source: SVN/rincon/u-boot/board/eltec/elppc/pci.c @ 55

Last change on this file since 55 was 55, checked in by Tim Harvey, 22 months ago

rincon: added latest u-boot source

restored form server backup

Signed-off-by: Tim Harvey <tharvey@…>

File size: 2.4 KB
Line 
1/*
2 * (C) Copyright 2002 ELTEC Elektronik AG
3 * Frank Gottschling <fgottschling@eltec.de>
4 *
5 * See file CREDITS for list of people who contributed to this
6 * project.
7 *
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License as
10 * published by the Free Software Foundation; either version 2 of
11 * the License, or (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
21 * MA 02111-1307 USA
22 */
23
24/*
25 * PCI initialisation for the MPC10x.
26 */
27
28#include <common.h>
29#include <pci.h>
30#include <mpc106.h>
31
32#ifdef CONFIG_PCI
33
34struct pci_controller local_hose;
35
36void pci_init_board(void)
37{
38    struct pci_controller* hose = (struct pci_controller *)&local_hose;
39    u16 reg16;
40
41    hose->first_busno = 0;
42    hose->last_busno = 0xff;
43
44    pci_set_region(hose->regions + 0,
45        CFG_PCI_MEMORY_BUS,
46        CFG_PCI_MEMORY_PHYS,
47        CFG_PCI_MEMORY_SIZE,
48        PCI_REGION_MEM | PCI_REGION_MEMORY);
49
50    /* PCI memory space */
51    pci_set_region(hose->regions + 1,
52        CFG_PCI_MEM_BUS,
53        CFG_PCI_MEM_PHYS,
54        CFG_PCI_MEM_SIZE,
55        PCI_REGION_MEM);
56
57    /* ISA/PCI memory space */
58    pci_set_region(hose->regions + 2,
59        CFG_ISA_MEM_BUS,
60        CFG_ISA_MEM_PHYS,
61        CFG_ISA_MEM_SIZE,
62        PCI_REGION_MEM);
63
64    /* PCI I/O space */
65    pci_set_region(hose->regions + 3,
66        CFG_PCI_IO_BUS,
67        CFG_PCI_IO_PHYS,
68        CFG_PCI_IO_SIZE,
69        PCI_REGION_IO);
70
71    /* ISA/PCI I/O space */
72    pci_set_region(hose->regions + 4,
73        CFG_ISA_IO_BUS,
74        CFG_ISA_IO_PHYS,
75        CFG_ISA_IO_SIZE,
76        PCI_REGION_IO);
77
78    hose->region_count = 5;
79
80    pci_setup_indirect(hose,
81        MPC106_REG_ADDR,
82        MPC106_REG_DATA);
83
84    pci_register_hose(hose);
85
86    hose->last_busno = pci_hose_scan(hose);
87
88    /* Initialises the MPC10x PCI Configuration regs. */
89    pci_read_config_word (PCI_BDF(0,0,0), PCI_COMMAND, &reg16);
90    reg16 |= PCI_COMMAND_SERR | PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY;
91    pci_write_config_word(PCI_BDF(0,0,0), PCI_COMMAND, reg16);
92
93    /* Clear non-reserved bits in status register */
94    pci_write_config_word(PCI_BDF(0,0,0), PCI_STATUS, 0xffff);
95}
96
97#endif /* CONFIG_PCI */
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