Commit | Line | Data |
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1da177e4 LT |
1 | /* |
2 | * ip22-hpc.c: Routines for generic manipulation of the HPC controllers. | |
3 | * | |
79add627 | 4 | * Copyright (C) 1996 David S. Miller (davem@davemloft.net) |
1da177e4 LT |
5 | * Copyright (C) 1998 Ralf Baechle |
6 | */ | |
7 | ||
8 | #include <linux/init.h> | |
9 | #include <linux/module.h> | |
10 | #include <linux/types.h> | |
11 | ||
12 | #include <asm/io.h> | |
13 | #include <asm/sgi/hpc3.h> | |
14 | #include <asm/sgi/ioc.h> | |
15 | #include <asm/sgi/ip22.h> | |
16 | ||
17 | struct hpc3_regs *hpc3c0, *hpc3c1; | |
18 | ||
19 | EXPORT_SYMBOL(hpc3c0); | |
20 | EXPORT_SYMBOL(hpc3c1); | |
21 | ||
22 | struct sgioc_regs *sgioc; | |
23 | ||
24 | EXPORT_SYMBOL(sgioc); | |
25 | ||
26 | /* We need software copies of these because they are write only. */ | |
27 | u8 sgi_ioc_reset, sgi_ioc_write; | |
28 | ||
29 | extern char *system_type; | |
30 | ||
31 | void __init sgihpc_init(void) | |
32 | { | |
33 | /* ioremap can't fail */ | |
34 | hpc3c0 = (struct hpc3_regs *) | |
35 | ioremap(HPC3_CHIP0_BASE, sizeof(struct hpc3_regs)); | |
36 | hpc3c1 = (struct hpc3_regs *) | |
37 | ioremap(HPC3_CHIP1_BASE, sizeof(struct hpc3_regs)); | |
38 | /* IOC lives in PBUS PIO channel 6 */ | |
39 | sgioc = (struct sgioc_regs *)hpc3c0->pbus_extregs[6]; | |
40 | ||
41 | hpc3c0->pbus_piocfg[6][0] |= HPC3_PIOCFG_DS16; | |
42 | if (ip22_is_fullhouse()) { | |
43 | /* Full House comes with INT2 which lives in PBUS PIO | |
44 | * channel 4 */ | |
45 | sgint = (struct sgint_regs *)hpc3c0->pbus_extregs[4]; | |
46 | system_type = "SGI Indigo2"; | |
47 | } else { | |
48 | /* Guiness comes with INT3 which is part of IOC */ | |
49 | sgint = &sgioc->int3; | |
50 | system_type = "SGI Indy"; | |
51 | } | |
42a3b4f2 | 52 | |
1da177e4 LT |
53 | sgi_ioc_reset = (SGIOC_RESET_PPORT | SGIOC_RESET_KBDMOUSE | |
54 | SGIOC_RESET_EISA | SGIOC_RESET_ISDN | | |
55 | SGIOC_RESET_LC0OFF); | |
56 | ||
57 | sgi_ioc_write = (SGIOC_WRITE_EASEL | SGIOC_WRITE_NTHRESH | | |
58 | SGIOC_WRITE_TPSPEED | SGIOC_WRITE_EPSEL | | |
59 | SGIOC_WRITE_U0AMODE | SGIOC_WRITE_U1AMODE); | |
60 | ||
61 | sgioc->reset = sgi_ioc_reset; | |
62 | sgioc->write = sgi_ioc_write; | |
63 | } |