mips : How to run barebox by bootm in ram(u-boot command)?

mips : How to run barebox by bootm in ram(u-boot command)?

[duhuanpeng]

Hello! How to run Barebox from ram now?

I have a board with 64MiB ram and 16MiB flash, flash it to the first sector
by
original u-boot, maybe brick the board. Debrick is difficult due to limited
tools.

So, I want to run this in ram. And my u-boot *don't* have the "go" command.
I have to use bootm command to run Barebox.

- - - - - -
mkimage -A mips -O linux -T kernel -C none -a 80060000 -e 80060000 -n
'barebox-tp-link' -d barebox.bin uImage
tftpboot 0x81000000 uImage
bootm 0x81000000
- - - -
I have try these above, but no luck.

Regards,
duhuanpeng



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Re: mips : How to run barebox by bootm in ram(u-boot command)?

[Oleksij Rempel]

Hi,

On 19.08.19 15:40, duhuanpeng wrote:
> Hello! How to run Barebox from ram now?
> 
> I have a board with 64MiB ram and 16MiB flash, flash it to the first sector
> by
> original u-boot, maybe brick the board. Debrick is difficult due to limited
> tools.
> 
> So, I want to run this in ram. And my u-boot *don't* have the "go" command.
> I have to use bootm command to run Barebox.
> 
> - - - - - -
> mkimage -A mips -O linux -T kernel -C none -a 80060000 -e 80060000 -n
> 'barebox-tp-link' -d barebox.bin uImage
> tftpboot 0x81000000 uImage
> bootm 0x81000000
> - - - -
> I have try these above, but no luck.

Please, try 0xa1000000 instead of 0x81000000-

-- 
Pengutronix e.K.                           |                             |
Industrial Linux Solutions                 | http://www.pengutronix.de/  |
Peiner Str. 6-8, 31137 Hildesheim, Germany | Phone: +49-5121-206917-0    |
Amtsgericht Hildesheim, HRA 2686           | Fax:   +49-5121-206917-5555 |

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Re: mips : How to run barebox by bootm in ram(u-boot command)?

[Ahmad Fatoum]

Hello,

(replying here because I don't have the original mail)

On 8/29/19 3:03 PM, Oleksij Rempel wrote:
> Hi,
> 
> On 19.08.19 15:40, duhuanpeng wrote:
>> Hello! How to run Barebox from ram now?
>>
>> I have a board with 64MiB ram and 16MiB flash, flash it to the first sector
>> by
>> original u-boot, maybe brick the board. Debrick is difficult due to limited
>> tools.
>>
>> So, I want to run this in ram. And my u-boot *don't* have the "go" command.
>> I have to use bootm command to run Barebox.

Note you don't want to use the go command, because it doesn't properly
shutdown U-Boot. This is problematic if your U-Boot configures memory caches
or devices employing DMA. 

>>
>> - - - - - -
>> mkimage -A mips -O linux -T kernel -C none -a 80060000 -e 80060000 -n
>> 'barebox-tp-link' -d barebox.bin uImage
>> tftpboot 0x81000000 uImage
>> bootm 0x81000000
>> - - - -
>> I have try these above, but no luck.
> 
> Please, try 0xa1000000 instead of 0x81000000-
> 

-- 
Pengutronix e.K.                           |                             |
Industrial Linux Solutions                 | http://www.pengutronix.de/  |
Peiner Str. 6-8, 31137 Hildesheim, Germany | Phone: +49-5121-206917-0    |
Amtsgericht Hildesheim, HRA 2686           | Fax:   +49-5121-206917-5555 |

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