[U-Boot] U-Boot stuck after relocation attempt on MX51 board

[Benoît Thébaudeau]

Dear Dave Kucharczyk,

On Wed, Feb 25, 2015 at 3:19 AM, DaveKucharczyk
<david.kucharczyk at gmail.com> wrote:
> I'm porting U-Boot for an MX51 based board.
>
> This is the boot sequence with debug on...
>
> U-Boot 2014.07-svn10 (Feb 24 2015 - 15:49:39)
>
> initcall: 9ff85820
> U-Boot code: 9FF80000 -> 9FFA6824  BSS: -> 9FFD944C
> initcall: 9ff8118c
> CPU:   Freescale i.MX51 rev3.0 at 800 MHz
> initcall: 9ff858ac
> I2C:   ready
> initcall: 9ff85894
> DRAM:  initcall: 9ff81ff4
> initcall: 9ff85a04
> Monitor len: 0005944C
> Ram size: 10000000
> Ram top: A0000000
> initcall: 9ff855b0
> initcall: 9ff857c8
> TLB table from 9fff0000 to 9fff4000
> initcall: 9ff855c8
> initcall: 9ff8577c
> Reserving 357k for U-Boot at: 9ff96000
> initcall: 9ff85750
> Reserving 1280k for malloc() at: 9fe56000
> initcall: 9ff85850
> Reserving 88 Bytes for Board Info at: 9fe55fa8
> initcall: 9ff855d0
> initcall: 9ff8571c
> Reserving 216 Bytes for Global Data at: 9fe55ed0
> initcall: 9ff856b8
> initcall: 9ff855e4
> initcall: 9ff859ec
> initcall: 9ff85948
>
> RAM Configuration:
> Bank #0: 90000000 256 MiB
>
> DRAM:  256 MiB
> initcall: 9ff8569c
> New Stack Pointer is: 9fe55eb0
> initcall: 9ff85618
> initcall: 9ff85648
> Relocation Offset is: 00016000
> Relocating to 9ff96000, new gd at 9fe55ed0, sp at 9fe55eb0
>
> And that's where it hangs and resets in a continuous loop.
>
> I confirmed that the entire init_sequence completed in board_f.c, but never
> makes it to board_r.c
>
> So...according to ./arch/arm/lib/crt0.S ...
>
> /* assembly code */
>
> board_init_f          <--we make it out of here
>
> /* assembly code */   <-- stuck somewhere in here
>
> relocate_code           <-- stuck somewhere in here
>
> /* assembly code */   <-- stuck somewhere in here
>
> board_init_r          <--we never make it here
>
> I can't sprinkle any debug statements where it's stuck because it's all
> assembly. Before I break out the BDI tomorrow does anyone have any ideas?
>
> BTW it works on our 512MB board, but not the 256MB board. Thanks.

The following needs to be added for i.MX51 and i.MX53 too:
http://lists.denx.de/pipermail/u-boot/2015-February/205849.html

This should fix your issue.

Best regards,
Benoît