arm64: dts: allwinner: a100: set maximum MMC frequency

The manual for the Allwinner A133 SoC mentions that the maximum
supported MMC frequency is 150 MHz, for all of the MMC devices.

Describe that in the DT entry, to help drivers setting the right
interface frequency.

Fixes: fcfbb8d9ec58 ("arm64: allwinner: a100: Add MMC related nodes")
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Link: https://patch.msgid.link/20250505202416.23753-1-andre.przywara@arm.com
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
[ upstream commit: d8f10550448b03d3c5c6d9392119205c65ebfc89 ]

(cherry picked from commit 85e37e6a8a002eb231df8209478d7ff2b134a451)

diff --git a/dts/upstream/src/arm64/allwinner/sun50i-a100.dtsi b/dts/upstream/src/arm64/allwinner/sun50i-a100.dtsi
index f9f6fea03b74467f4a0bd8aa8414c7481a5c83a9..bd366389b2389d6909db64628cbfd53eaa1c0b6c 100644 (file)
--- a/dts/upstream/src/arm64/allwinner/sun50i-a100.dtsi
+++ b/dts/upstream/src/arm64/allwinner/sun50i-a100.dtsi
@@ -252,6 +252,7 @@
                        interrupts = <GIC_SPI 39 IRQ_TYPE_LEVEL_HIGH>;
                        pinctrl-names = "default";
                        pinctrl-0 = <&mmc0_pins>;
+                       max-frequency = <150000000>;
                        status = "disabled";
                        #address-cells = <1>;
                        #size-cells = <0>;
@@ -267,6 +268,7 @@
                        interrupts = <GIC_SPI 40 IRQ_TYPE_LEVEL_HIGH>;
                        pinctrl-names = "default";
                        pinctrl-0 = <&mmc1_pins>;
+                       max-frequency = <150000000>;
                        status = "disabled";
                        #address-cells = <1>;
                        #size-cells = <0>;
@@ -282,6 +284,7 @@
                        interrupts = <GIC_SPI 41 IRQ_TYPE_LEVEL_HIGH>;
                        pinctrl-names = "default";
                        pinctrl-0 = <&mmc2_pins>;
+                       max-frequency = <150000000>;
                        status = "disabled";
                        #address-cells = <1>;
                        #size-cells = <0>;