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16 years ago
1. Adding a new platform
0) Create a mach/${PLATFORM} directory, which must contain the platform-
specific I/O routines for user interface and filesystem access.
1) Specify platform storage types, setup platform specific access methods
and strategies, or fall back on the defaults
2) Create platform-specific c_putc, c_getc, c_memsz
3) Create a platform_init() method; this will be the first method to be
called from start_bootloader(). This must register platform-specific
4) Build up any re-usable peripheral methods required - for example, if
your platform requires a new filesystem class (that may be seen in
other platforms), please add support for it in filesys.
2. Directory Structure
-> / - entry points, simple, common code
-> storage/ - the storage manager registering multiple storage classes
-> console/ - console I/O drivers
-> net/ - networking code (future)
-> mach/ - machine-specific code
-> c3600 - support for the Cisco 3600 Series
-> c1750 - support for the Cisco 1750 Series
-> c3725 - support for the Cisco 3725 Multiservice Router
-> include/ - headers for generic code
3.