@mez62
哎!太苦了,其它人都在干项目。欢迎更多爱好者能够加入一起维护。
Posts
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RE: 6.1 Kernel GPU firmware updateposted in PI CM5 Laptop
@plumlis
内核默认启用了panther的GPU驱动,需要先把mesa更新到24.02版本,否则就会黑屏。sudo add-apt-repository ppa:oibaf/graphics-drivers sudo apt update sudo apt-get dist-upgrade -
RE: 6.1 Kernel GPU firmware updateposted in PI CM5 Laptop
@plumlis
内核需要修改增加驱动支持。应用层驱动已经有各个版本的ppa源支持。 -
RE: DMAposted in Pi 4B
@happyday
下图是SPI1对应的属性配置,把dmas和dma-names复制到DTS文件对应节点即可。spi1: spi@feb10000 { compatible = "rockchip,rk3066-spi"; reg = <0x0 0xfeb10000 0x0 0x1000>; interrupts = <GIC_SPI 327 IRQ_TYPE_LEVEL_HIGH>; #address-cells = <1>; #size-cells = <0>; clocks = <&cru CLK_SPI1>, <&cru PCLK_SPI1>; clock-names = "spiclk", "apb_pclk"; dmas = <&dmac0 16>, <&dmac0 17>; dma-names = "tx", "rx"; pinctrl-names = "default"; pinctrl-0 = <&spi1m1_cs0 &spi1m1_cs1 &spi1m1_pins>; num-cs = <2>; status = "disabled"; }; -
RE: GenBook-RK3588 Crowdfunding projectsposted in PI CM5 Laptop
@plumlis
当然要和Thinkpad的键盘没法比较,但是确实从来没有收到过键盘会误触 吞键的问题,这套模具我们工厂X86一年几十万台出货量的。如果确实是单体有问题,直接申请售后就好了。这个没关系的。 -
RE: 功耗问题和FPGA IO扩展posted in PI CM5 Laptop
关于功耗数据这部分,下面数据供参考
- ubuntu22.04主界面电流在500ma左右,

- 本地4K高码率视频播放电流在680ma左右

- 网络视频播放电流在730ma左右

- 待机电流
8+64配置 7.4V/6ma 32+64配置 7.4V/8ma - 关机电流
7.4V/270ua
关于散热处理
目前采用的被动散热方式可以满足正常的办公 娱乐 包括软件开发编译。但是如果一定要CPU长时间工作在满负载状态,那肯定需要主动散热,这个是由RK3588自身功耗决定的,结合目前平板电脑和手机的散热处理方式,日常使用场景被动散热可以满足要求。
从半导体的特性分析,长时间的高温是会缩短CPU的寿命。对于能否用来做主力本,还是要评估使用场景。
机器主板本身是有预留主动散热器风扇接口,这个有条件的话也可以DIY改装,我们可以提供支持。关于FPGA的连接问题
目前FPC连接器提供以下接口
- PCIe 2.0x1/USB 3.0/SATA 3.0 (pick one out of three)
- 2x USB 2.0 HOST interfaces
- 1x Gigabit Ethernet
- 1x SDMMC 3.0
- UART, SPI, I2C, GPIO

- ubuntu22.04主界面电流在500ma左右,
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6.1 Kernel GPU firmware updateposted in PI CM5 Laptop
Version 6.1 of the kernel requires updating the GPU's bin file by replacing the attached bin file in the system /lib/firmware directory. Otherwise, the old bin file will cause a black screen during system startup.
mali_csffw.bin -
RE: GenBook-RK3588 Crowdfunding projectsposted in PI CM5 Laptop
@mainbord
At present, the edp function of the mainline kernel has not been debugged yet, and can only output HDMI temporarily. So the LCD is currently unable to display properly. The main line currently has DTS configuration for CM5-EVB, and after comparing it with the updates on Notebook, it can start up normally. -
RE: SPIposted in Pi 4B
@happyday
这个文档已经写的很清楚了,SPI的DMA部分跟传输的字节长度有关系的,单次传输64字节以上的数据就会开启DMA传输。linux标准的SPI驱动框架,不知道你是要做设备驱动还是应用层直接访问?

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Upgrade CM5's miniloader and uboot using the dd commandposted in PI CM5 Laptop
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When the coolpi-kernel is synchronized to the latest compiled and updated kernel, the system will display a device node of /dev/mtdblock0.

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Synchronize the coolpi-loader code to the latest version, switch to the develop branch, compile and generate cm5-notebook-nor-upgrade. img

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Use the following command to update:
sudo dd if=/**/cm5-notebook-nor-upgrade.img of=/dev/mtdblock0 bs=1k count=8192- You can also directly use the Disk Image Writer built-in in the Ubuntu system to update

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RE: After suspend scaling_max_freq set to lowest. and some perfomance tweakposted in PI CM5 Laptop
@plumlis
This method has been tried before, and as you said, the actual effect can be seen in the Ubuntu system. However, if it is a system with kylin and uos, it must always run in performance mode to run smoothly. We will re evaluate whether to update to the existing kernel configuration. Thank you for your suggestion.