Re: [ECOS] About iPAQ H3870

[Jonathan Larmour <jifl at eCosCentric dot com>]

Gary D. Thomas wrote:
> On Wed, 2003-04-23 at 11:24, Sung-Nan Yao wrote:
>
> > Hi,
> > After tracing the Linux code for H3800,
> > I found the memory mapped I/O between the iPAQ H3800 and
> > iPAQ H6000 is different.
> > So I think some code in eCos won`t work on H3870.
> >
> > For example,
> > the RS232_ON is different between them.
> >
> > In linux,
> > #define H3800_ASIC1_GPIO_OUT    0x49001e68
> > #define GPIO1_RS232_ON          (1  << 2)
> >
> > In eCos,
> > #define EGPIOBase               0x49000000
> > #define EGPIO_BITSY_RS232_ON    (1  << 7)
> >
> > In InitUART3 macro in eCos,it initializes the UART3.
> > In the end of the macro,it turns on the RS232_ON by setting the EGPIOBase.
> > But in the linux,it sets the H3800_ASIC1_GPIO_OUT.
> >
> > So I change the EGPIOBase to 0x49001e68 and
> > EGPIO_BITSY_RS232_ON to (1  << 7).
> > In the test on my H3870,the Serial Port can work.
> >
> > Does anyone find the problem or do the porting?
>
>
> As far as I know, no one has ever tried to get eCos/RedBoot running on
> the 3870.

Obviously if this is the only change required, and Sung-Nan can verify 
this, then we want to know so we can add this support! Sung-Nan?

Jifl
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