[openwrt/openwrt] ramips: improve support for HiWiFi HC5861 SDHC

[LEDE Commits]

nick pushed a commit to openwrt/openwrt.git, branch main:
https://git.openwrt.org/238aa35c49a4c52909cdda31ee9bbf0133155c17

commit 238aa35c49a4c52909cdda31ee9bbf0133155c17
Author: Shiji Yang <yangshiji66 at qq.com>
AuthorDate: Wed Jul 10 01:26:52 2024 +0800

    ramips: improve support for HiWiFi HC5861 SDHC
    
    1. Override max clock frequency to a stable value 24 MHz.
    2. Use voltage regulator to control the power supply.
    
    Signed-off-by: Shiji Yang <yangshiji66 at qq.com>
---
 target/linux/ramips/dts/mt7620a_hiwifi_hc5861.dts | 16 ++++++++++------
 1 file changed, 10 insertions(+), 6 deletions(-)

diff --git a/target/linux/ramips/dts/mt7620a_hiwifi_hc5861.dts b/target/linux/ramips/dts/mt7620a_hiwifi_hc5861.dts
index 83e5698d63..29aff9958a 100644
--- a/target/linux/ramips/dts/mt7620a_hiwifi_hc5861.dts
+++ b/target/linux/ramips/dts/mt7620a_hiwifi_hc5861.dts
@@ -51,12 +51,6 @@
 			gpio-export,output = <0>;
 			gpios = <&gpio0 13 GPIO_ACTIVE_LOW>;
 		};
-
-		sdpower {
-			gpio-export,name = "sdpower";
-			gpio-export,output = <0>;
-			gpios = <&gpio0 8 GPIO_ACTIVE_LOW>;
-		};
 	};
 };
 
@@ -94,6 +88,12 @@
 	mediatek,ephy-base = /bits/ 8 <12>;
 };
 
+&mmc_reg_3v3 {
+	/delete-property/ enable-active-high;
+
+	gpios = <&gpio0 8 GPIO_ACTIVE_LOW>;
+};
+
 &pcie {
 	status = "okay";
 };
@@ -108,6 +108,10 @@
 	};
 };
 
+&sdhci {
+	max-frequency = <24000000>;
+};
+
 &wmac {
 	pinctrl-names = "default", "pa_gpio";
 	pinctrl-0 = <&pa_pins>;