Hello Tony and others, I have found some personal time during holydays[*] and proceed furhers with RICO board support for perspective kernel versions. I have prepared a device tree which provides quite complete board support for the most of peripherals found on MyIR AM437x Ricoboard. I have tested the kernel on the real board which I have bought for myself to do testing and can contribute previous work to to mainline. LEDs, Ethernet, LEDs, SDcard, eMMC, onboard SPI NVM etc. works. Generally the AM437x mainline support is great except for SGX. It has been pleasant to work with it. I used TFTP boot and ramdisk overlay over NFS exported Debian Jessie RO chroot install. Only significant missing piece is HDMI support. I have put setup which I prepared for Ti kernels to device-tree. But mainline supports SII9022 HDMI encoder only by drivers/gpu/drm/bridge/sii902x.c but OMAP DSS changes "sil,sii9022" in device-tree to omapdss,sil,sii9022 which seems to be customized version found in Texas Instruments tree drivers/gpu/drm/omapdrm/displays/encoder-sii9022-video.c Do you know if there are some plans to support combination of this driver or include customized version in mainline for OMAP? I expect that non accelerated graphic with parallel LCD panel would work with 4.9 mainline kernel and the prepared device tree if #if 0 is changed to #if 1. The 4.9 mainline support files can be found there http://pikron.com/files/linux/rico/linux-4.9/am437x-myir-ricoboard.dts http://pikron.com/files/linux/rico/linux-4.9/am437x-myir-ricoboard.dtb http://pikron.com/files/linux/rico/linux-4.9/config-4.9-mainline-myir-ricoboard I would be happy if they can help others, some feedback and cooperation would be great as well. I would be happy to contribute DTS to mainline if it is found acceptable. I can prepare version without HDMI or complete DSS section if actual untested/able section is unacceptable. Because of missing HDMI support and attempt to test SGX accelerated support, I have tried official Ti Processor SDK image for AM437x (am437x-evm-linux-03.02.00.05). I have prepared DTS and tested it with my overlay enabled kernel and Debian and Ti root filesystems as well as with original Ti kernel. There are files for use with HDMI connected monitor files/linux/rico/linux-ti-4.4/am437x-myir-ricoboard-hdmi.dts files/linux/rico/linux-ti-4.4/am437x-myir-ricoboard-hdmi.dtb files/linux/rico/linux-ti-4.4/config-ti-4.4-myir-ricoboard and another set for parallel LCD panel (untested) files/linux/rico/linux-ti-4.4/am437x-myir-ricoboard.dts files/linux/rico/linux-ti-4.4/am437x-myir-ricoboard.dtb I have managed to build SGX driver for my kernel configuration and from the testing of Ti image it seem to be used same way as for original Ti kernel build. I have no luck with accelerated Xorg. But Ti release notes states that Xorg support is missing in 03.02.00.05. There is question if it is permanent status or if there is some change. Is there chance that Ti includes this prepared DTS in their kernel branch? For sure mainline 4.9 support is even more interesting for me and future. Best wishes, Pavel [*] Our company partner cares mainly (and may be pays something) for my work on maintenance of ancient MyIR Linux 3.12.10 kernel in their products. And MyIR company does not seem to really care about users and updates at all even if the enhancements are sent them for free. Typical experience but great thing about this board is that a schematic diagram is provided which makes possible to develop proper support. -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
