Hi Heiko, Fabio, > -----Original Message----- > From: Heiko Schocher <h...@denx.de> > Sent: Monday, November 11, 2024 6:56 AM > To: Fabio Estevam <feste...@gmail.com> > Cc: U-Boot Mailing List <u-boot@lists.denx.de>; Leto, Enrico (SI B PRO TI EAC > CCP) <enrico.l...@siemens.com>; Schweizer, Walter (SI B PRO TI EAC CCP) > <walter.schwei...@siemens.com>; Sverdlin, Alexander (SI B PRO TI EAC CCP) > <alexander.sverd...@siemens.com>; Anatolij Gustschin <ag...@denx.de>; > Simon Glass <s...@chromium.org>; Tom Rini <tr...@konsulko.com> > Subject: Re: [PATCH v1 20/22] siemens: add ddr full memory test > > Hello Fabio, > > On 09.11.24 13:06, Fabio Estevam wrote: > > Hi Heiko, > > > > On Fri, Nov 8, 2024 at 2:24 AM Heiko Schocher <h...@denx.de> wrote: > >> > >> Add siemens specific memory test. Enable it through Kconfig option > >> SPL_CMT. > >> The test is required from our HW team. It runs over temperature > >> during many days: > >> * must run indefinitively through the whole DDR area > >> * must write/read/check all values > > > > Isn't it better to run a utility in Linux like memtester for this purpose? > > @Enrico: Could you answer? >
The test is a request from our management and defined from our HW team to make an internal certification of the DDR component we use. The test must run over the whole DDR area. It cannot be placed and run from DDR itself but from internal RAM. u-boot and linux are too large to take place in the internal RAM. Alternative like to run the test on 99% of the DDR area was not accepted. > bye, > Heiko > -- > DENX Software Engineering GmbH, Managing Director: Erika Unter > HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany > Phone: +49-8142-66989-52 Fax: +49-8142-66989-80 Email: h...@denx.de
