Am 28.05.2014 13:55, schrieb Alexander Graf:
On 27.05.14 19:10, Guillaume Gardet wrote:
Le 27/05/2014 09:42, Jean Delvare a écrit :
Hi Guillaume, Andreas and all,
I am wondering if our default armv7 kernel is supposed to support the shmobile architecture? I see the following: shmobile is an ARMv7 from Renesas. It seems there are some boards out, but I have no such boards here. Not sure if there are cheap "open" boards availaible.
# CONFIG_ARCH_SHMOBILE_LEGACY is not set CONFIG_ARCH_SHMOBILE=y CONFIG_ARCH_SHMOBILE_MULTI=y CONFIG_SHMOBILE_TIMER_HZ=128 CONFIG_I2C_SH_MOBILE=m # CONFIG_VIDEO_SH_MOBILE_CSI2 is not set # CONFIG_VIDEO_SH_MOBILE_CEU is not set CONFIG_DRM_SHMOBILE=m # CONFIG_FB_SH_MOBILE_LCDC is not set # CONFIG_FB_SH_MOBILE_MERAM is not set # CONFIG_SHMOBILE_IOMMU is not set
which gives me the feeling that we half-support it, which is not terribly useful. Can we make a decision and either enable all these drivers or disable shmobile support altogether? I don't care which way we go, but I would enjoy some consistency. I agree we should either drop it or get a full support.
Maybe Dirk, Alex and/or Andreas have an opinion about this SoC support?
I don't see why we should proactively deactivate board support for systems that are successfully multiplatformed. On x86 we also don't deactivate support for a particular wifi card just because we don't happen to have it around, no?
The more coverage we have in the default kernel, the less effort a board bringup will be :).
I was going to reply that this is a directional question: In the past I had the impression that we only enabled things based on demand from our users and being able to test it on hardware. It seems that has changed lately towards enabling anything that doesn't hurt us in terms of kernel flavors and that may be useful to anyone. That would speak for enabling it. Practically, I'm not so sure what exactly is covered by "shmobile". There was a module with EMMA EV2: http://www.emtrion.de/dimm_emev2_en.php There's a Japenese Armadillo-800 EVA board with R-Mobile A1: http://armadillo.atmark-techno.com/armadillo-800-EVA There's also the automotive R-Car series with more interesting specs (big.LITTLE) that unfortunately they've been very tight-lipped about - might be separate from shmobile. Them not following up on business cards and emails could be considered an argument against enabling support for their SoCs as long as no one in the community actively asks for it. Then there's a Genmai board from Renesas, a module from emtrion and a low-cost Hachiko board from ArchiTech with the new RZ/A. The latter I recently inquired ArchiTech/Silica about - currently that board is shipping with only 10 MB on-chip SRAM, which I guess will be too little for openSUSE. http://www.renesas.eu/products/tools/introductory_evaluation_tools/starterki... http://www.emtrion.de/rzah_en.php http://www.architechboards.org/product/hachiko-board Cheers, Andreas -- SUSE LINUX Products GmbH, Maxfeldstr. 5, 90409 Nürnberg, Germany GF: Jeff Hawn, Jennifer Guild, Felix Imendörffer; HRB 16746 AG Nürnberg -- To unsubscribe, e-mail: opensuse-kernel+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse-kernel+owner@opensuse.org