soc/tegra: cbb: Check firewall before enabling error reporting

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To enable error reporting for a fabric to CCPLEX, we need to write its
register for enabling error interrupt to CCPLEX during boot and later
clear the error status register after error occurs. If a fabric's
registers are protected and not accessible from CCPLEX, then accessing
the registers will cause CBB firewall error.

Add support to check whether write access from CCPLEX to the registers
of a fabric is not blocked by it's firewall before enabling error
reporting to CCPLEX for that fabric.

Fixes: fc2f151d23 ("soc/tegra: cbb: Add driver for Tegra234 CBB 2.0")
Signed-off-by: Sumit Gupta <sumitg@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>

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Sumit Gupta 2022-11-09 19:27:17 +05:30 • committed by Thierry Reding

parent 55084947d6

commit 2927cf85f4

1 changed files with 81 additions and 2 deletions

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drivers/soc/tegra/cbb/tegra234-cbb.c

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