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authorAntonio Borneo <borneo.antonio@gmail.com>2010-04-19 16:40:08 +0800
committerØyvind Harboe <oyvind.harboe@zylin.com>2010-05-16 13:39:47 +0200
commit89747f81f22084b255f35d92f709facd3b4553a1 (patch)
tree1e07321c3cdc94cd48d6e3deb5a1c00b6713c257 /src/flash/ocl
parentc7b269ace1bbe07d5db7a562bb9242f4be32be67 (diff)
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NOR/CFI: simplify bufferwsize computation
Review and simplify computation of bufferwsize. Add comments about variables' meaning. The same code is present 3 times in the file. Current patch updates all the 3 instances. Step 1) Replace "switch(bank->chip_width) {...}". Illegal values of bank->chip_width are already dropped. For legal values, the code is equivalent to: bufferwsize = buffersize / bank->chip_width; Step 2) The above code replacement plus the following line: bufferwsize /= (bank->bus_width / bank->chip_width); is merged in a single formula: bufferwsize = (buffersize / bank->chip_width) / (bank->bus_width / bank->chip_width); and simplified as: bufferwsize = buffersize / bank->bus_width; Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
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