Pine RockPro64

Hi, I am using rockpro64 "https://www.pine64.org/?product=rockpro64-4gb-single-board-computer" that uses Rockchip RK3399 Hexa-Core (dual ARM Cortex A72 and quad ARM Cortex A53) 64-Bit Processor. My simple application is to have a UART communication. When i run serial write with 1500000 Baudrate, then it works fine. But if i lower the baudrate such as 115200, then it throws garbage value. So can i get some suggestions here? Thanks.

THE MEDIA SCRIPT IS DEPRECATED, IN FAVOR OF THE LEGACY MULTIMEDIA INTEGRATION. PLEASE REFER TO THIS TOPIC: So finally we have the first version of: The UN-official, UN-supported, etc... RK3399 MEDIA TESTING SCRIPT This is the first release of the RK3399 media testing script. The script provides a functionality similar to its RK3288 equivalent: Installing all the libraries and system configurations necessary for GPU accelerated X desktop, Chromium WebGL, full VPU video play acceleration up to 4k@60 10-bit HEVC (the maximum supported by the SoC), and GLES 3.2 / OpenCL 1.2 support. Three video players supporting full VPU accel…

Saw this over on the LKML... some folks might be interested in this one... http://lkml.iu.edu/hypermail/linux/kernel/1901.0/02233.html Changes checked in against staging... staging: video: rockchip: video codec for vendor API staging: video: rockchip: fixup for upstream staging: video: rockchip: add video codec arm64: dts: rockchip: add video codec for rk3399

I need one more component working. 3D and OpenCL. Has anyone successfully installed Panfrost on a RK3399 board ? Update! I manged to build the Panfrost X11 driver. Here's how I did it: https://panfrost.freedesktop.org/building-panfrost-mesa.html Before you create the build directory update the meson_options.txt file change platforms from auto to x11 change dri_driver from auto to swrast change gallium-drivers to panfrost cd to the build directory meson .. . -Ddri-drivers= -Dvulkan-drivers= -Dgallium-drivers=panfrost -Dlibunwind=false --prefix=/{wherever you want} ninja install …

Get this error when trying to install rtl8812au-dkms on a armbian ubuntu 18.04 desktop for rockpro64. Then when searching in aptitude for kernel-headers-4.4.166 then they are not available. It is also impossible to compile because of the missing kernels headers.

Hi, i would like to know if there will be armbian stretch for rock64pro. I tried images on official website, but there are all with alot of buggs + they have everything messed up with user. I need that clean new image for emmc card. I would start from basic debian stretch image, but i couldnt make it work with etcher. p.s. sorry for my bad English, this is not my native language Best regards, Bekim

Hi all, I got a libre rk3327 board, and i'm tyring to test my crypto and i'm not getting anywhere near the results you guys are getting here Is there something special i need to do to enable the hardware crypto? Linux renegade 4.4.138-rk3328 #3 SMP Sun Jul 1 20:15:37 UTC 2018 aarch64 GNU/Linux OpenSSL 1.1.0f 25 May 2017 built on: reproducible build, date unspecified options:bn(64,64) rc4(char) des(int) aes(partial) blowfish(ptr) compiler: gcc -DDSO_DLFCN -DHAVE_DLFCN_H -DNDEBUG -DOPENSSL_THREADS -DOPENSSL_NO_STATIC_ENGINE -DOPENSSL_PIC -DOPENSSL_BN_ASM_MONT -DSHA1_ASM -DSHA256_ASM -DSHA512_ASM -DVPAES_ASM -DECP_NISTZ256_ASM -DPOLY1305…

My application creates 15 threads. Since A53 has 4 cores it is likely that more threads will be spawned by A53. Is there a way to manipulate scheduling and create more threads through cortex A72 so that it compensates the delay. Examples 6 threads on A72 and 9 threads on A53. This way it ensures the run time does not fluctuate and we achieve peak performance.

Hello, Thank you ahead of time!! I realize there is not an armbian disro for the roc 3328 renegade. It does seem that you all can help with my issue though. I recently patched and compiled a kernel to run real time with the rt preempt. The issue I'm running into is this thing doesn't use grub , so I can't choose the kernel at boot up like a x86 and it doesn't have a config file like a rspi. Is there a way around this ? I'm way out of my comfort zone here. According to what I have read, I need to copy the vmlinuzrt18 to the area where the present kernel is being called now. I admitting find the whole u boot thing confusing. Can anyone help me out? Th…

Is it possible to load the A72 cortex with more computation work compared to A53 cortex? Specially during multithreading can i generate more cores on A72 cortex as it is significantly faster? While compiling there is a flag to select the appropriate cortex (-mtune=cortex-a72.cortex-a53) but it only generates appropriate cortex code. Any way to control these cortex based on the application?