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authorAntonio Nino Diaz <antonio.ninodiaz@arm.com>2018-07-11 21:00:32 +0100
committerAntonio Nino Diaz <antonio.ninodiaz@arm.com>2018-07-11 21:00:32 +0100
commitd35de55e55667b26e2969df191ae472f20e5ce45 (patch)
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parentdf4c512d470d8bb728343b7edf040ce7c515bd79 (diff)
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rpi3: Implement simple interrupt routing
Implement minimal interrupt routing functions. All interrupts are treated as non-secure interrupts to be handled by the non-secure world. Add note to the documentation about disabling FIQs qhen using OP-TEE with Linux. Change-Id: I937096542d973925e43ae946c5d0b306d0d95a94 Tested-by: Ying-Chun Liu (PaulLiu) <paul.liu@linaro.org> Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
Diffstat (limited to 'docs/plat')
-rw-r--r--docs/plat/rpi3.rst6
1 files changed, 6 insertions, 0 deletions
diff --git a/docs/plat/rpi3.rst b/docs/plat/rpi3.rst
index c8e2405cc..5e535c61d 100644
--- a/docs/plat/rpi3.rst
+++ b/docs/plat/rpi3.rst
@@ -243,6 +243,12 @@ The following build options are supported:
BL32_EXTRA1=tee-pager_v2.bin BL32_EXTRA2=tee-pageable_v2.bin``
to put the binaries into the FIP.
+ Note: If OP-TEE is used it may be needed to add the following options to the
+ Linux command line so that the USB driver doesn't use FIQs:
+ ``dwc_otg.fiq_enable=0 dwc_otg.fiq_fsm_enable=0 dwc_otg.nak_holdoff=0``.
+ This will unfortunately reduce the performance of the USB driver. It is needed
+ when using Raspbian, for example.
+
- ``TRUSTED_BOARD_BOOT``: This port supports TBB. Set this option
``TRUSTED_BOARD_BOOT=1`` to enable it. In order to use TBB, you might
want to set ``GENERATE_COT=1`` to let the contents of the FIP automatically