Throughput & CPU usage of WiFi download

[Marc Gonzalez]

On 04/04/2023 14:54, Marc Gonzalez wrote:

> 2) SDIO is clocked higher on vendor system, but could
> lead to instabilities on some boards?

Apparently, I remembered wrong.

For mainline, arch/arm64/boot/dts/amlogic/meson-g12a-sei510.dts

	bus-width = <4>;
	cap-sd-highspeed;
	sd-uhs-sdr50;
	max-frequency = <100000000>;

For vendor, common/arch/arm64/boot/dts/amlogic/mesong12a_sei.dtsi

		bus-width = <4>;
		cap-sd-highspeed;
		cap-mmc-highspeed;
		max-frequency = <100000000>;

The vendor DTS has the following child node:

		sdio {
			pinname = "sdio";
			ocr_avail = <0x200080>; /**VDD voltage 3.3 ~ 3.4 */
			/* max_req_size = <0x20000>; */ /**128KB*/
			max_req_size = <0x400>;
			card_type = <3>;
			/* 3:sdio device(ie:sdio-wifi),
			 * 4:SD combo (IO+mem) card
			 */
			dmode = "pio";
		};


Thus, it seems that the performance delta comes from driver architecture
and different HW setup, rather than clock difference.

Regards