summaryrefslogtreecommitdiff
path: root/arch/arm/Kconfig.debug
diff options
context:
space:
mode:
authorRussell King <rmk+kernel@arm.linux.org.uk>2013-07-07 15:29:38 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2013-08-25 17:11:07 +0100
commitf8f1279ce06a6dcc959fe23de5126c1945065c8c (patch)
tree8d2719df4c1ba3bd4b6b57154f6de7a9f196cc6d /arch/arm/Kconfig.debug
parent4e218b99285485a6788339ee660cc535c7bd5017 (diff)
ARM: debug: provide generic option choices for 8250 and PL01x ports
Provide generic option choices for 8250 and PL01x UART ports; these can now be selected by UART type rather than asking about the platform. This means that a kernel configuration user can manually choose the various parameters of the debug UART without resorting to the platform having to encode the possible settings. These two generic options are preferred over further debug entries for these ports; the existing options which refer back to the 8250 and PL01x ports are now considered deprecated. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/Kconfig.debug')
-rw-r--r--arch/arm/Kconfig.debug44
1 files changed, 37 insertions, 7 deletions
diff --git a/arch/arm/Kconfig.debug b/arch/arm/Kconfig.debug
index b4b298654224..80374fca8388 100644
--- a/arch/arm/Kconfig.debug
+++ b/arch/arm/Kconfig.debug
@@ -806,6 +806,32 @@ choice
For more details about semihosting, please see
chapter 8 of DUI0203I_rvct_developer_guide.pdf from ARM Ltd.
+ config DEBUG_LL_UART_8250
+ bool "Kernel 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.
+
+ config DEBUG_LL_UART_PL01X
+ bool "Kernel low-level debugging via ARM Ltd PL01x Primecell UART"
+ help
+ Say Y here if you wish the debug print routes to direct
+ their output to a PL01x Primecell UART. You can use
+ this option to provide the parameters for the 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_EXYNOS_UART
@@ -845,8 +871,8 @@ config DEBUG_STI_UART
config DEBUG_LL_INCLUDE
string
- default "debug/8250.S" if DEBUG_UART_8250
- default "debug/pl01x.S" if DEBUG_UART_PL01X
+ default "debug/8250.S" if DEBUG_LL_UART_8250 || DEBUG_UART_8250
+ default "debug/pl01x.S" if DEBUG_LL_UART_PL01X || DEBUG_UART_PL01X
default "debug/exynos.S" if DEBUG_EXYNOS_UART
default "debug/icedcc.S" if DEBUG_ICEDCC
default "debug/imx.S" if DEBUG_IMX1_UART || \
@@ -870,11 +896,13 @@ config DEBUG_LL_INCLUDE
default "debug/zynq.S" if DEBUG_ZYNQ_UART0 || DEBUG_ZYNQ_UART1
default "mach/debug-macro.S"
+# Compatibility options for PL01x
config DEBUG_UART_PL01X
def_bool ARCH_EP93XX || \
ARCH_INTEGRATOR || \
ARCH_VERSATILE
+# Compatibility options for 8250
config DEBUG_UART_8250
def_bool ARCH_DOVE || ARCH_EBSA110 || \
(FOOTBRIDGE && !DEBUG_DC21285_PORT) || \
@@ -925,7 +953,8 @@ config DEBUG_UART_PHYS
default 0xffd82340 if ARCH_IOP13XX
default 0xfff36000 if DEBUG_HIGHBANK_UART
default 0xfffff700 if ARCH_IOP33X
- depends on DEBUG_UART_8250 || DEBUG_UART_PL01X
+ depends on DEBUG_LL_UART_8250 || DEBUG_LL_UART_PL01X || \
+ DEBUG_UART_8250 || DEBUG_UART_PL01X
config DEBUG_UART_VIRT
hex "Virtual base address of debug UART"
@@ -971,23 +1000,24 @@ config DEBUG_UART_VIRT
default 0xfefff700 if ARCH_IOP33X
default 0xff003000 if DEBUG_U300_UART
default DEBUG_UART_PHYS if !MMU
- depends on DEBUG_UART_8250 || DEBUG_UART_PL01X
+ depends on DEBUG_LL_UART_8250 || DEBUG_LL_UART_PL01X || \
+ DEBUG_UART_8250 || DEBUG_UART_PL01X
config DEBUG_UART_8250_SHIFT
int "Register offset shift for the 8250 debug UART"
- depends on DEBUG_UART_8250
+ depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250
default 0 if FOOTBRIDGE || ARCH_IOP32X
default 2
config DEBUG_UART_8250_WORD
bool "Use 32-bit accesses for 8250 UART"
- depends on DEBUG_UART_8250
+ depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250
depends on DEBUG_UART_8250_SHIFT >= 2
default y if DEBUG_PICOXCELL_UART || DEBUG_SOCFPGA_UART
config DEBUG_UART_8250_FLOW_CONTROL
bool "Enable flow control for 8250 UART"
- depends on DEBUG_UART_8250
+ depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250
default y if ARCH_EBSA110 || FOOTBRIDGE || ARCH_GEMINI || ARCH_RPC
config DEBUG_UNCOMPRESS