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pxa: move serial driver to drivers/serial

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Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
This commit is contained in:
Jean-Christophe PLAGNIOL-VILLARD
2009-05-16 22:48:46 +02:00
committed by Wolfgang Denk
parent ad7e8aac69
commit 379be585eb
18 changed files with 16 additions and 1 deletions
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1
cpu/pxa/Makefile
View File

@@ -30,7 +30,6 @@ START = start.o
COBJS += cpu.o
COBJS += i2c.o
COBJS += pxafb.o
COBJS += serial.o
COBJS += timer.o
COBJS += usb.o

385
cpu/pxa/serial.c
View File

@@ -1,385 +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)
*
* 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 */