binman: Provide a way to specify the fdt-list directly

Sometimes multiple boards are built with binman and it is useful to
specify a different FDT list for each. At present this is not possible
without providing multiple values of the of-list entryarg (which is not
supported in the U-Boot build system).

Allow a fit,fdt-list-val string-list property to be used instead.

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

4 files changed, 85 insertions, 0 deletions

diff --git a/tools/binman/entries.rst b/tools/binman/entries.rst
index b71af801fd..b55f424620 100644
--- a/tools/binman/entries.rst
+++ b/tools/binman/entries.rst
@@ -615,6 +615,12 @@ The top-level 'fit' node supports the following special properties:
         `of-list` meaning that `-a of-list="dtb1 dtb2..."` should be passed
         to binman.
 
+    fit,fdt-list-val
+        As an alternative to fit,fdt-list the list of device tree files
+        can be provided in this property as a string list, e.g.::
+
+            fit,fdt-list-val = "dtb1", "dtb2";
+
 Substitutions
 ~~~~~~~~~~~~~
 
diff --git a/tools/binman/etype/fit.py b/tools/binman/etype/fit.py
index c395706ece..ef4d066757 100644
--- a/tools/binman/etype/fit.py
+++ b/tools/binman/etype/fit.py
@@ -81,6 +81,12 @@ class Entry_fit(Entry_section):
             `of-list` meaning that `-a of-list="dtb1 dtb2..."` should be passed
             to binman.
 
+        fit,fdt-list-val
+            As an alternative to fit,fdt-list the list of device tree files
+            can be provided in this property as a string list, e.g.::
+
+                fit,fdt-list-val = "dtb1", "dtb2";
+
     Substitutions
     ~~~~~~~~~~~~~
 
@@ -361,6 +367,9 @@ class Entry_fit(Entry_section):
                 [EntryArg(self._fit_list_prop.value, str)])
             if fdts is not None:
                 self._fdts = fdts.split()
+        else:
+            self._fdts = fdt_util.GetStringList(self._node, 'fit,fdt-list-val')
+
         self._fit_default_dt = self.GetEntryArgsOrProps([EntryArg('default-dt',
                                                                   str)])[0]
 
diff --git a/tools/binman/ftest.py b/tools/binman/ftest.py
index db348de722..ed1940ed9f 100644
--- a/tools/binman/ftest.py
+++ b/tools/binman/ftest.py
@@ -6761,6 +6761,18 @@ fdt         fdtmap                Extract the devicetree blob from the fdtmap
         # Just check that the data appears in the file somewhere
         self.assertIn(U_BOOT_DATA, data)
 
+    def testFitFdtList(self):
+        """Test an image with an FIT with the fit,fdt-list-val option"""
+        entry_args = {
+            'default-dt': 'test-fdt2',
+        }
+        data = self._DoReadFileDtb(
+            '284_fit_fdt_list.dts',
+            entry_args=entry_args,
+            extra_indirs=[os.path.join(self._indir, TEST_FDT_SUBDIR)])[0]
+        self.assertEqual(U_BOOT_NODTB_DATA, data[-len(U_BOOT_NODTB_DATA):])
+        fit_data = data[len(U_BOOT_DATA):-len(U_BOOT_NODTB_DATA)]
+
 
 if __name__ == "__main__":
     unittest.main()
diff --git a/tools/binman/test/284_fit_fdt_list.dts b/tools/binman/test/284_fit_fdt_list.dts
new file mode 100644
index 0000000000..8885313f5b
--- /dev/null
+++ b/tools/binman/test/284_fit_fdt_list.dts
@@ -0,0 +1,58 @@
+// SPDX-License-Identifier: GPL-2.0+
+
+/dts-v1/;
+
+/ {
+	#address-cells = <1>;
+	#size-cells = <1>;
+
+	binman {
+		u-boot {
+		};
+		fit {
+			description = "test-desc";
+			#address-cells = <1>;
+			fit,fdt-list-val = "test-fdt1", "test-fdt2";
+
+			images {
+				kernel {
+					description = "Vanilla Linux kernel";
+					type = "kernel";
+					arch = "ppc";
+					os = "linux";
+					compression = "gzip";
+					load = <00000000>;
+					entry = <00000000>;
+					hash-1 {
+						algo = "crc32";
+					};
+					hash-2 {
+						algo = "sha1";
+					};
+					u-boot {
+					};
+				};
+				@fdt-SEQ {
+					description = "fdt-NAME.dtb";
+					type = "flat_dt";
+					compression = "none";
+					hash {
+						algo = "sha256";
+					};
+				};
+			};
+
+			configurations {
+				default = "@config-DEFAULT-SEQ";
+				@config-SEQ {
+					description = "conf-NAME.dtb";
+					firmware = "uboot";
+					loadables = "atf";
+					fdt = "fdt-SEQ";
+				};
+			};
+		};
+		u-boot-nodtb {
+		};
+	};
+};