diff options
Diffstat (limited to 'arch/arm/Kconfig')
| -rw-r--r-- | arch/arm/Kconfig | 51 |
1 files changed, 0 insertions, 51 deletions
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index db3c5414223e..c9d7196fd0bd 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -1230,19 +1230,6 @@ config ARM_ERRATA_742231 register of the Cortex-A9 which reduces the linefill issuing capabilities of the processor. -config PL310_ERRATA_588369 - bool "PL310 errata: Clean & Invalidate maintenance operations do not invalidate clean lines" - depends on CACHE_L2X0 - help - The PL310 L2 cache controller implements three types of Clean & - Invalidate maintenance operations: by Physical Address - (offset 0x7F0), by Index/Way (0x7F8) and by Way (0x7FC). - They are architecturally defined to behave as the execution of a - clean operation followed immediately by an invalidate operation, - both performing to the same memory location. This functionality - is not correctly implemented in PL310 as clean lines are not - invalidated as a result of these operations. - config ARM_ERRATA_643719 bool "ARM errata: LoUIS bit field in CLIDR register is incorrect" depends on CPU_V7 && SMP @@ -1265,17 +1252,6 @@ config ARM_ERRATA_720789 tables. The workaround changes the TLB flushing routines to invalidate entries regardless of the ASID. -config PL310_ERRATA_727915 - bool "PL310 errata: Background Clean & Invalidate by Way operation can cause data corruption" - depends on CACHE_L2X0 - help - 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. - config ARM_ERRATA_743622 bool "ARM errata: Faulty hazard checking in the Store Buffer may lead to data corruption" depends on CPU_V7 @@ -1301,21 +1277,6 @@ config ARM_ERRATA_751472 operation is received by a CPU before the ICIALLUIS has completed, potentially leading to corrupted entries in the cache or TLB. -config PL310_ERRATA_753970 - bool "PL310 errata: cache sync operation may be faulty" - depends on CACHE_PL310 - help - This option enables the workaround for the 753970 PL310 (r3p0) erratum. - - Under some condition the effect of cache sync operation on - the store buffer still remains when the operation completes. - This means that the store buffer is always asked to drain and - this prevents it from merging any further writes. The workaround - is to replace the normal offset of cache sync operation (0x730) - by another offset targeting an unmapped PL310 register 0x740. - This has the same effect as the cache sync operation: store buffer - drain and waiting for all buffers empty. - config ARM_ERRATA_754322 bool "ARM errata: possible faulty MMU translations following an ASID switch" depends on CPU_V7 @@ -1364,18 +1325,6 @@ config ARM_ERRATA_764369 relevant cache maintenance functions and sets a specific bit in the diagnostic control register of the SCU. -config PL310_ERRATA_769419 - bool "PL310 errata: no automatic Store Buffer drain" - depends on CACHE_L2X0 - help - On revisions of the PL310 prior to r3p2, the Store Buffer does - not automatically drain. This can cause normal, non-cacheable - writes to be retained when the memory system is idle, leading - to suboptimal I/O performance for drivers using coherent DMA. - This option adds a write barrier to the cpu_idle loop so that, - on systems with an outer cache, the store buffer is drained - explicitly. - config ARM_ERRATA_775420 bool "ARM errata: A data cache maintenance operation which aborts, might lead to deadlock" depends on CPU_V7 |