blob: 1303e5869be1cca227daab4d0ec810054442ada5 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
|
/*
* ohare.h: definitions for using the "O'Hare" I/O controller chip.
*
* Copyright (C) 1997 Paul Mackerras.
*
* BenH: Changed to match those of heathrow (but not all of them). Please
* check if I didn't break anything (especially the media bay).
*/
/* offset from ohare base for feature control register */
#define OHARE_FEATURE_REG 0x38
/*
* Bits in feature control register.
* These were mostly derived by experiment on a powerbook 3400
* and may differ for other machines.
*/
#define OH_SCC_RESET 1
#define OH_BAY_POWER_N 2 /* a guess */
#define OH_BAY_PCI_ENABLE 4 /* a guess */
#define OH_BAY_IDE_ENABLE 8
#define OH_BAY_FLOPPY_ENABLE 0x10
#define OH_IDE0_ENABLE 0x20
#define OH_IDE0_RESET_N 0x40 /* a guess */
#define OH_BAY_RESET_N 0x80
#define OH_IOBUS_ENABLE 0x100 /* IOBUS seems to be IDE */
#define OH_SCC_ENABLE 0x200
#define OH_MESH_ENABLE 0x400
#define OH_FLOPPY_ENABLE 0x800
#define OH_SCCA_IO 0x4000
#define OH_SCCB_IO 0x8000
#define OH_VIA_ENABLE 0x10000 /* Is apparently wrong, to be verified */
#define OH_IDE1_RESET_N 0x800000
/*
* Bits to set in the feature control register on PowerBooks.
*/
#define PBOOK_FEATURES (OH_IDE_ENABLE | OH_SCC_ENABLE | \
OH_MESH_ENABLE | OH_SCCA_IO | OH_SCCB_IO)
/*
* A magic value to put into the feature control register of the
* "ohare" I/O controller on Starmaxes to enable the IDE CD interface.
* Contributed by Harry Eaton.
*/
#define STARMAX_FEATURES 0xbeff7a
|
