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-rw-r--r--arch/arm/Kconfig2
-rw-r--r--arch/arm/Kconfig.debug64
-rw-r--r--arch/arm/lib/Makefile2
3 files changed, 68 insertions, 0 deletions
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 109d49f..8d05bb9 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -707,4 +707,6 @@ source "board/woodburn/Kconfig"
source "board/xaeniax/Kconfig"
source "board/zipitz2/Kconfig"
+source "arch/arm/Kconfig.debug"
+
endmenu
diff --git a/arch/arm/Kconfig.debug b/arch/arm/Kconfig.debug
new file mode 100644
index 0000000..624bcf4
--- /dev/null
+++ b/arch/arm/Kconfig.debug
@@ -0,0 +1,64 @@
+menu "ARM debug"
+
+config DEBUG_LL
+ bool "Low-level debugging functions"
+ depends on !ARM64
+ help
+ Say Y here to include definitions of printascii, printch, printhex
+ in U-Boot. This is helpful if you are debugging code that
+ executes before the console is initialized.
+
+choice
+ prompt "Low-level debugging port"
+ depends on DEBUG_LL
+
+ config DEBUG_LL_UART_8250
+ bool "Low-level debugging via 8250 UART"
+ help
+ Say Y here if you wish the debug print routes to direct
+ their output to an 8250 UART. You can use this option
+ to provide the parameters for the 8250 UART rather than
+ selecting one of the platform specific options above if
+ you know the parameters for the port.
+
+ This option is preferred over the platform specific
+ options; the platform specific options are deprecated
+ and will be soon removed.
+
+endchoice
+
+config DEBUG_LL_INCLUDE
+ string
+ depends on DEBUG_LL
+ default "debug/8250.S" if DEBUG_LL_UART_8250 || DEBUG_UART_8250
+ default "mach/debug-macro.S"
+
+# Compatibility options for 8250
+config DEBUG_UART_8250
+ bool
+
+config DEBUG_UART_PHYS
+ hex "Physical base address of debug UART"
+ depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250
+
+# This is not used in U-Boot
+config DEBUG_UART_VIRT
+ hex
+ default DEBUG_UART_PHYS
+ depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250
+
+config DEBUG_UART_8250_SHIFT
+ int "Register offset shift for the 8250 debug UART"
+ depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250
+ default 2
+
+config DEBUG_UART_8250_WORD
+ bool "Use 32-bit accesses for 8250 UART"
+ depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250
+ depends on DEBUG_UART_8250_SHIFT >= 2
+
+config DEBUG_UART_8250_FLOW_CONTROL
+ bool "Enable flow control for 8250 UART"
+ depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250
+
+endmenu
diff --git a/arch/arm/lib/Makefile b/arch/arm/lib/Makefile
index 1ef2400..d74e4b8 100644
--- a/arch/arm/lib/Makefile
+++ b/arch/arm/lib/Makefile
@@ -48,6 +48,8 @@ ifndef CONFIG_ARM64
obj-y += cache-cp15.o
endif
+obj-$(CONFIG_DEBUG_LL) += debug.o
+
# For EABI conformant tool chains, provide eabi_compat()
ifneq (,$(findstring -mabi=aapcs-linux,$(PLATFORM_CPPFLAGS)))
extra-y += eabi_compat.o