mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-07-09 20:56:16 +09:00
1c9a5606d8
The multi serial support has a "ctlr" field which almost no one uses, but everyone is forced to set to useless strings. So punt it. Funny enough, the only code that actually reads this field (the mpc8xx driver) has a typo where it meant to look for the SCC driver. Fix it while converting the check to use the name field. Signed-off-by: Mike Frysinger <vapier@gentoo.org> CC: Heiko Schocher <hs@denx.de> CC: Anatolij Gustschin <agust@denx.de> CC: Tom Rix <Tom.Rix@windriver.com> CC: Minkyu Kang <mk7.kang@samsung.com> CC: Craig Nauman <cnauman@diagraph.com> CC: Marek Vasut <marek.vasut@gmail.com> CC: Prafulla Wadaskar <prafulla@marvell.com> CC: Mahavir Jain <mjain@marvell.com>
355 lines
7.9 KiB
C
355 lines
7.9 KiB
C
/*
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* (C) Copyright 2000
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* Rob Taylor, Flying Pig Systems. robt@flyingpig.com.
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*/
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#include <common.h>
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#include <linux/compiler.h>
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#include <ns16550.h>
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#ifdef CONFIG_NS87308
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#include <ns87308.h>
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#endif
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#ifdef CONFIG_KIRKWOOD
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#include <asm/arch/kirkwood.h>
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#elif defined(CONFIG_ORION5X)
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#include <asm/arch/orion5x.h>
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#elif defined(CONFIG_ARMADA100)
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#include <asm/arch/armada100.h>
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#elif defined(CONFIG_PANTHEON)
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#include <asm/arch/pantheon.h>
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#endif
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#if defined (CONFIG_SERIAL_MULTI)
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#include <serial.h>
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#endif
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DECLARE_GLOBAL_DATA_PTR;
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#if !defined(CONFIG_CONS_INDEX)
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#if defined (CONFIG_SERIAL_MULTI)
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/* with CONFIG_SERIAL_MULTI we might have no console
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* on these devices
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*/
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#else
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#error "No console index specified."
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#endif /* CONFIG_SERIAL_MULTI */
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#elif (CONFIG_CONS_INDEX < 1) || (CONFIG_CONS_INDEX > 4)
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#error "Invalid console index value."
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#endif
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#if CONFIG_CONS_INDEX == 1 && !defined(CONFIG_SYS_NS16550_COM1)
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#error "Console port 1 defined but not configured."
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#elif CONFIG_CONS_INDEX == 2 && !defined(CONFIG_SYS_NS16550_COM2)
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#error "Console port 2 defined but not configured."
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#elif CONFIG_CONS_INDEX == 3 && !defined(CONFIG_SYS_NS16550_COM3)
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#error "Console port 3 defined but not configured."
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#elif CONFIG_CONS_INDEX == 4 && !defined(CONFIG_SYS_NS16550_COM4)
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#error "Console port 4 defined but not configured."
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#endif
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/* Note: The port number specified in the functions is 1 based.
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* the array is 0 based.
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*/
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static NS16550_t serial_ports[4] = {
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#ifdef CONFIG_SYS_NS16550_COM1
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(NS16550_t)CONFIG_SYS_NS16550_COM1,
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#else
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NULL,
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#endif
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#ifdef CONFIG_SYS_NS16550_COM2
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(NS16550_t)CONFIG_SYS_NS16550_COM2,
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#else
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NULL,
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#endif
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#ifdef CONFIG_SYS_NS16550_COM3
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(NS16550_t)CONFIG_SYS_NS16550_COM3,
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#else
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NULL,
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#endif
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#ifdef CONFIG_SYS_NS16550_COM4
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(NS16550_t)CONFIG_SYS_NS16550_COM4
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#else
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NULL
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#endif
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};
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#define PORT serial_ports[port-1]
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#if defined(CONFIG_CONS_INDEX)
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#define CONSOLE (serial_ports[CONFIG_CONS_INDEX-1])
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#endif
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#if defined(CONFIG_SERIAL_MULTI)
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/* Multi serial device functions */
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#define DECLARE_ESERIAL_FUNCTIONS(port) \
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int eserial##port##_init (void) {\
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int clock_divisor; \
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clock_divisor = calc_divisor(serial_ports[port-1]); \
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NS16550_init(serial_ports[port-1], clock_divisor); \
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return(0);}\
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void eserial##port##_setbrg (void) {\
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serial_setbrg_dev(port);}\
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int eserial##port##_getc (void) {\
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return serial_getc_dev(port);}\
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int eserial##port##_tstc (void) {\
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return serial_tstc_dev(port);}\
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void eserial##port##_putc (const char c) {\
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serial_putc_dev(port, c);}\
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void eserial##port##_puts (const char *s) {\
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serial_puts_dev(port, s);}
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/* Serial device descriptor */
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#define INIT_ESERIAL_STRUCTURE(port, name) {\
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name,\
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eserial##port##_init,\
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NULL,\
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eserial##port##_setbrg,\
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eserial##port##_getc,\
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eserial##port##_tstc,\
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eserial##port##_putc,\
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eserial##port##_puts, }
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#endif /* CONFIG_SERIAL_MULTI */
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static int calc_divisor (NS16550_t port)
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{
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#ifdef CONFIG_OMAP1510
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/* If can't cleanly clock 115200 set div to 1 */
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if ((CONFIG_SYS_NS16550_CLK == 12000000) && (gd->baudrate == 115200)) {
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port->osc_12m_sel = OSC_12M_SEL; /* enable 6.5 * divisor */
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return (1); /* return 1 for base divisor */
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}
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port->osc_12m_sel = 0; /* clear if previsouly set */
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#endif
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#ifdef CONFIG_OMAP1610
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/* If can't cleanly clock 115200 set div to 1 */
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if ((CONFIG_SYS_NS16550_CLK == 48000000) && (gd->baudrate == 115200)) {
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return (26); /* return 26 for base divisor */
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}
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#endif
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#ifdef CONFIG_APTIX
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#define MODE_X_DIV 13
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#else
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#define MODE_X_DIV 16
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#endif
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/* Compute divisor value. Normally, we should simply return:
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* CONFIG_SYS_NS16550_CLK) / MODE_X_DIV / gd->baudrate
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* but we need to round that value by adding 0.5.
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* Rounding is especially important at high baud rates.
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*/
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return (CONFIG_SYS_NS16550_CLK + (gd->baudrate * (MODE_X_DIV / 2))) /
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(MODE_X_DIV * gd->baudrate);
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}
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#if !defined(CONFIG_SERIAL_MULTI)
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int serial_init (void)
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{
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int clock_divisor;
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#ifdef CONFIG_NS87308
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initialise_ns87308();
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#endif
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#ifdef CONFIG_SYS_NS16550_COM1
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clock_divisor = calc_divisor(serial_ports[0]);
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NS16550_init(serial_ports[0], clock_divisor);
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#endif
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#ifdef CONFIG_SYS_NS16550_COM2
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clock_divisor = calc_divisor(serial_ports[1]);
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NS16550_init(serial_ports[1], clock_divisor);
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#endif
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#ifdef CONFIG_SYS_NS16550_COM3
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clock_divisor = calc_divisor(serial_ports[2]);
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NS16550_init(serial_ports[2], clock_divisor);
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#endif
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#ifdef CONFIG_SYS_NS16550_COM4
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clock_divisor = calc_divisor(serial_ports[3]);
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NS16550_init(serial_ports[3], clock_divisor);
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#endif
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return (0);
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}
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#endif
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void
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_serial_putc(const char c,const int port)
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{
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if (c == '\n')
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NS16550_putc(PORT, '\r');
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NS16550_putc(PORT, c);
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}
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void
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_serial_putc_raw(const char c,const int port)
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{
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NS16550_putc(PORT, c);
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}
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void
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_serial_puts (const char *s,const int port)
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{
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while (*s) {
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_serial_putc (*s++,port);
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}
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}
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int
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_serial_getc(const int port)
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{
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return NS16550_getc(PORT);
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}
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int
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_serial_tstc(const int port)
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{
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return NS16550_tstc(PORT);
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}
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void
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_serial_setbrg (const int port)
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{
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int clock_divisor;
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clock_divisor = calc_divisor(PORT);
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NS16550_reinit(PORT, clock_divisor);
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}
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#if defined(CONFIG_SERIAL_MULTI)
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static inline void
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serial_putc_dev(unsigned int dev_index,const char c)
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{
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_serial_putc(c,dev_index);
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}
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#else
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void
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serial_putc(const char c)
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{
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_serial_putc(c,CONFIG_CONS_INDEX);
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}
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#endif
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#if defined(CONFIG_SERIAL_MULTI)
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static inline void
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serial_putc_raw_dev(unsigned int dev_index,const char c)
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{
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_serial_putc_raw(c,dev_index);
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}
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#else
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void
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serial_putc_raw(const char c)
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{
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_serial_putc_raw(c,CONFIG_CONS_INDEX);
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}
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#endif
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#if defined(CONFIG_SERIAL_MULTI)
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static inline void
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serial_puts_dev(unsigned int dev_index,const char *s)
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{
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_serial_puts(s,dev_index);
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}
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#else
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void
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serial_puts(const char *s)
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{
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_serial_puts(s,CONFIG_CONS_INDEX);
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}
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#endif
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#if defined(CONFIG_SERIAL_MULTI)
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static inline int
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serial_getc_dev(unsigned int dev_index)
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{
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return _serial_getc(dev_index);
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}
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#else
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int
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serial_getc(void)
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{
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return _serial_getc(CONFIG_CONS_INDEX);
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}
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#endif
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#if defined(CONFIG_SERIAL_MULTI)
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static inline int
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serial_tstc_dev(unsigned int dev_index)
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{
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return _serial_tstc(dev_index);
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}
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#else
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int
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serial_tstc(void)
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{
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return _serial_tstc(CONFIG_CONS_INDEX);
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}
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#endif
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#if defined(CONFIG_SERIAL_MULTI)
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static inline void
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serial_setbrg_dev(unsigned int dev_index)
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{
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_serial_setbrg(dev_index);
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}
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#else
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void
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serial_setbrg(void)
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{
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_serial_setbrg(CONFIG_CONS_INDEX);
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}
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#endif
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#if defined(CONFIG_SERIAL_MULTI)
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DECLARE_ESERIAL_FUNCTIONS(1);
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struct serial_device eserial1_device =
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INIT_ESERIAL_STRUCTURE(1, "eserial0");
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DECLARE_ESERIAL_FUNCTIONS(2);
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struct serial_device eserial2_device =
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INIT_ESERIAL_STRUCTURE(2, "eserial1");
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DECLARE_ESERIAL_FUNCTIONS(3);
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struct serial_device eserial3_device =
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INIT_ESERIAL_STRUCTURE(3, "eserial2");
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DECLARE_ESERIAL_FUNCTIONS(4);
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struct serial_device eserial4_device =
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INIT_ESERIAL_STRUCTURE(4, "eserial3");
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__weak struct serial_device *default_serial_console(void)
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{
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#if CONFIG_CONS_INDEX == 1
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return &eserial1_device;
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#elif CONFIG_CONS_INDEX == 2
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return &eserial2_device;
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#elif CONFIG_CONS_INDEX == 3
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return &eserial3_device;
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#elif CONFIG_CONS_INDEX == 4
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return &eserial4_device;
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#else
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#error "Bad CONFIG_CONS_INDEX."
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#endif
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}
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#endif /* CONFIG_SERIAL_MULTI */
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