This is the message I am getting after booting my custom u-boot and kernel from SD card.
U-Boot SPL 2016.07-00224-g62a3b7d (Jul 16 2016 - 23:35:47)
Trying to boot from MMC1
MMC partition switch failed
*** Warning - MMC partition switch failed, using default environment
reading u-boot.img
reading u-boot.img
U-Boot 2016.07-00224-g62a3b7d (Jul 16 2016 - 23:35:47 +0530)
I2C: ready
DRAM: 512 MiB
MMC: OMAP SD/MMC: 0, OMAP SD/MMC: 1
*** Warning - bad CRC, using default environment
Net: not set. Validating first E-fuse MAC
cpsw, usb_ether
Press SPACE to abort autoboot in 2 seconds
switch to partitions #0, OK
mmc0 is current device
SD/MMC found on device 0
reading boot.scr
** Unable to read file boot.scr **
reading uEnv.txt
313 bytes read in 4 ms (76.2 KiB/s)
Loaded env from uEnv.txt
Importing environment from mmc0 …
Running uenvcmd …
Booting from network …
cpsw Waiting for PHY auto negotiation to complete… TIMEOUT !
BOOTP broadcast 1
CACHE: Misaligned operation at range [9ffed780, 9ffed8d6]
BOOTP broadcast 2
CACHE: Misaligned operation at range [9ffed780, 9ffed8d6]
BOOTP broadcast 3
CACHE: Misaligned operation at range [9ffed780, 9ffed8d6]
BOOTP broadcast 4
CACHE: Misaligned operation at range [9ffed780, 9ffed8d6]
BOOTP broadcast 5
CACHE: Misaligned operation at range [9ffed780, 9ffed8d6]