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

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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>;
            };
        };
    };