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Commit | Line | Data |
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0e16387d MM |
1 | /* |
2 | * Copyright 2004 Freescale Semiconductor. | |
3 | * | |
1a459660 | 4 | * SPDX-License-Identifier: GPL-2.0+ |
0e16387d MM |
5 | */ |
6 | ||
7 | #include <common.h> | |
b90d2549 KG |
8 | #include <libfdt.h> |
9 | #include <fdt_support.h> | |
084d648b AF |
10 | #include "cadmus.h" |
11 | ||
b90d2549 | 12 | #if defined(CONFIG_OF_BOARD_SETUP) |
084d648b AF |
13 | static void cds_pci_fixup(void *blob) |
14 | { | |
67926c2a | 15 | int node; |
b90d2549 KG |
16 | const char *path; |
17 | int len, slot, i; | |
acac075b JB |
18 | u32 *map = NULL, *piccells = NULL; |
19 | int off, cells; | |
084d648b | 20 | |
b90d2549 | 21 | node = fdt_path_offset(blob, "/aliases"); |
b90d2549 KG |
22 | if (node >= 0) { |
23 | path = fdt_getprop(blob, node, "pci0", NULL); | |
24 | if (path) { | |
25 | node = fdt_path_offset(blob, path); | |
26 | if (node >= 0) { | |
27 | map = fdt_getprop_w(blob, node, "interrupt-map", &len); | |
28 | } | |
acac075b JB |
29 | /* Each item in "interrupt-map" property is translated with |
30 | * following cells: | |
31 | * PCI #address-cells, PCI #interrupt-cells, | |
32 | * PIC address, PIC #address-cells, PIC #interrupt-cells. | |
33 | */ | |
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))); | |
37 | if (off <= 0) | |
38 | return; | |
39 | cells += 1; | |
40 | piccells = (u32 *)fdt_getprop(blob, off, "#address-cells", NULL); | |
41 | if (piccells == NULL) | |
42 | return; | |
43 | cells += *piccells; | |
44 | piccells = (u32 *)fdt_getprop(blob, off, "#interrupt-cells", NULL); | |
45 | if (piccells == NULL) | |
46 | return; | |
47 | cells += *piccells; | |
b90d2549 KG |
48 | } |
49 | } | |
084d648b | 50 | |
7600d47b KG |
51 | if (map) { |
52 | len /= sizeof(u32); | |
084d648b | 53 | |
7600d47b | 54 | slot = get_pci_slot(); |
084d648b | 55 | |
acac075b | 56 | for (i=0;i<len;i+=cells) { |
7600d47b KG |
57 | /* We rotate the interrupt pins so that the mapping |
58 | * changes depending on the slot the carrier card is in. | |
59 | */ | |
60 | map[3] = ((map[3] + slot - 2) % 4) + 1; | |
acac075b | 61 | map+=cells; |
7600d47b | 62 | } |
084d648b AF |
63 | } |
64 | } | |
0e16387d | 65 | |
0e16387d MM |
66 | void |
67 | ft_board_setup(void *blob, bd_t *bd) | |
68 | { | |
b90d2549 | 69 | ft_cpu_setup(blob, bd); |
bf1dfffd MM |
70 | #ifdef CONFIG_PCI |
71 | ft_pci_setup(blob, bd); | |
084d648b | 72 | cds_pci_fixup(blob); |
b90d2549 | 73 | #endif |
0e16387d MM |
74 | } |
75 | #endif |