Add a kconfig option to allow the user to select a specific physical

USB port for use as Debug Port (on chipsets which support that).

Signed-off-by: Uwe Hermann <uwe@hermann-uwe.de>
Acked-by: Stefan Reinauer <stepan@coresystems.de>



git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5860 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1

1 files changed, 21 insertions, 0 deletions

diff --git a/src/console/Kconfig b/src/console/Kconfig
index fa6f840035..3b8fb02dca 100644
--- a/src/console/Kconfig
+++ b/src/console/Kconfig
@@ -112,6 +112,27 @@ config USBDEBUG
 
 	  If unsure, say N.
 
+# Note: This option doesn't make sense on Intel ICH southbridges as those
+# hardcode the physical USB port to be used as Debug Port to 1. It cannot
+# be changed by coreboot.
+config USBDEBUG_DEFAULT_PORT
+	int "Default USB port to use as Debug Port"
+	default 1
+	depends on USBDEBUG && !SOUTHBRIDGE_INTEL_I82801GX
+	help
+	  This option selects which physical USB port coreboot will try to
+	  use as EHCI Debug Port first (valid values are: 1-15).
+
+	  If coreboot doesn't detect an EHCI Debug Port dongle on this port,
+	  it will try all the other ports one after the other. This will take
+	  a few seconds of time though, and thus slow down the booting process.
+
+	  Hence, if you select the correct port here, you can speed up
+	  your boot time. Which USB port number (1-15) refers to which
+	  actual port on your mainboard (potentially also USB pin headers
+	  on your mainboard) is highly board-specific, and you'll likely
+	  have to find out by trial-and-error.
+
 config CONSOLE_VGA
 	bool "Use VGA console once initialized"
 	default n