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>
diff --git a/drivers/tty/serial/earlycon.c b/drivers/tty/serial/earlycon.c
index 6dc471e..f096360 100644
--- a/drivers/tty/serial/earlycon.c
+++ b/drivers/tty/serial/earlycon.c
@@ -72,6 +72,7 @@
switch (port->iotype) {
case UPIO_MEM32:
+ case UPIO_MEM32BE:
port->regshift = 2; /* fall-through */
case UPIO_MEM:
port->mapbase = addr;
@@ -90,9 +91,11 @@
strlcpy(device->options, options, length);
}
- if (port->iotype == UPIO_MEM || port->iotype == UPIO_MEM32)
+ if (port->iotype == UPIO_MEM || port->iotype == UPIO_MEM32 ||
+ port->iotype == UPIO_MEM32BE)
pr_info("Early serial console at MMIO%s 0x%llx (options '%s')\n",
- (port->iotype == UPIO_MEM32) ? "32" : "",
+ (port->iotype == UPIO_MEM) ? "" :
+ (port->iotype == UPIO_MEM32) ? "32" : "32be",
(unsigned long long)port->mapbase,
device->options);
else
@@ -133,7 +136,7 @@
*
* Registers the earlycon console matching the earlycon specified
* in the param string @buf. Acceptable param strings are of the form
- * <name>,io|mmio|mmio32,<addr>,<options>
+ * <name>,io|mmio|mmio32|mmio32be,<addr>,<options>
* <name>,0x<addr>,<options>
* <name>,<options>
* <name>