mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-06 05:04:26 +00:00
83d290c56f
When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
257 lines
5.8 KiB
C
257 lines
5.8 KiB
C
// SPDX-License-Identifier: GPL-2.0+
|
|
/*
|
|
* (C) Copyright 2000
|
|
* Rob Taylor, Flying Pig Systems. robt@flyingpig.com.
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <linux/compiler.h>
|
|
|
|
#include <ns16550.h>
|
|
#ifdef CONFIG_NS87308
|
|
#include <ns87308.h>
|
|
#endif
|
|
|
|
#include <serial.h>
|
|
|
|
#ifndef CONFIG_NS16550_MIN_FUNCTIONS
|
|
|
|
DECLARE_GLOBAL_DATA_PTR;
|
|
|
|
#if !defined(CONFIG_CONS_INDEX)
|
|
#elif (CONFIG_CONS_INDEX < 1) || (CONFIG_CONS_INDEX > 6)
|
|
#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."
|
|
#elif CONFIG_CONS_INDEX == 5 && !defined(CONFIG_SYS_NS16550_COM5)
|
|
#error "Console port 5 defined but not configured."
|
|
#elif CONFIG_CONS_INDEX == 6 && !defined(CONFIG_SYS_NS16550_COM6)
|
|
#error "Console port 6 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[6] = {
|
|
#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
|
|
#ifdef CONFIG_SYS_NS16550_COM5
|
|
(NS16550_t)CONFIG_SYS_NS16550_COM5,
|
|
#else
|
|
NULL,
|
|
#endif
|
|
#ifdef CONFIG_SYS_NS16550_COM6
|
|
(NS16550_t)CONFIG_SYS_NS16550_COM6
|
|
#else
|
|
NULL
|
|
#endif
|
|
};
|
|
|
|
#define PORT serial_ports[port-1]
|
|
|
|
/* Multi serial device functions */
|
|
#define DECLARE_ESERIAL_FUNCTIONS(port) \
|
|
static int eserial##port##_init(void) \
|
|
{ \
|
|
int clock_divisor; \
|
|
clock_divisor = ns16550_calc_divisor(serial_ports[port-1], \
|
|
CONFIG_SYS_NS16550_CLK, gd->baudrate); \
|
|
NS16550_init(serial_ports[port-1], clock_divisor); \
|
|
return 0 ; \
|
|
} \
|
|
static void eserial##port##_setbrg(void) \
|
|
{ \
|
|
serial_setbrg_dev(port); \
|
|
} \
|
|
static int eserial##port##_getc(void) \
|
|
{ \
|
|
return serial_getc_dev(port); \
|
|
} \
|
|
static int eserial##port##_tstc(void) \
|
|
{ \
|
|
return serial_tstc_dev(port); \
|
|
} \
|
|
static void eserial##port##_putc(const char c) \
|
|
{ \
|
|
serial_putc_dev(port, c); \
|
|
} \
|
|
static void eserial##port##_puts(const char *s) \
|
|
{ \
|
|
serial_puts_dev(port, s); \
|
|
}
|
|
|
|
/* Serial device descriptor */
|
|
#define INIT_ESERIAL_STRUCTURE(port, __name) { \
|
|
.name = __name, \
|
|
.start = eserial##port##_init, \
|
|
.stop = NULL, \
|
|
.setbrg = eserial##port##_setbrg, \
|
|
.getc = eserial##port##_getc, \
|
|
.tstc = eserial##port##_tstc, \
|
|
.putc = eserial##port##_putc, \
|
|
.puts = eserial##port##_puts, \
|
|
}
|
|
|
|
static void _serial_putc(const char c, const int port)
|
|
{
|
|
if (c == '\n')
|
|
NS16550_putc(PORT, '\r');
|
|
|
|
NS16550_putc(PORT, c);
|
|
}
|
|
|
|
static void _serial_puts(const char *s, const int port)
|
|
{
|
|
while (*s) {
|
|
_serial_putc(*s++, port);
|
|
}
|
|
}
|
|
|
|
static int _serial_getc(const int port)
|
|
{
|
|
return NS16550_getc(PORT);
|
|
}
|
|
|
|
static int _serial_tstc(const int port)
|
|
{
|
|
return NS16550_tstc(PORT);
|
|
}
|
|
|
|
static void _serial_setbrg(const int port)
|
|
{
|
|
int clock_divisor;
|
|
|
|
clock_divisor = ns16550_calc_divisor(PORT, CONFIG_SYS_NS16550_CLK,
|
|
gd->baudrate);
|
|
NS16550_reinit(PORT, clock_divisor);
|
|
}
|
|
|
|
static inline void
|
|
serial_putc_dev(unsigned int dev_index,const char c)
|
|
{
|
|
_serial_putc(c,dev_index);
|
|
}
|
|
|
|
static inline void
|
|
serial_puts_dev(unsigned int dev_index,const char *s)
|
|
{
|
|
_serial_puts(s,dev_index);
|
|
}
|
|
|
|
static inline int
|
|
serial_getc_dev(unsigned int dev_index)
|
|
{
|
|
return _serial_getc(dev_index);
|
|
}
|
|
|
|
static inline int
|
|
serial_tstc_dev(unsigned int dev_index)
|
|
{
|
|
return _serial_tstc(dev_index);
|
|
}
|
|
|
|
static inline void
|
|
serial_setbrg_dev(unsigned int dev_index)
|
|
{
|
|
_serial_setbrg(dev_index);
|
|
}
|
|
|
|
#if defined(CONFIG_SYS_NS16550_COM1)
|
|
DECLARE_ESERIAL_FUNCTIONS(1);
|
|
struct serial_device eserial1_device =
|
|
INIT_ESERIAL_STRUCTURE(1, "eserial0");
|
|
#endif
|
|
#if defined(CONFIG_SYS_NS16550_COM2)
|
|
DECLARE_ESERIAL_FUNCTIONS(2);
|
|
struct serial_device eserial2_device =
|
|
INIT_ESERIAL_STRUCTURE(2, "eserial1");
|
|
#endif
|
|
#if defined(CONFIG_SYS_NS16550_COM3)
|
|
DECLARE_ESERIAL_FUNCTIONS(3);
|
|
struct serial_device eserial3_device =
|
|
INIT_ESERIAL_STRUCTURE(3, "eserial2");
|
|
#endif
|
|
#if defined(CONFIG_SYS_NS16550_COM4)
|
|
DECLARE_ESERIAL_FUNCTIONS(4);
|
|
struct serial_device eserial4_device =
|
|
INIT_ESERIAL_STRUCTURE(4, "eserial3");
|
|
#endif
|
|
#if defined(CONFIG_SYS_NS16550_COM5)
|
|
DECLARE_ESERIAL_FUNCTIONS(5);
|
|
struct serial_device eserial5_device =
|
|
INIT_ESERIAL_STRUCTURE(5, "eserial4");
|
|
#endif
|
|
#if defined(CONFIG_SYS_NS16550_COM6)
|
|
DECLARE_ESERIAL_FUNCTIONS(6);
|
|
struct serial_device eserial6_device =
|
|
INIT_ESERIAL_STRUCTURE(6, "eserial5");
|
|
#endif
|
|
|
|
__weak struct serial_device *default_serial_console(void)
|
|
{
|
|
#if CONFIG_CONS_INDEX == 1
|
|
return &eserial1_device;
|
|
#elif CONFIG_CONS_INDEX == 2
|
|
return &eserial2_device;
|
|
#elif CONFIG_CONS_INDEX == 3
|
|
return &eserial3_device;
|
|
#elif CONFIG_CONS_INDEX == 4
|
|
return &eserial4_device;
|
|
#elif CONFIG_CONS_INDEX == 5
|
|
return &eserial5_device;
|
|
#elif CONFIG_CONS_INDEX == 6
|
|
return &eserial6_device;
|
|
#else
|
|
#error "Bad CONFIG_CONS_INDEX."
|
|
#endif
|
|
}
|
|
|
|
void ns16550_serial_initialize(void)
|
|
{
|
|
#if defined(CONFIG_SYS_NS16550_COM1)
|
|
serial_register(&eserial1_device);
|
|
#endif
|
|
#if defined(CONFIG_SYS_NS16550_COM2)
|
|
serial_register(&eserial2_device);
|
|
#endif
|
|
#if defined(CONFIG_SYS_NS16550_COM3)
|
|
serial_register(&eserial3_device);
|
|
#endif
|
|
#if defined(CONFIG_SYS_NS16550_COM4)
|
|
serial_register(&eserial4_device);
|
|
#endif
|
|
#if defined(CONFIG_SYS_NS16550_COM5)
|
|
serial_register(&eserial5_device);
|
|
#endif
|
|
#if defined(CONFIG_SYS_NS16550_COM6)
|
|
serial_register(&eserial6_device);
|
|
#endif
|
|
}
|
|
|
|
#endif /* !CONFIG_NS16550_MIN_FUNCTIONS */
|