Hi Mike,
i tested the command watch -n1 "cat /proc/interrupts". Below is the result.
Please suggest. I can find UART1 entry.
CPU0
4: 0 INTC omap2_elm
12: 778 INTC edma
14: 0 INTC edma_error
17: 0 INTC cppi41_dma
18: 0 INTC musb-hdrc.0
19: 1 INTC musb-hdrc.1
36: 227264 INTC da8xx_lcdc
40: 0 INTC cpsw
43: 0 INTC cpsw
64: 2587 INTC mmc0
68: 115938 INTC gp timer
70: 420 INTC omap_i2c
72: 21600 INTC OMAP UART0
73: 5976 INTC OMAP UART1
93: 45288 INTC cpsw
94: 156 INTC cpsw
166: 0 GPIO mmc0
260: 0 GPIO tps65910
374: 0 tps65910 rtc0
Err: 0
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