[openwrt/openwrt] mediatek: filogic: disable eMMC HS400 mode for Mount Stuart series

[LEDE Commits]

dangole pushed a commit to openwrt/openwrt.git, branch main:
https://git.openwrt.org/22258443921c59d25da741266cbac583a7402714

commit 22258443921c59d25da741266cbac583a7402714
Author: Chad Monroe <chad at monroe.io>
AuthorDate: Mon Jul 15 10:37:55 2024 -0700

    mediatek: filogic: disable eMMC HS400 mode for Mount Stuart series
    
    The eMMC chip used in a small batch of these devices has issues operating
    in HS400 mode. Reducing to HS200 mode works around the problem and does
    not cause any noticeable performance penalties as smaller chips are not fast
    enough to saturate the bus. Root cause analysis is pending.
    
    Signed-off-by: Chad Monroe <chad at monroe.io>
---
 target/linux/mediatek/dts/mt7988a-smartrg-mt-stuart.dtsi | 2 --
 1 file changed, 2 deletions(-)

diff --git a/target/linux/mediatek/dts/mt7988a-smartrg-mt-stuart.dtsi b/target/linux/mediatek/dts/mt7988a-smartrg-mt-stuart.dtsi
index 2b468f9bb3..fac267abf4 100644
--- a/target/linux/mediatek/dts/mt7988a-smartrg-mt-stuart.dtsi
+++ b/target/linux/mediatek/dts/mt7988a-smartrg-mt-stuart.dtsi
@@ -481,8 +481,6 @@
 	max-frequency = <200000000>;
 	cap-mmc-highspeed;
 	mmc-hs200-1_8v;
-	mmc-hs400-1_8v;
-	hs400-ds-delay = <0x12814>;
 	vmmc-supply = <&reg_3p3v>;
 	vqmmc-supply = <&reg_1p8v>;
 	non-removable;