[U-Boot] [PATCH v3 10/19] ARM: tegra: Workaround UDC boot issues only if necessary

Thierry Reding
2019-03-21T18:01:09Z

Resetting the USB device controller on boot is only necessary if the SoC
actually has a UDC controller and U-Boot enables support for it. All the
Tegra boards support UDC via the ChipIdea UDC driver, so make the UDC on
boot workaround depend on the ChipIdea UDC driver.

This prevents a crash on Tegra186 which does not have the ChipIdea UDC.

Signed-off-by: Thierry Reding <treding@nvidia.com>
---
arch/arm/mach-tegra/Kconfig | 1 +
1 file changed, 1 insertion(+)

diff --git a/arch/arm/mach-tegra/Kconfig b/arch/arm/mach-tegra/Kconfig
index 28914a34a1b5..faa73559fd42 100644
--- a/arch/arm/mach-tegra/Kconfig
+++ b/arch/arm/mach-tegra/Kconfig
@@ -148,6 +148,7 @@ endchoice

config TEGRA_DISCONNECT_UDC_ON_BOOT
bool "Disconnect USB device mode controller on boot"
+ depends on CI_UDC
default y
help
When loading U-Boot into RAM over USB protocols using tools such as
--
2.21.0