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Commit ad4f54ea86b ("arm: Remove palmtreo680 board") removed the only
user of the docg4 driver and the palmtreo680 image flashing tool. This
patch removes them.
Signed-off-by: Scott Wood <[email protected]>
Cc: Mike Dunn <[email protected]>
Cc: Simon Glass <[email protected]>
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Correct spelling of "U-Boot" shall be used in all written text
(documentation, comments in source files etc.).
Signed-off-by: Bin Meng <[email protected]>
Reviewed-by: Heiko Schocher <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
Reviewed-by: Minkyu Kang <[email protected]>
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This adds a userspace linux utility that writes the u-boot image to an mtd
partition on the docg4 nand flash.
A special utility is required to do this because u-boot is partially loaded by
an initial program loader (IPL) that is permanently programmed to the boot
region of the flash. This IPL expects the image to be written in a unique
format. The characteristics of this format can be summarized as follows:
- Flash blocks to be loaded must have a magic number in the oob bytes of the
first page of the block.
- Each page must be written redundantly in the subsequent page.
- The integrated flash controller's "reliable mode" is used, requiring that
alternate 2k regions (4 pages) are skipped when writing.
For these reasons, a u-boot image can not be written using nandwrite from
mtd-utils.
Signed-off-by: Mike Dunn <[email protected]>
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