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gerrit.devboardsforandroid.linaro.org / platform / external / u-boot / 20c700f8daee0b3995c5a6d2c5f69eef1c7acd4e / . / board / freescale / common / dcu_sii9022a.c
blob: 2da627e1f93fd349050fe58a6f5e77611470cc05 [file] [log] [blame]
Wang Huan4081bf42014-09-05 13:52:49 +0800[diff] [blame]1/*
2 * Copyright 2014 Freescale Semiconductor, Inc.
3 *
4 * SPDX-License-Identifier: GPL-2.0+
5 */
6
7#include <asm/io.h>
8#include <common.h>
9#include <fsl_dcu_fb.h>
10#include <i2c.h>
11#include <linux/fb.h>
12
13#define PIXEL_CLK_LSB_REG 0x00
14#define PIXEL_CLK_MSB_REG 0x01
15#define VERT_FREQ_LSB_REG 0x02
16#define VERT_FREQ_MSB_REG 0x03
17#define TOTAL_PIXELS_LSB_REG 0x04
18#define TOTAL_PIXELS_MSB_REG 0x05
19#define TOTAL_LINES_LSB_REG 0x06
20#define TOTAL_LINES_MSB_REG 0x07
21#define TPI_INBUS_FMT_REG 0x08
22#define TPI_INPUT_FMT_REG 0x09
23#define TPI_OUTPUT_FMT_REG 0x0A
24#define TPI_SYS_CTRL_REG 0x1A
25#define TPI_PWR_STAT_REG 0x1E
26#define TPI_AUDIO_HANDING_REG 0x25
27#define TPI_AUDIO_INTF_REG 0x26
28#define TPI_AUDIO_FREQ_REG 0x27
29#define TPI_SET_PAGE_REG 0xBC
30#define TPI_SET_OFFSET_REG 0xBD
31#define TPI_RW_ACCESS_REG 0xBE
32#define TPI_TRANS_MODE_REG 0xC7
33
34#define TPI_INBUS_CLOCK_RATIO_1 (1 << 6)
35#define TPI_INBUS_FULL_PIXEL_WIDE (1 << 5)
36#define TPI_INBUS_RISING_EDGE (1 << 4)
37#define TPI_INPUT_CLR_DEPTH_8BIT (0 << 6)
38#define TPI_INPUT_VRANGE_EXPAN_AUTO (0 << 2)
39#define TPI_INPUT_CLR_RGB (0 << 0)
40#define TPI_OUTPUT_CLR_DEPTH_8BIT (0 << 6)
41#define TPI_OUTPUT_VRANGE_COMPRE_AUTO (0 << 2)
42#define TPI_OUTPUT_CLR_HDMI_RGB (0 << 0)
43#define TPI_SYS_TMDS_OUTPUT (0 << 4)
44#define TPI_SYS_AV_NORAML (0 << 3)
45#define TPI_SYS_AV_MUTE (1 << 3)
46#define TPI_SYS_DVI_MODE (0 << 0)
47#define TPI_SYS_HDMI_MODE (1 << 0)
48#define TPI_PWR_STAT_MASK (3 << 0)
49#define TPI_PWR_STAT_D0 (0 << 0)
50#define TPI_AUDIO_PASS_BASIC (0 << 0)
51#define TPI_AUDIO_INTF_I2S (2 << 6)
52#define TPI_AUDIO_INTF_NORMAL (0 << 4)
53#define TPI_AUDIO_TYPE_PCM (1 << 0)
54#define TPI_AUDIO_SAMP_SIZE_16BIT (1 << 6)
55#define TPI_AUDIO_SAMP_FREQ_44K (2 << 3)
56#define TPI_SET_PAGE_SII9022A 0x01
57#define TPI_SET_OFFSET_SII9022A 0x82
58#define TPI_RW_EN_SRC_TERMIN (1 << 0)
59#define TPI_TRANS_MODE_ENABLE (0 << 7)
60
61/* Programming of Silicon SIi9022a HDMI Transmitter */
62int dcu_set_dvi_encoder(struct fb_videomode *videomode)
63{
64 u8 temp;
65 u16 temp1, temp2;
66 u32 temp3;
67
68 i2c_set_bus_num(CONFIG_SYS_I2C_DVI_BUS_NUM);
69
70 /* Enable TPI transmitter mode */
71 temp = TPI_TRANS_MODE_ENABLE;
72 i2c_write(CONFIG_SYS_I2C_DVI_ADDR, TPI_TRANS_MODE_REG, 1, &temp, 1);
73
74 /* Enter into D0 state, full operation */
75 i2c_read(CONFIG_SYS_I2C_DVI_ADDR, TPI_PWR_STAT_REG, 1, &temp, 1);
76 temp &= ~TPI_PWR_STAT_MASK;
77 temp |= TPI_PWR_STAT_D0;
78 i2c_write(CONFIG_SYS_I2C_DVI_ADDR, TPI_PWR_STAT_REG, 1, &temp, 1);
79
80 /* Enable source termination */
81 temp = TPI_SET_PAGE_SII9022A;
82 i2c_write(CONFIG_SYS_I2C_DVI_ADDR, TPI_SET_PAGE_REG, 1, &temp, 1);
83 temp = TPI_SET_OFFSET_SII9022A;
84 i2c_write(CONFIG_SYS_I2C_DVI_ADDR, TPI_SET_OFFSET_REG, 1, &temp, 1);
85
86 i2c_read(CONFIG_SYS_I2C_DVI_ADDR, TPI_RW_ACCESS_REG, 1, &temp, 1);
87 temp |= TPI_RW_EN_SRC_TERMIN;
88 i2c_write(CONFIG_SYS_I2C_DVI_ADDR, TPI_RW_ACCESS_REG, 1, &temp, 1);
89
90 /* Set TPI system control */
91 temp = TPI_SYS_TMDS_OUTPUT | TPI_SYS_AV_NORAML | TPI_SYS_DVI_MODE;
92 i2c_write(CONFIG_SYS_I2C_DVI_ADDR, TPI_SYS_CTRL_REG, 1, &temp, 1);
93
94 /* Set pixel clock */
95 temp1 = PICOS2KHZ(videomode->pixclock) / 10;
96 temp = (u8)(temp1 & 0xFF);
97 i2c_write(CONFIG_SYS_I2C_DVI_ADDR, PIXEL_CLK_LSB_REG, 1, &temp, 1);
98 temp = (u8)(temp1 >> 8);
99 i2c_write(CONFIG_SYS_I2C_DVI_ADDR, PIXEL_CLK_MSB_REG, 1, &temp, 1);
100
101 /* Set total pixels per line */
102 temp1 = videomode->hsync_len + videomode->left_margin +
103 videomode->xres + videomode->right_margin;
104 temp = (u8)(temp1 & 0xFF);
105 i2c_write(CONFIG_SYS_I2C_DVI_ADDR, TOTAL_PIXELS_LSB_REG, 1, &temp, 1);
106 temp = (u8)(temp1 >> 8);
107 i2c_write(CONFIG_SYS_I2C_DVI_ADDR, TOTAL_PIXELS_MSB_REG, 1, &temp, 1);
108
109 /* Set total lines */
110 temp2 = videomode->vsync_len + videomode->upper_margin +
111 videomode->yres + videomode->lower_margin;
112 temp = (u8)(temp2 & 0xFF);
113 i2c_write(CONFIG_SYS_I2C_DVI_ADDR, TOTAL_LINES_LSB_REG, 1, &temp, 1);
114 temp = (u8)(temp2 >> 8);
115 i2c_write(CONFIG_SYS_I2C_DVI_ADDR, TOTAL_LINES_MSB_REG, 1, &temp, 1);
116
117 /* Set vertical frequency in Hz */
118 temp3 = temp1 * temp2;
119 temp3 = (PICOS2KHZ(videomode->pixclock) * 1000) / temp3;
120 temp1 = (u16)temp3 * 100;
121 temp = (u8)(temp1 & 0xFF);
122 i2c_write(CONFIG_SYS_I2C_DVI_ADDR, VERT_FREQ_LSB_REG, 1, &temp, 1);
123 temp = (u8)(temp1 >> 8);
124 i2c_write(CONFIG_SYS_I2C_DVI_ADDR, VERT_FREQ_MSB_REG, 1, &temp, 1);
125
126 /* Set TPI input bus and pixel repetition data */
127 temp = TPI_INBUS_CLOCK_RATIO_1 | TPI_INBUS_FULL_PIXEL_WIDE |
128 TPI_INBUS_RISING_EDGE;
129 i2c_write(CONFIG_SYS_I2C_DVI_ADDR, TPI_INBUS_FMT_REG, 1, &temp, 1);
130
131 /* Set TPI AVI Input format data */
132 temp = TPI_INPUT_CLR_DEPTH_8BIT | TPI_INPUT_VRANGE_EXPAN_AUTO |
133 TPI_INPUT_CLR_RGB;
134 i2c_write(CONFIG_SYS_I2C_DVI_ADDR, TPI_INPUT_FMT_REG, 1, &temp, 1);
135
136 /* Set TPI AVI Output format data */
137 temp = TPI_OUTPUT_CLR_DEPTH_8BIT | TPI_OUTPUT_VRANGE_COMPRE_AUTO |
138 TPI_OUTPUT_CLR_HDMI_RGB;
139 i2c_write(CONFIG_SYS_I2C_DVI_ADDR, TPI_OUTPUT_FMT_REG, 1, &temp, 1);
140
141 /* Set TPI audio configuration write data */
142 temp = TPI_AUDIO_PASS_BASIC;
143 i2c_write(CONFIG_SYS_I2C_DVI_ADDR, TPI_AUDIO_HANDING_REG, 1, &temp, 1);
144
145 temp = TPI_AUDIO_INTF_I2S | TPI_AUDIO_INTF_NORMAL |
146 TPI_AUDIO_TYPE_PCM;
147 i2c_write(CONFIG_SYS_I2C_DVI_ADDR, TPI_AUDIO_INTF_REG, 1, &temp, 1);
148
149 temp = TPI_AUDIO_SAMP_SIZE_16BIT | TPI_AUDIO_SAMP_FREQ_44K;
150 i2c_write(CONFIG_SYS_I2C_DVI_ADDR, TPI_AUDIO_FREQ_REG, 1, &temp, 1);
151
152 return 0;
153}