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Diffstat (limited to 'arch/arm/mach-tegra/Kconfig')
| -rw-r--r-- | arch/arm/mach-tegra/Kconfig | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/arch/arm/mach-tegra/Kconfig b/arch/arm/mach-tegra/Kconfig index 48a387c957..0b2852c4da 100644 --- a/arch/arm/mach-tegra/Kconfig +++ b/arch/arm/mach-tegra/Kconfig @@ -52,6 +52,19 @@ config TEGRA210 endchoice +config TEGRA_DISCONNECT_UDC_ON_BOOT + bool "Disconnect USB device mode controller on boot" + default y + help + When loading U-Boot into RAM over USB protocols using tools such as + tegrarcm or L4T's exec-uboot.sh/tegraflash.py, Tegra's USB device + mode controller is initialized and enumerated by the host PC running + the tool. Unfortunately, these tools do not shut down the USB + controller before executing the downloaded code, and so the host PC + does not "de-enumerate" the USB device. This option shuts down the + USB controller when U-Boot boots to avoid leaving a stale USB device + present. + config SYS_MALLOC_F_LEN default 0x1800 |