[OpenWrt-Devel] RT5350 UART not working.

[John Crispin]

ermmm ... i booted rt5350 on the weekend with uccess .. but that has
nothing to say. which boar is this ? i assume the small asiarf one ?



On 01/12/2014 13:40, Luis Soltero wrote:
> 
> 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
> 
> 
> 
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