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
26unsigned int sni_brd_type;
27
28extern void sni_machine_restart(char *command);
29extern void sni_machine_halt(void);
30extern void sni_machine_power_off(void);
31
32static 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
52void __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
102static 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
119DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_CIRRUS, PCI_DEVICE_ID_CIRRUS_5434_8,
120                        quirk_cirrus_ram_size);
121DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_CIRRUS, PCI_DEVICE_ID_CIRRUS_5436,
122                        quirk_cirrus_ram_size);
123DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_CIRRUS, PCI_DEVICE_ID_CIRRUS_5446,
124                        quirk_cirrus_ram_size);
125#endif
126