diff options
Diffstat (limited to 'include/uapi/linux/serial_reg.h')
| -rw-r--r-- | include/uapi/linux/serial_reg.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/include/uapi/linux/serial_reg.h b/include/uapi/linux/serial_reg.h index bab3b39266cc..08b3527e1b93 100644 --- a/include/uapi/linux/serial_reg.h +++ b/include/uapi/linux/serial_reg.h @@ -44,6 +44,11 @@ #define UART_IIR_RX_TIMEOUT 0x0c /* OMAP RX Timeout interrupt */ #define UART_IIR_XOFF 0x10 /* OMAP XOFF/Special Character */ #define UART_IIR_CTS_RTS_DSR 0x20 /* OMAP CTS/RTS/DSR Change */ +#define UART_IIR_64BYTE_FIFO 0x20 /* 16750 64 bytes FIFO */ +#define UART_IIR_FIFO_ENABLED 0xc0 /* FIFOs enabled / port type identification */ +#define UART_IIR_FIFO_ENABLED_8250 0x00 /* 8250: no FIFO */ +#define UART_IIR_FIFO_ENABLED_16550 0x80 /* 16550: (broken/unusable) FIFO */ +#define UART_IIR_FIFO_ENABLED_16550A 0xc0 /* 16550A: FIFO enabled */ #define UART_FCR 2 /* Out: FIFO Control Register */ #define UART_FCR_ENABLE_FIFO 0x01 /* Enable the FIFO */ |