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path: root/arch/arm/mach-at91/sam_secure.c
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2022-07-20ARM: at91: add sam_linux_is_optee_available() functionClément Léger
Add sam_linux_is_optee_available() which allows to know if OP-TEE is available for Linux. This function is used by code which needs to know if we running with OP-TEE available or not. Signed-off-by: Clément Léger <clement.leger@bootlin.com> [claudiu.beznea: edit commit title and message, renamed sam_linux_is_in_normal_world() into sam_linux_is_optee_available()] Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com> Link: https://lore.kernel.org/r/20220606145701.185552-2-clement.leger@bootlin.com
2022-05-12ARM: at91: add code to handle secure callsClément Léger
Since OP-TEE now has a more complete support for sama5d2, add necessary code to perform SMC calls. The detection of OP-TEE is based on a specific device-tree node path (/firmware/optee) such has done by some other SoC. A check is added to avoid doing SMC calls without having OP-TEE. Signed-off-by: Clément Léger <clement.leger@bootlin.com> Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com>