1*4882a593Smuzhiyun /*
2*4882a593Smuzhiyun * Setup pointers to hardware dependent routines.
3*4882a593Smuzhiyun *
4*4882a593Smuzhiyun * This file is subject to the terms and conditions of the GNU General Public
5*4882a593Smuzhiyun * License. See the file "COPYING" in the main directory of this archive
6*4882a593Smuzhiyun * for more details.
7*4882a593Smuzhiyun *
8*4882a593Smuzhiyun * Copyright (C) 1996, 1997, 2004, 05 by Ralf Baechle (ralf@linux-mips.org)
9*4882a593Smuzhiyun * Copyright (C) 2001, 2002, 2003 by Liam Davies (ldavies@agile.tv)
10*4882a593Smuzhiyun *
11*4882a593Smuzhiyun */
12*4882a593Smuzhiyun #include <linux/init.h>
13*4882a593Smuzhiyun #include <linux/interrupt.h>
14*4882a593Smuzhiyun #include <linux/io.h>
15*4882a593Smuzhiyun #include <linux/ioport.h>
16*4882a593Smuzhiyun #include <linux/memblock.h>
17*4882a593Smuzhiyun #include <linux/pm.h>
18*4882a593Smuzhiyun
19*4882a593Smuzhiyun #include <asm/bootinfo.h>
20*4882a593Smuzhiyun #include <asm/reboot.h>
21*4882a593Smuzhiyun #include <asm/setup.h>
22*4882a593Smuzhiyun #include <asm/gt64120.h>
23*4882a593Smuzhiyun
24*4882a593Smuzhiyun #include <cobalt.h>
25*4882a593Smuzhiyun
26*4882a593Smuzhiyun extern void cobalt_machine_restart(char *command);
27*4882a593Smuzhiyun extern void cobalt_machine_halt(void);
28*4882a593Smuzhiyun
get_system_type(void)29*4882a593Smuzhiyun const char *get_system_type(void)
30*4882a593Smuzhiyun {
31*4882a593Smuzhiyun switch (cobalt_board_id) {
32*4882a593Smuzhiyun case COBALT_BRD_ID_QUBE1:
33*4882a593Smuzhiyun return "Cobalt Qube";
34*4882a593Smuzhiyun case COBALT_BRD_ID_RAQ1:
35*4882a593Smuzhiyun return "Cobalt RaQ";
36*4882a593Smuzhiyun case COBALT_BRD_ID_QUBE2:
37*4882a593Smuzhiyun return "Cobalt Qube2";
38*4882a593Smuzhiyun case COBALT_BRD_ID_RAQ2:
39*4882a593Smuzhiyun return "Cobalt RaQ2";
40*4882a593Smuzhiyun }
41*4882a593Smuzhiyun return "MIPS Cobalt";
42*4882a593Smuzhiyun }
43*4882a593Smuzhiyun
44*4882a593Smuzhiyun /*
45*4882a593Smuzhiyun * Cobalt doesn't have PS/2 keyboard/mouse interfaces,
46*4882a593Smuzhiyun * keyboard controller is never used.
47*4882a593Smuzhiyun * Also PCI-ISA bridge DMA controller is never used.
48*4882a593Smuzhiyun */
49*4882a593Smuzhiyun static struct resource cobalt_reserved_resources[] = {
50*4882a593Smuzhiyun { /* dma1 */
51*4882a593Smuzhiyun .start = 0x00,
52*4882a593Smuzhiyun .end = 0x1f,
53*4882a593Smuzhiyun .name = "reserved",
54*4882a593Smuzhiyun .flags = IORESOURCE_BUSY | IORESOURCE_IO,
55*4882a593Smuzhiyun },
56*4882a593Smuzhiyun { /* keyboard */
57*4882a593Smuzhiyun .start = 0x60,
58*4882a593Smuzhiyun .end = 0x6f,
59*4882a593Smuzhiyun .name = "reserved",
60*4882a593Smuzhiyun .flags = IORESOURCE_BUSY | IORESOURCE_IO,
61*4882a593Smuzhiyun },
62*4882a593Smuzhiyun { /* dma page reg */
63*4882a593Smuzhiyun .start = 0x80,
64*4882a593Smuzhiyun .end = 0x8f,
65*4882a593Smuzhiyun .name = "reserved",
66*4882a593Smuzhiyun .flags = IORESOURCE_BUSY | IORESOURCE_IO,
67*4882a593Smuzhiyun },
68*4882a593Smuzhiyun { /* dma2 */
69*4882a593Smuzhiyun .start = 0xc0,
70*4882a593Smuzhiyun .end = 0xdf,
71*4882a593Smuzhiyun .name = "reserved",
72*4882a593Smuzhiyun .flags = IORESOURCE_BUSY | IORESOURCE_IO,
73*4882a593Smuzhiyun },
74*4882a593Smuzhiyun };
75*4882a593Smuzhiyun
plat_mem_setup(void)76*4882a593Smuzhiyun void __init plat_mem_setup(void)
77*4882a593Smuzhiyun {
78*4882a593Smuzhiyun int i;
79*4882a593Smuzhiyun
80*4882a593Smuzhiyun _machine_restart = cobalt_machine_restart;
81*4882a593Smuzhiyun _machine_halt = cobalt_machine_halt;
82*4882a593Smuzhiyun pm_power_off = cobalt_machine_halt;
83*4882a593Smuzhiyun
84*4882a593Smuzhiyun set_io_port_base(CKSEG1ADDR(GT_DEF_PCI0_IO_BASE));
85*4882a593Smuzhiyun
86*4882a593Smuzhiyun /* I/O port resource */
87*4882a593Smuzhiyun ioport_resource.end = 0x01ffffff;
88*4882a593Smuzhiyun
89*4882a593Smuzhiyun /* These resources have been reserved by VIA SuperI/O chip. */
90*4882a593Smuzhiyun for (i = 0; i < ARRAY_SIZE(cobalt_reserved_resources); i++)
91*4882a593Smuzhiyun request_resource(&ioport_resource, cobalt_reserved_resources + i);
92*4882a593Smuzhiyun }
93*4882a593Smuzhiyun
94*4882a593Smuzhiyun /*
95*4882a593Smuzhiyun * Prom init. We read our one and only communication with the firmware.
96*4882a593Smuzhiyun * Grab the amount of installed memory.
97*4882a593Smuzhiyun * Better boot loaders (CoLo) pass a command line too :-)
98*4882a593Smuzhiyun */
99*4882a593Smuzhiyun
prom_init(void)100*4882a593Smuzhiyun void __init prom_init(void)
101*4882a593Smuzhiyun {
102*4882a593Smuzhiyun unsigned long memsz;
103*4882a593Smuzhiyun int argc, i;
104*4882a593Smuzhiyun char **argv;
105*4882a593Smuzhiyun
106*4882a593Smuzhiyun memsz = fw_arg0 & 0x7fff0000;
107*4882a593Smuzhiyun argc = fw_arg0 & 0x0000ffff;
108*4882a593Smuzhiyun argv = (char **)fw_arg1;
109*4882a593Smuzhiyun
110*4882a593Smuzhiyun for (i = 1; i < argc; i++) {
111*4882a593Smuzhiyun strlcat(arcs_cmdline, argv[i], COMMAND_LINE_SIZE);
112*4882a593Smuzhiyun if (i < (argc - 1))
113*4882a593Smuzhiyun strlcat(arcs_cmdline, " ", COMMAND_LINE_SIZE);
114*4882a593Smuzhiyun }
115*4882a593Smuzhiyun
116*4882a593Smuzhiyun memblock_add(0, memsz);
117*4882a593Smuzhiyun
118*4882a593Smuzhiyun setup_8250_early_printk_port(CKSEG1ADDR(0x1c800000), 0, 0);
119*4882a593Smuzhiyun }
120*4882a593Smuzhiyun
prom_free_prom_memory(void)121*4882a593Smuzhiyun void __init prom_free_prom_memory(void)
122*4882a593Smuzhiyun {
123*4882a593Smuzhiyun /* Nothing to do! */
124*4882a593Smuzhiyun }
125