[U-Boot] Implementing spl_start_uboot() for directly booting linux

Hello,

I am trying to directly boot the kernel i.e without u-boot, on my Xilinx Zynq based microzed board.

I understand that for that I must implement the function spl_start_uboot() in spl.c

Right now the definition is:

#ifdef CONFIG_SPL_OS_BOOT int spl_start_uboot(void) { /* boot linux */ return 0; } #endif

Given here: https://github.com/Xilinx/u-boot-xlnx/blob/2a0536fa48db1fc5332e3cd33b846d0da...

Can someone explain how to implement this function for directly booting the kernel? Actually till now all the boards I have searched have not implemented this function, So if you can provide any example board implementation , it would give me a clear picture of how to do this for my zynq board.

Thanks in advance,

Abdul Basit