-- Floppy Disk Support:
- CONFIG_SYS_FDC_DRIVE_NUMBER
-
- the default drive number (default value 0)
-
- CONFIG_SYS_ISA_IO_STRIDE
-
- defines the spacing between FDC chipset registers
- (default value 1)
-
- CONFIG_SYS_ISA_IO_OFFSET
-
- defines the offset of register from address. It
- depends on which part of the data bus is connected to
- the FDC chipset. (default value 0)
-
- If CONFIG_SYS_ISA_IO_STRIDE CONFIG_SYS_ISA_IO_OFFSET and
- CONFIG_SYS_FDC_DRIVE_NUMBER are undefined, they take their
- default value.
-
- if CONFIG_SYS_FDC_HW_INIT is defined, then the function
- fdc_hw_init() is called at the beginning of the FDC
- setup. fdc_hw_init() must be provided by the board
- source code. It is used to make hardware-dependent
- initializations.
-