Simon Glass a60fdbdfcb Fix flash_dataptr() to support flash at zero ...

If flash starts at zero, then flash_dataptr() will return NULL for a valid
region. Change the function around so that it can be used in this case.

BUG=chrome-os-partner:10146
TEST=manual:
Modify code it print out parameters and problems, then:
Writing 256 bytes to 0x0...
0 256 64
ok 131072
Command returned error 1
> flashwrite 0 256
Writing 256 bytes to 0x0...
0 256 64
ok 131072
Command returned error 1
> flashwrite 0 255
Writing 255 bytes to 0x0...
0 255 64
Command usage/param invalid.
Usage: flashwrite offset [size]

Change-Id: I5683fc181ef780310ceff50f120735659e973784
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/26749
Reviewed-by: David Hendricks <dhendrix@chromium.org>
Reviewed-by: Rong Chang <rongchang@chromium.org>

2012-07-03 23:51:09 -07:00

7.3 KiB

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