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MT2712 NAND FLASH Controller is similar to MT2701 except those following:
(1) MT2712 supports up to 148B spare size per 1KB size sector (the same
with 74B spare size per 512B size sector). There are three new spare
format: 61, 67, 74.
(2) MT2712 supports up to 80 bit ecc strength. There are three new ecc
strength level: 68, 72, 80.
(3) MT2712 ECC encode parity data register's start offset is 0x300, and
different with 0x10 of MT2701.
(4) MT2712 improves ecc irq function. When ECC works in ECC_NFI_MODE,
MT2701 will generate ecc irq number the same with ecc steps during
page read. However, MT2712 can only generate one ecc irq.
Changes of this patch are:
(1) add two new variables named pg_irq_sel, encode_parity_reg0 in struct
mtk_ecc_caps.
(2) add new bitfield ECC_PG_IRQ_SEL for register ECC_IRQ_REG.
(3) add ecc strength array of mt2712.
(4) add spare size array of mt2712.
(5) add mt2712 nfc and ecc device compatiable and data.
Signed-off-by: Xiaolei Li <xiaolei.li@mediatek.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
30ee809e98