die("Unable to locate fsp.bin\n");
+	} else {
+		/* This leaks a mapping which this code assumes is benign as
+		 * the flash is memory mapped CPU's address space. */
+
+		/* FIXME: the implementation of find_fsp is utter garbage
+		   as it casts error values to FSP_INFO_HEADER pointers.
+		   Checking for return values can only be done sanely once
+		   that is fixed. */
+		fih = find_fsp((uintptr_t)rdev_mmap_full(prog_rdev(&fsp)));
+	}
+
+	temp_ram_exit = (FSP_TEMP_RAM_EXIT)(fih->TempRamExitEntryOffset +
+						fih->ImageBase);
+	printk(BIOS_DEBUG, "Calling TempRamExit: %p\n", temp_ram_exit);
+	status = temp_ram_exit(NULL);
+
+	if (status != FSP_SUCCESS) {
+		printk(BIOS_CRIT, "TempRamExit returned 0x%08x\n", status);
+		die("TempRamExit returned an error!\n");
+	}
+}