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Commit | Line | Data |
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46263f2d | 1 | /* |
1b387ef5 | 2 | * SPDX-License-Identifier: GPL-2.0 IBM-pibs |
46263f2d | 3 | */ |
c609719b WD |
4 | /* |
5 | * Adapted for PIP405 03.07.01 | |
6 | * Denis Peter, MPL AG Switzerland, d.peter@mpl.ch | |
7 | * | |
8 | * TODO: Clean-up | |
9 | */ | |
10 | ||
11 | #include <common.h> | |
12 | #include <pci.h> | |
13 | #include "isa.h" | |
14 | ||
15 | #ifdef CONFIG_405GP | |
16 | #ifdef CONFIG_PCI | |
17 | ||
d87080b7 | 18 | DECLARE_GLOBAL_DATA_PTR; |
c609719b WD |
19 | |
20 | #include "piix4_pci.h" | |
21 | #include "pci_parts.h" | |
22 | ||
57da153e CD |
23 | void pci_405gp_init(struct pci_controller *hose); |
24 | ||
c609719b | 25 | void pci_pip405_write_regs(struct pci_controller *hose, pci_dev_t dev, |
57da153e | 26 | struct pci_config_table *entry) |
c609719b WD |
27 | { |
28 | struct pci_pip405_config_entry *table; | |
29 | int i; | |
30 | ||
57da153e | 31 | table = (struct pci_pip405_config_entry *)entry->priv[0]; |
c609719b | 32 | |
57da153e | 33 | for (i = 0; table[i].width; i++) { |
c609719b WD |
34 | #ifdef DEBUG |
35 | printf("Reg 0x%02X Value 0x%08lX Width %02d written\n", | |
36 | table[i].index, table[i].val, table[i].width); | |
37 | #endif | |
38 | ||
57da153e CD |
39 | switch (table[i].width) { |
40 | case 1: | |
41 | pci_hose_write_config_byte(hose, dev, | |
42 | table[i].index, table[i].val); | |
43 | break; | |
44 | case 2: | |
45 | pci_hose_write_config_word(hose, dev, | |
46 | table[i].index, table[i].val); | |
47 | break; | |
48 | case 4: | |
49 | pci_hose_write_config_dword(hose, dev, | |
50 | table[i].index, table[i].val); | |
51 | break; | |
c609719b WD |
52 | } |
53 | } | |
54 | } | |
55 | ||
56 | ||
57 | static void pci_pip405_fixup_irq(struct pci_controller *hose, pci_dev_t dev) | |
58 | { | |
59 | unsigned char int_line = 0xff; | |
3e38691e | 60 | unsigned char pin; |
c609719b WD |
61 | /* |
62 | * Write pci interrupt line register | |
63 | */ | |
57da153e | 64 | if (PCI_DEV(dev) == 0) /* Device0 = PPC405 -> skip */ |
c609719b | 65 | return; |
3e38691e WD |
66 | pci_hose_read_config_byte(hose, dev, PCI_INTERRUPT_PIN, &pin); |
67 | if ((pin == 0) || (pin > 4)) | |
57da153e | 68 | return; |
3e38691e WD |
69 | |
70 | int_line = ((PCI_DEV(dev) + (pin-1) + 10) % 4) + 28; | |
71 | pci_hose_write_config_byte(hose, dev, PCI_INTERRUPT_LINE, int_line); | |
c609719b | 72 | #ifdef DEBUG |
3e38691e | 73 | printf("Fixup IRQ: dev %d (%x) int line %d 0x%x\n", |
57da153e | 74 | PCI_DEV(dev), dev, int_line, int_line); |
c609719b | 75 | #endif |
c609719b WD |
76 | } |
77 | ||
c609719b WD |
78 | |
79 | static struct pci_controller hose = { | |
57da153e CD |
80 | config_table: pci_pip405_config_table, |
81 | fixup_irq : pci_pip405_fixup_irq, | |
c609719b WD |
82 | }; |
83 | ||
3e38691e | 84 | |
ad10dd9a | 85 | void pci_init_board(void) |
c609719b WD |
86 | { |
87 | /*we want the ptrs to RAM not flash (ie don't use init list)*/ | |
88 | hose.fixup_irq = pci_pip405_fixup_irq; | |
89 | hose.config_table = pci_pip405_config_table; | |
3e38691e | 90 | #ifdef DEBUG |
57da153e CD |
91 | printf("Init PCI: fixup_irq=%p config_table=%p hose=%p\n", |
92 | pci_pip405_fixup_irq, pci_pip405_config_table, hose); | |
3e38691e | 93 | #endif |
c609719b WD |
94 | pci_405gp_init(&hose); |
95 | } | |
96 | ||
97 | #endif /* CONFIG_PCI */ | |
98 | #endif /* CONFIG_405GP */ |