Hi, Felipe Contreras wrote: > Hi, > > I was trying the iommu patches but I noticed the tidspbridge driver > doesn't work at all, I found two critical issues: > > First, the platform device is missing, so there's no way the driver > can work. It seems to have been dropped from the migration to staging > which happened some time ago... I would have expected somebody to > notice a thing like this. I already have patches that fix this.
Yes this is missing from beginning, I seeked advice on whether to send a patch for this or not, and since it would be touching mach dependent files it would be out of the scope of staging tree, however if needed: http://dev.omapzoom.org/?p=tidspbridge/kernel-dspbridge.git;a=commit;h=4dcb41d484653d162b2bc6e1bf226c2dad0b953c This was meant to placed under dspbridge wiki, I still have to do that one. > > And second, since 2.6.35, ioremap() doesn't work on RAM, so this > driver cannot work anymore unless 309caa9 is reverted. I am reserving > the memory with memblock, but it still fails the ioremap(), and > __va() doesn't seem to work (don't know why). > Yes that's true, so far the only solution I have seen is to move the allocation on memory outside kernel control, I believe framebuffer has the same problem, but I haven't contacted them to see if we can align on a common solution. > Has anyone tried the driver on 2.6.36-rcX? Yes I have, I was rebasing your mailbox hwmod patches but seems something has changed since they don't work, I was trying to write my own version. After that, I was planning the migration from bridge tasklet to a process context, and see how it works, since the spin_lock method used in the mailbox driver also causes an invalid locking condition. Regards, Omar-- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
