blob: df4e748e971070a3e5fc600e2c9efa84251a1c2f [file] [log] [blame]
Dave Liub19ecd32007-09-18 12:37:57 +08001/*
2 * Copyright (C) 2007 Freescale Semiconductor, Inc.
3 *
4 * See file CREDITS for list of people who contributed to this
5 * project.
6 *
7 * This program is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License as
9 * published by the Free Software Foundation; either version 2 of
10 * the License, or (at your option) any later version.
11 */
12
13#include <asm/mmu.h>
14#include <asm/io.h>
15#include <common.h>
16#include <mpc83xx.h>
17#include <pci.h>
18#include <i2c.h>
19#include <asm/fsl_i2c.h>
20
21#if defined(CONFIG_PCI)
22static struct pci_region pci_regions[] = {
23 {
Jean-Christophe PLAGNIOL-VILLARD03836942008-10-16 15:01:15 +020024 bus_start: CONFIG_SYS_PCI_MEM_BASE,
25 phys_start: CONFIG_SYS_PCI_MEM_PHYS,
26 size: CONFIG_SYS_PCI_MEM_SIZE,
Dave Liub19ecd32007-09-18 12:37:57 +080027 flags: PCI_REGION_MEM | PCI_REGION_PREFETCH
28 },
29 {
Jean-Christophe PLAGNIOL-VILLARD03836942008-10-16 15:01:15 +020030 bus_start: CONFIG_SYS_PCI_MMIO_BASE,
31 phys_start: CONFIG_SYS_PCI_MMIO_PHYS,
32 size: CONFIG_SYS_PCI_MMIO_SIZE,
Dave Liub19ecd32007-09-18 12:37:57 +080033 flags: PCI_REGION_MEM
34 },
35 {
Jean-Christophe PLAGNIOL-VILLARD03836942008-10-16 15:01:15 +020036 bus_start: CONFIG_SYS_PCI_IO_BASE,
37 phys_start: CONFIG_SYS_PCI_IO_PHYS,
38 size: CONFIG_SYS_PCI_IO_SIZE,
Dave Liub19ecd32007-09-18 12:37:57 +080039 flags: PCI_REGION_IO
40 }
41};
42
43void pci_init_board(void)
44{
Jean-Christophe PLAGNIOL-VILLARD03836942008-10-16 15:01:15 +020045 volatile immap_t *immr = (volatile immap_t *)CONFIG_SYS_IMMR;
Dave Liub19ecd32007-09-18 12:37:57 +080046 volatile clk83xx_t *clk = (volatile clk83xx_t *)&immr->clk;
47 volatile law83xx_t *pci_law = immr->sysconf.pcilaw;
48 struct pci_region *reg[] = { pci_regions };
49
Anton Vorontsov30c69922008-10-02 19:17:33 +040050 if (board_pci_host_broken())
51 return;
52
Dave Liub19ecd32007-09-18 12:37:57 +080053 /* Enable all 5 PCI_CLK_OUTPUTS */
54 clk->occr |= 0xf8000000;
55 udelay(2000);
56
57 /* Configure PCI Local Access Windows */
Jean-Christophe PLAGNIOL-VILLARD03836942008-10-16 15:01:15 +020058 pci_law[0].bar = CONFIG_SYS_PCI_MEM_PHYS & LAWBAR_BAR;
Dave Liub19ecd32007-09-18 12:37:57 +080059 pci_law[0].ar = LBLAWAR_EN | LBLAWAR_512MB;
60
Jean-Christophe PLAGNIOL-VILLARD03836942008-10-16 15:01:15 +020061 pci_law[1].bar = CONFIG_SYS_PCI_IO_PHYS & LAWBAR_BAR;
Dave Liub19ecd32007-09-18 12:37:57 +080062 pci_law[1].ar = LBLAWAR_EN | LBLAWAR_1MB;
63
64 udelay(2000);
65
66 mpc83xx_pci_init(1, reg, 0);
67}
68#endif /* CONFIG_PCI */