- /*
- * linux/include/asm-arm/arch-l7200/serial_l7200.h
- *
- * Copyright (c) 2000 Steven Hill (sjhill@cotw.com)
- *
- * Changelog:
- * 05-09-2000 SJH Created
- */
- #ifndef __ASM_ARCH_SERIAL_L7200_H
- #define __ASM_ARCH_SERIAL_L7200_H
- #include <asm/arch/memory.h>
- /*
- * This assumes you have a 3.6864 MHz clock for your UART.
- */
- #define BASE_BAUD 3686400
- /*
- * UART base register addresses
- */
- #define UART1_BASE (IO_BASE + 0x00044000)
- #define UART2_BASE (IO_BASE + 0x00045000)
- /*
- * UART register offsets
- */
- #define UARTDR 0x00 /* Tx/Rx data */
- #define RXSTAT 0x04 /* Rx status */
- #define H_UBRLCR 0x08 /* mode register high */
- #define M_UBRLCR 0x0C /* mode reg mid (MSB of buad)*/
- #define L_UBRLCR 0x10 /* mode reg low (LSB of baud)*/
- #define UARTCON 0x14 /* control register */
- #define UARTFLG 0x18 /* flag register */
- #define UARTINTSTAT 0x1C /* FIFO IRQ status register */
- #define UARTINTMASK 0x20 /* FIFO IRQ mask register */
- /*
- * UART baud rate register values
- */
- #define BR_110 0x827
- #define BR_1200 0x06e
- #define BR_2400 0x05f
- #define BR_4800 0x02f
- #define BR_9600 0x017
- #define BR_14400 0x00f
- #define BR_19200 0x00b
- #define BR_38400 0x005
- #define BR_57600 0x003
- #define BR_76800 0x002
- #define BR_115200 0x001
- /*
- * Receiver status register (RXSTAT) mask values
- */
- #define RXSTAT_NO_ERR 0x00 /* No error */
- #define RXSTAT_FRM_ERR 0x01 /* Framing error */
- #define RXSTAT_PAR_ERR 0x02 /* Parity error */
- #define RXSTAT_OVR_ERR 0x04 /* Overrun error */
- /*
- * High byte of UART bit rate and line control register (H_UBRLCR) values
- */
- #define UBRLCR_BRK 0x01 /* generate break on tx */
- #define UBRLCR_PEN 0x02 /* enable parity */
- #define UBRLCR_PDIS 0x00 /* disable parity */
- #define UBRLCR_EVEN 0x04 /* 1= even parity,0 = odd parity */
- #define UBRLCR_STP2 0x08 /* transmit 2 stop bits */
- #define UBRLCR_FIFO 0x10 /* enable FIFO */
- #define UBRLCR_LEN5 0x60 /* word length5 */
- #define UBRLCR_LEN6 0x40 /* word length6 */
- #define UBRLCR_LEN7 0x20 /* word length7 */
- #define UBRLCR_LEN8 0x00 /* word length8 */
- /*
- * UART control register (UARTCON) values
- */
- #define UARTCON_UARTEN 0x01 /* Enable UART */
- #define UARTCON_DMAONERR 0x08 /* Mask RxDmaRq when errors occur */
- /*
- * UART flag register (UARTFLG) mask values
- */
- #define UARTFLG_UTXFF 0x20 /* Transmit FIFO full */
- #define UARTFLG_URXFE 0x10 /* Receiver FIFO empty */
- #define UARTFLG_UBUSY 0x08 /* Transmitter busy */
- #define UARTFLG_DCD 0x04 /* Data carrier detect */
- #define UARTFLG_DSR 0x02 /* Data set ready */
- #define UARTFLG_CTS 0x01 /* Clear to send */
- /*
- * UART interrupt status/clear registers (UARTINTSTAT/CLR) values
- */
- #define UART_TXINT 0x01 /* TX interrupt */
- #define UART_RXINT 0x02 /* RX interrupt */
- #define UART_RXERRINT 0x04 /* RX error interrupt */
- #define UART_MSINT 0x08 /* Modem Status interrupt */
- #define UART_UDINT 0x10 /* UART Disabled interrupt */
- #define UART_ALLIRQS 0x1f /* All interrupts */
- #endif