Prepare v2015.07-rc2

[karo-tx-uboot.git] / doc / README.serial_multi

diff --git a/doc/README.serial_multi b/doc/README.serial_multi
index 1d73376b2c7af6ee05018b534093cb6f327595ab..ad61d4261b66a00564c741db0176ca51ecece408 100644 (file)
--- a/doc/README.serial_multi
+++ b/doc/README.serial_multi
@@ -2,6 +2,8 @@ The support for multiple serial interfaces as implemented is mainly
 intended to allow for modem dial-in / dial-out while still being able
 to use a serial console on a (different) serial port.
 
+MPC8XX Specific
+===============
 At the moment, the ports must be split on a SMC and a SCC port  on  a
 8xx processor; other configurations are not (yet) supported.
 
@@ -33,5 +35,46 @@ just after switching the console:
        setenv sout serial_scc; setenv baudrate 38400
 
 After that press 'enter' at the SCC console. Note that baudrates <38400
-are not allowed on LWMON with watchdog enabled (see CFG_BAUDRATE_TABLE in
+are not allowed on LWMON with watchdog enabled (see CONFIG_SYS_BAUDRATE_TABLE in
 include/configs/lwmon.h).
+
+
+PPC4XX Specific
+===============
+*) The default console is UART0
+
+*) The console can be switched to UART1 by any of the following commands:
+       setenv stdout serial1
+       setenv stderr serial1
+       setenv stdin serial1
+
+*) The console can be switched to UART0 by any of the following commands:
+       setenv stdout serial0
+       setenv stderr serial0
+       setenv stdin serial0
+
+MPC5xxx Specific
+================
+
+Up to two PSCs can be used as console.
+
+Support for hardware handshake has not been implemented yet.
+
+*) The first (default) console port is defined by:
+       #define CONFIG_PSC_CONSOLE <PSC number>
+
+*) The second (alternative) console port is defined by:
+       #define CONFIG_PSC_CONSOLE2 <PSC number>
+
+*) Commands to switch to the second console:
+       setenv stdout serial1
+       setenv stderr serial1
+       setenv stdin serial1
+
+*) Commands to switch to the first console:
+       setenv stdout serial0
+       setenv stderr serial0
+       setenv stdin serial0
+
+*) If a file descriptor is set to "serial" then the
+   current serial device will be used.