diff options
Diffstat (limited to 'arch/sh/drivers/pci/ops-landisk.c')
-rw-r--r-- | arch/sh/drivers/pci/ops-landisk.c | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/arch/sh/drivers/pci/ops-landisk.c b/arch/sh/drivers/pci/ops-landisk.c new file mode 100644 index 000000000000..ada301c21fe7 --- /dev/null +++ b/arch/sh/drivers/pci/ops-landisk.c | |||
@@ -0,0 +1,68 @@ | |||
1 | /* | ||
2 | * arch/sh/drivers/pci/ops-landisk.c | ||
3 | * | ||
4 | * PCI initialization for the I-O DATA Device, Inc. LANDISK board | ||
5 | * | ||
6 | * Copyright (C) 2006 kogiidena | ||
7 | * | ||
8 | * May be copied or modified under the terms of the GNU General Public | ||
9 | * License. See linux/COPYING for more information. | ||
10 | */ | ||
11 | #include <linux/config.h> | ||
12 | #include <linux/kernel.h> | ||
13 | #include <linux/types.h> | ||
14 | #include <linux/init.h> | ||
15 | #include <linux/delay.h> | ||
16 | #include <linux/pci.h> | ||
17 | #include "pci-sh4.h" | ||
18 | |||
19 | static struct resource sh7751_io_resource = { | ||
20 | .name = "SH7751 IO", | ||
21 | .start = 0x4000, | ||
22 | .end = 0x4000 + SH7751_PCI_IO_SIZE - 1, | ||
23 | .flags = IORESOURCE_IO | ||
24 | }; | ||
25 | |||
26 | static struct resource sh7751_mem_resource = { | ||
27 | .name = "SH7751 mem", | ||
28 | .start = SH7751_PCI_MEMORY_BASE, | ||
29 | .end = SH7751_PCI_MEMORY_BASE + SH7751_PCI_MEM_SIZE - 1, | ||
30 | .flags = IORESOURCE_MEM | ||
31 | }; | ||
32 | |||
33 | struct pci_channel board_pci_channels[] = { | ||
34 | {&sh4_pci_ops, &sh7751_io_resource, &sh7751_mem_resource, 0, 0x3ff}, | ||
35 | {NULL, NULL, NULL, 0, 0}, | ||
36 | }; | ||
37 | |||
38 | static struct sh4_pci_address_map sh7751_pci_map = { | ||
39 | .window0 = { | ||
40 | .base = SH7751_CS3_BASE_ADDR, | ||
41 | .size = (64 << 20), /* 64MB */ | ||
42 | }, | ||
43 | |||
44 | .flags = SH4_PCIC_NO_RESET, | ||
45 | }; | ||
46 | |||
47 | int __init pcibios_init_platform(void) | ||
48 | { | ||
49 | return sh7751_pcic_init(&sh7751_pci_map); | ||
50 | } | ||
51 | |||
52 | int pcibios_map_platform_irq(struct pci_dev *pdev, u8 slot, u8 pin) | ||
53 | { | ||
54 | /* | ||
55 | * slot0: pin1-4 = irq5,6,7,8 | ||
56 | * slot1: pin1-4 = irq6,7,8,5 | ||
57 | * slot2: pin1-4 = irq7,8,5,6 | ||
58 | * slot3: pin1-4 = irq8,5,6,7 | ||
59 | */ | ||
60 | int irq = ((slot + pin - 1) & 0x3) + 5; | ||
61 | |||
62 | if ((slot | (pin - 1)) > 0x3) { | ||
63 | printk("PCI: Bad IRQ mapping request for slot %d pin %c\n", | ||
64 | slot, pin - 1 + 'A'); | ||
65 | return -1; | ||
66 | } | ||
67 | return irq; | ||
68 | } | ||