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[0/7] mtd: rawnand: sunxi: Bug fixes and cleanup

Message ID 20221229181526.53766-1-samuel@sholland.org (mailing list archive)
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Series mtd: rawnand: sunxi: Bug fixes and cleanup | expand

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Samuel Holland Dec. 29, 2022, 6:15 p.m. UTC 
I have an A33 tablet with MLC NAND, and I wanted to use mainline Linux
to dump the NAND. To do that, I updated this driver's ECC ops to fully
utilize the hardware for ECC and scrambling. This made the driver
compatible with the existing (scrambled) on-flash bad block map, and I
was able to read the full NAND contents.

This series contains some initial bug fixes and cleanup from that
effort. The changes to the ECC ops will come as a separate series.


Samuel Holland (7):
  mtd: rawnand: sunxi: Clean up chips after failed init
  mtd: rawnand: sunxi: Remove an unnecessary check
  mtd: rawnand: sunxi: Remove an unnecessary check
  mtd: rawnand: sunxi: Fix ECC strength maximization
  mtd: rawnand: sunxi: Fix the size of the last OOB region
  mtd: rawnand: sunxi: Update OOB layout to match hardware
  mtd: rawnand: sunxi: Precompute the ECC_CTL register value

 drivers/mtd/nand/raw/sunxi_nand.c | 132 ++++++++++--------------------
 1 file changed, 42 insertions(+), 90 deletions(-)