On 18 February 2011 12:35, Santosh Shilimkar <[email protected]> wrote: > PL310 implements the Clean & Invalidate by Way L2 cache maintenance > operation (offset 0x7FC). This operation runs in background so that > PL310 can handle normal accesses while it is in progress. Under very > rare circumstances, due to this erratum, write data can be lost when > PL310 treats a cacheable write transaction during a Clean & Invalidate > by Way operation. > > Workaround: > Disable Write-Back and Cache Linefill (Debug Control Register) > Clean & Invalidate by Way (0x7FC) > Re-enable Write-Back and Cache Linefill (Debug Control Register) > > This patch also removes any OMAP dependency on PL310 Errata's > > Signed-off-by: Santosh Shilimkar <[email protected]>
Acked-by: Catalin Marinas <[email protected]> -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
