Firefly-RK3288 开发板 Android5.1 支持7.85寸液晶屏模组的修改方法
本帖最后由 wico 于 2016-12-1 14:41 编辑一.硬件条件需要对应的硬件支持：
1.Firefly-RK3288 开发板;
2.Firefly-RK3288开发板对应的7.85寸液晶屏模组:
https://img.alicdn.com/imgextra/i3/2144221127/TB2_Ww0npXXXXXNXXXXXXXXXXXX_!!2144221127.png
https://img.alicdn.com/imgextra/i2/2144221127/TB2fckTnpXXXXbqXXXXXXXXXXXX_!!2144221127.png
二.软件配置：
1.首先下载更新RK3288 Android5.1 SDK，最新提交：
commit：3e3038c
Message：Android->framework:fix btn default color
2.软件修改配置：
1）打开kernel/arch/arm/boot/dts/firefly-rk3288.dts，修改如下：
包含lcd的dtsi：
-#include "lcd-box.dtsi"
+#include "lcd-LP079Qx1.dtsi"
关闭vga： vga_ddc@50 {
compatible = "firefly,vga_ddc";
reg = <0x50>;
gpio-pwn = <&gpio0 GPIO_C1 GPIO_ACTIVE_HIGH>;
rockchip,source = <0>; //0: LCDC0; 1: LCDC1
rockchip,prop = <PRMRY>;//<EXTEND>
- status = "okay";
+ status = "disabled";
};
使能tp
mt@40 {
- status = "disabled";
+ status = "okay";
compatible = "firefly,gsl3680";
reg = <0x40>;
touch-gpio = <&gpio5 GPIO_B0 IRQ_TYPE_EDGE_RISING>;
reset-gpio = <&gpio7 GPIO_B1 GPIO_ACTIVE_LOW>;
max-y = <2048>;
max-x = <1536>;
flip-x = <1>;
flip-y = <1>;
swap-xy = <0>;
};
使能mpu6050
mpu6050:mpu@68{
- status = "disabled";
+ status = "okay";
compatible = "mpu6050";
reg = <0x68>;
mpu-int_config = <0x10>;
修改timing配置和添加屏使能脚：
&disp_timings {
- native-mode = <&timing1>;
+ native-mode = <&timing0>;
};
&rk_screen {
@@ -611,6 +611,29 @@
status = "okay";
rockchip,iommu-enabled = <1>;
rockchip,prop = <PRMRY>;
+ power_ctr: power_ctr {
+ rockchip,debug = <1>;
+
+ lcd_en:lcd_en {
+ rockchip,power_type = <GPIO>;
+ gpios = <&gpio0 GPIO_B5 GPIO_ACTIVE_HIGH>;
+ rockchip,delay = <10>;
+ };
+
+ /*
+ lcd_cs:lcd_cs {
+ rockchip,power_type = <GPIO>;
+ gpios = <&gpio7 GPIO_A4 GPIO_ACTIVE_HIGH>;
+ rockchip,delay = <10>;
+ };
+ lcd_rst:lcd_rst {
+ rockchip,power_type = <GPIO>;
+ gpios = <&gpio5 GPIO_C1 GPIO_ACTIVE_LOW>;
+ rockchip,delay = <0>;
+ };
+ */
+};
+
};
使能背光pwm：
&pwm1 {
- status = "disabled";
+ status = "okay";
};
2）打开kernel/arch/arm/boot/dts/rk3288.dtsi，修改如下：
关闭CTR_GTCLKS：
rockchip,ctrbits = <
(0
|RKPM_CTR_PWR_DMNS
- |RKPM_CTR_GTCLKS
+ // |RKPM_CTR_GTCLKS
3）打开kernel/arch/arm/configs/firefly-rk3288_defconfig，修改如下：
修改触摸defconfig配置：
-CONFIG_TOUCHSCREEN_GSLX680=y
+CONFIG_TOUCHSCREEN_GSLX680_MT70817V2=y
4）打开device/rockchip/rk3288/rk3288_box/system.prop，修改如下： （此修改需要重新编译上层）
修改图标大小
-ro.sf.lcd_density=160
+ro.sf.lcd_density=320
5）打开frameworks/base/packages/SettingsProvider/src/com/android/providers/settings/DatabaseHelper.java，修改如下：（此修改需要重新编译上层）
添加屏幕旋转，此修改可以根据自己需求添加
loadSetting(stmt, Settings.System.HIDE_ROTATION_LOCK_TOGGLE_FOR_ACCESSIBILITY,
- "1");
+ "0");
三.编译烧写：
1）编译烧写内核：
tvbox-51/kernel$ make firefly-rk3288_defconfig
tvbox-51/kernel$ make firefly-rk3288.img -j4烧写kernel.img和resouce.img
2)编译烧写Android：
tvbox-51$ . build.sh
tvbox-51$ make installclean
tvbox-51$ make -j8烧写system.img和misc.img
对应的补丁和固件wiki地址：
http://wiki.t-firefly.com/index. ... F.E6.A8.A1.E7.BB.84
附：如使用自己编译的u-boot，请make rk3288_config 再make
顶 顶 原来的firefly-rk3288.dts中关于rk_screen的代码如下：
&rk_screen {
display-timings = <&disp_timings>;
};
跟上面贴出来的不一致，请问要怎么样修改？
lzh 发表于 2016-5-16 23:19
原来的firefly-rk3288.dts中关于rk_screen的代码如下：
&rk_screen {
display-timings = ;
原来理解错了。应该是这样修改。
&lcdc0 {
status = "okay";
rockchip,iommu-enabled = <1>;
rockchip,prop = <PRMRY>;
power_ctr: power_ctr {
rockchip,debug = <1>;
lcd_en:lcd_en {
rockchip,power_type = <GPIO>;
gpios = <&gpio0 GPIO_B5 GPIO_ACTIVE_HIGH>;
rockchip,delay = <10>;
};
/*
lcd_cs:lcd_cs {
rockchip,power_type = <GPIO>;
gpios = <&gpio7 GPIO_A4 GPIO_ACTIVE_HIGH>;
rockchip,delay = <10>;
};
lcd_rst:lcd_rst {
rockchip,power_type = <GPIO>;
gpios = <&gpio5 GPIO_C1 GPIO_ACTIVE_LOW>;
rockchip,delay = <0>;
};
*/
};
};
you write wrongupstair is right 求问 Ubuntu 16.04 环境下怎么配置这块儿屏幕啊 楼主 我按照官方patch里的配置手动修改我的Reload版，开机的时候反复重启，请问这是什么问题呢？我已经通过git pull把sdk更新到最新了 赞 有用
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