source: SVN/rincon/u-boot/board/freescale/mpc837xemds/pci.c @ 55

Last change on this file since 55 was 55, checked in by Tim Harvey, 2 years ago

rincon: added latest u-boot source

restored form server backup

Signed-off-by: Tim Harvey <tharvey@…>

File size: 1.6 KB
Line 
1/*
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        {
24                bus_start: CFG_PCI_MEM_BASE,
25                phys_start: CFG_PCI_MEM_PHYS,
26                size: CFG_PCI_MEM_SIZE,
27                flags: PCI_REGION_MEM | PCI_REGION_PREFETCH
28        },
29        {
30                bus_start: CFG_PCI_MMIO_BASE,
31                phys_start: CFG_PCI_MMIO_PHYS,
32                size: CFG_PCI_MMIO_SIZE,
33                flags: PCI_REGION_MEM
34        },
35        {
36                bus_start: CFG_PCI_IO_BASE,
37                phys_start: CFG_PCI_IO_PHYS,
38                size: CFG_PCI_IO_SIZE,
39                flags: PCI_REGION_IO
40        }
41};
42
43void pci_init_board(void)
44{
45        volatile immap_t *immr = (volatile immap_t *)CFG_IMMR;
46        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
50        /* Enable all 5 PCI_CLK_OUTPUTS */
51        clk->occr |= 0xf8000000;
52        udelay(2000);
53
54        /* Configure PCI Local Access Windows */
55        pci_law[0].bar = CFG_PCI_MEM_PHYS & LAWBAR_BAR;
56        pci_law[0].ar = LBLAWAR_EN | LBLAWAR_512MB;
57
58        pci_law[1].bar = CFG_PCI_IO_PHYS & LAWBAR_BAR;
59        pci_law[1].ar = LBLAWAR_EN | LBLAWAR_1MB;
60
61        udelay(2000);
62
63        mpc83xx_pci_init(1, reg, 0);
64}
65#endif /* CONFIG_PCI */
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