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039594a430
Defining the next two configs allows to switch the serial port from the console using the setenv stdin and stdout 1. #define CONFIG_SERIAL_MULTI 1 /* Enable both serial ports */ 2. #define CONFIG_SYS_CONSOLE_IS_IN_ENV /* determine from environment */ Signed-off-by: Poonam Aggrwal <poonam.aggrwal@freescale.com> Signed-off-by: Ed Swarthout <Ed.Swarthout@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
258 lines
6.2 KiB
C
258 lines
6.2 KiB
C
/*
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* (C) Copyright 2004
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* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (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,
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* MA 02111-1307 USA
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*/
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#include <common.h>
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#include <serial.h>
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#include <devices.h>
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DECLARE_GLOBAL_DATA_PTR;
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static struct serial_device *serial_devices = NULL;
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static struct serial_device *serial_current = NULL;
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#if !defined(CONFIG_LWMON) && !defined(CONFIG_PXA27X)
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struct serial_device *__default_serial_console (void)
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{
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#if defined(CONFIG_8xx_CONS_SMC1) || defined(CONFIG_8xx_CONS_SMC2)
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return &serial_smc_device;
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#elif defined(CONFIG_8xx_CONS_SCC1) || defined(CONFIG_8xx_CONS_SCC2) \
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|| defined(CONFIG_8xx_CONS_SCC3) || defined(CONFIG_8xx_CONS_SCC4)
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return &serial_scc_device;
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#elif defined(CONFIG_405GP) || defined(CONFIG_405CR) || defined(CONFIG_440) \
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|| defined(CONFIG_405EP) || defined(CONFIG_405EZ) || defined(CONFIG_405EX) \
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|| defined(CONFIG_MPC5xxx) || defined(CONFIG_MPC83xx) \
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|| defined(CONFIG_MPC85xx) || defined(CONFIG_MPC86xx)
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#if defined(CONFIG_CONS_INDEX) && defined(CONFIG_SYS_NS16550_SERIAL)
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#if (CONFIG_CONS_INDEX==1)
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return &eserial1_device;
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#elif (CONFIG_CONS_INDEX==2)
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return &eserial2_device;
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#elif (CONFIG_CONS_INDEX==3)
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return &eserial3_device;
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#elif (CONFIG_CONS_INDEX==4)
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return &eserial4_device;
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#else
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#error "Bad CONFIG_CONS_INDEX."
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#endif
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#elif defined(CONFIG_UART1_CONSOLE)
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return &serial1_device;
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#else
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return &serial0_device;
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#endif
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#elif defined(CONFIG_S3C2410)
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#if defined(CONFIG_SERIAL1)
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return &s3c24xx_serial0_device;
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#elif defined(CONFIG_SERIAL2)
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return &s3c24xx_serial1_device;
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#elif defined(CONFIG_SERIAL3)
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return &s3c24xx_serial2_device;
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#else
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#error "CONFIG_SERIAL? missing."
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#endif
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#elif defined(CONFIG_OMAP3_ZOOM2)
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return ZOOM2_DEFAULT_SERIAL_DEVICE;
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#else
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#error No default console
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#endif
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}
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struct serial_device *default_serial_console(void) __attribute__((weak, alias("__default_serial_console")));
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#endif
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int serial_register (struct serial_device *dev)
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{
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dev->init += gd->reloc_off;
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dev->setbrg += gd->reloc_off;
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dev->getc += gd->reloc_off;
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dev->tstc += gd->reloc_off;
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dev->putc += gd->reloc_off;
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dev->puts += gd->reloc_off;
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dev->next = serial_devices;
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serial_devices = dev;
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return 0;
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}
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void serial_initialize (void)
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{
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#if defined(CONFIG_8xx_CONS_SMC1) || defined(CONFIG_8xx_CONS_SMC2)
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serial_register (&serial_smc_device);
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#endif
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#if defined(CONFIG_8xx_CONS_SCC1) || defined(CONFIG_8xx_CONS_SCC2) \
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|| defined(CONFIG_8xx_CONS_SCC3) || defined(CONFIG_8xx_CONS_SCC4)
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serial_register (&serial_scc_device);
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#endif
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#if defined(CONFIG_405GP) || defined(CONFIG_405CR) || defined(CONFIG_440) \
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|| defined(CONFIG_405EP) || defined(CONFIG_405EZ) || defined(CONFIG_405EX) \
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|| defined(CONFIG_MPC5xxx)
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serial_register(&serial0_device);
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serial_register(&serial1_device);
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#endif
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#if defined(CONFIG_SYS_NS16550_SERIAL)
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#if defined(CONFIG_SYS_NS16550_COM1)
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serial_register(&eserial1_device);
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#endif
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#if defined(CONFIG_SYS_NS16550_COM2)
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serial_register(&eserial2_device);
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#endif
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#if defined(CONFIG_SYS_NS16550_COM3)
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serial_register(&eserial3_device);
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#endif
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#if defined(CONFIG_SYS_NS16550_COM4)
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serial_register(&eserial4_device);
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#endif
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#endif /* CONFIG_SYS_NS16550_SERIAL */
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#if defined (CONFIG_FFUART)
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serial_register(&serial_ffuart_device);
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#endif
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#if defined (CONFIG_BTUART)
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serial_register(&serial_btuart_device);
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#endif
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#if defined (CONFIG_STUART)
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serial_register(&serial_stuart_device);
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#endif
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#if defined(CONFIG_S3C2410)
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serial_register(&s3c24xx_serial0_device);
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serial_register(&s3c24xx_serial1_device);
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serial_register(&s3c24xx_serial2_device);
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#endif
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serial_assign (default_serial_console ()->name);
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}
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void serial_devices_init (void)
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{
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device_t dev;
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struct serial_device *s = serial_devices;
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while (s) {
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memset (&dev, 0, sizeof (dev));
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strcpy (dev.name, s->name);
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dev.flags = DEV_FLAGS_OUTPUT | DEV_FLAGS_INPUT;
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dev.start = s->init;
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dev.putc = s->putc;
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dev.puts = s->puts;
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dev.getc = s->getc;
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dev.tstc = s->tstc;
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device_register (&dev);
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s = s->next;
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}
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}
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int serial_assign (char *name)
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{
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struct serial_device *s;
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for (s = serial_devices; s; s = s->next) {
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if (strcmp (s->name, name) == 0) {
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serial_current = s;
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return 0;
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}
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}
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return 1;
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}
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void serial_reinit_all (void)
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{
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struct serial_device *s;
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for (s = serial_devices; s; s = s->next) {
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s->init ();
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}
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}
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int serial_init (void)
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{
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if (!(gd->flags & GD_FLG_RELOC) || !serial_current) {
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struct serial_device *dev = default_serial_console ();
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return dev->init ();
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}
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return serial_current->init ();
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}
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void serial_setbrg (void)
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{
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if (!(gd->flags & GD_FLG_RELOC) || !serial_current) {
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struct serial_device *dev = default_serial_console ();
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dev->setbrg ();
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return;
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}
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serial_current->setbrg ();
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}
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int serial_getc (void)
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{
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if (!(gd->flags & GD_FLG_RELOC) || !serial_current) {
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struct serial_device *dev = default_serial_console ();
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return dev->getc ();
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}
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return serial_current->getc ();
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}
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int serial_tstc (void)
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{
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if (!(gd->flags & GD_FLG_RELOC) || !serial_current) {
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struct serial_device *dev = default_serial_console ();
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return dev->tstc ();
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}
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return serial_current->tstc ();
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}
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void serial_putc (const char c)
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{
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if (!(gd->flags & GD_FLG_RELOC) || !serial_current) {
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struct serial_device *dev = default_serial_console ();
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dev->putc (c);
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return;
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}
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serial_current->putc (c);
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}
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void serial_puts (const char *s)
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{
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if (!(gd->flags & GD_FLG_RELOC) || !serial_current) {
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struct serial_device *dev = default_serial_console ();
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dev->puts (s);
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return;
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}
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serial_current->puts (s);
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}
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