linux-kernel - Re: [PATCH v2 8/8] arm64: dts: rockchip: Enable SD-card interface on Radxa E20C

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Message-Id: <20250307071020.756277-1-amadeus@jmu.edu.cn>
Date: Fri,  7 Mar 2025 15:10:20 +0800
From: Chukun Pan <amadeus@....edu.cn>
To: jonas@...boo.se
Cc: amadeus@....edu.cn,
	conor+dt@...nel.org,
	cristian.ciocaltea@...labora.com,
	detlev.casanova@...labora.com,
	devicetree@...r.kernel.org,
	heiko@...ech.de,
	krzk+dt@...nel.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-clk@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	linux-rockchip@...ts.infradead.org,
	ziyao@...root.org
Subject: Re: [PATCH v2 8/8] arm64: dts: rockchip: Enable SD-card interface on Radxa E20C

Hi,

> On the E20C the sdmmc controller is routed to a microSD card slot mainly
> intended for use with microSD-cards and should normally not need SDIO.
> 
> What card/adapter do you have inserted in the microSD card slot that
> requires use of SDIO instead of just SD or MMC? What is the use case you
> have that requires removal of no-sdio on E20C?

I inserted an sdio wifi module (via sdcard adapter) for testing.
Just out of curiosity :)

Thanks,
Chukun

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