linux-toradex.git/drivers/memory/emif.h, branch v3.16-rc7

memory: emif: handle frequency and voltage change events

2012-05-02T17:52:09+00:00

Change SDRAM timings and other settings as necessary
on voltage and frequency changes. We calculate these
register settings based on data from the device data
sheet and inputs such a frequency, voltage state(stable
or ramping), temperature level etc.

TODO: frequency and voltage change handling needs to
be integrated with clock framework and regulator
framework respectively. This is not done today
due to missing pieces in the kernel.

Signed-off-by: Aneesh V 
Reviewed-by: Santosh Shilimkar 
Reviewed-by: Benoit Cousson 
[santosh.shilimkar@ti.com: Moved to drivers/memory from drivers/misc]
Signed-off-by: Santosh Shilimkar 
Tested-by: Lokesh Vutla 
Signed-off-by: Greg Kroah-Hartman

memory: emif: add basic infrastructure for EMIF driver

2012-05-02T07:10:49+00:00

EMIF is an SDRAM controller used in various Texas Instruments
SoCs. EMIF supports, based on its revision, one or more of
LPDDR2/DDR2/DDR3 protocols.

Add the basic infrastructure for EMIF driver that includes
driver registration, probe, parsing of platform data etc.

Signed-off-by: Aneesh V 
Reviewed-by: Santosh Shilimkar 
Reviewed-by: Benoit Cousson 
[santosh.shilimkar@ti.com: Moved to drivers/memory from drivers/misc]
Signed-off-by: Santosh Shilimkar 
Tested-by: Lokesh Vutla 
Signed-off-by: Greg Kroah-Hartman

memory: emif: add register definitions for EMIF

2012-05-02T07:05:51+00:00

Add register offsets and bit field definitions
for EMIF module in TI SoCs

Signed-off-by: Aneesh V 
Reviewed-by: Santosh Shilimkar 
Reviewed-by: Benoit Cousson 
[santosh.shilimkar@ti.com: Moved to drivers/memory from drivers/misc]
Signed-off-by: Santosh Shilimkar 
Tested-by: Lokesh Vutla 
Signed-off-by: Greg Kroah-Hartman