@willok 发表一个回复就是LV2了
awwwwa 发布的最佳帖子
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R128-S2 驱动 1024x600 RGB 显示屏 并运行 LVGL
由于屏幕较大首先精简系统内存,关闭DSP核心,并将 RV 核心移到 HSPSRAM 上提高带宽。配置 LV_COLOR_DEPTH 16 提高帧率降低内存占用
patch 如下,增加了新方案r128-devkit-rgb:161ca91b-f759-4108-8bfc-85114394da0c-r128-devkit-rgb.tar.gz
编译打包即可
700ms启动 LVGL:
awwwwa 发布的最新帖子
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回复: T527 使用 DRM 驱动 edp 屏幕
DSI
dsi1_backlight: backlight0 { compatible = "pwm-backlight"; status = "okay"; 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>; enable-gpios = <&pio PH 18 GPIO_ACTIVE_HIGH>; pwms = <&pwm0 0 50000 0>; }; &de { chn_cfg_mode = <3>; status = "okay"; }; &vo0 { status = "okay"; }; &dlcd1 { status = "okay"; }; &dsi1 { status = "okay"; pinctrl-0 = <&dsi1_4lane_pins_a>; pinctrl-1 = <&dsi1_4lane_pins_b>; pinctrl-names = "active","sleep"; ports { dsi1_out: port@1{ reg = <1>; dsi_out_panel: endpoint { remote-endpoint = <&panel_in>; }; }; }; panel: panel@0 { compatible = "panel-dsi"; status = "okay"; reg = <0>; power0-supply = <®_cldo4>; power1-supply = <®_cldo1>; reset-gpios = <&pio PD 22 GPIO_ACTIVE_HIGH>; //reset backlight = <&dsi1_backlight>; dsi,flags = <MIPI_DSI_MODE_VIDEO>; dsi,lanes = <4>; dsi,format = <0>; panel-init-sequence = [ 15 00 02 E0 00 15 00 02 E1 93 15 00 02 E2 65 15 00 02 E3 F8 15 00 02 80 03 15 00 02 E0 01 15 00 02 00 00 15 00 02 01 25 15 00 02 03 00 15 00 02 04 30 15 00 02 0C 74 15 00 02 17 00 15 00 02 18 C7 15 00 02 19 01 15 00 02 1A 00 15 00 02 1B C7 15 00 02 1C 01 15 00 02 24 FE 15 00 02 37 19 15 00 02 35 28 15 00 02 38 05 15 00 02 39 08 15 00 02 3A 12 15 00 02 3C 7E 15 00 02 3D FF 15 00 02 3E FF 15 00 02 3F 7F 15 00 02 40 06 15 00 02 41 A0 15 00 02 43 1E 15 00 02 44 0B 15 00 02 55 02 15 00 02 57 6A 15 00 02 59 0A 15 00 02 5A 2E 15 00 02 5B 1A 15 00 02 5C 15 15 00 02 5D 7F 15 00 02 5E 61 15 00 02 5F 50 15 00 02 60 43 15 00 02 61 3F 15 00 02 62 32 15 00 02 63 35 15 00 02 64 1F 15 00 02 65 38 15 00 02 66 36 15 00 02 67 36 15 00 02 68 54 15 00 02 69 42 15 00 02 6A 48 15 00 02 6B 39 15 00 02 6C 34 15 00 02 6D 26 15 00 02 6E 14 15 00 02 6F 02 15 00 02 70 7F 15 00 02 71 61 15 00 02 72 50 15 00 02 73 43 15 00 02 74 3F 15 00 02 75 32 15 00 02 76 35 15 00 02 77 1F 15 00 02 78 38 15 00 02 79 36 15 00 02 7A 36 15 00 02 7B 54 15 00 02 7C 42 15 00 02 7D 48 15 00 02 7E 39 15 00 02 7F 34 15 00 02 80 26 15 00 02 81 14 15 00 02 82 02 15 00 02 E0 02 15 00 02 00 52 15 00 02 01 5F 15 00 02 02 5F 15 00 02 03 50 15 00 02 04 77 15 00 02 05 57 15 00 02 06 5F 15 00 02 07 4E 15 00 02 08 4C 15 00 02 09 5F 15 00 02 0A 4A 15 00 02 0B 48 15 00 02 0C 5F 15 00 02 0D 46 15 00 02 0E 44 15 00 02 0F 40 15 00 02 10 5F 15 00 02 11 5F 15 00 02 12 5F 15 00 02 13 5F 15 00 02 14 5F 15 00 02 15 5F 15 00 02 16 53 15 00 02 17 5F 15 00 02 18 5F 15 00 02 19 51 15 00 02 1A 77 15 00 02 1B 57 15 00 02 1C 5F 15 00 02 1D 4F 15 00 02 1E 4D 15 00 02 1F 5F 15 00 02 20 4B 15 00 02 21 49 15 00 02 22 5F 15 00 02 23 47 15 00 02 24 45 15 00 02 25 41 15 00 02 26 5F 15 00 02 27 5F 15 00 02 28 5F 15 00 02 29 5F 15 00 02 2A 5F 15 00 02 2B 5F 15 00 02 2C 13 15 00 02 2D 1F 15 00 02 2E 1F 15 00 02 2F 01 15 00 02 30 17 15 00 02 31 17 15 00 02 32 1F 15 00 02 33 0D 15 00 02 34 0F 15 00 02 35 1F 15 00 02 36 05 15 00 02 37 07 15 00 02 38 1F 15 00 02 39 09 15 00 02 3A 0B 15 00 02 3B 11 15 00 02 3C 1F 15 00 02 3D 1F 15 00 02 3E 1F 15 00 02 3F 1F 15 00 02 40 1F 15 00 02 41 1F 15 00 02 42 12 15 00 02 43 1F 15 00 02 44 1F 15 00 02 45 00 15 00 02 46 17 15 00 02 47 17 15 00 02 48 1F 15 00 02 49 0C 15 00 02 4A 0E 15 00 02 4B 1F 15 00 02 4C 04 15 00 02 4D 06 15 00 02 4E 1F 15 00 02 4F 08 15 00 02 50 0A 15 00 02 51 10 15 00 02 52 1F 15 00 02 53 1F 15 00 02 54 1F 15 00 02 55 1F 15 00 02 56 1F 15 00 02 57 1F 15 00 02 58 40 15 00 02 5B 10 15 00 02 5C 06 15 00 02 5D 40 15 00 02 5E 00 15 00 02 5F 00 15 00 02 60 40 15 00 02 61 03 15 00 02 62 04 15 00 02 63 6C 15 00 02 64 6C 15 00 02 65 75 15 00 02 66 08 15 00 02 67 B4 15 00 02 68 08 15 00 02 69 6C 15 00 02 6A 6C 15 00 02 6B 0C 15 00 02 6D 00 15 00 02 6E 00 15 00 02 6F 88 15 00 02 75 BB 15 00 02 76 00 15 00 02 77 05 15 00 02 78 2A 15 00 02 E0 04 15 00 02 37 58 15 00 02 00 0E 15 00 02 02 B3 15 00 02 09 61 15 00 02 0E 48 15 00 02 E0 00 05 32 01 11 05 05 01 29 15 32 02 35 00 ]; panel-exit-sequence = [ 05 14 01 28 05 50 01 10 ]; display-timings { native-mode = <&dsi1_timing0>; dsi1_timing0: timing0 { clock-frequency = <68215200>; hback-porch = <20>; hactive = <800>; hfront-porch = <20>; hsync-len = <20>; vback-porch = <8>; vactive = <1280>; vfront-porch = <30>; vsync-len = <4>; }; }; port { panel_in: endpoint { remote-endpoint = <&dsi_out_panel>; }; }; }; }; &dsi0combophy { status = "disabled"; }; &dsi1combophy { status = "okay"; };
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回复: 只用的全志的板子,怎么才能往rootfs中添加文件
target/allwinner/t113-nezha/base-files
target/allwinner/t113-nezha/busybox-init-base-files根据选择的overlay方式而定
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回复: TLT113-MiniEVM 启动引导失败:E/TC:0 0 check_hardware_info:90 hardware check error1
@scanli 请问设备是否刷写过安全启动?如果没有刷写过但是出现这个情况可以做以下临时修改
在
device/config/chips/t113_i/configs/default/
修改boot_package.cfg
删除optee.fex
行在
lichee/linux-5.4/arch/arm/boot/dts/sun8iw20p1.dtsi
中注释psci { compatible = "arm,psci-1.0"; method = "smc"; };
前往
lichee/linux-5.4/arch/arm/mach-sunxi/platsmp.c
加入static int sun8i_t113_smp_boot_secondary(unsigned int cpu, struct task_struct *idle) { u32 reg; void __iomem *cpucfg_membase = ioremap(0x09010000, 0x10); void __iomem *cpuexec_membase[] = {ioremap(0x070005C4, 0x10),ioremap(0x070005C8, 0x10)}; if (cpu != 1) return 0; spin_lock(&cpu_lock); writel(__pa_symbol(secondary_startup), cpuexec_membase[cpu]); reg = readl(cpucfg_membase); writel(reg | BIT(cpu), cpucfg_membase); spin_unlock(&cpu_lock); return 0; } static const struct smp_operations sun8i_t113_smp_ops __initconst = { .smp_boot_secondary = sun8i_t113_smp_boot_secondary, }; CPU_METHOD_OF_DECLARE(sun8i_t113_smp, "allwinner,sun8iw20p1", &sun8i_t113_smp_ops);
注意这只是临时修改跳过检查,之后最好使用创龙提供的虚拟机复现看看会不会也出现这个问题
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回复: rs485的设备树怎么修改
DE和RO为使能管脚。DE为低电平、RE为低电平时为接收;DE为高电平、RE为高电平时为发送;RO和DI为数据管脚。RO为接收,DI为发送;因此我们经常将DE和RE直接连接,用一个IO口控制。
需要添加以下三个成员:
- sunxi,uart-rs485
- 0:485模式关闭
- 1:485模式使能
- sunxi,uart-485fl
- 0:485 gpio管脚数值为0时表示发送状态
- 1:485 gpio管脚数值为1时表示发送状态
- sunxi,uart-485oe-gpios
- 用于外部转换芯片使能信号的gpio引脚,GPIO_ACTIVE_HIGH含义为默认为高电平
示例:
uart1: uart@2500400 { ... status = "okay"; //添加以下三行 sunxi,uart-rs485 = <1>; sunxi,uart-485fl = <1>; sunxi,uart-485oe-gpios = <&pio PG 8 GPIO_ACTIVE_HIGH>; };
A40I 5.10 内核:
uart5_pins_a: uart5_pins@0 { pins = "PH6", "PH7"; function = "uart5"; }; uart5_pins_b: uart5_pins@1 { pins = "PH6", "PH7"; function = "gpio_in"; }; &uart5 { pinctrl-names = "default", "sleep"; pinctrl-0 = <&uart5_pins_a>; pinctrl-1 = <&uart5_pins_b>; rs485-enable = <0>; rs485-mode = <0>; /* defalut 0:rx 1:tx */ rs485-mode-pin = <&pio PH 8 GPIO_ACTIVE_LOW>; status = "disabled"; };
- sunxi,uart-rs485
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回复: mboot和mkernel可以代替make命令吗
mboot,mkernel是编译boot和内核的,并没有编译rootfs,如果已经编译好了rootfs则可以代替,如果没有编译rootfs则需要make来编译rootfs