Re: [PATCH V2 1/1] serial: 8250_pci: add RS485 for F81504/508/512

2015-07-29 Thread Jakub Kiciński
On Tue, 28 Jul 2015 11:59:24 +0800, Peter Hung wrote: > Add RS485 control for Fintek F81504/508/512 > > F81504/508/512 can control their RTS with H/W mode. > PCI configuration space for each port is 0x40 + idx * 8 + 7. > > When it set with 0x01, it's configured with RS232 mode. > RTS is controlle

[PATCH V2 1/1] serial: 8250_pci: add RS485 for F81504/508/512

2015-07-27 Thread Peter Hung
Add RS485 control for Fintek F81504/508/512 F81504/508/512 can control their RTS with H/W mode. PCI configuration space for each port is 0x40 + idx * 8 + 7. When it set with 0x01, it's configured with RS232 mode. RTS is controlled by MCR. When it set with 0x11, it's configured with RS485 mode. R