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Groups > linux.kernel > #1537612
| From | Alexandre Belloni <alexandre.belloni@free-electrons.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [PATCH 1/2] ARM: dts: at91: sama5d4: change DMA allocation for secure peripherals |
| Date | 2016-12-07 10:00 +0100 |
| Message-ID | <sLGf0-6eS-9@gated-at.bofh.it> (permalink) |
| References | <sJh1n-BB-9@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
On 30/11/2016 at 18:36:29 +0100, Nicolas Ferre wrote : > Some peripherals are "Programmable Secure" but left as "Secure" by default. > If tried to be connected to Non-Secure DMA controller, the possibility to > leak secure data is prevented so using these peripherals with DMA1 is not > possible with this default configuration (MATRIX_SPSELR registers setup by > bootloader). > Move them to DMA0 which is an "Always-Secure" DMA controller. > > Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com> > --- > arch/arm/boot/dts/sama5d4.dtsi | 16 ++++++++-------- > 1 file changed, 8 insertions(+), 8 deletions(-) > All applied, thanks. -- Alexandre Belloni, Free Electrons Embedded Linux and Kernel engineering http://free-electrons.com
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[PATCH 1/2] ARM: dts: at91: sama5d4: change DMA allocation for secure peripherals Nicolas Ferre <nicolas.ferre@atmel.com> - 2016-11-30 18:40 +0100 Re: [PATCH 1/2] ARM: dts: at91: sama5d4: change DMA allocation for secure peripherals Alexandre Belloni <alexandre.belloni@free-electrons.com> - 2016-12-07 10:00 +0100
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