Hi, * Pavel Pisa <ppisa@xxxxxxxxxx> [170105 08:54]: > 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. OK nice. Please start sending the patches to linux-omap, linux-arm-kernel and devicetree mailing lists so we can start merging in the support :) > 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 Seems OK for the dts on a quick glance. Tomi and Jyri would know more about the HDMI support. > 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. Yeah let's do that first, then you can figure out the HDMI part. > 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. No idea about the above really, but the basic support seem very much straight forward. Regards, Tony > [*] 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
