Commit | Line | Data |
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1da177e4 LT |
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 | * | |
fcdb27ad | 8 | * Copyright (C) 1996, 1997, 2004, 05 by Ralf Baechle (ralf@linux-mips.org) |
1da177e4 LT |
9 | * Copyright (C) 2001, 2002, 2003 by Liam Davies (ldavies@agile.tv) |
10 | * | |
11 | */ | |
1da177e4 | 12 | #include <linux/interrupt.h> |
1da177e4 | 13 | #include <linux/init.h> |
fcdb27ad | 14 | #include <linux/pm.h> |
1da177e4 LT |
15 | |
16 | #include <asm/bootinfo.h> | |
17 | #include <asm/time.h> | |
18 | #include <asm/io.h> | |
1da177e4 LT |
19 | #include <asm/reboot.h> |
20 | #include <asm/gt64120.h> | |
21 | ||
cc50b67d | 22 | #include <cobalt.h> |
1da177e4 LT |
23 | |
24 | extern void cobalt_machine_restart(char *command); | |
25 | extern void cobalt_machine_halt(void); | |
26 | extern void cobalt_machine_power_off(void); | |
27 | ||
1da177e4 LT |
28 | const char *get_system_type(void) |
29 | { | |
c4ed38a0 RB |
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 | } | |
1da177e4 LT |
40 | return "MIPS Cobalt"; |
41 | } | |
42 | ||
54d0a216 | 43 | void __init plat_timer_setup(struct irqaction *irq) |
1da177e4 | 44 | { |
5c90d528 | 45 | /* Load timer value for HZ (TCLK is 50MHz) */ |
56ae5833 | 46 | GT_WRITE(GT_TC0_OFS, 50*1000*1000 / HZ); |
1da177e4 | 47 | |
c4ed38a0 | 48 | /* Enable timer */ |
56ae5833 | 49 | GT_WRITE(GT_TC_CONTROL_OFS, GT_TC_CONTROL_ENTC0_MSK | GT_TC_CONTROL_SELTC0_MSK); |
1da177e4 | 50 | |
c4ed38a0 RB |
51 | /* Register interrupt */ |
52 | setup_irq(COBALT_GALILEO_IRQ, irq); | |
53 | ||
54 | /* Enable interrupt */ | |
56ae5833 | 55 | GT_WRITE(GT_INTRMASK_OFS, GT_INTR_T0EXP_MSK | GT_READ(GT_INTRMASK_OFS)); |
1da177e4 LT |
56 | } |
57 | ||
47d7c44b YY |
58 | /* |
59 | * Cobalt doesn't have PS/2 keyboard/mouse interfaces, | |
60 | * keyboard conntroller is never used. | |
61 | * Also PCI-ISA bridge DMA contoroller is never used. | |
62 | */ | |
63 | static struct resource cobalt_reserved_resources[] = { | |
64 | { /* dma1 */ | |
5e46c3ae RB |
65 | .start = 0x00, |
66 | .end = 0x1f, | |
47d7c44b YY |
67 | .name = "reserved", |
68 | .flags = IORESOURCE_BUSY | IORESOURCE_IO, | |
69 | }, | |
70 | { /* keyboard */ | |
5e46c3ae RB |
71 | .start = 0x60, |
72 | .end = 0x6f, | |
47d7c44b YY |
73 | .name = "reserved", |
74 | .flags = IORESOURCE_BUSY | IORESOURCE_IO, | |
75 | }, | |
76 | { /* dma page reg */ | |
5e46c3ae RB |
77 | .start = 0x80, |
78 | .end = 0x8f, | |
47d7c44b YY |
79 | .name = "reserved", |
80 | .flags = IORESOURCE_BUSY | IORESOURCE_IO, | |
81 | }, | |
82 | { /* dma2 */ | |
5e46c3ae RB |
83 | .start = 0xc0, |
84 | .end = 0xdf, | |
47d7c44b YY |
85 | .name = "reserved", |
86 | .flags = IORESOURCE_BUSY | IORESOURCE_IO, | |
5e46c3ae | 87 | }, |
1da177e4 LT |
88 | }; |
89 | ||
2925aba4 | 90 | void __init plat_mem_setup(void) |
1da177e4 | 91 | { |
1da177e4 LT |
92 | int i; |
93 | ||
94 | _machine_restart = cobalt_machine_restart; | |
95 | _machine_halt = cobalt_machine_halt; | |
fcdb27ad | 96 | pm_power_off = cobalt_machine_power_off; |
1da177e4 | 97 | |
56ae5833 | 98 | set_io_port_base(CKSEG1ADDR(GT_DEF_PCI0_IO_BASE)); |
c4ed38a0 | 99 | |
0cfd5267 | 100 | /* I/O port resource must include LCD/buttons */ |
c4ed38a0 | 101 | ioport_resource.end = 0x0fffffff; |
1da177e4 | 102 | |
47d7c44b YY |
103 | /* These resources have been reserved by VIA SuperI/O chip. */ |
104 | for (i = 0; i < ARRAY_SIZE(cobalt_reserved_resources); i++) | |
105 | request_resource(&ioport_resource, cobalt_reserved_resources + i); | |
1da177e4 LT |
106 | } |
107 | ||
1da177e4 LT |
108 | /* |
109 | * Prom init. We read our one and only communication with the firmware. | |
c4ed38a0 RB |
110 | * Grab the amount of installed memory. |
111 | * Better boot loaders (CoLo) pass a command line too :-) | |
1da177e4 LT |
112 | */ |
113 | ||
114 | void __init prom_init(void) | |
115 | { | |
c4ed38a0 RB |
116 | int narg, indx, posn, nchr; |
117 | unsigned long memsz; | |
118 | char **argv; | |
1da177e4 LT |
119 | |
120 | mips_machgroup = MACH_GROUP_COBALT; | |
121 | ||
c4ed38a0 RB |
122 | memsz = fw_arg0 & 0x7fff0000; |
123 | narg = fw_arg0 & 0x0000ffff; | |
124 | ||
125 | if (narg) { | |
126 | arcs_cmdline[0] = '\0'; | |
127 | argv = (char **) fw_arg1; | |
128 | posn = 0; | |
129 | for (indx = 1; indx < narg; ++indx) { | |
130 | nchr = strlen(argv[indx]); | |
131 | if (posn + 1 + nchr + 1 > sizeof(arcs_cmdline)) | |
132 | break; | |
133 | if (posn) | |
134 | arcs_cmdline[posn++] = ' '; | |
135 | strcpy(arcs_cmdline + posn, argv[indx]); | |
136 | posn += nchr; | |
137 | } | |
138 | } | |
139 | ||
140 | add_memory_region(0x0, memsz, BOOT_MEM_RAM); | |
1da177e4 LT |
141 | } |
142 | ||
c44e8d5e | 143 | void __init prom_free_prom_memory(void) |
1da177e4 LT |
144 | { |
145 | /* Nothing to do! */ | |
1da177e4 | 146 | } |