we want it (we don't support the 020 without an 851 anyway). Note that
M68030 no longer implies support for 020+851.
This also allows us to compile with -m68030 iff M68020 isn't specified
in the config file.
assumes that pci_map_mem/pci_map_io provide interfaces which utilitize
bus_{io,mem}_handle_t's, or types which are compatible. This works on the
i386, and will change eventually anyway.)
for U_INT8, INT16, U_INT16 definitions. Convert structs and
definitions in ncr_reg.h (e.g. ncrcmd, the chip register layout, etc.)
to use these definitions.
Add INB_OFF, INL_OFF, and OUTL_OFF macros to access specified offsets into
I/O or memory space. Convert register dumps (etc.), and cache snoop
test to use these new macros, so that nothing accesses the device
I/O or memory space directly. (Register dumps now come from I/O space
if NCR_IOMAPPED. They used to bogusly use memory space.)
Add a new relocation type for script entries, RELOC_KVAR. Allow scripts
access to mono_time.tv_sec, mono_time, and ncr_cache via this
mechanism, and convert scripts to use it. An ncrcmd is only 32 bits
wide, and KVAs may be > 32 bits wide (e.g. on Alpha), leading to
linker problems. This is a safer way to do this anyway; relocation is
more deterministic this way, and doesn't rely on KVAs not looking like
other relocation types.
Panic if an unmatched relocation other than 'zero' is specified. That's
now a script bug. (This used to be used to convert KVAs of kernel
variables referenced in the script to PCI bus physical addresses,
and that is now handled by RELOC_KVAR relocations.)
Figure out and print the model of chip.
assumes that pci_map_mem/pci_map_io provide interfaces which utilitize
bus_{io,mem}_handle_t's, or types which are compatible. This works on the
i386, and will change eventually anyway.)
multiport cards no longer need 'flags 1', because the "don't set IEN"
requirement is communicated by the commulti_attach_args. com.c no longer
recognizes 'flags 1' at all.
substantial reworking of the multi-port drivers, as they need to frob
bits in the io-port spaces of their children. As a result, the
commulti->com attachment interface is substantially more complex.
(This may be fixable in the future by making some of the code common,
but as long as io-port allocation checking is planned, it's necessary.)
partition, add the MBR partitions to the default (faked-up)
disklabel used by NetBSD if it can't find a real one. If the
type of the MBR partition is one of the common DOS ones, mark the
partition as having an MSDOS filesystem.
macro where appropriate. No point in hard-coding numbers in multiple places.
At the very least, this makes the drivers slightly easier to diff/understand.
scottr