xilinx-zynqmp-rpu/console/console-config.c

0001 /*
0002  * SPDX-License-Identifier: BSD-2-Clause
0003  *
0004  * Copyright (C) 2013, 2017 embedded brains GmbH
0005  *
0006  * Copyright (C) 2019 DornerWorks
0007  *
0008  * Written by Jeff Kubascik <jeff.kubascik@dornerworks.com>
0009  *        and Josh Whitehead <josh.whitehead@dornerworks.com>
0010  *
0011  * Redistribution and use in source and binary forms, with or without
0012  * modification, are permitted provided that the following conditions
0013  * are met:
0014  * 1. Redistributions of source code must retain the above copyright
0015  *    notice, this list of conditions and the following disclaimer.
0016  * 2. Redistributions in binary form must reproduce the above copyright
0017  *    notice, this list of conditions and the following disclaimer in the
0018  *    documentation and/or other materials provided with the distribution.
0019  *
0020  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
0021  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
0022  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
0023  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
0024  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
0025  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
0026  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
0027  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
0028  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
0029  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
0030  * POSSIBILITY OF SUCH DAMAGE.
0031  */
0032
0033 #include <rtems/console.h>
0034 #include <rtems/bspIo.h>
0035 #include <rtems/termiostypes.h>
0036
0037 #include <bsp/irq.h>
0038 #include <dev/serial/zynq-uart.h>
0039 #include <dev/serial/zynq-uart-regs.h>
0040
0041 #include <bspopts.h>
0042
0043 static zynq_uart_context zynqmp_uart_instances[2] = {
0044   {
0045     .base = RTEMS_TERMIOS_DEVICE_CONTEXT_INITIALIZER( "Zynq UART 0" ),
0046     .regs = (volatile zynq_uart *) ZYNQ_UART_0_BASE_ADDR,
0047     .irq = ZYNQMP_IRQ_UART_0
0048   }, {
0049     .base = RTEMS_TERMIOS_DEVICE_CONTEXT_INITIALIZER( "Zynq UART 1" ),
0050     .regs = (volatile zynq_uart *) ZYNQ_UART_1_BASE_ADDR,
0051     .irq = ZYNQMP_IRQ_UART_1
0052   }
0053 };
0054
0055 rtems_status_code console_initialize(
0056   rtems_device_major_number major,
0057   rtems_device_minor_number minor,
0058   void *arg
0059 )
0060 {
0061   size_t i;
0062
0063   for (i = 0; i < RTEMS_ARRAY_SIZE(zynqmp_uart_instances); ++i) {
0064     zynq_uart_context *ctx = &zynqmp_uart_instances[i];
0065     char uart[] = "/dev/ttySX";
0066
0067     uart[sizeof(uart) - 2] = (char) ('0' + i);
0068     rtems_termios_device_install(
0069       &uart[0],
0070       &zynq_uart_handler,
0071       NULL,
0072       &ctx->base
0073     );
0074
0075     if (ctx->regs == (zynq_uart *) ZYNQ_UART_KERNEL_IO_BASE_ADDR) {
0076       link(&uart[0], CONSOLE_DEVICE_NAME);
0077     }
0078   }
0079
0080   return RTEMS_SUCCESSFUL;
0081 }
0082
0083 void zynqmp_debug_console_flush(void)
0084 {
0085   zynq_uart_reset_tx_flush((zynq_uart *) ZYNQ_UART_KERNEL_IO_BASE_ADDR);
0086 }