Hi Reyhaneh,
On Fri, Jul 05, 2019 at 02:04:08PM +0000, Yazdani, Reyhaneh wrote:
> Hello everyone,
>
> I have brought up Barebox on imx8mm-evk board. Barebox is programmed on SD-card.
> In the Barebox console, when I probe eMMC, I will receive I/O error.
>
> Therefore, similar to the imx8mq device tree, I added clk node to assign
> clock-parent and clock-rates of the assigned clock of the eMMC (usdhc3):
>
> &clk {
> assigned-clocks = <&clk IMX8MM_CLK_USDHC3_ROOT>;
> assigned-clock-parents = <&clk IMX8MM_SYS_PLL1_400M>;
> assigned-clock-rates = <200000000>;
> };
>
> Now, eMMC probe works and eMMC is detected. But when I want to boot from eMMC,
>
> Loading ARM aarch64 Linux image '/mnt/mmc2/Image' takes about 13-14 seconds!!
How big is this image?
Is only the eMMC card so slow or the SD card aswell?
Does clk_dump give you any clue which clock rate the usdhc controller
actually has (and is it the same as the other controller with the SD
card)?
Just some questions, I am not very familiar with the i.MX8 clock tree.
Sascha
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