u-boot failed to build

[not you]

I am following this guide to create an bootable SD card:
https://eewiki.net/display/linuxonarm/BeagleBone+Black#BeagleBoneBlack-Bootloader:U-Boot

I encounter an error here:  make ARCH=arm CROSS_COMPILE=${CC}

My terminal throws this error:
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

board/ti/am335x/mux.c:131:30: error: redefinition of ‘i2c2_pin_mux’

 static struct module_pin_mux i2c2_pin_mux[] = {

                              ^~~~~~~~~~~~

board/ti/am335x/mux.c:123:30: note: previous definition of ‘i2c2_pin_mux’ was here

 static struct module_pin_mux i2c2_pin_mux[] = {

                              ^~~~~~~~~~~~

board/ti/am335x/mux.c:328:6: error: redefinition of ‘enable_i2c2_pin_mux’

 void enable_i2c2_pin_mux(void)

      ^~~~~~~~~~~~~~~~~~~

board/ti/am335x/mux.c:323:6: note: previous definition of ‘enable_i2c2_pin_mux’ was here

 void enable_i2c2_pin_mux(void)

      ^~~~~~~~~~~~~~~~~~~

board/ti/am335x/mux.c:123:30: warning: ‘i2c2_pin_mux’ defined but not used [-Wunused-variable]

 static struct module_pin_mux i2c2_pin_mux[] = {

                              ^~~~~~~~~~~~

scripts/Makefile.build:280: recipe for target 'spl/board/ti/am335x/mux.o' failed

make[2]: *** [spl/board/ti/am335x/mux.o] Error 1

scripts/Makefile.spl:349: recipe for target 'spl/board/ti/am335x' failed

make[1]: *** [spl/board/ti/am335x] Error 2

Makefile:1394: recipe for target 'spl/u-boot-spl' failed

make: *** [spl/u-boot-spl] Error 2

------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

I have no clue why this is happening.  Please help.

[not you]

After removing the u-boot folder and follow the steps again, everything works fine.  Any idea how that error is thrown anyways?

[Jeff Andich]

Hi,

Don’t know if this is your issue but...

How are you generating the .config file? When I build u-boot for the X15, I typically do a distclean, call another make command to generate the correct .config file from the appropriate defconfig , and then throw the command to build u-boot.