9a6eb310ea
This patch introduces debug powerdown support for self-hosted debug for v7 and v7.1 debug architecture for a SinglePower system, i.e. a system without a separate core and debug power domain. On a SinglePower system the OS Lock is lost over a powerdown. If CONFIG_CPU_PM is set the new function pm_init() registers hw_breakpoint with CPU PM for a system supporting OS Save and Restore. Receiving a CPU PM EXIT notifier indicates that a single CPU has exited a low power state. A call to reset_ctrl_regs() is hooked into the CPU PM EXIT notifier chain. This function makes sure that the sticky power-down is clear (only v7 debug), the OS Double Lock is clear (only v7.1 debug) and it clears the OS Lock for v7 debug (for a system supporting OS Save and Restore) and v7.1 debug. Furthermore, it clears any vector-catch events and all breakpoint/watchpoint control/value registers for v7 and v7.1 debug. Signed-off-by: Dietmar Eggemann <dietmar.eggemann@arm.com> [will: removed redundant has_ossr check] Signed-off-by: Will Deacon <will.deacon@arm.com> |
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avr32 | ||
blackfin | ||
c6x | ||
cris | ||
frv | ||
h8300 | ||
hexagon | ||
ia64 | ||
m32r | ||
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microblaze | ||
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mn10300 | ||
openrisc | ||
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score | ||
sh | ||
sparc | ||
tile | ||
um | ||
unicore32 | ||
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xtensa | ||
.gitignore | ||
Kconfig |