Dear "Ira W. Snyder",

In message 20110714195525.GF19312@ovro.caltech.edu you wrote:

It says, right at the top:

; The values used to configure the memory controller ; are the ones U-boot uses to setup my system. ; Your system may need different ones !!! ; ; This configuration is not usable for U-boot debugging. ; Use it to debug example code loaded into SDRAM.

Correct. For U-Boot debugging, you will normally remove / comment out all such config stuff anyway. Please see the manual.

I'm hoping for a configuration that can program the flash on a bricked board. Then I can flash anything I want without fear of rendering an expensive board useless.

If your code is really in SPI flash then you need to be able to initialize the RAM and load and start U-Boot theree, because the BDI cannot write SPI flash directly.

Best regards,

Wolfgang Denk

On Thu, Jul 14, 2011 at 08:16:13PM +0000, McClintock Matthew-B29882 wrote:

On Thu, Jul 14, 2011 at 1:59 PM, Ira W. Snyder iws@ovro.caltech.edu wrote:

...

The documentation Freescale sent me claims that U-Boot is in a 4MB SPI flash, however, the U-Boot that came with the board is unable to initialize the SPI subsystem per their instructions.

=> sf probe 0 SF: Unsupported Manufacturer 00 Failed to initialize SPI flash at 0:0

SPI is working for me. What version of u-boot are you running? Can you paste your boot log?

I'm using the U-Boot that came on the board: 2009.11-V100R00. I have not changed any DIP switches. My boot log is below.

Thanks for the help, Ira

U-Boot 2009.11-V100R00 (Dec 09 2010 - 14:39:42)

CPU0: P2020E, Version: 2.0, (0x80ea0020) Core: E500, Version: 5.0, (0x80211050) Clock Configuration: CPU0:1200 MHz, CPU1:1200 MHz, CCB:600 MHz, DDR:333.333 MHz (666.667 MT/s data rate) (Asynchronous), LBC:37.500 MHz L1: D-cache 32 kB enabled I-cache 32 kB enabled I2C: ready SPI: ready DRAM: 2 GB L2: 512 KB enabled MMC: FSL_ESDHC: 0 SF: Unsupported manufacturer 00 *** Warning - bad CRC, using default environment

EEPROM: NXID v0 EEPROM: COMX

PCIE3 connected to Slot0 as Root Complex (base addr ffe08000) PCIE3 on bus 00 - 00

PCIE2 connected to Slot 1 as Root Complex (base addr ffe09000) PCIE2 on bus 01 - 01

PCIE1 connected to Slot 2 as Root Complex (base addr ffe0a000) Current Status: LSR-11, LTSSM-16, PEX width-x1, Clock-2.5GT/s Scanning PCI bus 03 03 00 18ca 0027 0300 00 PCIE1 on bus 02 - 03

In: serial Out: serial Err: serial Net: eTSEC1, eTSEC2, eTSEC3 Hit any key to stop autoboot: 0 => => sf probe 0 SF: Unsupported manufacturer 00 Failed to initialize SPI flash at 0:0 => printenv ramboot=setenv bootargs root=/dev/ram rw DVO_OUTPUT=$DVO_OUTPUT console=$consoledev,$baudrate $othbootargs;tftp $ramdiskaddr $tftppath/$ramdiskfile;tftp $loadaddr $tftppath/$bootfile;tftp $fdtaddr $tftppath/$fdtfile;bootm $loadaddr $ramdiskaddr $fdtaddr nfsboot=setenv bootargs root=/dev/nfs rw nfsroot=$serverip:$rootpath ip=$ipaddr:$serverip:$gatewayip:$netmask:$hostname:$netdev:off DVO_OUTPUT=$DVO_OUTPUT console=$consoledev,$baudrate $othbootargs;tftp $loadaddr $tftppath/$bootfile;tftp $fdtaddr $tftppath/$fdtfile;bootm $loadaddr - $fdtaddr bootdelay=10 baudrate=115200 loads_echo=1 ipaddr=192.168.0.250 serverip=192.168.0.197 rootpath=/local/tftpboot/COMX-P2020/current/rootfs_nfs gatewayip=192.168.0.1 netmask=255.255.255.0 hostname=COMX-P2020 bootfile=uImage loadaddr=1000000 bootcmd=run sdboot sdboot=setenv bootargs root=/dev/mmcblk0p2 rw rootdelay=$rootdelaysecond DVO_OUTPUT=$DVO_OUTPUT console=$consoledev,$baudrate $othbootargs; mmcinfo;ext2load mmc 0:2 $loadaddr /boot/$bootfile;ext2load mmc 0:2 $fdtaddr /boot/$fdtfile;bootm $loadaddr - $fdtaddr sdfatboot=setenv bootargs root=/dev/ram rw rootdelay=$rootdelaysecond DVO_OUTPUT=$DVO_OUTPUT console=$consoledev,$baudrate $othbootargs; mmcinfo;fatload mmc 0:1 $loadaddr $bootfile;fatload mmc 0:1 $fdtaddr $fdtfile;fatload mmc 0:1 $ramdiskaddr $ramdiskfile;bootm $loadaddr $ramdiskaddr $fdtaddr usbboot=setenv bootargs root=/dev/sda1 rw rootdelay=$rootdelaysecond DVO_OUTPUT=$DVO_OUTPUT console=$consoledev,$baudrate $othbootargs;usb start;ext2load usb 0:1 $loadaddr /boot/$bootfile;ext2load usb 0:1 $fdtaddr /boot/$fdtfile;bootm $loadaddr - $fdtaddr usbfatboot=setenv bootargs root=/dev/ram rw DVO_OUTPUT=$DVO_OUTPUT console=$consoledev,$baudrate $othbootargs; usb start; fatload usb 0:2 $loadaddr $bootfile; fatload usb 0:2 $fdtaddr $fdtfile; fatload usb 0:2 $ramdiskaddr $ramdiskfile; bootm $loadaddr $ramdiskaddr $fdtaddr usbext2boot=setenv bootargs root=/dev/ram rw DVO_OUTPUT=$DVO_OUTPUT console=$consoledev,$baudrate $othbootargs; usb start; ext2load usb 0:4 $loadaddr $bootfile; ext2load usb 0:4 $fdtaddr $fdtfile; ext2load usb 0:4 $ramdiskaddr $ramdiskfile; bootm $loadaddr $ramdiskaddr $fdtaddr upgradespi=sf probe 0;setenv startaddr 0;setenv erasesize a0000;tftp 1000000 $tftppath/$uboot_spi;sf erase $startaddr $erasesize;sf write 1000000 $startaddr $filesize;sf erase 100000 120000 clearspienv=sf probe 0;sf erase 100000 20000 othbootargs=ramdisk_size=700000 cache-sram-size=0x10000 netdev=eth0 rootdelaysecond=15 uboot_nor=u-boot-nor.bin uboot_spi=u-boot-spi.bin uboot_sd=u-boot-sd.bin consoledev=ttyS0 ramdiskaddr=2000000 ramdiskfile=rootfs-dev.ext2.img fdtaddr=c00000 fdtfile=comx.dtb tftppath=COMX-P2020/current DVO_OUTPUT=enable ethaddr=EC:9E:CD:01:4D:B4 eth1addr=EC:9E:CD:01:4D:B5 eth2addr=EC:9E:CD:01:4D:B6 ethact=eTSEC1

Environment size: 2804/8188 bytes