1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /* Hardware definitions for SSI.
3  *
4  * Copyright (C) 2010 Nokia Corporation. All rights reserved.
5  *
6  * Contact: Carlos Chinea <carlos.chinea@nokia.com>
7  */
8 
9 #ifndef __OMAP_SSI_REGS_H__
10 #define __OMAP_SSI_REGS_H__
11 
12 /*
13  * SSI SYS registers
14  */
15 #define SSI_REVISION_REG    0
16 #  define SSI_REV_MAJOR    0xf0
17 #  define SSI_REV_MINOR    0xf
18 #define SSI_SYSCONFIG_REG    0x10
19 #  define SSI_AUTOIDLE    (1 << 0)
20 #  define SSI_SOFTRESET    (1 << 1)
21 #  define SSI_SIDLEMODE_FORCE  0
22 #  define SSI_SIDLEMODE_NO    (1 << 3)
23 #  define SSI_SIDLEMODE_SMART  (1 << 4)
24 #  define SSI_SIDLEMODE_MASK  0x18
25 #  define SSI_MIDLEMODE_FORCE  0
26 #  define SSI_MIDLEMODE_NO    (1 << 12)
27 #  define SSI_MIDLEMODE_SMART  (1 << 13)
28 #  define SSI_MIDLEMODE_MASK  0x3000
29 #define SSI_SYSSTATUS_REG    0x14
30 #  define SSI_RESETDONE    1
31 #define SSI_MPU_STATUS_REG(port, irq)  (0x808 + ((port) * 0x10) + ((irq) * 2))
32 #define SSI_MPU_ENABLE_REG(port, irq)  (0x80c + ((port) * 0x10) + ((irq) * 8))
33 #  define SSI_DATAACCEPT(channel)    (1 << (channel))
34 #  define SSI_DATAAVAILABLE(channel)  (1 << ((channel) + 8))
35 #  define SSI_DATAOVERRUN(channel)    (1 << ((channel) + 16))
36 #  define SSI_ERROROCCURED      (1 << 24)
37 #  define SSI_BREAKDETECTED    (1 << 25)
38 #define SSI_GDD_MPU_IRQ_STATUS_REG  0x0800
39 #define SSI_GDD_MPU_IRQ_ENABLE_REG  0x0804
40 #  define SSI_GDD_LCH(channel)  (1 << (channel))
41 #define SSI_WAKE_REG(port)    (0xc00 + ((port) * 0x10))
42 #define SSI_CLEAR_WAKE_REG(port)  (0xc04 + ((port) * 0x10))
43 #define SSI_SET_WAKE_REG(port)    (0xc08 + ((port) * 0x10))
44 #  define SSI_WAKE(channel)  (1 << (channel))
45 #  define SSI_WAKE_MASK    0xff
46 
47 /*
48  * SSI SST registers
49  */
50 #define SSI_SST_ID_REG      0
51 #define SSI_SST_MODE_REG    4
52 #  define SSI_MODE_VAL_MASK  3
53 #  define SSI_MODE_SLEEP    0
54 #  define SSI_MODE_STREAM    1
55 #  define SSI_MODE_FRAME    2
56 #  define SSI_MODE_MULTIPOINTS  3
57 #define SSI_SST_FRAMESIZE_REG    8
58 #  define SSI_FRAMESIZE_DEFAULT  31
59 #define SSI_SST_TXSTATE_REG    0xc
60 #  define  SSI_TXSTATE_IDLE  0
61 #define SSI_SST_BUFSTATE_REG    0x10
62 #  define  SSI_FULL(channel)  (1 << (channel))
63 #define SSI_SST_DIVISOR_REG    0x18
64 #  define SSI_MAX_DIVISOR    127
65 #define SSI_SST_BREAK_REG    0x20
66 #define SSI_SST_CHANNELS_REG    0x24
67 #  define SSI_CHANNELS_DEFAULT  4
68 #define SSI_SST_ARBMODE_REG    0x28
69 #  define SSI_ARBMODE_ROUNDROBIN  0
70 #  define SSI_ARBMODE_PRIORITY  1
71 #define SSI_SST_BUFFER_CH_REG(channel)  (0x80 + ((channel) * 4))
72 #define SSI_SST_SWAPBUF_CH_REG(channel)  (0xc0 + ((channel) * 4))
73 
74 /*
75  * SSI SSR registers
76  */
77 #define SSI_SSR_ID_REG      0
78 #define SSI_SSR_MODE_REG    4
79 #define SSI_SSR_FRAMESIZE_REG    8
80 #define SSI_SSR_RXSTATE_REG    0xc
81 #define SSI_SSR_BUFSTATE_REG    0x10
82 #  define SSI_NOTEMPTY(channel)  (1 << (channel))
83 #define SSI_SSR_BREAK_REG    0x1c
84 #define SSI_SSR_ERROR_REG    0x20
85 #define SSI_SSR_ERRORACK_REG    0x24
86 #define SSI_SSR_OVERRUN_REG    0x2c
87 #define SSI_SSR_OVERRUNACK_REG    0x30
88 #define SSI_SSR_TIMEOUT_REG    0x34
89 #  define SSI_TIMEOUT_DEFAULT  0
90 #define SSI_SSR_CHANNELS_REG    0x28
91 #define SSI_SSR_BUFFER_CH_REG(channel)  (0x80 + ((channel) * 4))
92 #define SSI_SSR_SWAPBUF_CH_REG(channel)  (0xc0 + ((channel) * 4))
93 
94 /*
95  * SSI GDD registers
96  */
97 #define SSI_GDD_HW_ID_REG    0
98 #define SSI_GDD_PPORT_ID_REG    0x10
99 #define SSI_GDD_MPORT_ID_REG    0x14
100 #define SSI_GDD_PPORT_SR_REG    0x20
101 #define SSI_GDD_MPORT_SR_REG    0x24
102 #  define SSI_ACTIVE_LCH_NUM_MASK  0xff
103 #define SSI_GDD_TEST_REG    0x40
104 #  define SSI_TEST      1
105 #define SSI_GDD_GCR_REG      0x100
106 #  define  SSI_CLK_AUTOGATING_ON  (1 << 3)
107 #  define  SSI_FREE    (1 << 2)
108 #  define  SSI_SWITCH_OFF    (1 << 0)
109 #define SSI_GDD_GRST_REG    0x200
110 #  define SSI_SWRESET    1
111 #define SSI_GDD_CSDP_REG(channel)  (0x800 + ((channel) * 0x40))
112 #  define SSI_DST_BURST_EN_MASK  0xc000
113 #  define SSI_DST_SINGLE_ACCESS0  0
114 #  define SSI_DST_SINGLE_ACCESS  (1 << 14)
115 #  define SSI_DST_BURST_4x32_BIT  (2 << 14)
116 #  define SSI_DST_BURST_8x32_BIT  (3 << 14)
117 #  define SSI_DST_MASK    0x1e00
118 #  define SSI_DST_MEMORY_PORT  (8 << 9)
119 #  define SSI_DST_PERIPHERAL_PORT  (9 << 9)
120 #  define SSI_SRC_BURST_EN_MASK  0x180
121 #  define SSI_SRC_SINGLE_ACCESS0  0
122 #  define SSI_SRC_SINGLE_ACCESS  (1 << 7)
123 #  define SSI_SRC_BURST_4x32_BIT  (2 << 7)
124 #  define SSI_SRC_BURST_8x32_BIT  (3 << 7)
125 #  define SSI_SRC_MASK    0x3c
126 #  define SSI_SRC_MEMORY_PORT  (8 << 2)
127 #  define SSI_SRC_PERIPHERAL_PORT  (9 << 2)
128 #  define SSI_DATA_TYPE_MASK  3
129 #  define SSI_DATA_TYPE_S32  2
130 #define SSI_GDD_CCR_REG(channel)  (0x802 + ((channel) * 0x40))
131 #  define SSI_DST_AMODE_MASK  (3 << 14)
132 #  define SSI_DST_AMODE_CONST  0
133 #  define SSI_DST_AMODE_POSTINC  (1 << 12)
134 #  define SSI_SRC_AMODE_MASK  (3 << 12)
135 #  define SSI_SRC_AMODE_CONST  0
136 #  define SSI_SRC_AMODE_POSTINC  (1 << 12)
137 #  define SSI_CCR_ENABLE    (1 << 7)
138 #  define SSI_CCR_SYNC_MASK  0x1f
139 #define SSI_GDD_CICR_REG(channel)  (0x804 + ((channel) * 0x40))
140 #  define SSI_BLOCK_IE    (1 << 5)
141 #  define SSI_HALF_IE    (1 << 2)
142 #  define SSI_TOUT_IE    (1 << 0)
143 #define SSI_GDD_CSR_REG(channel)  (0x806 + ((channel) * 0x40))
144 #  define SSI_CSR_SYNC    (1 << 6)
145 #  define SSI_CSR_BLOCK    (1 << 5)
146 #  define SSI_CSR_HALF    (1 << 2)
147 #  define SSI_CSR_TOUR    (1 << 0)
148 #define SSI_GDD_CSSA_REG(channel)  (0x808 + ((channel) * 0x40))
149 #define SSI_GDD_CDSA_REG(channel)  (0x80c + ((channel) * 0x40))
150 #define SSI_GDD_CEN_REG(channel)  (0x810 + ((channel) * 0x40))
151 #define SSI_GDD_CSAC_REG(channel)  (0x818 + ((channel) * 0x40))
152 #define SSI_GDD_CDAC_REG(channel)  (0x81a + ((channel) * 0x40))
153 #define SSI_GDD_CLNK_CTRL_REG(channel)  (0x828 + ((channel) * 0x40))
154 #  define SSI_ENABLE_LNK    (1 << 15)
155 #  define SSI_STOP_LNK    (1 << 14)
156 #  define SSI_NEXT_CH_ID_MASK  0xf
157 
158 #endif /* __OMAP_SSI_REGS_H__ */
159