multiple serials in OMAP L-138 EVM

ranchu

Guru 20755 points

Hello,

I need to configure the U-Boot to work with multiple UART'S , and one of them (UART2) is console:

1. I thought that the "right" way to do it, is to add CONFIG_SERIAL_MULTI in the da850evm.h, but on compiling I recieve error from /common/serial.c line 87: "error: #error No default console". even when I tried to add flag config_cons_index, but it didnt solve the error, it seems that the serial.c file does not except this configuration.
2. Another question which comes in mind regarding the multi serial uart's is the flag config_sys_ns16550_clk which is defined as clk of uart2 (in da850.evm.h): what about the clock of the other uarts in regard to each ns16550

I couldn't find any documentation for the serial driver, so I will thank you for any help with regard to my questions.

Best Regards,

Ran

over 14 years ago

0 ranchu over 14 years ago

Guru 20755 points

Hello,

In addition to the previous post, it is interesting to note that if I add in /common/serial.c the following line:
line 45: || defined (CONFIG_MACH_DAVINCI_DA850EVM), and same include in /common/serial.h
then compiler error is solved. Is It correct to add this flags in order to support multiple serials in OMAP L138 EVM ?

Thank you,

Ran

0 Vaibhav Bedia over 14 years ago in reply to ranchu

TI__Expert 5290 points

Ran,

I don't think we have tried out multiple UARTs in U-Boot. This would probably explain why you are having a tough time getting this to work.

I will check if its possible for us to test this (depends on EVM design) and let you know.

Regards,

Vaibhav

0 ranchu over 14 years ago in reply to Vaibhav Bedia

Guru 20755 points

Hello Vaibhav,

I use the OMAP L138 EVM in my tests,

thank you,

Ran

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multiple serials in OMAP L-138 EVM