diff options
| author | Alexandru Gagniuc <mr.nuke.me@gmail.com> | 2015-10-05 08:00:51 -0700 |
|---|---|---|
| committer | Martin Roth <martinroth@google.com> | 2015-12-30 18:34:08 +0100 |
| commit | 8a13743569a8d1ac61b8a52d2dab621ff4041de2 (patch) | |
| tree | 4ee4ef61e8aab9d8ac72ad17390ae8c7c35350cb /src/northbridge/via/vx900/romstrap.S | |
| parent | acc94a73bab2ede4e876e58c2de53ee0551f703c (diff) | |
x86 chipsets: Link non-code flow CHIPSET_BOOTBLOCK_INCLUDE files
Non-code flow assembly stubs do not have to be included in
bootblock.S, now that we have more freedom in bootblock linking.
Rather than bringing these stubs to the config system, just link them
in the bootblock.
Note that we cannot fully remove CHIPSET_BOOTBLOCK_INCLUDE at this
point, as some intel SOCs use this stub for code flow.
objdump -h build/cbfs/fallback/bootblock.debug on a few random boards
confirms that the appropriate sections are still included in the
final binary.
Change-Id: Id3f9ece14e399c1cc83090f407780c4a05a076f0
Signed-off-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Reviewed-on: https://review.coreboot.org/11856
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martinroth@google.com>
Diffstat (limited to 'src/northbridge/via/vx900/romstrap.S')
| -rw-r--r-- | src/northbridge/via/vx900/romstrap.S | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/src/northbridge/via/vx900/romstrap.S b/src/northbridge/via/vx900/romstrap.S new file mode 100644 index 0000000000..26c1ee694a --- /dev/null +++ b/src/northbridge/via/vx900/romstrap.S @@ -0,0 +1,56 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2004 Tyan Computer + * (Written by Yinghai Lu <yhlu@tyan.com> for Tyan Computer) + * Copyright (C) 2007 Rudolf Marek <r.marek@assembler.cz> + * Copyright (C) 2009 One Laptop per Child, Association, Inc. + * Copyright (C) 2011-2012 Alexandru Gagniuc <mr.nuke.me@gmail.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +/* As extracted from the manufacturer's ROM, the romstrap table looks like: + * .long 0x77886047 .long 0x00777777 + * .long 0x00000000 .long 0x00000000 + * .long 0x00888888 .long 0x00AA1111 + * .long 0x00000000 .long 0x00000000 + * + * The vendor BIOS then adjusts some of these settings very early on. Instead of + * adjusting those settings in code, we work them in the romstrap table. + * + */ +/* This file constructs the ROM strap table for VX900 */ + + .section ".romstrap", "a", @progbits + + .globl __romstrap_start +__romstrap_start: +tblpointer: + .long 0x77886047 + .long 0x00777777 + .long 0x00000000 + .long 0x00000000 + .long 0x00888888 + .long 0x00AA1111 + .long 0x00000000 + .long 0x00000000 + +/* + * The pointer to above table should be at 0xffffffd0, + * the table itself MUST be aligned to 128B it seems! + */ +rspointers: + .long tblpointer // It will be 0xffffffd0 + + .globl __romstrap_end + +__romstrap_end: +.previous |