[PATCH] cmd: mem: Remove CONFIG_SYS_MEMTEST_SCRATCH mapping

[Michal Simek]

On 07. 05. 20 5:33, Heiko Schocher wrote:
> Hello Michal,
> 
> Am 04.05.2020 um 13:54 schrieb Michal Simek:
>> There is no real need to exactly define space for saving patterns for
>> alternate memory test. It is much easier to allocate space on the
>> stack and
>> use it instead of trying to find out space where pattern should be saved.
>>
>> For example if you want to test the whole DDR memory you can't save
>> patter
>> to DDR and you need to find it out. On Xilinx devices DDR or OCM
>> addresses
>> were chosen but that means that OCM needs to be mapped and U-Boot has
>> access permission there.
>>
>> It is easier to remove this limitation and simply save it on stack
>> because
>> it is very clear that memory test can't rewrite U-Boot and U-Boot has
>> also
>> full access to memory where runs from.
>>
>> Signed-off-by: Michal Simek <michal.simek at xilinx.com>
>> ---
>>
>>   README                               | 4 ----
>>   cmd/mem.c                            | 9 ++-------
>>   include/configs/MigoR.h              | 1 -
>>   include/configs/advantech_dms-ba16.h | 1 -
>>   include/configs/apalis_imx6.h        | 1 -
>>   include/configs/aristainetos2.h      | 1 -
>>   include/configs/armadillo-800eva.h   | 1 -
>>   include/configs/blanche.h            | 1 -
>>   include/configs/cgtqmx6eval.h        | 1 -
>>   include/configs/colibri_imx6.h       | 1 -
>>   include/configs/dh_imx6.h            | 1 -
>>   include/configs/el6x_common.h        | 1 -
>>   include/configs/embestmx6boards.h    | 1 -
>>   include/configs/ge_bx50v3.h          | 1 -
>>   include/configs/gw_ventana.h         | 1 -
>>   include/configs/imx6_logic.h         | 1 -
>>   include/configs/kzm9g.h              | 1 -
>>   include/configs/mx6sabre_common.h    | 1 -
>>   include/configs/nitrogen6x.h         | 1 -
>>   include/configs/presidio_asic.h      | 1 -
>>   include/configs/sh7752evb.h          | 1 -
>>   include/configs/sh7753evb.h          | 1 -
>>   include/configs/sh7757lcr.h          | 1 -
>>   include/configs/stm32mp1.h           | 1 -
>>   include/configs/tao3530.h            | 1 -
>>   include/configs/tricorder.h          | 1 -
>>   include/configs/xilinx_versal.h      | 1 -
>>   include/configs/xilinx_versal_mini.h | 1 -
>>   include/configs/xilinx_zynqmp.h      | 4 ----
>>   include/configs/xilinx_zynqmp_mini.h | 1 -
>>   include/configs/xilinx_zynqmp_r5.h   | 1 -
>>   scripts/config_whitelist.txt         | 1 -
>>   32 files changed, 2 insertions(+), 44 deletions(-)
> 
> Hmm.. I think this is from old powerpc times, but I do not see a
> powerpc board in the list, so this makes sense.

And was there any reason to setup specific address on PPC for saving
test pattern?

Thanks,
Michal