Merge git://git.kernel.org/pub/scm/linux/kernel/git/wim/linux-2.6-watchdog
[linux-2.6] / 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/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_halt(void);
30 extern void sni_machine_power_off(void);
31
32 static void __init sni_display_setup(void)
33 {
34 #if defined(CONFIG_VT) && defined(CONFIG_VGA_CONSOLE) && defined(CONFIG_ARC)
35         struct screen_info *si = &screen_info;
36         DISPLAY_STATUS *di;
37
38         di = ArcGetDisplayStatus(1);
39
40         if (di) {
41                 si->orig_x              = di->CursorXPosition;
42                 si->orig_y              = di->CursorYPosition;
43                 si->orig_video_cols     = di->CursorMaxXPosition;
44                 si->orig_video_lines    = di->CursorMaxYPosition;
45                 si->orig_video_isVGA    = VIDEO_TYPE_VGAC;
46                 si->orig_video_points   = 16;
47         }
48 #endif
49 }
50
51
52 void __init plat_mem_setup(void)
53 {
54         set_io_port_base(SNI_PORT_BASE);
55 //      ioport_resource.end = sni_io_resource.end;
56
57         /*
58          * Setup (E)ISA I/O memory access stuff
59          */
60         isa_slot_offset = 0xb0000000;
61 #ifdef CONFIG_EISA
62         EISA_bus = 1;
63 #endif
64
65         switch (sni_brd_type) {
66         case SNI_BRD_10:
67         case SNI_BRD_10NEW:
68         case SNI_BRD_TOWER_OASIC:
69         case SNI_BRD_MINITOWER:
70                 sni_a20r_init();
71                 break;
72
73         case SNI_BRD_PCI_TOWER:
74         case SNI_BRD_PCI_TOWER_CPLUS:
75                 sni_pcit_init();
76                 break;
77
78         case SNI_BRD_RM200:
79                 sni_rm200_init();
80                 break;
81
82         case SNI_BRD_PCI_MTOWER:
83         case SNI_BRD_PCI_DESKTOP:
84         case SNI_BRD_PCI_MTOWER_CPLUS:
85                 sni_pcimt_init();
86                 break;
87         }
88
89         _machine_restart = sni_machine_restart;
90         _machine_halt = sni_machine_halt;
91         pm_power_off = sni_machine_power_off;
92
93         sni_display_setup();
94 }
95
96 #if CONFIG_PCI
97
98 #include <linux/pci.h>
99 #include <video/vga.h>
100 #include <video/cirrus.h>
101
102 static void __devinit quirk_cirrus_ram_size(struct pci_dev *dev)
103 {
104         u16 cmd;
105
106         /*
107          * firmware doesn't set the ram size correct, so we
108          * need to do it here, otherwise we get screen corruption
109          * on older Cirrus chips
110          */
111         pci_read_config_word (dev, PCI_COMMAND, &cmd);
112         if ((cmd & (PCI_COMMAND_IO|PCI_COMMAND_MEMORY))
113                 == (PCI_COMMAND_IO|PCI_COMMAND_MEMORY)) {
114                 vga_wseq (NULL, CL_SEQR6, 0x12);        /* unlock all extension registers */
115                 vga_wseq (NULL, CL_SEQRF, 0x18);
116         }
117 }
118
119 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_CIRRUS, PCI_DEVICE_ID_CIRRUS_5434_8,
120                         quirk_cirrus_ram_size);
121 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_CIRRUS, PCI_DEVICE_ID_CIRRUS_5436,
122                         quirk_cirrus_ram_size);
123 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_CIRRUS, PCI_DEVICE_ID_CIRRUS_5446,
124                         quirk_cirrus_ram_size);
125 #endif