| /* SPDX-License-Identifier: GPL-2.0 */ | |
| #ifndef _ASM_POWERPC_OHARE_H | |
| #define _ASM_POWERPC_OHARE_H | |
| #ifdef __KERNEL__ | |
| /* | |
| * 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_MBCR 0x34 | |
| #define OHARE_FCR 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_DEV_MASK 0x1c | |
| #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 | |
| #endif /* __KERNEL__ */ | |
| #endif /* _ASM_POWERPC_OHARE_H */ |