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# SPDX-License-Identifier: GPL-2.0+
# Copyright (c) 2018 Google, Inc
# Written by Simon Glass <sjg@chromium.org>
#
# Entry-type module for the 16-bit x86 start-up code for U-Boot TPL
#
from entry import Entry
from blob import Entry_blob
class Entry_x86_start16_tpl(Entry_blob):
"""x86 16-bit start-up code for TPL
Properties / Entry arguments:
- filename: Filename of tpl/u-boot-x86-16bit-tpl.bin (default
'tpl/u-boot-x86-16bit-tpl.bin')
x86 CPUs start up in 16-bit mode, even if they are 64-bit CPUs. This code
must be placed at a particular address. This entry holds that code. It is
typically placed at offset CONFIG_SYS_X86_START16. The code is responsible
for changing to 32-bit mode and starting TPL, which in turn jumps to SPL.
If TPL is not being used, the 'x86_start16_spl or 'x86_start16' entry types
may be used instead.
"""
def __init__(self, section, etype, node):
Entry_blob.__init__(self, section, etype, node)
def GetDefaultFilename(self):
return 'tpl/u-boot-x86-16bit-tpl.bin'
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