patch-2.3.99-pre9 linux/include/asm-arm/arch-l7200/serial_l7200.h

• Lines: 102
• Date: Mon May 15 12:00:33 2000
• Orig file: v2.3.99-pre8/linux/include/asm-arm/arch-l7200/serial_l7200.h
• Orig date: Wed Dec 31 16:00:00 1969

diff -u --recursive --new-file v2.3.99-pre8/linux/include/asm-arm/arch-l7200/serial_l7200.h linux/include/asm-arm/arch-l7200/serial_l7200.h
@@ -0,0 +1,101 @@
+/*
+ * linux/include/asm-arm/arch-l7200/serial_l7200.h
+ *
+ * Copyright (c) 2000 Steven Hill ([email protected])
+ *
+ * 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