/* * Freescale MPC85xx/MPC86xx RapidIO support * * Copyright 2009 Sysgo AG * Thomas Moll <thomas.moll@sysgo.com> * - fixed maintenance access routines, check for aligned access * * Copyright 2009 Integrated Device Technology, Inc. * Alex Bounine <alexandre.bounine@idt.com> * - Added Port-Write message handling * - Added Machine Check exception handling * * Copyright (C) 2007, 2008, 2010, 2011 Freescale Semiconductor, Inc. * Zhang Wei <wei.zhang@freescale.com> * Lian Minghuan-B31939 <Minghuan.Lian@freescale.com> * Liu Gang <Gang.Liu@freescale.com> * * Copyright 2005 MontaVista Software, Inc. * Matt Porter <mporter@kernel.crashing.org> * * 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 RIO_ATMU_REGS_DBELL_OFFSET 0x10C40 #define RIO_INB_ATMU_REGS_PORT1_OFFSET 0x10d60 #define RIO_INB_ATMU_REGS_PORT2_OFFSET 0x10f60 #define MAX_MSG_UNIT_NUM 2 #define MAX_PORT_NUM 4 #define RIO_INB_ATMU_COUNT 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); #endif