EFA(4) | Device Drivers Manual (amiga) | EFA(4) |
efa
—
efa0 at mainbus0
efa
driver provides support for the FastATA 1200
family of IDE controllers and provides the interface with the hardware for the
ata(4) driver. PIO modes 0, 3, 4
and 5 are supported.
efa
driver supports the following hardware:
efa
device first appeared in NetBSD
6.0.
efa
driver was written by Radoslaw
Kujawa
<radoslaw.kujawa@gmail.com>.
These devices do not generate hardware interrupts and need to be driven in non-standard polling mode. Code needed to support it is present in driver but does not work correctly.
Some of the above devices were also marketed under PowerFlyer and Winner brands.
The onboard Gayle IDE controller can not be used when FastATA is
installed and therefore, the efa
driver will not
coexist with wdc(4) driver
attached to mainbus(4).
Both efa
and
wdc(4) can be enabled in the
same kernel, but only one will attach (depending on the return value of
probe function in the efa
driver).
DMA modes are not supported, this is a hardware limitation.
Disks partitioned in split mode, which is specific to official AmigaOS FastATA driver, are not recognized in NetBSD.
April 13, 2012 | NetBSD 9.4 |