[PATCH v2 1/3] ARM: dts: sun8i: Add basic dtsi file for Allwinner R40
From: icenowy@aosc.io (Icenowy Zheng)
Date: 2017-09-29 10:25:30
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? 2017?9?28? GMT+08:00 ??11:11:03, Maxime Ripard [off-list ref] ??:
Hi, On Thu, Sep 28, 2017 at 09:25:41AM +0000, Icenowy Zheng wrote:quoted
+ /* + * The max-frequency properties in all MMC controller nodes + * are conservative values proven to work on Banana Pi M2 + * Ultra (the first community available R40 board). + * As the board doesn't wire MMC3 out, the property is not + * set in MMC3. + * TODO: measure the accurate max frequency of the controllers. + */ + mmc0: mmc at 1c0f000 { + compatible = "allwinner,sun8i-r40-mmc", + "allwinner,sun50i-a64-mmc"; + reg = <0x01c0f000 0x1000>; + clocks = <&ccu CLK_BUS_MMC0>, <&ccu CLK_MMC0>; + clock-names = "ahb", "mmc"; + resets = <&ccu RST_BUS_MMC0>; + reset-names = "ahb"; + pinctrl-0 = <&mmc0_pins>; + pinctrl-names = "default"; + interrupts = <GIC_SPI 32 IRQ_TYPE_LEVEL_HIGH>; + max-frequency = <25000000>; + status = "disabled"; + #address-cells = <1>; + #size-cells = <0>; + };Sorry if it wasn't really clear, but my point was more than you should just drop the max-frequency property
Then set it in the boards' DTS?
Maxime