[U-Boot] NS16550 Register structure

Pedanekar, Hemant
2010-01-18T14:51:38Z

Hi Wolfgang,

Only 32-bit access is supported for UART MMRs on DM6467 and hence need to use STR/LDR instead of STRB/LDRB.

Thanks
-
Hemant

> -----Original Message-----
> From: Wolfgang Denk [mailto:wd at denx.de]
> Sent: Tuesday, January 05, 2010 3:29 PM
> To: Pedanekar, Hemant
> Cc: u-boot at lists.denx.de; dzu at denx.de
> Subject: Re: [U-Boot] NS16550 Register structure
>
> Dear "Pedanekar, Hemant",
>
> In message <2A3DCF3DA181AD40BDE86A3150B27B6B030959490E@dbde02.ent.ti.com>
> you wrote:
> >
> > Yes, that is not just word-aligned, instead, the Dm6467 UART access need
> to=
> > be "Word LOAD/STORE". Thus, if I use STRB <THR> instead of STR <THR> to
> tr=
> > ansmit a character, it doesn't work.
>
> Please use shorter lines (something like < 70 characters).
>
> Can you please explain why byte I/O does not work for you? Is this a
> hardware problem on your specific board?
>
> Best regards,
>
> Wolfgang Denk
>
> --
> DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel
> HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
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