diff options
Diffstat (limited to 'cpu/mc9328/serial.c')
| -rw-r--r-- | cpu/mc9328/serial.c | 133 | 
1 files changed, 0 insertions, 133 deletions
| diff --git a/cpu/mc9328/serial.c b/cpu/mc9328/serial.c deleted file mode 100644 index 8dcfb8027..000000000 --- a/cpu/mc9328/serial.c +++ /dev/null @@ -1,133 +0,0 @@ -/* - * cpu/mc9328/serial.c - * - * (c) Copyright 2004 - * Techware Information Technology, Inc. - * http://www.techware.com.tw/ - * - * Ming-Len Wu <minglen_wu@techware.com.tw> - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of - * the License, or (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, - * MA 02111-1307 USA - */ - -#include <common.h> -#include <mc9328.h> - -#if defined(CONFIG_UART1) -/* GPIO PORT B 		*/ - -#define reg_GIUS	MX1_GIUS_C -#define reg_GPR		MX1_GPR_B -#define GPIO_MASK	0xFFFFE1FF -#define UART_BASE	0x00206000 - -#elif defined (CONFIG_UART2) -/* GPIO PORT C  	*/ - -#define reg_GIUS	MX1_GIUS_C -#define reg_GPR		MX1_GPR_C -#define GPIO_MASK 	0x0FFFFFFF -#define UART_BASE	0x207000 - -#endif - -#define reg_URXD	(*((volatile u32 *)(UART_BASE+0x00))) -#define reg_UTXD	(*((volatile u32 *)(UART_BASE+0x40))) -#define reg_UCR1	(*((volatile u32 *)(UART_BASE+0x80))) -#define reg_UCR2	(*((volatile u32 *)(UART_BASE+0x84))) -#define reg_UCR3	(*((volatile u32 *)(UART_BASE+0x88))) -#define reg_UCR4	(*((volatile u32 *)(UART_BASE+0x8C))) -#define reg_UFCR	(*((volatile u32 *)(UART_BASE+0x90))) -#define reg_USR1	(*((volatile u32 *)(UART_BASE+0x94))) -#define reg_USR2	(*((volatile u32 *)(UART_BASE+0x98))) -#define reg_UESC	(*((volatile u32 *)(UART_BASE+0x9C))) -#define reg_UTIM	(*((volatile u32 *)(UART_BASE+0xA0))) -#define reg_UBIR	(*((volatile u32 *)(UART_BASE+0xA4))) -#define reg_UBMR	(*((volatile u32 *)(UART_BASE+0xA8))) -#define reg_UBRC	(*((volatile u32 *)(UART_BASE+0xAC))) - -#define TXFE_MASK	0x4000  	/* Tx buffer empty	*/ -#define RDR_MASK	0x0001		/* receive data ready	*/ - -void serial_setbrg (void) { - -	/* config I/O pins for UART 	*/ -	reg_GIUS 	&= GPIO_MASK; -	reg_GPR		&= GPIO_MASK; - -	/* config UART			*/ -	reg_UCR1 	= 5; -	reg_UCR2 	= 0x4027; -	reg_UCR4 	= 1; -	reg_UFCR 	= 0xA81; - -	reg_UBIR 	= 0xF; -	reg_UBMR 	= 0x8A; -	reg_UBRC 	= 8; -} - -/* - * Initialise the serial port with the given baudrate. The settings - * are always 8 data bits, no parity, 1 stop bit, no start bits. - * - */ - -int serial_init (void) { -	serial_setbrg (); - -	return (0); -} - -/* - * Read a single byte from the serial port. Returns 1 on success, 0 - * otherwise. When the function is succesfull, the character read is - * written into its argument c. - */ -int serial_getc (void) { - -	while (!(reg_USR2 & RDR_MASK)) ; 	/* wait until RDR bit set 		*/ - -	return (u8)reg_URXD; -} - -/* - * Output a single byte to the serial port. - */ -void serial_putc (const char c) { - -	while (!(reg_USR2 & TXFE_MASK));	/* wait until TXFE bit set		*/ - -	reg_UTXD = (u16) c; - -	if (c == '\n')	{			/* carriage return ? append line-feed	*/ -		while (!(reg_USR2 & TXFE_MASK));	/* wait until TXFE bit set	*/ -		reg_UTXD = '\r'; -	} - -} - -/* - * Test whether a character is in the RX buffer - */ -int serial_tstc (void) { -	return reg_USR2 & RDR_MASK; -} - -void serial_puts (const char *s) { -	while (*s) { -		serial_putc (*s++); -	} -} |