libpayload: only compile drivers/serial.c on machines that use it.
Create a new serial console variable, X86_SERIAL_CONSOLE which is only enabled when SERIAL_CONSOLE and ARCH_X86 are defined. Builds for x86 and ARM. Change-Id: I607253c418de015975a839e3c33577842885ec0c Signed-off-by: Ronald G. Minnich <rminnich@gmail.com> Reviewed-on: http://review.coreboot.org/2412 Tested-by: build bot (Jenkins) Reviewed-by: Gabe Black <gabeblack@chromium.org>
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@ -168,9 +168,14 @@ config SERIAL_CONSOLE
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bool "See output on the serial port console"
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default y
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config X86_SERIAL_CONSOLE
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bool
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depends on ARCH_X86 && SERIAL_CONSOLE
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default y
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config SERIAL_IOBASE
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hex "I/O base for the serial port (default 0x3f8)"
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depends on SERIAL_CONSOLE
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depends on X86_SERIAL_CONSOLE
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default 0x3f8
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config SERIAL_SET_SPEED
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@ -33,7 +33,7 @@ libc-$(CONFIG_PCI) += pci.c
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libc-$(CONFIG_SPEAKER) += speaker.c
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libc-$(CONFIG_SERIAL_CONSOLE) += serial.c
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libc-$(CONFIG_X86_SERIAL_CONSOLE) += serial.c
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libc-$(CONFIG_PC_KEYBOARD) += keyboard.c
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