mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-09-17 10:13:21 +09:00
16287933a8
At present binman sets the python path on startup so that it can access the libraries it needs. If we convert to use absolute imports this is not necessary. Move binman to use absolute imports. This enables removable of the path adjusting in Entry also. Signed-off-by: Simon Glass <sjg@chromium.org>
33 lines
1.2 KiB
Python
33 lines
1.2 KiB
Python
# 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 binman.entry import Entry
|
|
from binman.etype.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-start16-tpl.bin (default
|
|
'tpl/u-boot-x86-start16-tpl.bin')
|
|
|
|
x86 CPUs start up in 16-bit mode, even if they are 32-bit CPUs. This code
|
|
must be placed in the top 64KB of the ROM. The reset code jumps to it. 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 jumping to U-Boot's entry point, which requires 32-bit mode (for 32-bit
|
|
U-Boot).
|
|
|
|
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-start16-tpl.bin'
|