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Message-ID: <20221128020613.14821-5-xiangsheng.hou@mediatek.com>
Date:   Mon, 28 Nov 2022 10:06:08 +0800
From:   Xiangsheng Hou <xiangsheng.hou@...iatek.com>
To:     Miquel Raynal <miquel.raynal@...tlin.com>,
        Richard Weinberger <richard@....at>,
        Vignesh Raghavendra <vigneshr@...com>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Mark Brown <broonie@...nel.org>,
        Chuanhong Guo <gch981213@...il.com>
CC:     Xiangsheng Hou <xiangsheng.hou@...iatek.com>,
        <linux-mtd@...ts.infradead.org>, <devicetree@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-mediatek@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>, <linux-spi@...r.kernel.org>,
        <benliang.zhao@...iatek.com>, <bin.zhang@...iatek.com>
Subject: [PATCH 4/9] mtd: nand: ecc-mtk: add ecc support fot mt7986 IC

add ecc support fot mt7986 IC

Signed-off-by: Xiangsheng Hou <xiangsheng.hou@...iatek.com>
---
 drivers/mtd/nand/ecc-mtk.c | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/drivers/mtd/nand/ecc-mtk.c b/drivers/mtd/nand/ecc-mtk.c
index 9f9b201fe706..c2f6cfa76a04 100644
--- a/drivers/mtd/nand/ecc-mtk.c
+++ b/drivers/mtd/nand/ecc-mtk.c
@@ -79,6 +79,10 @@ 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,
@@ -483,6 +487,17 @@ 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 = 0x1f,
+	.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 +508,9 @@ 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,
 	},
 	{},
 };
-- 
2.25.1

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