binman: Add support for RISC-V OpenSBI fw_dynamic blob

Add an entry for RISC-V OpenSBI's 'fw_dynamic' firmware payload.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Rick Chen <rick@andestech.com>
Reviewed-by: Rick Chen <rick@andestech.com>

tools/binman/entries.rst

@@ -761,6 +761,19 @@ binman.
 
 
 
+Entry: opensbi: RISC-V OpenSBI fw_dynamic blob
+----------------------------------------------
+
+Properties / Entry arguments:
+    - opensbi-path: Filename of file to read into entry. This is typically
+        called fw_dynamic.bin
+
+This entry holds the run-time firmware, typically started by U-Boot SPL.
+See the U-Boot README for your architecture or board for how to use it. See
+https://github.com/riscv/opensbi for more information about OpenSBI.
+
+
+
 Entry: powerpc-mpc85xx-bootpg-resetvec: PowerPC mpc85xx bootpg + resetvec code for U-Boot
 -----------------------------------------------------------------------------------------
 

tools/binman/etype/opensbi.py

@@ -0,0 +1,23 @@
+# SPDX-License-Identifier: GPL-2.0+
+#
+# Copyright (C) 2021, Bin Meng <bmeng.cn@gmail.com>
+#
+# Entry-type module for RISC-V OpenSBI binary blob
+#
+
+from binman.etype.blob_named_by_arg import Entry_blob_named_by_arg
+
+class Entry_opensbi(Entry_blob_named_by_arg):
+    """RISC-V OpenSBI fw_dynamic blob
+
+    Properties / Entry arguments:
+        - opensbi-path: Filename of file to read into entry. This is typically
+            called fw_dynamic.bin
+
+    This entry holds the run-time firmware, typically started by U-Boot SPL.
+    See the U-Boot README for your architecture or board for how to use it. See
+    https://github.com/riscv/opensbi for more information about OpenSBI.
+    """
+    def __init__(self, section, etype, node):
+        super().__init__(section, etype, node, 'opensbi')
+        self.external = True

tools/binman/ftest.py

@@ -76,6 +76,7 @@ FSP_M_DATA            = b'fsp_m'
 FSP_S_DATA            = b'fsp_s'
 FSP_T_DATA            = b'fsp_t'
 ATF_BL31_DATA         = b'bl31'
+OPENSBI_DATA          = b'opensbi'
 SCP_DATA              = b'scp'
 TEST_FDT1_DATA        = b'fdt1'
 TEST_FDT2_DATA        = b'test-fdt2'
@@ -178,6 +179,7 @@ class TestFunctional(unittest.TestCase):
         TestFunctional._MakeInputFile('compress', COMPRESS_DATA)
         TestFunctional._MakeInputFile('compress_big', COMPRESS_DATA_BIG)
         TestFunctional._MakeInputFile('bl31.bin', ATF_BL31_DATA)
+        TestFunctional._MakeInputFile('fw_dynamic.bin', OPENSBI_DATA)
         TestFunctional._MakeInputFile('scp.bin', SCP_DATA)
 
         # Add a few .dtb files for testing
@@ -4535,5 +4537,10 @@ class TestFunctional(unittest.TestCase):
         expected += tools.GetBytes(0, 88 - len(expected)) + U_BOOT_NODTB_DATA
         self.assertEqual(expected, data)
 
+    def testPackOpenSBI(self):
+        """Test that an image with an OpenSBI binary can be created"""
+        data = self._DoReadFile('201_opensbi.dts')
+        self.assertEqual(OPENSBI_DATA, data[:len(OPENSBI_DATA)])
+
 if __name__ == "__main__":
     unittest.main()

tools/binman/test/201_opensbi.dts

@@ -0,0 +1,14 @@
+// SPDX-License-Identifier: GPL-2.0+
+
+/dts-v1/;
+
+/ {
+	#address-cells = <1>;
+	#size-cells = <1>;
+
+	binman {
+		opensbi {
+			filename = "fw_dynamic.bin";
+		};
+	};
+};