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Commit 2b5e63f6 authored by Martin Michlmayr's avatar Martin Michlmayr Committed by Ralf Baechle
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MIPS: IP22/IP28 Disable early printk to fix boot problems on some systems. 



Some Debian users have reported that the kernel hangs early during boot on
some IP22 systems.  Thomas Bogendoerfer found that this is due to a "bad
interaction between CONFIG_EARLY_PRINTK and overwritten prom memory during
early boot".  Since there's no fix yet, disable CONFIG_EARLY_PRINTK for now.

Signed-off-by: default avatarMartin Michlmayr <tbm@cyrius.com>
Cc: linux-mips@linux-mips.org
Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Cc: Dmitri Vorobiev <dmitri.vorobiev@gmail.com>
Patchwork: http://patchwork.linux-mips.org/patch/702/


Signed-off-by: default avatarRalf Baechle <ralf@linux-mips.org>
parent 29e55363

arch/mips/Kconfig

+16 −2
Original line number Diff line number Diff line
@@ -358,7 +358,14 @@ config SGI_IP22 
	select SWAP_IO_SPACE

	select SYS_HAS_CPU_R4X00

	select SYS_HAS_CPU_R5000

	select SYS_HAS_EARLY_PRINTK

	#

	# Disable EARLY_PRINTK for now since it leads to overwritten prom

	# memory during early boot on some machines.

	#

	# See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com

	# for a more details discussion

	#

	# select SYS_HAS_EARLY_PRINTK

	select SYS_SUPPORTS_32BIT_KERNEL

	select SYS_SUPPORTS_64BIT_KERNEL

	select SYS_SUPPORTS_BIG_ENDIAN
@@ -410,7 +417,14 @@ config SGI_IP28 
	select SGI_HAS_ZILOG

	select SWAP_IO_SPACE

	select SYS_HAS_CPU_R10000

	select SYS_HAS_EARLY_PRINTK

	#

	# Disable EARLY_PRINTK for now since it leads to overwritten prom

	# memory during early boot on some machines.

	#

	# See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com

	# for a more details discussion

	#

	# select SYS_HAS_EARLY_PRINTK

	select SYS_SUPPORTS_64BIT_KERNEL

	select SYS_SUPPORTS_BIG_ENDIAN

      help