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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 | 8 | * |
1a459660 | 9 | * SPDX-License-Identifier: GPL-2.0+ |
1a2334a4 YG |
10 | */ |
11 | ||
12 | #include <common.h> | |
13 | ||
1a2334a4 YG |
14 | #include <asm/processor.h> |
15 | #include <asm/io.h> | |
16 | #include <asm/pci.h> | |
17 | #include <pci.h> | |
18 | ||
19 | int pci_sh4_init(struct pci_controller *hose) | |
20 | { | |
21 | hose->first_busno = 0; | |
22 | hose->region_count = 0; | |
23 | hose->last_busno = 0xff; | |
24 | ||
25 | /* PCI memory space */ | |
26 | pci_set_region(hose->regions + 0, | |
27 | CONFIG_PCI_MEM_BUS, | |
28 | CONFIG_PCI_MEM_PHYS, | |
29 | CONFIG_PCI_MEM_SIZE, | |
30 | PCI_REGION_MEM); | |
31 | hose->region_count++; | |
32 | ||
33 | /* PCI IO space */ | |
34 | pci_set_region(hose->regions + 1, | |
35 | CONFIG_PCI_IO_BUS, | |
36 | CONFIG_PCI_IO_PHYS, | |
37 | CONFIG_PCI_IO_SIZE, | |
38 | PCI_REGION_IO); | |
39 | hose->region_count++; | |
40 | ||
06e2735e YS |
41 | #if defined(CONFIG_PCI_SYS_BUS) |
42 | /* PCI System Memory space */ | |
43 | pci_set_region(hose->regions + 2, | |
44 | CONFIG_PCI_SYS_BUS, | |
45 | CONFIG_PCI_SYS_PHYS, | |
46 | CONFIG_PCI_SYS_SIZE, | |
47 | PCI_REGION_MEM | PCI_REGION_SYS_MEMORY); | |
48 | hose->region_count++; | |
49 | #endif | |
50 | ||
1a2334a4 YG |
51 | udelay(1000); |
52 | ||
53 | pci_set_ops(hose, | |
54 | pci_hose_read_config_byte_via_dword, | |
55 | pci_hose_read_config_word_via_dword, | |
56 | pci_sh4_read_config_dword, | |
57 | pci_hose_write_config_byte_via_dword, | |
58 | pci_hose_write_config_word_via_dword, | |
59 | pci_sh4_write_config_dword); | |
60 | ||
61 | pci_register_hose(hose); | |
62 | ||
63 | udelay(1000); | |
64 | ||
65 | #ifdef CONFIG_PCI_SCAN_SHOW | |
66 | printf("PCI: Bus Dev VenId DevId Class Int\n"); | |
67 | #endif | |
68 | hose->last_busno = pci_hose_scan(hose); | |
69 | return 0; | |
70 | } | |
d85f46a2 NI |
71 | |
72 | int pci_skip_dev(struct pci_controller *hose, pci_dev_t dev) | |
73 | { | |
74 | return 0; | |
75 | } | |
76 | ||
77 | #ifdef CONFIG_PCI_SCAN_SHOW | |
78 | int pci_print_dev(struct pci_controller *hose, pci_dev_t dev) | |
79 | { | |
80 | return 1; | |
81 | } | |
82 | #endif /* CONFIG_PCI_SCAN_SHOW */ |