x86 intel: Add Firmware Interface Table support

Haswell CPUs require a FIT table in the firmware. This commit
adds rudimentary support for a FIT table. The number of entries
in the table is based on a configuration option. The code only
generates a type 0 entry. A follow-on tool will need to be developed
to populate the FIT entries as well as checksumming the table.

Verified image has a FIT pointer and table when option is selected.

Change-Id: I3a314016a09a1cc26bf1fb5d17aa50853d2ef4f8
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/2642
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>

1 files changed, 6 insertions, 0 deletions

diff --git a/src/cpu/intel/fit/fit.lds b/src/cpu/intel/fit/fit.lds
new file mode 100644
index 0000000000..9ccfe82c5f
--- /dev/null
+++ b/src/cpu/intel/fit/fit.lds
@@ -0,0 +1,6 @@
+SECTIONS {
+	. = 0xffffffc0;
+	.fit_pointer (.): {
+		*(.fit_pointer)
+	}
+}