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Question about uboot on L138 LCDK etc.

Robert W
Mastermind 7100 points

Hi,

I want my L138 LCDK board run both the kernel and NFS on host PC. Now, the boot switch (1:4) is OFF:ON:ON:ON. It is in NAND boot now, right?

From the on line web pages, it gives me the impression that generally LCDK boot from NAND (For SD boot, user does that with some procedures. And I have tried the SD memory coming with the LCDK kit cannot boot after I set boot switch (1:4) is OFF:OFF:OFF:ON. This original SD memory content is damaged? I don't know yet.)

I need to run syslink. When I try to build syslink.ko, it tells me that the kernel should be built. When I build the kernel, the following on line message tells me to build uboot too.

Preparing your Environment

    1. If you have not already done so, install the Code Sourcery toolchain on your Linux host. Visit toolchain to download Code Sourcery toolchain.
    2. If U-Boot is not built yet, build U-Boot first, as building Linux Kernel requires mkimage utility, which gets built along with U-Boot. Refer to Rebuilding U-Boot for steps to build U-Boot. Once built, mkimage will be present under the tools folder of U-Boot source (/home/<user>/OMAP_L138_arm_x_xx_xx_xx/DaVinci-PSP-SDK-xx.xx.xx.xx/src/u-boot/uboot-xx.xx.xx.xx/tools). Ensure that this path is added to the $PATH variable by adding the following
host$ export PATH=home/<user>/OMAP_L138_arm_x_xx_xx_xx/DaVinci-PSP-SDK-xx.xx.xx.xx/src/u-boot/uboot-xx.xx.xx.xx/tools:$PATH


I have built the uboot, but I don't know what use for it. I don't know that I can write the uboot to a SD memory (not the original one of course), or I must write it to the on board NAND flash? Or, simply do not need to write to either.

Thanks,