4 Commits

Author	SHA1	Message	Date
Alexandre Courbot	3aae97c8b1	ARM: trusted_foundations: fix compile error on non-SMP ... The setup_max_cpus variable is only defined if CONFIG_SMP is set. Add a preprocessor condition to avoid the following compilation error if CONFIG_SMP is not set: arch/arm/include/asm/trusted_foundations.h: In function 'register_trusted_foundations': arch/arm/include/asm/trusted_foundations.h:57:2: error: 'setup_max_cpus' undeclared (first use in this function) Signed-off-by: Alexandre Courbot <acourbot@nvidia.com> Reported-by: Russell King <rmk+kernel@arm.linux.org.uk> Acked-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de>	2014-05-23 21:28:11 +02:00
Alexandre Courbot	c3af6d6855	ARM: trusted_foundations: fallback when TF support is missing ... When Trusted Foundations is detected as present on the system, but Trusted Foundations support is not built into the kernel, the kernel used to issue a panic very early during boot, leaving little clue to the user as to what is going wrong. It turns out that even without TF support built-in, the kernel can boot on a TF-enabled system provided that SMP and cpuidle are disabled. This patch does this and continue booting on one CPU, leaving the user with a usable (however degraded) system. Signed-off-by: Alexandre Courbot <acourbot@nvidia.com> Acked-by: Olof Johansson <olof@lixom.net> Signed-off-by: Stephen Warren <swarren@nvidia.com>	2014-02-18 13:46:32 -07:00
Alexandre Courbot	a553b7f536	ARM: trusted_foundations: fix vendor prefix typos ... of_register_trusted_foundations() and the firmware Kconfig used the wrong vendor prefix for Trusted Logic Mobility. Signed-off-by: Alexandre Courbot <acourbot@nvidia.com> Acked-by: Olof Johansson <olof@lixom.net> Signed-off-by: Stephen Warren <swarren@nvidia.com>	2014-02-18 13:46:02 -07:00
Alexandre Courbot	d9a1beaa10	ARM: add basic support for Trusted Foundations ... Trusted Foundations is a TrustZone-based secure monitor for ARM that can be invoked using the same SMC-based API on supported platforms. This patch adds initial basic support for Trusted Foundations using the ARM firmware API. Current features are limited to the ability to boot secondary processors. Note: The API followed by Trusted Foundations does *not* follow the SMC calling conventions. It has nothing to do with PSCI neither and is only relevant to devices that use Trusted Foundations (like most Tegra-based retail devices). Signed-off-by: Alexandre Courbot <acourbot@nvidia.com> Reviewed-by: Tomasz Figa <t.figa@samsung.com> Reviewed-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Stephen Warren <swarren@nvidia.com>	2013-12-13 12:50:30 -07:00