RE: NAND BBT corruption on MPC83xx

2011-06-20 Thread Atlant Schmidt
Mike: It is not a permanent damage thing. A read disturb does no permanent damage to the chip but if the read disturb event involves more bits than can be corrected by your ECC code, it can do permanent damage to the *DATA* you've stored in that block. For this reason, a good flash

Re: NAND BBT corruption on MPC83xx

2011-06-20 Thread Matthew L. Creech
On Fri, Jun 17, 2011 at 5:34 PM, Scott Wood scottw...@freescale.com wrote: As for the corruption, could it be degradation from repeated reads of that one page? Could be. I think Mike's theory was that the -1 page_addr sort of wrapped around, and caused us to read in the last block on flash

Re: [PATCH v3 2/2] powerpc: add support for MPIC message register API

2011-06-20 Thread Scott Wood
On Sat, 18 Jun 2011 08:58:53 +1000 Benjamin Herrenschmidt b...@kernel.crashing.org wrote: On Fri, 2011-06-17 at 11:58 -0500, Scott Wood wrote: When did this change from considered an internal implementation issue, and not really an interface to all new interfaces? Interesting blurb...

[PATCH] spi/fsl_spi: fix CPM spi driver

2011-06-20 Thread Holger Brunck
This patch fixes the freescale spi driver for CPM. Without this patch SPI on CPM failed because cpm_muram_alloc_fixed tries to allocate muram in an preserved area. The error reported was: mpc8xxx_spi f0011a80.spi: can't allocate spi parameter ram mpc8xxx_spi: probe of f0011a80.spi failed with

Re: [PATCH] perf_events: Enable idle state tracing for pseries (ppc64)

2011-06-20 Thread deepthi
On Friday 17 June 2011 09:54 AM, Benjamin Herrenschmidt wrote: On Wed, 2011-06-01 at 18:05 +0530, Deepthi Dharwar wrote: Hi, Please find below a patch, which has perf_events added for pseries (ppc64) platform in order to emit the trace required for perf timechart. It essentially enables

Re: [PATCH] perf_events: Enable idle state tracing for pseries (ppc64)

2011-06-20 Thread Benjamin Herrenschmidt
On Mon, 2011-06-20 at 22:48 +0530, deepthi wrote: On Friday 17 June 2011 09:54 AM, Benjamin Herrenschmidt wrote: On Wed, 2011-06-01 at 18:05 +0530, Deepthi Dharwar wrote: Hi, Please find below a patch, which has perf_events added for pseries (ppc64) platform in order to emit the trace

Re: [RFC PATCH V1 1/7] cpuidle: create bootparam cpuidle.off=1

2011-06-20 Thread Trinabh Gupta
On 06/17/2011 09:59 AM, Benjamin Herrenschmidt wrote: On Tue, 2011-06-07 at 21:59 +0530, Trinabh Gupta wrote: From: Len Brownlen.br...@intel.com useful for disabling cpuidle to fall back to architecture-default idle loop cpuidle drivers and governors will fail to register. on x86 they'll