arm-trusted-firmware/drivers/arm/tzc
Stas Sergeev ef378d3ec1 fix(drivers/tzc400): never disable filter 0
Disabling filter 0 causes inability to access DRAM.
An attempt leads to an abort.
ARM manual disallows to disable filter 0, but if we do
that from SRAM, nothing bad happens.

This patch prevents disabling of a filter 0, allowing to
reconfigure other filters from DRAM.

Note: this patch doesn't change the logic after reset.
It is only needed in case someone wants to reconfigure the
previously configured TZASC.

Change-Id: I196a0cb110a89afbde97f64a94df3101f28708a4
Signed-off-by: stsp@users.sourceforge.net
2021-09-15 15:24:22 +02:00
..
tzc380.c tzc: remove deprecated types 2019-04-03 14:55:18 +01:00
tzc400.c fix(drivers/tzc400): never disable filter 0 2021-09-15 15:24:22 +02:00
tzc_common_private.h feat(tzc400): update filters by region 2021-09-08 09:05:16 +02:00
tzc_dmc500.c Sanitise includes across codebase 2019-01-04 10:43:17 +00:00
tzc_dmc620.c TZ DMC620 driver: Fix MISRA-2012 defects 2020-07-27 15:04:14 +01:00