Dear "Steven A. Falco",
In message 48A35533.1010901@harris.com you wrote:
The following patch adds the ability to call-out from the ide_ident routine to a board-specific routine to set the PIO mode of an attached device.
This feature is controlled by the preprocessor variable CONFIG_TUNE_CFA.
What does CFA mean?
cmd_ide.c is modified to use the "drive identify information" read from the device to compute a pio mode in the range 0 to 6. This is then passed to a board-specific routine, ide_set_piomode, to set the mode in hardware.
Two other files are touched: file ata.h, to include word 163, which is the "advanced CF parameters", and file ide.h, to add a prototype for the board-specific routine (again controlled by the CONFIG_TUNE_CFA variable).
Is there a specific reason for using #ifdef's instead of a weak function?
Best regards,
Wolfgang Denk