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From:   Xiangsheng Hou <xiangsheng.hou@mediatek.com>
To:     Miquel Raynal <miquel.raynal@bootlin.com>,
        Richard Weinberger <richard@nod.at>,
        Vignesh Raghavendra <vigneshr@ti.com>,
        Rob Herring <robh+dt@kernel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
        Matthias Brugger <matthias.bgg@gmail.com>,
        Mark Brown <broonie@kernel.org>,
        Chuanhong Guo <gch981213@gmail.com>
CC:     Xiangsheng Hou <xiangsheng.hou@mediatek.com>,
        <linux-mtd@lists.infradead.org>, <devicetree@vger.kernel.org>,
        <linux-arm-kernel@lists.infradead.org>,
        <linux-mediatek@lists.infradead.org>,
        <linux-kernel@vger.kernel.org>, <linux-spi@vger.kernel.org>,
        <benliang.zhao@mediatek.com>, <bin.zhang@mediatek.com>
Subject: [PATCH v2 4/9] mtd: nand: ecc-mtk: Add ECC support fot MT7986 IC
Date:   Mon, 5 Dec 2022 14:57:51 +0800
Message-ID: <20221205065756.26875-5-xiangsheng.hou@mediatek.com>
In-Reply-To: <20221205065756.26875-1-xiangsheng.hou@mediatek.com>
References: <20221205065756.26875-1-xiangsheng.hou@mediatek.com>
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Add ECC support fot MT7986 IC.

Signed-off-by: Xiangsheng Hou <xiangsheng.hou@mediatek.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