Serial device /dev/ttyS1 not working in Kernel 4.1.17-bone-rt-r18

RobertCNelson / bb-kernel

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Serial device /dev/ttyS1 not working in Kernel 4.1.17-bone-rt-r18 #22

Closed QuickJack closed 8 years ago

QuickJack commented 8 years ago

Device names have changed from /dev/ttyO* to /dev/ttyS*. I have loaded the overlay for UART1 using uEnv.txt by adding cape_enable=bone_capemgr.enable_partno=BB-UART1

The driver seems to get loaded according to

dmesg|grep ttyS1 [ 3.722985] 48022000.serial: ttyS1 at MMIO 0x48022000 (irq = 155, base_baud = 3000000) is a 8250

No data is output on the TXD1 line. The same test works perfectly using Kernel 3.8.13 and /dev/ttyO1.

RobertCNelson commented 8 years ago

Sorry I fixed this in r19..

https://github.com/RobertCNelson/bb-kernel/commits/am33x-rt-v4.1

Only change..