xref: /linux/drivers/gpu/drm/meson/meson_dw_hdmi.h (revision 56fb34d86e875dbb0d3e6a81c5d3d035db373031)
1 /* SPDX-License-Identifier: GPL-2.0-or-later */
2 /*
3  * Copyright (C) 2016 BayLibre, SAS
4  * Author: Neil Armstrong <narmstrong@baylibre.com>
5  * Copyright (C) 2015 Amlogic, Inc. All rights reserved.
6  */
7 
8 #ifndef __MESON_DW_HDMI_H
9 #define __MESON_DW_HDMI_H
10 
11 /*
12  * Bit 15-10: RW Reserved. Default 1 starting from G12A
13  * Bit 9 RW sw_reset_i2c starting from G12A
14  * Bit 8 RW sw_reset_axiarb starting from G12A
15  * Bit 7 RW Reserved. Default 1, sw_reset_emp starting from G12A
16  * Bit 6 RW Reserved. Default 1, sw_reset_flt starting from G12A
17  * Bit 5 RW Reserved. Default 1, sw_reset_hdcp22 starting from G12A
18  * Bit 4 RW sw_reset_phyif: PHY interface. 1=Apply reset; 0=Release from reset.
19  *     Default 1.
20  * Bit 3 RW sw_reset_intr: interrupt module. 1=Apply reset;
21  *     0=Release from reset.
22  *     Default 1.
23  * Bit 2 RW sw_reset_mem: KSV/REVOC mem. 1=Apply reset; 0=Release from reset.
24  *     Default 1.
25  * Bit 1 RW sw_reset_rnd: random number interface to HDCP. 1=Apply reset;
26  *     0=Release from reset. Default 1.
27  * Bit 0 RW sw_reset_core: connects to IP's ~irstz. 1=Apply reset;
28  *     0=Release from reset. Default 1.
29  */
30 #define HDMITX_TOP_SW_RESET                     (0x000)
31 
32 /*
33  * Bit 31 RW free_clk_en: 0=Enable clock gating for power saving; 1= Disable
34  * Bit 12 RW i2s_ws_inv:1=Invert i2s_ws; 0=No invert. Default 0.
35  * Bit 11 RW i2s_clk_inv: 1=Invert i2s_clk; 0=No invert. Default 0.
36  * Bit 10 RW spdif_clk_inv: 1=Invert spdif_clk; 0=No invert. Default 0.
37  * Bit 9 RW tmds_clk_inv: 1=Invert tmds_clk; 0=No invert. Default 0.
38  * Bit 8 RW pixel_clk_inv: 1=Invert pixel_clk; 0=No invert. Default 0.
39  * Bit 7 RW hdcp22_skpclk_en: starting from G12A, 1=enable; 0=disable
40  * Bit 6 RW hdcp22_esmclk_en: starting from G12A, 1=enable; 0=disable
41  * Bit 5 RW hdcp22_tmdsclk_en: starting from G12A, 1=enable; 0=disable
42  * Bit 4 RW cec_clk_en: 1=enable cec_clk; 0=disable. Default 0. Reserved for G12A
43  * Bit 3 RW i2s_clk_en: 1=enable i2s_clk; 0=disable. Default 0.
44  * Bit 2 RW spdif_clk_en: 1=enable spdif_clk; 0=disable. Default 0.
45  * Bit 1 RW tmds_clk_en: 1=enable tmds_clk;  0=disable. Default 0.
46  * Bit 0 RW pixel_clk_en: 1=enable pixel_clk; 0=disable. Default 0.
47  */
48 #define HDMITX_TOP_CLK_CNTL                     (0x001)
49 
50 /*
51  * Bit 31:28 RW rxsense_glitch_width: starting from G12A
52  * Bit 27:16 RW rxsense_valid_width: starting from G12A
53  * Bit 11: 0 RW hpd_valid_width: filter out width <= M*1024.    Default 0.
54  * Bit 15:12 RW hpd_glitch_width: filter out glitch <= N.       Default 0.
55  */
56 #define HDMITX_TOP_HPD_FILTER                   (0x002)
57 
58 /*
59  * intr_maskn: MASK_N, one bit per interrupt source.
60  *     1=Enable interrupt source; 0=Disable interrupt source. Default 0.
61  * [  7] rxsense_fall starting from G12A
62  * [  6] rxsense_rise starting from G12A
63  * [  5] err_i2c_timeout starting from G12A
64  * [  4] hdcp22_rndnum_err
65  * [  3] nonce_rfrsh_rise
66  * [  2] hpd_fall_intr
67  * [  1] hpd_rise_intr
68  * [  0] core_intr
69  */
70 #define HDMITX_TOP_INTR_MASKN                   (0x003)
71 
72 /*
73  * Bit 30: 0 RW intr_stat: For each bit, write 1 to manually set the interrupt
74  *     bit, read back the interrupt status.
75  * Bit    31 R  IP interrupt status
76  * Bit     7 RW rxsense_fall starting from G12A
77  * Bit     6 RW rxsense_rise starting from G12A
78  * Bit     5 RW err_i2c_timeout starting from G12A
79  * Bit     2 RW hpd_fall
80  * Bit     1 RW hpd_rise
81  * Bit     0 RW IP interrupt
82  */
83 #define HDMITX_TOP_INTR_STAT                    (0x004)
84 
85 /*
86  * [7]    rxsense_fall starting from G12A
87  * [6]    rxsense_rise starting from G12A
88  * [5]    err_i2c_timeout starting from G12A
89  * [4]	  hdcp22_rndnum_err
90  * [3]	  nonce_rfrsh_rise
91  * [2]	  hpd_fall
92  * [1]	  hpd_rise
93  * [0]	  core_intr_rise
94  */
95 #define HDMITX_TOP_INTR_STAT_CLR                (0x005)
96 
97 #define HDMITX_TOP_INTR_CORE		BIT(0)
98 #define HDMITX_TOP_INTR_HPD_RISE	BIT(1)
99 #define HDMITX_TOP_INTR_HPD_FALL	BIT(2)
100 #define HDMITX_TOP_INTR_RXSENSE_RISE	BIT(6)
101 #define HDMITX_TOP_INTR_RXSENSE_FALL	BIT(7)
102 
103 /*
104  * Bit 14:12 RW tmds_sel: 3'b000=Output zero; 3'b001=Output normal TMDS data;
105  *     3'b010=Output PRBS data; 3'b100=Output shift pattern. Default 0.
106  * Bit 11: 9 RW shift_pttn_repeat: 0=New pattern every clk cycle; 1=New pattern
107  *     every 2 clk cycles; ...; 7=New pattern every 8 clk cycles. Default 0.
108  * Bit 8 RW shift_pttn_en: 1= Enable shift pattern generator; 0=Disable.
109  *     Default 0.
110  * Bit 4: 3 RW prbs_pttn_mode: 0=PRBS11; 1=PRBS15; 2=PRBS7; 3=PRBS31. Default 0.
111  * Bit 2: 1 RW prbs_pttn_width: 0=idle; 1=output 8-bit pattern;
112  *     2=Output 1-bit pattern; 3=output 10-bit pattern. Default 0.
113  * Bit 0 RW prbs_pttn_en: 1=Enable PRBS generator; 0=Disable. Default 0.
114  */
115 #define HDMITX_TOP_BIST_CNTL                    (0x006)
116 
117 /* Bit 29:20 RW shift_pttn_data[59:50]. Default 0. */
118 /* Bit 19:10 RW shift_pttn_data[69:60]. Default 0. */
119 /* Bit  9: 0 RW shift_pttn_data[79:70]. Default 0. */
120 #define HDMITX_TOP_SHIFT_PTTN_012               (0x007)
121 
122 /* Bit 29:20 RW shift_pttn_data[29:20]. Default 0. */
123 /* Bit 19:10 RW shift_pttn_data[39:30]. Default 0. */
124 /* Bit  9: 0 RW shift_pttn_data[49:40]. Default 0. */
125 #define HDMITX_TOP_SHIFT_PTTN_345               (0x008)
126 
127 /* Bit 19:10 RW shift_pttn_data[ 9: 0]. Default 0. */
128 /* Bit  9: 0 RW shift_pttn_data[19:10]. Default 0. */
129 #define HDMITX_TOP_SHIFT_PTTN_67                (0x009)
130 
131 /* Bit 25:16 RW tmds_clk_pttn[19:10]. Default 0. */
132 /* Bit  9: 0 RW tmds_clk_pttn[ 9: 0]. Default 0. */
133 #define HDMITX_TOP_TMDS_CLK_PTTN_01             (0x00A)
134 
135 /* Bit 25:16 RW tmds_clk_pttn[39:30]. Default 0. */
136 /* Bit  9: 0 RW tmds_clk_pttn[29:20]. Default 0. */
137 #define HDMITX_TOP_TMDS_CLK_PTTN_23             (0x00B)
138 
139 /*
140  * Bit 1 RW shift_tmds_clk_pttn:1=Enable shifting clk pattern,
141  * used when TMDS CLK rate = TMDS character rate /4. Default 0.
142  * Bit 0 R  Reserved. Default 0.
143  * [	1] shift_tmds_clk_pttn
144  * [	0] load_tmds_clk_pttn
145  */
146 #define HDMITX_TOP_TMDS_CLK_PTTN_CNTL           (0x00C)
147 
148 /*
149  * Bit 0 RW revocmem_wr_fail: Read back 1 to indicate Host write REVOC MEM
150  * failure, write 1 to clear the failure flag.  Default 0.
151  */
152 #define HDMITX_TOP_REVOCMEM_STAT                (0x00D)
153 
154 /*
155  * Bit	   1 R	filtered RxSense status
156  * Bit     0 R  filtered HPD status.
157  */
158 #define HDMITX_TOP_STAT0                        (0x00E)
159 
160 #endif /* __MESON_DW_HDMI_H */
161