[meta-xilinx] mainline u-boot on zedboard

[gmane at reliableembeddedsystems.com]

Hi,

>> 
>> If you use u-boot master you'll end up with a spl/boot.bin.
> 
> I've been working on U-Boot master, and getting some of the SPL stuff
> working well (including boot.bin generation :)). If you want to use a
> mainline U-Boot go for master till 2016.01 is released. Also note,
> make sure to use 'u-boot-dtb.img' when using mainline U-Boot.
> 
> On a related note I am trying to get feature parity so that
> meta-xilinx can use mainline U-Boot for Zynq (and later MicroBlaze).
> So I am definitely interested in knowing about issues or general
> comments as to whether it meets peoples requirements.

I just build the latest an greatest u-boot from master and copied those 
files to the SD card:

scp spl/boot.bin root at 192.168.42.12:/run/media/mmcblk0p1

scp u-boot-dtb.img  root at 192.168.42.12:/run/media/mmcblk0p1

... but ...

U-Boot SPL 2016.01-mainline-student-vmaster-00002-g3861d78 (Jan 09 2016 
- 12:05:10)
mmc boot
Trying to boot from MMC
reading system.dtb
spl_load_image_fat_os: error reading image system.dtb, err - -1
reading u-boot-dtb.img
reading u-boot-dtb.img


U-Boot 2016.01-mainline-student-vmaster-00002-g3861d78 (Jan 09 2016 - 
12:05:10 +0200)

Model: Zynq Zed Development Board
Board:  Xilinx Zynq
DRAM:  ECC disabled 512 MiB
MMC:   sdhci at e0100000: 0
Using default environment

In:    serial at e0001000
Out:   serial at e0001000
Err:   serial at e0001000
Model: Zynq Zed Development Board
Board:  Xilinx Zynq
Net:   ZYNQ GEM: e000b000, phyaddr 0, interface rgmii-id

Warning: ethernet at e000b000 (eth0) using random MAC address - 
0a:42:f7:b9:44:8c
eth0: ethernet at e000b000
Hit any key to stop autoboot:  0
Copying FIT from SD to RAM...
reading fit.itb
** Unable to read file fit.itb **
=>

Looks like it does not read my uEnv.txt[1] anymore

If I enter what I have in uEnv.txt manually it works. Is it 
intentionally that you don't check for uEnv.txt anymore?

Also saveenv does not work, so I guess I would like to have something 
like uEnv.txt.

=> setenv hostname zedboard
=> setenv kernel_addr_r 0x3000000
=> setenv expand_bootfile 'setenv bootfile ${hostname}/uImage'
=> setenv fdt_addr_r 0x2a00000
=> setenv expand_fdtfile 'setenv fdtfile ${hostname}/zedboard-zynq7.dtb'
=> setenv bitstream_addr_r 0x100000
=> setenv expand_bitstream 'setenv bitstream ${hostname}/fpga.bin'
=> setenv ipaddr 192.168.42.12
=> setenv serverip 192.168.42.1
=> setenv gatewayip 192.168.42.1
=> setenv netmask 255.255.255.0
=> setenv kernel_netload 'tftpboot ${kernel_addr_r} ${bootfile}'
=> setenv fdt_netload 'tftpboot ${fdt_addr_r} ${fdtfile}'
=> setenv bitstream_netload_fpgaload 'if tftpboot ${bitstream_addr_r} 
${bitstream}; then fpga load 0 ${bitstream_addr_r} ${filesize}; else 
echo no ${bitstream}; fi'
=> setenv netload 'run bitstream_netload_fpgaload kernel_netload 
fdt_netload'
=> setenv bootargs console=ttyPS0,115200n8
=> setenv nfsroot /opt/poky/zedboard-rootfs
=> setenv ips_to_bootargs 'setenv bootargs ${bootargs} 
ip=${ipaddr}:${serverip}:${gatewayip}:${netmask}:${hostname}:${netdev}:off'
=> setenv nfs_to_bootargs 'setenv bootargs ${bootargs} 
nfsroot=${serverip}:${nfsroot},v3,tcp'
=> setenv default_to_bootargs 'setenv bootargs ${bootargs} noinitrd 
nohlt panic=1'
=> setenv compose_nfs_bootargs 'run ips_to_bootargs; run 
nfs_to_bootargs; run default_to_bootargs'
=> setenv nfsboot 'echo Booting from nfs...; run compose_nfs_bootargs'
=> setenv compose_nfsboot 'run nfsboot'
=> setenv compose_default 'run expand_bitstream; echo bitstream: 
${bitstream}; run expand_bootfile; echo bootfile: ${bootfile}; run 
expand_fdtfile; echo fdtfile: ${fdtfile}; ping ${serverip}'
=> setenv uenvcmd 'run compose_default; run netload; run 
compose_nfsboot; printe bootargs; bootm ${kernel_addr_r} - 
${fdt_addr_r}'
=> run uenvcmd
bitstream: zedboard/fpga.bin
bootfile: zedboard/uImage
fdtfile: zedboard/zedboard-zynq7.dtb
Using ethernet at e000b000 device
host 192.168.42.1 is alive
Using ethernet at e000b000 device
TFTP from server 192.168.42.1; our IP address is 192.168.42.12
Filename 'zedboard/fpga.bin'.
Load address: 0x100000
....

> 
> Regards,
> Nathan

[1] 
https://github.com/RobertBerger/meta-mainline/blob/jethro-training-v4.4.x/meta-xilinx-zedboard-ml/recipes-bsp/u-boot/u-boot/tftp-nfs-uEnv-zedboard.txt

> 
>> 
>> Cheers,
>> 
>> Moritz
>> --
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Regards,

Robert