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authorGuillaume LECERF <glecerf@gmail.com>2010-04-24 17:58:17 +0200
committerDavid Woodhouse <David.Woodhouse@intel.com>2010-05-14 01:33:27 +0100
commit564b84978df2bf83d334940f1a1190702579f79f (patch)
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parent58598861227877bb481b9035d2a07283577a2274 (diff)
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mtd: cfi_cmdset_0002: do not fail on no extended query table as they are both optional
After looking at AMD's CFI specification [1], both of the extended query tables are optional. Thus, it looks like relying that at least one of those tables exist is a bug in cfi_cmdset_0002. This patch inverts the logic and checks for unlock function pointers before exiting on error. This approach leaves place to add a call to a fixup function to try to handle chips compatible with the early AMD specification from 1995 [2]. [1] http://www.amd.com/us-en/assets/content_type/DownloadableAssets/cfi_r20.pdf [2] http://noel.feld.cvut.cz/hw/amd/20158a.pdf Signed-off-by: Guillaume LECERF <glecerf@gmail.com> Reviewed-by: Wolfram Sang <w.sang@pengutronix.de> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
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