Commit 28ae8a98 authored May 11, 2022 by Peter Geis Committed by Heiko Stuebner Jun 07, 2022

arm64: dts: rockchip: enable sdr-104 for sdmmc on Quartz A



Now that we have working io-domain support, we can enable higher date
rates on the sdmmc card.

Before:
Timing buffered disk reads:  68 MB in  3.08 seconds =  22.07 MB/sec

After:
Timing buffered disk reads: 188 MB in  3.02 seconds =  62.29 MB/sec

Signed-off-by: Peter Geis <pgwipeout@gmail.com>
Link: https://lore.kernel.org/r/20220511150117.113070-6-pgwipeout@gmail.com


Signed-off-by: Heiko Stuebner <heiko@sntech.de>

parent fb4f915c

arch/arm64/boot/dts/rockchip/rk3566-quartz64-a.dts

+1 −0

Original line number	Original line	Diff line number	Diff line
	@@ -596,6 +596,7 @@
	disable-wp;		disable-wp;
	pinctrl-names = "default";		pinctrl-names = "default";
	pinctrl-0 = <&sdmmc0_bus4 &sdmmc0_clk &sdmmc0_cmd &sdmmc0_det>;		pinctrl-0 = <&sdmmc0_bus4 &sdmmc0_clk &sdmmc0_cmd &sdmmc0_det>;
			sd-uhs-sdr104;
	vmmc-supply = <&vcc3v3_sd>;		vmmc-supply = <&vcc3v3_sd>;
	vqmmc-supply = <&vccio_sd>;		vqmmc-supply = <&vccio_sd>;
	status = "okay";		status = "okay";