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2016-07-11mtd: nand: sunxi: check ecc->size valuesBoris Brezillon1-0/+3
Verify that the ecc->size value is either 512 or 1024 bytes. This should always be the case if this field was assigned to the nand->ecc_step_size_ds value, but can be wrong when the user overloaded this value with the nand-ecc-step-size DT property. Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
2016-07-11mtd: nand: sunxi: prefer 1k ECC blocks when applicableBoris Brezillon1-0/+6
Switching to 1k ECC blocks when possible provides better resistance against concentrated bitflips. Say you have those two configurations: 1/ 16bits/512bytes 2/ 32bits/1024bytes Both of them require the same amount of ECC bytes (only true for this specific engine), but the second config allows you to correct the case where most of your bitflips are concentrated in a single 512bytes portion. This fact makes the 1k ECC block size more advantageous than the 512bytes one. Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
2016-07-11mtd: nand: sunxi: Fix OOB bytes retrieval in read_chunks_dma()Boris Brezillon1-2/+4
The column address passed to the RNDOUT operation was missing the page size offset. Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com> Fixes: 614049a8d904 ("mtd: nand: sunxi: add support for DMA assisted operations")
2016-07-11mtd: mediatek: driver for MTK Smart DeviceJorge Ramirez-Ortiz5-0/+2114
Add support for mediatek's SDG1 NFC nand controller embedded in SoC 2701 Signed-off-by: Jorge Ramirez-Ortiz <jorge.ramirez-ortiz@linaro.org> Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com> Tested-by: Xiaolei Li <xiaolei.li@mediatek.com>