mirror of
https://github.com/u-boot/u-boot.git
synced 2025-05-04 18:53:42 +00:00
lpc2292: move serial driver to drivers/serial
add CONFIG_LPC2292_SERIAL to activate the driver Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
This commit is contained in:
parent
176a600d0e
commit
6790c55704
5 changed files with 108 additions and 77 deletions
|
@ -122,81 +122,4 @@ serial_puts (const char *s)
|
||||||
serial_putc (*s++);
|
serial_putc (*s++);
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
#elif defined(CONFIG_LPC2292)
|
|
||||||
|
|
||||||
DECLARE_GLOBAL_DATA_PTR;
|
|
||||||
|
|
||||||
#include <asm/arch/hardware.h>
|
|
||||||
|
|
||||||
void serial_setbrg (void)
|
|
||||||
{
|
|
||||||
unsigned short divisor = 0;
|
|
||||||
|
|
||||||
switch (gd->baudrate) {
|
|
||||||
case 1200: divisor = 3072; break;
|
|
||||||
case 9600: divisor = 384; break;
|
|
||||||
case 19200: divisor = 192; break;
|
|
||||||
case 38400: divisor = 96; break;
|
|
||||||
case 57600: divisor = 64; break;
|
|
||||||
case 115200: divisor = 32; break;
|
|
||||||
default: hang (); break;
|
|
||||||
}
|
|
||||||
|
|
||||||
/* init serial UART0 */
|
|
||||||
PUT8(U0LCR, 0);
|
|
||||||
PUT8(U0IER, 0);
|
|
||||||
PUT8(U0LCR, 0x80); /* DLAB=1 */
|
|
||||||
PUT8(U0DLL, (unsigned char)(divisor & 0x00FF));
|
|
||||||
PUT8(U0DLM, (unsigned char)(divisor >> 8));
|
|
||||||
PUT8(U0LCR, 0x03); /* 8N1, DLAB=0 */
|
|
||||||
PUT8(U0FCR, 1); /* Enable RX and TX FIFOs */
|
|
||||||
}
|
|
||||||
|
|
||||||
int serial_init (void)
|
|
||||||
{
|
|
||||||
unsigned long pinsel0;
|
|
||||||
|
|
||||||
serial_setbrg ();
|
|
||||||
|
|
||||||
pinsel0 = GET32(PINSEL0);
|
|
||||||
pinsel0 &= ~(0x00000003);
|
|
||||||
pinsel0 |= 5;
|
|
||||||
PUT32(PINSEL0, pinsel0);
|
|
||||||
|
|
||||||
return (0);
|
|
||||||
}
|
|
||||||
|
|
||||||
void serial_putc (const char c)
|
|
||||||
{
|
|
||||||
if (c == '\n')
|
|
||||||
{
|
|
||||||
while((GET8(U0LSR) & (1<<5)) == 0); /* Wait for empty U0THR */
|
|
||||||
PUT8(U0THR, '\r');
|
|
||||||
}
|
|
||||||
|
|
||||||
while((GET8(U0LSR) & (1<<5)) == 0); /* Wait for empty U0THR */
|
|
||||||
PUT8(U0THR, c);
|
|
||||||
}
|
|
||||||
|
|
||||||
int serial_getc (void)
|
|
||||||
{
|
|
||||||
while((GET8(U0LSR) & 1) == 0);
|
|
||||||
return GET8(U0RBR);
|
|
||||||
}
|
|
||||||
|
|
||||||
void
|
|
||||||
serial_puts (const char *s)
|
|
||||||
{
|
|
||||||
while (*s) {
|
|
||||||
serial_putc (*s++);
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
/* Test if there is a byte to read */
|
|
||||||
int serial_tstc (void)
|
|
||||||
{
|
|
||||||
return (GET8(U0LSR) & 1);
|
|
||||||
}
|
|
||||||
|
|
||||||
#endif
|
#endif
|
||||||
|
|
|
@ -35,6 +35,7 @@ COBJS-$(CONFIG_S3C64XX) += s3c64xx.o
|
||||||
COBJS-$(CONFIG_SYS_NS16550_SERIAL) += serial.o
|
COBJS-$(CONFIG_SYS_NS16550_SERIAL) += serial.o
|
||||||
COBJS-$(CONFIG_IXP_SERIAL) += serial_ixp.o
|
COBJS-$(CONFIG_IXP_SERIAL) += serial_ixp.o
|
||||||
COBJS-$(CONFIG_KS8695_SERIAL) += serial_ks8695.o
|
COBJS-$(CONFIG_KS8695_SERIAL) += serial_ks8695.o
|
||||||
|
COBJS-$(CONFIG_LPC2292_SERIAL) += serial_lpc2292.o
|
||||||
COBJS-$(CONFIG_MAX3100_SERIAL) += serial_max3100.o
|
COBJS-$(CONFIG_MAX3100_SERIAL) += serial_max3100.o
|
||||||
COBJS-$(CONFIG_MX31_UART) += serial_mx31.o
|
COBJS-$(CONFIG_MX31_UART) += serial_mx31.o
|
||||||
COBJS-$(CONFIG_NETARM_SERIAL) += serial_netarm.o
|
COBJS-$(CONFIG_NETARM_SERIAL) += serial_netarm.o
|
||||||
|
|
105
drivers/serial/serial_lpc2292.c
Normal file
105
drivers/serial/serial_lpc2292.c
Normal file
|
@ -0,0 +1,105 @@
|
||||||
|
/*
|
||||||
|
* (C) Copyright 2002-2004
|
||||||
|
* 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 <asm/arch/hardware.h>
|
||||||
|
|
||||||
|
DECLARE_GLOBAL_DATA_PTR;
|
||||||
|
|
||||||
|
void serial_setbrg (void)
|
||||||
|
{
|
||||||
|
unsigned short divisor = 0;
|
||||||
|
|
||||||
|
switch (gd->baudrate) {
|
||||||
|
case 1200: divisor = 3072; break;
|
||||||
|
case 9600: divisor = 384; break;
|
||||||
|
case 19200: divisor = 192; break;
|
||||||
|
case 38400: divisor = 96; break;
|
||||||
|
case 57600: divisor = 64; break;
|
||||||
|
case 115200: divisor = 32; break;
|
||||||
|
default: hang (); break;
|
||||||
|
}
|
||||||
|
|
||||||
|
/* init serial UART0 */
|
||||||
|
PUT8(U0LCR, 0);
|
||||||
|
PUT8(U0IER, 0);
|
||||||
|
PUT8(U0LCR, 0x80); /* DLAB=1 */
|
||||||
|
PUT8(U0DLL, (unsigned char)(divisor & 0x00FF));
|
||||||
|
PUT8(U0DLM, (unsigned char)(divisor >> 8));
|
||||||
|
PUT8(U0LCR, 0x03); /* 8N1, DLAB=0 */
|
||||||
|
PUT8(U0FCR, 1); /* Enable RX and TX FIFOs */
|
||||||
|
}
|
||||||
|
|
||||||
|
int serial_init (void)
|
||||||
|
{
|
||||||
|
unsigned long pinsel0;
|
||||||
|
|
||||||
|
serial_setbrg ();
|
||||||
|
|
||||||
|
pinsel0 = GET32(PINSEL0);
|
||||||
|
pinsel0 &= ~(0x00000003);
|
||||||
|
pinsel0 |= 5;
|
||||||
|
PUT32(PINSEL0, pinsel0);
|
||||||
|
|
||||||
|
return (0);
|
||||||
|
}
|
||||||
|
|
||||||
|
void serial_putc (const char c)
|
||||||
|
{
|
||||||
|
if (c == '\n')
|
||||||
|
{
|
||||||
|
while((GET8(U0LSR) & (1<<5)) == 0); /* Wait for empty U0THR */
|
||||||
|
PUT8(U0THR, '\r');
|
||||||
|
}
|
||||||
|
|
||||||
|
while((GET8(U0LSR) & (1<<5)) == 0); /* Wait for empty U0THR */
|
||||||
|
PUT8(U0THR, c);
|
||||||
|
}
|
||||||
|
|
||||||
|
int serial_getc (void)
|
||||||
|
{
|
||||||
|
while((GET8(U0LSR) & 1) == 0);
|
||||||
|
return GET8(U0RBR);
|
||||||
|
}
|
||||||
|
|
||||||
|
void
|
||||||
|
serial_puts (const char *s)
|
||||||
|
{
|
||||||
|
while (*s) {
|
||||||
|
serial_putc (*s++);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
/* Test if there is a byte to read */
|
||||||
|
int serial_tstc (void)
|
||||||
|
{
|
||||||
|
return (GET8(U0LSR) & 1);
|
||||||
|
}
|
||||||
|
|
|
@ -59,6 +59,7 @@
|
||||||
/*
|
/*
|
||||||
* select serial console configuration
|
* select serial console configuration
|
||||||
*/
|
*/
|
||||||
|
#define CONFIG_LPC2292_SERIAL
|
||||||
#define CONFIG_SERIAL1 1 /* we use Serial line 1 */
|
#define CONFIG_SERIAL1 1 /* we use Serial line 1 */
|
||||||
|
|
||||||
/* allow to overwrite serial and ethaddr */
|
/* allow to overwrite serial and ethaddr */
|
||||||
|
|
|
@ -59,6 +59,7 @@
|
||||||
/*
|
/*
|
||||||
* select serial console configuration
|
* select serial console configuration
|
||||||
*/
|
*/
|
||||||
|
#define CONFIG_LPC2292_SERIAL
|
||||||
#define CONFIG_SERIAL1 1 /* we use Serial line 1 */
|
#define CONFIG_SERIAL1 1 /* we use Serial line 1 */
|
||||||
|
|
||||||
/* allow to overwrite serial and ethaddr */
|
/* allow to overwrite serial and ethaddr */
|
||||||
|
|
Loading…
Add table
Reference in a new issue