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6ec4bedb LG |
1 | /* |
2 | * Freescale MPC85xx/MPC86xx RapidIO support | |
3 | * | |
4 | * Copyright 2009 Sysgo AG | |
5 | * Thomas Moll <thomas.moll@sysgo.com> | |
6 | * - fixed maintenance access routines, check for aligned access | |
7 | * | |
8 | * Copyright 2009 Integrated Device Technology, Inc. | |
9 | * Alex Bounine <alexandre.bounine@idt.com> | |
10 | * - Added Port-Write message handling | |
11 | * - Added Machine Check exception handling | |
12 | * | |
13 | * Copyright (C) 2007, 2008, 2010, 2011 Freescale Semiconductor, Inc. | |
14 | * Zhang Wei <wei.zhang@freescale.com> | |
15 | * Lian Minghuan-B31939 <Minghuan.Lian@freescale.com> | |
16 | * Liu Gang <Gang.Liu@freescale.com> | |
17 | * | |
18 | * Copyright 2005 MontaVista Software, Inc. | |
19 | * Matt Porter <mporter@kernel.crashing.org> | |
20 | * | |
21 | * This program is free software; you can redistribute it and/or modify it | |
22 | * under the terms of the GNU General Public License as published by the | |
23 | * Free Software Foundation; either version 2 of the License, or (at your | |
24 | * option) any later version. | |
25 | */ | |
26 | ||
27 | #ifndef __FSL_RIO_H | |
28 | #define __FSL_RIO_H | |
29 | ||
30 | #include <linux/rio.h> | |
31 | #include <linux/rio_drv.h> | |
32 | #include <linux/kfifo.h> | |
33 | ||
34 | #define RIO_REGS_WIN(mport) (((struct rio_priv *)(mport->priv))->regs_win) | |
35 | ||
36 | #define RIO_MAINT_WIN_SIZE 0x400000 | |
37 | #define RIO_LTLEDCSR 0x0608 | |
38 | ||
abc3aeae LG |
39 | #define DOORBELL_ROWAR_EN 0x80000000 |
40 | #define DOORBELL_ROWAR_TFLOWLV 0x08000000 /* highest priority level */ | |
41 | #define DOORBELL_ROWAR_PCI 0x02000000 /* PCI window */ | |
42 | #define DOORBELL_ROWAR_NREAD 0x00040000 /* NREAD */ | |
43 | #define DOORBELL_ROWAR_MAINTRD 0x00070000 /* maintenance read */ | |
44 | #define DOORBELL_ROWAR_RES 0x00002000 /* wrtpy: reserverd */ | |
45 | #define DOORBELL_ROWAR_MAINTWD 0x00007000 | |
46 | #define DOORBELL_ROWAR_SIZE 0x0000000b /* window size is 4k */ | |
47 | ||
48 | #define RIO_ATMU_REGS_PORT1_OFFSET 0x10c00 | |
49 | #define RIO_ATMU_REGS_PORT2_OFFSET 0x10e00 | |
50 | #define RIO_S_DBELL_REGS_OFFSET 0x13400 | |
51 | #define RIO_S_PW_REGS_OFFSET 0x134e0 | |
52 | #define RIO_ATMU_REGS_DBELL_OFFSET 0x10C40 | |
53 | ||
54 | #define MAX_MSG_UNIT_NUM 2 | |
55 | #define MAX_PORT_NUM 4 | |
56 | ||
6ec4bedb LG |
57 | struct rio_atmu_regs { |
58 | u32 rowtar; | |
59 | u32 rowtear; | |
60 | u32 rowbar; | |
abc3aeae | 61 | u32 pad1; |
6ec4bedb | 62 | u32 rowar; |
abc3aeae LG |
63 | u32 pad2[3]; |
64 | }; | |
65 | ||
66 | struct rio_dbell_ring { | |
67 | void *virt; | |
68 | dma_addr_t phys; | |
6ec4bedb LG |
69 | }; |
70 | ||
71 | struct rio_port_write_msg { | |
72 | void *virt; | |
73 | dma_addr_t phys; | |
74 | u32 msg_count; | |
75 | u32 err_count; | |
76 | u32 discard_count; | |
77 | }; | |
78 | ||
abc3aeae LG |
79 | struct fsl_rio_dbell { |
80 | struct rio_mport *mport[MAX_PORT_NUM]; | |
6ec4bedb | 81 | struct device *dev; |
abc3aeae LG |
82 | struct rio_dbell_regs __iomem *dbell_regs; |
83 | struct rio_dbell_ring dbell_ring; | |
84 | int bellirq; | |
85 | }; | |
86 | ||
87 | struct fsl_rio_pw { | |
88 | struct device *dev; | |
89 | struct rio_pw_regs __iomem *pw_regs; | |
6ec4bedb LG |
90 | struct rio_port_write_msg port_write_msg; |
91 | int pwirq; | |
92 | struct work_struct pw_work; | |
93 | struct kfifo pw_fifo; | |
94 | spinlock_t pw_fifo_lock; | |
abc3aeae LG |
95 | }; |
96 | ||
97 | struct rio_priv { | |
98 | struct device *dev; | |
99 | void __iomem *regs_win; | |
100 | struct rio_atmu_regs __iomem *atmu_regs; | |
101 | struct rio_atmu_regs __iomem *maint_atmu_regs; | |
102 | void __iomem *maint_win; | |
6ec4bedb LG |
103 | void *rmm_handle; /* RapidIO message manager(unit) Handle */ |
104 | }; | |
105 | ||
106 | extern void __iomem *rio_regs_win; | |
abc3aeae LG |
107 | extern void __iomem *rmu_regs_win; |
108 | ||
109 | extern resource_size_t rio_law_start; | |
110 | ||
111 | extern struct fsl_rio_dbell *dbell; | |
112 | extern struct fsl_rio_pw *pw; | |
6ec4bedb LG |
113 | |
114 | extern int fsl_rio_setup_rmu(struct rio_mport *mport, | |
115 | struct device_node *node); | |
abc3aeae | 116 | extern int fsl_rio_port_write_init(struct fsl_rio_pw *pw); |
6ec4bedb | 117 | extern int fsl_rio_pw_enable(struct rio_mport *mport, int enable); |
abc3aeae LG |
118 | extern void fsl_rio_port_error_handler(int offset); |
119 | extern int fsl_rio_doorbell_init(struct fsl_rio_dbell *dbell); | |
120 | ||
121 | extern int fsl_rio_doorbell_send(struct rio_mport *mport, | |
122 | int index, u16 destid, u16 data); | |
123 | extern int fsl_add_outb_message(struct rio_mport *mport, | |
124 | struct rio_dev *rdev, | |
125 | int mbox, void *buffer, size_t len); | |
126 | extern int fsl_open_outb_mbox(struct rio_mport *mport, | |
127 | void *dev_id, int mbox, int entries); | |
128 | extern void fsl_close_outb_mbox(struct rio_mport *mport, int mbox); | |
129 | extern int fsl_open_inb_mbox(struct rio_mport *mport, | |
130 | void *dev_id, int mbox, int entries); | |
131 | extern void fsl_close_inb_mbox(struct rio_mport *mport, int mbox); | |
132 | extern int fsl_add_inb_buffer(struct rio_mport *mport, int mbox, void *buf); | |
133 | extern void *fsl_get_inb_message(struct rio_mport *mport, int mbox); | |
6ec4bedb LG |
134 | |
135 | #endif |