diff options
Diffstat (limited to 'board/freescale/common/dcu_sii9022a.c')
| -rw-r--r-- | board/freescale/common/dcu_sii9022a.c | 153 |
1 files changed, 153 insertions, 0 deletions
diff --git a/board/freescale/common/dcu_sii9022a.c b/board/freescale/common/dcu_sii9022a.c new file mode 100644 index 0000000000..2da627e1f9 --- /dev/null +++ b/board/freescale/common/dcu_sii9022a.c @@ -0,0 +1,153 @@ +/* + * Copyright 2014 Freescale Semiconductor, Inc. + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <asm/io.h> +#include <common.h> +#include <fsl_dcu_fb.h> +#include <i2c.h> +#include <linux/fb.h> + +#define PIXEL_CLK_LSB_REG 0x00 +#define PIXEL_CLK_MSB_REG 0x01 +#define VERT_FREQ_LSB_REG 0x02 +#define VERT_FREQ_MSB_REG 0x03 +#define TOTAL_PIXELS_LSB_REG 0x04 +#define TOTAL_PIXELS_MSB_REG 0x05 +#define TOTAL_LINES_LSB_REG 0x06 +#define TOTAL_LINES_MSB_REG 0x07 +#define TPI_INBUS_FMT_REG 0x08 +#define TPI_INPUT_FMT_REG 0x09 +#define TPI_OUTPUT_FMT_REG 0x0A +#define TPI_SYS_CTRL_REG 0x1A +#define TPI_PWR_STAT_REG 0x1E +#define TPI_AUDIO_HANDING_REG 0x25 +#define TPI_AUDIO_INTF_REG 0x26 +#define TPI_AUDIO_FREQ_REG 0x27 +#define TPI_SET_PAGE_REG 0xBC +#define TPI_SET_OFFSET_REG 0xBD +#define TPI_RW_ACCESS_REG 0xBE +#define TPI_TRANS_MODE_REG 0xC7 + +#define TPI_INBUS_CLOCK_RATIO_1 (1 << 6) +#define TPI_INBUS_FULL_PIXEL_WIDE (1 << 5) +#define TPI_INBUS_RISING_EDGE (1 << 4) +#define TPI_INPUT_CLR_DEPTH_8BIT (0 << 6) +#define TPI_INPUT_VRANGE_EXPAN_AUTO (0 << 2) +#define TPI_INPUT_CLR_RGB (0 << 0) +#define TPI_OUTPUT_CLR_DEPTH_8BIT (0 << 6) +#define TPI_OUTPUT_VRANGE_COMPRE_AUTO (0 << 2) +#define TPI_OUTPUT_CLR_HDMI_RGB (0 << 0) +#define TPI_SYS_TMDS_OUTPUT (0 << 4) +#define TPI_SYS_AV_NORAML (0 << 3) +#define TPI_SYS_AV_MUTE (1 << 3) +#define TPI_SYS_DVI_MODE (0 << 0) +#define TPI_SYS_HDMI_MODE (1 << 0) +#define TPI_PWR_STAT_MASK (3 << 0) +#define TPI_PWR_STAT_D0 (0 << 0) +#define TPI_AUDIO_PASS_BASIC (0 << 0) +#define TPI_AUDIO_INTF_I2S (2 << 6) +#define TPI_AUDIO_INTF_NORMAL (0 << 4) +#define TPI_AUDIO_TYPE_PCM (1 << 0) +#define TPI_AUDIO_SAMP_SIZE_16BIT (1 << 6) +#define TPI_AUDIO_SAMP_FREQ_44K (2 << 3) +#define TPI_SET_PAGE_SII9022A 0x01 +#define TPI_SET_OFFSET_SII9022A 0x82 +#define TPI_RW_EN_SRC_TERMIN (1 << 0) +#define TPI_TRANS_MODE_ENABLE (0 << 7) + +/* Programming of Silicon SIi9022a HDMI Transmitter */ +int dcu_set_dvi_encoder(struct fb_videomode *videomode) +{ + u8 temp; + u16 temp1, temp2; + u32 temp3; + + i2c_set_bus_num(CONFIG_SYS_I2C_DVI_BUS_NUM); + + /* Enable TPI transmitter mode */ + temp = TPI_TRANS_MODE_ENABLE; + i2c_write(CONFIG_SYS_I2C_DVI_ADDR, TPI_TRANS_MODE_REG, 1, &temp, 1); + + /* Enter into D0 state, full operation */ + i2c_read(CONFIG_SYS_I2C_DVI_ADDR, TPI_PWR_STAT_REG, 1, &temp, 1); + temp &= ~TPI_PWR_STAT_MASK; + temp |= TPI_PWR_STAT_D0; + i2c_write(CONFIG_SYS_I2C_DVI_ADDR, TPI_PWR_STAT_REG, 1, &temp, 1); + + /* Enable source termination */ + temp = TPI_SET_PAGE_SII9022A; + i2c_write(CONFIG_SYS_I2C_DVI_ADDR, TPI_SET_PAGE_REG, 1, &temp, 1); + temp = TPI_SET_OFFSET_SII9022A; + i2c_write(CONFIG_SYS_I2C_DVI_ADDR, TPI_SET_OFFSET_REG, 1, &temp, 1); + + i2c_read(CONFIG_SYS_I2C_DVI_ADDR, TPI_RW_ACCESS_REG, 1, &temp, 1); + temp |= TPI_RW_EN_SRC_TERMIN; + i2c_write(CONFIG_SYS_I2C_DVI_ADDR, TPI_RW_ACCESS_REG, 1, &temp, 1); + + /* Set TPI system control */ + temp = TPI_SYS_TMDS_OUTPUT | TPI_SYS_AV_NORAML | TPI_SYS_DVI_MODE; + i2c_write(CONFIG_SYS_I2C_DVI_ADDR, TPI_SYS_CTRL_REG, 1, &temp, 1); + + /* Set pixel clock */ + temp1 = PICOS2KHZ(videomode->pixclock) / 10; + temp = (u8)(temp1 & 0xFF); + i2c_write(CONFIG_SYS_I2C_DVI_ADDR, PIXEL_CLK_LSB_REG, 1, &temp, 1); + temp = (u8)(temp1 >> 8); + i2c_write(CONFIG_SYS_I2C_DVI_ADDR, PIXEL_CLK_MSB_REG, 1, &temp, 1); + + /* Set total pixels per line */ + temp1 = videomode->hsync_len + videomode->left_margin + + videomode->xres + videomode->right_margin; + temp = (u8)(temp1 & 0xFF); + i2c_write(CONFIG_SYS_I2C_DVI_ADDR, TOTAL_PIXELS_LSB_REG, 1, &temp, 1); + temp = (u8)(temp1 >> 8); + i2c_write(CONFIG_SYS_I2C_DVI_ADDR, TOTAL_PIXELS_MSB_REG, 1, &temp, 1); + + /* Set total lines */ + temp2 = videomode->vsync_len + videomode->upper_margin + + videomode->yres + videomode->lower_margin; + temp = (u8)(temp2 & 0xFF); + i2c_write(CONFIG_SYS_I2C_DVI_ADDR, TOTAL_LINES_LSB_REG, 1, &temp, 1); + temp = (u8)(temp2 >> 8); + i2c_write(CONFIG_SYS_I2C_DVI_ADDR, TOTAL_LINES_MSB_REG, 1, &temp, 1); + + /* Set vertical frequency in Hz */ + temp3 = temp1 * temp2; + temp3 = (PICOS2KHZ(videomode->pixclock) * 1000) / temp3; + temp1 = (u16)temp3 * 100; + temp = (u8)(temp1 & 0xFF); + i2c_write(CONFIG_SYS_I2C_DVI_ADDR, VERT_FREQ_LSB_REG, 1, &temp, 1); + temp = (u8)(temp1 >> 8); + i2c_write(CONFIG_SYS_I2C_DVI_ADDR, VERT_FREQ_MSB_REG, 1, &temp, 1); + + /* Set TPI input bus and pixel repetition data */ + temp = TPI_INBUS_CLOCK_RATIO_1 | TPI_INBUS_FULL_PIXEL_WIDE | + TPI_INBUS_RISING_EDGE; + i2c_write(CONFIG_SYS_I2C_DVI_ADDR, TPI_INBUS_FMT_REG, 1, &temp, 1); + + /* Set TPI AVI Input format data */ + temp = TPI_INPUT_CLR_DEPTH_8BIT | TPI_INPUT_VRANGE_EXPAN_AUTO | + TPI_INPUT_CLR_RGB; + i2c_write(CONFIG_SYS_I2C_DVI_ADDR, TPI_INPUT_FMT_REG, 1, &temp, 1); + + /* Set TPI AVI Output format data */ + temp = TPI_OUTPUT_CLR_DEPTH_8BIT | TPI_OUTPUT_VRANGE_COMPRE_AUTO | + TPI_OUTPUT_CLR_HDMI_RGB; + i2c_write(CONFIG_SYS_I2C_DVI_ADDR, TPI_OUTPUT_FMT_REG, 1, &temp, 1); + + /* Set TPI audio configuration write data */ + temp = TPI_AUDIO_PASS_BASIC; + i2c_write(CONFIG_SYS_I2C_DVI_ADDR, TPI_AUDIO_HANDING_REG, 1, &temp, 1); + + temp = TPI_AUDIO_INTF_I2S | TPI_AUDIO_INTF_NORMAL | + TPI_AUDIO_TYPE_PCM; + i2c_write(CONFIG_SYS_I2C_DVI_ADDR, TPI_AUDIO_INTF_REG, 1, &temp, 1); + + temp = TPI_AUDIO_SAMP_SIZE_16BIT | TPI_AUDIO_SAMP_FREQ_44K; + i2c_write(CONFIG_SYS_I2C_DVI_ADDR, TPI_AUDIO_FREQ_REG, 1, &temp, 1); + + return 0; +} |