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authorMartin Michlmayr <tbm@cyrius.com>2009-11-19 11:40:09 -0500
committerRalf Baechle <ralf@linux-mips.org>2009-12-01 11:21:25 -0500
commit2b5e63f6b8f6566161a261a9face1de433d6608e (patch)
tree3005496a80d3b23d9c201bfcb84f90191d111eee /arch
parent29e553631b2a0d4eebd23db630572e1027a9967a (diff)
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: Martin 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: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch')
-rw-r--r--arch/mips/Kconfig18
1 files changed, 16 insertions, 2 deletions
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index 1aad0d9f5074..ffdd651c54b1 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -358,7 +358,14 @@ config SGI_IP22
358 select SWAP_IO_SPACE 358 select SWAP_IO_SPACE
359 select SYS_HAS_CPU_R4X00 359 select SYS_HAS_CPU_R4X00
360 select SYS_HAS_CPU_R5000 360 select SYS_HAS_CPU_R5000
361 select SYS_HAS_EARLY_PRINTK 361 #
362 # Disable EARLY_PRINTK for now since it leads to overwritten prom
363 # memory during early boot on some machines.
364 #
365 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
366 # for a more details discussion
367 #
368 # select SYS_HAS_EARLY_PRINTK
362 select SYS_SUPPORTS_32BIT_KERNEL 369 select SYS_SUPPORTS_32BIT_KERNEL
363 select SYS_SUPPORTS_64BIT_KERNEL 370 select SYS_SUPPORTS_64BIT_KERNEL
364 select SYS_SUPPORTS_BIG_ENDIAN 371 select SYS_SUPPORTS_BIG_ENDIAN
@@ -410,7 +417,14 @@ config SGI_IP28
410 select SGI_HAS_ZILOG 417 select SGI_HAS_ZILOG
411 select SWAP_IO_SPACE 418 select SWAP_IO_SPACE
412 select SYS_HAS_CPU_R10000 419 select SYS_HAS_CPU_R10000
413 select SYS_HAS_EARLY_PRINTK 420 #
421 # Disable EARLY_PRINTK for now since it leads to overwritten prom
422 # memory during early boot on some machines.
423 #
424 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
425 # for a more details discussion
426 #
427 # select SYS_HAS_EARLY_PRINTK
414 select SYS_SUPPORTS_64BIT_KERNEL 428 select SYS_SUPPORTS_64BIT_KERNEL
415 select SYS_SUPPORTS_BIG_ENDIAN 429 select SYS_SUPPORTS_BIG_ENDIAN
416 help 430 help