e8b26bdee24cf94f353ec2c56a15fbd6848e56e1
[linux-2.6.git] / arch / mips / sni / setup.c
1 /*
2  * Setup pointers to hardware-dependent routines.
3  *
4  * This file is subject to the terms and conditions of the GNU General Public
5  * License.  See the file "COPYING" in the main directory of this archive
6  * for more details.
7  *
8  * Copyright (C) 1996, 97, 98, 2000, 03, 04, 06 Ralf Baechle (ralf@linux-mips.org)
9  * Copyright (C) 2006,2007 Thomas Bogendoerfer (tsbogend@alpha.franken.de)
10  */
11 #include <linux/eisa.h>
12 #include <linux/init.h>
13 #include <linux/console.h>
14 #include <linux/fb.h>
15 #include <linux/screen_info.h>
16
17 #ifdef CONFIG_ARC
18 #include <asm/fw/arc/types.h>
19 #include <asm/sgialib.h>
20 #endif
21
22 #include <asm/io.h>
23 #include <asm/reboot.h>
24 #include <asm/sni.h>
25
26 unsigned int sni_brd_type;
27
28 extern void sni_machine_restart(char *command);
29 extern void sni_machine_power_off(void);
30
31 static void __init sni_display_setup(void)
32 {
33 #if defined(CONFIG_VT) && defined(CONFIG_VGA_CONSOLE) && defined(CONFIG_ARC)
34         struct screen_info *si = &screen_info;
35         DISPLAY_STATUS *di;
36
37         di = ArcGetDisplayStatus(1);
38
39         if (di) {
40                 si->orig_x              = di->CursorXPosition;
41                 si->orig_y              = di->CursorYPosition;
42                 si->orig_video_cols     = di->CursorMaxXPosition;
43                 si->orig_video_lines    = di->CursorMaxYPosition;
44                 si->orig_video_isVGA    = VIDEO_TYPE_VGAC;
45                 si->orig_video_points   = 16;
46         }
47 #endif
48 }
49
50
51 void __init plat_mem_setup(void)
52 {
53         set_io_port_base(SNI_PORT_BASE);
54 //      ioport_resource.end = sni_io_resource.end;
55
56         /*
57          * Setup (E)ISA I/O memory access stuff
58          */
59         isa_slot_offset = 0xb0000000;
60 #ifdef CONFIG_EISA
61         EISA_bus = 1;
62 #endif
63
64         switch (sni_brd_type) {
65         case SNI_BRD_10:
66         case SNI_BRD_10NEW:
67         case SNI_BRD_TOWER_OASIC:
68         case SNI_BRD_MINITOWER:
69                 sni_a20r_init();
70                 break;
71
72         case SNI_BRD_PCI_TOWER:
73         case SNI_BRD_PCI_TOWER_CPLUS:
74                 sni_pcit_init();
75                 break;
76
77         case SNI_BRD_RM200:
78                 sni_rm200_init();
79                 break;
80
81         case SNI_BRD_PCI_MTOWER:
82         case SNI_BRD_PCI_DESKTOP:
83         case SNI_BRD_PCI_MTOWER_CPLUS:
84                 sni_pcimt_init();
85                 break;
86         }
87
88         _machine_restart = sni_machine_restart;
89         pm_power_off = sni_machine_power_off;
90
91         sni_display_setup();
92 }
93
94 #if CONFIG_PCI
95
96 #include <linux/pci.h>
97 #include <video/vga.h>
98 #include <video/cirrus.h>
99
100 static void __devinit quirk_cirrus_ram_size(struct pci_dev *dev)
101 {
102         u16 cmd;
103
104         /*
105          * firmware doesn't set the ram size correct, so we
106          * need to do it here, otherwise we get screen corruption
107          * on older Cirrus chips
108          */
109         pci_read_config_word(dev, PCI_COMMAND, &cmd);
110         if ((cmd & (PCI_COMMAND_IO|PCI_COMMAND_MEMORY))
111                 == (PCI_COMMAND_IO|PCI_COMMAND_MEMORY)) {
112                 vga_wseq(NULL, CL_SEQR6, 0x12); /* unlock all extension registers */
113                 vga_wseq(NULL, CL_SEQRF, 0x18);
114         }
115 }
116
117 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_CIRRUS, PCI_DEVICE_ID_CIRRUS_5434_8,
118                         quirk_cirrus_ram_size);
119 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_CIRRUS, PCI_DEVICE_ID_CIRRUS_5436,
120                         quirk_cirrus_ram_size);
121 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_CIRRUS, PCI_DEVICE_ID_CIRRUS_5446,
122                         quirk_cirrus_ram_size);
123 #endif