kernel-ark/include/asm-ppc/m8260_pci.h

/*
 * include/asm-ppc/m8260_pci.h
 *
 * Definitions for the MPC8250/MPC8265/MPC8266 integrated PCI host bridge.
 *
 * This program is free software; you can redistribute  it and/or modify it
 * under  the terms of  the GNU General  Public License as published by the
 * Free Software Foundation;  either version 2 of the  License, or (at your
 * option) any later version.
 */

#ifdef __KERNEL__
#ifndef __M8260_PCI_H
#define __M8260_PCI_H

#include <linux/pci_ids.h>

/*
 * Define the vendor/device ID for the MPC8265.
 */
#define	PCI_DEVICE_ID_MPC8265	((0x18C0 << 16) | PCI_VENDOR_ID_MOTOROLA)
#define	PCI_DEVICE_ID_MPC8272	((0x18C1 << 16) | PCI_VENDOR_ID_MOTOROLA)

#define M8265_PCIBR0	0x101ac
#define M8265_PCIBR1	0x101b0
#define M8265_PCIMSK0	0x101c4
#define M8265_PCIMSK1	0x101c8

/* Bit definitions for PCIBR registers */

#define PCIBR_ENABLE        0x00000001

/* Bit definitions for PCIMSK registers */

#define PCIMSK_32KiB         0xFFFF8000  /* Size of window, smallest */
#define PCIMSK_64KiB         0xFFFF0000
#define PCIMSK_128KiB        0xFFFE0000
#define PCIMSK_256KiB        0xFFFC0000
#define PCIMSK_512KiB        0xFFF80000
#define PCIMSK_1MiB          0xFFF00000
#define PCIMSK_2MiB          0xFFE00000
#define PCIMSK_4MiB          0xFFC00000
#define PCIMSK_8MiB          0xFF800000
#define PCIMSK_16MiB         0xFF000000
#define PCIMSK_32MiB         0xFE000000
#define PCIMSK_64MiB         0xFC000000
#define PCIMSK_128MiB        0xF8000000
#define PCIMSK_256MiB        0xF0000000
#define PCIMSK_512MiB        0xE0000000
#define PCIMSK_1GiB          0xC0000000  /* Size of window, largest */


#define M826X_SCCR_PCI_MODE_EN 0x100


/*
 * Outbound ATU registers (3 sets). These registers control how 60x bus (local) 
 * addresses are translated to PCI addresses when the MPC826x is a PCI bus 
 * master (initiator).
 */

#define POTAR_REG0          0x10800     /* PCI Outbound Translation Addr registers */
#define POTAR_REG1          0x10818
#define POTAR_REG2          0x10830

#define POBAR_REG0          0x10808     /* PCI Outbound Base Addr registers */
#define POBAR_REG1          0x10820
#define POBAR_REG2          0x10838

#define POCMR_REG0          0x10810     /* PCI Outbound Comparison Mask registers */
#define POCMR_REG1          0x10828
#define POCMR_REG2          0x10840

/* Bit definitions for POMCR registers */

#define POCMR_MASK_4KiB      0x000FFFFF
#define POCMR_MASK_8KiB      0x000FFFFE
#define POCMR_MASK_16KiB     0x000FFFFC
#define POCMR_MASK_32KiB     0x000FFFF8
#define POCMR_MASK_64KiB     0x000FFFF0
#define POCMR_MASK_128KiB    0x000FFFE0
#define POCMR_MASK_256KiB    0x000FFFC0
#define POCMR_MASK_512KiB    0x000FFF80
#define POCMR_MASK_1MiB      0x000FFF00
#define POCMR_MASK_2MiB      0x000FFE00
#define POCMR_MASK_4MiB      0x000FFC00
#define POCMR_MASK_8MiB      0x000FF800
#define POCMR_MASK_16MiB     0x000FF000
#define POCMR_MASK_32MiB     0x000FE000
#define POCMR_MASK_64MiB     0x000FC000
#define POCMR_MASK_128MiB    0x000F8000
#define POCMR_MASK_256MiB    0x000F0000
#define POCMR_MASK_512MiB    0x000E0000
#define POCMR_MASK_1GiB      0x000C0000

#define POCMR_ENABLE        0x80000000
#define POCMR_PCI_IO        0x40000000
#define POCMR_PREFETCH_EN   0x20000000

/* Soft PCI reset */

#define PCI_GCR_REG         0x10880

/* Bit definitions for PCI_GCR registers */

#define PCIGCR_PCI_BUS_EN   0x1

#define PCI_EMR_REG	    0x10888
/*
 * Inbound ATU registers (2 sets). These registers control how PCI addresses 
 * are translated to 60x bus (local) addresses when the MPC826x is a PCI bus target.
 */

#define PITAR_REG1          0x108D0
#define PIBAR_REG1          0x108D8
#define PICMR_REG1          0x108E0
#define PITAR_REG0          0x108E8
#define PIBAR_REG0          0x108F0
#define PICMR_REG0          0x108F8

/* Bit definitions for PCI Inbound Comparison Mask registers */

#define PICMR_MASK_4KiB       0x000FFFFF
#define PICMR_MASK_8KiB       0x000FFFFE
#define PICMR_MASK_16KiB      0x000FFFFC
#define PICMR_MASK_32KiB      0x000FFFF8
#define PICMR_MASK_64KiB      0x000FFFF0
#define PICMR_MASK_128KiB     0x000FFFE0
#define PICMR_MASK_256KiB     0x000FFFC0
#define PICMR_MASK_512KiB     0x000FFF80
#define PICMR_MASK_1MiB       0x000FFF00
#define PICMR_MASK_2MiB       0x000FFE00
#define PICMR_MASK_4MiB       0x000FFC00
#define PICMR_MASK_8MiB       0x000FF800
#define PICMR_MASK_16MiB      0x000FF000
#define PICMR_MASK_32MiB      0x000FE000
#define PICMR_MASK_64MiB      0x000FC000
#define PICMR_MASK_128MiB     0x000F8000
#define PICMR_MASK_256MiB     0x000F0000
#define PICMR_MASK_512MiB     0x000E0000
#define PICMR_MASK_1GiB       0x000C0000

#define PICMR_ENABLE         0x80000000
#define PICMR_NO_SNOOP_EN    0x40000000
#define PICMR_PREFETCH_EN    0x20000000

/* PCI error Registers */

#define	PCI_ERROR_STATUS_REG		0x10884
#define	PCI_ERROR_MASK_REG		0x10888
#define	PCI_ERROR_CONTROL_REG		0x1088C
#define PCI_ERROR_ADRS_CAPTURE_REG      0x10890
#define PCI_ERROR_DATA_CAPTURE_REG      0x10898
#define PCI_ERROR_CTRL_CAPTURE_REG      0x108A0

/* PCI error Register bit defines */

#define	PCI_ERROR_PCI_ADDR_PAR			0x00000001
#define	PCI_ERROR_PCI_DATA_PAR_WR		0x00000002
#define	PCI_ERROR_PCI_DATA_PAR_RD		0x00000004
#define	PCI_ERROR_PCI_NO_RSP			0x00000008
#define	PCI_ERROR_PCI_TAR_ABT			0x00000010
#define	PCI_ERROR_PCI_SERR			0x00000020
#define	PCI_ERROR_PCI_PERR_RD			0x00000040
#define	PCI_ERROR_PCI_PERR_WR			0x00000080
#define	PCI_ERROR_I2O_OFQO			0x00000100
#define	PCI_ERROR_I2O_IPQO			0x00000200
#define	PCI_ERROR_IRA				0x00000400
#define	PCI_ERROR_NMI				0x00000800
#define	PCI_ERROR_I2O_DBMC			0x00001000

/*
 * Register pair used to generate configuration cycles on the PCI bus
 * and access the MPC826x's own PCI configuration registers.
 */

#define PCI_CFG_ADDR_REG     0x10900
#define PCI_CFG_DATA_REG     0x10904

/* Bus parking decides where the bus control sits when idle */
/* If modifying memory controllers for PCI park on the core */

#define PPC_ACR_BUS_PARK_CORE 0x6
#define PPC_ACR_BUS_PARK_PCI  0x3

#endif /* __M8260_PCI_H */
#endif /* __KERNEL__ */