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authorSamium Gromoff <_deepfire@feelingofgreen.ru>2010-07-20 15:26:51 -0700
committerGreg Kroah-Hartman <gregkh@suse.de>2010-08-10 13:47:45 -0700
commit1917ac76e023339c73844bec775375b147f57ac7 (patch)
tree98751557cd135eb19c0b77871dade3a4a878d329 /Documentation
parent0ac8382e9cfdd723445692fc97aaa4643929750d (diff)
downloadkernel-1917ac76e023339c73844bec775375b147f57ac7.tar.gz
serial: MMIO32 support for 8250_early.c
Provide MMIO32 support in 8250_early (aka earlycon) [randy.dunlap@oracle.com: fix printk format warnings] [akpm@linux-foundation.org: fix printk args some more] Signed-off-by: Samium Gromoff <_deepfire@feelingofgreen.ru> Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/kernel-parameters.txt3
1 files changed, 3 insertions, 0 deletions
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index 44f6b19c50bb..d529b1363e95 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -681,8 +681,11 @@ and is between 256 and 4096 characters. It is defined in the file
earlycon= [KNL] Output early console device and options.
uart[8250],io,<addr>[,options]
uart[8250],mmio,<addr>[,options]
+ uart[8250],mmio32,<addr>[,options]
Start an early, polled-mode console on the 8250/16550
UART at the specified I/O port or MMIO address.
+ MMIO inter-register address stride is either 8bit (mmio)
+ or 32bit (mmio32).
The options are the same as for ttyS, above.
earlyprintk= [X86,SH,BLACKFIN]