Commit 71fc6c55 authored by wdenk's avatar wdenk
Browse files

Initial revision

parent 4483b581
/*
* SGS M48-T59Y TOD/NVRAM Driver
*
* (C) Copyright 2000
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
*
* (C) Copyright 1999, by Curt McDowell, 08-06-99, Broadcom Corp.
*
* (C) Copyright 2001, James Dougherty, 07/18/01, Broadcom Corp.
*
* See file CREDITS for list of people who contributed to this
* project.
*
* 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
*/
#ifndef __M48_T59_Y_H
#define __M48_T59_Y_H
/*
* M48 T59Y -Timekeeping Battery backed SRAM.
*/
int m48_tod_init(void);
int m48_tod_set(int year,
int month,
int day,
int hour,
int minute,
int second);
int m48_tod_get(int *year,
int *month,
int *day,
int *hour,
int *minute,
int *second);
int m48_tod_get_second(void);
void m48_watchdog_arm(int usec);
#endif /*!__M48_T59_Y_H */
/*
* COM1 NS16550 support
* originally from linux source (arch/ppc/boot/ns16550.c)
* modified to use CFG_ISA_MEM and new defines
*/
#include <config.h>
#include "ns16550.h"
typedef struct NS16550 *NS16550_t;
const NS16550_t COM_PORTS[] = { (NS16550_t) ((CFG_EUMB_ADDR) + 0x4500), (NS16550_t) ((CFG_EUMB_ADDR) + 0x4600)};
volatile struct NS16550 *
NS16550_init(int chan, int baud_divisor)
{
volatile struct NS16550 *com_port;
com_port = (struct NS16550 *) COM_PORTS[chan];
com_port->ier = 0x00;
com_port->lcr = LCR_BKSE; /* Access baud rate */
com_port->dll = baud_divisor & 0xff; /* 9600 baud */
com_port->dlm = (baud_divisor >> 8) & 0xff;
com_port->lcr = LCR_8N1; /* 8 data, 1 stop, no parity */
com_port->mcr = MCR_RTS; /* RTS/DTR */
com_port->fcr = FCR_FIFO_EN | FCR_RXSR | FCR_TXSR; /* Clear & enable FIFOs */
return (com_port);
}
void
NS16550_reinit(volatile struct NS16550 *com_port, int baud_divisor)
{
com_port->ier = 0x00;
com_port->lcr = LCR_BKSE; /* Access baud rate */
com_port->dll = baud_divisor & 0xff; /* 9600 baud */
com_port->dlm = (baud_divisor >> 8) & 0xff;
com_port->lcr = LCR_8N1; /* 8 data, 1 stop, no parity */
com_port->mcr = MCR_RTS; /* RTS/DTR */
com_port->fcr = FCR_FIFO_EN | FCR_RXSR | FCR_TXSR; /* Clear & enable FIFOs */
}
void NS16550_putc(volatile struct NS16550 *com_port, unsigned char c)
{
while ((com_port->lsr & LSR_THRE) == 0) ;
com_port->thr = c;
}
unsigned char
NS16550_getc(volatile struct NS16550 *com_port)
{
while ((com_port->lsr & LSR_DR) == 0) ;
return (com_port->rbr);
}
int NS16550_tstc(volatile struct NS16550 *com_port)
{
return ((com_port->lsr & LSR_DR) != 0);
}
/*
* NS16550 Serial Port
* originally from linux source (arch/ppc/boot/ns16550.h)
* modified slightly to
* have addresses as offsets from CFG_ISA_BASE
* added a few more definitions
* added prototypes for ns16550.c
* reduced no of com ports to 2
* modifications (c) Rob Taylor, Flying Pig Systems. 2000.
* further modified to support the 8245 duart
* modifications (c) Paul Jimenez, Musenki, Inc. 2001.
*/
struct NS16550
{
unsigned char rbrthrdlb; /* 0 */
unsigned char ierdmb; /* 1 */
unsigned char iirfcrafr; /* 2 */
unsigned char lcr; /* 3 */
unsigned char mcr; /* 4 */
unsigned char lsr; /* 5 */
unsigned char msr; /* 6 */
unsigned char scr; /* 7 */
unsigned char reserved[2]; /* 8 & 9 */
unsigned char dsr; /* 10 */
unsigned char dcr; /* 11 */
};
#define rbr rbrthrdlb
#define thr rbrthrdlb
#define dll rbrthrdlb
#define ier ierdmb
#define dlm ierdmb
#define iir iirfcrafr
#define fcr iirfcrafr
#define afr iirfcrafr
#define FCR_FIFO_EN 0x01 /*fifo enable*/
#define FCR_RXSR 0x02 /*reciever soft reset*/
#define FCR_TXSR 0x04 /*transmitter soft reset*/
#define FCR_DMS 0x08 /* DMA Mode Select */
#define MCR_RTS 0x02 /* Readyu to Send */
#define MCR_LOOP 0x10 /* Local loopback mode enable */
/* #define MCR_DTR 0x01 noton 8245 duart */
/* #define MCR_DMA_EN 0x04 noton 8245 duart */
/* #define MCR_TX_DFR 0x08 noton 8245 duart */
#define LCR_WLS_MSK 0x03 /* character length slect mask*/
#define LCR_WLS_5 0x00 /* 5 bit character length */
#define LCR_WLS_6 0x01 /* 6 bit character length */
#define LCR_WLS_7 0x02 /* 7 bit character length */
#define LCR_WLS_8 0x03 /* 8 bit character length */
#define LCR_STB 0x04 /* Number of stop Bits, off = 1, on = 1.5 or 2) */
#define LCR_PEN 0x08 /* Parity eneble*/
#define LCR_EPS 0x10 /* Even Parity Select*/
#define LCR_STKP 0x20 /* Stick Parity*/
#define LCR_SBRK 0x40 /* Set Break*/
#define LCR_BKSE 0x80 /* Bank select enable - aka DLAB on 8245 */
#define LSR_DR 0x01 /* Data ready */
#define LSR_OE 0x02 /* Overrun */
#define LSR_PE 0x04 /* Parity error */
#define LSR_FE 0x08 /* Framing error */
#define LSR_BI 0x10 /* Break */
#define LSR_THRE 0x20 /* Xmit holding register empty */
#define LSR_TEMT 0x40 /* Xmitter empty */
#define LSR_ERR 0x80 /* Error */
/* useful defaults for LCR*/
#define LCR_8N1 0x03
volatile struct NS16550 * NS16550_init(int chan, int baud_divisor);
void NS16550_putc(volatile struct NS16550 *com_port, unsigned char c);
unsigned char NS16550_getc(volatile struct NS16550 *com_port);
int NS16550_tstc(volatile struct NS16550 *com_port);
void NS16550_reinit(volatile struct NS16550 *com_port, int baud_divisor);
/******************************************************************************/
/* */
/* Broadcom BCM5700 Linux Network Driver, Copyright (c) 2000 Broadcom */
/* Corporation. */
/* All rights reserved. */
/* */
/* 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, located in the file LICENSE. */
/* */
/* History: */
/* 02/25/00 Hav Khauv Initial version. */
/******************************************************************************/
#ifndef BITS_H
#define BITS_H
/******************************************************************************/
/* Bit Mask definitions */
/******************************************************************************/
#define BIT_NONE 0x00
#define BIT_0 0x01
#define BIT_1 0x02
#define BIT_2 0x04
#define BIT_3 0x08
#define BIT_4 0x10
#define BIT_5 0x20
#define BIT_6 0x40
#define BIT_7 0x80
#define BIT_8 0x0100
#define BIT_9 0x0200
#define BIT_10 0x0400
#define BIT_11 0x0800
#define BIT_12 0x1000
#define BIT_13 0x2000
#define BIT_14 0x4000
#define BIT_15 0x8000
#define BIT_16 0x010000
#define BIT_17 0x020000
#define BIT_18 0x040000
#define BIT_19 0x080000
#define BIT_20 0x100000
#define BIT_21 0x200000
#define BIT_22 0x400000
#define BIT_23 0x800000
#define BIT_24 0x01000000
#define BIT_25 0x02000000
#define BIT_26 0x04000000
#define BIT_27 0x08000000
#define BIT_28 0x10000000
#define BIT_29 0x20000000
#define BIT_30 0x40000000
#define BIT_31 0x80000000
#endif /* BITS_H */
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