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 <common.h>
14 #include <mpc83xx.h>
15 #include <pci.h>
16 
17 #if defined(CONFIG_PCI)
18 static struct pci_region pci_regions[] = {
19 	{
20 		bus_start: CFG_PCI_MEM_BASE,
21 		phys_start: CFG_PCI_MEM_PHYS,
22 		size: CFG_PCI_MEM_SIZE,
23 		flags: PCI_REGION_MEM | PCI_REGION_PREFETCH
24 	},
25 	{
26 		bus_start: CFG_PCI_MMIO_BASE,
27 		phys_start: CFG_PCI_MMIO_PHYS,
28 		size: CFG_PCI_MMIO_SIZE,
29 		flags: PCI_REGION_MEM
30 	},
31 	{
32 		bus_start: CFG_PCI_IO_BASE,
33 		phys_start: CFG_PCI_IO_PHYS,
34 		size: CFG_PCI_IO_SIZE,
35 		flags: PCI_REGION_IO
36 	}
37 };
38 
39 void pci_init_board(void)
40 {
41 	volatile immap_t *immr = (volatile immap_t *)CFG_IMMR;
42 	volatile clk83xx_t *clk = (volatile clk83xx_t *)&immr->clk;
43 	volatile law83xx_t *pci_law = immr->sysconf.pcilaw;
44 	struct pci_region *reg[] = { pci_regions };
45 
46 	/* Enable all 5 PCI_CLK_OUTPUTS */
47 	clk->occr |= 0xf8000000;
48 	udelay(2000);
49 
50 	/* Configure PCI Local Access Windows */
51 	pci_law[0].bar = CFG_PCI_MEM_PHYS & LAWBAR_BAR;
52 	pci_law[0].ar = LBLAWAR_EN | LBLAWAR_512MB;
53 
54 	pci_law[1].bar = CFG_PCI_IO_PHYS & LAWBAR_BAR;
55 	pci_law[1].ar = LBLAWAR_EN | LBLAWAR_1MB;
56 
57 	mpc83xx_pci_init(1, reg, 0);
58 }
59 #endif	/* CONFIG_PCI */
60