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pplus.h

/*
 * Definitions for Motorola MCG Falcon/Raven & HAWK North Bridge & Memory ctlr.
 *
 * Author: Mark A. Greerinclude/asm-ppc/hawk.h
 *         mgreer@mvista.com
 *
 * Modified by Randy Vinson (rvinson@mvista.com)
 *
 * 2001-2004 (c) MontaVista, Software, Inc.  This file is licensed under
 * the terms of the GNU General Public License version 2.  This program
 * is licensed "as is" without any warranty of any kind, whether express
 * or implied.
 */

#ifndef __PPC_PPLUS_H
#define __PPC_PPLUS_H

#include <asm/io.h>

/*
 * Due to limitations imposed by legacy hardware (primarily IDE controllers),
 * the PPLUS boards operate using a PReP address map.
 *
 * From Processor (physical) -> PCI:
 *   PCI Mem Space: 0xc0000000 - 0xfe000000 -> 0x00000000 - 0x3e000000 (768 MB)
 *   PCI I/O Space: 0x80000000 - 0x90000000 -> 0x00000000 - 0x10000000 (256 MB)
 *    Note: Must skip 0xfe000000-0xfe400000 for CONFIG_HIGHMEM/PKMAP area
 *
 * From PCI -> Processor (physical):
 *   System Memory: 0x80000000 -> 0x00000000
 */

#define PPLUS_ISA_MEM_BASE          PREP_ISA_MEM_BASE
#define PPLUS_ISA_IO_BASE           PREP_ISA_IO_BASE

/* PCI Memory space mapping info */
#define PPLUS_PCI_MEM_SIZE          0x30000000U
#define PPLUS_PROC_PCI_MEM_START    PPLUS_ISA_MEM_BASE
#define PPLUS_PROC_PCI_MEM_END            (PPLUS_PROC_PCI_MEM_START +   \
                               PPLUS_PCI_MEM_SIZE - 1)
#define PPLUS_PCI_MEM_START         0x00000000U
#define PPLUS_PCI_MEM_END           (PPLUS_PCI_MEM_START +  \
                               PPLUS_PCI_MEM_SIZE - 1)

/* PCI I/O space mapping info */
#define PPLUS_PCI_IO_SIZE           0x10000000U
#define PPLUS_PROC_PCI_IO_START           PPLUS_ISA_IO_BASE
#define PPLUS_PROC_PCI_IO_END       (PPLUS_PROC_PCI_IO_START +    \
                               PPLUS_PCI_IO_SIZE - 1)
#define PPLUS_PCI_IO_START          0x00000000U
#define PPLUS_PCI_IO_END            (PPLUS_PCI_IO_START +   \
                               PPLUS_PCI_IO_SIZE - 1)
/* System memory mapping info */
#define PPLUS_PCI_DRAM_OFFSET       PREP_PCI_DRAM_OFFSET
#define PPLUS_PCI_PHY_MEM_OFFSET    (PPLUS_ISA_MEM_BASE-PPLUS_PCI_MEM_START)

/* Define base addresses for important sets of registers */
#define PPLUS_HAWK_SMC_BASE         0xfef80000U
#define PPLUS_HAWK_PPC_REG_BASE           0xfeff0000U
#define PPLUS_SYS_CONFIG_REG        0xfef80400U
#define PPLUS_L2_CONTROL_REG        0x8000081cU

#define PPLUS_VGA_MEM_BASE          0xf0000000U

#endif      /* __PPC_PPLUS_H */

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