bootp problems with rpi4

[Nicolas Meaux]

Hello,

I use u-boot for raspberry, but i have a different behavior between 
rpi3b and rpi4b.
* i use the same u-boot source files (2020.04-rc3-00161-g14eb12a3c8)
* i use the same method for compiling ( make -j4 ARCH=arm 
CROSS_COMPILE=aarch64-linux-gnu- all )
* i use the same dhcp/tftp server in both case .
* i just load a different config :  rpi_3_defconfig & rpi_4_defconfig

When i boot with my rpi3b, it happens the following :
* 1st bootp ok
* tftp download boot.scr.uimg file
* 2nd bootp ok
* tftp load the "bootfile filename" setup in the dhcp config which is an 
efi application
* efi application is loaded and the rest of the boot process is fine.

When i boot with my rpi4b, it happens the following :
* 1st bootp ok
* tftp download boot.scr.uimg file
* 2nd bootp nok and goes into timeout, with a tcpdump on the ethernet 
interface connected to the pi, absolutely 0 bootp requested are made by 
u-boot at this step.

***** U-boot log with rpi3b :
U-Boot 2020.04-rc3-00161-g14eb12a3c8 (Mar 21 2020 - 18:41:52 +0100)

DRAM:  948 MiB
RPI 3 Model B (0xa02082)
MMC:   mmc at 7e202000: 0, sdhci at 7e300000: 1
Loading Environment from FAT... WARNING at 
drivers/mmc/bcm2835_sdhost.c:411/bcm2835_send_command()!
WARNING at drivers/mmc/bcm2835_sdhost.c:411/bcm2835_send_command()!
Card did not respond to voltage select!
In:    serial
Out:   vidconsole
Err:   vidconsole
Net:   No ethernet found.
starting USB...
Bus usb at 7e980000: scanning bus usb at 7e980000 for devices... 3 USB 
Device(s) found
        scanning usb for storage devices... 0 Storage Device(s) found
Hit any key to stop autoboot:  0
WARNING at drivers/mmc/bcm2835_sdhost.c:411/bcm2835_send_command()!
WARNING at drivers/mmc/bcm2835_sdhost.c:411/bcm2835_send_command()!
WARNING at drivers/mmc/bcm2835_sdhost.c:411/bcm2835_send_command()!
Card did not respond to voltage select!
Card did not respond to voltage select!

Device 0: unknown device
Waiting for Ethernet connection... done.
BOOTP broadcast 1
BOOTP broadcast 2
BOOTP broadcast 3
DHCP client bound to address 10.0.0.3 (2245 ms)
Using smsc95xx_eth device
TFTP from server 10.0.0.254; our IP address is 10.0.0.3
Filename 'boot.scr.uimg'.
Load address: 0x2400000
Loading: ################################################## 322 Bytes
          34.2 KiB/s
done
Bytes transferred = 322 (142 hex)
## Executing script at 02400000
WARNING at drivers/mmc/bcm2835_sdhost.c:411/bcm2835_send_command()!
WARNING at drivers/mmc/bcm2835_sdhost.c:411/bcm2835_send_command()!
WARNING at drivers/mmc/bcm2835_sdhost.c:411/bcm2835_send_command()!
Card did not respond to voltage select!
WARNING at drivers/mmc/bcm2835_sdhost.c:411/bcm2835_send_command()!
WARNING at drivers/mmc/bcm2835_sdhost.c:411/bcm2835_send_command()!
WARNING at drivers/mmc/bcm2835_sdhost.c:411/bcm2835_send_command()!
Card did not respond to voltage select!
Bad Linux ARM64 Image magic!
Waiting for Ethernet connection... done.
BOOTP broadcast 1
BOOTP broadcast 2
BOOTP broadcast 3
*** Unhandled DHCP Option in OFFER/ACK: 60
*** Unhandled DHCP Option in OFFER/ACK: 60
DHCP client bound to address 10.0.0.3 (2195 ms)
Using smsc95xx_eth device
TFTP from server 10.0.0.254; our IP address is 10.0.0.3
Filename 'snp.efi'.
Load address: 0x1000000
Loading: ################################################## 162.7 KiB
          2.4 MiB/s
done
Bytes transferred = 166624 (28ae0 hex)
Waiting for Ethernet connection... done.
Using smsc95xx_eth device
TFTP from server 10.0.0.254; our IP address is 10.0.0.3
Filename 'dtb/broadcom/bcm2837-rpi-3-b.dtb'.
Load address: 0x2600000
Loading: ################################################## 19.1 KiB
          83 KiB/s
done
Bytes transferred = 19530 (4c4a hex)
WARNING at drivers/mmc/bcm2835_sdhost.c:411/bcm2835_send_command()!
WARNING at drivers/mmc/bcm2835_sdhost.c:411/bcm2835_send_command()!
WARNING at drivers/mmc/bcm2835_sdhost.c:411/bcm2835_send_command()!
Card did not respond to voltage select!
Scanning disk mmc at 7e202000.blk...
Disk mmc at 7e202000.blk not ready
Card did not respond to voltage select!
Scanning disk sdhci at 7e300000.blk...
Disk sdhci at 7e300000.blk not ready
Found 0 disks
efi_load_pe: Invalid DOS Signature
iPXE initialising devices...ok



iPXE 1.20.1+ (g18dc) -- Open Source Network Boot Firmware -- http://ipxe.org


***** U-boot log with rpi4b :
U-Boot 2020.04-rc3-00161-g14eb12a3c8 (Mar 19 2020 - 22:02:29 +0000)

DRAM:  1.9 GiB
RPI 4 Model B (0xb03111)
MMC:   emmc2 at 7e340000: 0, mmcnr at 7e300000: 1
Loading Environment from FAT... Card did not respond to voltage select!
In:    serial
Out:   serial
Err:   serial
Net:   eth0: genet at 7d580000
Hit any key to stop autoboot:  0
Card did not respond to voltage select!
Card did not respond to voltage select!
BOOTP broadcast 1
BOOTP broadcast 2
BOOTP broadcast 3
DHCP client bound to address 10.0.0.4 (2010 ms)
Using genet at 7d580000 device
TFTP from server 10.0.0.254; our IP address is 10.0.0.4
Filename 'boot.scr.uimg'.
Load address: 0x2400000
Loading: #
          332 KiB/s
done
Bytes transferred = 340 (154 hex)
## Executing script at 02400000
Card did not respond to voltage select!
Scanning disk emmc2 at 7e340000.blk...
Disk emmc2 at 7e340000.blk not ready
Card did not respond to voltage select!
Scanning disk mmcnr at 7e300000.blk...
Disk mmcnr at 7e300000.blk not ready
Found 0 disks
efi_load_pe: Invalid DOS Signature
Card did not respond to voltage select!
Card did not respond to voltage select!
Bad Linux ARM64 Image magic!
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
BOOTP broadcast 11
BOOTP broadcast 12
BOOTP broadcast 13
BOOTP broadcast 14
BOOTP broadcast 15
BOOTP broadcast 16
BOOTP broadcast 17

Retry time exceeded; starting again
U-Boot>


Thx in advance for any help.

Rgds,

Nicolas