diff options
author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /include/asm-ppc/ohare.h |
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'include/asm-ppc/ohare.h')
-rw-r--r-- | include/asm-ppc/ohare.h | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/include/asm-ppc/ohare.h b/include/asm-ppc/ohare.h new file mode 100644 index 000000000000..023b59772231 --- /dev/null +++ b/include/asm-ppc/ohare.h | |||
@@ -0,0 +1,48 @@ | |||
1 | /* | ||
2 | * ohare.h: definitions for using the "O'Hare" I/O controller chip. | ||
3 | * | ||
4 | * Copyright (C) 1997 Paul Mackerras. | ||
5 | * | ||
6 | * BenH: Changed to match those of heathrow (but not all of them). Please | ||
7 | * check if I didn't break anything (especially the media bay). | ||
8 | */ | ||
9 | |||
10 | /* offset from ohare base for feature control register */ | ||
11 | #define OHARE_MBCR 0x34 | ||
12 | #define OHARE_FCR 0x38 | ||
13 | |||
14 | /* | ||
15 | * Bits in feature control register. | ||
16 | * These were mostly derived by experiment on a powerbook 3400 | ||
17 | * and may differ for other machines. | ||
18 | */ | ||
19 | #define OH_SCC_RESET 1 | ||
20 | #define OH_BAY_POWER_N 2 /* a guess */ | ||
21 | #define OH_BAY_PCI_ENABLE 4 /* a guess */ | ||
22 | #define OH_BAY_IDE_ENABLE 8 | ||
23 | #define OH_BAY_FLOPPY_ENABLE 0x10 | ||
24 | #define OH_IDE0_ENABLE 0x20 | ||
25 | #define OH_IDE0_RESET_N 0x40 /* a guess */ | ||
26 | #define OH_BAY_DEV_MASK 0x1c | ||
27 | #define OH_BAY_RESET_N 0x80 | ||
28 | #define OH_IOBUS_ENABLE 0x100 /* IOBUS seems to be IDE */ | ||
29 | #define OH_SCC_ENABLE 0x200 | ||
30 | #define OH_MESH_ENABLE 0x400 | ||
31 | #define OH_FLOPPY_ENABLE 0x800 | ||
32 | #define OH_SCCA_IO 0x4000 | ||
33 | #define OH_SCCB_IO 0x8000 | ||
34 | #define OH_VIA_ENABLE 0x10000 /* Is apparently wrong, to be verified */ | ||
35 | #define OH_IDE1_RESET_N 0x800000 | ||
36 | |||
37 | /* | ||
38 | * Bits to set in the feature control register on PowerBooks. | ||
39 | */ | ||
40 | #define PBOOK_FEATURES (OH_IDE_ENABLE | OH_SCC_ENABLE | \ | ||
41 | OH_MESH_ENABLE | OH_SCCA_IO | OH_SCCB_IO) | ||
42 | |||
43 | /* | ||
44 | * A magic value to put into the feature control register of the | ||
45 | * "ohare" I/O controller on Starmaxes to enable the IDE CD interface. | ||
46 | * Contributed by Harry Eaton. | ||
47 | */ | ||
48 | #define STARMAX_FEATURES 0xbeff7a | ||