X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=drivers%2Fserial%2Fserial_ns16550.c;h=fcb1e95e81002ab49244d4bf5f3482afe407cd81;hb=1221ce459d04a428f8880f58581f671b736c3c27;hp=4176e257e050f744d4aee5fe7ce58ff9f98f4a38;hpb=5bb3505fa867ded03cbee83f7722ab5182930637;p=u-boot diff --git a/drivers/serial/serial_ns16550.c b/drivers/serial/serial_ns16550.c index 4176e257e0..fcb1e95e81 100644 --- a/drivers/serial/serial_ns16550.c +++ b/drivers/serial/serial_ns16550.c @@ -2,23 +2,7 @@ * (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 + * SPDX-License-Identifier: GPL-2.0+ */ #include @@ -31,10 +15,12 @@ #include +#ifndef CONFIG_NS16550_MIN_FUNCTIONS + DECLARE_GLOBAL_DATA_PTR; #if !defined(CONFIG_CONS_INDEX) -#elif (CONFIG_CONS_INDEX < 1) || (CONFIG_CONS_INDEX > 4) +#elif (CONFIG_CONS_INDEX < 1) || (CONFIG_CONS_INDEX > 6) #error "Invalid console index value." #endif @@ -46,12 +32,16 @@ DECLARE_GLOBAL_DATA_PTR; #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[4] = { +static NS16550_t serial_ports[6] = { #ifdef CONFIG_SYS_NS16550_COM1 (NS16550_t)CONFIG_SYS_NS16550_COM1, #else @@ -68,7 +58,17 @@ static NS16550_t serial_ports[4] = { NULL, #endif #ifdef CONFIG_SYS_NS16550_COM4 - (NS16550_t)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 @@ -78,21 +78,34 @@ static NS16550_t serial_ports[4] = { /* Multi serial device functions */ #define DECLARE_ESERIAL_FUNCTIONS(port) \ - static 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);}\ - 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);} + 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) { \ @@ -106,40 +119,7 @@ static NS16550_t serial_ports[4] = { .puts = eserial##port##_puts, \ } -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); -} - -void -_serial_putc(const char c,const int port) +static void _serial_putc(const char c, const int port) { if (c == '\n') NS16550_putc(PORT, '\r'); @@ -147,39 +127,29 @@ _serial_putc(const char c,const int port) 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) +static void _serial_puts(const char *s, const int port) { while (*s) { - _serial_putc (*s++,port); + _serial_putc(*s++, port); } } - -int -_serial_getc(const int port) +static int _serial_getc(const int port) { return NS16550_getc(PORT); } -int -_serial_tstc(const int port) +static int _serial_tstc(const int port) { return NS16550_tstc(PORT); } -void -_serial_setbrg (const int port) +static void _serial_setbrg(const int port) { int clock_divisor; - clock_divisor = calc_divisor(PORT); + clock_divisor = ns16550_calc_divisor(PORT, CONFIG_SYS_NS16550_CLK, + gd->baudrate); NS16550_reinit(PORT, clock_divisor); } @@ -189,12 +159,6 @@ serial_putc_dev(unsigned int dev_index,const char c) _serial_putc(c,dev_index); } -static inline void -serial_putc_raw_dev(unsigned int dev_index,const char c) -{ - _serial_putc_raw(c,dev_index); -} - static inline void serial_puts_dev(unsigned int dev_index,const char *s) { @@ -219,18 +183,36 @@ 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) { @@ -242,6 +224,10 @@ __weak struct serial_device *default_serial_console(void) 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 @@ -261,4 +247,12 @@ void ns16550_serial_initialize(void) #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 */