自己修改了rk3399-firefly-aio-lvds.dts文件，
ubuntu编译流程如下：
./build.sh aio-3399j-lvds-ubuntu.mk
./build.sh
编译信息如下：
TARGET_ARCH=arm64
TARGET_PLATFORM=rk3399
TARGET_UBOOT_CONFIG=firefly-rk3399
TARGET_SPL_CONFIG=
TARGET_KERNEL_CONFIG=firefly_linux_defconfig
TARGET_KERNEL_DTS=rk3399-firefly-aio-lvds
TARGET_TOOLCHAIN_CONFIG=
TARGET_BUILDROOT_CONFIG=
TARGET_RECOVERY_CONFIG=
TARGET_PCBA_CONFIG=rockchip_rk3399_pcba
TARGET_RAMBOOT_CONFIG=
编译出文件 AIO-3399J-LVDS-UBUNTU-18.04-GPT-20220217-1450.img，使用烧写工具烧录之后lvds屏幕有白色竖线，不显示桌面；
buildroot编译流程如下：
./build.sh aio-3399j-lvds-buildroot.mk
./build.sh
编译信息如下：
TARGET_ARCH=arm64
TARGET_PLATFORM=rk3399
TARGET_UBOOT_CONFIG=firefly-rk3399
TARGET_SPL_CONFIG=
TARGET_KERNEL_CONFIG=firefly_linux_defconfig
TARGET_KERNEL_DTS=rk3399-firefly-aio-lvds
TARGET_TOOLCHAIN_CONFIG=
TARGET_BUILDROOT_CONFIG=rockchip_rk3399
TARGET_RECOVERY_CONFIG=rockchip_rk3399_recovery
TARGET_PCBA_CONFIG=rockchip_rk3399_pcba
TARGET_RAMBOOT_CONFIG=
编译出文件 AIO-3399J-LVDS-BUILDROOT-GPT-20220216-1751.img，使用烧写工具烧录之后lvds屏幕可以正常显示；
两种编译方式都是在同一个环境下，也没有更改任何东西；
如果先烧写ubuntu的镜像，然后使用下载镜像功能单独烧写buildroot的boot.img的话系统也可以正常启动，但是屏幕还是不亮，设备树和内核不应该只包含在boot.img中吗？
由于一些原因需要使用ubuntu系统，这种情况如何排查呢，排查了几天毫无头绪，使用dtc工具反编译两个系统的 /sys/firmware/fdt 文件除了memreserve不太一样，其余都是一样的，所以可能是什么问题导致的？
dts内容如下：
/*
* Copyright (c) 2016 Fuzhou Rockchip Electronics Co., Ltd
*
* This file is dual-licensed: you can use it either under the terms
* of the GPL or the X11 license, at your option. Note that this dual
* licensing only applies to this file, and not this project as a
* whole.
*
* a) This file is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of the
* License, or (at your option) any later version.
*
* This file is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* Or, alternatively,
* restriction, including without limitation the rights to use,
* copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following
* conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
* OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*/
/dts-v1/;
#include "rk3399-firefly-port.dtsi"
#include <dt-bindings/sensor-dev.h>
#include <dt-bindings/display/media-bus-format.h>
/ {
model = "AIO-3399J Board LVDS HSX101H40C (Linux Opensource)";
compatible = "rockchip,rk3399-firefly", "rockchip,rk3399";
test-power {
status = "okay";
};
/delete-node/ vcc-sd;
sdmmc_pwrseq: sdmmc-pwrseq {
compatible = "mmc-pwrseq-simple";
clocks = <&rk808 1>;
clock-names = "ext_clock";
pinctrl-names = "default";
pinctrl-0 = <&sdcard_enable_h>;
/*
* On the module itself this is one of these (depending
* on the actual card populated):
* - SDIO_RESET_L_WL_REG_ON
* - PDN (power down when low)
*/
reset-gpios = <&gpio1 20 GPIO_ACTIVE_LOW>; /* GPIO1_C4 */
};
lcd_en:lcd-en-regulator {
compatible = "regulator-fixed";
enable-active-high;
gpio = <&gpio1 4 GPIO_ACTIVE_HIGH>;
pinctrl-names = "default";
pinctrl-0 = <&lcd_panel_lcd_en>;
regulator-name = "lcd_en";
regulator-always-on;
};
leds {
compatible = "gpio-leds";
work {
gpios = <&gpio2 7 GPIO_ACTIVE_HIGH>;
default-state = "on";
};
user {
gpios = <&gpio2 2 GPIO_ACTIVE_HIGH>;
default-state = "off";
};
};
};
&backlight {
status = "okay";
pwms = <&pwm0 0 25000 1>;
enable-gpios = <&gpio1 1 GPIO_ACTIVE_HIGH>;
brightness-levels = </*
0 1 2 3 4 5 6 7
8 9 10 11 12 13 14 15
16 17 18 19 20 21 22 23
24 25 26 27 28 29 30 31
32 33 34 35*/36 37 38 39
40 41 42 43 44 45 46 47
48 49 50 51 52 53 54 55
56 57 58 59 60 61 62 63
64 65 66 67 68 69 70 71
72 73 74 75 76 77 78 79
80 81 82 83 84 85 86 87
88 89 90 91 92 93 94 95
96 97 98 99 100 101 102 103
104 105 106 107 108 109 110 111
112 113 114 115 116 117 118 119
120 121 122 123 124 125 126 127
128 129 130 131 132 133 134 135
136 137 138 139 140 141 142 143
144 145 146 147 148 149 150 151
152 153 154 155 156 157 158 159
160 161 162 163 164 165 166 167
168 169 170 171 172 173 174 175
176 177 178 179 180 181 182 183
184 185 186 187 188 189 190 191
192 193 194 195 196 197 198 199
200 201 202 203 204 205 206 207
208 209 210 211 212 213 214 215
216 217 218 219 220 221 222 223
224 225 226 227 228 229 230 231
232 233 234 235 236 237 238 239
240 241 242 243 244 245 246 247
248 249 250 251 252 253 254 255>;
default-brightness-level = <200>;
};
&dsi {
status = "okay";
rockchip,lane-rate = <780>; //lvds_clock*6*2
dsi_panel: panel {
compatible ="simple-panel-dsi";
reg = <0>;
backlight = <&backlight>;
enable-gpios = <&gpio3 16 GPIO_ACTIVE_HIGH>;
reset-gpios = <&gpio2 27 GPIO_ACTIVE_LOW>;
dsi,flags = <(MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_VIDEO_BURST | MIPI_DSI_MODE_LPM | MIPI_DSI_MODE_EOT_PACKET)>;
dsi,format = <MIPI_DSI_FMT_RGB888>;
bus-format = <MEDIA_BUS_FMT_RGB666_1X18>;
dsi,lanes = <4>;
dsi,channel = <0>;
enable-delay-ms = <35>;
prepare-delay-ms = <6>;
unprepare-delay-ms = <0>;
disable-delay-ms = <20>;
size,width = <120>;
size,height = <170>;
power-supply = <&lcd_en>;
status = "okay";
/*
panel-init-sequence = [
29 02 06 3C 01 06 00 05 00
29 02 06 14 01 04 00 00 00
29 02 06 64 01 07 00 00 00
29 02 06 68 01 07 00 00 00
29 02 06 6C 01 07 00 00 00
29 02 06 70 01 07 00 00 00
29 02 06 34 01 1F 00 00 00
29 02 06 10 02 1F 00 00 00
29 02 06 04 01 01 00 00 00
29 02 06 04 02 01 00 00 00
29 02 06 50 04 20 01 F0 03
29 02 06 54 04 0A 00 46 00
29 02 06 58 04 00 04 2C 01
29 02 06 5C 04 0A 00 00 00
29 02 06 60 04 00 03 1C 00
29 02 06 64 04 01 00 00 00
29 02 06 A0 04 06 80 44 00
29 02 06 A0 04 06 80 04 00
29 02 06 04 05 04 00 00 00
29 02 06 9C 04 41 01 00 00
];
*/
panel-init-sequence = [
29 02 06 3C 01 09 00 07 00
29 02 06 14 01 06 00 00 00
29 02 06 64 01 0B 00 00 00
29 02 06 68 01 0B 00 00 00
29 02 06 6C 01 0B 00 00 00
29 02 06 70 01 0B 00 00 00
29 02 06 34 01 1F 00 00 00
29 02 06 10 02 1F 00 00 00
29 02 06 04 01 01 00 00 00
29 02 06 04 02 01 00 00 00
29 02 06 50 04 30 01 F0 03
29 02 06 54 04 0A 00 46 00 //hsync_len = 0x0A hback_porch =0x32
29 02 06 58 04 00 04 2C 01 //hactive = 0x320 hfront_porch=0x32
29 02 06 5C 04 0A 00 00 00 //vsync_len = 0x12 vback_porch =0x0A
29 02 06 60 04 00 03 1C 00 //vactive = 0x500 vfront_porch=0x0A
29 02 06 64 04 01 00 00 00
29 02 06 A0 04 06 80 44 00
29 02 06 A0 04 06 80 04 00
29 02 06 04 05 04 00 00 00
29 02 06 80 04 00 01 02 03
29 02 06 84 04 04 07 05 08
29 02 06 88 04 09 0A 0E 0F
29 02 06 8C 04 0B 0C 0D 10
29 02 06 90 04 16 17 11 12
29 02 06 94 04 13 14 15 1B
29 02 06 98 04 18 19 1A 06
29 02 06 9C 04 31 04 00 00
];
panel-exit-sequence = [
05 05 01 28
05 78 01 10
];
disp_timings: display-timings {
native-mode = <&timing0>;
timing0: timing0 {
clock-frequency = <65000000>; //@60
hactive = <1024>;
vactive = <768>;
hsync-len = <10>;
hback-porch = <70>;
hfront-porch = <300>;
vsync-len = <10>;
vback-porch = <0>;
vfront-porch = <28>;
hsync-active = <0>;
vsync-active = <0>;
de-active = <0>;
pixelclk-active = <0>;
};
};
};
};
&route_dsi {
status = "okay";
logo,mode = "center";
};
&dsi_in_vopl {
status = "okay";
};
&cdn_dp {
status = "disabled";
};
&hdmi_dp_sound {
status = "okay";
};
&i2c4 {
status = "okay";
gsl3680: gsl3680@41 {
compatible = "gslX680";
reg = <0x41>;
screen_max_x = <800>;
screen_max_y = <1280>;
touch-gpio = <&gpio4 27 IRQ_TYPE_LEVEL_LOW>;
reset-gpio = <&gpio0 12 GPIO_ACTIVE_HIGH>;
gsl,fw = <1>;
flip-x = <1>;
flip-y = <0>;
swap-xy = <0>;
};
sensor@4c {
status = "disabled";
compatible = "gs_mc3230";
reg = <0x4c>;
type = <SENSOR_TYPE_ACCEL>;
irq_enable = <0>;
poll_delay_ms = <30>;
layout = <1>;
};
};
&rt5640 {
aux-det-adc-value = <1000>;
io-channels = <&saradc 4>, <&saradc 2>;
io-channel-names = "hp-det", "aux-det";
};
&sdmmc {
/delete-property/ vmmc-supply;
mmc-pwrseq = <&sdmmc_pwrseq>;
};
&spi1 {
status = "okay";
};
&spi_wk2xxx {
status = "okay";
};
&fusb0 {
status = "disabled";
};
&tcphy0 {
status = "okay";
/delete-property/ extcon;
};
&u2phy0 {
status = "okay";
/delete-property/ extcon;
u2phy0_otg: otg-port {
rockchip,vbus-always-on;
vbus-5v-gpios = <&gpio1 3 GPIO_ACTIVE_HIGH>;
status = "okay";
};
};
&usbdrd3_0 {
status = "okay";
/delete-property/ extcon;
};
&usbdrd_dwc3_0 {
status = "okay";
dr_mode = "host";
};
&vcc3v3_pcie {
gpio = <&gpio0 13 GPIO_ACTIVE_HIGH>;
};
&pcie0 {
ep-gpios = <&gpio4 25 GPIO_ACTIVE_HIGH>;
};
&vcc3v3_3g {
gpio = <&gpio2 6 GPIO_ACTIVE_HIGH>;
};
&uart4 {
status = "disabled";
};
&dp_in_vopb {
status = "disabled";
};
&hdmi_in_vopb {
status = "disabled";
};
&wdt {
status = "disabled";
};
&pinctrl {
leds {
led_power: led-power {
rockchip,pins =
<2 7 RK_FUNC_GPIO &pcfg_pull_none>;
};
led_user: led-user {
rockchip,pins =
<2 2 RK_FUNC_GPIO &pcfg_pull_none>;
};
};
pcie {
pcie_drv: pcie-drv {
rockchip,pins =
<0 13 RK_FUNC_GPIO &pcfg_pull_none>;
};
pcie_3g_drv: pcie-3g-drv {
rockchip,pins =
<2 6 RK_FUNC_GPIO &pcfg_pull_up>;
};
};
sdmmc-pwrseq {
sdcard_enable_h: sdcard-enable-h {
rockchip,pins =
<1 20 RK_FUNC_GPIO &pcfg_pull_none>;
};
};
lcd-panel {
lcd_panel_lcd_en:lcd-panel-lcd-en {
rockchip,pins = <1 4 RK_FUNC_GPIO &pcfg_pull_down>;
};
};
};