lpd_imx31_sdhc                                                     readme.txt
ŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻ
lpd_imx31_sdhc is a SDHC driver supporting the IMX31 on chip SDHC interface.

This driver is supported under Logic Product Development's LoCE BSP v2.0.0+

By using this driver, you agree to Logic Product Development's WinCE BSP
EULA.  If you did not receive a copy of the EULA with this driver, please
email product.sales@logicpd.com or contact Logic Product Development at:

   Logic Product Development
   Attn: Logic Product Sales
   411 North Washington Avenue Suite101
   Minneapolis, MN U.S.A 55401
_____________________________________________________________________________

_______________
ToC
ŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻ
1 Release Notes
2 What's New
3 Known Issues
4 Dependencies
5 Using registry settings to configure Card and Write Protect GPIO pins
- Change Log
_______________


Please see the LoCE BSP Users Guide for general installation instructions.


1) Release Notes
ŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻ
--) This is a production release binary supporting the iMX31-LV SOM.

2) What's New
ŻŻŻŻŻŻŻŻŻŻŻŻŻ
--) First Production release.

3) Known Issues
ŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻ
--) NA

4) Dependencies
ŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻ
--) Depending on the desired functionality, One of the following catalog items
    or a compatible third party client driver is needed:
    .\Device Drivers\SDIO\SD Memory
    .\Device Drivers\SDIO\SDIO WIFI

--) Kernel release v2.1.9.0 or later
--) Must use with Audio driver revision 0.2.0 or later

5) Using registry settings to configure Card and Write Protect GPIO pins
ŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻ
This driver features registry-configurable Card Detect (CD) and Write Protect (WP)
detection pins.

Since the IMX31 has a highly configurable pin/pad iomux, a number of signals,
(like GPIO pins,) can "routed" to a small number of selected pads in the bga array.

Because of this tremendous flexibility it is necessary for the driver to know
not only which signals are being used but which pin io configurations and which
pads the signals are connected to.

The first step in this process is to determine the pins and pads used for
the CD and WP signals.

For the purposes of this example we will use the configuration required by the
SDK2 development base board, which are these GPIOS:

CD uses GPIO port 2 pin number 11
WP uses GPIO port 1 pin number 6

Having determined this, we can update the following entries in
the lpd_mx31_shdc.reg file:

    "CardDetectPort"=dword:2
    "CardDetectPin"=dword:B
    "WPDetectPort"=dword:1
    "WPDetectPin"=dword:6

NOTE: The wince registry items require values that are in hex

Next, we must update the following registry items with appropriate pad/pin
addresses.

    "CardDetectIomuxPadID"=dword:
    "CardDetectIomuxPinID"=dword:
    "WPDetectIomuxPadID"=dword:
    "WPDetectIomuxPinID"=dword:

Starting with the CD GPIO, we must first determine the appropriate mnemonic
to search for in the following file:

platform\loce\src\drivers\ce_drivers\DrvLib\imx31_csp\iomux\iomux.h

As mentioned earlier, every pad has a number of different signals that might be
routed to it, BUT the header file has only one mnemonic per pad/pin. Thus it MAY be
necessary to search for more than one of the potential mnemonics associated with
the pad. See the i.MX31 Technical Reference Guide for the iomux guide and
mnemonics for the pins and pads.

IMPORTANT NOTE: Confusingly enough, there are two sets of PIN definitions in this file
DO NOT use the entries in the "#ifdef VPMX31" section.

Once you have determined the appropriate pad and pin nnumbers these must be
converted to hex and then added to the registry configuration, thusly:

    "CardDetectIomuxPadID"=dword:4AA
    "CardDetectIomuxPinID"=dword:370
    "WPDetectIomuxPadID"=dword:D4A
    "WPDetectIomuxPinID"=dword:9E8

Once configured a series of simple tests will determine if you've got the right
configuration.

_____________________________________________________________________________
Change Log:
ŻŻŻŻŻŻŻŻŻŻŻ
--) v1.0.0
    ŻŻŻŻŻŻ
    + First Production release  

--) v0.1.0
    ŻŻŻŻŻŻ
    + Initial release

_____________________________________________________________________________
Copyright (c) 2008 Logic Product Development          http://www.logicpd.com/