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Commit f8f1279c authored by Russell King's avatar Russell King
Browse files

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: default avatarRussell King <rmk+kernel@arm.linux.org.uk>
parent 4e218b99

arch/arm/Kconfig.debug

+37 −7
Original line number Diff line number Diff line
@@ -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