Detlev Zundel wrote:
Fortunately we are just working on something like this, Stefano (on CC), should be able to tell you when this will be finished.
Test is finished. I will send the patch. Multiple serials are supported in the same way as they are on the PPC boards.
Javier, at the moment u-boot supports only one serial interface and consequently you cannot enable the other ones. You can use any of FFUART,BTUART or STUART, but u-boot cannot have more than one serial at the same time. The serial driver for PXA27xx does not support it.
After applying the patch I will send, you have to set CONFIG_SERIAL_MULTI in your config file and all serials you want to use:
#define CONFIG_SERIAL_MULTI #define CONFIG_FFUART 1 /* we use FFUART on Conxs */ #define CONFIG_BTUART 1 /* we use BTUART on Conxs */ #define CONFIG_STUART 1 /* we use STUART on Conxs */
You have to provide also a function in your board.c file to return the default serial device, such as:
struct serial_device *default_serial_console (void) { return &serial_ffuart_device; }
or whatever you prefer.
On my target (PXA270) I get: U-Boot 1.2.0-gc7d2ba2d-dirty (Aug 23 2007 - 15:47:09)
DRAM: 64 MB Flash: 32 MB In: serial Out: serial Err: serial Hit any key to stop autoboot: 0 $ coninfo List of available devices: serial 80000003 SIO stdin stdout stderr nulldev 80000003 SIO serial_stuart 00000003 .IO serial_btuart 00000003 .IO serial_ffuart 00000003 .IO
Then you will be able to switch among the serials setting the stdout, stdin and stderr variables. For example, to switch to the BTUART:
setenv stdout serial_btuart setenv stdin serial_btuart
Regards, stefano