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Diffstat (limited to 'include/asm-arm/arch-l7200/serial_l7200.h')
-rw-r--r--include/asm-arm/arch-l7200/serial_l7200.h101
1 files changed, 101 insertions, 0 deletions
diff --git a/include/asm-arm/arch-l7200/serial_l7200.h b/include/asm-arm/arch-l7200/serial_l7200.h
new file mode 100644
index 000000000000..238c595d97ea
--- /dev/null
+++ b/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 (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