[MinnowBoard] UART ports configuration issues

[Darren Hart]

On 6/1/15, 12:42 PM, "elinux-MinnowBoard on behalf of Orozco, Edgar Alexis"
<elinux-minnowboard-bounces at lists.elinux.org on behalf of
edgar.alexis.orozco at delphi.com> wrote:

> Hello everybody!
>  
> I am experiencing an issue with UART ports: here¹s the output of setserial ­ag
> /dev/ttyS*
>  
> /dev/ttyS0, Line 0, UART: 16550A, Port: 0x03f8, IRQ: 4
>                 Baud_base: 115200, close_delay: 50, divisor: 0
>                 closing_wait: 3000
>                 Flags: spd_normal skip_test auto_irq
>  
> /dev/ttyS1, Line 1, UART: unknown, Port: 0x02f8, IRQ: 3
>                 Baud_base: 115200, close_delay: 50, divisor: 0
>                 closing_wait: 3000
>                 Flags: spd_normal skip_test auto_irq
>  
> /dev/ttyS2, Line 2, UART: unknown, Port: 0x03e8, IRQ: 4
>                 Baud_base: 115200, close_delay: 50, divisor: 0
>                 closing_wait: 3000
>                 Flags: spd_normal skip_test auto_irq
>  
> /dev/ttyS3, Line 3, UART: unknown, Port: 0x02e8, IRQ: 3
>                 Baud_base: 115200, close_delay: 50, divisor: 0
>                 closing_wait: 3000
>                 Flags: spd_normal auto_irq
>  
> ttyS0 is working OK since I am using it as a serial console.
> I noticed that the dmesg output was commonly showing ³ttySX MMIO at
> 0x<address>². Not anymore!.

These are the standard PNP PC UARTs. The other two use the HSUART driver.
What changed when you started seeing this change?

-- 
Darren Hart
Intel Open Source Technology Center


-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.elinux.org/pipermail/elinux-minnowboard/attachments/20150720/140adc9c/attachment.html>