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/memblock.h> |
17 | #include <linux/pm.h> |
18 | |
19 | #include <asm/bootinfo.h> |
20 | #include <asm/reboot.h> |
21 | #include <asm/setup.h> |
22 | #include <asm/gt64120.h> |
23 | |
24 | #include <cobalt.h> |
25 | |
26 | const char *get_system_type(void) |
27 | { |
28 | switch (cobalt_board_id) { |
29 | case COBALT_BRD_ID_QUBE1: |
30 | return "Cobalt Qube" ; |
31 | case COBALT_BRD_ID_RAQ1: |
32 | return "Cobalt RaQ" ; |
33 | case COBALT_BRD_ID_QUBE2: |
34 | return "Cobalt Qube2" ; |
35 | case COBALT_BRD_ID_RAQ2: |
36 | return "Cobalt RaQ2" ; |
37 | } |
38 | return "MIPS Cobalt" ; |
39 | } |
40 | |
41 | /* |
42 | * Cobalt doesn't have PS/2 keyboard/mouse interfaces, |
43 | * keyboard controller is never used. |
44 | * Also PCI-ISA bridge DMA controller is never used. |
45 | */ |
46 | static struct resource cobalt_reserved_resources[] = { |
47 | { /* dma1 */ |
48 | .start = 0x00, |
49 | .end = 0x1f, |
50 | .name = "reserved" , |
51 | .flags = IORESOURCE_BUSY | IORESOURCE_IO, |
52 | }, |
53 | { /* keyboard */ |
54 | .start = 0x60, |
55 | .end = 0x6f, |
56 | .name = "reserved" , |
57 | .flags = IORESOURCE_BUSY | IORESOURCE_IO, |
58 | }, |
59 | { /* dma page reg */ |
60 | .start = 0x80, |
61 | .end = 0x8f, |
62 | .name = "reserved" , |
63 | .flags = IORESOURCE_BUSY | IORESOURCE_IO, |
64 | }, |
65 | { /* dma2 */ |
66 | .start = 0xc0, |
67 | .end = 0xdf, |
68 | .name = "reserved" , |
69 | .flags = IORESOURCE_BUSY | IORESOURCE_IO, |
70 | }, |
71 | }; |
72 | |
73 | void __init plat_mem_setup(void) |
74 | { |
75 | int i; |
76 | |
77 | _machine_restart = cobalt_machine_restart; |
78 | _machine_halt = cobalt_machine_halt; |
79 | pm_power_off = cobalt_machine_halt; |
80 | |
81 | set_io_port_base(CKSEG1ADDR(GT_DEF_PCI0_IO_BASE)); |
82 | |
83 | /* I/O port resource */ |
84 | ioport_resource.end = 0x01ffffff; |
85 | |
86 | /* These resources have been reserved by VIA SuperI/O chip. */ |
87 | for (i = 0; i < ARRAY_SIZE(cobalt_reserved_resources); i++) |
88 | request_resource(root: &ioport_resource, new: cobalt_reserved_resources + i); |
89 | } |
90 | |
91 | /* |
92 | * Prom init. We read our one and only communication with the firmware. |
93 | * Grab the amount of installed memory. |
94 | * Better boot loaders (CoLo) pass a command line too :-) |
95 | */ |
96 | |
97 | void __init prom_init(void) |
98 | { |
99 | unsigned long memsz; |
100 | int argc, i; |
101 | char **argv; |
102 | |
103 | memsz = fw_arg0 & 0x7fff0000; |
104 | argc = fw_arg0 & 0x0000ffff; |
105 | argv = (char **)fw_arg1; |
106 | |
107 | for (i = 1; i < argc; i++) { |
108 | strlcat(p: arcs_cmdline, q: argv[i], COMMAND_LINE_SIZE); |
109 | if (i < (argc - 1)) |
110 | strlcat(p: arcs_cmdline, q: " " , COMMAND_LINE_SIZE); |
111 | } |
112 | |
113 | memblock_add(base: 0, size: memsz); |
114 | |
115 | setup_8250_early_printk_port(CKSEG1ADDR(0x1c800000), 0, 0); |
116 | } |
117 | |