[U-Boot] Common u-boot image for e300 and e500v2
Is it possible -- and prudent -- to use a single u-boot binary image for two similar boards, one based on an e300 core and the other on an e500v2 core?
My guess is that it is not possible, but I was surprised to see that the e500v2-targeted toolchain did build the kernel for the e300 board just fine.
Would love to hear the technical nuances involved with this...
-- Johns
Dear Johns Daniel,
In message ba5d9360901230710s69788c82hceed75a37984d2cb@mail.gmail.com you wrote:
Is it possible -- and prudent -- to use a single u-boot binary image for two similar boards, one based on an e300 core and the other on an e500v2 core?
No, this is not possible (at least not with reasonable efofort and resonable code).
My guess is that it is not possible, but I was surprised to see that the e500v2-targeted toolchain did build the kernel for the e300 board just fine.
That's not surprise. When testing, I build U-Boot for *all* PowerPC systems with the same toolchain, usually using a ppc_8xx- or ppc_4xx- configuration. All these images buil without problems, and more, they even run fine on the target systems. U-Boot usually does not include any code which depends on such specific CPU features.
Best regards,
Wolfgang Denk
Thank you... answers my question perfectly.
-- Johns
On Fri, Jan 23, 2009 at 9:22 AM, Wolfgang Denk wd@denx.de wrote:
Dear Johns Daniel,
In message ba5d9360901230710s69788c82hceed75a37984d2cb@mail.gmail.com you wrote:
Is it possible -- and prudent -- to use a single u-boot binary image for two similar boards, one based on an e300 core and the other on an e500v2 core?
No, this is not possible (at least not with reasonable efofort and resonable code).
My guess is that it is not possible, but I was surprised to see that the e500v2-targeted toolchain did build the kernel for the e300 board just fine.
That's not surprise. When testing, I build U-Boot for *all* PowerPC systems with the same toolchain, usually using a ppc_8xx- or ppc_4xx- configuration. All these images buil without problems, and more, they even run fine on the target systems. U-Boot usually does not include any code which depends on such specific CPU features.
Best regards,
Wolfgang Denk
-- DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd@denx.de "One thing they don't tell you about doing experimental physics is that sometimes you must work under adverse conditions... like a state of sheer terror." - W. K. Hartmann
participants (2)
-
Johns Daniel -
Wolfgang Denk