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20250118拿掉荣品pro-rk3566开发板上Android13下在uboot和kernel启动阶段的Rockchip这个LOGO标识
 2025/1/18 15:12
 缘起:做飞凌OK3588-C开发板/核心板【Linux R4】的时候,测试/生产要求没有开机LOGO【飞凌/Rockchip】
 要求:黑屏或者中性界面。
 这次决定也这样干。结果Vysor可以进Android的UI界面,LCD屏进不了。
 于是将Rockchip给的BMP文件在WIN10自带的画图中给直接涂黑了!
 【可能的原因:荣品不让拿掉LOGO文件 或者是 Android13系统要求的】使用ACD See 5.0很容易知道logo.bmp和logo_kernel.bmp都是256色的BMP文件。【654x270x256色】
 如果使用WIN10自带的画图工具编辑之后保存成为24bit的BMP文件也是可以正常使用的。




 https://doc.rpdzkj.cn/#/zh_cn/%E7%91%9E%E8%8A%AF%E5%BE%AE%E7%B3%BB%E5%88%97/%E7%91%9E%E8%8A%AF%E5%BE%AE%E9%80%9A%E7%94%A8%E6%96%87%E6%A1%A3/%E5%BC%80%E6%9C%BALogo%E4%B8%8E%E5%8A%A8%E7%94%BB
 我们这边是建议修改中性的或者黑屏logo 
 板子首先跑 uboot 接着跑kernel 再跑到系统,最后加载对应的应用,这个开机log 是在板子跑进系统前展示的画面,去不去掉并不影响开机时间,建议不要改显示的部分.直接去掉反而会对稳定性有影响
 Xshell 8 (Build 0065)
 Copyright (c) 2024 NetSarang Computer, Inc. All rights reserved.
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 [C:\~]$ 
Connecting to 192.168.3.250:22...
 Connection established.
 To escape to local shell, press 'Ctrl+Alt+]'.
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 Last login: Sat Jan 18 11:03:55 2025 from 192.168.3.199
 rootroot@rootroot-X99-Turbo:~$ cd Android13.0/
 rootroot@rootroot-X99-Turbo:~/Android13.0$ ll
 total 1160488
 drwxrwxrwx  37 rootroot rootroot       4096 12月 10 16:32 ./
 drwxr-xr-x  32 rootroot rootroot       4096 1月  18 14:47 ../
 lrwxrwxrwx   1 rootroot rootroot         19 12月 10 10:06 Android.bp -> build/soong/root.bp
 drwxrwxr-x  37 rootroot rootroot       4096 12月 10 10:06 art/
 drwxrwxr-x  14 rootroot rootroot       4096 12月 10 10:06 bionic/
 drwxrwxr-x   4 rootroot rootroot       4096 12月 10 10:06 bootable/
 lrwxrwxrwx   1 rootroot rootroot         26 12月 10 10:06 bootstrap.bash -> build/soong/bootstrap.bash*
 drwxrwxr-x   8 rootroot rootroot       4096 12月 10 10:06 build/
 lrwxrwxrwx   1 rootroot rootroot         23 12月 10 10:06 BUILD -> build/bazel/bazel.BUILD
 -rwxrwxr-x   1 rootroot rootroot      27397 12月 10 10:06 build.sh*
 -rwxrwxr-x   1 rootroot rootroot      14109 12月 10 10:06 .classpath*
 drwxrwxr-x  13 rootroot rootroot       4096 12月 10 10:06 cts/
 drwxrwxr-x   7 rootroot rootroot       4096 12月 10 10:06 dalvik/
 drwxrwxr-x   5 rootroot rootroot       4096 12月 10 10:06 developers/
 drwxrwxr-x  20 rootroot rootroot       4096 12月 10 10:06 development/
 drwxrwxr-x  11 rootroot rootroot       4096 12月 10 10:06 device/
 drwxrwxr-x 385 rootroot rootroot      12288 1月  16 09:42 external/
 drwxrwxr-x  16 rootroot rootroot       4096 12月 10 10:07 frameworks/
 drwxrwxr-x   8 rootroot rootroot       4096 12月 10 10:12 .git/
 -rw-rw-r--   1 rootroot rootroot         14 12月 10 10:06 .gitignore
 drwxrwxr-x  19 rootroot rootroot       4096 12月 10 10:07 hardware/
 -rw-rw-r--   1 rootroot rootroot        162 12月 10 10:07 javaenv.sh
 drwxrwxr-x   5 rootroot rootroot       4096 12月 10 10:07 kernel/
 drwxrwxr-x  26 rootroot rootroot       4096 1月  14 18:07 kernel-5.10/
 -rw-rw-r--   1 rootroot rootroot 1128659893 12月 10 13:49 kernel-5.10b.tgz
 drwxrwxr-x  19 rootroot rootroot       4096 12月 10 10:07 libcore/
 drwxrwxr-x   9 rootroot rootroot       4096 12月 10 10:07 libnativehelper/
 drwxrwxr-x  10 rootroot rootroot       4096 12月 10 10:07 mkcombinedroot/
 -rwxrwxr-x   1 rootroot rootroot      10437 12月 10 10:07 mkimage_ab.sh*
 -rwxrwxr-x   1 rootroot rootroot       8581 12月 10 10:07 mkimage.sh*
 drwxrwxr-x  13 rootroot rootroot       4096 1月  18 11:07 out/
 drwxrwxr-x   9 rootroot rootroot       4096 12月 10 10:08 packages/
 drwxrwxr-x   5 rootroot rootroot       4096 12月 10 10:08 pdk/
 drwxrwxr-x  10 rootroot rootroot       4096 12月 10 10:08 platform_testing/
 drwxrwxr-x  32 rootroot rootroot       4096 12月 10 10:12 prebuilts/
 -rwxrwxr-x   1 rootroot rootroot        519 12月 10 10:12 restore_patches.sh*
 -rwxrwxr-x   1 rootroot rootroot      11096 12月 10 16:28 rk3566_android_serial*
 -rwxrwxr-x   1 rootroot rootroot      11096 12月 10 13:59 rk3566_android_serial1*
 -rwxrwxr-x   1 rootroot rootroot      11096 12月 10 14:09 rk3566_android_serial2*
 -rwxrwxr-x   1 rootroot rootroot      11096 12月 10 15:31 rk3566_android_serial3*
 drwxrwxr-x   9 rootroot rootroot       4096 1月  14 18:03 rkbin/
 drwxrwxr-x   4 rootroot rootroot       4096 12月 10 10:06 RKDocs/
 drwxrwxr-x   4 rootroot rootroot       4096 12月 10 10:12 rkst/
 drwxrwxr-x   5 rootroot rootroot       4096 12月 10 10:06 RKTools/
 drwxrwxr-x  13 rootroot rootroot       4096 1月  14 18:14 rockdev/
 drwxrwxr-x  20 rootroot rootroot       4096 12月 10 10:12 sdk/
 drwxrwxr-x  45 rootroot rootroot       4096 12月 10 10:12 system/
 drwxrwxr-x  10 rootroot rootroot       4096 12月 10 10:12 test/
 drwxrwxr-x   4 rootroot rootroot       4096 12月 10 10:12 toolchain/
 drwxrwxr-x  23 rootroot rootroot       4096 12月 10 10:12 tools/
 drwxrwxr-x  27 rootroot rootroot       4096 1月  14 18:08 u-boot/
 -rw-rw-r--   1 rootroot rootroot   59383681 12月 10 13:48 u-boot1.tgz
 drwxrwxr-x   4 rootroot rootroot       4096 12月 10 10:12 vendor/
 lrwxrwxrwx   1 rootroot rootroot         27 12月 10 10:06 WORKSPACE -> build/bazel/bazel.WORKSPACE
 rootroot@rootroot-X99-Turbo:~/Android13.0$ 
 rootroot@rootroot-X99-Turbo:~/Android13.0$ 
 rootroot@rootroot-X99-Turbo:~/Android13.0$ cd kernel-5.10/arch/arm64/boot/dts/
 rootroot@rootroot-X99-Turbo:~/Android13.0/kernel-5.10/arch/arm64/boot/dts$ ll
 total 532
 drwxrwxr-x 34 rootroot rootroot   4096 1月  14 09:42 ./
 drwxrwxr-x  3 rootroot rootroot   4096 1月  14 18:07 ../
 drwxrwxr-x  2 rootroot rootroot   4096 12月 10 10:07 actions/
 drwxrwxr-x  2 rootroot rootroot   4096 12月 10 10:07 allwinner/
 drwxrwxr-x  2 rootroot rootroot   4096 12月 10 10:07 altera/
 drwxrwxr-x  2 rootroot rootroot   4096 12月 10 10:07 amazon/
 drwxrwxr-x  2 rootroot rootroot   4096 12月 10 10:07 amd/
 drwxrwxr-x  2 rootroot rootroot   4096 12月 10 10:07 amlogic/
 drwxrwxr-x  2 rootroot rootroot   4096 12月 10 10:07 apm/
 drwxrwxr-x  2 rootroot rootroot   4096 12月 10 10:07 arm/
 drwxrwxr-x  2 rootroot rootroot   4096 12月 10 10:07 bitmain/
 drwxrwxr-x  4 rootroot rootroot   4096 12月 10 10:07 broadcom/
 drwxrwxr-x  2 rootroot rootroot   4096 12月 10 10:07 cavium/
 drwxrwxr-x  2 rootroot rootroot   4096 12月 10 10:07 exynos/
 drwxrwxr-x  2 rootroot rootroot   4096 12月 10 10:07 freescale/
 drwxrwxr-x  2 rootroot rootroot   4096 12月 10 10:07 hisilicon/
 drwxrwxr-x  2 rootroot rootroot   4096 12月 10 10:07 intel/
 drwxrwxr-x  2 rootroot rootroot   4096 12月 10 10:07 lg/
 -rw-rw-r--  1 rootroot rootroot    630 12月 10 10:07 Makefile
 drwxrwxr-x  2 rootroot rootroot   4096 12月 10 10:07 marvell/
 drwxrwxr-x  2 rootroot rootroot   4096 12月 10 10:07 mediatek/
 drwxrwxr-x  2 rootroot rootroot   4096 12月 10 10:07 microchip/
 drwxrwxr-x  2 rootroot rootroot   4096 12月 10 10:07 nvidia/
 drwxrwxr-x  2 rootroot rootroot   4096 12月 10 10:07 qcom/
 drwxrwxr-x  2 rootroot rootroot   4096 12月 10 10:07 realtek/
 drwxrwxr-x  2 rootroot rootroot   4096 12月 10 10:07 renesas/
 drwxrwxr-x  3 rootroot rootroot   4096 12月  3 17:38 rockchip/
 drwxrwxr-x  8 rootroot rootroot  32768 12月 10 10:07 rockchip00/
 -rwx------  1 rootroot rootroot 110928 12月  3 17:51 rockchip14zuixiao_rongpin3566.tar.gz*
 -rw-rw-r--  1 rootroot rootroot 125211 12月 14 17:13 rockchip15.tar.gz
 -rw-rw-r--  1 rootroot rootroot 127495 1月  14 09:42 rockchip16.tar.gz
 drwxrwxr-x  2 rootroot rootroot   4096 12月 10 10:07 socionext/
 drwxrwxr-x  2 rootroot rootroot   4096 12月 10 10:07 sprd/
 drwxrwxr-x  2 rootroot rootroot   4096 12月 10 10:07 synaptics/
 drwxrwxr-x  2 rootroot rootroot   4096 12月 10 10:07 ti/
 drwxrwxr-x  2 rootroot rootroot   4096 12月 10 10:07 toshiba/
 drwxrwxr-x  2 rootroot rootroot   4096 12月 10 10:07 xilinx/
 drwxrwxr-x  2 rootroot rootroot   4096 12月 10 10:07 zte/
 rootroot@rootroot-X99-Turbo:~/Android13.0/kernel-5.10/arch/arm64/boot/dts$ 
 rootroot@rootroot-X99-Turbo:~/Android13.0/kernel-5.10/arch/arm64/boot/dts$ 
 rootroot@rootroot-X99-Turbo:~/Android13.0/kernel-5.10/arch/arm64/boot/dts$ cd rockchip
 rootroot@rootroot-X99-Turbo:~/Android13.0/kernel-5.10/arch/arm64/boot/dts/rockchip$ ll
 total 228
 drwxrwxr-x  3 rootroot rootroot   4096 12月  3 17:38 ./
 drwxrwxr-x 34 rootroot rootroot   4096 1月  14 09:42 ../
 -rwx------  1 rootroot rootroot  12808 12月  2 18:43 Makefile*
 -rwx------  1 rootroot rootroot   1205 12月  2 18:43 rk3566.dtsi*
 -rwx------  1 rootroot rootroot   1902 12月  2 18:43 rk3568-android.dtsi*
 -rwx------  1 rootroot rootroot  11079 12月  2 18:43 rk3568-dram-default-timing.dtsi*
 -rwx------  1 rootroot rootroot 105152 12月  2 18:43 rk3568.dtsi*
 -rwx------  1 rootroot rootroot  62429 12月  2 18:43 rk3568-pinctrl.dtsi*
 drwxrwxr-x  2 rootroot rootroot   4096 1月  14 18:03 rk356x/
 -rwx------  1 rootroot rootroot   8206 12月  2 18:43 rockchip-pinconf.dtsi*
 rootroot@rootroot-X99-Turbo:~/Android13.0/kernel-5.10/arch/arm64/boot/dts/rockchip$ 
 rootroot@rootroot-X99-Turbo:~/Android13.0/kernel-5.10/arch/arm64/boot/dts/rockchip$ 
 rootroot@rootroot-X99-Turbo:~/Android13.0/kernel-5.10/arch/arm64/boot/dts/rockchip$ grep bmp . -R
 ./rk356x/.pro-rk3566.dtb.dts.tmp:    logo,uboot = "logo.bmp";
 ./rk356x/.pro-rk3566.dtb.dts.tmp:    logo,kernel = "logo_kernel.bmp";
 ./rk356x/.pro-rk3566.dtb.dts.tmp:    logo,uboot = "logo.bmp";
 ./rk356x/.pro-rk3566.dtb.dts.tmp:    logo,kernel = "logo_kernel.bmp";
 ./rk356x/.pro-rk3566.dtb.dts.tmp:    logo,uboot = "logo.bmp";
 ./rk356x/.pro-rk3566.dtb.dts.tmp:    logo,kernel = "logo_kernel.bmp";
 ./rk356x/.pro-rk3566.dtb.dts.tmp:    logo,uboot = "logo.bmp";
 ./rk356x/.pro-rk3566.dtb.dts.tmp:    logo,kernel = "logo_kernel.bmp";
 ./rk356x/.pro-rk3566.dtb.dts.tmp:    logo,uboot = "logo.bmp";
 ./rk356x/.pro-rk3566.dtb.dts.tmp:    logo,kernel = "logo_kernel.bmp";
 ./rk356x/.pro-rk3566.dtb.dts.tmp:    logo,uboot = "logo.bmp";
 ./rk356x/.pro-rk3566.dtb.dts.tmp:    logo,kernel = "logo_kernel.bmp";
 Binary file ./rk356x/pro-rk3566.dtb matches
./rk3568.dtsi:                logo,uboot = "logo.bmp";
 ./rk3568.dtsi:                logo,kernel = "logo_kernel.bmp";
 ./rk3568.dtsi:                logo,uboot = "logo.bmp";
 ./rk3568.dtsi:                logo,kernel = "logo_kernel.bmp";
 ./rk3568.dtsi:                logo,uboot = "logo.bmp";
 ./rk3568.dtsi:                logo,kernel = "logo_kernel.bmp";
 ./rk3568.dtsi:                logo,uboot = "logo.bmp";
 ./rk3568.dtsi:                logo,kernel = "logo_kernel.bmp";
 ./rk3568.dtsi:                logo,uboot = "logo.bmp";
 ./rk3568.dtsi:                logo,kernel = "logo_kernel.bmp";
 ./rk3568.dtsi:                logo,uboot = "logo.bmp";
 ./rk3568.dtsi:                logo,kernel = "logo_kernel.bmp";
 rootroot@rootroot-X99-Turbo:~/Android13.0/kernel-5.10/arch/arm64/boot/dts/rockchip$ 
Z:\Android13.0\kernel-5.10\arch\arm64\boot\dts\rockchip\rk3568.dtsi
 Z:\Android13.0\kernel-5.10\arch\arm64\boot\dts\rockchip\rk3568 - 副本.dtsi
     display_subsystem: display-subsystem {
         compatible = "rockchip,display-subsystem";
         memory-region = <&drm_logo>, <&drm_cubic_lut>;
         memory-region-names = "drm-logo", "drm-cubic-lut";
         ports = <&vop_out>;
         devfreq = <&dmc>;
        route {
             route_dsi0: route-dsi0 {
                 status = "disabled";
                logo,uboot = "logo.bmp";
                 logo,kernel = "logo_kernel.bmp";
                 logo,mode = "center";
                 charge_logo,mode = "center";
                 connect = <&vp0_out_dsi0>;
             };
             route_dsi1: route-dsi1 {
                 status = "disabled";
                 logo,uboot = "logo.bmp";
                 logo,kernel = "logo_kernel.bmp";
                 logo,mode = "center";
                 charge_logo,mode = "center";
                 connect = <&vp0_out_dsi1>;
             };
             route_edp: route-edp {
                 status = "disabled";
                 logo,uboot = "logo.bmp";
                 logo,kernel = "logo_kernel.bmp";
                 logo,mode = "center";
                 charge_logo,mode = "center";
                 connect = <&vp0_out_edp>;
             };
             route_hdmi: route-hdmi {
                 status = "disabled";
                 logo,uboot = "logo.bmp";
                 logo,kernel = "logo_kernel.bmp";
                 logo,mode = "center";
                 charge_logo,mode = "center";
                 connect = <&vp1_out_hdmi>;
             };
             route_lvds: route-lvds {
                 status = "disabled";
                 logo,uboot = "logo.bmp";
                 logo,kernel = "logo_kernel.bmp";
                 logo,mode = "center";
                 charge_logo,mode = "center";
                 connect = <&vp1_out_lvds>;
             };
             route_rgb: route-rgb {
                 status = "disabled";
                 logo,uboot = "logo.bmp";
                 logo,kernel = "logo_kernel.bmp";
                 logo,mode = "center";
                 charge_logo,mode = "center";
                 connect = <&vp2_out_rgb>;
             };
         };
     };
修改成为:
    display_subsystem: display-subsystem {
         compatible = "rockchip,display-subsystem";
         memory-region = <&drm_logo>, <&drm_cubic_lut>;
         memory-region-names = "drm-logo", "drm-cubic-lut";
         ports = <&vop_out>;
         devfreq = <&dmc>;
        route {
             route_dsi0: route-dsi0 {
                 status = "disabled";
                 logo,uboot = "";
                 logo,kernel = "";
                 logo,mode = "center";
                 charge_logo,mode = "center";
                 connect = <&vp0_out_dsi0>;
             };
             route_dsi1: route-dsi1 {
                 status = "disabled";
                 logo,uboot = "";
                 logo,kernel = "";
                 logo,mode = "center";
                 charge_logo,mode = "center";
                 connect = <&vp0_out_dsi1>;
             };
             route_edp: route-edp {
                 status = "disabled";
                 logo,uboot = "";
                 logo,kernel = "";
                 logo,mode = "center";
                 charge_logo,mode = "center";
                 connect = <&vp0_out_edp>;
             };
             route_hdmi: route-hdmi {
                 status = "disabled";
                 logo,uboot = "";
                 logo,kernel = "";
                 logo,mode = "center";
                 charge_logo,mode = "center";
                 connect = <&vp1_out_hdmi>;
             };
             route_lvds: route-lvds {
                 status = "disabled";
                 logo,uboot = "";
                 logo,kernel = "";
                 logo,mode = "center";
                 charge_logo,mode = "center";
                 connect = <&vp1_out_lvds>;
             };
             route_rgb: route-rgb {
                 status = "disabled";
                 logo,uboot = "";
                 logo,kernel = "";
                 logo,mode = "center";
                 charge_logo,mode = "center";
                 connect = <&vp2_out_rgb>;
             };
         };
     };



