Unable to get IP with DHCP, Static IP doesn't work, TFTP times out

[alir...@gmail.com]

Hello

I'm just starting with beaglebone and I am trying to experiment with Uboot networking to get TFTP going.

When I get to UBoot prompt and run dhcp, it keeps broadcasting and once it hits 10th broadcast it restarts without getting an IP address:

link up on port 0, speed 100, full duplex

BOOTP broadcast 1

BOOTP broadcast 2

BOOTP broadcast 3

BOOTP broadcast 4

BOOTP broadcast 5

BOOTP broadcast 6

BOOTP broadcast 7

BOOTP broadcast 8

BOOTP broadcast 9

BOOTP broadcast 10

Retry count exceeded; starting again

link up on port 0, speed 100, full duplex

BOOTP broadcast 1

BOOTP broadcast 2

BOOTP broadcast 3

BOOTP broadcast 4

BOOTP broadcast 5

BOOTP broadcast 6

BOOTP broadcast 7

BOOTP broadcast 8

BOOTP broadcast 9

BOOTP broadcast 10

Retry count exceeded; starting again

...

here is output of printenv:

U-Boot# printenv

autoload=no

baudrate=115200

bootargs_defaults=setenv bootargs console=${console} ${optargs}

bootcmd=if mmc rescan; then echo SD/MMC found on device ${mmc_dev};if run loadb;

bootdelay=1

bootenv=uEnv.txt

bootfile=uImage

console=ttyO0,115200n8

ethact=cpsw

ethaddr=d4:94:a1:39:42:45

importbootenv=echo Importing environment from mmc ...; env import -t $loadaddr e

ip_method=none

kloadaddr=0x80007fc0

loadaddr=0x82000000

loadbootenv=fatload mmc ${mmc_dev} ${loadaddr} ${bootenv}

mmc_args=run bootargs_defaults;setenv bootargs ${bootargs} root=${mmc_root} roo}

mmc_boot=run mmc_args; run mmc_load_uimage_ext4; bootm ${kloadaddr}

mmc_dev=0

mmc_load_uimage=fatload mmc ${mmc_dev}:1 ${kloadaddr} ${bootfile}

mmc_load_uimage_ext4=ext4load mmc ${mmc_dev}:2 ${kloadaddr} /boot/${bootfile}

mmc_root=/dev/mmcblk0p2 ro

mmc_root_fs_type=ext4 rootwait

nand_args=run bootargs_defaults;setenv bootargs ${bootargs} root=${nand_root} n}

nand_boot=echo Booting from nand ...; run nand_args; nandecc hw 2; nand read.i }

nand_img_siz=0x500000

nand_root=ubi0:rootfs rw ubi.mtd=7,2048

nand_root_fs_type=ubifs rootwait=1

nand_src_addr=0x280000

net_args=run bootargs_defaults;setenv bootargs ${bootargs} root=/dev/nfs nfsroop

net_boot=echo Booting from network ...; setenv autoload no; dhcp; tftp ${kloada}

netmask=255.255.254.0

nfsopts=nolock

nor_args=run bootargs_defaults;setenv bootargs ${bootargs} root={nor_root} root}

nor_boot=echo Booting from NOR ...; run nor_args; cp.b ${0x08080000} ${kloadadd}

nor_img_siz=0x280000

nor_root=/dev/mtdblock3 rw

nor_root_fs_type=jffs2

nor_src_addr=0x08080000

rootpath=/export/rootfs

script_addr=0x81900000

spi_args=run bootargs_defaults;setenv bootargs ${bootargs} root=${spi_root} roo}

spi_boot=echo Booting from spi ...; run spi_args; sf probe ${spi_bus_no}:0; sf }

spi_bus_no=0

spi_img_siz=0x380000

spi_root=/dev/mtdblock4 rw

spi_root_fs_type=jffs2

spi_src_addr=0x62000

static_ip=${ipaddr}:${serverip}:${gatewayip}:${netmask}:${hostname}::off

stderr=serial

stdin=serial

stdout=serial

Environment size: 2778/8188 bytes..

I even tried setting up static IP:

U-Boot# setenv ipaddr 192.168.168.236

U-Boot# ping 192.168.168.236

link up on port 0, speed 100, full duplex

Using cpsw device

ping failed; host 192.168.168.236 is not alive

As you can see I can't even ping myself!! 

This is the static IP address setting I am using:

192.168.168.236
Netmask:
255.255.254.0

I can't even get to using TFTP with this! It fails to even get a network address! 

The network is fine, it is not firewalled, MAC filtering is disabled, a random PC on the network immediately picks up an IP address. 

Can someone please help me understand this and help me fix it?

Thanks

[William Hermans]

$serverip and ipaddr *MUST* be set in order to boot over tftp. These are settings that let uboot know where to get the kernel from. I have never had any luck personally setting ${ipaddr}=dhcp, but in the long run I boot via network to help ease several issues when developing things for the bbb, so dhcp would not work well for me. As i need to know the ip im connecting to via ssh anyhow . . .

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[Clark]

Are you building your own U-boot?

On this website:
http://www.crashcourse.ca/wiki/index.php/U-Boot_on_the_BBB#BBB-specific_U-Boot_from_current_Git_tree

I did notice this note:
It appears that if you want to download the kernel via TFTP, you have to apply the "kloadaddr" patch from above.