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mtd: nand: ecc-mtk: Add ECC support fot MT7986 IC

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Add ECC support fot MT7986 IC, and change err_mask value with
GENMASK macro.

Signed-off-by: Xiangsheng Hou <xiangsheng.hou@mediatek.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Reviewed-by: Matthias Brugger <matthias.bgg@gmail.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20230201021500.26769-6-xiangsheng.hou@mediatek.com
This commit is contained in:
Xiangsheng Hou 2023-02-01 10:15:00 +08:00 committed by Miquel Raynal
parent 70d3cf76f9
commit 4d21176f48
1 changed files with 25 additions and 3 deletions
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28
drivers/mtd/nand/ecc-mtk.c
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@ -40,6 +40,10 @@
#define ECC_IDLE_REG(op) ((op) == ECC_ENCODE ? ECC_ENCIDLE : ECC_DECIDLE)
#define ECC_CTL_REG(op) ((op) == ECC_ENCODE ? ECC_ENCCON : ECC_DECCON)
#define ECC_ERRMASK_MT7622 GENMASK(4, 0)
#define ECC_ERRMASK_MT2701 GENMASK(5, 0)
#define ECC_ERRMASK_MT2712 GENMASK(6, 0)
struct mtk_ecc_caps {
u32 err_mask;
u32 err_shift;
@ -79,6 +83,10 @@ static const u8 ecc_strength_mt7622[] = {
4, 6, 8, 10, 12
};
static const u8 ecc_strength_mt7986[] = {
4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24
};
enum mtk_ecc_regs {
ECC_ENCPAR00,
ECC_ENCIRQ_EN,
@ -451,7 +459,7 @@ unsigned int mtk_ecc_get_parity_bits(struct mtk_ecc *ecc)
EXPORT_SYMBOL(mtk_ecc_get_parity_bits);
static const struct mtk_ecc_caps mtk_ecc_caps_mt2701 = {
.err_mask = 0x3f,
.err_mask = ECC_ERRMASK_MT2701,
.err_shift = 8,
.ecc_strength = ecc_strength_mt2701,
.ecc_regs = mt2701_ecc_regs,
@ -462,7 +470,7 @@ static const struct mtk_ecc_caps mtk_ecc_caps_mt2701 = {
};
static const struct mtk_ecc_caps mtk_ecc_caps_mt2712 = {
.err_mask = 0x7f,
.err_mask = ECC_ERRMASK_MT2712,
.err_shift = 8,
.ecc_strength = ecc_strength_mt2712,
.ecc_regs = mt2712_ecc_regs,
@ -473,7 +481,7 @@ static const struct mtk_ecc_caps mtk_ecc_caps_mt2712 = {
};
static const struct mtk_ecc_caps mtk_ecc_caps_mt7622 = {
.err_mask = 0x1f,
.err_mask = ECC_ERRMASK_MT7622,
.err_shift = 5,
.ecc_strength = ecc_strength_mt7622,
.ecc_regs = mt7622_ecc_regs,
@ -483,6 +491,17 @@ static const struct mtk_ecc_caps mtk_ecc_caps_mt7622 = {
.pg_irq_sel = 0,
};
static const struct mtk_ecc_caps mtk_ecc_caps_mt7986 = {
.err_mask = ECC_ERRMASK_MT7622,
.err_shift = 8,
.ecc_strength = ecc_strength_mt7986,
.ecc_regs = mt2712_ecc_regs,
.num_ecc_strength = 11,
.ecc_mode_shift = 5,
.parity_bits = 14,
.pg_irq_sel = 1,
};
static const struct of_device_id mtk_ecc_dt_match[] = {
{
.compatible = "mediatek,mt2701-ecc",
@ -493,6 +512,9 @@ static const struct of_device_id mtk_ecc_dt_match[] = {
}, {
.compatible = "mediatek,mt7622-ecc",
.data = &mtk_ecc_caps_mt7622,
}, {
.compatible = "mediatek,mt7986-ecc",
.data = &mtk_ecc_caps_mt7986,
},
{},
};