This patch adds the CH7301 HDMI options and the common configuration for DCU on LS1021AQDS board. Signed-off-by: Xiubo Li <Li.Xiubo@freescale.com> Signed-off-by: Alison Wang <alison.wang@freescale.com> Cc: Jason Jin <Jason.Jin@freescale.com> Reviewed-by: York Sun <yorksun@freescale.com>master
parent
0181937fa3
commit
dd04832d52
@ -0,0 +1,92 @@ |
||||
/*
|
||||
* Copyright 2014 Freescale Semiconductor, Inc. |
||||
* |
||||
* FSL DCU Framebuffer driver |
||||
* |
||||
* SPDX-License-Identifier: GPL-2.0+ |
||||
*/ |
||||
|
||||
#include <asm/io.h> |
||||
#include <common.h> |
||||
#include <fsl_dcu_fb.h> |
||||
#include <i2c.h> |
||||
#include "div64.h" |
||||
#include "../common/diu_ch7301.h" |
||||
#include "ls1021aqds_qixis.h" |
||||
|
||||
DECLARE_GLOBAL_DATA_PTR; |
||||
|
||||
static int select_i2c_ch_pca9547(u8 ch) |
||||
{ |
||||
int ret; |
||||
|
||||
ret = i2c_write(I2C_MUX_PCA_ADDR_PRI, 0, 1, &ch, 1); |
||||
if (ret) { |
||||
puts("PCA: failed to select proper channel\n"); |
||||
return ret; |
||||
} |
||||
|
||||
return 0; |
||||
} |
||||
|
||||
unsigned int dcu_set_pixel_clock(unsigned int pixclock) |
||||
{ |
||||
unsigned long long div; |
||||
|
||||
div = (unsigned long long)(gd->bus_clk / 1000); |
||||
div *= (unsigned long long)pixclock; |
||||
do_div(div, 1000000000); |
||||
|
||||
return div; |
||||
} |
||||
|
||||
int platform_dcu_init(unsigned int xres, unsigned int yres, |
||||
const char *port, |
||||
struct fb_videomode *dcu_fb_videomode) |
||||
{ |
||||
const char *name; |
||||
unsigned int pixel_format; |
||||
int ret; |
||||
u8 ch; |
||||
|
||||
/* Mux I2C3+I2C4 as HSYNC+VSYNC */ |
||||
ret = i2c_read(CONFIG_SYS_I2C_QIXIS_ADDR, QIXIS_DCU_BRDCFG5, |
||||
1, &ch, 1); |
||||
if (ret) { |
||||
printf("Error: failed to read I2C @%02x\n", |
||||
CONFIG_SYS_I2C_QIXIS_ADDR); |
||||
return ret; |
||||
} |
||||
ch &= 0x1F; |
||||
ch |= 0xA0; |
||||
ret = i2c_write(CONFIG_SYS_I2C_QIXIS_ADDR, QIXIS_DCU_BRDCFG5, |
||||
1, &ch, 1); |
||||
if (ret) { |
||||
printf("Error: failed to write I2C @%02x\n", |
||||
CONFIG_SYS_I2C_QIXIS_ADDR); |
||||
return ret; |
||||
} |
||||
|
||||
if (strncmp(port, "hdmi", 4) == 0) { |
||||
unsigned long pixval; |
||||
|
||||
name = "HDMI"; |
||||
|
||||
pixval = 1000000000 / dcu_fb_videomode->pixclock; |
||||
pixval *= 1000; |
||||
|
||||
i2c_set_bus_num(CONFIG_SYS_I2C_DVI_BUS_NUM); |
||||
select_i2c_ch_pca9547(I2C_MUX_CH_CH7301); |
||||
diu_set_dvi_encoder(pixval); |
||||
select_i2c_ch_pca9547(I2C_MUX_CH_DEFAULT); |
||||
} else { |
||||
return 0; |
||||
} |
||||
|
||||
printf("DCU: Switching to %s monitor @ %ux%u\n", name, xres, yres); |
||||
|
||||
pixel_format = 32; |
||||
fsl_dcu_init(xres, yres, pixel_format); |
||||
|
||||
return 0; |
||||
} |
Loading…
Reference in new issue