blob: e06874c6ee1f5a8e8344847ccf25c4604a47a3f9 [file] [log] [blame]
Paul Gortmaker91e25762007-01-16 11:38:14 -05001/*
2 * pci.c -- WindRiver SBC8349 PCI board support.
3 * Copyright (c) 2006 Wind River Systems, Inc.
Kim Phillips9993e192009-07-18 18:42:13 -05004 * Copyright (C) 2006-2009 Freescale Semiconductor, Inc.
Paul Gortmaker91e25762007-01-16 11:38:14 -05005 *
6 * Based on MPC8349 PCI support but w/o PIB related code.
7 *
8 * See file CREDITS for list of people who contributed to this
9 * project.
10 *
11 * This program is free software; you can redistribute it and/or
12 * modify it under the terms of the GNU General Public License as
13 * published by the Free Software Foundation; either version 2 of
14 * the License, or (at your option) any later version.
15 *
16 * This program is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 * GNU General Public License for more details.
20 *
21 * You should have received a copy of the GNU General Public License
22 * along with this program; if not, write to the Free Software
23 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
24 * MA 02111-1307 USA
25 *
26 */
27
28#include <asm/mmu.h>
Kim Phillips9993e192009-07-18 18:42:13 -050029#include <asm/io.h>
Paul Gortmaker91e25762007-01-16 11:38:14 -050030#include <common.h>
Kim Phillips9993e192009-07-18 18:42:13 -050031#include <mpc83xx.h>
Paul Gortmaker91e25762007-01-16 11:38:14 -050032#include <pci.h>
Paul Gortmaker91e25762007-01-16 11:38:14 -050033#include <i2c.h>
Kim Phillips9993e192009-07-18 18:42:13 -050034#include <asm/fsl_i2c.h>
Paul Gortmaker91e25762007-01-16 11:38:14 -050035
36DECLARE_GLOBAL_DATA_PTR;
37
Kim Phillips9993e192009-07-18 18:42:13 -050038static struct pci_region pci1_regions[] = {
39 {
40 bus_start: CONFIG_SYS_PCI1_MEM_BASE,
41 phys_start: CONFIG_SYS_PCI1_MEM_PHYS,
42 size: CONFIG_SYS_PCI1_MEM_SIZE,
43 flags: PCI_REGION_MEM | PCI_REGION_PREFETCH
Paul Gortmaker91e25762007-01-16 11:38:14 -050044 },
Kim Phillips9993e192009-07-18 18:42:13 -050045 {
46 bus_start: CONFIG_SYS_PCI1_IO_BASE,
47 phys_start: CONFIG_SYS_PCI1_IO_PHYS,
48 size: CONFIG_SYS_PCI1_IO_SIZE,
49 flags: PCI_REGION_IO
50 },
51 {
52 bus_start: CONFIG_SYS_PCI1_MMIO_BASE,
53 phys_start: CONFIG_SYS_PCI1_MMIO_PHYS,
54 size: CONFIG_SYS_PCI1_MMIO_SIZE,
55 flags: PCI_REGION_MEM
56 },
Paul Gortmaker91e25762007-01-16 11:38:14 -050057};
58
Kim Phillips9993e192009-07-18 18:42:13 -050059/*
Paul Gortmaker91e25762007-01-16 11:38:14 -050060 * pci_init_board()
61 *
62 * NOTICE: PCI2 is not supported. There is only one
63 * physical PCI slot on the board.
64 *
65 */
66void
67pci_init_board(void)
68{
Kim Phillips9993e192009-07-18 18:42:13 -050069 volatile immap_t *immr = (volatile immap_t *)CONFIG_SYS_IMMR;
70 volatile clk83xx_t *clk = (volatile clk83xx_t *)&immr->clk;
71 volatile law83xx_t *pci_law = immr->sysconf.pcilaw;
72 struct pci_region *reg[] = { pci1_regions };
Paul Gortmaker91e25762007-01-16 11:38:14 -050073
Kim Phillips9993e192009-07-18 18:42:13 -050074 /* Enable all 8 PCI_CLK_OUTPUTS */
Paul Gortmaker91e25762007-01-16 11:38:14 -050075 clk->occr = 0xff000000;
76 udelay(2000);
77
Kim Phillips9993e192009-07-18 18:42:13 -050078 /* Configure PCI Local Access Windows */
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +020079 pci_law[0].bar = CONFIG_SYS_PCI1_MEM_PHYS & LAWBAR_BAR;
Paul Gortmaker91e25762007-01-16 11:38:14 -050080 pci_law[0].ar = LAWAR_EN | LAWAR_SIZE_1G;
81
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +020082 pci_law[1].bar = CONFIG_SYS_PCI1_IO_PHYS & LAWBAR_BAR;
Paul Gortmaker91e25762007-01-16 11:38:14 -050083 pci_law[1].ar = LAWAR_EN | LAWAR_SIZE_4M;
84
Kim Phillips9993e192009-07-18 18:42:13 -050085 udelay(2000);
Paul Gortmaker91e25762007-01-16 11:38:14 -050086
Peter Tyser6aa3d3b2010-09-14 19:13:50 -050087 mpc83xx_pci_init(1, reg);
Paul Gortmaker91e25762007-01-16 11:38:14 -050088}