[#6804] 561 u-boot fails to run save after update now

Submitted By: Mingquan Pan

Open Date

2011-09-29 22:58:17 Close Date

2013-05-16 01:13:59

Priority:

Medium Assignee:

Bob Liu

Category:

N/A Fixed In Release:

N/A

Found In Release:

2011R1 Status:

Closed

Board:

N/A Processor:

BF561

Silicon Revision:

Resolution:

Assigned (Not Start)

Is the bug repeatable?:

N/A

Summary: 561 u-boot fails to run save after update now

Details:

561 u-boot fails to run save after update now.

U-Boot 2011.06-svn2714 (ADI-2011R1-pre) (Sep 22 2011 - 09:59:27)

CPU: ADSP bf561-0.3 (Detected Rev: 0.5) (bypass boot)

Board: ADI BF561 EZ-Kit Lite board

Support: http://blackfin.uclinux.org/

Clock: VCO: 600 MHz, Core: 600 MHz, System: 100 MHz

RAM: 64 MiB

Flash: 8 MiB

*** Warning - bad CRC, using default environment

In: serial

Out: serial

Err: serial

KGDB: [on serial] ready

Net: SMC91111-0

Hit any key to stop autoboot: 0

SMC91111: MAC 00:e0:22:fe:b1:3b

Using SMC91111-0 device

TFTP from server 192.168.0.2; our IP address is 192.168.0.15

Filename 'uImage'.

Load address: 0x1000000

Loading: T T

Abort

bfin> set ipaddr 10.100.4.50

bfin> set serverip 10.100.4.174

bfin> ping 10.100.4.174

SMC91111: MAC 00:e0:22:fe:b1:3b

Using SMC91111-0 device

host 10.100.4.174 is alive

bfin> run update

SMC91111: MAC 00:e0:22:fe:b1:3b

Using SMC91111-0 device

TFTP from server 10.100.4.174; our IP address is 10.100.4.50

Filename 'u-boot.bin'.

Load address: 0x1000000

Loading: ###########

done

Bytes transferred = 155740 (2605c hex)

Ack! Something bad happened to the Blackfin!

SEQUENCER STATUS:

SEQSTAT: 00000021 IPEND: 0032 SYSCFG: b31fd1b

HWERRCAUSE: 0x0: undef

EXCAUSE : 0x21: undef inst

RETE: <0xbb85140d> { ___umulsi3_highpart + 0xb7877399 }

RETN: <0x03f9e598> /* unknown address */

RETX: <0x03fc441c> { _do_protect + 0x0 }

RETS: <0x03fcadb8> { _run_command + 0x27c }

RETI: <0x03fc00e2> { _start + 0xe2 }

DCPLB_FAULT_ADDR: <0x03f9f218> /* unknown address */

ICPLB_FAULT_ADDR: <0x03fc441c> { _do_protect + 0x0 }

PROCESSOR STATE:

R0 : 03fe5b98 R1 : 00000000 R2 : 00000004 R3 : b6db6db7

R4 : 00000000 R5 : 00000000 R6 : 000003e3 R7 : 00000004

P0 : 03f9f1c0 P1 : 03f9f1b0 P2 : 03fc441c P3 : 03f9ffb0

P4 : 03f9e9cd P5 : 03fe5b98 FP : 03f9ede8 SP : ffb00f18

LB0: 03fd9ffc LT0: 03fd9ffc LC0: 00000000

LB1: 03fd15c4 LT1: 03fd15be LC1: 00000000

B0 : 03ff349c L0 : 00000000 M0 : b7e42bdc I0 : 03fdaa7c

B1 : f6d887af L1 : 00000000 M1 : e0cfa498 I1 : 00000000

B2 : fede6399 L2 : 00000000 M2 : dee1e5ad I2 : 0000000f

B3 : f6fcc06a L3 : 00000000 M3 : b626a8e0 I3 : 0000001b

A0.w: 000000c7 A0.x: 00000000 A1.w: 000000c7 A1.x: 00000000

USP : d4117988 ASTAT: 02001045

Hardware Trace:

0 Target : <0x03fc162c> { _trap_c + 0x0 }

Source : <0x03fc0330> { _trap + 0x6c }

1 Target : <0x03fc02c4> { _trap + 0x0 }

Source : <0x03fcadb6> { _run_command + 0x27a }

2 Target : <0x03fcada6> { _run_command + 0x26a }

Source : <0x03fcad84> { _run_command + 0x248 }

3 Target : <0x03fcad78> { _run_command + 0x23c }

Source : <0x03fcad6c> { _run_command + 0x230 }

4 Target : <0x03fcad66> { _run_command + 0x22a }

Source : <0x03fcad52> { _run_command + 0x216 }

5 Target : <0x03fcad4e> { _run_command + 0x212 }

Source : <0x03fc82c2> { _find_cmd_tbl + 0x6a }

6 Target : <0x03fc82ba> { _find_cmd_tbl + 0x62 }

Source : <0x03fc82a4> { _find_cmd_tbl + 0x4c }

7 Target : <0x03fc82a2> { _find_cmd_tbl + 0x4a }

Source : <0x03fd1ca0> { _strlen + 0x18 }

8 Target : <0x03fd1c94> { _strlen + 0xc }

Source : <0x03fd1c9a> { _strlen + 0x12 }

9 Target : <0x03fd1c94> { _strlen + 0xc }

Source : <0x03fd1c9a> { _strlen + 0x12 }

10 Target : <0x03fd1c94> { _strlen + 0xc }

Source : <0x03fd1c9a> { _strlen + 0x12 }

11 Target : <0x03fd1c94> { _strlen + 0xc }

Source : <0x03fd1c9a> { _strlen + 0x12 }

12 Target : <0x03fd1c94> { _strlen + 0xc }

Source : <0x03fd1c9a> { _strlen + 0x12 }

13 Target : <0x03fd1c94> { _strlen + 0xc }

Source : <0x03fd1c9a> { _strlen + 0x12 }

14 Target : <0x03fd1c88> { _strlen + 0x0 }

Source : <0x03fc829e> { _find_cmd_tbl + 0x46 }

15 Target : <0x03fc8298> { _find_cmd_tbl + 0x40 }

Source : <0x03fc28d6> { _strncmp + 0x26 }

kgdb: handle_exception; trap [0x4]

$T0435:1c44fc03;0e:c4e4f903;#f9$T0435:1c44fc03;0e:c4e4f903;#f9

U-Boot 2011.06-svn2714 (ADI-2011R1-pre) (Sep 22 2011 - 09:59:27)

CPU: ADSP bf561-0.3 (Detected Rev: 0.5) (bypass boot)

Board: ADI BF561 EZ-Kit Lite board

Support: http://blackfin.uclinux.org/

Clock: VCO: 600 MHz, Core: 600 MHz, System: 100 MHz

RAM: 64 MiB

Flash: 8 MiB

*** Warning - bad CRC, using default environment

while uboot revision 2710 is still good.

U-Boot 2011.06-svn2710 (ADI-2011R1-pre) (Sep 03 2011 - 15:55:34)

CPU: ADSP bf561-0.3 (Detected Rev: 0.5) (bypass boot)

Board: ADI BF561 EZ-Kit Lite board

Support: http://blackfin.uclinux.org/

Clock: VCO: 600 MHz, Core: 600 MHz, System: 100 MHz

RAM: 64 MiB

Flash: 8 MiB

*** Warning - bad CRC, using default environment

In: serial

Out: serial

Err: serial

KGDB: [on serial] ready

Net: SMC91111-0

Hit any key to stop autoboot: 0

bfin> print

addip=set bootargs $(bootargs) ip=$(ipaddr):$(serverip):$(gatewayip):$(netmask):$(hostname):eth0:off

autoload=no

baudrate=57600

bootargs=root=/dev/mtdblock0 rw clkin_hz=30000000 earlyprintk=serial,uart0,57600 console=ttyBF0,57600

bootcmd=run ramboot

bootdelay=5

ethact=SMC91111-0

flashboot=bootm 0x20100000

gatewayip=192.168.0.1

hostname=bf561-ezkit

ipaddr=192.168.0.15

loadaddr=0x1000000

loads_echo=1

netmask=255.255.255.0

nfsargs=set bootargs root=/dev/nfs rw nfsroot=$(serverip):$(rootpath),tcp,nfsvers=3

nfsboot=tftp $(loadaddr) $(nfsfile);run nfsargs;run addip;bootm

nfsfile=vmImage

ramargs=set bootargs root=/dev/mtdblock0 rw clkin_hz=30000000 earlyprintk=serial,uart0,57600 console=ttyBF0,57600

ramboot=tftp $(loadaddr) $(ramfile);run ramargs;run addip;bootm

ramfile=uImage

rootpath=/romfs

serverip=192.168.0.2

stderr=serial

stdin=serial

stdout=serial

ubootfile=u-boot.bin

update=tftp $(loadaddr) $(ubootfile);protect off 0x20000000 +$(filesize);erase 0x20000000 +$(filesize);cp.b $(loadaddr) 0x20000000 $(filesize)

Environment size: 1078/8188 bytes

bfin> set ipaddr 10.100.4.50

bfin> set serverip 10.100.4.174

bfin> save

Saving Environment to Flash...

Un-Protected 1 sectors

Erasing Flash...

. done

Erased 1 sectors

Writing to Flash... 9....8....7....6....5....4....3....2....1....done

Protected 1 sectors

bfin> print

Follow-ups

--- Mingquan Pan 2011-09-29 23:15:40

It looks this issue doesn't happen always and may due to previous checkins.

--- Mingquan Pan 2011-10-14 02:22:27

It turns out that uboot on bf561 fails to remember things after reset. it would

have Warning - bad CRC, using default environment.

U-Boot 2011.06-svn2704 (ADI-2011R1-pre) (Jul 11 2011 - 18:45:13)

CPU: ADSP bf561-0.5 (Detected Rev: 0.5) (bypass boot)

Board: ADI BF561 EZ-Kit Lite board

Support: http://blackfin.uclinux.org/

Clock: VCO: 600 MHz, Core: 600 MHz, System: 100 MHz

RAM: 64 MiB

Flash: 8 MiB

In: serial

Out: serial

Err: serial

KGDB: [on serial] ready

Net: SMC91111-0

Hit any key to stop autoboot: 0

bfin> set bootargs root=/dev/mtdblock2 rw rootfstype=jffs2

earlyprintk=serial,uart0,57600 console=ttyBF0,57600

bfin> save

Saving Environment to Flash...

Un-Protected 1 sectors

Erasing Flash...

. done

Erased 1 sectors

Writing to Flash... 9....8....7....6....5....4....3....2....1....done

Protected 1 sectors

bfin>

************** STEP 3: Flash images.

bfin> tftp 0x1000000 vmImage

SMC91111: MAC 00:e0:22:fe:b1:3c

Using SMC91111-0 device

TFTP from server 10.100.4.174; our IP address is 10.100.4.50

Filename 'vmImage'.

Load address: 0x1000000

Loading: #################################################################

####

done

Image size is f5370 1004400 (f5370 hex)

bfin> protect off 20040000 201fffff

Un-Protected 28 sectors

bfin> erase 20040000 201fffff

............................ done

Erased 2 erase success

8 sectors

bfin> cp.b 0x1000000 20040000 0xf5370

Copy to Flash... 9....8....7....6....5....4....3....2....1....0done

b cp success

Case 1 ...PASS

fin> tftp 0x1000000 rootfs.jffs2

SMC91111: MAC 00:e0:22:fe:b1:3c

Using SMC91111-0 device

TFTP from server 10.100.4.174; our IP address is 10.100.4.50

Filename 'rootfs.jffs2'.

Load address: 0x1000000

Loading: #################################################################

#############################

done

Bytes transferred = 1376256 (150000 hex)Image size is 150000

bfin> protect off 20200000 207fffff

Un-Protected 103 sectors

bfin> erase 20200000 207fffff

.......................................................................................................

done

Erased 103 secto erase success

bfin> cp.b 0x1000000 20200000 0x150000

Copy to Flash... 9....8....7....6....5....4....3....2....1....done

bf cp success

Case 1 ...PASS

in> resetþ

U-Boot 2011.06-svn2704 (ADI-2011R1-pre) (Jul 11 2011 - 18:45:13)

CPU: ADSP bf561-0.5 (Detected Rev: 0.5) (bypass boot)

Board: ADI BF561 EZ-Kit Lite board

Support: http://blackfin.uclinux.org/

Clock: VCO: 600 MHz, Core: 600 MHz, System: 100 MHz

RAM: 64 MiB

Flash: 8 MiB

*** Warning - bad CRC, using default environment

In: serial

Out: serial

Err: serial

KGDB: [on serial] ready

Net: SMC91111-0

Hit any key to stop autoboot: 0

bfin> successful reset attempt

--- Mike Frysinger 2011-10-14 17:45:08

your test code is out of date. that last step is erasing the env sector:

erase 20200000 207fffff

please see:

http://thread.gmane.org/gmane.linux.hardware.blackfin.kernel.devel/5462

--- Mingquan Pan 2011-10-17 02:51:31

yes, after adjust the operating address, the env saving issue can be fixed now.

-Boot 2011.06-svn2704 (ADI-2011R1-pre) (Jul 11 2011 - 18:45:13)

CPU: ADSP bf561-0.5 (Detected Rev: 0.5) (bypass boot)

Board: ADI BF561 EZ-Kit Lite board

Support: http://blackfin.uclinux.org/

Clock: VCO: 600 MHz, Core: 600 MHz, System: 100 MHz

RAM: 64 MiB

Flash: 8 MiB

In: serial

Out: serial

Err: serial

KGDB: [on serial] ready

Net: SMC91111-0

Hit any key to stop autoboot: 0

bfin> set bootargs root=/dev/mtdblock2 rw rootfstype=jffs2

earlyprintk=serial,uart0,57600 console=ttyBF0,57600

bfin> save

Saving Environment to Flash...

Un-Protected 1 sectors

Erasing Flash...

. done

Erased 1 sectors

Writing to Flash... 9....8....7....6....5....4....3....2....1....done

Protected 1 sectors

bfin>

************** STEP 3: Flash images.

bfin> tftp 0x1000000 vmImage

SMC91111: MAC 00:e0:22:fe:b1:3c

Using SMC91111-0 device

TFTP from server 10.100.4.174; our IP address is 10.100.4.50

Filename 'vmImage'.

Load address: 0x1000000

Loading: #################################################################

####

done

Image size is f5370 1004400 (f5370 hex)

bfin> protect off 20040000 201fffff

Un-Protected 28 sectors

bfin> erase 20040000 201fffff

............................ done

Erased 2 erase success

8 sectors

bfin> cp.b 0x1000000 20040000 0xf5370

Copy to Flash... 9....8....7....6....5....4....3....2....1....0done

b cp success

Case 1 ...PASS

fin> tftp 0x1000000 rootfs.jffs2

SMC91111: MAC 00:e0:22:fe:b1:3c

Using SMC91111-0 device

TFTP from server 10.100.4.174; our IP address is 10.100.4.50

Filename 'rootfs.jffs2'.

Load address: 0x1000000

Loading: #################################################################

#############################

done

Bytes transferred = 1376256 (150000 hex)

bfin> Image size is 150000

protect off 20200000 207effff

Un-Protected 95 sectors

bfin> erase 20200000 207effff

...............................................................................................

done

Erased 9 erase success

5 sectors

bfin> cp.b 0x1000000 20200000 0x150000

Copy to Flash... 9....8....7....6....5....4....3....2....1....done

bf cp success

Case 1 ...PASS

in> resetþ

U-Boot 2011.06-svn2704 (ADI-2011R1-pre) (Jul 11 2011 - 18:45:13)

CPU: ADSP bf561-0.5 (Detected Rev: 0.5) (bypass boot)

Board: ADI BF561 EZ-Kit Lite board

Support: http://blackfin.uclinux.org/

Clock: VCO: 600 MHz, Core: 600 MHz, System: 100 MHz

RAM: 64 MiB

Flash: 8 MiB

In: serial

Out: serial

Err: serial

KGDB: [on serial] ready

Net: SMC91111-0

Hit any key to stop autoboot: 0

bfin> successful reset attempt

As to the original issue, we can leave it open till it doesn't show up again.

--- Sonic Zhang 2011-10-17 04:38:09

The crash when run update on bf561-ezkit can't be replicated each time.

Grace prefer to keep this open.

--- Mingquan Pan 2011-10-19 02:15:30

I just see another dump info during uboot reset on bf527-ezkit with low sclk and

cclk.

U-Boot 2011.09-svn2725 (ADI-2011R1-pre) (Oct 18 2011 - 21:01:35)^M

CPU: ADSP bf527-0.0 (Detected Rev: 0.2) (parallel flash boot)^M

Board: ADI BF527 EZ-Kit board^M

Support: http://blackfin.uclinux.org/^M

Clock: VCO: 400 MHz, Core: 200 MHz, System: 100 MHz^M

RAM: 64 MiB^M

Flash: ^M

Ack! Something bad happened to the Blackfin!^M

SEQUENCER STATUS:^M

SEQSTAT: 00002024 IPEND: 0032 SYSCFG: af2cf4e5^M

HWERRCAUSE: 0x0: undef^M

EXCAUSE : 0x24: misaligned data^M

RETE: <0x(null)> /* Maybe null pointer? */^M

RETN: <0x03e9fdd4> /* unknown address */^M

RETX: <0x03f51cee> { _flash_write_cmd + 0x12 }^M

RETS: <0x03f51d62> { _flash_unlock_seq + 0x1a }^M

RETI: <0x03f400e2> { _start + 0xe2 }^M

DCPLB_FAULT_ADDR: <0x000000b4> /* unknown address */^M

ICPLB_FAULT_ADDR: <0x03f51cee> { _flash_write_cmd + 0x12 }^M

PROCESSOR STATE:^M

R0 : 00020fdf R1 : 00000000 R2 : 00000555 R3 : 00000003^M

R4 : 00000052 R5 : 00000051 R6 : 00000002 R7 : 00000000^M

P0 : 00000086 P1 : 00000001 P2 : 000000aa P3 : 03e9ffb0^M

P4 : 03fbbc04 P5 : 000000aa FP : 03f64414 SP : ffb00f18^M

LB0: 03f41a0c LT0: 03f41a0c LC0: 00000000^M

LB1: 03f5202c LT1: 03f52012 LC1: 00000000^M

B0 : ffb00400 L0 : 00000000 M0 : 00000005 I0 : 04000000^M

B1 : 00000000 L1 : 00000000 M1 : 03edeba8 I1 : 00000000^M

B2 : 00000000 L2 : 00000000 M2 : 00008000 I2 : 0000000f^M

B3 : 00000000 L3 : 00000000 M3 : 03fb673f I3 : 0000001b^M

A0.w: 00000020 A0.x: 00000000 A1.w: 00000020 A1.x: 00000000^M

USP : ffb00ffc ASTAT: 00001025^M

Hardware Trace:^M

0 Target : <0x03f416c8> { _trap_c + 0x0 }^M

Source : <0x03f402a8> { _trap + 0x6c }^M

1 Target : <0x03f4023c> { _trap + 0x0 }^M

Source : <0x03f51cec> { _flash_write_cmd + 0x10 }^M

2 Target : <0x03f51cdc> { _flash_write_cmd + 0x0 }^M

Source : <0x03f51d5e> { _flash_unlock_seq + 0x16 }^M

3 Target : <0x03f51d48> { _flash_unlock_seq + 0x0 }^M

Source : <0x03f5221c> { _flash_get_size + 0x2d4 }^M

4 Target : <0x03f52218> { _flash_get_size + 0x2d0 }^M

Source : <0x03f51d44> { _flash_write_cmd + 0x68 }^M

5 Target : <0x03f51d3c> { _flash_write_cmd + 0x60 }^M

Source : <0x03f51d2c> { _flash_write_cmd + 0x50 }^M

6 Target : <0x03f51d28> { _flash_write_cmd + 0x4c }^M

Source : <0x03f51d06> { _flash_write_cmd + 0x2a }^M

7 Target : <0x03f51d00> { _flash_write_cmd + 0x24 }^M

Source : <0x03f51cda> { _flash_make_cmd + 0x4a }^M

8 Target : <0x03f51cbc> { _flash_make_cmd + 0x2c }^M

Source : <0x03f637f4> { ___modsi3 + 0x14 }^M

9 Target : <0x03f637ea> { ___modsi3 + 0xa }^M

Source : <0x03f6372a> { ___divsi3 + 0xa6 }^M

10 Target : <0x03f63720> { ___divsi3 + 0x9c }^M

Source : <0x03f63698> { ___divsi3 + 0x14 }^M

11 Target : <0x03f63684> { ___divsi3 + 0x0 }^M

Source : <0x03f637e6> { ___modsi3 + 0x6 }^M

12 Target : <0x03f637e0> { ___modsi3 + 0x0 }^M

Source : <0x03f51cb8> { _flash_make_cmd + 0x28 }^M

13 Target : <0x03f51caa> { _flash_make_cmd + 0x1a }^M

Source : <0x03f51cd0> { _flash_make_cmd + 0x40 }^M

14 Target : <0x03f51cbc> { _flash_make_cmd + 0x2c }^M

Source : <0x03f637f4> { ___modsi3 + 0x14 }^M

15 Target : <0x03f637ea> { ___modsi3 + 0xa }^M

Source : <0x03f6372a> { ___divsi3 + 0xa6 }^M

Ack! Something bad happened to the Blackfin!^M

--- Mingquan Pan 2013-05-16 02:21:16

It doesn't show now.Close this.

U-Boot 2013.04 (ADI-2013R1-pre)-00353-g5a20eb3-dirty (May 14 2013 - 10:09:42),

Build: jenkins-label=UBOOT_BF561-EZKIT-23

CPU: ADSP bf561-0.3 (Detected Rev: 0.5) (bypass boot)

Board: ADI BF561 EZ-Kit Lite board

Support: http://blackfin.uclinux.org/

Clock: VCO: 390 MHz, Core: 195 MHz, System: 97.500 MHz

RAM: 64 MiB

Flash: 8 MiB

In: serial

Out: serial

Err: serial

KGDB: [on serial] ready

Net: SMC91111-0

Hit any key to stop autoboot: 0

bfin>

bfin> run update

SMC91111: MAC 00:11:22:33:44:55

Using SMC91111-0 device

TFTP from server 10.100.4.174; our IP address is 10.100.4.50

Filename 'u-boot.bin'.

Load address: 0x1000000

Loading: ############

3 MiB/s

done

Bytes transferred = 167604 (28eb4 hex)

Un-Protected 3 sectors

... done

Erased 3 sectors

Copy to Flash... 9....8....7....6....5....4....3....2....1....done

bfin> save

Saving Environment to Flash...

Un-Protected 1 sectors

Erasing Flash...

. done

Erased 1 sectors

Writing to Flash... 9....8....7....6....5....4....3....2....1....done

Protected 1 sectors

bfin> reset�

U-Boot 2013.04 (ADI-2013R1-pre)-00353-g5a20eb3-dirty (May 13 2013 - 20:17:06),

Build: jenkins-label=UBOOT_BF561-EZKIT-23

CPU: ADSP bf561-0.3 (Detected Rev: 0.5) (bypass boot)

Board: ADI BF561 EZ-Kit Lite board

Support: http://blackfin.uclinux.org/

Clock: VCO: 600 MHz, Core: 600 MHz, System: 100 MHz

RAM: 64 MiB

Flash: 8 MiB

In: serial

Out: serial

Err: serial

KGDB: [on serial] ready

Net: SMC91111-0

Hit any key to stop autoboot: 0

bfin> print

addip=set bootargs $(bootargs)

ip=$(ipaddr):$(serverip):$(gatewayip):$(netmask):$(hostname):eth0:off

autoload=no

baudrate=57600

bootargs=root=/dev/mtdblock0 rw clkin_hz=30000000

earlyprintk=serial,uart0,57600 console=ttyBF0,57600

bootcmd=bootm 0x20100000

bootdelay=9

date_tested=Tue May 14 13:34:44 GMT 2013

ethact=SMC91111-0

ethaddr=00:11:22:33:44:55

fileaddr=1000000

filesize=28eb4

flashboot=bootm 0x20100000

gatewayip=10.100.4.174

hostname=bf561-ezkit

ipaddr=10.100.4.50

loadaddr=0x1000000

loads_echo=1

netmask=255.255.255.0

nfsargs=set bootargs root=/dev/nfs rw

nfsroot=$(serverip):$(rootpath),tcp,nfsvers=3

nfsboot=tftp $(loadaddr) $(nfsfile);run nfsargs;run addip;bootm

nfsfile=vmImage

ramargs=set bootargs root=/dev/mtdblock0 rw clkin_hz=30000000

earlyprintk=serial,uart0,57600 console=ttyBF0,57600

ramboot=tftp $(loadaddr) $(ramfile);run ramargs;run addip;bootm

ramfile=uImage

rootpath=/romfs

serveraddr=e0:05:c5:f2:02:c6

serverip=10.100.4.174

stderr=serial

stdin=serial

stdout=serial

tftp_boot=tftp 0x1000000 linux.dxe;boote 0x1000000

ubootfile=u-boot.bin

update=tftp $(loadaddr) $(ubootfile);protect off 0x20000000 +$(filesize);erase

0x20000000 +$(filesize);cp.b $(loadaddr) 0x20000000 $(filesize)

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