[MIPS] Fix "no space between function name and open parenthesis" warnings.
[linux-2.6] / arch / mips / pci / pci-excite.c
1 /*
2  *  Copyright (C) 2004 by Basler Vision Technologies AG
3  *  Author: Thomas Koeller <thomas.koeller@baslerweb.com>
4  *  Based on the PMC-Sierra Yosemite board support by Ralf Baechle.
5  *
6  *  This program is free software; you can redistribute it and/or modify
7  *  it under the terms of the GNU General Public License as published by
8  *  the Free Software Foundation; either version 2 of the License, or
9  *  (at your option) any later version.
10  *
11  *  This program is distributed in the hope that it will be useful,
12  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
13  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14  *  GNU General Public License for more details.
15  *
16  *  You should have received a copy of the GNU General Public License
17  *  along with this program; if not, write to the Free Software
18  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
19  */
20 #include <linux/init.h>
21 #include <linux/kernel.h>
22 #include <linux/types.h>
23 #include <linux/pci.h>
24 #include <linux/bitops.h>
25 #include <asm/rm9k-ocd.h>
26 #include <excite.h>
27
28
29 extern struct pci_ops titan_pci_ops;
30
31
32 static struct resource
33         mem_resource =  {
34                 .name   = "PCI memory",
35                 .start  = EXCITE_PHYS_PCI_MEM,
36                 .end    = EXCITE_PHYS_PCI_MEM + EXCITE_SIZE_PCI_MEM - 1,
37                 .flags  = IORESOURCE_MEM
38         },
39         io_resource = {
40                 .name   = "PCI I/O",
41                 .start  = EXCITE_PHYS_PCI_IO,
42                 .end    = EXCITE_PHYS_PCI_IO + EXCITE_SIZE_PCI_IO - 1,
43                 .flags  = IORESOURCE_IO
44         };
45
46
47 static struct pci_controller bx_controller = {
48         .pci_ops        = &titan_pci_ops,
49         .mem_resource   = &mem_resource,
50         .mem_offset     = 0x00000000UL,
51         .io_resource    = &io_resource,
52         .io_offset      = 0x00000000UL
53 };
54
55
56 static char
57         iopage_failed[] __initdata   = "Cannot allocate PCI I/O page",
58         modebits_no_pci[] __initdata = "PCI is not configured in mode bits";
59
60 #define RM9000x2_OCD_HTSC       0x0604
61 #define RM9000x2_OCD_HTBHL      0x060c
62 #define RM9000x2_OCD_PCIHRST    0x078c
63
64 #define RM9K_OCD_MODEBIT1       0x00d4 /* (MODEBIT1) Mode Bit 1 */
65 #define RM9K_OCD_CPHDCR         0x00f4 /* CPU-PCI/HT Data Control. */
66
67 #define PCISC_FB2B              0x00000200
68 #define PCISC_MWICG             0x00000010
69 #define PCISC_EMC               0x00000004
70 #define PCISC_ERMA              0x00000002
71
72
73
74 static int __init basler_excite_pci_setup(void)
75 {
76         const unsigned int fullbars = memsize / (256 << 20);
77         unsigned int i;
78
79         /* Check modebits to see if PCI is really enabled. */
80         if (!((ocd_readl(RM9K_OCD_MODEBIT1) >> (47-32)) & 0x1))
81                 panic(modebits_no_pci);
82
83         if (NULL == request_mem_region(EXCITE_PHYS_PCI_IO, EXCITE_SIZE_PCI_IO,
84                                        "Memory-mapped PCI I/O page"))
85                 panic(iopage_failed);
86
87         /* Enable PCI 0 as master for config cycles */
88         ocd_writel(PCISC_EMC | PCISC_ERMA, RM9000x2_OCD_HTSC);
89
90
91         /* Set up latency timer */
92         ocd_writel(0x8008, RM9000x2_OCD_HTBHL);
93
94         /*  Setup host IO and Memory space */
95         ocd_writel((EXCITE_PHYS_PCI_IO >> 4) | 1, LKB7);
96         ocd_writel(((EXCITE_SIZE_PCI_IO >> 4) & 0x7fffff00) - 0x100, LKM7);
97         ocd_writel((EXCITE_PHYS_PCI_MEM >> 4) | 1, LKB8);
98         ocd_writel(((EXCITE_SIZE_PCI_MEM >> 4) & 0x7fffff00) - 0x100, LKM8);
99
100         /* Set up PCI BARs to map all installed memory */
101         for (i = 0; i < 6; i++) {
102                 const unsigned int bar = 0x610 + i * 4;
103
104                 if (i < fullbars) {
105                         ocd_writel(0x10000000 * i, bar);
106                         ocd_writel(0x01000000 * i, bar + 0x140);
107                         ocd_writel(0x0ffff029, bar + 0x100);
108                         continue;
109                 }
110
111                 if (i == fullbars) {
112                         int o;
113                         u32 mask;
114
115                         const unsigned long rem = memsize - i * 0x10000000;
116                         if (!rem) {
117                                 ocd_writel(0x00000000, bar + 0x100);
118                                 continue;
119                         }
120
121                         o = ffs(rem) - 1;
122                         if (rem & ~(0x1 << o))
123                                 o++;
124                         mask = ((0x1 << o) & 0x0ffff000) - 0x1000;
125                         ocd_writel(0x10000000 * i, bar);
126                         ocd_writel(0x01000000 * i, bar + 0x140);
127                         ocd_writel(0x00000029 | mask, bar + 0x100);
128                         continue;
129                 }
130
131                 ocd_writel(0x00000000, bar + 0x100);
132         }
133
134         /* Finally, enable the PCI interupt */
135 #if USB_IRQ > 7
136         set_c0_intcontrol(1 << USB_IRQ);
137 #else
138         set_c0_status(1 << (USB_IRQ + 8));
139 #endif
140
141         ioport_resource.start = EXCITE_PHYS_PCI_IO;
142         ioport_resource.end = EXCITE_PHYS_PCI_IO + EXCITE_SIZE_PCI_IO - 1;
143         set_io_port_base((unsigned long) ioremap_nocache(EXCITE_PHYS_PCI_IO, EXCITE_SIZE_PCI_IO));
144         register_pci_controller(&bx_controller);
145         return 0;
146 }
147
148
149 arch_initcall(basler_excite_pci_setup);