https://github.com/RobertCNelson/Bootloader-Builder/blob/master/patches/v2014.07-rc4/0001-am335x_evm-uEnv.txt-bootz-n-fixes.patch
https://rcn-ee.net/deb/tools/am335x_evm/MLO-am335x_evm-v2014.07-rc4-r16
https://rcn-ee.net/deb/tools/am335x_evm/u-boot-am335x_evm-v2014.07-rc4-r16.img

U-Boot 2014.07-rc4-00014-g923fcd7 (Jul 11 2014 - 14:20:24), Build: jenkins-github_Bootloader-Builder-356

I2C:   ready
DRAM:  512 MiB
NAND:  0 MiB
MMC:   OMAP SD/MMC: 0, OMAP SD/MMC: 1
*** Warning - readenv() failed, using default environment

Net:   <ethaddr> not set. Validating first E-fuse MAC
cpsw, usb_ether
Hit any key to stop autoboot:  0
gpio: pin 53 (gpio 53) value is 1
Card did not respond to voltage select!
Card did not respond to voltage select!
gpio: pin 56 (gpio 56) value is 0
gpio: pin 55 (gpio 55) value is 0
gpio: pin 54 (gpio 54) value is 0
switch to partitions #0, OK
mmc1(part 0) is current device
gpio: pin 54 (gpio 54) value is 1
SD/MMC found on device 1
Checking for: /uEnv.txt ...
Checking for: /boot.scr ...
Checking for: /boot/boot.scr ...
Checking for: /boot/uEnv.txt ...
gpio: pin 55 (gpio 55) value is 1
790 bytes read in 22 ms (34.2 KiB/s)
Loaded environment from /boot/uEnv.txt
Checking if uname_r is set in /boot/uEnv.txt...
gpio: pin 56 (gpio 56) value is 1
loading /boot/vmlinuz-3.14.12-ti-r2 ...
6190744 bytes read in 394 ms (15 MiB/s)
loading /boot/dtbs/3.14.12-ti-r2/am335x-boneblack.dtb ...
28887 bytes read in 47 ms (599.6 KiB/s)
loading /boot/initrd.img-3.14.12-ti-r2 ...
1348182 bytes read in 115 ms (11.2 MiB/s)
Kernel image @ 0x82000000 [ 0x000000 - 0x5e7698 ]
## Flattened Device Tree blob at 88000000
   Booting using the fdt blob at 0x88000000
   Loading Ramdisk to 8feb6000, end 8ffff256 ... OK
   Loading Device Tree to 8feab000, end 8feb50d6 ... OK

Starting kernel ...