upstream u-boot with additional patches for our devices/boards:
https://lists.denx.de/pipermail/u-boot/2017-March/282789.html (AXP crashes) ;
Gbit ethernet patch for some LIME2 revisions ;
with SPI flash support
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
77 lines
2.0 KiB
77 lines
2.0 KiB
21 years ago
|
/*
|
||
|
|
* (C) Copyright 2004 Atmark Techno, Inc.
|
||
|
|
*
|
||
|
|
* Yasushi SHOJI <yashi@atmark-techno.com>
|
||
|
|
*
|
||
|
|
* See file CREDITS for list of people who contributed to this
|
||
|
|
* project.
|
||
|
|
*
|
||
|
|
* 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 <config.h>
|
||
|
21 years ago
|
|
||
17 years ago
|
#ifdef CONFIG_XILINX_UARTLITE
|
||
|
21 years ago
|
|
||
|
21 years ago
|
#include <asm/serial_xuartlite.h>
|
||
|
|
|
||
|
|
/* FIXME: we should convert these to in32 and out32 */
|
||
|
|
#define IO_WORD(offset) (*(volatile unsigned long *)(offset))
|
||
|
|
#define IO_SERIAL(offset) IO_WORD(CONFIG_SERIAL_BASE + (offset))
|
||
|
|
|
||
|
|
#define IO_SERIAL_RX_FIFO IO_SERIAL(XUL_RX_FIFO_OFFSET)
|
||
|
|
#define IO_SERIAL_TX_FIFO IO_SERIAL(XUL_TX_FIFO_OFFSET)
|
||
|
|
#define IO_SERIAL_STATUS IO_SERIAL(XUL_STATUS_REG_OFFSET)
|
||
|
|
#define IO_SERIAL_CONTROL IO_SERIAL(XUL_CONTROL_REG_OFFSET)
|
||
|
|
|
||
|
|
int serial_init(void)
|
||
|
|
{
|
||
|
|
/* FIXME: Nothing for now. We should initialize fifo, etc */
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
void serial_setbrg(void)
|
||
|
|
{
|
||
|
|
/* FIXME: what's this for? */
|
||
|
|
}
|
||
|
|
|
||
|
|
void serial_putc(const char c)
|
||
|
|
{
|
||
|
|
if (c == '\n') serial_putc('\r');
|
||
|
|
while (IO_SERIAL_STATUS & XUL_SR_TX_FIFO_FULL);
|
||
|
|
IO_SERIAL_TX_FIFO = (unsigned char) (c & 0xff);
|
||
|
|
}
|
||
|
|
|
||
|
|
void serial_puts(const char * s)
|
||
|
|
{
|
||
|
|
while (*s) {
|
||
|
|
serial_putc(*s++);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
int serial_getc(void)
|
||
|
|
{
|
||
|
|
while (!(IO_SERIAL_STATUS & XUL_SR_RX_FIFO_VALID_DATA));
|
||
|
|
return IO_SERIAL_RX_FIFO & 0xff;
|
||
|
|
}
|
||
|
|
|
||
|
|
int serial_tstc(void)
|
||
|
|
{
|
||
|
|
return (IO_SERIAL_STATUS & XUL_SR_RX_FIFO_VALID_DATA);
|
||
|
|
}
|
||
|
21 years ago
|
|
||
|
|
#endif /* CONFIG_MICROBLZE */
|