On Tue, Apr 1, 2008 at 11:03 AM, Marcelo Dalmas <[EMAIL PROTECTED]> wrote: > Hi all! > > I'm updating a device driver from linux 2.6.16 ppc > tree to linux 2.6.24 powerpc in a lite5200 based > board. > > I need to access mpc52xx_mmap_ctl and mpc52xx_cslpc. > > In ppc tree I do: > > mmap_ctl = > ioremap(MPC52xx_PA(MPC52xx_MMAP_CTL_OFFSET), > MPC52xx_MMAP_CTL_SIZE) > > How can I access it in powerpc tree?
1) In your device tree, add a new node for the local plus bus control registers with the correct base address. 2) Use of_find_compatible_node() to get a pointer to the node in your platform init code. 3) Use of_iomap() to map the registers into the kernel address space. Cheers, g. -- Grant Likely, B.Sc., P.Eng. Secret Lab Technologies Ltd. _______________________________________________ Linuxppc-embedded mailing list Linuxppc-embedded@ozlabs.org https://ozlabs.org/mailman/listinfo/linuxppc-embedded
