diff options
author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /arch/mips/pci/fixup-jmr3927.c |
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'arch/mips/pci/fixup-jmr3927.c')
-rw-r--r-- | arch/mips/pci/fixup-jmr3927.c | 105 |
1 files changed, 105 insertions, 0 deletions
diff --git a/arch/mips/pci/fixup-jmr3927.c b/arch/mips/pci/fixup-jmr3927.c new file mode 100644 index 000000000000..f8696081c5b1 --- /dev/null +++ b/arch/mips/pci/fixup-jmr3927.c | |||
@@ -0,0 +1,105 @@ | |||
1 | /* | ||
2 | * | ||
3 | * BRIEF MODULE DESCRIPTION | ||
4 | * Board specific pci fixups. | ||
5 | * | ||
6 | * Copyright 2001 MontaVista Software Inc. | ||
7 | * Author: MontaVista Software, Inc. | ||
8 | * ppopov@mvista.com or source@mvista.com | ||
9 | * | ||
10 | * This program is free software; you can redistribute it and/or modify it | ||
11 | * under the terms of the GNU General Public License as published by the | ||
12 | * Free Software Foundation; either version 2 of the License, or (at your | ||
13 | * option) any later version. | ||
14 | * | ||
15 | * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED | ||
16 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF | ||
17 | * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN | ||
18 | * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, | ||
19 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT | ||
20 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF | ||
21 | * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON | ||
22 | * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | ||
23 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF | ||
24 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | ||
25 | * | ||
26 | * You should have received a copy of the GNU General Public License along | ||
27 | * with this program; if not, write to the Free Software Foundation, Inc., | ||
28 | * 675 Mass Ave, Cambridge, MA 02139, USA. | ||
29 | */ | ||
30 | #include <linux/types.h> | ||
31 | #include <linux/pci.h> | ||
32 | #include <linux/kernel.h> | ||
33 | #include <linux/init.h> | ||
34 | |||
35 | #include <asm/jmr3927/jmr3927.h> | ||
36 | |||
37 | int __init pcibios_map_irq(struct pci_dev *dev, u8 slot, u8 pin) | ||
38 | { | ||
39 | unsigned char irq = pin; | ||
40 | |||
41 | /* IRQ rotation (PICMG) */ | ||
42 | irq--; /* 0-3 */ | ||
43 | if (dev->bus->parent == NULL && | ||
44 | slot == TX3927_PCIC_IDSEL_AD_TO_SLOT(23)) { | ||
45 | /* PCI CardSlot (IDSEL=A23, DevNu=12) */ | ||
46 | /* PCIA => PCIC (IDSEL=A23) */ | ||
47 | /* NOTE: JMR3927 JP1 must be set to OPEN */ | ||
48 | irq = (irq + 2) % 4; | ||
49 | } else if (dev->bus->parent == NULL && | ||
50 | slot == TX3927_PCIC_IDSEL_AD_TO_SLOT(22)) { | ||
51 | /* PCI CardSlot (IDSEL=A22, DevNu=11) */ | ||
52 | /* PCIA => PCIA (IDSEL=A22) */ | ||
53 | /* NOTE: JMR3927 JP1 must be set to OPEN */ | ||
54 | irq = (irq + 0) % 4; | ||
55 | } else { | ||
56 | /* PCI Backplane */ | ||
57 | irq = (irq + 3 + slot) % 4; | ||
58 | } | ||
59 | irq++; /* 1-4 */ | ||
60 | |||
61 | switch (irq) { | ||
62 | case 1: | ||
63 | irq = JMR3927_IRQ_IOC_PCIA; | ||
64 | break; | ||
65 | case 2: | ||
66 | // wrong for backplane irq = JMR3927_IRQ_IOC_PCIB; | ||
67 | irq = JMR3927_IRQ_IOC_PCID; | ||
68 | break; | ||
69 | case 3: | ||
70 | irq = JMR3927_IRQ_IOC_PCIC; | ||
71 | break; | ||
72 | case 4: | ||
73 | // wrong for backplane irq = JMR3927_IRQ_IOC_PCID; | ||
74 | irq = JMR3927_IRQ_IOC_PCIB; | ||
75 | break; | ||
76 | } | ||
77 | |||
78 | /* Check OnBoard Ethernet (IDSEL=A24, DevNu=13) */ | ||
79 | if (dev->bus->parent == NULL && | ||
80 | slot == TX3927_PCIC_IDSEL_AD_TO_SLOT(24)) { | ||
81 | extern int jmr3927_ether1_irq; | ||
82 | /* check this irq line was reserved for ether1 */ | ||
83 | if (jmr3927_ether1_irq != JMR3927_IRQ_ETHER0) | ||
84 | irq = JMR3927_IRQ_ETHER0; | ||
85 | else | ||
86 | irq = 0; /* disable */ | ||
87 | } | ||
88 | return irq; | ||
89 | } | ||
90 | |||
91 | /* Do platform specific device initialization at pci_enable_device() time */ | ||
92 | int pcibios_plat_dev_init(struct pci_dev *dev) | ||
93 | { | ||
94 | return 0; | ||
95 | } | ||
96 | |||
97 | int __init pcibios_map_irq(struct pci_dev *dev, u8 slot, u8 pin) | ||
98 | { | ||
99 | /* SMSC SLC90E66 IDE uses irq 14, 15 (default) */ | ||
100 | if (!(dev->vendor == PCI_VENDOR_ID_EFAR && | ||
101 | dev->device == PCI_DEVICE_ID_EFAR_SLC90E66_1)) | ||
102 | return pci_get_irq(dev, pin); | ||
103 | |||
104 | dev->irq = irq; | ||
105 | } | ||