1 | /* PCI Initialization */ |
---|
2 | |
---|
3 | /* |
---|
4 | * Authorship |
---|
5 | * ---------- |
---|
6 | * This software ('mvme3100' RTEMS BSP) was created by |
---|
7 | * |
---|
8 | * Till Straumann <strauman@slac.stanford.edu>, 2005-2007, |
---|
9 | * Stanford Linear Accelerator Center, Stanford University. |
---|
10 | * |
---|
11 | * Acknowledgement of sponsorship |
---|
12 | * ------------------------------ |
---|
13 | * The 'mvme3100' BSP was produced by |
---|
14 | * the Stanford Linear Accelerator Center, Stanford University, |
---|
15 | * under Contract DE-AC03-76SFO0515 with the Department of Energy. |
---|
16 | * |
---|
17 | * Government disclaimer of liability |
---|
18 | * ---------------------------------- |
---|
19 | * Neither the United States nor the United States Department of Energy, |
---|
20 | * nor any of their employees, makes any warranty, express or implied, or |
---|
21 | * assumes any legal liability or responsibility for the accuracy, |
---|
22 | * completeness, or usefulness of any data, apparatus, product, or process |
---|
23 | * disclosed, or represents that its use would not infringe privately owned |
---|
24 | * rights. |
---|
25 | * |
---|
26 | * Stanford disclaimer of liability |
---|
27 | * -------------------------------- |
---|
28 | * Stanford University makes no representations or warranties, express or |
---|
29 | * implied, nor assumes any liability for the use of this software. |
---|
30 | * |
---|
31 | * Stanford disclaimer of copyright |
---|
32 | * -------------------------------- |
---|
33 | * Stanford University, owner of the copyright, hereby disclaims its |
---|
34 | * copyright and all other rights in this software. Hence, anyone may |
---|
35 | * freely use it for any purpose without restriction. |
---|
36 | * |
---|
37 | * Maintenance of notices |
---|
38 | * ---------------------- |
---|
39 | * In the interest of clarity regarding the origin and status of this |
---|
40 | * SLAC software, this and all the preceding Stanford University notices |
---|
41 | * are to remain affixed to any copy or derivative of this software made |
---|
42 | * or distributed by the recipient and are to be affixed to any copy of |
---|
43 | * software made or distributed by the recipient that contains a copy or |
---|
44 | * derivative of this software. |
---|
45 | * |
---|
46 | * ------------------ SLAC Software Notices, Set 4 OTT.002a, 2004 FEB 03 |
---|
47 | */ |
---|
48 | |
---|
49 | #include <bsp.h> |
---|
50 | #include <bsp/pci.h> |
---|
51 | #include <bsp/irq.h> |
---|
52 | #include <bsp/openpic.h> |
---|
53 | #include <inttypes.h> |
---|
54 | |
---|
55 | /* Motload configures PCI interrupts to start at 16 and up but |
---|
56 | * we'd rather have them starting at 0. |
---|
57 | * Use this callback to fix them up. |
---|
58 | */ |
---|
59 | static int |
---|
60 | fixup_irq_line(int bus, int slot, int fun, void *uarg) |
---|
61 | { |
---|
62 | unsigned char line; |
---|
63 | pci_read_config_byte( bus, slot, fun, PCI_INTERRUPT_LINE, &line); |
---|
64 | if ( line >= BSP_EXT_IRQ_NUMBER ) { |
---|
65 | pci_write_config_byte( bus, slot, fun, PCI_INTERRUPT_LINE, line - BSP_EXT_IRQ_NUMBER ); |
---|
66 | } |
---|
67 | |
---|
68 | return 0; |
---|
69 | } |
---|
70 | |
---|
71 | void BSP_motload_pci_fixup(void) |
---|
72 | { |
---|
73 | BSP_pciScan(0, fixup_irq_line, 0); |
---|
74 | } |
---|
75 | |
---|
76 | void detect_host_bridge(void) |
---|
77 | { |
---|
78 | OpenPIC = (volatile struct OpenPIC *) (BSP_8540_CCSR_BASE + BSP_OPEN_PIC_BASE_OFFSET); |
---|
79 | } |
---|
80 | |
---|
81 | static int |
---|
82 | dump_dev_cb( |
---|
83 | int bus, |
---|
84 | int dev, |
---|
85 | int fun, |
---|
86 | void *uarg |
---|
87 | ) |
---|
88 | { |
---|
89 | uint16_t vi,di; |
---|
90 | uint16_t cd,st; |
---|
91 | uint32_t b1,b2; |
---|
92 | uint8_t il,ip; |
---|
93 | |
---|
94 | pci_read_config_word (bus, dev, fun, PCI_VENDOR_ID, &vi); |
---|
95 | pci_read_config_word (bus, dev, fun, PCI_DEVICE_ID, &di); |
---|
96 | pci_read_config_word (bus, dev, fun, PCI_COMMAND, &cd); |
---|
97 | pci_read_config_word (bus, dev, fun, PCI_STATUS, &st); |
---|
98 | pci_read_config_dword(bus, dev, fun, PCI_BASE_ADDRESS_0, &b1); |
---|
99 | pci_read_config_dword(bus, dev, fun, PCI_BASE_ADDRESS_1, &b2); |
---|
100 | pci_read_config_byte (bus, dev, fun, PCI_INTERRUPT_LINE, &il); |
---|
101 | pci_read_config_byte (bus, dev, fun, PCI_INTERRUPT_PIN, &ip); |
---|
102 | |
---|
103 | printk("%3d:0x%02x:%d 0x%04x-0x%04x: 0x%04x 0x%04x 0x%08" PRIx32 " 0x%08" PRIx32 " %d -> %3d (=0x%02x)\n", |
---|
104 | bus, dev, fun, vi, di, cd, st, b1, b2, ip, il, il); |
---|
105 | return 0; |
---|
106 | } |
---|
107 | |
---|
108 | void |
---|
109 | BSP_pciConfigDump_early(void) |
---|
110 | { |
---|
111 | printk("BUS:SLOT:FUN VENDOR-DEV_ID: COMMAND STATUS BASE_ADDR0 BASE_ADDR1 IRQ_PIN -> IRQ_LINE\n"); |
---|
112 | BSP_pciScan(0, dump_dev_cb, 0); |
---|
113 | } |
---|