blob: 12dd18fd479561dfafdc053463465ce0d73c4a07 [file] [log] [blame]
* Freescale MPC85xx/MPC86xx RapidIO support
* Copyright 2009 Sysgo AG
* Thomas Moll <>
* - fixed maintenance access routines, check for aligned access
* Copyright 2009 Integrated Device Technology, Inc.
* Alex Bounine <>
* - Added Port-Write message handling
* - Added Machine Check exception handling
* Copyright (C) 2007, 2008, 2010, 2011 Freescale Semiconductor, Inc.
* Zhang Wei <>
* Lian Minghuan-B31939 <>
* Liu Gang <>
* Copyright 2005 MontaVista Software, Inc.
* Matt Porter <>
* 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.
#ifndef __FSL_RIO_H
#define __FSL_RIO_H
#include <linux/rio.h>
#include <linux/rio_drv.h>
#include <linux/kfifo.h>
#define RIO_REGS_WIN(mport) (((struct rio_priv *)(mport->priv))->regs_win)
#define RIO_MAINT_WIN_SIZE 0x400000
#define RIO_LTLEDCSR 0x0608
#define DOORBELL_ROWAR_EN 0x80000000
#define DOORBELL_ROWAR_TFLOWLV 0x08000000 /* highest priority level */
#define DOORBELL_ROWAR_PCI 0x02000000 /* PCI window */
#define DOORBELL_ROWAR_NREAD 0x00040000 /* NREAD */
#define DOORBELL_ROWAR_MAINTRD 0x00070000 /* maintenance read */
#define DOORBELL_ROWAR_RES 0x00002000 /* wrtpy: reserverd */
#define DOORBELL_ROWAR_MAINTWD 0x00007000
#define DOORBELL_ROWAR_SIZE 0x0000000b /* window size is 4k */
#define RIO_ATMU_REGS_PORT1_OFFSET 0x10c00
#define RIO_ATMU_REGS_PORT2_OFFSET 0x10e00
#define RIO_S_DBELL_REGS_OFFSET 0x13400
#define RIO_S_PW_REGS_OFFSET 0x134e0
#define MAX_MSG_UNIT_NUM 2
#define MAX_PORT_NUM 4
struct rio_atmu_regs {
u32 rowtar;
u32 rowtear;
u32 rowbar;
u32 pad1;
u32 rowar;
u32 pad2[3];
struct rio_inb_atmu_regs {
u32 riwtar;
u32 pad1;
u32 riwbar;
u32 pad2;
u32 riwar;
u32 pad3[3];
struct rio_dbell_ring {
void *virt;
dma_addr_t phys;
struct rio_port_write_msg {
void *virt;
dma_addr_t phys;
u32 msg_count;
u32 err_count;
u32 discard_count;
struct fsl_rio_dbell {
struct rio_mport *mport[MAX_PORT_NUM];
struct device *dev;
struct rio_dbell_regs __iomem *dbell_regs;
struct rio_dbell_ring dbell_ring;
int bellirq;
struct fsl_rio_pw {
struct rio_mport *mport[MAX_PORT_NUM];
struct device *dev;
struct rio_pw_regs __iomem *pw_regs;
struct rio_port_write_msg port_write_msg;
int pwirq;
struct work_struct pw_work;
struct kfifo pw_fifo;
spinlock_t pw_fifo_lock;
struct rio_priv {
struct device *dev;
void __iomem *regs_win;
struct rio_atmu_regs __iomem *atmu_regs;
struct rio_atmu_regs __iomem *maint_atmu_regs;
struct rio_inb_atmu_regs __iomem *inb_atmu_regs;
void __iomem *maint_win;
void *rmm_handle; /* RapidIO message manager(unit) Handle */
extern void __iomem *rio_regs_win;
extern void __iomem *rmu_regs_win;
extern resource_size_t rio_law_start;
extern struct fsl_rio_dbell *dbell;
extern struct fsl_rio_pw *pw;
extern int fsl_rio_setup_rmu(struct rio_mport *mport,
struct device_node *node);
extern int fsl_rio_port_write_init(struct fsl_rio_pw *pw);
extern int fsl_rio_pw_enable(struct rio_mport *mport, int enable);
extern void fsl_rio_port_error_handler(int offset);
extern int fsl_rio_doorbell_init(struct fsl_rio_dbell *dbell);
extern int fsl_rio_doorbell_send(struct rio_mport *mport,
int index, u16 destid, u16 data);
extern int fsl_add_outb_message(struct rio_mport *mport,
struct rio_dev *rdev,
int mbox, void *buffer, size_t len);
extern int fsl_open_outb_mbox(struct rio_mport *mport,
void *dev_id, int mbox, int entries);
extern void fsl_close_outb_mbox(struct rio_mport *mport, int mbox);
extern int fsl_open_inb_mbox(struct rio_mport *mport,
void *dev_id, int mbox, int entries);
extern void fsl_close_inb_mbox(struct rio_mport *mport, int mbox);
extern int fsl_add_inb_buffer(struct rio_mport *mport, int mbox, void *buf);
extern void *fsl_get_inb_message(struct rio_mport *mport, int mbox);