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| H A D | gic.c | 1b4c5002788a6114f29662f49ee8fffcb3ded5aa Thu Jun 01 11:19:54 UTC 2023 Izhar Nevo <inevo@amazon.com> drivers: gic: prevent accessing unimplemented GIC registers
The GIC method for probing for the highest implemented interrupt ignored
is done by writing & reading to GIC registers GICD_ISENABLER<n> &
GICD_ICENABLER<n> that are not always implemented. This causes an
error indication in GIC register GICT_ERR0_STATUS. To prevent this,
Check in GIC register GICD_TYPER how many SPI blocks are implemented
and access only implemented registers.
Signed-off-by: Izhar Nevo <inevo@amazon.com>
Reviewed-by: Jens Wiklander <jens.wiklander@linaro.org>
Reviewed-by: Etienne Carriere <etienne.carriere@foss.st.com>
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