Commit 2b846e10 authored by Simon Glass's avatar Simon Glass
Browse files

binman: Add support for u-boot-tpl-nodtb



Allow this entry type to be placed in an image. This is the TPL binary,
without a devicetree appended.
Signed-off-by: Simon Glass's avatarSimon Glass <sjg@chromium.org>
parent 49ae19bf
......@@ -1089,6 +1089,29 @@ be relocated to any address for execution.
Entry: u-boot-tpl-nodtb: TPL binary without device tree appended
----------------------------------------------------------------
Properties / Entry arguments:
- filename: Filename to include (default 'tpl/u-boot-tpl-nodtb.bin')
This is the U-Boot TPL binary, It does not include a device tree blob at
the end of it so may not be able to work without it, assuming TPL needs
a device tree to operate on your platform. You can add a u-boot-tpl-dtb
entry after this one, or use a u-boot-tpl entry instead (which contains
both TPL and the device tree).
TPL can access binman symbols at runtime. See:
'Access to binman entry offsets at run time (symbols)'
in the binman README for more information.
The ELF file 'tpl/u-boot-tpl' must also be available for this to work, since
binman uses that to look up symbols to write into the TPL binary.
Entry: u-boot-tpl-with-ucode-ptr: U-Boot TPL with embedded microcode pointer
----------------------------------------------------------------------------
......
# SPDX-License-Identifier: GPL-2.0+
# Copyright 2021 Google LLC
# Written by Simon Glass <sjg@chromium.org>
#
# Entry-type module for 'u-boot-tpl-nodtb.bin'
#
from binman import elf
from binman.entry import Entry
from binman.etype.blob import Entry_blob
class Entry_u_boot_tpl_nodtb(Entry_blob):
"""TPL binary without device tree appended
Properties / Entry arguments:
- filename: Filename to include (default 'tpl/u-boot-tpl-nodtb.bin')
This is the U-Boot TPL binary, It does not include a device tree blob at
the end of it so may not be able to work without it, assuming TPL needs
a device tree to operate on your platform. You can add a u-boot-tpl-dtb
entry after this one, or use a u-boot-tpl entry instead (which contains
both TPL and the device tree).
TPL can access binman symbols at runtime. See:
'Access to binman entry offsets at run time (symbols)'
in the binman README for more information.
The ELF file 'tpl/u-boot-tpl' must also be available for this to work, since
binman uses that to look up symbols to write into the TPL binary.
"""
def __init__(self, section, etype, node):
super().__init__(section, etype, node)
self.elf_fname = 'tpl/u-boot-tpl'
def GetDefaultFilename(self):
return 'tpl/u-boot-tpl-nodtb.bin'
def WriteSymbols(self, section):
elf.LookupAndWriteSymbols(self.elf_fname, self, section.GetImage())
......@@ -4256,6 +4256,12 @@ class TestFunctional(unittest.TestCase):
self.assertEquals(U_BOOT_DATA, u_boot.ReadData())
def testTplNoDtb(self):
"""Test that an image with tpl/u-boot-tpl-nodtb.bin can be created"""
data = self._DoReadFile('192_u_boot_tpl_nodtb.dts')
self.assertEqual(U_BOOT_TPL_NODTB_DATA,
data[:len(U_BOOT_TPL_NODTB_DATA)])
if __name__ == "__main__":
unittest.main()
// SPDX-License-Identifier: GPL-2.0+
/dts-v1/;
/ {
#address-cells = <1>;
#size-cells = <1>;
binman {
u-boot-tpl-nodtb {
};
};
};
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