2 * Copyright 2004 Freescale Semiconductor.
4 * SPDX-License-Identifier: GPL-2.0+
9 #include <fdt_support.h>
12 #if defined(CONFIG_OF_BOARD_SETUP)
13 static void cds_pci_fixup(void *blob)
18 u32 *map = NULL, *piccells = NULL;
21 node = fdt_path_offset(blob, "/aliases");
23 path = fdt_getprop(blob, node, "pci0", NULL);
25 node = fdt_path_offset(blob, path);
27 map = fdt_getprop_w(blob, node, "interrupt-map", &len);
29 /* Each item in "interrupt-map" property is translated with
31 * PCI #address-cells, PCI #interrupt-cells,
32 * PIC address, PIC #address-cells, PIC #interrupt-cells.
34 cells = fdt_getprop_u32_default(blob, path, "#address-cells", 1);
35 cells += fdt_getprop_u32_default(blob, path, "#interrupt-cells", 1);
36 off = fdt_node_offset_by_phandle(blob, fdt32_to_cpu(*(map+cells)));
40 piccells = (u32 *)fdt_getprop(blob, off, "#address-cells", NULL);
44 piccells = (u32 *)fdt_getprop(blob, off, "#interrupt-cells", NULL);
54 slot = get_pci_slot();
56 for (i=0;i<len;i+=cells) {
57 /* We rotate the interrupt pins so that the mapping
58 * changes depending on the slot the carrier card is in.
60 map[3] = ((map[3] + slot - 2) % 4) + 1;
66 int ft_board_setup(void *blob, bd_t *bd)
68 ft_cpu_setup(blob, bd);
70 ft_pci_setup(blob, bd);