| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * arch/ppc/platforms/pplus.h |
| 3 | * |
| 4 | * Definitions for Motorola MCG Falcon/Raven & HAWK North Bridge & Memory ctlr. |
| 5 | * |
| 6 | * Author: Mark A. Greerinclude/asm-ppc/hawk.h |
| 7 | * mgreer@mvista.com |
| 8 | * |
| 9 | * Modified by Randy Vinson (rvinson@mvista.com) |
| 10 | * |
| 11 | * 2001-2004 (c) MontaVista, Software, Inc. This file is licensed under |
| 12 | * the terms of the GNU General Public License version 2. This program |
| 13 | * is licensed "as is" without any warranty of any kind, whether express |
| 14 | * or implied. |
| 15 | */ |
| 16 | |
| 17 | #ifndef __PPC_PPLUS_H |
| 18 | #define __PPC_PPLUS_H |
| 19 | |
| 20 | #include <asm/io.h> |
| 21 | |
| 22 | /* |
| 23 | * Due to limiations imposed by legacy hardware (primaryily IDE controllers), |
| 24 | * the PPLUS boards operate using a PReP address map. |
| 25 | * |
| 26 | * From Processor (physical) -> PCI: |
| 27 | * PCI Mem Space: 0xc0000000 - 0xfe000000 -> 0x00000000 - 0x3e000000 (768 MB) |
| 28 | * PCI I/O Space: 0x80000000 - 0x90000000 -> 0x00000000 - 0x10000000 (256 MB) |
| 29 | * Note: Must skip 0xfe000000-0xfe400000 for CONFIG_HIGHMEM/PKMAP area |
| 30 | * |
| 31 | * From PCI -> Processor (physical): |
| 32 | * System Memory: 0x80000000 -> 0x00000000 |
| 33 | */ |
| 34 | |
| 35 | #define PPLUS_ISA_MEM_BASE PREP_ISA_MEM_BASE |
| 36 | #define PPLUS_ISA_IO_BASE PREP_ISA_IO_BASE |
| 37 | |
| 38 | /* PCI Memory space mapping info */ |
| 39 | #define PPLUS_PCI_MEM_SIZE 0x30000000U |
| 40 | #define PPLUS_PROC_PCI_MEM_START PPLUS_ISA_MEM_BASE |
| 41 | #define PPLUS_PROC_PCI_MEM_END (PPLUS_PROC_PCI_MEM_START + \ |
| 42 | PPLUS_PCI_MEM_SIZE - 1) |
| 43 | #define PPLUS_PCI_MEM_START 0x00000000U |
| 44 | #define PPLUS_PCI_MEM_END (PPLUS_PCI_MEM_START + \ |
| 45 | PPLUS_PCI_MEM_SIZE - 1) |
| 46 | |
| 47 | /* PCI I/O space mapping info */ |
| 48 | #define PPLUS_PCI_IO_SIZE 0x10000000U |
| 49 | #define PPLUS_PROC_PCI_IO_START PPLUS_ISA_IO_BASE |
| 50 | #define PPLUS_PROC_PCI_IO_END (PPLUS_PROC_PCI_IO_START + \ |
| 51 | PPLUS_PCI_IO_SIZE - 1) |
| 52 | #define PPLUS_PCI_IO_START 0x00000000U |
| 53 | #define PPLUS_PCI_IO_END (PPLUS_PCI_IO_START + \ |
| 54 | PPLUS_PCI_IO_SIZE - 1) |
| 55 | /* System memory mapping info */ |
| 56 | #define PPLUS_PCI_DRAM_OFFSET PREP_PCI_DRAM_OFFSET |
| 57 | #define PPLUS_PCI_PHY_MEM_OFFSET (PPLUS_ISA_MEM_BASE-PPLUS_PCI_MEM_START) |
| 58 | |
| 59 | /* Define base addresses for important sets of registers */ |
| 60 | #define PPLUS_HAWK_SMC_BASE 0xfef80000U |
| 61 | #define PPLUS_HAWK_PPC_REG_BASE 0xfeff0000U |
| 62 | #define PPLUS_SYS_CONFIG_REG 0xfef80400U |
| 63 | #define PPLUS_L2_CONTROL_REG 0x8000081cU |
| 64 | |
| 65 | #define PPLUS_VGA_MEM_BASE 0xf0000000U |
| 66 | |
| 67 | #endif /* __PPC_PPLUS_H */ |