On 12/02/2011 10:34 AM, Paul Gortmaker wrote:
> On 11-12-02 06:30 AM, Alan Cox wrote:
OK, I'll simply change the above to CONFIG_PPC then.
>>>
>>> It does, the bug is in the uart IP which I don't think we ever plan on
>>> fixing, so 32 or 64-bit parts will have it for ever and ever ;)
>>
>> I
On 11-12-02 06:30 AM, Alan Cox wrote:
>>> OK, I'll simply change the above to CONFIG_PPC then.
>>
>> It does, the bug is in the uart IP which I don't think we ever plan on
>> fixing, so 32 or 64-bit parts will have it for ever and ever ;)
>
> It should be runtime selected, there should be no ifde
> > OK, I'll simply change the above to CONFIG_PPC then.
>
> It does, the bug is in the uart IP which I don't think we ever plan on
> fixing, so 32 or 64-bit parts will have it for ever and ever ;)
It should be runtime selected, there should be no ifdefs here.
__
On Thu, Dec 1, 2011 at 7:57 PM, Alan Cox wrote:
>
>> @@ -1553,7 +1554,15 @@ static void serial8250_handle_port(struct
>> uart_8250_port *up)
>> spin_lock_irqsave(&up->port.lock, flags);
>>
>> - status = serial_inp(up, UART_LSR);
>> + /* Workaround for IRQ storm errata on break with F
> @@ -1553,7 +1554,15 @@ static void serial8250_handle_port(struct
> uart_8250_port *up)
> spin_lock_irqsave(&up->port.lock, flags);
>
> - status = serial_inp(up, UART_LSR);
> + /* Workaround for IRQ storm errata on break with Freescale
> 16550 */
> + if (UART_BUG_FSLBK & up->
On Dec 1, 2011, at 6:05 PM, Paul Gortmaker wrote:
> On 11-12-01 06:51 PM, Scott Wood wrote:
>> On 12/01/2011 05:47 PM, Paul Gortmaker wrote:
>>> diff --git a/include/linux/serial_8250.h b/include/linux/serial_8250.h
>>> index 8c660af..b0f4042 100644
>>> --- a/include/linux/serial_8250.h
>>> +++ b
On 11-12-01 06:51 PM, Scott Wood wrote:
> On 12/01/2011 05:47 PM, Paul Gortmaker wrote:
>> diff --git a/include/linux/serial_8250.h b/include/linux/serial_8250.h
>> index 8c660af..b0f4042 100644
>> --- a/include/linux/serial_8250.h
>> +++ b/include/linux/serial_8250.h
>> @@ -18,6 +18,11 @@
>> #def
On 12/01/2011 05:47 PM, Paul Gortmaker wrote:
> diff --git a/include/linux/serial_8250.h b/include/linux/serial_8250.h
> index 8c660af..b0f4042 100644
> --- a/include/linux/serial_8250.h
> +++ b/include/linux/serial_8250.h
> @@ -18,6 +18,11 @@
> #define UART_BUG_TXEN(1 << 1)/* bugg
Sending a break on the SOC UARTs found in some MPC83xx/85xx/86xx
chips seems to cause a short lived IRQ storm (/proc/interrupts
typically shows somewhere between 300 and 1500 events). Unfortunately
this renders SysRQ over the serial console completely inoperable.
The suggested workaround in the e
