* Meaning of BSP and LSP
[not found] <20041013191012.47D9A2BDD3@ozlabs.org>
@ 2004-10-13 19:39 ` Sam Song
2004-10-13 20:03 ` Wolfgang Denk
2004-10-14 8:25 ` Marius Groeger
0 siblings, 2 replies; 5+ messages in thread
From: Sam Song @ 2004-10-13 19:39 UTC (permalink / raw)
To: linuxppc-embedded
Hi all,
I'd like to make sure about the meaning of BSP and
LSP. There is sth unclear in my mind, I am afraid.
IMHO, BSP includes Board's Hardware Scheme and Boot
Loader Code in Binary format or Source code. LSP
should be composed of Development Kit like ELDK and
Linux Kernel Source for special Board. I am right?
=====
Best regards,
Sam
_________________________________________________________
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^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: Meaning of BSP and LSP
2004-10-13 19:39 ` Meaning of BSP and LSP Sam Song
@ 2004-10-13 20:03 ` Wolfgang Denk
2004-10-13 20:17 ` Sam Song
2004-10-14 8:25 ` Marius Groeger
1 sibling, 1 reply; 5+ messages in thread
From: Wolfgang Denk @ 2004-10-13 20:03 UTC (permalink / raw)
To: Sam Song; +Cc: linuxppc-embedded
In message <20041013193959.57540.qmail@web15605•mail.cnb.yahoo.com> you wrote:
>
> I'd like to make sure about the meaning of BSP and
> LSP. There is sth unclear in my mind, I am afraid.
Don't worry. These terms are not clearly defined at all.
> IMHO, BSP includes Board's Hardware Scheme and Boot
> Loader Code in Binary format or Source code. LSP
> should be composed of Development Kit like ELDK and
> Linux Kernel Source for special Board. I am right?
No. Both BSP and LSP are terms used by peple who try to turn software
into products that can be sold. They have vendor specific meanings.
Some vendors may bundle boot loader code with thei BSP, others don't.
Only if you buy the BSP from a hardware manufacturer there is a
chance that you will receive board schematics with it; etc. etc. And
LSP is just another marketing term to hide that somebody tries to
sell free software the same way other RTOS vendors sell BSP's. If it
includes tools or not depends again on the vendor.
My recommendation: don't care about these terms.
Best regards,
Wolfgang Denk
--
Software Engineering: Embedded and Realtime Systems, Embedded Linux
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd@denx•de
The management question ... is not _whether_ to build a pilot system
and throw it away. You _will_ do that. The only question is whether
to plan in advance to build a throwaway, or to promise to deliver the
throwaway to customers. - Fred Brooks, "The Mythical Man Month"
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: Meaning of BSP and LSP
2004-10-13 20:03 ` Wolfgang Denk
@ 2004-10-13 20:17 ` Sam Song
0 siblings, 0 replies; 5+ messages in thread
From: Sam Song @ 2004-10-13 20:17 UTC (permalink / raw)
To: Wolfgang Denk; +Cc: linuxppc-embedded
Wolfgang Denk <wd@denx•de> wrote：
> Don't worry. These terms are not clearly defined at
> all.
It turned to be like this. No wonder I didn't make it
clear.:-)
> My recommendation: don't care about these terms.
OK, after taking your explanation, I wouldn't be
confused by a salesman at least.
Thanks very much.
=====
Best regards,
Sam
_________________________________________________________
Do You Yahoo!?
150万曲MP3疯狂搜，带您闯入音乐殿堂
http://music.yisou.com/
美女明星应有尽有，搜遍美图、艳图和酷图
http://image.yisou.com
1G就是1000兆，雅虎电邮自助扩容！
http://cn.rd.yahoo.com/mail_cn/tag/1g/*http://cn.mail.yahoo.com/event/mail_1g/
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: Meaning of BSP and LSP
2004-10-13 19:39 ` Meaning of BSP and LSP Sam Song
2004-10-13 20:03 ` Wolfgang Denk
@ 2004-10-14 8:25 ` Marius Groeger
2004-10-14 9:27 ` Sam Song
1 sibling, 1 reply; 5+ messages in thread
From: Marius Groeger @ 2004-10-14 8:25 UTC (permalink / raw)
To: Sam Song; +Cc: linuxppc-embedded
On Thu, 14 Oct 2004, Sam Song wrote:
> I'd like to make sure about the meaning of BSP and
> LSP. There is sth unclear in my mind, I am afraid.
>From what I know, the term BSP was coined as an acronym for "Board
Support Package" in pre-Linux days. To me it is most familiar in
conjunction with Embdedded (RT)OSes such as LynxOS, vxWorks, or pSOS
and many others. These systems have a more or less clearly defined BSP
API, meaning that a port to a new platform is a well defined process.
Grossly simplified, the BSP provider must implement a number of
support functions which make hardware resources (interrupts, memory
and so forth) available to the common kernel code. Note also that this
is valid across architectures (PPC, ARM, X86...).
Linux still doesn't really offer something like this. Some people may
argue that things are actually improving, but most people probably
just don't care. The simplest reason I can think of for that is that
there were always enough knowledgable people to do the hard porting
work. Also, obviously, Linux doesn't care for commercial issues such
like wanting to keep the common kernel code closed.
"LSP" is a term introduced by MontaVista, AFAIR, so maybe one of the
MV folks on this list wants to elaborate on this?
Bottom line: BSP is an OS/Vendor specific term to capture the software
components related to a specific board. It is a useful handle in
project discussions, provided that all participants use the same
notion.
Regards,
Marius
--
Marius Groeger <mgroeger@sysgo•com>
SYSGO AG Embedded and Real-Time Software
Voice: +49 6136 9948 0 FAX: +49 6136 9948 10
www.sysgo.com | www.elinos.com | www.osek.de | www.imerva.com
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: Meaning of BSP and LSP
2004-10-14 8:25 ` Marius Groeger
@ 2004-10-14 9:27 ` Sam Song
0 siblings, 0 replies; 5+ messages in thread
From: Sam Song @ 2004-10-14 9:27 UTC (permalink / raw)
To: Marius Groeger; +Cc: linuxppc-embedded
Marius Groeger <mgroeger@sysgo•com> wrote：
> From what I know, the term BSP was coined as an
> acronym for "Board Support Package" in pre-Linux
> days. To me it is most familiar in
So that day the meaning of BSP was clear enough.
> "LSP" is a term introduced by MontaVista, AFAIR, so
> maybe one of the MV folks on this list wants to
> elaborate on this?
I also got the term "LSP" from MV.
> Bottom line: BSP is an OS/Vendor specific term to
> capture the software components related to a
> specific board. It is a useful handle in
> project discussions, provided that all participants
> use the same notion.
See what's EP view on "BSP".
http://www.embeddedplanet.com/products/bsp_linux.asp
It seems that BSP > = LSP.
Just as Wolfgang said, the meaning varys in different
vendors. But at least "LSP" by MV doesn't include
hardware scheme and boot loader code, I think.
"LSP" is a special term defined by MV. So just to
follow the meaning as MV does.
Thanks for your nice comment on this topic.
=====
Best regards,
Sam
_________________________________________________________
Do You Yahoo!?
150万曲MP3疯狂搜，带您闯入音乐殿堂
http://music.yisou.com/
美女明星应有尽有，搜遍美图、艳图和酷图
http://image.yisou.com
1G就是1000兆，雅虎电邮自助扩容！
http://cn.rd.yahoo.com/mail_cn/tag/1g/*http://cn.mail.yahoo.com/event/mail_1g/
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[not found] <20041013191012.47D9A2BDD3@ozlabs.org>
2004-10-13 19:39 ` Meaning of BSP and LSP Sam Song
2004-10-13 20:03 ` Wolfgang Denk
2004-10-13 20:17 ` Sam Song
2004-10-14 8:25 ` Marius Groeger
2004-10-14 9:27 ` Sam Song
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