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1 | /* |
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2 | * Copyright (C) NEC Electronics Corporation 2004-2006 |
3 | * |
4 | * This file is based on the arch/mips/ddb5xxx/ddb5477/pci.c |
5 | * |
6 | * Copyright 2001 MontaVista Software Inc. |
7 | * |
8 | * This program is free software; you can redistribute it and/or modify |
9 | * it under the terms of the GNU General Public License as published by |
10 | * the Free Software Foundation; either version 2 of the License, or |
11 | * (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, MA 02111-1307 USA |
21 | */ |
22 | |
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23 | #include <linux/kernel.h> |
24 | #include <linux/init.h> |
25 | #include <linux/types.h> |
26 | #include <linux/pci.h> |
27 | |
28 | #include <asm/bootinfo.h> |
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29 | |
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30 | #include <asm/emma/emma2rh.h> |
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31 | |
32 | static struct resource pci_io_resource = { |
33 | .name = "pci IO space", |
34 | .start = EMMA2RH_PCI_IO_BASE, |
35 | .end = EMMA2RH_PCI_IO_BASE + EMMA2RH_PCI_IO_SIZE - 1, |
36 | .flags = IORESOURCE_IO, |
37 | }; |
38 | |
39 | static struct resource pci_mem_resource = { |
40 | .name = "pci memory space", |
41 | .start = EMMA2RH_PCI_MEM_BASE, |
42 | .end = EMMA2RH_PCI_MEM_BASE + EMMA2RH_PCI_MEM_SIZE - 1, |
43 | .flags = IORESOURCE_MEM, |
44 | }; |
45 | |
46 | extern struct pci_ops emma2rh_pci_ops; |
47 | |
48 | static struct pci_controller emma2rh_pci_controller = { |
49 | .pci_ops = &emma2rh_pci_ops, |
50 | .mem_resource = &pci_mem_resource, |
51 | .io_resource = &pci_io_resource, |
52 | .mem_offset = -0x04000000, |
53 | .io_offset = 0, |
54 | }; |
55 | |
56 | static void __init emma2rh_pci_init(void) |
57 | { |
58 | /* setup PCI interface */ |
59 | emma2rh_out32(EMMA2RH_PCI_ARBIT_CTR, 0x70f); |
60 | |
61 | emma2rh_out32(EMMA2RH_PCI_IWIN0_CTR, 0x80000a18); |
62 | emma2rh_out32(EMMA2RH_PCI_CONFIG_BASE + PCI_COMMAND, |
63 | PCI_STATUS_DEVSEL_MEDIUM | PCI_STATUS_CAP_LIST | |
64 | PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY); |
65 | emma2rh_out32(EMMA2RH_PCI_CONFIG_BASE + PCI_BASE_ADDRESS_0, 0x10000000); |
66 | emma2rh_out32(EMMA2RH_PCI_CONFIG_BASE + PCI_BASE_ADDRESS_1, 0x00000000); |
67 | |
68 | emma2rh_out32(EMMA2RH_PCI_IWIN0_CTR, 0x12000000 | 0x218); |
69 | emma2rh_out32(EMMA2RH_PCI_IWIN1_CTR, 0x18000000 | 0x600); |
70 | emma2rh_out32(EMMA2RH_PCI_INIT_ESWP, 0x00000200); |
71 | |
72 | emma2rh_out32(EMMA2RH_PCI_TWIN_CTR, 0x00009200); |
73 | emma2rh_out32(EMMA2RH_PCI_TWIN_BADR, 0x00000000); |
74 | emma2rh_out32(EMMA2RH_PCI_TWIN0_DADR, 0x00000000); |
75 | emma2rh_out32(EMMA2RH_PCI_TWIN1_DADR, 0x00000000); |
76 | } |
77 | |
78 | static int __init emma2rh_pci_setup(void) |
79 | { |
80 | emma2rh_pci_init(); |
81 | register_pci_controller(&emma2rh_pci_controller); |
82 | return 0; |
83 | } |
84 | |
85 | arch_initcall(emma2rh_pci_setup); |