On 09/02/2016 10:36 PM, Jason Gunthorpe wrote: > On Fri, Sep 02, 2016 at 09:51:21AM -0500, Rob Herring wrote: >>> +- linux,sml-base : base address of the Event Log. It is a physical address. >>> + sml stands for shared memory log. >> >> How is it a physical address on an i2c device? Why 2 cells (which needs >> to be documented also)? > > To be clear, as I understand it, this mechanism is a hand off from the > boot firmware to Linux. > > The boot firmware talks i2c to the device, does some stuff, writes it > to memory and then linux reads that stuff. I agree it seems crazy to > include a random physical address like that. > > The linux,sml-* names appear to have been used by IBM for a long time > on their enterprise PPC platforms (see drivers/char/tpm/tpm_of.c), so > I've expected we have to keep them? > > I asked Nayna to document this stuff IBM is doing so the rest of us > in TPM land can have a hope of maintaining it...
Thanks Jason !! In my v2 version for device tree documentation, I have posted the documentation for both vtpm and physical TPM. > > Jason > ------------------------------------------------------------------------------ _______________________________________________ tpmdd-devel mailing list tpmdd-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/tpmdd-devel
