100ASK_T113-PRO开发板适配4寸MIPI屏 0.前言
本章主要介绍如何在Tina SDK中适配4寸MIPI屏，购买链接为：https://item.taobao.com/item.htm?spm=a1z10.5-c-s.w4002-18944745104.11.135378a09F4YT3&id=706091265930
这里给大家提供一个资源包：source.zip （包含uboot屏驱动、kernel屏驱动、设备树）
1.设备树配置 1.1 修改内核设备树修改内核设备树树，路径为：
tina-d1-h/device/config/chips/t113/configs/100ask/board.dts修改lcd0节点
&lcd0 { lcd_used = <1>; lcd_driver_name = "ili9806e"; lcd_backlight = <100>; lcd_if = <4>; lcd_x = <480>; lcd_y = <800>; lcd_width = <52>; lcd_height = <52>; lcd_dclk_freq = <25>; lcd_pwm_used = <1>; lcd_pwm_ch = <7>; lcd_pwm_freq = <1000>; lcd_pwm_pol = <1>; lcd_pwm_max_limit = <255>; lcd_hbp = <10>; lcd_ht = <515>; lcd_hspw = <5>; lcd_vbp = <20>; lcd_vt = <830>; lcd_vspw = <5>; lcd_dsi_if = <0>; lcd_dsi_lane = <2>; lcd_dsi_format = <0>; lcd_dsi_te = <0>; lcd_dsi_eotp = <0>; lcd_lvds_if = <0>; lcd_lvds_colordepth = <0>; lcd_lvds_mode = <0>; lcd_frm = <0>; lcd_hv_clk_phase = <0>; lcd_hv_sync_polarity= <0>; lcd_io_phase = <0x0000>; lcd_dsi_te = <0>; lcd_gamma_en = <0>; lcd_bright_curve_en = <0>; lcd_cmap_en = <0>; lcd_fsync_en = <0>; lcd_fsync_act_time = <1000>; lcd_fsync_dis_time = <1000>; lcd_fsync_pol = <0>; deu_mode = <0>; lcdgamma4iep = <22>; smart_color = <90>; lcd_gpio_0 = <&pio PG 13 GPIO_ACTIVE_HIGH>; pinctrl-0 = <&dsi4lane_pins_a>; pinctrl-1 = <&dsi4lane_pins_b>; }; 1.2 修改uboot设备树 &lcd0 { lcd_used = <1>; lcd_driver_name = "ili9806e"; lcd_backlight = <100>; lcd_if = <4>; lcd_x = <480>; lcd_y = <800>; lcd_width = <52>; lcd_height = <52>; lcd_dclk_freq = <25>; lcd_pwm_used = <1>; lcd_pwm_ch = <7>; lcd_pwm_freq = <1000>; lcd_pwm_pol = <0>; lcd_pwm_max_limit = <255>; lcd_hbp = <10>; lcd_ht = <515>; lcd_hspw = <5>; lcd_vbp = <20>; lcd_vt = <830>; lcd_vspw = <5>; lcd_dsi_if = <0>; lcd_dsi_lane = <2>; lcd_lvds_if = <0>; lcd_lvds_colordepth = <0>; lcd_lvds_mode = <0>; lcd_frm = <0>; lcd_hv_clk_phase = <0>; lcd_hv_sync_polarity= <0>; lcd_io_phase = <0x0000>; lcd_dsi_te = <0>; lcd_gamma_en = <0>; lcd_bright_curve_en = <0>; lcd_cmap_en = <0>; lcd_fsync_en = <0>; lcd_fsync_act_time = <1000>; lcd_fsync_dis_time = <1000>; lcd_fsync_pol = <0>; deu_mode = <0>; lcdgamma4iep = <22>; smart_color = <90>; lcd_gpio_0 = <&pio PG 13 GPIO_ACTIVE_HIGH>; pinctrl-0 = <&dsi4lane_pins_a>; pinctrl-1 = <&dsi4lane_pins_b>; }; 2.修改配置文件 2.1 修改内核配置文件进入内核目录，在Tina根目录下输入cd lichee/linux-5.4/
book@100ask:~/DongshanNezhaSTU-TinaV2.0-SDK/tina-d1-h$ cd lichee/linux-5.4/在内核目录中直接修改.config文件，输入vi .config
book@100ask:~/DongshanNezhaSTU-TinaV2.0-SDK/tina-d1-h/lichee/linux-5.4$ vi .config修改该节点为
CONFIG_LCD_SUPPORT_TFT08006=y 2.2 修改uboot配置文件进入uboot目录下，输入cd lichee/brandy-2.0/u-boot-2018/
book@100ask:~/DongshanNezhaSTU-TinaV2.0-SDK/tina-d1-h$ cd lichee/brandy-2.0/u-boot-2018/修改该目录下的配置文件.config
book@100ask:~/DongshanNezhaSTU-TinaV2.0-SDK/tina-d1-h/lichee/brandy-2.0/u-boot-2018$ vi .config使能DISP2和选择TFT08006屏驱动
CONFIG_DISP2_SUNXI=y CONFIG_LCD_SUPPORT_TFT08006=y 3.增加屏驱动uboot屏驱动和kernel屏驱动位于在前言中提供的资源包，可通过下载获取。
uboot屏驱动应该放在
tina-d1-h/lichee/brandy-2.0/u-boot-2018/drivers/video/sunxi/disp2/disp/lcdkernel屏驱动应放在
tina-d1-h/lichee/linux-5.4/drivers/video/fbdev/sunxi/disp2/disp/lcd 3.增加LVGL测试测试程序在Tina根目录下，输入
book@100ask:~/DongshanNezhaSTU-TinaV2.0-SDK/tina-d1-h$ make menuconfig进入Tina配置界面后，进入如下目录
> Gui > Littlevgl <*> lv_examples................................. lvgl examples use lvgl-8.0.1输入Y选中lv_examples，如下图所示：
image-202305051104018061095×740 16.7 KB
保存退出并重新编译系统和打包
4.测试屏幕 上电前连接MIPI屏，将生成的新镜像烧写到T113开发板中，烧写后启动开发板，在串口终端输入
root@TinaLinux:/# lv_examples 0 wh=480x800, vwh=480x1600, bpp=32, rotated=0 FAQT113使能屏驱一定要使能uboot下的屏驱动，因为T113需要在uboot下对屏进行初始化
