path: root/nand_spl
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authorFlorian Fainelli <>2011-04-03 18:23:56 +0200
committerScott Wood <>2011-04-15 15:53:11 -0500
commitaad99bbc396a2e3b2913adcb02ed61d6d7e0f1ec (patch)
tree7c0200e8d07fa010dd5af573070c74d501b666c6 /nand_spl
parenta931f49296fa2406abf3c21ea97697513571b7fb (diff)
NAND: rearrange ONFI revision checking, add ONFI 2.3
This patch sync with Brian's patch on Linux in nand_flash_detect_onfi() commit b7b1a29d94c17e4341856381bccb4d17495bea60 Author: Brian Norris <> Date: Sun Dec 12 00:23:33 2010 -0800 mtd: nand: rearrange ONFI revision checking, add ONFI 2.3 In checking for the ONFI revision, the first conditional (for checking "unsupported" ONFI) seems unnecessary. All ONFI revisions should be backwards-compatible; even if this is not the case on some newer ONFI revision, it should simply fail the second version-checking if-else block (i.e., the bit-fields for 1.0, 2.0, etc. would not be set to 1). Thus, we move our "unsupported" condition after having checked each bit field. Also, it's simple enough to add a condition for ONFI revision 2.3. Note that this does *NOT* mean we handle all new features of ONFI versions above 1.0. Signed-off-by: Brian Norris <> Acked-by: Florian Fainelli <> Signed-off-by: David Woodhouse <> Signed-off-by: Florian Fainelli <>
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