[PATCH] configs: layerscape: Disable the EFI_LOADER feature

[Mian Yousaf Kaukab]

On Mon, Jul 26, 2021 at 07:37:53AM +0000, Z.Q. Hou wrote:
> Hi Micheal,
> 
> Pasted the log below, the direct cause seems the u-boot DTB doesn't have /cpus node.
> 
> => run bootcmd_mmc0 
> switch to partitions #0, OK
> mmc0 is current device
> Scanning mmc 0:1...
> libfdt fdt_check_header(): FDT_ERR_BADMAGIC
> Scanning disk esdhc at 1560000.blk...
> Found 5 disks 
> No EFI system partition
> couldn't find /cpus 
> "Synchronous Abort" handler, esr 0x96000006
> elr: 0000000082004a6c lr : 0000000082004a30 (reloc)
> elr: 00000000fbd25a6c lr : 00000000fbd25a30
> x0 : 0000000087f00a88 x1 : 000000001cfbfd5e
> x2 : efbeaddeefbeadde x3 : 00000000efbeadde
> x4 : 00000000fffffffc x5 : 0000000087f037d2
> x6 : 0000000000000a58 x7 : 0000000000000003
> x8 : 0000000087f00000 x9 : 0000000000000008
> x10: 0000000000000a44 x11: 00000000fbc17c6c
> x12: 00000000000009e4 x13: 0000000000000000
> x14: 0000000087f00000 x15: 00000000fbc180d8
> x16: 00000000fbd742d0 x17: 0000000000000000
> x18: 00000000fbc1cdb0 x19: 00000000000009e4
> x20: 0000000087f00000 x21: 00000000fbdb3404
> x22: 00000000fbdb4a97 x23: 0000000000000018
> x24: 00000000fbde5d44 x25: 0000000000000000
> x26: 0000000000000000 x27: 0000000000000000
> x28: 00000000fbc5ba60 x29: 00000000fbc17d30
> 
> Code: a94153f3 a9425bf5 a8c47bfd d65f03c0 (b8617803) 
> Resetting CPU ...
>  
> 
> > 
> > And why don't you fix the fdt_addr then? Shouldn't it be unset if there is no
> > actual device tree present in a ROM section? (I don't say there isn't another
> > underlying problem when you use an invalid fdt_addr).
>  
> The problem shown in above log is triggered when unset the fdt_addr.
On which platform are you seeing this issue?

I have tested v2021.07 on ls1043a-rdb and it doesn't reproduce.

Board is booting from NOR and I have two mmc partitions:
Device           Start      End  Sectors  Size Type
/dev/mmcblk0p1    2048  1048576  1046529  511M Linux filesystem
/dev/mmcblk0p2 1050624 15523806 14473183  6.9G Linux filesystem

=> run bootcmd_mmc0
switch to partitions #0, OK
mmc0 is current device
Scanning mmc 0:1...
Scanning disk esdhc at 1560000.blk...
Found 3 disks
No EFI system partition
PCIe1: pcie at 3400000 disabled
PCIe2: pcie at 3500000 Root Complex: no link
PCIe3: pcie at 3600000 Root Complex: no link
WARNING failed to get smmu node: FDT_ERR_NOTFOUND
WARNING failed to get smmu node: FDT_ERR_NOTFOUND
BootOrder not defined
EFI boot manager: Cannot load any image
Scanning mmc 0:2...
WARNING failed to get smmu node: FDT_ERR_NOTFOUND
WARNING failed to get smmu node: FDT_ERR_NOTFOUND
BootOrder not defined
EFI boot manager: Cannot load any image
=>

I still don't see the issue even if I remove fdt_addr:
=> setenv fdt_addr
=> run bootcmd_mmc0
switch to partitions #0, OK
mmc0 is current device
Scanning mmc 0:1...
WARNING failed to get smmu node: FDT_ERR_NOTFOUND
WARNING failed to get smmu node: FDT_ERR_NOTFOUND
BootOrder not defined
EFI boot manager: Cannot load any image
Scanning mmc 0:2...
WARNING failed to get smmu node: FDT_ERR_NOTFOUND
WARNING failed to get smmu node: FDT_ERR_NOTFOUND
BootOrder not defined
EFI boot manager: Cannot load any image
=>

> If it not unset, the SError is triggered when to check the magic of the fdt header.
> 
> Thanks,
> Zhiqiang
> 
> > 
> > -michael
BR,
Yousaf