diff options
Diffstat (limited to 'drivers/serial/serial_ixp.c')
| -rw-r--r-- | drivers/serial/serial_ixp.c | 130 | 
1 files changed, 0 insertions, 130 deletions
diff --git a/drivers/serial/serial_ixp.c b/drivers/serial/serial_ixp.c deleted file mode 100644 index b9d0f5bfa..000000000 --- a/drivers/serial/serial_ixp.c +++ /dev/null @@ -1,130 +0,0 @@ -/* - * (C) Copyright 2002 - * Wolfgang Denk, DENX Software Engineering, <wd@denx.de> - * - * (C) Copyright 2002 - * Sysgo Real-Time Solutions, GmbH <www.elinos.com> - * Marius Groeger <mgroeger@sysgo.de> - * - * (C) Copyright 2002 - * Sysgo Real-Time Solutions, GmbH <www.elinos.com> - * Alex Zuepke <azu@sysgo.de> - * - * Copyright (C) 1999 2000 2001 Erik Mouw (J.A.K.Mouw@its.tudelft.nl) - * - * SPDX-License-Identifier:	GPL-2.0+ - */ - -#include <common.h> -#include <asm/arch/ixp425.h> -#include <watchdog.h> -#include <serial.h> -#include <linux/compiler.h> - -/* - *               14.7456 MHz - * Baud Rate = -------------- - *              16 x Divisor - */ -#define SERIAL_CLOCK 921600 - -DECLARE_GLOBAL_DATA_PTR; - -static void ixp_serial_setbrg(void) -{ -	unsigned int quot = 0; -	int uart = CONFIG_SYS_IXP425_CONSOLE; - -	if ((gd->baudrate <= SERIAL_CLOCK) && (SERIAL_CLOCK % gd->baudrate == 0)) -		quot = SERIAL_CLOCK / gd->baudrate; -	else -		hang (); - -	IER(uart) = 0;					/* Disable for now */ -	FCR(uart) = 0;					/* No fifos enabled */ - -	/* set baud rate */ -	LCR(uart) = LCR_WLS0 | LCR_WLS1 | LCR_DLAB; -	DLL(uart) = quot & 0xff; -	DLH(uart) = quot >> 8; -	LCR(uart) = LCR_WLS0 | LCR_WLS1; -#ifdef CONFIG_SERIAL_RTS_ACTIVE -	MCR(uart) = MCR_RTS;				/* set RTS active */ -#else -	MCR(uart) = 0;					/* set RTS inactive */ -#endif -	IER(uart) = IER_UUE; -} - -/* - * Initialise the serial port with the given baudrate. The settings - * are always 8 data bits, no parity, 1 stop bit, no start bits. - * - */ -static int ixp_serial_init(void) -{ -	serial_setbrg (); - -	return (0); -} - - -/* - * Output a single byte to the serial port. - */ -static void ixp_serial_putc(const char c) -{ -	/* wait for room in the tx FIFO on UART */ -	while ((LSR(CONFIG_SYS_IXP425_CONSOLE) & LSR_TEMT) == 0) -		WATCHDOG_RESET();	/* Reset HW Watchdog, if needed */ - -	THR(CONFIG_SYS_IXP425_CONSOLE) = c; - -	/* If \n, also do \r */ -	if (c == '\n') -		serial_putc ('\r'); -} - -/* - * 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. - */ -static int ixp_serial_tstc(void) -{ -	return LSR(CONFIG_SYS_IXP425_CONSOLE) & LSR_DR; -} - -/* - * 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. - */ -static int ixp_serial_getc(void) -{ -	while (!(LSR(CONFIG_SYS_IXP425_CONSOLE) & LSR_DR)) -		WATCHDOG_RESET();	/* Reset HW Watchdog, if needed */ - -	return (char) RBR(CONFIG_SYS_IXP425_CONSOLE) & 0xff; -} - -static struct serial_device ixp_serial_drv = { -	.name	= "ixp_serial", -	.start	= ixp_serial_init, -	.stop	= NULL, -	.setbrg	= ixp_serial_setbrg, -	.putc	= ixp_serial_putc, -	.puts	= default_serial_puts, -	.getc	= ixp_serial_getc, -	.tstc	= ixp_serial_tstc, -}; - -void ixp_serial_initialize(void) -{ -	serial_register(&ixp_serial_drv); -} - -__weak struct serial_device *default_serial_console(void) -{ -	return &ixp_serial_drv; -}  |