[U-Boot] TFTP timeout issue while downloading the linux kernel in openpxa vpac270 u-boot source code
Marek Vasut
marek.vasut at gmail.com
Thu Aug 26 17:30:17 CEST 2010
Dne Čt 26. srpna 2010 17:06:08 StephenPaulraj Chinnadurai-ERS,HCLTech napsal(a):
> -----Original Message-----
> From: Marek Vasut [mailto:marek.vasut at gmail.com]
> Sent: Thursday, August 26, 2010 5:56 PM
> To: StephenPaulraj Chinnadurai-ERS,HCLTech
> Cc: u-boot at lists.denx.de; Wolfgang Denk
> Subject: Re: [U-Boot] TFTP timeout issue while downloading the linux kernel
> in openpxa vpac270 u-boot source code
>
> Dne St 25. srpna 2010 11:03:30 StephenPaulraj Chinnadurai-ERS,HCLTech
napsal(a):
> > Hello Marek,
> >
> > I increased the memory clock speed from 104 MHz to 208 MHz in the PXA270
> > controller by including the following lines of in the .macro
> > pxa_clock_setup (macro.h file)
> >
> > ldr r0, =0x8
> > mcr p14, 0, r0, c6, c0, 0
> >
> > After increasing the memory clock speed, I can download the zImage
> > (2.8MB) through tftp without any timeout.
>
> Your memory seems misconfigured. Can you run "mtest" on it ?
>
> I executed the mtest command and waited for an hour, u-boot doesn't
> displayed any error.
>
> The memory start and end address is defined as follow in the
> include/configs/myboard.h file.
>
> #define CONFIG_SYS_MEMTEST_START 0xa0400000 /* memtest works on
> */ #define CONFIG_SYS_MEMTEST_END 0xa0800000 /* 4 ... 8 MB
> in DRAM */
>
> #define CONFIG_SYS_LOAD_ADDR (0xa1000000)
>
> Pattern 000004BF Writing... Reading...
> Pattern FFFFFB40 Writing... Reading...
> Pattern 000004C0 Writing... Reading...
> Pattern FFFFFB3F Writing... Reading...
> Pattern 000004C1 Writing... Reading...
>
Test some bigger area then ... at best the one where you're downloading the
image.
> > But I can't download system.img (android system image file of 55MB) into
> > the SDRAM.
> >
> > Our customize board has LAN91C111Ii-NU controller connected to the static
> > memory 4 (nCS4) of PXA270, and uses 32 bit connection.
> >
> > Below are my observations while using tftpboot command:
> >
> > Observation 1:
> > Exactly after downloading 3498200 bytes the first timeout is occurring,
> > sometimes it is recovering and most of the times it is not recovering,
> > and "Retry count exceeded" message is displayed.
> >
> > MDT-Boot> tftp a1300000 aaaa
> >
> > SMC91111: MAC 00:00:70:26:1e:01
> >
> > TFTP blocksize = 1468, timeout = 5 s
> >
> > Using SMC91111-0 device
> >
> > TFTP from server 10.100.144.245; our IP address is 10.100.144.90
> >
> > Filename 'aaaa'.
> >
> > Load address: 0xa1300000
> >
> > Loading: *
> > #################################################################
> >
> > #################################################################
> >
> > #################################################################
> >
> > ###########################################T ######################
> >
> > #############
> >
> > done
> >
> > Bytes transferred = 4000000 (3d0900 hex)
> >
> > MDT-Boot>
> >
> > SMC91111: MAC 00:00:70:26:1e:01
> >
> > TFTP blocksize = 1468, timeout = 5 s
> >
> > Using SMC91111-0 device
> >
> > TFTP from server 10.100.144.245; our IP address is 10.100.144.90
> >
> > Filename 'aaaa'.
> >
> > Load address: 0xa1300000
> >
> > Loading: *
> > #################################################################
> >
> > #################################################################
> >
> > #################################################################
> >
> > ##########################################T ##
> >
> > done
> >
> > Observation 2:
> > I analyzed the reason for continues timeout and found that the LAN91c1111
> > fifo is full, some 44 byte, 48 byte, 60 byte, 78 byte packet are filling
> > the fifo. PXA270 customize board is connected to our company network.
> >
> > Got IP
> > len=78, v=45
> > packet received
> > packet received
> > Receive from protocol 0x800
> > Got IP
> > len=44, v=45
> > packet received
> > packet received
> > Receive from protocol 0x0
> > packet received
> > packet received
> > Receive from protocol 0x800
> > Got IP
> > len=60, v=45
> > packet received
> > packet received
> > Receive from protocol 0x800
> > Got IP
> > len=60, v=45
> > packet received
> > packet received
> > Receive from protocol 0x800
> > Got IP
> > len=48, v=45
> > packet received
> > packet received
> > Receive from protocol 0x800
> > Got IP
> > len=48, v=45
> > packet received
> > packet received
> > Receive from protocol 0x806
> >
> > Observation 3:
> > I splited the 55 MB system.img file to 9 MB each and then tried to
> > download it through tftp.
> >
> > I found I can able to download 9 MB files with one or two timeouts.
> >
> > MDT-Boot> tftp a1300000 aaaa
> >
> > SMC91111: MAC 00:00:70:26:1e:01
> >
> > TFTP blocksize = 1468, timeout = 5 s
> >
> > Using SMC91111-0 device
> >
> > TFTP from server 10.100.144.245; our IP address is 10.100.144.90
> >
> > Filename 'aaaa'.
> >
> > Load address: 0xa1300000
> >
> > Loading: *
> > #################################################################
> >
> > #################################################################
> >
> > #################################################################
> >
> > ###########################################T ######################
> >
> > #################################################################
> >
> > #################################################################
> >
> > #################################################################
> >
> > #################################################################
> >
> > #################################################################
> >
> > #############################
> >
> > done
> >
> > Bytes transferred = 9000000 (895440 hex)
> >
> >
> > Why I can't download the 50 MB files into the SDRAM through tftp? Is that
> > I need to still look into the cpu register configuration?
> >
> > Whether I need to look and debug the net.c and tftp.c? But the same files
> > net.c and tftp.c which is working fine in the Littleton board.
> >
> > How to stop the 44 byte, 48 byte, 60 byte and 78 byte packets entering
> > into the LAN91C controller? Is there any way to filter those packets.
> >
> > What is the reason for the first timeout after downloading exactly
> > 3498200 bytes through tftp?
> >
> > Kindly help to solve this problem. Kindly suggest some ways, so that I
> > will debug the source code.
> >
> >
> > Thanks and Regards
> > Stephen Paulraj C
> >
> > -----Original Message-----
> > From: u-boot-bounces at lists.denx.de [mailto:u-boot-bounces at lists.denx.de]
> > On Behalf Of Marek Vasut Sent: Thursday, August 12, 2010 11:05 PM
> > To: StephenPaulraj Chinnadurai-ERS,HCLTech
> > Cc: u-boot at lists.denx.de
> > Subject: Re: [U-Boot] TFTP timeout issue while downloading the linux
> > kernel in openpxa vpac270 u-boot source code
> >
> > Dne Čt 12. srpna 2010 19:11:29 StephenPaulraj Chinnadurai-ERS,HCLTech
>
> napsal(a):
> > > Hello Marek,
> > >
> > > I am using a customize board which has PXA270 controller. SMCS
> > > LAN91C111Ii-NU is connected to the static memory 4 (nCS4).
> >
> > I see, so it's not vpac270 bug.
> >
> > > I have defined following macro value in the include/configs/<myboard.h>
> > > file.
> > >
> > > #define CONFIG_SYS_GPDR2_VAL 0x70DF3FFF
> > > GPIO 80 is configured as output
> > >
> > > #define CONFIG_SYS_GPSR2_VAL 0x10010000 /*nCS4*/
> > > GPIO 80 is set
> >
> > You don't really need to configure these if you then set it to AF2.
> >
> > > #define CONFIG_SYS_GAFR2_U_VAL 0x1504A176
> > > Alternate function 2 is selected for GPIO 80
> > >
> > > #define CONFIG_SYS_MSC2_VAL 0x0000B884
> >
> > Zylonite 300 uses value 0x3c for the SMC91111 in the corresponding part
> > of MSCx register in original Marvell sources, Zylonite320 uses 0x123c
> > ... maybe you should review the MSCx configuration here. For pxa27x, I
> > guess it might be something like 0x123c too.
> >
> > From the log below, it really seems the ethernet chip is choking.
> >
> > Cheers
> >
> > > RT4 = 4 Variable Latency I/O (VLIO)
> > >
> > > ROM4 Bus Width
> > > 0 = 32 Bits
> > >
> > > RDF4 = 8
> > >
> > > RDN4 = 8
> > >
> > > RRR4 = 3
> > >
> > > RBUFF4 = 1 Faster device
> > >
> > > #define CONFIG_SMC91111
> > > #define CONFIG_SMC91111_BASE 0x10000300 /*nCS4*/
> > > #define CONFIG_SMC_USE_32_BIT
> > > #undef CONFIG_SMC_91111_EXT_PHY
> > >
> > >
> > > Ethernet controller is working fine. I can able to ping the machines
> > > connected to the network.
> > >
> > > tftpboot command is also working fine, I can able to download the
> > > u-boot.bin to SDRAM.
> > >
> > > But I have issue in downloading bigger files (zImage which is 2.5 MB)
> > > to the SDRAM. I am getting the following timeout messages and the
> > > download is not getting completed.
> > >
> > > Loading: *########T T T T T T T T T T T T T T T T T T T T
> > > Retry count exceeded; starting again
> > >
> > > Please help me to come out of this issue.
> > >
> > > Kindly find the complete log below:
> > >
> > > __
> > >
> > >
> > > U-Boot 2010.06-rc1 (Aug 13 2010 - 09:11:31)
> > >
> > >
> > > DRAM: 128 MiB
> > >
> > > Flash: 64 MiB
> > >
> > > In: serial
> > >
> > > Out: serial
> > >
> > > Err: serial
> > >
> > > Net: SMC91111-0
> > >
> > > Hit any key to stop autoboot: 2 ___ 0
> > >
> > > MDT-Boot> print
> > >
> > > bootargs=console=tty0 console=ttyS1, root=/dev/sda1 rootdelay=15
> > >
> > > bootcmd=if mmc init && fatload mmc 0 0xa0000000 uImage; then bootm
> > > 0xa0000000; fi; if usb reset && fatload usb 0 0xa0000000 uImage; then
> > > bootm 0xa0000000; fi; bootm 0x150000;
> > >
> > > bootdelay=2
> > >
> > > baudrate=115200
> > >
> > > ethaddr=00:00:70:26:1E:01
> > >
> > > netmask=255.255.255.0
> > >
> > > ethact=SMC91111-0
> > >
> > > ipaddr=10.100.144.42
> > >
> > > serverip=10.100.144.245
> > >
> > > gatewayip=10.100.144.255
> > >
> > > stdin=serial
> > >
> > > stdout=serial
> > >
> > > stderr=serial
> > >
> > >
> > > Environment size: 445/32764 bytes
> > >
> > > MDT-Boot> ping 10.100.144.245
> > >
> > > SMC91111: MAC 00:00:70:26:1e:01
> > >
> > > Using SMC91111-0 device
> > >
> > > host 10.100.144.245 is alive
> > >
> > > MDT-Boot> tftp a3000000 u-boot.bin
> > >
> > > SMC91111: MAC 00:00:70:26:1e:01
> > >
> > > Using SMC91111-0 device
> > >
> > > TFTP from server 10.100.144.245; our IP address is 10.100.144.42
> > >
> > > Filename 'u-boot.bin'.
> > >
> > > Load address: 0xa3000000
> > >
> > > Loading: *_############
> > >
> > > done
> > >
> > > Bytes transferred = 335280 (51db0 hex)
> > >
> > > MDT-Boot> tftp a3000000 zImage
> > >
> > > SMC91111: MAC 00:00:70:26:1e:01
> > >
> > > Using SMC91111-0 device
> > >
> > > TFTP from server 10.100.144.245; our IP address is 10.100.144.42
> > >
> > > Filename 'zImage'.
> > >
> > > Load address: 0xa3000000
> > >
> > > Loading: *_####################T T T T T T T T T T T T T T T T T T T T
> > >
> > > Retry count exceeded; starting again
> > >
> > > SMC91111: MAC 00:00:70:26:1e:01
> > >
> > > Using SMC91111-0 device
> > >
> > > TFTP from server 10.100.144.245; our IP address is 10.100.144.42
> > >
> > > Filename 'zImage'.
> > >
> > > Load address: 0xa3000000
> > >
> > > Loading: *_#######T ##T #T T T T T T T T T T T T T T T T T T
> > >
> > > Retry count exceeded; starting again
> > >
> > > SMC91111: MAC 00:00:70:26:1e:01
> > >
> > > Using SMC91111-0 device
> > >
> > > TFTP from server 10.100.144.245; our IP address is 10.100.144.42
> > >
> > > Filename 'zImage'.
> > >
> > > Load address: 0xa3000000
> > >
> > > Loading: *_#######################T T T T T T T T T T T T T T T T T T T
> > > T
> > >
> > > Retry count exceeded; starting again
> > >
> > >
> > > Thanks and Regards
> > > Stephen Paulraj C
> >
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