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HDMI output at u-boot load


stalker37
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Hello.

I can't  enable HDMI output for A64 on Orangepiwin platform - every time screen is blank (monitor not active).

Monitor connected over hdmi to vga adapter.

After linux kernel is loaded - monitor is alived.

 

I try some options in boot.scr withnout effect for u-boot:

video-mode=sunxi:1024x768-24@60,monitor=dvi,hpd=0,edid=1

video-mode=sunxi:1024x768-24@60,monitor=dvi,hpd=1,edid=1

video-mode=sunxi:1024x768-24@60,monitor=dvi,hpd=0,edid=0

and

setenv  console=tty0 hdmi.audio=EDID:0 disp.screen0_output_mode=EDID:1024x768p60

 

Need help.

 

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FULL Output of u-boot with "setenv video-mode sunxi:1024x768-24@60,monitor=dvi,hpd=0,edid=0"

 

 

U-Boot SPL 2020.04-armbian (May 30 2020 - 18:45:19 +0200)                                                                                                        
DRAM: 2048 MiB                                                                                                                                                   
Trying to boot from MMC1                                                                                                                                         
NOTICE:  BL31: v2.3(debug):dd1eb34-dirty                                                                                                                         
NOTICE:  BL31: Built : 18:45:06, May 30 2020                                                                                                                     
NOTICE:  BL31: Detected Allwinner A64/H64/R18 SoC (1689)                                                                                                         
NOTICE:  BL31: Found U-Boot DTB at 0x4089d60, model: OrangePi Win/Win Plus                                                                                       
INFO:    ARM GICv2 driver initialized                                                                                                                            
INFO:    Configuring SPC Controller                                                                                                                              
INFO:    PMIC: Probing AXP803 on RSB                                                                                                                             
INFO:    PMIC: dcdc1 voltage: 3.300V                                                                                                                             
INFO:    PMIC: dcdc5 voltage: 1.500V                                                                                                                             
INFO:    PMIC: dcdc6 voltage: 1.100V                                                                                                                             
INFO:    PMIC: dldo1 voltage: 3.300V                                                                                                                             
INFO:    PMIC: dldo2 voltage: 3.300V                                                                                                                             
INFO:    PMIC: dldo4 voltage: 3.300V                                                                                                                             
INFO:    BL31: Platform setup done                                                                                                                               
INFO:    BL31: Initializing runtime services                                                                                                                     
INFO:    BL31: cortex_a53: CPU workaround for 843419 was applied                                                                                                 
INFO:    BL31: cortex_a53: CPU workaround for 855873 was applied                                                                                                 
NOTICE:  PSCI: System suspend is unavailable                                                                                                                     
INFO:    BL31: Preparing for EL3 exit to normal world                                                                                                            
INFO:    Entry point address = 0x4a000000                                                                                                                        
INFO:    SPSR = 0x3c9                                                                                                                                            


U-Boot 2020.04-armbian (May 30 2020 - 18:45:19 +0200) Allwinner Technology                                                                                       

CPU:   Allwinner A64 (SUN50I)                                                                                                                                    
Model: OrangePi Win/Win Plus                                                                                                                                     
DRAM:  2 GiB                                                                                                                                                     
MMC:   Device 'mmc@1c11000': seq 1 is in use by 'mmc@1c10000'                                                                                                    
mmc@1c0f000: 0, mmc@1c10000: 2, mmc@1c11000: 1                                                                                                                   
Loading Environment from FAT... Card did not respond to voltage select!                                                                                          
In:    serial@1c28000                                                                                                                                            
Out:   serial@1c28000                                                                                                                                            
Err:   serial@1c28000                                                                                                                                            
Net:   phy interface7                                                                                                                                            
eth0: ethernet@1c30000                                                                                                                                           
starting USB...                                                                                                                                                  
Bus usb@1c1a000: USB EHCI 1.00                                                                                                                                   
Bus usb@1c1a400: USB OHCI 1.0                                                                                                                                    
Bus usb@1c1b000: USB EHCI 1.00                                                                                                                                   
Bus usb@1c1b400: USB OHCI 1.0                                                                                                                                    
scanning bus usb@1c1a000 for devices... 1 USB Device(s) found                                                                                                    
scanning bus usb@1c1a400 for devices... 1 USB Device(s) found                                                                                                    
scanning bus usb@1c1b000 for devices... 2 USB Device(s) found                                                                                                    
scanning bus usb@1c1b400 for devices... 1 USB Device(s) found
       scanning usb for storage devices... 0 Storage Device(s) found
Autoboot in 1 seconds, press <Space> to stop
switch to partitions #0, OK
mmc0 is current device
Scanning mmc 0:1...
Found U-Boot script /boot/boot.scr
3098 bytes read in 4 ms (755.9 KiB/s)
## Executing script at 4fc00000
U-boot loaded from SD
Boot script loaded from mmc
153 bytes read in 2 ms (74.2 KiB/s)
39702 bytes read in 10 ms (3.8 MiB/s)
3821 bytes read in 7 ms (532.2 KiB/s)
Applying kernel provided DT fixup script (sun50i-a64-fixup.scr)
## Executing script at 44000000
11888744 bytes read in 986 ms (11.5 MiB/s)
17162752 bytes read in 1420 ms (11.5 MiB/s)
## Loading init Ramdisk from Legacy Image at 4fe00000 ...
   Image Name:   uInitrd
   Image Type:   AArch64 Linux RAMDisk Image (gzip compressed)
   Data Size:    11888680 Bytes = 11.3 MiB
   Load Address: 00000000
   Entry Point:  00000000
   Verifying Checksum ... OK
## Flattened Device Tree blob at 4fa00000
   Booting using the fdt blob at 0x4fa00000
EHCI failed to shut down host controller.
   Loading Ramdisk to 494a9000, end 49fff828 ... OK
   Loading Device Tree to 0000000049436000, end 00000000494a8fff ... OK

Starting kernel ...

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To enable HDMI in U-Boot for any A64 board you have to first enable DE2 driver in config file and then somehow enable voltage regulator responsible for HDMI power (this is main reason why it's not currently supported). U-Boot doesn't have AXP803 driver. Probably easiest way would be to modify ATF.

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DE2 is enabled already:

===

stalker@lab:~/BLD/u-boot$ fgrep DE2 .config
CONFIG_SUNXI_DE2=y
CONFIG_VIDEO_DE2=y

===

 

Hmm.  https://linux-sunxi.org/U-Boot#Setting_u-boot_environment_variables

says that HDMI is supported on this platform  and https://docs.armbian.com/Hardware_Allwinner/

==

U-Boot supports HDMI and LCD output on Allwinner sunxi SoCs

===

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On 8/16/2020 at 9:46 AM, jernej said:

To enable HDMI in U-Boot for any A64 board you have to first enable DE2 driver in config file and then somehow enable voltage regulator responsible for HDMI power (this is main reason why it's not currently supported). U-Boot doesn't have AXP803 driver. Probably easiest way would be to modify ATF.

but it worked with Armbian 5.83. it even did support UEFI GOP. there were issues with storage reads, when using uboot's UEFI so I updated... finding no HDMI at all. could someone point the latest version (minimal, without desktop) of Armbian, where HDMI support in uboot is still there?

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7 hours ago, valant said:

 

but it worked with Armbian 5.83. it even did support UEFI GOP. there were issues with storage reads, when using uboot's UEFI so I updated... finding no HDMI at all. could someone point the latest version (minimal, without desktop) of Armbian, where HDMI support in uboot is still there?

HDMI on my platform (Orange Pi Win/ Win Plus) worked only after linux kernel is loaded... at version 5.83 too

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@valantissue is more complicated than just some config option. Currently U-Boot doesn't support voltage regulators and rely on ATF to enable them (A64 has HDMI voltage supply pin). Logic in ATF will turn on all referenced voltage regulators, which is mostly fine. Issue is in word "mostly" - this logic will prevent ethernet PHY to power on correctly on OrangePi 3. Distros must decide what is lesser evil for time being, having no HDMI and ethernet in U-Boot or having no ethernet in Linux on OrangePi 3 (I didn't check what Armbian does exactly). Situation was discussed with maintainers and consensus is to implement voltage regulator driver in U-Boot, but that will take time. In the mean time, ATF could be updated with a improvement, which would temporary solve both situations, but I didn't find any patch for that yet.

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