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
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176 lines
3.2 KiB
176 lines
3.2 KiB
/*
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* (C) Copyright 2001
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* Josh Huber <huber@mclx.com>, Mission Critical Linux, Inc.
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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/*
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* serial.c - serial support for the gal ev board
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*/
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/* supports both the 16650 duart and the MPSC */
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#include <common.h>
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#include <command.h>
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#include <galileo/memory.h>
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#include <serial.h>
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#include <linux/compiler.h>
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#if (defined CONFIG_SYS_INIT_CHAN1) || (defined CONFIG_SYS_INIT_CHAN2)
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#include <ns16550.h>
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#endif
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#include "serial.h"
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#include "mpsc.h"
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DECLARE_GLOBAL_DATA_PTR;
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#if (defined CONFIG_SYS_INIT_CHAN1) || (defined CONFIG_SYS_INIT_CHAN2)
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const NS16550_t COM_PORTS[] = { (NS16550_t) CONFIG_SYS_NS16550_COM1,
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(NS16550_t) CONFIG_SYS_NS16550_COM2 };
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#endif
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#ifdef CONFIG_MPSC
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static int evb64260_serial_init(void)
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{
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#if (defined CONFIG_SYS_INIT_CHAN1) || (defined CONFIG_SYS_INIT_CHAN2)
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int clock_divisor = CONFIG_SYS_NS16550_CLK / 16 / gd->baudrate;
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#endif
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mpsc_init(gd->baudrate);
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/* init the DUART chans so that KGDB in the kernel can use them */
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#ifdef CONFIG_SYS_INIT_CHAN1
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NS16550_reinit(COM_PORTS[0], clock_divisor);
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#endif
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#ifdef CONFIG_SYS_INIT_CHAN2
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NS16550_reinit(COM_PORTS[1], clock_divisor);
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#endif
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return (0);
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}
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static void evb64260_serial_putc(const char c)
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{
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if (c == '\n')
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mpsc_putchar('\r');
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mpsc_putchar(c);
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}
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static int evb64260_serial_getc(void)
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{
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return mpsc_getchar();
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}
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static int evb64260_serial_tstc(void)
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{
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return mpsc_test_char();
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}
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static void evb64260_serial_setbrg(void)
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{
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galbrg_set_baudrate(CONFIG_MPSC_PORT, gd->baudrate);
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}
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#else /* ! CONFIG_MPSC */
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static int evb64260_serial_init(void)
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{
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int clock_divisor = CONFIG_SYS_NS16550_CLK / 16 / gd->baudrate;
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#ifdef CONFIG_SYS_INIT_CHAN1
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(void)NS16550_init(COM_PORTS[0], clock_divisor);
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#endif
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#ifdef CONFIG_SYS_INIT_CHAN2
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(void)NS16550_init(COM_PORTS[1], clock_divisor);
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#endif
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return (0);
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}
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static void evb64260_serial_putc(const char c)
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{
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if (c == '\n')
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NS16550_putc(COM_PORTS[CONFIG_SYS_DUART_CHAN], '\r');
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NS16550_putc(COM_PORTS[CONFIG_SYS_DUART_CHAN], c);
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}
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static int evb64260_serial_getc(void)
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{
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return NS16550_getc(COM_PORTS[CONFIG_SYS_DUART_CHAN]);
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}
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static int evb64260_serial_tstc(void)
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{
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return NS16550_tstc(COM_PORTS[CONFIG_SYS_DUART_CHAN]);
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}
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static void evb64260_serial_setbrg(void)
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{
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int clock_divisor = CONFIG_SYS_NS16550_CLK / 16 / gd->baudrate;
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#ifdef CONFIG_SYS_INIT_CHAN1
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NS16550_reinit(COM_PORTS[0], clock_divisor);
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#endif
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#ifdef CONFIG_SYS_INIT_CHAN2
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NS16550_reinit(COM_PORTS[1], clock_divisor);
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#endif
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}
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#endif /* CONFIG_MPSC */
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static struct serial_device evb64260_serial_drv = {
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.name = "evb64260_serial",
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.start = evb64260_serial_init,
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.stop = NULL,
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.setbrg = evb64260_serial_setbrg,
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.putc = evb64260_serial_putc,
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.puts = default_serial_puts,
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.getc = evb64260_serial_getc,
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.tstc = evb64260_serial_tstc,
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};
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void evb64260_serial_initialize(void)
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{
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serial_register(&evb64260_serial_drv);
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}
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__weak struct serial_device *default_serial_console(void)
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{
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return &evb64260_serial_drv;
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}
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#if defined(CONFIG_CMD_KGDB)
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void
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kgdb_serial_init(void)
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{
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}
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void
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putDebugChar (int c)
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{
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serial_putc (c);
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}
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void
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putDebugStr (const char *str)
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{
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serial_puts (str);
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}
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int
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getDebugChar (void)
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{
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return serial_getc();
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}
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void
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kgdb_interruptible (int yes)
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{
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return;
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}
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#endif
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