Hi David, I studied this driver and few other examples and I have one question regarding the driver configuration: Which field must be initialized in the plat_serial8250_port structure: unsigned long iobase; /* io base address */ void __iomem *membase; /* ioremap cookie or NULL */ resource_size_t mapbase; /* resource base */ Some drivers init only one of them, other two fields. My UART is located at 0x1bf01000, can I put this value in all those fields? Thanks, Andrei -----Original Message----- From: David Daney [mailto:ddaney@xxxxxxxxxxxxxxxxxx] Sent: Friday, October 22, 2010 3:31 PM To: Ardelean, Andrei Cc: linux-mips@xxxxxxxxxxxxxx Subject: Re: Is it any serial8250 platform driver available? On 10/22/2010 12:23 PM, Ardelean, Andrei wrote: > Hi, > > I am porting MIPS Linux from MALTA to a new board. I ported early > console code from malta_console.c and I am looking now to use a > interrupt driven driver for TTY. My UART is compatible with 8250 (1 UART > port only) but the UART registers are directly mapped in CPU memory map. > There is no PCI bus. My problem is that the driver implemented in 8250.c > is very complex and it seems to be hardcode for ISA bus, is it any > simple platform UART driver available to be directly mapped in the CPU > space? Can you give me some advice what would be a good approach for my > case? > Many chips have 8250 compatible ports and use 8250.c. See arch/mips/cavium-octeon/serial.c David Daeny
