[U-Boot] u-boot 2018 SPI SPL

[Mehmet Ali İPİN]

Dear Fabio,
Hello,

ROM code starts execution of the SPL code in SPI flash; 

I traced and see that It jumped to MMC drivers/mmc.c file,  as default DM_MMC  is not defined, then SPL is calling empty weak "board_mmc_init and cpu_mmc_init" functions. 

I also defined DM_MMC in defconfig file, but got "undefined reference compiling errors for USB etc.

Should I call u-boot MMC init functions within these functions?
Or should I define DM_MMC in config file and try to solve compile errors?

Best regards.

-----Original Message-----
From: Fabio Estevam [mailto:festevam at gmail.com] 
Sent: Wednesday, May 2, 2018 8:27 PM
To: Mehmet Ali İPİN <mehmet.ipin at pavotek.com.tr>
Cc: u-boot at lists.denx.de; Kutsal ANIL <kutsal.anil at pavotek.com.tr>
Subject: Re: [U-Boot] u-boot 2018 SPI SPL

Hi Mehmet,

On Mon, Apr 30, 2018 at 3:24 AM, Mehmet Ali İPİN <mehmet.ipin at pavotek.com.tr> wrote:
> Dear Fabio,
>
> Windows 10 tried but could not load the device driver of our eMMC 
> (micron tech MTFC4GLDDQ). Then
>
> I programmed SPL and u-boot.img into eMMC with u-boot commands; even SPI flash based SPL see the MMC1(eMMC), u-boot did not run correctly.

I am a bit confused of what you are trying to achieve.

Is your end goal to be able to boot from SPI NOR using SPL on a mx6?

Are you able to boot from SPL from the eMMC or SD card?