Commit fc2f151d authored by Sumit Gupta's avatar Sumit Gupta Committed by Thierry Reding
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soc/tegra: cbb: Add driver for Tegra234 CBB 2.0 



Adding driver to handle errors from CBB version 2.0 which is used in
Tegra234 SoC. The driver prints debug information about failed
transaction on receiving interrupt from the error notifier. The error
notifier collates the interrupts from various error monitor blocks and
presents a single interrupt to the SoC interrupt controller.

For timeout errors, the driver also does the lookup to find timed out
clients and prints their client ID. Drivers for hardware that needs to
be reset on timeout will have to call BPMP from the client IP's driver.
BPMP firmware will also clear the timeout bit after resetting the IP
so that next transactions are send to them after reset.

Signed-off-by: default avatarSumit Gupta <sumitg@nvidia.com>
Signed-off-by: default avatarThierry Reding <treding@nvidia.com>
parent b7134422

drivers/soc/tegra/Kconfig

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Original line number Diff line number Diff line
@@ -165,7 +165,7 @@ config SOC_TEGRA30_VOLTAGE_COUPLER 


config SOC_TEGRA_CBB

	tristate "Tegra driver to handle error from CBB"

	depends on ARCH_TEGRA_194_SOC

	depends on ARCH_TEGRA_194_SOC || ARCH_TEGRA_234_SOC

	default y

	help

	  Support for handling error from Tegra Control Backbone(CBB).

drivers/soc/tegra/cbb/Makefile

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@@ -5,4 +5,5 @@ 
ifdef CONFIG_SOC_TEGRA_CBB

obj-y += tegra-cbb.o

obj-$(CONFIG_ARCH_TEGRA_194_SOC) += tegra194-cbb.o

obj-$(CONFIG_ARCH_TEGRA_234_SOC) += tegra234-cbb.o

endif

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

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