User's Guide: Flash/NAND doc tweaks
authorDavid Brownell <>
Mon, 9 Nov 2009 20:02:23 +0000 (12:02 -0800)
committerDavid Brownell <>
Mon, 9 Nov 2009 20:02:23 +0000 (12:02 -0800)
Rename the "Drivers, Options, and Commands" sections to be
just "Driver List" matching the earlier reference.  Add an
example of parallel CFI flash.

Signed-off-by: David Brownell <>

index d869f389fbd8c3c3b2286c3a07764702f57d26b2..8e1d1a8f60614d51c9d70fbc74d128f100dd4cd7 100644 (file)
@@ -3688,7 +3688,7 @@ The @var{num} parameter is a value shown by @command{flash banks}.
 @end deffn
 @anchor{Flash Driver List}
-@section Flash Drivers, Options, and Commands
+@section Flash Driver List
 As noted above, the @command{flash bank} command requires a driver name,
 and allows driver-specific options and behaviors.
 Some drivers also activate driver-specific commands.
@@ -3704,7 +3704,7 @@ specific external chip select on the CPU.
 Frequently the first such chip is used to boot the system.
 Your board's @code{reset-init} handler might need to
 configure additional chip selects using other commands (like: @command{mww} to
-configure a bus and its timings) , or
+configure a bus and its timings), or
 perhaps configure a GPIO pin that controls the ``write protect'' pin
 on the flash chip.
 The CFI driver can use a target-specific working area to significantly
@@ -3725,6 +3725,15 @@ wide on a sixteen bit bus:
 flash bank cfi 0x00000000 0x01000000 2 2 $_TARGETNAME
 flash bank cfi 0x01000000 0x01000000 2 2 $_TARGETNAME
 @end example
+To configure one bank of 32 MBytes
+built from two sixteen bit (two byte) wide parts wired in parallel
+to create a thirty-two bit (four byte) bus with doubled throughput:
+flash bank cfi 0x00000000 0x02000000 2 4 $_TARGETNAME
+@end example
 @c "cfi part_id" disabled
 @end deffn
@@ -4620,7 +4629,7 @@ with the wrong ECC data can cause them to be marked as bad.
 @end deffn
 @anchor{NAND Driver List}
-@section NAND Drivers, Options, and Commands
+@section NAND Driver List
 As noted above, the @command{nand device} command allows
 driver-specific options and behaviors.
 Some controllers also activate controller-specific commands.

Linking to existing account procedure

If you already have an account and want to add another login method you MUST first sign in with your existing account and then change URL to read to get to this page again but this time it'll work for linking. Thank you.

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+--[ED25519 256]--+
|=..              |
|+o..   .         |
|*.o   . .        |
|+B . . .         |
|Bo. = o S        |
|Oo.+ + =         |
|oB=.* = . o      |
| =+=.+   + E     |
|. .=o   . o      |
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