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83f672a7f6
When MACH_IS_MVME147, the boot console calls mvme147_scc_write() to
generate console output. That will continue to work even after
debug_cons_nputs() becomes unavailable so there's no need to
unregister the boot console.
Take the opportunity to remove a repeated MACH_IS_* test. Use the
actual .write method (instead of a wrapper) and test that pointer
instead. This means adding an unused parameter to debug_cons_nputs() for
consistency with the struct console API.
early_printk.c is only built when CONFIG_EARLY_PRINTK=y. As of late,
head.S is only built when CONFIG_MMU_MOTOROLA=y. So let the former symbol
depend on the latter, to obviate some ifdef conditionals.
Cc: Daniel Palmer <daniel@0x0f.com>
Fixes: 077b33b9e2 ("m68k: mvme147: Reinstate early console")
Signed-off-by: Finn Thain <fthain@linux-m68k.org>
Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org>
Link: https://lore.kernel.org/d1d4328e5aa9a87bd8352529ce62b767731c0530.1743467205.git.fthain@linux-m68k.org
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
45 lines
1.1 KiB
Text
45 lines
1.1 KiB
Text
# SPDX-License-Identifier: GPL-2.0
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config BOOTPARAM
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bool "Compiled-in Kernel Boot Parameter"
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config BOOTPARAM_STRING
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string "Kernel Boot Parameter"
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default "console=ttyS0,19200"
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depends on BOOTPARAM
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config EARLY_PRINTK
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bool "Early printk"
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depends on MMU_MOTOROLA
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help
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Write kernel log output directly to a serial port.
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Where implemented, output goes to the framebuffer as well.
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PROM console functionality on Sun 3x is not affected by this option.
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Pass "earlyprintk" on the kernel command line to get a
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boot console.
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This is useful for kernel debugging when your machine crashes very
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early, i.e. before the normal console driver is loaded.
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You should normally say N here, unless you want to debug such a crash.
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if !MMU
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config FULLDEBUG
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bool "Full Symbolic/Source Debugging support"
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help
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Enable debugging symbols on kernel build.
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config HIGHPROFILE
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bool "Use fast second timer for profiling"
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depends on COLDFIRE
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help
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Use a fast secondary clock to produce profiling information.
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config BDM_DISABLE
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bool "Disable BDM signals"
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depends on COLDFIRE
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help
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Disable the ColdFire CPU's BDM signals.
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endif
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