Hi, all. I am working on Frame buffer driver to support for HD output. Take 720p resolution as example: it will need up to 1280*720*16/8 * 3 (5M) memory to buffer. using dma_alloc_coherent() to allocate 5M memory will fail, thus, I try to reserve the FB buffer on system boot.What I do is just pass a fix physical address such as 0xF000000 to mem_alloc(), then nothing changed except that set u-boot to mem=120M.
But nothing output when kernel is up.I don't know where is wrong. _______________________________________________ Davinci-linux-open-source mailing list [email protected] http://linux.davincidsp.com/mailman/listinfo/davinci-linux-open-source
