+++ /dev/null
-/*
- * (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)
- *
- * 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 <watchdog.h>
-#include <serial.h>
-#include <asm/arch/pxa-regs.h>
-
-DECLARE_GLOBAL_DATA_PTR;
-
-#define FFUART_INDEX 0
-#define BTUART_INDEX 1
-#define STUART_INDEX 2
-
-#ifndef CONFIG_SERIAL_MULTI
-#if defined (CONFIG_FFUART)
-#define UART_INDEX FFUART_INDEX
-#elif defined (CONFIG_BTUART)
-#define UART_INDEX BTUART_INDEX
-#elif defined (CONFIG_STUART)
-#define UART_INDEX STUART_INDEX
-#else
-#error "Bad: you didn't configure serial ..."
-#endif
-#endif
-
-void pxa_setbrg_dev (unsigned int uart_index)
-{
- unsigned int quot = 0;
-
- if (gd->baudrate == 1200)
- quot = 768;
- else if (gd->baudrate == 9600)
- quot = 96;
- else if (gd->baudrate == 19200)
- quot = 48;
- else if (gd->baudrate == 38400)
- quot = 24;
- else if (gd->baudrate == 57600)
- quot = 16;
- else if (gd->baudrate == 115200)
- quot = 8;
- else
- hang ();
-
- switch (uart_index) {
- case FFUART_INDEX:
-#ifdef CONFIG_CPU_MONAHANS
- CKENA |= CKENA_22_FFUART;
-#else
- CKEN |= CKEN6_FFUART;
-#endif /* CONFIG_CPU_MONAHANS */
-
- FFIER = 0; /* Disable for now */
- FFFCR = 0; /* No fifos enabled */
-
- /* set baud rate */
- FFLCR = LCR_WLS0 | LCR_WLS1 | LCR_DLAB;
- FFDLL = quot & 0xff;
- FFDLH = quot >> 8;
- FFLCR = LCR_WLS0 | LCR_WLS1;
-
- FFIER = IER_UUE; /* Enable FFUART */
- break;
-
- case BTUART_INDEX:
-#ifdef CONFIG_CPU_MONAHANS
- CKENA |= CKENA_21_BTUART;
-#else
- CKEN |= CKEN7_BTUART;
-#endif /* CONFIG_CPU_MONAHANS */
-
- BTIER = 0;
- BTFCR = 0;
-
- /* set baud rate */
- BTLCR = LCR_DLAB;
- BTDLL = quot & 0xff;
- BTDLH = quot >> 8;
- BTLCR = LCR_WLS0 | LCR_WLS1;
-
- BTIER = IER_UUE; /* Enable BFUART */
-
- break;
-
- case STUART_INDEX:
-#ifdef CONFIG_CPU_MONAHANS
- CKENA |= CKENA_23_STUART;
-#else
- CKEN |= CKEN5_STUART;
-#endif /* CONFIG_CPU_MONAHANS */
-
- STIER = 0;
- STFCR = 0;
-
- /* set baud rate */
- STLCR = LCR_DLAB;
- STDLL = quot & 0xff;
- STDLH = quot >> 8;
- STLCR = LCR_WLS0 | LCR_WLS1;
-
- STIER = IER_UUE; /* Enable STUART */
- break;
-
- default:
- hang();
- }
-}
-
-
-/*
- * Initialise the serial port with the given baudrate. The settings
- * are always 8 data bits, no parity, 1 stop bit, no start bits.
- *
- */
-int pxa_init_dev (unsigned int uart_index)
-{
- pxa_setbrg_dev (uart_index);
-
- return (0);
-}
-
-
-/*
- * Output a single byte to the serial port.
- */
-void pxa_putc_dev (unsigned int uart_index,const char c)
-{
- switch (uart_index) {
- case FFUART_INDEX:
- /* wait for room in the tx FIFO on FFUART */
- while ((FFLSR & LSR_TEMT) == 0)
- WATCHDOG_RESET (); /* Reset HW Watchdog, if needed */
- FFTHR = c;
- break;
-
- case BTUART_INDEX:
- while ((BTLSR & LSR_TEMT ) == 0 )
- WATCHDOG_RESET (); /* Reset HW Watchdog, if needed */
- BTTHR = c;
- break;
-
- case STUART_INDEX:
- while ((STLSR & LSR_TEMT ) == 0 )
- WATCHDOG_RESET (); /* Reset HW Watchdog, if needed */
- STTHR = c;
- break;
- }
-
- /* If \n, also do \r */
- if (c == '\n')
- pxa_putc_dev (uart_index,'\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.
- */
-int pxa_tstc_dev (unsigned int uart_index)
-{
- switch (uart_index) {
- case FFUART_INDEX:
- return FFLSR & LSR_DR;
- case BTUART_INDEX:
- return BTLSR & LSR_DR;
- case STUART_INDEX:
- return STLSR & LSR_DR;
- }
- return -1;
-}
-
-/*
- * 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 pxa_getc_dev (unsigned int uart_index)
-{
- switch (uart_index) {
- case FFUART_INDEX:
- while (!(FFLSR & LSR_DR))
- WATCHDOG_RESET (); /* Reset HW Watchdog, if needed */
- return (char) FFRBR & 0xff;
-
- case BTUART_INDEX:
- while (!(BTLSR & LSR_DR))
- WATCHDOG_RESET (); /* Reset HW Watchdog, if needed */
- return (char) BTRBR & 0xff;
- case STUART_INDEX:
- while (!(STLSR & LSR_DR))
- WATCHDOG_RESET (); /* Reset HW Watchdog, if needed */
- return (char) STRBR & 0xff;
- }
- return -1;
-}
-
-void
-pxa_puts_dev (unsigned int uart_index,const char *s)
-{
- while (*s) {
- pxa_putc_dev (uart_index,*s++);
- }
-}
-
-#if defined (CONFIG_FFUART)
-static int ffuart_init(void)
-{
- return pxa_init_dev(FFUART_INDEX);
-}
-
-static void ffuart_setbrg(void)
-{
- return pxa_setbrg_dev(FFUART_INDEX);
-}
-
-static void ffuart_putc(const char c)
-{
- return pxa_putc_dev(FFUART_INDEX,c);
-}
-
-static void ffuart_puts(const char *s)
-{
- return pxa_puts_dev(FFUART_INDEX,s);
-}
-
-static int ffuart_getc(void)
-{
- return pxa_getc_dev(FFUART_INDEX);
-}
-
-static int ffuart_tstc(void)
-{
- return pxa_tstc_dev(FFUART_INDEX);
-}
-
-struct serial_device serial_ffuart_device =
-{
- "serial_ffuart",
- "PXA",
- ffuart_init,
- ffuart_setbrg,
- ffuart_getc,
- ffuart_tstc,
- ffuart_putc,
- ffuart_puts,
-};
-#endif
-
-#if defined (CONFIG_BTUART)
-static int btuart_init(void)
-{
- return pxa_init_dev(BTUART_INDEX);
-}
-
-static void btuart_setbrg(void)
-{
- return pxa_setbrg_dev(BTUART_INDEX);
-}
-
-static void btuart_putc(const char c)
-{
- return pxa_putc_dev(BTUART_INDEX,c);
-}
-
-static void btuart_puts(const char *s)
-{
- return pxa_puts_dev(BTUART_INDEX,s);
-}
-
-static int btuart_getc(void)
-{
- return pxa_getc_dev(BTUART_INDEX);
-}
-
-static int btuart_tstc(void)
-{
- return pxa_tstc_dev(BTUART_INDEX);
-}
-
-struct serial_device serial_btuart_device =
-{
- "serial_btuart",
- "PXA",
- btuart_init,
- btuart_setbrg,
- btuart_getc,
- btuart_tstc,
- btuart_putc,
- btuart_puts,
-};
-#endif
-
-#if defined (CONFIG_STUART)
-static int stuart_init(void)
-{
- return pxa_init_dev(STUART_INDEX);
-}
-
-static void stuart_setbrg(void)
-{
- return pxa_setbrg_dev(STUART_INDEX);
-}
-
-static void stuart_putc(const char c)
-{
- return pxa_putc_dev(STUART_INDEX,c);
-}
-
-static void stuart_puts(const char *s)
-{
- return pxa_puts_dev(STUART_INDEX,s);
-}
-
-static int stuart_getc(void)
-{
- return pxa_getc_dev(STUART_INDEX);
-}
-
-static int stuart_tstc(void)
-{
- return pxa_tstc_dev(STUART_INDEX);
-}
-
-struct serial_device serial_stuart_device =
-{
- "serial_stuart",
- "PXA",
- stuart_init,
- stuart_setbrg,
- stuart_getc,
- stuart_tstc,
- stuart_putc,
- stuart_puts,
-};
-#endif
-
-
-#ifndef CONFIG_SERIAL_MULTI
-inline int serial_init(void) {
- return (pxa_init_dev(UART_INDEX));
-}
-void serial_setbrg(void) {
- pxa_setbrg_dev(UART_INDEX);
-}
-int serial_getc(void) {
- return(pxa_getc_dev(UART_INDEX));
-}
-int serial_tstc(void) {
- return(pxa_tstc_dev(UART_INDEX));
-}
-void serial_putc(const char c) {
- pxa_putc_dev(UART_INDEX,c);
-}
-void serial_puts(const char *s) {
- pxa_puts_dev(UART_INDEX,s);
-}
-#endif /* CONFIG_SERIAL_MULTI */
projects / karo-tx-uboot.git / blobdiff