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.
331 lines
7.4 KiB
331 lines
7.4 KiB
/*
|
|
* (C) Copyright 2000
|
|
* Rob Taylor, Flying Pig Systems. robt@flyingpig.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 <common.h>
|
|
|
|
#include <ns16550.h>
|
|
#ifdef CONFIG_NS87308
|
|
#include <ns87308.h>
|
|
#endif
|
|
#ifdef CONFIG_KIRKWOOD
|
|
#include <asm/arch/kirkwood.h>
|
|
#endif
|
|
|
|
#if defined (CONFIG_SERIAL_MULTI)
|
|
#include <serial.h>
|
|
#endif
|
|
|
|
DECLARE_GLOBAL_DATA_PTR;
|
|
|
|
#if !defined(CONFIG_CONS_INDEX)
|
|
#if defined (CONFIG_SERIAL_MULTI)
|
|
/* with CONFIG_SERIAL_MULTI we might have no console
|
|
* on these devices
|
|
*/
|
|
#else
|
|
#error "No console index specified."
|
|
#endif /* CONFIG_SERIAL_MULTI */
|
|
#elif (CONFIG_CONS_INDEX < 1) || (CONFIG_CONS_INDEX > 4)
|
|
#error "Invalid console index value."
|
|
#endif
|
|
|
|
#if CONFIG_CONS_INDEX == 1 && !defined(CONFIG_SYS_NS16550_COM1)
|
|
#error "Console port 1 defined but not configured."
|
|
#elif CONFIG_CONS_INDEX == 2 && !defined(CONFIG_SYS_NS16550_COM2)
|
|
#error "Console port 2 defined but not configured."
|
|
#elif CONFIG_CONS_INDEX == 3 && !defined(CONFIG_SYS_NS16550_COM3)
|
|
#error "Console port 3 defined but not configured."
|
|
#elif CONFIG_CONS_INDEX == 4 && !defined(CONFIG_SYS_NS16550_COM4)
|
|
#error "Console port 4 defined but not configured."
|
|
#endif
|
|
|
|
/* Note: The port number specified in the functions is 1 based.
|
|
* the array is 0 based.
|
|
*/
|
|
static NS16550_t serial_ports[4] = {
|
|
#ifdef CONFIG_SYS_NS16550_COM1
|
|
(NS16550_t)CONFIG_SYS_NS16550_COM1,
|
|
#else
|
|
NULL,
|
|
#endif
|
|
#ifdef CONFIG_SYS_NS16550_COM2
|
|
(NS16550_t)CONFIG_SYS_NS16550_COM2,
|
|
#else
|
|
NULL,
|
|
#endif
|
|
#ifdef CONFIG_SYS_NS16550_COM3
|
|
(NS16550_t)CONFIG_SYS_NS16550_COM3,
|
|
#else
|
|
NULL,
|
|
#endif
|
|
#ifdef CONFIG_SYS_NS16550_COM4
|
|
(NS16550_t)CONFIG_SYS_NS16550_COM4
|
|
#else
|
|
NULL
|
|
#endif
|
|
};
|
|
|
|
#define PORT serial_ports[port-1]
|
|
#if defined(CONFIG_CONS_INDEX)
|
|
#define CONSOLE (serial_ports[CONFIG_CONS_INDEX-1])
|
|
#endif
|
|
|
|
#if defined(CONFIG_SERIAL_MULTI)
|
|
|
|
/* Multi serial device functions */
|
|
#define DECLARE_ESERIAL_FUNCTIONS(port) \
|
|
int eserial##port##_init (void) {\
|
|
int clock_divisor; \
|
|
clock_divisor = calc_divisor(serial_ports[port-1]); \
|
|
NS16550_init(serial_ports[port-1], clock_divisor); \
|
|
return(0);}\
|
|
void eserial##port##_setbrg (void) {\
|
|
serial_setbrg_dev(port);}\
|
|
int eserial##port##_getc (void) {\
|
|
return serial_getc_dev(port);}\
|
|
int eserial##port##_tstc (void) {\
|
|
return serial_tstc_dev(port);}\
|
|
void eserial##port##_putc (const char c) {\
|
|
serial_putc_dev(port, c);}\
|
|
void eserial##port##_puts (const char *s) {\
|
|
serial_puts_dev(port, s);}
|
|
|
|
/* Serial device descriptor */
|
|
#define INIT_ESERIAL_STRUCTURE(port,name,bus) {\
|
|
name,\
|
|
bus,\
|
|
eserial##port##_init,\
|
|
eserial##port##_setbrg,\
|
|
eserial##port##_getc,\
|
|
eserial##port##_tstc,\
|
|
eserial##port##_putc,\
|
|
eserial##port##_puts, }
|
|
|
|
#endif /* CONFIG_SERIAL_MULTI */
|
|
|
|
static int calc_divisor (NS16550_t port)
|
|
{
|
|
#ifdef CONFIG_OMAP1510
|
|
/* If can't cleanly clock 115200 set div to 1 */
|
|
if ((CONFIG_SYS_NS16550_CLK == 12000000) && (gd->baudrate == 115200)) {
|
|
port->osc_12m_sel = OSC_12M_SEL; /* enable 6.5 * divisor */
|
|
return (1); /* return 1 for base divisor */
|
|
}
|
|
port->osc_12m_sel = 0; /* clear if previsouly set */
|
|
#endif
|
|
#ifdef CONFIG_OMAP1610
|
|
/* If can't cleanly clock 115200 set div to 1 */
|
|
if ((CONFIG_SYS_NS16550_CLK == 48000000) && (gd->baudrate == 115200)) {
|
|
return (26); /* return 26 for base divisor */
|
|
}
|
|
#endif
|
|
|
|
#ifdef CONFIG_APTIX
|
|
#define MODE_X_DIV 13
|
|
#else
|
|
#define MODE_X_DIV 16
|
|
#endif
|
|
|
|
/* Compute divisor value. Normally, we should simply return:
|
|
* CONFIG_SYS_NS16550_CLK) / MODE_X_DIV / gd->baudrate
|
|
* but we need to round that value by adding 0.5.
|
|
* Rounding is especially important at high baud rates.
|
|
*/
|
|
return (CONFIG_SYS_NS16550_CLK + (gd->baudrate * (MODE_X_DIV / 2))) /
|
|
(MODE_X_DIV * gd->baudrate);
|
|
}
|
|
|
|
#if !defined(CONFIG_SERIAL_MULTI)
|
|
int serial_init (void)
|
|
{
|
|
int clock_divisor;
|
|
|
|
#ifdef CONFIG_NS87308
|
|
initialise_ns87308();
|
|
#endif
|
|
|
|
#ifdef CONFIG_SYS_NS16550_COM1
|
|
clock_divisor = calc_divisor(serial_ports[0]);
|
|
NS16550_init(serial_ports[0], clock_divisor);
|
|
#endif
|
|
#ifdef CONFIG_SYS_NS16550_COM2
|
|
clock_divisor = calc_divisor(serial_ports[1]);
|
|
NS16550_init(serial_ports[1], clock_divisor);
|
|
#endif
|
|
#ifdef CONFIG_SYS_NS16550_COM3
|
|
clock_divisor = calc_divisor(serial_ports[2]);
|
|
NS16550_init(serial_ports[2], clock_divisor);
|
|
#endif
|
|
#ifdef CONFIG_SYS_NS16550_COM4
|
|
clock_divisor = calc_divisor(serial_ports[3]);
|
|
NS16550_init(serial_ports[3], clock_divisor);
|
|
#endif
|
|
|
|
return (0);
|
|
}
|
|
#endif
|
|
|
|
void
|
|
_serial_putc(const char c,const int port)
|
|
{
|
|
if (c == '\n')
|
|
NS16550_putc(PORT, '\r');
|
|
|
|
NS16550_putc(PORT, c);
|
|
}
|
|
|
|
void
|
|
_serial_putc_raw(const char c,const int port)
|
|
{
|
|
NS16550_putc(PORT, c);
|
|
}
|
|
|
|
void
|
|
_serial_puts (const char *s,const int port)
|
|
{
|
|
while (*s) {
|
|
_serial_putc (*s++,port);
|
|
}
|
|
}
|
|
|
|
|
|
int
|
|
_serial_getc(const int port)
|
|
{
|
|
return NS16550_getc(PORT);
|
|
}
|
|
|
|
int
|
|
_serial_tstc(const int port)
|
|
{
|
|
return NS16550_tstc(PORT);
|
|
}
|
|
|
|
void
|
|
_serial_setbrg (const int port)
|
|
{
|
|
int clock_divisor;
|
|
|
|
clock_divisor = calc_divisor(PORT);
|
|
NS16550_reinit(PORT, clock_divisor);
|
|
}
|
|
|
|
#if defined(CONFIG_SERIAL_MULTI)
|
|
static inline void
|
|
serial_putc_dev(unsigned int dev_index,const char c)
|
|
{
|
|
_serial_putc(c,dev_index);
|
|
}
|
|
#else
|
|
void
|
|
serial_putc(const char c)
|
|
{
|
|
_serial_putc(c,CONFIG_CONS_INDEX);
|
|
}
|
|
#endif
|
|
|
|
#if defined(CONFIG_SERIAL_MULTI)
|
|
static inline void
|
|
serial_putc_raw_dev(unsigned int dev_index,const char c)
|
|
{
|
|
_serial_putc_raw(c,dev_index);
|
|
}
|
|
#else
|
|
void
|
|
serial_putc_raw(const char c)
|
|
{
|
|
_serial_putc_raw(c,CONFIG_CONS_INDEX);
|
|
}
|
|
#endif
|
|
|
|
#if defined(CONFIG_SERIAL_MULTI)
|
|
static inline void
|
|
serial_puts_dev(unsigned int dev_index,const char *s)
|
|
{
|
|
_serial_puts(s,dev_index);
|
|
}
|
|
#else
|
|
void
|
|
serial_puts(const char *s)
|
|
{
|
|
_serial_puts(s,CONFIG_CONS_INDEX);
|
|
}
|
|
#endif
|
|
|
|
#if defined(CONFIG_SERIAL_MULTI)
|
|
static inline int
|
|
serial_getc_dev(unsigned int dev_index)
|
|
{
|
|
return _serial_getc(dev_index);
|
|
}
|
|
#else
|
|
int
|
|
serial_getc(void)
|
|
{
|
|
return _serial_getc(CONFIG_CONS_INDEX);
|
|
}
|
|
#endif
|
|
|
|
#if defined(CONFIG_SERIAL_MULTI)
|
|
static inline int
|
|
serial_tstc_dev(unsigned int dev_index)
|
|
{
|
|
return _serial_tstc(dev_index);
|
|
}
|
|
#else
|
|
int
|
|
serial_tstc(void)
|
|
{
|
|
return _serial_tstc(CONFIG_CONS_INDEX);
|
|
}
|
|
#endif
|
|
|
|
#if defined(CONFIG_SERIAL_MULTI)
|
|
static inline void
|
|
serial_setbrg_dev(unsigned int dev_index)
|
|
{
|
|
_serial_setbrg(dev_index);
|
|
}
|
|
#else
|
|
void
|
|
serial_setbrg(void)
|
|
{
|
|
_serial_setbrg(CONFIG_CONS_INDEX);
|
|
}
|
|
#endif
|
|
|
|
#if defined(CONFIG_SERIAL_MULTI)
|
|
|
|
DECLARE_ESERIAL_FUNCTIONS(1);
|
|
struct serial_device eserial1_device =
|
|
INIT_ESERIAL_STRUCTURE(1,"eserial0","EUART1");
|
|
DECLARE_ESERIAL_FUNCTIONS(2);
|
|
struct serial_device eserial2_device =
|
|
INIT_ESERIAL_STRUCTURE(2,"eserial1","EUART2");
|
|
DECLARE_ESERIAL_FUNCTIONS(3);
|
|
struct serial_device eserial3_device =
|
|
INIT_ESERIAL_STRUCTURE(3,"eserial2","EUART3");
|
|
DECLARE_ESERIAL_FUNCTIONS(4);
|
|
struct serial_device eserial4_device =
|
|
INIT_ESERIAL_STRUCTURE(4,"eserial3","EUART4");
|
|
#endif /* CONFIG_SERIAL_MULTI */
|
|
|