I have a dual 8247 platform that I ported u-boot 1.1.4 to awhile back. I have been asked to go ahead to move the changes to the current version. Right now the include/mcp8260.h has only minimal knowledge of the 8272 series, only changing the CPI_ID_STR as appropriate. On these processors the SIUMCR register and the bits in the HRCW are different than they are on 8260 (and 8270, 8280 etc). In 1.1.4 I just had #ifdef 's to support the differences, but I know people don't like the headers littered with them (actually 4). This platform will not have wide distribution so pushing all the changes upstream is not necessary, but I would like to push these base infrastructure changes up so others can use them as they build with these chips. So I am looking for an opinion as to which strategy to use: Put the #ifdefs in Put the new options in without #ifdefs (a mpc8260 define changes the same bit as a mpc8272 one does) Duplicate the mpc8260.h into a mpc8272.h file or split out the processor specific sections into a separate include and have a single ifdef in the mpc8260.h that includes the right one. Or maybe no one is interested in these changes, I am open to suggestions.
Also this platform has two processors (core disabled on the second one) and was wondering if anyone was interested in supporting more than one iop_conf_tab in the system. Right now the functions that set up the CPM assume there is only one in a system (one immr) so the changes are not pretty. This could be fixed to support generic configuration of multiple CPM's by passing the immr to be configured. If there is interest I can also clean up these changes and send them up. Or did slave processors go out of vogue with the 68360.
Paul