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| author | Paul Mundt <lethal@linux-sh.org> | 2006-11-27 04:10:23 +0100 |
|---|---|---|
| committer | Paul Mundt <lethal@linux-sh.org> | 2006-12-06 02:45:39 +0100 |
| commit | 6fc21b82ef74911887ced1aff8d37ce079bb8b36 (patch) | |
| tree | 7accfcb402a530dcddb4d755f413e8098037801f /arch/sh/Kconfig.debug | |
| parent | sh: Fixup various PAGE_SIZE == 4096 assumptions. (diff) | |
| download | linux-6fc21b82ef74911887ced1aff8d37ce079bb8b36.tar.xz linux-6fc21b82ef74911887ced1aff8d37ce079bb8b36.zip | |
sh: More flexible + SH7780 earlyprintk SCIF support.
This makes the early printk support somewhat more flexible,
moving the port definition to a config option, and making the
port initialization configurable for sh-ipl+g users.
At the same time, this allows us to trivially wire up the
SH7780 SCIF0, so that's thrown in too more or less for free.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'arch/sh/Kconfig.debug')
| -rw-r--r-- | arch/sh/Kconfig.debug | 18 |
1 files changed, 17 insertions, 1 deletions
diff --git a/arch/sh/Kconfig.debug b/arch/sh/Kconfig.debug index 48479e014dac..dcceec95a2d5 100644 --- a/arch/sh/Kconfig.debug +++ b/arch/sh/Kconfig.debug @@ -17,7 +17,18 @@ config SH_STANDARD_BIOS config EARLY_SCIF_CONSOLE bool "Use early SCIF console" - depends on CPU_SH4 || CPU_SH2A && !SH_STANDARD_BIOS + help + This enables an early console using a fixed SCIF port. This can + be used by platforms that are either not running the SH + standard BIOS, or do not wish to use the BIOS callbacks for the + serial I/O. + +config EARLY_SCIF_CONSOLE_PORT + hex "SCIF port for early console" + depends on EARLY_SCIF_CONSOLE + default "0xffe00000" if CPU_SUBTYPE_SH7780 + default "0xfffe9800" if CPU_SUBTYPE_SH72060 + default "0xffe80000" if CPU_SH4 config EARLY_PRINTK bool "Early printk support" @@ -30,6 +41,11 @@ config EARLY_PRINTK when the kernel may crash or hang before the serial console is initialised. If unsure, say N. + On devices that are running SH-IPL and want to keep the port + initialization consistent while not using the BIOS callbacks, + select both the EARLY_SCIF_CONSOLE and SH_STANDARD_BIOS, using + the kernel command line option to toggle back and forth. + config DEBUG_STACKOVERFLOW bool "Check for stack overflows" depends on DEBUG_KERNEL |