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gerrit.devboardsforandroid.linaro.org / platform / external / u-boot / 4387cf1ae1935a4630165de8b2520d98ed9f14b8 / . / board / prodrive / alpr / init.S
blob: d9961dd18636a9a86425888883e576e2e3092747 [file] [log] [blame]
Stefan Roese899620c2006-08-15 14:22:35 +0200[diff] [blame]1/*
Stefan Roese5bc528f2006-10-07 11:35:25 +0200[diff] [blame]2 * (C) Copyright 2006
3 * Stefan Roese, DENX Software Engineering, sr@denx.de.
4 *
5 * See file CREDITS for list of people who contributed to this
6 * project.
7 *
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License as
10 * published by the Free Software Foundation; either version 2 of
11 * the License, or (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
21 * MA 02111-1307 USA
22 */
Stefan Roese899620c2006-08-15 14:22:35 +0200[diff] [blame]23
Wolfgang Denk25ddd1f2010-10-26 14:34:52 +0200[diff] [blame]24#include <asm-offsets.h>
Stefan Roese899620c2006-08-15 14:22:35 +0200[diff] [blame]25#include <ppc_asm.tmpl>
Stefan Roesecf6eb6d2010-04-14 13:57:18 +0200[diff] [blame]26#include <asm/mmu.h>
Stefan Roese899620c2006-08-15 14:22:35 +0200[diff] [blame]27#include <config.h>
Stefan Roese550650d2010-09-20 16:05:31 +0200[diff] [blame]28#include <asm/ppc4xx.h>
Stefan Roese899620c2006-08-15 14:22:35 +0200[diff] [blame]29
Stefan Roese899620c2006-08-15 14:22:35 +0200[diff] [blame]30/**************************************************************************
31 * TLB TABLE
32 *
33 * This table is used by the cpu boot code to setup the initial tlb
34 * entries. Rather than make broad assumptions in the cpu source tree,
35 * this table lets each board set things up however they like.
36 *
37 * Pointer to the table is returned in r1
38 *
39 *************************************************************************/
40
Stefan Roese5bc528f2006-10-07 11:35:25 +0200[diff] [blame]41 .section .bootpg,"ax"
42 .globl tlbtab
Stefan Roese899620c2006-08-15 14:22:35 +0200[diff] [blame]43
44tlbtab:
Stefan Roese5bc528f2006-10-07 11:35:25 +0200[diff] [blame]45 tlbtab_start
Stefan Roesecf6eb6d2010-04-14 13:57:18 +0200[diff] [blame]46 tlbentry(0xff000000, SZ_16M, 0xff000000, 1, AC_RWX | SA_IG )
47 tlbentry(CONFIG_SYS_PERIPHERAL_BASE, SZ_256M, 0x40000000, 1, AC_RW | SA_IG)
48 tlbentry(CONFIG_SYS_ISRAM_BASE, SZ_4K, 0x80000000, 0, AC_RWX)
49 tlbentry(CONFIG_SYS_ISRAM_BASE + 0x1000, SZ_4K, 0x80001000, 0, AC_RWX)
Pieter Voorthuijsen511e4f92008-03-17 09:27:56 +0100[diff] [blame]50#ifdef CONFIG_4xx_DCACHE
Stefan Roesecf6eb6d2010-04-14 13:57:18 +0200[diff] [blame]51 tlbentry(CONFIG_SYS_SDRAM_BASE, SZ_256M, 0x00000000, 0, AC_RWX | SA_G)
Pieter Voorthuijsen511e4f92008-03-17 09:27:56 +0100[diff] [blame]52#else
Stefan Roesecf6eb6d2010-04-14 13:57:18 +0200[diff] [blame]53 tlbentry(CONFIG_SYS_SDRAM_BASE, SZ_256M, 0x00000000, 0, AC_RWX | SA_IG)
Pieter Voorthuijsen511e4f92008-03-17 09:27:56 +0100[diff] [blame]54#endif
55
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200[diff] [blame]56#ifdef CONFIG_SYS_INIT_RAM_DCACHE
Pieter Voorthuijsen511e4f92008-03-17 09:27:56 +0100[diff] [blame]57 /* TLB-entry for init-ram in dcache (SA_I must be turned off!) */
Stefan Roesecf6eb6d2010-04-14 13:57:18 +0200[diff] [blame]58 tlbentry(CONFIG_SYS_INIT_RAM_ADDR, SZ_64K, CONFIG_SYS_INIT_RAM_ADDR, 0, AC_RWX | SA_G)
Pieter Voorthuijsen511e4f92008-03-17 09:27:56 +0100[diff] [blame]59#endif
Stefan Roesecf6eb6d2010-04-14 13:57:18 +0200[diff] [blame]60 tlbentry(CONFIG_SYS_PCI_BASE, SZ_256M, 0x00000000, 2, AC_RW | SA_IG)
Stefan Roese899620c2006-08-15 14:22:35 +0200[diff] [blame]61
Stefan Roese5bc528f2006-10-07 11:35:25 +0200[diff] [blame]62 /* PCI */
Stefan Roesecf6eb6d2010-04-14 13:57:18 +0200[diff] [blame]63 tlbentry(CONFIG_SYS_PCI_MEMBASE, SZ_256M, CONFIG_SYS_PCI_MEMBASE, 3, AC_RW | SA_IG)
64 tlbentry(CONFIG_SYS_PCI_MEMBASE1, SZ_256M, CONFIG_SYS_PCI_MEMBASE1, 3, AC_RW | SA_IG)
65 tlbentry(CONFIG_SYS_PCI_MEMBASE2, SZ_256M, CONFIG_SYS_PCI_MEMBASE2, 3, AC_RW | SA_IG)
Stefan Roese5bc528f2006-10-07 11:35:25 +0200[diff] [blame]66
67 /* NAND */
Stefan Roesecf6eb6d2010-04-14 13:57:18 +0200[diff] [blame]68 tlbentry(CONFIG_SYS_NAND_BASE, SZ_4K, CONFIG_SYS_NAND_BASE, 1, AC_RWX | SA_IG)
Stefan Roese5bc528f2006-10-07 11:35:25 +0200[diff] [blame]69 tlbtab_end