mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-11 05:42:58 +00:00
91092132ba
The rest of the unmigrated CONFIG symbols in the CONFIG_SYS_NS16550 namespace do not easily transition to Kconfig. In many cases they likely should come from the device tree instead. Move these out of CONFIG namespace and in to CFG namespace. Signed-off-by: Tom Rini <trini@konsulko.com> Reviewed-by: Simon Glass <sjg@chromium.org>
254 lines
5.8 KiB
C
254 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 <clock_legacy.h>
|
|
#include <ns16550.h>
|
|
#include <serial.h>
|
|
#include <asm/global_data.h>
|
|
#include <linux/compiler.h>
|
|
|
|
#if !CONFIG_IS_ENABLED(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(CFG_SYS_NS16550_COM1)
|
|
#error "Console port 1 defined but not configured."
|
|
#elif CONFIG_CONS_INDEX == 2 && !defined(CFG_SYS_NS16550_COM2)
|
|
#error "Console port 2 defined but not configured."
|
|
#elif CONFIG_CONS_INDEX == 3 && !defined(CFG_SYS_NS16550_COM3)
|
|
#error "Console port 3 defined but not configured."
|
|
#elif CONFIG_CONS_INDEX == 4 && !defined(CFG_SYS_NS16550_COM4)
|
|
#error "Console port 4 defined but not configured."
|
|
#elif CONFIG_CONS_INDEX == 5 && !defined(CFG_SYS_NS16550_COM5)
|
|
#error "Console port 5 defined but not configured."
|
|
#elif CONFIG_CONS_INDEX == 6 && !defined(CFG_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 struct ns16550 *serial_ports[6] = {
|
|
#ifdef CFG_SYS_NS16550_COM1
|
|
(struct ns16550 *)CFG_SYS_NS16550_COM1,
|
|
#else
|
|
NULL,
|
|
#endif
|
|
#ifdef CFG_SYS_NS16550_COM2
|
|
(struct ns16550 *)CFG_SYS_NS16550_COM2,
|
|
#else
|
|
NULL,
|
|
#endif
|
|
#ifdef CFG_SYS_NS16550_COM3
|
|
(struct ns16550 *)CFG_SYS_NS16550_COM3,
|
|
#else
|
|
NULL,
|
|
#endif
|
|
#ifdef CFG_SYS_NS16550_COM4
|
|
(struct ns16550 *)CFG_SYS_NS16550_COM4,
|
|
#else
|
|
NULL,
|
|
#endif
|
|
#ifdef CFG_SYS_NS16550_COM5
|
|
(struct ns16550 *)CFG_SYS_NS16550_COM5,
|
|
#else
|
|
NULL,
|
|
#endif
|
|
#ifdef CFG_SYS_NS16550_COM6
|
|
(struct ns16550 *)CFG_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], \
|
|
CFG_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, CFG_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(CFG_SYS_NS16550_COM1)
|
|
DECLARE_ESERIAL_FUNCTIONS(1);
|
|
struct serial_device eserial1_device =
|
|
INIT_ESERIAL_STRUCTURE(1, "eserial0");
|
|
#endif
|
|
#if defined(CFG_SYS_NS16550_COM2)
|
|
DECLARE_ESERIAL_FUNCTIONS(2);
|
|
struct serial_device eserial2_device =
|
|
INIT_ESERIAL_STRUCTURE(2, "eserial1");
|
|
#endif
|
|
#if defined(CFG_SYS_NS16550_COM3)
|
|
DECLARE_ESERIAL_FUNCTIONS(3);
|
|
struct serial_device eserial3_device =
|
|
INIT_ESERIAL_STRUCTURE(3, "eserial2");
|
|
#endif
|
|
#if defined(CFG_SYS_NS16550_COM4)
|
|
DECLARE_ESERIAL_FUNCTIONS(4);
|
|
struct serial_device eserial4_device =
|
|
INIT_ESERIAL_STRUCTURE(4, "eserial3");
|
|
#endif
|
|
#if defined(CFG_SYS_NS16550_COM5)
|
|
DECLARE_ESERIAL_FUNCTIONS(5);
|
|
struct serial_device eserial5_device =
|
|
INIT_ESERIAL_STRUCTURE(5, "eserial4");
|
|
#endif
|
|
#if defined(CFG_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(CFG_SYS_NS16550_COM1)
|
|
serial_register(&eserial1_device);
|
|
#endif
|
|
#if defined(CFG_SYS_NS16550_COM2)
|
|
serial_register(&eserial2_device);
|
|
#endif
|
|
#if defined(CFG_SYS_NS16550_COM3)
|
|
serial_register(&eserial3_device);
|
|
#endif
|
|
#if defined(CFG_SYS_NS16550_COM4)
|
|
serial_register(&eserial4_device);
|
|
#endif
|
|
#if defined(CFG_SYS_NS16550_COM5)
|
|
serial_register(&eserial5_device);
|
|
#endif
|
|
#if defined(CFG_SYS_NS16550_COM6)
|
|
serial_register(&eserial6_device);
|
|
#endif
|
|
}
|
|
|
|
#endif /* !CONFIG_IS_ENABLED(NS16550_MIN_FUNCTIONS) */
|