On 08/12/2013 08:29 PM, Alexandre Courbot wrote: > Trusted Foundations is a TrustZone-based secure monitor for ARM that > can be invoked using a consistent smc-based API on all 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. > diff --git a/Documentation/devicetree/bindings/arm/firmware/tl,trusted-foundations.txt b/Documentation/devicetree/bindings/arm/firmware/tl,trusted-foundations.txt > +Trusted Foundations > + > +Boards that use the Trusted Foundations secure monitor can signal its > +presence by declaring a node compatible with "tl,trusted-foundations" > +(the name and location of the node does not matter). > + > +Required properties: > +- compatible : "tl,trusted-foundations" > +- version : Must contain the version number string of the Trusted Foundation > + firmware. Can the version be queried at run-time from the firmware itself? If not, I wonder if we shouldn't instead encode the version number into the compatible value. Some comments on the exact format of the version property would be useful; from the example I assume it's "%02d.%02d" % (major_ver, minor_ver)? > diff --git a/arch/arm/firmware/Kconfig b/arch/arm/firmware/Kconfig > +config ARCH_SUPPORTS_TRUSTED_FOUNDATIONS > + bool Shouldn't that be "config ARCH_SUPPORTS_FIRMWARE", since presumably in the future there will be more entries in the menu, and hence we want the menu to appear if any of those entries are useful? > + > +menu "Firmware options" > + depends on ARCH_SUPPORTS_TRUSTED_FOUNDATIONS Or perhaps that comment is more appropriate for that "depends". -- To unsubscribe from this list: send the line "unsubscribe linux-tegra" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
