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-rw-r--r--arch/arm/Kconfig.debug12
1 files changed, 10 insertions, 2 deletions
diff --git a/arch/arm/Kconfig.debug b/arch/arm/Kconfig.debug
index 91a826308d56..b3dc1fa30848 100644
--- a/arch/arm/Kconfig.debug
+++ b/arch/arm/Kconfig.debug
@@ -81,6 +81,14 @@ choice
prompt "Kernel low-level debugging port"
depends on DEBUG_LL
+ config DEBUG_LL_UART_NONE
+ bool "No low-level debugging UART"
+ help
+ Say Y here if your platform doesn't provide a UART option
+ below. This relies on your platform choosing the right UART
+ definition internally in order for low-level debugging to
+ work.
+
config DEBUG_ICEDCC
bool "Kernel low-level debugging via EmbeddedICE DCC channel"
help
@@ -89,8 +97,8 @@ choice
co-processor 14. This is known to work on the ARM9 style ICE
channel and on the XScale with the PEEDI.
- It does include a timeout to ensure that the system does not
- totally freeze when there is nothing connected to read.
+ Note that the system will appear to hang during boot if there
+ is nothing connected to read from the DCC.
config DEBUG_FOOTBRIDGE_COM1
bool "Kernel low-level debugging messages via footbridge 8250 at PCI COM1"