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SubjectRe: [PATCH 3/3] 8250: add workaround for MPC8[356]xx UART break IRQ storm
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 @@
>> #define UART_BUG_TXEN (1 << 1) /* buggy TX IIR status */
>> #define UART_BUG_NOMSR (1 << 2) /* buggy MSR status bits (Au1x00) */
>> #define UART_BUG_THRE (1 << 3) /* buggy THRE reassertion */
>> +#ifdef CONFIG_PPC32
>> +#define UART_BUG_FSLBK (1 << 4) /* buggy FSL break IRQ storm */
>> +#else /* help GCC optimize away IRQ handler errata code for ARCH != PPC32 */
>> +#define UART_BUG_FSLBK 0
>> +#endif
>
> I believe this bug still exists on our 64-bit chips.

OK, I'll simply change the above to CONFIG_PPC then.

Thanks,
Paul.

>
> -Scott
>


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