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

Message ID 20190321180118.26475-11-thierry.reding@gmail.com
State Superseded
Delegated to: Tom Warren
Headers show
Series ARM: tegra: Miscellaneous improvements | expand

Commit Message

Thierry Reding March 21, 2019, 6:01 p.m. UTC 
From: Thierry Reding <treding@nvidia.com>

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(+)
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Patch

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