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)
22 static struct pci_region pci_regions[] = {
23 	{
24 		bus_start: CONFIG_SYS_PCI_MEM_BASE,
25 		phys_start: CONFIG_SYS_PCI_MEM_PHYS,
26 		size: CONFIG_SYS_PCI_MEM_SIZE,
27 		flags: PCI_REGION_MEM | PCI_REGION_PREFETCH
28 	},
29 	{
30 		bus_start: CONFIG_SYS_PCI_MMIO_BASE,
31 		phys_start: CONFIG_SYS_PCI_MMIO_PHYS,
32 		size: CONFIG_SYS_PCI_MMIO_SIZE,
33 		flags: PCI_REGION_MEM
34 	},
35 	{
36 		bus_start: CONFIG_SYS_PCI_IO_BASE,
37 		phys_start: CONFIG_SYS_PCI_IO_PHYS,
38 		size: CONFIG_SYS_PCI_IO_SIZE,
39 		flags: PCI_REGION_IO
40 	}
41 };
42 
43 void pci_init_board(void)
44 {
45 	volatile immap_t *immr = (volatile immap_t *)CONFIG_SYS_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 	if (board_pci_host_broken())
51 		return;
52 
53 	/* Enable all 5 PCI_CLK_OUTPUTS */
54 	clk->occr |= 0xf8000000;
55 	udelay(2000);
56 
57 	/* Configure PCI Local Access Windows */
58 	pci_law[0].bar = CONFIG_SYS_PCI_MEM_PHYS & LAWBAR_BAR;
59 	pci_law[0].ar = LBLAWAR_EN | LBLAWAR_512MB;
60 
61 	pci_law[1].bar = CONFIG_SYS_PCI_IO_PHYS & LAWBAR_BAR;
62 	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 */
69