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I have three question about u-boot

Hi all

I have three question about u-boot.

I used am335x-evm and I used ti-processor-sdk-linux-am335x-evm-02.00.02.11.

1.How to solve this problem? remove error message?(red block)

U-Boot SPL 2014.07-svn354 (Sep 01 2016 - 21:13:44)
reading args
spl_load_image_fat_os: error reading image args, err - -1

reading u-boot.img
reading u-boot.img

2.Can't delete  U-Boot SPL step when u-boot sequence?

U-Boot SPL 2014.07-svn354 (Sep 01 2016 - 21:13:44)
reading args
spl_load_image_fat_os: error reading image args, err - -1
reading u-boot.img
reading u-boot.img


U-Boot 2014.07-svn354 (Sep 01 2016 - 21:13:44)

I2C:   ready
DRAM:  1 GiB
NAND:  256 MiB
MMC:   OMAP SD/MMC: 0, OMAP SD/MMC: 1
reading uboot.env
read_eeprom
Net:   read_eeprom
cpsw, usb_ether

3. I want to speed up to boot time. how can I?

thank you for your replay and support.