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ARM: imx: support DEBUG_LL uart port selection for all i.MX SoCs

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Extend imx6q DEBUG_LL uart port selection support to cover all i.MX
SoCs.  The 'range' of the Kconfig option gets dropped, as users
looking at the option must know the uart number on his board.  The
bottom line is that the build system will report an error if an
invalid port number is picked for given SoC.

The header arch/arm/include/debug/imx-uart.h is created to accommodate
all the uart base addresses.  And the header will also be used for
other low-level debug facility later.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
This commit is contained in:
Shawn Guo
2012-12-12 19:03:53 +08:00
parent 4ad625d466
commit f8c95fe6d9
3 changed files with 98 additions and 32 deletions
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13
arch/arm/Kconfig.debug
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@@ -457,11 +457,16 @@ choice
endchoice
config DEBUG_IMX6Q_UART_PORT
int "i.MX6Q Debug UART Port (1-5)" if DEBUG_IMX6Q_UART
range 1 5
config DEBUG_IMX_UART_PORT
int "i.MX Debug UART Port Selection" if DEBUG_IMX1_UART || \
DEBUG_IMX25_UART || \
DEBUG_IMX21_IMX27_UART || \
DEBUG_IMX31_UART || \
DEBUG_IMX35_UART || \
DEBUG_IMX51_UART || \
DEBUG_IMX50_IMX53_UART || \
DEBUG_IMX6Q_UART
default 1
depends on SOC_IMX6Q
help
Choose UART port on which kernel low-level debug messages
should be output.