mtd: nand: sunxi: fix EDO mode selection

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The ONFI spec says that EDO should be enabled if the host drives tRC less
than 30ns, but the code just tests for the tRC_min value extracted from
the timings exposed by the NAND chip not the timings actually configured
in the NAND controller.
Fix that by first rounding down the requested clk_rate with
clk_round_rate() and then checking if tRC is actually smaller than 30ns.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>

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Boris Brezillon 2015-12-02 15:57:20 +01:00

parent 2f9992e080

commit 2d43457f79

1 changed files with 11 additions and 7 deletions

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drivers/mtd/nand/sunxi_nand.c

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