>I've been working with 2.3.99-pre1 with our multiport card. And I found
>a problem on detecting oxsemi chip on kernel 2.3.99-pre1.
>
>
>// channel reset before read IDs
> serial_outp(info, UART_LCR, 0); // to ensure not 0xBF
> serial_icr_write(info,UART_CKS,0);
> serial_icr_write(info,UART_CSR,0); // software reset
> .
>
>Above 3 lines should be added before reading IDs of 950.
Why do you need to do this? The clock select register is automatically
reset to zero after a hardware reset, and I don't see anything in the
16C950 data sheet which indicates that resetting the UART is necessary
before reading the ID bytes.
I have some 16C950 and 16C954 boards, and their of these lines are
necessary.
>If you're interesting about OX16PCI954 based multi port card, Please
>send me e-mail. I have some evaluation boards for developer. Thanks.
I'll send you my U.S. Mail address under separate cover.
- Ted
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This archive was generated by hypermail 2b29 : Thu Mar 23 2000 - 21:00:30 EST