[OpenWrt-Devel] RT5350 UART not working.

[Luis Soltero]

anyone have any ideas on how to get the RT5350 UART working?

here is the error in the log.

[    0.460000] pinctrl core: add 1 pinmux maps
[    0.460000] rt2880-pinmux pinctrl.1: found group selector 2 for uartf
[    0.460000] rt2880-pinmux pinctrl.1: request pin 7 (io7) for 10000500.uart
[    0.460000] rt2880-pinmux pinctrl.1: pin io7 already requested by pinctrl.1; cannot claim for 10000500.uart
[    0.480000] rt2880-pinmux pinctrl.1: pin-7 (10000500.uart) status -22
[    0.480000] rt2880-pinmux pinctrl.1: could not request pin 7 (io7) from group uartf  on device rt2880-pinmux
[    0.510000] of_serial 10000500.uart: Error applying setting, reverse things back
[    0.530000] 10000500.uart: ttyS1 at MMIO 0x10000500 (irq = 13, base_baud = 2500000) is a 16550A

here is the DTS config for the uart.

palmbus at 10000000 {
                 uart at 500 {
                     status = "okay";
                 };
                 i2c at 900 {
                     status = "okay";
                 };
                 gpio0: gpio at 600 {
                     status = "okay";
                 };
                 gpio1: gpio at 660 {
                     status = "okay";
                 };
         };

         pinctrl {
                 state_default: pinctrl0 {
                         gpio {
                                 ralink,group = "i2c", "jtag";
                                 ralink,function = "gpio";
                         };
                         uartf {
                                 ralink,group = "uartf";
                                 ralink,function = "uartf";
                         };
                 };
         };


Any info/hints on this are greatly appreciated.

Thanks,

--luis



-- 


Luis Soltero, Ph.D., MCS
Director of Software Development, CTO
Global Marine Networks, LLC
StarPilot, LLC
Tel: +1.865.379.8723
Fax: +1.865.681.5017
E-Mail: lsoltero at globalmarinenet.net
Web: http://www.globalmarinenet.net
Web: http://www.redportglobal.com
Web: http://www.starpilotllc.com
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