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1a2334a4 YG |
1 | /* |
2 | * SH4 PCI Controller (PCIC) for U-Boot. | |
3 | * (C) Dustin McIntire (dustin@sensoria.com) | |
ab8f4d40 | 4 | * (C) 2007,2008 Nobuhiro Iwamatsu <iwamatsu@nigauri.org> |
1a2334a4 YG |
5 | * (C) 2008 Yusuke Goda <goda.yusuke@renesas.com> |
6 | * | |
8f0fec74 | 7 | * u-boot/arch/sh/cpu/sh4/pci-sh4.c |
1a2334a4 YG |
8 | * |
9 | * See file CREDITS for list of people who contributed to this | |
10 | * project. | |
11 | * | |
12 | * This program is free software; you can redistribute it and/or | |
13 | * modify it under the terms of the GNU General Public License as | |
14 | * published by the Free Software Foundation; either version 2 of | |
15 | * the License, or (at your option) any later version. | |
16 | * | |
17 | * This program is distributed in the hope that it will be useful, | |
18 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
20 | * GNU General Public License for more details. | |
21 | * | |
22 | * You should have received a copy of the GNU General Public License | |
23 | * along with this program; if not, write to the Free Software | |
24 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, | |
25 | * MA 02111-1307 USA | |
26 | */ | |
27 | ||
28 | #include <common.h> | |
29 | ||
1a2334a4 YG |
30 | #include <asm/processor.h> |
31 | #include <asm/io.h> | |
32 | #include <asm/pci.h> | |
33 | #include <pci.h> | |
34 | ||
35 | int pci_sh4_init(struct pci_controller *hose) | |
36 | { | |
37 | hose->first_busno = 0; | |
38 | hose->region_count = 0; | |
39 | hose->last_busno = 0xff; | |
40 | ||
41 | /* PCI memory space */ | |
42 | pci_set_region(hose->regions + 0, | |
43 | CONFIG_PCI_MEM_BUS, | |
44 | CONFIG_PCI_MEM_PHYS, | |
45 | CONFIG_PCI_MEM_SIZE, | |
46 | PCI_REGION_MEM); | |
47 | hose->region_count++; | |
48 | ||
49 | /* PCI IO space */ | |
50 | pci_set_region(hose->regions + 1, | |
51 | CONFIG_PCI_IO_BUS, | |
52 | CONFIG_PCI_IO_PHYS, | |
53 | CONFIG_PCI_IO_SIZE, | |
54 | PCI_REGION_IO); | |
55 | hose->region_count++; | |
56 | ||
06e2735e YS |
57 | #if defined(CONFIG_PCI_SYS_BUS) |
58 | /* PCI System Memory space */ | |
59 | pci_set_region(hose->regions + 2, | |
60 | CONFIG_PCI_SYS_BUS, | |
61 | CONFIG_PCI_SYS_PHYS, | |
62 | CONFIG_PCI_SYS_SIZE, | |
63 | PCI_REGION_MEM | PCI_REGION_SYS_MEMORY); | |
64 | hose->region_count++; | |
65 | #endif | |
66 | ||
1a2334a4 YG |
67 | udelay(1000); |
68 | ||
69 | pci_set_ops(hose, | |
70 | pci_hose_read_config_byte_via_dword, | |
71 | pci_hose_read_config_word_via_dword, | |
72 | pci_sh4_read_config_dword, | |
73 | pci_hose_write_config_byte_via_dword, | |
74 | pci_hose_write_config_word_via_dword, | |
75 | pci_sh4_write_config_dword); | |
76 | ||
77 | pci_register_hose(hose); | |
78 | ||
79 | udelay(1000); | |
80 | ||
81 | #ifdef CONFIG_PCI_SCAN_SHOW | |
82 | printf("PCI: Bus Dev VenId DevId Class Int\n"); | |
83 | #endif | |
84 | hose->last_busno = pci_hose_scan(hose); | |
85 | return 0; | |
86 | } | |
d85f46a2 NI |
87 | |
88 | int pci_skip_dev(struct pci_controller *hose, pci_dev_t dev) | |
89 | { | |
90 | return 0; | |
91 | } | |
92 | ||
93 | #ifdef CONFIG_PCI_SCAN_SHOW | |
94 | int pci_print_dev(struct pci_controller *hose, pci_dev_t dev) | |
95 | { | |
96 | return 1; | |
97 | } | |
98 | #endif /* CONFIG_PCI_SCAN_SHOW */ |