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| author | Samium Gromoff <_deepfire@feelingofgreen.ru> | 2010-07-20 15:26:51 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2010-08-10 13:47:45 -0700 |
| commit | 1917ac76e023339c73844bec775375b147f57ac7 (patch) | |
| tree | 98751557cd135eb19c0b77871dade3a4a878d329 /Documentation/kernel-parameters.txt | |
| parent | 0ac8382e9cfdd723445692fc97aaa4643929750d (diff) | |
| download | lwn-1917ac76e023339c73844bec775375b147f57ac7.tar.gz lwn-1917ac76e023339c73844bec775375b147f57ac7.zip | |
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/kernel-parameters.txt')
| -rw-r--r-- | Documentation/kernel-parameters.txt | 3 |
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] |