[U-Boot-Users] Hi, friends, the question about the u-boot and device tree?

郭劲 guojin02 at tsinghua.org.cn
Fri Mar 14 12:40:42 EST 2008


I¡¡made follow define on my MPC8360EMDS.h file. Is it enough? The uboot still did
not fill the zero frequency on dtb. I think the ft_cpu_setup and ft_board_setup
function have been run.

/* pass open firmware flat tree */
#define CONFIG_OF_FLAT_TREE	         1
/* maximum size of the flat tree (8K) */
#define OF_FLAT_TREE_MAX_SIZE	8192

>From: "Grant Likely" <grant.likely at secretlab.ca>
>To: "¹ù¾¢" <guojin02 at tsinghua.org.cn>
>Subject: Re: [U-Boot-Users] Hi, friends, the question about the u-boot and device
>Date:Thu, 13 Mar 2008 13:21:35 -0600
>On Thu, Mar 13, 2008 at 9:31 AM, ¹ù¾¢ <guojin02 at tsinghua.org.cn> wrote:
>> Hi,friends,
>>  I make all the frequency(timebase-frequency;bus-frequency;clock-frequency)
>>  on device tree file equal to zero, I think those frequency will filled by
>>  during bootm, but in fact, the u-boot did not fill any frequency. after
>>  crashed. Why?
>>  Why so many document point out that the zero value will be filled by u-boot?
>In most cases it will assuming that your u-boot board port is
>configured to fill in those values.  You need to make sure that the
>ft_board_setup function is getting called by bootm and that it fills
>in those properties.
>Grant Likely, B.Sc., P.Eng.
>Secret Lab Technologies Ltd.

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