Re: [U-Boot] NS16550 Register structure

2010-01-28 Thread Wolfgang Denk
Dear Hemant, In message <2a3dcf3da181ad40bde86a3150b27b6b03097ec...@dbde02.ent.ti.com> you wrote: > > Any suggestions on this? Well, the best solution would obviously be to fix the hardware... > > There is no abort on ARM and also nothing gets to the console when UART > > register is accessed.

Re: [U-Boot] NS16550 Register structure

2010-01-28 Thread Pedanekar, Hemant
Hi Detlev, Wolfgang, Any suggestions on this? Thanks - Hemant > -Original Message- > From: Pedanekar, Hemant > Sent: Thursday, January 21, 2010 4:34 PM > To: 'Detlev Zundel' > Cc: Wolfgang Denk; u-boot@lists.denx.de > Subject: RE: [U-Boot] NS16550 Regis

Re: [U-Boot] NS16550 Register structure

2010-01-21 Thread Pedanekar, Hemant
> -Original Message- > From: Detlev Zundel [mailto:d...@denx.de] > Sent: Tuesday, January 19, 2010 6:34 PM > To: Pedanekar, Hemant > Cc: Wolfgang Denk; u-boot@lists.denx.de > Subject: Re: [U-Boot] NS16550 Register structure > > Hi Hemant, > > > Only 32-bit access is

Re: [U-Boot] NS16550 Register structure

2010-01-19 Thread Detlev Zundel
Hi Hemant, > Only 32-bit access is supported for UART MMRs on DM6467 and hence need > to use STR/LDR instead of STRB/LDRB. Argh. Why do hw people always think software can fix anything? So out of interest - do you get a bus fault or what? Maybe we can fixup such non-aligned accesses outside of

Re: [U-Boot] NS16550 Register structure

2010-01-18 Thread Pedanekar, Hemant
> Cc: u-boot@lists.denx.de; d...@denx.de > Subject: Re: [U-Boot] NS16550 Register structure > > Dear "Pedanekar, Hemant", > > In message <2a3dcf3da181ad40bde86a3150b27b6b0309594...@dbde02.ent.ti.com> > you wrote: > > > > Yes, that is not just word-alig

Re: [U-Boot] NS16550 Register structure

2010-01-05 Thread Wolfgang Denk
Dear "Pedanekar, Hemant", In message <2a3dcf3da181ad40bde86a3150b27b6b0309594...@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 instead of STR to tr= > ansmit a character, it doesn't wo

Re: [U-Boot] NS16550 Register structure

2010-01-05 Thread Pedanekar, Hemant
- Hemant > -Original Message- > From: Wolfgang Denk [mailto:w...@denx.de] > Sent: Tuesday, January 05, 2010 1:05 PM > To: Pedanekar, Hemant > Cc: u-boot@lists.denx.de; d...@denx.de > Subject: Re: [U-Boot] NS16550 Register structure > > Dear "Pedanekar, Hemant"

Re: [U-Boot] NS16550 Register structure

2010-01-04 Thread Wolfgang Denk
Dear "Pedanekar, Hemant", In message <2a3dcf3da181ad40bde86a3150b27b6b03094b2...@dbde02.ent.ti.com> you wrote: > > I have observed that in the recent commit (file include/ns16550.h), the > ns16550 UART register structure declaration is changed so that irrespective > of the CONFIG_SYS_NS16550_R

[U-Boot] NS16550 Register structure

2010-01-04 Thread Pedanekar, Hemant
Hello, I have observed that in the recent commit (file include/ns16550.h), the ns16550 UART register structure declaration is changed so that irrespective of the CONFIG_SYS_NS16550_REG_SIZE setting the register access will be done at byte level. This crates problem when UART space access is r