Commit Graph

3 Commits

Author SHA1 Message Date
Justin Chadwell 673406b508 Update renesas platform to not rely on undefined overflow behaviour
This consists of ensuring that the left operand of each shift is
unsigned when the operation might overflow into the sign bit.

Change-Id: I51278beacbe6da79853c3f0f0f94cd806fc9652c
Signed-off-by: Justin Chadwell <justin.chadwell@arm.com>
2019-07-11 12:10:58 +01:00
Marek Vasut 018358fc37 rcar_gen3: console: Convert to multi-console API
Convert the R-Car Gen3 platform and both SCIF and Log drivers
to multi-console API.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Change-Id: I18556973937d150b60453f9150d54ee612571e35
2019-06-14 00:16:55 +02:00
Marek Vasut 0969397f29 rcar_gen3: plat: Prevent PCIe hang during L1X config access
In case the PCIe controller receives a L1_Enter_PM DLLP, it will
disable the internal PLLs. The system software cannot predict it
and can attempt to perform device config space access across the
PCIe link while the controller is in this transitional state. If
such condition happens, the PCIe controller register access will
trigger ARM64 SError exception.

This patch adds checks for which PCIe controller is enabled,
checks whether the PCIe controller is in such a transitional
state and if so, first completes the transition and then restarts
the instruction which caused the SError.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
2019-02-20 16:18:08 +01:00