1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
|
/*
* This file is part of the coreboot project.
*
* Copyright 2015 MediaTek Inc.
*
* 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; version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#include <arch/io.h>
#include <delay.h>
#include <edid.h>
#include <stdlib.h>
#include <string.h>
#include <stddef.h>
#include <soc/addressmap.h>
#include <soc/ddp.h>
#define RDMA_FIFO_PSEUDO_SIZE(bytes) (((bytes) / 16) << 16)
#define RDMA_OUTPUT_VALID_FIFO_THRESHOLD(bytes) ((bytes) / 16)
static void disp_config_main_path_connection(bool dual_dsi_mode)
{
write32(&mmsys_cfg->disp_ovl0_mout_en, OVL0_MOUT_EN_COLOR0);
write32(&mmsys_cfg->disp_color0_sel_in, COLOR0_SEL_IN_OVL0);
write32(&mmsys_cfg->disp_od_mout_en, OD_MOUT_EN_RDMA0);
if (dual_dsi_mode) {
write32(&mmsys_cfg->disp_ufoe_mout_en, UFOE_MOUT_EN_SPLIT1);
write32(&mmsys_cfg->dsi0_sel_in, DSI0_SEL_IN_SPLIT1);
write32(&mmsys_cfg->dsi1_sel_in, DSI1_SEL_IN_SPLIT1);
} else {
write32(&mmsys_cfg->disp_ufoe_mout_en, UFOE_MOUT_EN_DSI0);
write32(&mmsys_cfg->dsi0_sel_in, DSI0_SEL_IN_UFOE);
}
}
static void disp_config_main_path_mutex(void)
{
write32(&disp_mutex->mutex[0].mod, MUTEX_MOD_MAIN_PATH);
/* Clock source from DSI0 */
write32(&disp_mutex->mutex[0].sof, BIT(0));
write32(&disp_mutex->mutex[0].en, BIT(0));
}
static void ovl_set_roi(u32 width, u32 height, u32 color)
{
write32(&disp_ovl[0]->roi_size, height << 16 | width);
write32(&disp_ovl[0]->roi_bgclr, color);
}
static void ovl_layer_enable(void)
{
write32(&disp_ovl[0]->rdma[0].ctrl, BIT(0));
write32(&disp_ovl[0]->rdma[0].mem_gmc_setting, RDMA_MEM_GMC);
setbits_le32(&disp_ovl[0]->src_con, BIT(0));
}
static void rdma_start(void)
{
setbits_le32(&disp_rdma[0]->global_con, RDMA_ENGINE_EN);
}
static void rdma_config(u32 width, u32 height, u32 pixel_clk)
{
u32 threshold;
u32 reg;
/* Config width */
clrsetbits_le32(&disp_rdma[0]->size_con_0, 0x1FFF, width);
/* Config height */
clrsetbits_le32(&disp_rdma[0]->size_con_1, 0xFFFFF, height);
/*
* Enable FIFO underflow since DSI and DPI can't be blocked. Keep the
* FIFO pseudo size reset default of 8 KiB. Set the output threshold to
* 6 microseconds with 7/6 overhead to account for blanking, and with a
* pixel depth of 4 bytes:
*/
threshold = pixel_clk * 4 * 7 / 1000;
reg = RDMA_FIFO_UNDERFLOW_EN |
RDMA_FIFO_PSEUDO_SIZE(8 * KiB) |
RDMA_OUTPUT_VALID_FIFO_THRESHOLD(threshold);
write32(&disp_rdma[0]->fifo_con, reg);
}
static void od_start(u32 width, u32 height)
{
write32(&disp_od->size, width << 16 | height);
write32(&disp_od->cfg, OD_RELAY_MODE);
write32(&disp_od->en, 1);
}
static void ufoe_start(u32 width, u32 height, bool dual_dsi_mode)
{
if (dual_dsi_mode) {
write32(&disp_ufoe->frame_width, width);
write32(&disp_ufoe->frame_height, height);
write32(&disp_ufoe->start, UFO_LR);
} else {
write32(&disp_ufoe->start, UFO_BYPASS);
}
}
static void color_start(u32 width, u32 height)
{
write32(&disp_color[0]->width, width);
write32(&disp_color[0]->height, height);
write32(&disp_color[0]->cfg_main, COLOR_BYPASS_ALL | COLOR_SEQ_SEL);
write32(&disp_color[0]->start, BIT(0));
}
static void split_start(void)
{
write32(&disp_split->start, 1);
}
static void ovl_layer_config(u32 fmt, u32 bpp, u32 width, u32 height)
{
write32(&disp_ovl[0]->layer[0].con, fmt << 12);
write32(&disp_ovl[0]->layer[0].src_size, height << 16 | width);
write32(&disp_ovl[0]->layer[0].pitch, (width * bpp) & 0xFFFF);
ovl_layer_enable();
}
static void main_disp_path_setup(u32 width, u32 height, u32 pixel_clk,
bool dual_dsi_mode)
{
/* Setup OVL */
ovl_set_roi(width, height, 0);
/* Setup RDMA0 */
rdma_config(width, height, pixel_clk);
/* Setup OD */
od_start(width, height);
/* Setup UFOE */
ufoe_start(width, height, dual_dsi_mode);
if (dual_dsi_mode)
split_start();
/* Setup Color */
color_start(width, height);
/* Setup main path connection */
disp_config_main_path_connection(dual_dsi_mode);
/* Setup main path mutex */
disp_config_main_path_mutex();
}
static void disp_clock_on(bool dual_dsi_mode)
{
u32 dual_dsi_cg_con0;
u32 dual_dsi_cg_con1;
if (dual_dsi_mode) {
dual_dsi_cg_con0 = CG_CON0_DISP_SPLIT1;
dual_dsi_cg_con1 = CG_CON1_DSI1_ENGINE | CG_CON1_DSI1_DIGITAL;
} else {
dual_dsi_cg_con0 = 0;
dual_dsi_cg_con1 = 0;
}
clrbits_le32(&mmsys_cfg->mmsys_cg_con0, CG_CON0_SMI_COMMON |
CG_CON0_SMI_LARB0 |
CG_CON0_MUTEX_32K |
CG_CON0_DISP_OVL0 |
CG_CON0_DISP_RDMA0 |
CG_CON0_DISP_COLOR0 |
CG_CON0_DISP_UFOE |
dual_dsi_cg_con0 |
CG_CON0_DISP_OD);
clrbits_le32(&mmsys_cfg->mmsys_cg_con1, CG_CON1_DSI0_ENGINE |
CG_CON1_DSI0_DIGITAL |
dual_dsi_cg_con1);
}
void mtk_ddp_init(bool dual_dsi_mode)
{
disp_clock_on(dual_dsi_mode);
}
void mtk_ddp_mode_set(const struct edid *edid, bool dual_dsi_mode)
{
u32 fmt = OVL_INFMT_RGBA8888;
u32 bpp = edid->framebuffer_bits_per_pixel / 8;
main_disp_path_setup(edid->mode.ha, edid->mode.va,
edid->mode.pixel_clock, dual_dsi_mode);
rdma_start();
ovl_layer_config(fmt, bpp, edid->mode.ha, edid->mode.va);
}
|
