binman: Support x86 microcode in TPL

When TPL is used on x86 we may want to program the microcode (at least for
the first CPU) early in boot. Add support for this by refactoring the
existing code to be more generic.

Signed-off-by: Simon Glass <sjg@chromium.org>

1 files changed, 25 insertions, 0 deletions

diff --git a/tools/binman/etype/u_boot_tpl_dtb_with_ucode.py b/tools/binman/etype/u_boot_tpl_dtb_with_ucode.py
new file mode 100644
index 00000000000..71e04fcd44f
--- /dev/null
+++ b/tools/binman/etype/u_boot_tpl_dtb_with_ucode.py
@@ -0,0 +1,25 @@
+# SPDX-License-Identifier: GPL-2.0+
+# Copyright (c) 2016 Google, Inc
+# Written by Simon Glass <sjg@chromium.org>
+#
+# Entry-type module for U-Boot device tree with the microcode removed
+#
+
+import control
+from entry import Entry
+from u_boot_dtb_with_ucode import Entry_u_boot_dtb_with_ucode
+import tools
+
+class Entry_u_boot_tpl_dtb_with_ucode(Entry_u_boot_dtb_with_ucode):
+    """U-Boot TPL with embedded microcode pointer
+
+    This is used when TPL must set up the microcode for U-Boot.
+
+    See Entry_u_boot_ucode for full details of the entries involved in this
+    process.
+    """
+    def __init__(self, section, etype, node):
+        Entry_u_boot_dtb_with_ucode.__init__(self, section, etype, node)
+
+    def GetDefaultFilename(self):
+        return 'tpl/u-boot-tpl.dtb'