1 | /* SPDX-License-Identifier: GPL-2.0-or-later */ |
2 | /* |
3 | * Freescale MPC85xx/MPC86xx RapidIO support |
4 | * |
5 | * Copyright 2009 Sysgo AG |
6 | * Thomas Moll <thomas.moll@sysgo.com> |
7 | * - fixed maintenance access routines, check for aligned access |
8 | * |
9 | * Copyright 2009 Integrated Device Technology, Inc. |
10 | * Alex Bounine <alexandre.bounine@idt.com> |
11 | * - Added Port-Write message handling |
12 | * - Added Machine Check exception handling |
13 | * |
14 | * Copyright (C) 2007, 2008, 2010, 2011 Freescale Semiconductor, Inc. |
15 | * Zhang Wei <wei.zhang@freescale.com> |
16 | * Lian Minghuan-B31939 <Minghuan.Lian@freescale.com> |
17 | * Liu Gang <Gang.Liu@freescale.com> |
18 | * |
19 | * Copyright 2005 MontaVista Software, Inc. |
20 | * Matt Porter <mporter@kernel.crashing.org> |
21 | */ |
22 | |
23 | #ifndef __FSL_RIO_H |
24 | #define __FSL_RIO_H |
25 | |
26 | #include <linux/rio.h> |
27 | #include <linux/rio_drv.h> |
28 | #include <linux/kfifo.h> |
29 | |
30 | #define RIO_REGS_WIN(mport) (((struct rio_priv *)(mport->priv))->regs_win) |
31 | |
32 | #define RIO_MAINT_WIN_SIZE 0x400000 |
33 | #define RIO_LTLEDCSR 0x0608 |
34 | |
35 | #define DOORBELL_ROWAR_EN 0x80000000 |
36 | #define DOORBELL_ROWAR_TFLOWLV 0x08000000 /* highest priority level */ |
37 | #define DOORBELL_ROWAR_PCI 0x02000000 /* PCI window */ |
38 | #define DOORBELL_ROWAR_NREAD 0x00040000 /* NREAD */ |
39 | #define DOORBELL_ROWAR_MAINTRD 0x00070000 /* maintenance read */ |
40 | #define DOORBELL_ROWAR_RES 0x00002000 /* wrtpy: reserved */ |
41 | #define DOORBELL_ROWAR_MAINTWD 0x00007000 |
42 | #define DOORBELL_ROWAR_SIZE 0x0000000b /* window size is 4k */ |
43 | |
44 | #define RIO_ATMU_REGS_PORT1_OFFSET 0x10c00 |
45 | #define RIO_ATMU_REGS_PORT2_OFFSET 0x10e00 |
46 | #define RIO_S_DBELL_REGS_OFFSET 0x13400 |
47 | #define RIO_S_PW_REGS_OFFSET 0x134e0 |
48 | #define RIO_ATMU_REGS_DBELL_OFFSET 0x10C40 |
49 | #define RIO_INB_ATMU_REGS_PORT1_OFFSET 0x10d60 |
50 | #define RIO_INB_ATMU_REGS_PORT2_OFFSET 0x10f60 |
51 | |
52 | #define MAX_MSG_UNIT_NUM 2 |
53 | #define MAX_PORT_NUM 4 |
54 | #define RIO_INB_ATMU_COUNT 4 |
55 | |
56 | struct rio_atmu_regs { |
57 | u32 rowtar; |
58 | u32 rowtear; |
59 | u32 rowbar; |
60 | u32 pad1; |
61 | u32 rowar; |
62 | u32 pad2[3]; |
63 | }; |
64 | |
65 | struct rio_inb_atmu_regs { |
66 | u32 riwtar; |
67 | u32 pad1; |
68 | u32 riwbar; |
69 | u32 pad2; |
70 | u32 riwar; |
71 | u32 pad3[3]; |
72 | }; |
73 | |
74 | struct rio_dbell_ring { |
75 | void *virt; |
76 | dma_addr_t phys; |
77 | }; |
78 | |
79 | struct rio_port_write_msg { |
80 | void *virt; |
81 | dma_addr_t phys; |
82 | u32 msg_count; |
83 | u32 err_count; |
84 | u32 discard_count; |
85 | }; |
86 | |
87 | struct fsl_rio_dbell { |
88 | struct rio_mport *mport[MAX_PORT_NUM]; |
89 | struct device *dev; |
90 | struct rio_dbell_regs __iomem *dbell_regs; |
91 | struct rio_dbell_ring dbell_ring; |
92 | int bellirq; |
93 | }; |
94 | |
95 | struct fsl_rio_pw { |
96 | struct rio_mport *mport[MAX_PORT_NUM]; |
97 | struct device *dev; |
98 | struct rio_pw_regs __iomem *pw_regs; |
99 | struct rio_port_write_msg port_write_msg; |
100 | int pwirq; |
101 | struct work_struct pw_work; |
102 | struct kfifo pw_fifo; |
103 | spinlock_t pw_fifo_lock; |
104 | }; |
105 | |
106 | struct rio_priv { |
107 | struct device *dev; |
108 | void __iomem *regs_win; |
109 | struct rio_atmu_regs __iomem *atmu_regs; |
110 | struct rio_atmu_regs __iomem *maint_atmu_regs; |
111 | struct rio_inb_atmu_regs __iomem *inb_atmu_regs; |
112 | void __iomem *maint_win; |
113 | void *rmm_handle; /* RapidIO message manager(unit) Handle */ |
114 | }; |
115 | |
116 | extern void __iomem *rio_regs_win; |
117 | extern void __iomem *rmu_regs_win; |
118 | |
119 | extern resource_size_t rio_law_start; |
120 | |
121 | extern struct fsl_rio_dbell *dbell; |
122 | extern struct fsl_rio_pw *pw; |
123 | |
124 | extern int fsl_rio_setup_rmu(struct rio_mport *mport, |
125 | struct device_node *node); |
126 | extern int fsl_rio_port_write_init(struct fsl_rio_pw *pw); |
127 | extern int fsl_rio_pw_enable(struct rio_mport *mport, int enable); |
128 | extern void fsl_rio_port_error_handler(int offset); |
129 | extern int fsl_rio_doorbell_init(struct fsl_rio_dbell *dbell); |
130 | |
131 | extern int fsl_rio_doorbell_send(struct rio_mport *mport, |
132 | int index, u16 destid, u16 data); |
133 | extern int fsl_add_outb_message(struct rio_mport *mport, |
134 | struct rio_dev *rdev, |
135 | int mbox, void *buffer, size_t len); |
136 | extern int fsl_open_outb_mbox(struct rio_mport *mport, |
137 | void *dev_id, int mbox, int entries); |
138 | extern void fsl_close_outb_mbox(struct rio_mport *mport, int mbox); |
139 | extern int fsl_open_inb_mbox(struct rio_mport *mport, |
140 | void *dev_id, int mbox, int entries); |
141 | extern void fsl_close_inb_mbox(struct rio_mport *mport, int mbox); |
142 | extern int fsl_add_inb_buffer(struct rio_mport *mport, int mbox, void *buf); |
143 | extern void *fsl_get_inb_message(struct rio_mport *mport, int mbox); |
144 | |
145 | #endif |
146 | |