Dear [EMAIL PROTECTED],
In message <[EMAIL PROTECTED]> you wrote:
>
> In my opinion, the serial device should be the first device
> initialized and utilized before all other devices where that
> is possible. For example, it would be very useful to have
This is exactly how U-Boot was designed. However, we try to do this in
C, and we try to support all kinds of hardware to do so.
> serial output while debugging RAM initialization. An early
> serial port prior to U-Boot relocating itself would be very
> useful for porting U-Boot to new boards.
We have that, and always had this as long U-Boot and PPCBoot exist.
> Is the patch submitted clean enough? No, the implementation
The patch itself may be ok, but the concept is broken, and that's why
I reject it.
> I agree that a JTAG debugger is extremely useful for board
> bring-up, but they are very expensive.
Calculate you own time wasted on fruitless attempts to get a board
working times your hourly rate and you get ... enough money for more
than one BDI3000.
> I'm strongly in favor of having some early serial functionality
> whether in the form of simply being able to send output to the
> serial port or having a semi-functional to fully functional shell
> prior to RAM relocation.
But hey, we *do* have this. We just don't have an interactve shell
prompt.
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: [EMAIL PROTECTED]
That Microsoft, the Trabant of the operating system world, may be
glancing over the Berlin Wall at the Audis and BMWs and Mercedes. In
their own universe Trabants and Ladas were mainstream too...
-- Evan Leibovitch
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