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https://github.com/brain-hackers/u-boot-brain
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660888b7fb
Zoom2 serial is in general supplied by one of the 4 UARTS on the debug board. The default serial is from the USB connector on left side of the debug board. The USB connector will produce 2 of the 4 UARTS. On your host pick the first enumeration. The details of the setting of the serial gpmc setup are not available. The values were provided by another party. The serial port set up is the same with Zoom1. Baud rate 115200, 8 bit data, no parity, 1 stop bit, no flow. The kernel bootargs are console=ttyS3,115200n8 Signed-off-by: Tom Rix <Tom.Rix@windriver.com>
258 lines
6.1 KiB
C
258 lines
6.1 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)
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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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