diff --git a/target/linux/mediatek/patches-5.4/999-2300-mtk-sd-add-mt7986-support.patch b/target/linux/mediatek/patches-5.4/999-2300-mtk-sd-add-mt7986-support.patch
new file mode 100644
index 0000000..5a36ab0
--- /dev/null
+++ b/target/linux/mediatek/patches-5.4/999-2300-mtk-sd-add-mt7986-support.patch
@@ -0,0 +1,43 @@
+From b4ad228b3e415f980932a2200d93b56f135e6bc8 Mon Sep 17 00:00:00 2001
+From: Sam Shih <sam.shih@mediatek.com>
+Date: Fri, 2 Jun 2023 13:06:09 +0800
+Subject: [PATCH] [spi-and-storage][999-2300-mtk-sd-add-mt7986-support.patch]
+
+---
+ drivers/mmc/host/mtk-sd.c | 13 +++++++++++++
+ 1 file changed, 13 insertions(+)
+
+diff --git a/drivers/mmc/host/mtk-sd.c b/drivers/mmc/host/mtk-sd.c
+index 1254a5650..b25e8567f 100644
+--- a/drivers/mmc/host/mtk-sd.c
++++ b/drivers/mmc/host/mtk-sd.c
+@@ -508,6 +508,18 @@ static const struct mtk_mmc_compatible mt7622_compat = {
+ 	.support_64g = false,
+ };
+ 
++static const struct mtk_mmc_compatible mt7986_compat = {
++	.clk_div_bits = 12,
++	.hs400_tune = false,
++	.pad_tune_reg = MSDC_PAD_TUNE0,
++	.async_fifo = true,
++	.data_tune = true,
++	.busy_check = true,
++	.stop_clk_fix = true,
++	.enhance_rx = true,
++	.support_64g = true,
++};
++
+ static const struct mtk_mmc_compatible mt8516_compat = {
+ 	.clk_div_bits = 12,
+ 	.hs400_tune = false,
+@@ -537,6 +549,7 @@ static const struct of_device_id msdc_of_ids[] = {
+ 	{ .compatible = "mediatek,mt2701-mmc", .data = &mt2701_compat},
+ 	{ .compatible = "mediatek,mt2712-mmc", .data = &mt2712_compat},
+ 	{ .compatible = "mediatek,mt7622-mmc", .data = &mt7622_compat},
++	{ .compatible = "mediatek,mt7986-mmc", .data = &mt7986_compat},
+ 	{ .compatible = "mediatek,mt8516-mmc", .data = &mt8516_compat},
+ 	{ .compatible = "mediatek,mt7620-mmc", .data = &mt7620_compat},
+ 	{}
+-- 
+2.34.1
+