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, 1997, 2004, 05 by Ralf Baechle (ralf@linux-mips.org)
9 * Copyright (C) 2001, 2002, 2003 by Liam Davies (ldavies@agile.tv)
10 *
11 */
12#include <linux/init.h>
13#include <linux/interrupt.h>
14#include <linux/io.h>
15#include <linux/ioport.h>
16#include <linux/pm.h>
17
18#include <asm/bootinfo.h>
19#include <asm/reboot.h>
20#include <asm/setup.h>
21#include <asm/gt64120.h>
22
23#include <cobalt.h>
24
25extern void cobalt_machine_restart(char *command);
26extern void cobalt_machine_halt(void);
27
28const char *get_system_type(void)
29{
30	switch (cobalt_board_id) {
31		case COBALT_BRD_ID_QUBE1:
32			return "Cobalt Qube";
33		case COBALT_BRD_ID_RAQ1:
34			return "Cobalt RaQ";
35		case COBALT_BRD_ID_QUBE2:
36			return "Cobalt Qube2";
37		case COBALT_BRD_ID_RAQ2:
38			return "Cobalt RaQ2";
39	}
40	return "MIPS Cobalt";
41}
42
43/*
44 * Cobalt doesn't have PS/2 keyboard/mouse interfaces,
45 * keyboard conntroller is never used.
46 * Also PCI-ISA bridge DMA contoroller is never used.
47 */
48static struct resource cobalt_reserved_resources[] = {
49	{	/* dma1 */
50		.start	= 0x00,
51		.end	= 0x1f,
52		.name	= "reserved",
53		.flags	= IORESOURCE_BUSY | IORESOURCE_IO,
54	},
55	{	/* keyboard */
56		.start	= 0x60,
57		.end	= 0x6f,
58		.name	= "reserved",
59		.flags	= IORESOURCE_BUSY | IORESOURCE_IO,
60	},
61	{	/* dma page reg */
62		.start	= 0x80,
63		.end	= 0x8f,
64		.name	= "reserved",
65		.flags	= IORESOURCE_BUSY | IORESOURCE_IO,
66	},
67	{	/* dma2 */
68		.start	= 0xc0,
69		.end	= 0xdf,
70		.name	= "reserved",
71		.flags	= IORESOURCE_BUSY | IORESOURCE_IO,
72	},
73};
74
75void __init plat_mem_setup(void)
76{
77	int i;
78
79	_machine_restart = cobalt_machine_restart;
80	_machine_halt = cobalt_machine_halt;
81	pm_power_off = cobalt_machine_halt;
82
83	set_io_port_base(CKSEG1ADDR(GT_DEF_PCI0_IO_BASE));
84
85	/* I/O port resource */
86	ioport_resource.end = 0x01ffffff;
87
88	/* These resources have been reserved by VIA SuperI/O chip. */
89	for (i = 0; i < ARRAY_SIZE(cobalt_reserved_resources); i++)
90		request_resource(&ioport_resource, cobalt_reserved_resources + i);
91}
92
93/*
94 * Prom init. We read our one and only communication with the firmware.
95 * Grab the amount of installed memory.
96 * Better boot loaders (CoLo) pass a command line too :-)
97 */
98
99void __init prom_init(void)
100{
101	unsigned long memsz;
102	int argc, i;
103	char **argv;
104
105	memsz = fw_arg0 & 0x7fff0000;
106	argc = fw_arg0 & 0x0000ffff;
107	argv = (char **)fw_arg1;
108
109	for (i = 1; i < argc; i++) {
110		strlcat(arcs_cmdline, argv[i], COMMAND_LINE_SIZE);
111		if (i < (argc - 1))
112			strlcat(arcs_cmdline, " ", COMMAND_LINE_SIZE);
113	}
114
115	add_memory_region(0x0, memsz, BOOT_MEM_RAM);
116
117	setup_8250_early_printk_port(CKSEG1ADDR(0x1c800000), 0, 0);
118}
119
120void __init prom_free_prom_memory(void)
121{
122	/* Nothing to do! */
123}
124