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7b4c140514
This patch adds watchdog support on ARM platforms (FVP and Juno). A secure instance of SP805 is used as Trusted Watchdog. It is entirely managed in BL1, being enabled in the early platform setup hook and disabled in the exit hook. By default, the watchdog is enabled in every build (even when TBB is disabled). A new ARM platform specific build option `ARM_DISABLE_TRUSTED_WDOG` has been introduced to allow the user to disable the watchdog at build time. This feature may be used for testing or debugging purposes. Specific error handlers for Juno and FVP are also provided in this patch. These handlers will be called after an image load or authentication error. On FVP, the Table of Contents (ToC) in the FIP is erased. On Juno, the corresponding error code is stored in the V2M Non-Volatile flags register. In both cases, the CPU spins until a watchdog reset is generated after 256 seconds (as specified in the TBBR document). Change-Id: I9ca11dcb0fe15af5dbc5407ab3cf05add962f4b4 |
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| .. | ||
| diagrams | ||
| plat | ||
| spd | ||
| auth-framework.md | ||
| change-log.md | ||
| cpu-specific-build-macros.md | ||
| firmware-design.md | ||
| interrupt-framework-design.md | ||
| platform-migration-guide.md | ||
| porting-guide.md | ||
| psci-pd-tree.md | ||
| rt-svc-writers-guide.md | ||
| trusted-board-boot.md | ||
| user-guide.md | ||