| Alexandru Gagniuc | 88a3023 | 2013-06-04 23:37:56 -0500 | [diff] [blame] | 1 | /* |
| 2 | * This file is part of the coreboot project. |
| 3 | * |
| 4 | * Copyright (C) 2004 Tyan Computer |
| 5 | * (Written by Yinghai Lu <yhlu@tyan.com> for Tyan Computer) |
| 6 | * Copyright (C) 2007 Rudolf Marek <r.marek@assembler.cz> |
| 7 | * Copyright (C) 2009 One Laptop per Child, Association, Inc. |
| 8 | * Copyright (C) 2011-2012 Alexandru Gagniuc <mr.nuke.me@gmail.com> |
| 9 | * |
| 10 | * This program is free software; you can redistribute it and/or modify |
| 11 | * it under the terms of the GNU General Public License as published by |
| 12 | * the Free Software Foundation; version 2 of the License. |
| 13 | * |
| 14 | * This program is distributed in the hope that it will be useful, |
| 15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 17 | * GNU General Public License for more details. |
| 18 | * |
| 19 | * You should have received a copy of the GNU General Public License |
| 20 | * along with this program; if not, write to the Free Software |
| Patrick Georgi | b890a12 | 2015-03-26 15:17:45 +0100 | [diff] [blame] | 21 | * Foundation, Inc. |
| Alexandru Gagniuc | 88a3023 | 2013-06-04 23:37:56 -0500 | [diff] [blame] | 22 | */ |
| 23 | |
| 24 | /* As extracted from the manufacturer's ROM, the romstrap table looks like: |
| 25 | * .long 0x77886047 .long 0x00777777 |
| 26 | * .long 0x00000000 .long 0x00000000 |
| 27 | * .long 0x00888888 .long 0x00AA1111 |
| 28 | * .long 0x00000000 .long 0x00000000 |
| 29 | * |
| 30 | * The vendor BIOS then adjusts some of these settings very early on. Instead of |
| 31 | * adjusting those settings in code, we work them in the romstrap table. |
| 32 | * |
| 33 | */ |
| 34 | /* This file constructs the ROM strap table for VX900 */ |
| 35 | |
| 36 | .section ".romstrap", "a", @progbits |
| 37 | |
| 38 | .globl __romstrap_start |
| 39 | __romstrap_start: |
| 40 | tblpointer: |
| 41 | .long 0x77886047 |
| 42 | .long 0x00777777 |
| 43 | .long 0x00000000 |
| 44 | .long 0x00000000 |
| 45 | .long 0x00888888 |
| 46 | .long 0x00AA1111 |
| 47 | .long 0x00000000 |
| 48 | .long 0x00000000 |
| 49 | |
| 50 | /* |
| 51 | * The pointer to above table should be at 0xffffffd0, |
| 52 | * the table itself MUST be aligned to 128B it seems! |
| 53 | */ |
| 54 | rspointers: |
| 55 | .long tblpointer // It will be 0xffffffd0 |
| 56 | |
| 57 | .globl __romstrap_end |
| 58 | |
| 59 | __romstrap_end: |
| 60 | .previous |