On Sunday, April 05, 2015 at 04:48:24 AM, Stephen Warren wrote: > When we communicate with the VideoCore to perform property mailbox > transactions, that is a DMA operation as far as the property buffer > is concerned. Use phys_to_bus() on that buffer. > > Signed-off-by: Stephen Warren <[email protected]> > --- > While this isn't USB-related, it does depend on patches that went into > the USB topic/dwc2 tree. Either this can be merged there, or we'll have > to wait until that branch is merged into u-boot/master and then merge > this. > > As best I can tell, this is the last place we need to do this. SDHCI has > potential but CONFIG_MMC_SDMA isn't set so I don't believe the code does > any DMA. LCD has potential, but the VideoCore allocates the display > surface, programs the display engine, and passes the surface's CPU pointer > back to the CPU in a firmware message, of U-Boot isn't involved in setting > up the DMA HW. > --- > arch/arm/cpu/arm1176/bcm2835/mbox.c | 5 +++--
I don't mind picking this up, but please rebase on top of u-boot/master, which contains d6c418e4b8036038505ac67bf5d85a19ca2c650d . Thanks! Best regards, Marek Vasut _______________________________________________ U-Boot mailing list [email protected] http://lists.denx.de/mailman/listinfo/u-boot
