s32g274a uart is not working

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s32g274a uart is not working

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kevin_Tai
Contributor I

Hi All,

I have some problem with S32G UART 

1. The environment :

board: S32G274A EVB

os: Linux s32g274aevb 5.4.69

2. The Muxed Function between uart pin and gpio pin

LINFlexD_0:  TX: PC09  RX: PC10

LINFlexD_1:  TX: PC08  RX: PC04

LINFlexD_2:  TX: PK11  RX: PK12

We can see three uart devices ttyLF0, ttyLF1 and ttLF2. But only ttyLF0 is working OK,  ttyLF1 and ttyLF2 are not . 

root@s32g274aevb:~# ls /dev/ttyLF*
/dev/ttyLF0 /dev/ttyLF1 /dev/ttyLF2

I had checked and configured the device tree of uart in the kernel. Is there anything that needs to be modified besides the device tree?

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vimalrajendran
Contributor II

Hi ,

          i am also facing same problem with ttyLF1 port

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