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| author | Aaron Sierra <asierra@xes-inc.com> | 2014-09-25 12:20:24 -0500 |
|---|---|---|
| committer | Brian Norris <computersforpeace@gmail.com> | 2015-01-09 23:24:27 -0800 |
| commit | 6958024ad5cdd78deae4da47a8722b06317dff45 (patch) | |
| tree | 14e081920d299eab8c7fa7ece0f67aefd60c37df /Documentation/DMA-API-HOWTO.txt | |
| parent | 3fc1cf5f0af4b625adff03c610f188fa8bc89911 (diff) | |
mtd: map_rom: Support UBI on ROM
UBI needs to know the physical erase block size, even on read-only
devices, since it defines the on-device layout. Use a device-tree
provided value to support previously written UBI on read-only NOR.
UBI also needs a non-zero writebufsize, so we set it to one.
Note: This was implemented because hardware write-protected CFI
NOR cannot be probed for the physical erase block size.
Signed-off-by: Joe Schultz <jschultz@xes-inc.ccom>
Signed-off-by: Aaron Sierra <asierra@xes-inc.ccom>
[Brian: removed unneeded #ifdef, note 'optional' erase-size property]
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Diffstat (limited to 'Documentation/DMA-API-HOWTO.txt')
0 files changed, 0 insertions, 0 deletions