This brings consistency to the way variables are named and used
according to the Freescale documentation. Also, since user is
supplying row indicies, and not offsets, it's reasonable to amend the
error message accordingly.
Signed-off-by: Paul Fertser <fercerpav@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
To allow for some generic io accessors introduce io.h and use
this instead of asm/io.h throughout the tree.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
The register based fuse readout is not available on i.MX27/31
SoCs, so make explicit sensing the default.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
The IIM module uses two drivers, one for the general IIM
module and one for the individual banks.
This patch turns this into a single driver to ease registration
of the resources. This changes the user visible behaviour in
the way that the explicit_sense_enable and permanent_write_enable
device parameters are no longer bank specific but for the
whole device. Also, the IIM module supports a maximum of
8 fuse banks, with these patch all of them are registered, even
if they are not present in a SoC.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This driver provides an interface for programming and sensing the IIM fusebox
which is present on some i.MX chips.
Since the IIM io addresses of the controlling registers and each fuse bank are
are not contiguous the driver implementation uses two drivers, imx_iim, and
imx_iim_bank. The imx_iim is the "parent" driver for a device holding the
map_base address of the control registers. The imx_iim_bank driver is for
child devices holding the map_base of each fuse bank. The platform code then,
instantiate one imx_iim_bank device per fuse bank.
Fuses blow is a dangerous operation. Thus, the fuses blow functionality can be
disabled independently at configuration time. On run time this functionality
must be enabled explicitly by setting the permanent_write_enable parameter.
Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Sascha Hauer
Jean-Christophe PLAGNIOL-VILLARD
Paul Fertser
Baruch Siach