Opened 21 months ago

#22389 new defect

MT7620 SDHCI issue

Reported by: anonymous Owned by: developers
Priority: normal Milestone:
Component: kernel Version: Chaos Calmer 15.05
Keywords: sdhci, mt7620 Cc:


Hello all,
Recently I received a router board with MT7620 chip on board.This board is not an officially listed board but it supports openwrt and pretty much everything works.But now I need to activate the SDHCI interface.For this,I have added the following things via the menuconfig of openwrt chaos calmer source


and the sdhci part of mt7620.dtsi looks like this
sdhci@10130000 {

compatible = "ralink,mt7620a-sdhci";
reg = <0x10130000 4000>;
interrupt-parent = <&intc>;
interrupts = <14>;
status = "disabled";


and my custom made dts(actually copied and modified xiaomi miwifi mini dts file) file has the following line in it
sdhci@10130000 {

status = "okay";


and during boot,I see this message
[ 7.920000] MTK MSDC device init.
[ 7.920000] mtk-sd: MediaTek MT6575 MSDC Driver
[ 7.930000] sdhci: Secure Digital Host Controller Interface driver
[ 7.940000] sdhci: Copyright(c) Pierre Ossman
[ 7.940000] sdhci-pltfm: SDHCI platform and OF driver helper
but when I insert an sd card,nothing happens.No debug message,no mounted mmcblk

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