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| author | Noam Camus <noamc@ezchip.com> | 2015-05-25 06:54:28 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-06-01 06:55:12 +0900 |
| commit | 6e63be3fee141cc6d122f648b524a66160dbe6aa (patch) | |
| tree | d3210a5bd98d24de80fff5f44b7a9b071e2682ff /Documentation/kernel-parameters.txt | |
| parent | 0f17e3b478a77e00e873f6ca235644322843c81e (diff) | |
| download | lwn-6e63be3fee141cc6d122f648b524a66160dbe6aa.tar.gz lwn-6e63be3fee141cc6d122f648b524a66160dbe6aa.zip | |
serial: earlycon: Add support for big-endian MMIO accesses
Support command line parameters of the form:
earlycon=<name>,io|mmio|mmio32|mmio32be,<addr>,<options>
This commit seem to be needed even after commit:
serial: 8250: Add support for big-endian MMIO accesses
c627f2ceb692e8a9358b64ac2d139314e7bb0d17
Signed-off-by: Noam Camus <noamc@ezchip.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'Documentation/kernel-parameters.txt')
| -rw-r--r-- | Documentation/kernel-parameters.txt | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt index 61ab1628a057..55bb093a08a3 100644 --- a/Documentation/kernel-parameters.txt +++ b/Documentation/kernel-parameters.txt @@ -959,14 +959,15 @@ bytes respectively. Such letter suffixes can also be entirely omitted. uart[8250],io,<addr>[,options] uart[8250],mmio,<addr>[,options] uart[8250],mmio32,<addr>[,options] + uart[8250],mmio32be,<addr>[,options] uart[8250],0x<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 8-bit - (mmio) or 32-bit (mmio32). - If none of [io|mmio|mmio32], <addr> is assumed to be - equivalent to 'mmio'. 'options' are specified in the - same format described for "console=ttyS<n>"; if + (mmio) or 32-bit (mmio32 or mmio32be). + If none of [io|mmio|mmio32|mmio32be], <addr> is assumed + to be equivalent to 'mmio'. 'options' are specified + in the same format described for "console=ttyS<n>"; if unspecified, the h/w is not initialized. pl011,<addr> |