On Friday 09 September 2005 22:21, Murch, Christopher wrote: > We've recently applied the 2.6.13 patch. We're running on an embedded > platform using 3 of the cpm uart ports on an 8xx cpu. After applying the > 2.6.13 patch the non-console uarts no longer work. Upon investigation, we > have found that cpu2cpm_addr() is giving us invalid results for memory > addresses derived from dma_alloc_coherent(). This causes the cpm to hang. > We believe that the better approach would be to use the dma address > supplied by the call to dma_alloc_coherent() instead of trying to convert > using bus_to_virt() and virt_to_bus(). We believe this is the approach > taken by other drivers in the 2.6 kernel. Any comments? > Thanks for your help. >
Yes, it would be proper. This is a temporary hack. What is the IMAP_ADDR value? And where is the consistent pool located at your board? > -Chris > cmurch at mrv.com Regards Pantelis
