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prpmc750.h

/*
 * arch/ppc/platforms/prpmc750.h
 *
 * Definitions for Motorola PrPMC750 board support
 *
 * Author: Matt Porter <mporter@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.
 */

#ifdef __KERNEL__
#ifndef __ASM_PRPMC750_H__
#define __ASM_PRPMC750_H__

/*
 * Due to limitations imposed by legacy hardware (primarily IDE controllers),
 * the PrPMC750 carrier board operates 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 PRPMC750_ISA_IO_BASE        PREP_ISA_IO_BASE
#define PRPMC750_ISA_MEM_BASE       PREP_ISA_MEM_BASE

/* PCI Memory space mapping info */
#define PRPMC750_PCI_MEM_SIZE       0x30000000U
#define PRPMC750_PROC_PCI_MEM_START PRPMC750_ISA_MEM_BASE
#define PRPMC750_PROC_PCI_MEM_END   (PRPMC750_PROC_PCI_MEM_START +      \
                               PRPMC750_PCI_MEM_SIZE - 1)
#define PRPMC750_PCI_MEM_START            0x00000000U
#define PRPMC750_PCI_MEM_END        (PRPMC750_PCI_MEM_START +     \
                               PRPMC750_PCI_MEM_SIZE - 1)

/* PCI I/O space mapping info */
#define PRPMC750_PCI_IO_SIZE        0x10000000U
#define PRPMC750_PROC_PCI_IO_START  PRPMC750_ISA_IO_BASE
#define PRPMC750_PROC_PCI_IO_END    (PRPMC750_PROC_PCI_IO_START + \
                               PRPMC750_PCI_IO_SIZE - 1)
#define PRPMC750_PCI_IO_START       0x00000000U
#define PRPMC750_PCI_IO_END         (PRPMC750_PCI_IO_START +      \
                               PRPMC750_PCI_IO_SIZE - 1)

/* System memory mapping info */
#define PRPMC750_PCI_DRAM_OFFSET    PREP_PCI_DRAM_OFFSET
#define PRPMC750_PCI_PHY_MEM_OFFSET (PRPMC750_ISA_MEM_BASE-PRPMC750_PCI_MEM_START)

/* Register address definitions */
#define PRPMC750_HAWK_SMC_BASE            0xfef80000U
#define PRPMC750_HAWK_PPC_REG_BASE  0xfeff0000U

#define PRPMC750_BASE_BAUD          1843200
#define PRPMC750_SERIAL_0           0xfef88000
#define PRPMC750_SERIAL_0_DLL       (PRPMC750_SERIAL_0 + (UART_DLL << 4))
#define PRPMC750_SERIAL_0_DLM       (PRPMC750_SERIAL_0 + (UART_DLM << 4))
#define PRPMC750_SERIAL_0_LCR       (PRPMC750_SERIAL_0 + (UART_LCR << 4))

#define PRPMC750_STATUS_REG         0xfef88080
#define PRPMC750_BAUDOUT_MASK       0x02
#define PRPMC750_MONARCH_MASK       0x01

#define PRPMC750_MODRST_REG         0xfef880a0
#define PRPMC750_MODRST_MASK        0x01

#define PRPMC750_PIRQ_REG           0xfef880b0
#define PRPMC750_SEL1_MASK          0x02
#define PRPMC750_SEL0_MASK          0x01

#define PRPMC750_TBEN_REG           0xfef880c0
#define PRPMC750_TBEN_MASK          0x01

/* UART Defines. */
#define RS_TABLE_SIZE  4

/* Rate for the 1.8432 Mhz clock for the onboard serial chip */
#define BASE_BAUD  (PRPMC750_BASE_BAUD / 16)

#define STD_COM_FLAGS ASYNC_BOOT_AUTOCONF

#define SERIAL_PORT_DFNS \
        { 0, BASE_BAUD, PRPMC750_SERIAL_0, 1, STD_COM_FLAGS, \
            iomem_base: (unsigned char *)PRPMC750_SERIAL_0, \
            iomem_reg_shift: 4, \
            io_type: SERIAL_IO_MEM } /* ttyS0 */

#endif                        /* __ASM_PRPMC750_H__ */
#endif                        /* __KERNEL__ */

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