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Diffstat (limited to 'board/xilinx/ml300/serial.c')
| -rw-r--r-- | board/xilinx/ml300/serial.c | 155 | 
1 files changed, 155 insertions, 0 deletions
| diff --git a/board/xilinx/ml300/serial.c b/board/xilinx/ml300/serial.c new file mode 100644 index 000000000..19bcc6ff3 --- /dev/null +++ b/board/xilinx/ml300/serial.c @@ -0,0 +1,155 @@ +/* + *     Author: Xilinx, Inc. + * + * + *     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. + * + * + *     XILINX IS PROVIDING THIS DESIGN, CODE, OR INFORMATION "AS IS" AS A + *     COURTESY TO YOU. BY PROVIDING THIS DESIGN, CODE, OR INFORMATION AS + *     ONE POSSIBLE IMPLEMENTATION OF THIS FEATURE, APPLICATION OR STANDARD, + *     XILINX IS MAKING NO REPRESENTATION THAT THIS IMPLEMENTATION IS FREE + *     FROM ANY CLAIMS OF INFRINGEMENT, AND YOU ARE RESPONSIBLE FOR OBTAINING + *     ANY THIRD PARTY RIGHTS YOU MAY REQUIRE FOR YOUR IMPLEMENTATION. + *     XILINX EXPRESSLY DISCLAIMS ANY WARRANTY WHATSOEVER WITH RESPECT TO + *     THE ADEQUACY OF THE IMPLEMENTATION, INCLUDING BUT NOT LIMITED TO ANY + *     WARRANTIES OR REPRESENTATIONS THAT THIS IMPLEMENTATION IS FREE FROM + *     CLAIMS OF INFRINGEMENT, IMPLIED WARRANTIES OF MERCHANTABILITY AND + *     FITNESS FOR A PARTICULAR PURPOSE. + * + * + *     Xilinx hardware products are not intended for use in life support + *     appliances, devices, or systems. Use in such applications is + *     expressly prohibited. + * + * + *     (c) Copyright 2002-2004 Xilinx Inc. + *     All rights reserved. + * + * + *     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., + *     675 Mass Ave, Cambridge, MA 02139, USA. + * + */ + +#include <asm/u-boot.h> +#include <asm/processor.h> +#include <common.h> +#include <command.h> +#include <configs/ml300.h> +#include "xparameters.h" + +#define USE_CHAN1 \ +	((defined XPAR_UARTNS550_0_BASEADDR) && (defined CFG_INIT_CHAN1)) +#define USE_CHAN2 \ +	((defined XPAR_UARTNS550_1_BASEADDR) && (defined CFG_INIT_CHAN2)) + +#if USE_CHAN1 +#include <ns16550.h> +#endif + +#if USE_CHAN1 +const NS16550_t COM_PORTS[] = { (NS16550_t) (XPAR_UARTNS550_0_BASEADDR + 3) +#if USE_CHAN2 +	    , (NS16550_t) (XPAR_UARTNS550_1_BASEADDR + 3) +#endif +}; +#endif + +int +serial_init(void) +{ +#if USE_CHAN1 +	DECLARE_GLOBAL_DATA_PTR; +	int clock_divisor; + +	clock_divisor = XPAR_UARTNS550_0_CLOCK_FREQ_HZ / 16 / gd->baudrate; +	(void) NS16550_init(COM_PORTS[0], clock_divisor); +#if USE_CHAN2 +	clock_divisor = XPAR_UARTNS550_1_CLOCK_FREQ_HZ / 16 / gd->baudrate; +	(void) NS16550_init(COM_PORTS[1], clock_divisor); +#endif +#endif +	return 0; + +} + +void +serial_putc(const char c) +{ +	if (c == '\n') +		NS16550_putc(COM_PORTS[CFG_DUART_CHAN], '\r'); + +	NS16550_putc(COM_PORTS[CFG_DUART_CHAN], c); +} + +int +serial_getc(void) +{ +	return NS16550_getc(COM_PORTS[CFG_DUART_CHAN]); +} + +int +serial_tstc(void) +{ +	return NS16550_tstc(COM_PORTS[CFG_DUART_CHAN]); +} + +void +serial_setbrg(void) +{ +#if USE_CHAN1 +	DECLARE_GLOBAL_DATA_PTR; +	int clock_divisor; + +	clock_divisor = XPAR_UARTNS550_0_CLOCK_FREQ_HZ / 16 / gd->baudrate; +	NS16550_reinit(COM_PORTS[0], clock_divisor); +#if USE_CHAN2 +	clock_divisor = XPAR_UARTNS550_1_CLOCK_FREQ_HZ / 16 / gd->baudrate; +	NS16550_reinit(COM_PORTS[1], clock_divisor); +#endif +#endif +} + +void +serial_puts(const char *s) +{ +	while (*s) { +		serial_putc(*s++); +	} +} + +#if (CONFIG_COMMANDS & CFG_CMD_KGDB) +void +kgdb_serial_init(void) +{ +} + +void +putDebugChar(int c) +{ +	serial_putc(c); +} + +void +putDebugStr(const char *str) +{ +	serial_puts(str); +} + +int +getDebugChar(void) +{ +	return serial_getc(); +} + +void +kgdb_interruptible(int yes) +{ +	return; +} +#endif				/* CFG_CMD_KGDB */ |