mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-07-07 19:56:18 +09:00
3e38691e8f
Add IDMA example code (tested on 8260 only) * Add support for Purple Board (MIPS64 5Kc) * Add support for MIPS64 5Kc CPUs * Fix missing setting of "loadaddr" and "bootfile" on ARM and MIPS * Patch by Denis Peter, 04 Apr 2003: - update MIP405-4 board * Patches by Denis Peter, 03 April 2003: - fix PCI IRQs on MPL boards - fix two more un-relocated pointer problems * Fix behaviour of "run" command: - print error message iv variable does not exist - terminate processing of arguments in case of error * Patches by Peter Figuli, 10 Mar 2003 - Add support for BTUART on PXA platform - Add support for WEP EP250 (PXA) board * Fix flash problems on INCA-IP; add tool to allow bruning images to flash using a BDI2000 * Implement fix for I2C Edge Conditions problem for all boards that use the bit-banging driver (common/soft_i2c.c) * Add patches by Robert Schwebel, 31 Mar 2003: - csb226 board: bring in sync with innokom/memsetup.S - csb226 board: fix MDREFR handling - misc doc fixes / extensions - innokom board: cleanup, MDREFR fix in memsetup.S, config update - add BOOT_PROGRESS to armlinux.c
167 lines
3.5 KiB
C
167 lines
3.5 KiB
C
/*
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* (C) Copyright 2002
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* Wolfgang Denk, DENX Software Engineering, <wd@denx.de>
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*
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* (C) Copyright 2002
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* Sysgo Real-Time Solutions, GmbH <www.elinos.com>
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* Marius Groeger <mgroeger@sysgo.de>
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*
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* (C) Copyright 2002
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* Sysgo Real-Time Solutions, GmbH <www.elinos.com>
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* Alex Zuepke <azu@sysgo.de>
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*
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* Copyright (C) 1999 2000 2001 Erik Mouw (J.A.K.Mouw@its.tudelft.nl)
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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*/
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#include <common.h>
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#include <asm/arch/pxa-regs.h>
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void serial_setbrg (void)
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{
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DECLARE_GLOBAL_DATA_PTR;
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unsigned int quot = 0;
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if (gd->baudrate == 1200)
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quot = 192;
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else if (gd->baudrate == 9600)
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quot = 96;
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else if (gd->baudrate == 19200)
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quot = 48;
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else if (gd->baudrate == 38400)
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quot = 24;
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else if (gd->baudrate == 57600)
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quot = 16;
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else if (gd->baudrate == 115200)
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quot = 8;
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else
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hang ();
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#ifdef CONFIG_FFUART
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CKEN |= CKEN6_FFUART;
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FFIER = 0; /* Disable for now */
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FFFCR = 0; /* No fifos enabled */
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/* set baud rate */
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FFLCR = LCR_WLS0 | LCR_WLS1 | LCR_DLAB;
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FFDLL = quot & 0xff;
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FFDLH = quot >> 8;
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FFLCR = LCR_WLS0 | LCR_WLS1;
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FFIER = IER_UUE; /* Enable FFUART */
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#elif defined(CONFIG_BTUART)
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CKEN |= CKEN7_BTUART;
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BTIER = 0;
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BTFCR = 0;
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/* set baud rate */
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BTLCR = LCR_DLAB;
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BTDLL = quot & 0xff;
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BTDLH = quot >> 8;
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BTLCR = LCR_WLS0 | LCR_WLS1;
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BTIER = IER_UUE; /* Enable BFUART */
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#elif defined(CONFIG_STUART)
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#error "Bad: not implemented yet!"
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#else
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#error "Bad: you didn't configured serial ..."
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#endif
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}
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/*
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* Initialise the serial port with the given baudrate. The settings
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* are always 8 data bits, no parity, 1 stop bit, no start bits.
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*
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*/
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int serial_init (void)
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{
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serial_setbrg ();
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return (0);
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}
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/*
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* Output a single byte to the serial port.
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*/
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void serial_putc (const char c)
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{
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#ifdef CONFIG_FFUART
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/* wait for room in the tx FIFO on FFUART */
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while ((FFLSR & LSR_TEMT) == 0);
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FFTHR = c;
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#elif defined(CONFIG_BTUART)
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while ((BTLSR & LSR_TEMT ) == 0 );
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BTTHR = c;
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#elif defined(CONFIG_STUART)
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#endif
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/* If \n, also do \r */
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if (c == '\n')
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serial_putc ('\r');
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}
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/*
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* Read a single byte from the serial port. Returns 1 on success, 0
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* otherwise. When the function is succesfull, the character read is
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* written into its argument c.
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*/
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int serial_tstc (void)
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{
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#ifdef CONFIG_FFUART
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return FFLSR & LSR_DR;
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#elif defined(CONFIG_BTUART)
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return BTLSR & LSR_DR;
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#elif defined(CONFIG_STUART)
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#endif
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}
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/*
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* Read a single byte from the serial port. Returns 1 on success, 0
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* otherwise. When the function is succesfull, the character read is
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* written into its argument c.
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*/
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int serial_getc (void)
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{
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#ifdef CONFIG_FFUART
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while (!(FFLSR & LSR_DR));
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return (char) FFRBR & 0xff;
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#elif defined(CONFIG_BTUART)
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while (!(BTLSR & LSR_DR));
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return (char) BTRBR & 0xff;
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#elif defined(CONFIG_STUART)
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#endif
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}
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void
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serial_puts (const char *s)
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{
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while (*s) {
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serial_putc (*s++);
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}
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}
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