2 * Setup pointers to hardware-dependent routines.
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
8 * Copyright (C) 1996, 97, 98, 2000, 03, 04, 06 Ralf Baechle (ralf@linux-mips.org)
10 #include <linux/config.h>
11 #include <linux/eisa.h>
12 #include <linux/hdreg.h>
13 #include <linux/ioport.h>
14 #include <linux/sched.h>
15 #include <linux/init.h>
16 #include <linux/interrupt.h>
17 #include <linux/mc146818rtc.h>
19 #include <linux/pci.h>
20 #include <linux/console.h>
22 #include <linux/tty.h>
24 #include <asm/arc/types.h>
25 #include <asm/sgialib.h>
26 #include <asm/bcache.h>
27 #include <asm/bootinfo.h>
30 #include <asm/mc146818-time.h>
31 #include <asm/processor.h>
32 #include <asm/ptrace.h>
33 #include <asm/reboot.h>
36 #include <asm/traps.h>
38 extern void sni_machine_restart(char *command
);
39 extern void sni_machine_halt(void);
40 extern void sni_machine_power_off(void);
42 static void __init
sni_rm200_pci_timer_setup(struct irqaction
*irq
)
44 /* set the clock to 100 Hz */
45 outb_p(0x34,0x43); /* binary, mode 2, LSB/MSB, ch 0 */
46 outb_p(LATCH
& 0xff , 0x40); /* LSB */
47 outb(LATCH
>> 8 , 0x40); /* MSB */
52 * A bit more gossip about the iron we're running on ...
54 static inline void sni_pcimt_detect(void)
61 csmsr
= *(volatile unsigned char *)PCIMT_CSMSR
;
63 p
+= sprintf(p
, "%s PCI", (csmsr
& 0x80) ? "RM200" : "RM300");
64 if ((csmsr
& 0x80) == 0)
65 p
+= sprintf(p
, ", board revision %s",
66 (csmsr
& 0x20) ? "D" : "C");
68 asic
= (csmsr
& 0x08) ? asic
: !asic
;
69 p
+= sprintf(p
, ", ASIC PCI Rev %s", asic
? "1.0" : "1.1");
70 printk("%s.\n", boardtype
);
73 static void __init
sni_display_setup(void)
76 #if defined(CONFIG_VGA_CONSOLE)
77 struct screen_info
*si
= &screen_info
;
80 di
= ArcGetDisplayStatus(1);
83 si
->orig_x
= di
->CursorXPosition
;
84 si
->orig_y
= di
->CursorYPosition
;
85 si
->orig_video_cols
= di
->CursorMaxXPosition
;
86 si
->orig_video_lines
= di
->CursorMaxYPosition
;
87 si
->orig_video_isVGA
= VIDEO_TYPE_VGAC
;
88 si
->orig_video_points
= 16;
94 static struct resource sni_io_resource
= {
95 .start
= 0x00001000UL
,
97 .name
= "PCIMT IO MEM",
98 .flags
= IORESOURCE_IO
,
101 static struct resource pcimt_io_resources
[] = {
106 .flags
= IORESOURCE_BUSY
111 .flags
= IORESOURCE_BUSY
116 .flags
= IORESOURCE_BUSY
120 .name
= "dma page reg",
121 .flags
= IORESOURCE_BUSY
126 .flags
= IORESOURCE_BUSY
130 .name
= "PCI config data",
131 .flags
= IORESOURCE_BUSY
135 static struct resource sni_mem_resource
= {
136 .start
= 0x10000000UL
,
138 .name
= "PCIMT PCI MEM",
139 .flags
= IORESOURCE_MEM
143 * The RM200/RM300 has a few holes in it's PCI/EISA memory address space used
144 * for other purposes. Be paranoid and allocate all of the before the PCI
145 * code gets a chance to to map anything else there ...
147 * This leaves the following areas available:
149 * 0x10000000 - 0x1009ffff (640kB) PCI/EISA/ISA Bus Memory
150 * 0x10100000 - 0x13ffffff ( 15MB) PCI/EISA/ISA Bus Memory
151 * 0x18000000 - 0x1fbfffff (124MB) PCI/EISA Bus Memory
152 * 0x1ff08000 - 0x1ffeffff (816kB) PCI/EISA Bus Memory
153 * 0xa0000000 - 0xffffffff (1.5GB) PCI/EISA Bus Memory
155 static struct resource pcimt_mem_resources
[] = {
159 .name
= "Video RAM area",
160 .flags
= IORESOURCE_BUSY
164 .name
= "ISA Reserved",
165 .flags
= IORESOURCE_BUSY
170 .flags
= IORESOURCE_BUSY
174 .name
= "Cache Replacement Area",
175 .flags
= IORESOURCE_BUSY
179 .name
= "PCI INT Acknowledge",
180 .flags
= IORESOURCE_BUSY
185 .flags
= IORESOURCE_BUSY
190 .flags
= IORESOURCE_BUSY
195 .flags
= IORESOURCE_BUSY
200 .flags
= IORESOURCE_BUSY
204 .name
= "NVRAM / EEPROM",
205 .flags
= IORESOURCE_BUSY
210 .flags
= IORESOURCE_BUSY
215 .flags
= IORESOURCE_BUSY
219 .name
= "Main Memory",
220 .flags
= IORESOURCE_BUSY
224 static void __init
sni_resource_init(void)
228 /* request I/O space for devices used on all i[345]86 PCs */
229 for (i
= 0; i
< ARRAY_SIZE(pcimt_io_resources
); i
++)
230 request_resource(&ioport_resource
, pcimt_io_resources
+ i
);
232 /* request mem space for pcimt-specific devices */
233 for (i
= 0; i
< ARRAY_SIZE(pcimt_mem_resources
); i
++)
234 request_resource(&sni_mem_resource
, pcimt_mem_resources
+ i
);
236 ioport_resource
.end
= sni_io_resource
.end
;
239 extern struct pci_ops sni_pci_ops
;
241 static struct pci_controller sni_controller
= {
242 .pci_ops
= &sni_pci_ops
,
243 .mem_resource
= &sni_mem_resource
,
244 .mem_offset
= 0x10000000UL
,
245 .io_resource
= &sni_io_resource
,
246 .io_offset
= 0x00000000UL
249 static inline void sni_pcimt_time_init(void)
251 rtc_mips_get_time
= mc146818_get_cmos_time
;
252 rtc_mips_set_time
= mc146818_set_rtc_mmss
;
255 void __init
plat_setup(void)
259 sni_pcimt_time_init();
261 set_io_port_base(SNI_PORT_BASE
);
262 ioport_resource
.end
= sni_io_resource
.end
;
265 * Setup (E)ISA I/O memory access stuff
267 isa_slot_offset
= 0xb0000000;
273 board_timer_setup
= sni_rm200_pci_timer_setup
;
275 _machine_restart
= sni_machine_restart
;
276 _machine_halt
= sni_machine_halt
;
277 pm_power_off
= sni_machine_power_off
;
282 register_pci_controller(&sni_controller
);