binman: Move state logic into the state module
Rather than reaching into this module from control, move the code that
needs this info into state.
Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/tools/binman/state.py b/tools/binman/state.py
index 6bc24dd..9583b3f 100644
--- a/tools/binman/state.py
+++ b/tools/binman/state.py
@@ -18,6 +18,15 @@
# Arguments passed to binman to provide arguments to entries
entry_args = {}
+# Set of all device tree files references by images
+fdt_set = Set()
+
+# Same as above, but excluding the main one
+fdt_subset = Set()
+
+# The DTB which contains the full image information
+main_dtb = None
+
def GetFdt(fname):
"""Get the Fdt object for a particular device-tree filename
@@ -75,3 +84,37 @@
String value of argument
"""
return entry_args.get(name)
+
+def Prepare(dtb):
+ """Get device tree files ready for use
+
+ This sets up a set of device tree files that can be retrieved by GetFdts().
+ At present there is only one, that for U-Boot proper.
+
+ Args:
+ dtb: Main dtb
+ """
+ global fdt_set, fdt_subset, fdt_files, main_dtb
+ # Import these here in case libfdt.py is not available, in which case
+ # the above help option still works.
+ import fdt
+ import fdt_util
+
+ # If we are updating the DTBs we need to put these updated versions
+ # where Entry_blob_dtb can find them. We can ignore 'u-boot.dtb'
+ # since it is assumed to be the one passed in with options.dt, and
+ # was handled just above.
+ main_dtb = dtb
+ fdt_files.clear()
+ fdt_files['u-boot.dtb'] = dtb
+ fdt_set = Set()
+ fdt_subset = Set()
+
+def GetFdts():
+ """Yield all device tree files being used by binman
+
+ Yields:
+ Device trees being used (U-Boot proper, SPL, TPL)
+ """
+ yield main_dtb
+