1 /*
2  * Copyright 2004 Freescale Semiconductor.
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  * This program is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.	 See the
15  * GNU General Public License for more details.
16  *
17  * You should have received a copy of the GNU General Public License
18  * along with this program; if not, write to the Free Software
19  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
20  * MA 02111-1307 USA
21  */
22 
23 #include <common.h>
24 #include <libfdt.h>
25 #include <fdt_support.h>
26 #include "cadmus.h"
27 
28 #if defined(CONFIG_OF_BOARD_SETUP)
29 static void cds_pci_fixup(void *blob)
30 {
31 	int node, tmp[2];
32 	const char *path;
33 	int len, slot, i;
34 	u32 *map = NULL;
35 
36 	node = fdt_path_offset(blob, "/aliases");
37 	tmp[0] = 0;
38 	if (node >= 0) {
39 		path = fdt_getprop(blob, node, "pci0", NULL);
40 		if (path) {
41 			node = fdt_path_offset(blob, path);
42 			if (node >= 0) {
43 				map = fdt_getprop_w(blob, node, "interrupt-map", &len);
44 			}
45 		}
46 	}
47 
48 	if (map) {
49 		len /= sizeof(u32);
50 
51 		slot = get_pci_slot();
52 
53 		for (i=0;i<len;i+=7) {
54 			/* We rotate the interrupt pins so that the mapping
55 			 * changes depending on the slot the carrier card is in.
56 			 */
57 			map[3] = ((map[3] + slot - 2) % 4) + 1;
58 			map+=7;
59 		}
60 	}
61 }
62 
63 void
64 ft_board_setup(void *blob, bd_t *bd)
65 {
66 	ft_cpu_setup(blob, bd);
67 #ifdef CONFIG_PCI
68 	ft_pci_setup(blob, bd);
69 	cds_pci_fixup(blob);
70 #endif
71 }
72 #endif
73