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/eisa.h>
11 #include <linux/hdreg.h>
12 #include <linux/ioport.h>
13 #include <linux/sched.h>
14 #include <linux/init.h>
15 #include <linux/interrupt.h>
16 #include <linux/mc146818rtc.h>
18 #include <linux/pci.h>
19 #include <linux/console.h>
21 #include <linux/screen_info.h>
24 #include <asm/arc/types.h>
25 #include <asm/sgialib.h>
28 #include <asm/bcache.h>
29 #include <asm/bootinfo.h>
32 #include <asm/mc146818-time.h>
33 #include <asm/processor.h>
34 #include <asm/reboot.h>
37 #include <asm/traps.h>
39 extern void sni_machine_restart(char *command
);
40 extern void sni_machine_halt(void);
41 extern void sni_machine_power_off(void);
43 void __init
plat_timer_setup(struct irqaction
*irq
)
45 /* set the clock to 100 Hz */
46 outb_p(0x34,0x43); /* binary, mode 2, LSB/MSB, ch 0 */
47 outb_p(LATCH
& 0xff , 0x40); /* LSB */
48 outb(LATCH
>> 8 , 0x40); /* MSB */
53 * A bit more gossip about the iron we're running on ...
55 static inline void sni_pcimt_detect(void)
62 csmsr
= *(volatile unsigned char *)PCIMT_CSMSR
;
64 p
+= sprintf(p
, "%s PCI", (csmsr
& 0x80) ? "RM200" : "RM300");
65 if ((csmsr
& 0x80) == 0)
66 p
+= sprintf(p
, ", board revision %s",
67 (csmsr
& 0x20) ? "D" : "C");
69 asic
= (csmsr
& 0x08) ? asic
: !asic
;
70 p
+= sprintf(p
, ", ASIC PCI Rev %s", asic
? "1.0" : "1.1");
71 printk("%s.\n", boardtype
);
74 static void __init
sni_display_setup(void)
76 #if defined(CONFIG_VT) && defined(CONFIG_VGA_CONSOLE) && defined(CONFIG_ARC)
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;
93 static struct resource sni_io_resource
= {
94 .start
= 0x00001000UL
,
96 .name
= "PCIMT IO MEM",
97 .flags
= IORESOURCE_IO
,
100 static struct resource pcimt_io_resources
[] = {
105 .flags
= IORESOURCE_BUSY
110 .flags
= IORESOURCE_BUSY
115 .flags
= IORESOURCE_BUSY
119 .name
= "dma page reg",
120 .flags
= IORESOURCE_BUSY
125 .flags
= IORESOURCE_BUSY
129 .name
= "PCI config data",
130 .flags
= IORESOURCE_BUSY
134 static struct resource sni_mem_resource
= {
135 .start
= 0x10000000UL
,
137 .name
= "PCIMT PCI MEM",
138 .flags
= IORESOURCE_MEM
142 * The RM200/RM300 has a few holes in it's PCI/EISA memory address space used
143 * for other purposes. Be paranoid and allocate all of the before the PCI
144 * code gets a chance to to map anything else there ...
146 * This leaves the following areas available:
148 * 0x10000000 - 0x1009ffff (640kB) PCI/EISA/ISA Bus Memory
149 * 0x10100000 - 0x13ffffff ( 15MB) PCI/EISA/ISA Bus Memory
150 * 0x18000000 - 0x1fbfffff (124MB) PCI/EISA Bus Memory
151 * 0x1ff08000 - 0x1ffeffff (816kB) PCI/EISA Bus Memory
152 * 0xa0000000 - 0xffffffff (1.5GB) PCI/EISA Bus Memory
154 static struct resource pcimt_mem_resources
[] = {
158 .name
= "Video RAM area",
159 .flags
= IORESOURCE_BUSY
163 .name
= "ISA Reserved",
164 .flags
= IORESOURCE_BUSY
169 .flags
= IORESOURCE_BUSY
173 .name
= "Cache Replacement Area",
174 .flags
= IORESOURCE_BUSY
178 .name
= "PCI INT Acknowledge",
179 .flags
= IORESOURCE_BUSY
184 .flags
= IORESOURCE_BUSY
189 .flags
= IORESOURCE_BUSY
194 .flags
= IORESOURCE_BUSY
199 .flags
= IORESOURCE_BUSY
203 .name
= "NVRAM / EEPROM",
204 .flags
= IORESOURCE_BUSY
209 .flags
= IORESOURCE_BUSY
214 .flags
= IORESOURCE_BUSY
218 .name
= "Main Memory",
219 .flags
= IORESOURCE_BUSY
223 static void __init
sni_resource_init(void)
227 /* request I/O space for devices used on all i[345]86 PCs */
228 for (i
= 0; i
< ARRAY_SIZE(pcimt_io_resources
); i
++)
229 request_resource(&ioport_resource
, pcimt_io_resources
+ i
);
231 /* request mem space for pcimt-specific devices */
232 for (i
= 0; i
< ARRAY_SIZE(pcimt_mem_resources
); i
++)
233 request_resource(&sni_mem_resource
, pcimt_mem_resources
+ i
);
235 ioport_resource
.end
= sni_io_resource
.end
;
238 extern struct pci_ops sni_pci_ops
;
240 static struct pci_controller sni_controller
= {
241 .pci_ops
= &sni_pci_ops
,
242 .mem_resource
= &sni_mem_resource
,
243 .mem_offset
= 0x10000000UL
,
244 .io_resource
= &sni_io_resource
,
245 .io_offset
= 0x00000000UL
248 static inline void sni_pcimt_time_init(void)
250 rtc_mips_get_time
= mc146818_get_cmos_time
;
251 rtc_mips_set_time
= mc146818_set_rtc_mmss
;
254 void __init
plat_mem_setup(void)
258 sni_pcimt_time_init();
260 set_io_port_base(SNI_PORT_BASE
);
261 ioport_resource
.end
= sni_io_resource
.end
;
264 * Setup (E)ISA I/O memory access stuff
266 isa_slot_offset
= 0xb0000000;
273 _machine_restart
= sni_machine_restart
;
274 _machine_halt
= sni_machine_halt
;
275 pm_power_off
= sni_machine_power_off
;
280 register_pci_controller(&sni_controller
);