* (C) Copyright 2004-2007 Freescale Semiconductor, Inc.
* TsiChung Liew, Tsi-Chung.Liew@freescale.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 <common.h>
-
-#ifdef CONFIG_MCFUART
+#include <serial.h>
+#include <linux/compiler.h>
#include <asm/immap.h>
#include <asm/uart.h>
DECLARE_GLOBAL_DATA_PTR;
-extern void uart_port_conf(void);
+extern void uart_port_conf(int port);
-int serial_init(void)
+static int mcf_serial_init(void)
{
volatile uart_t *uart;
u32 counter;
- uart = (volatile uart_t *)(CFG_UART_BASE);
+ uart = (volatile uart_t *)(CONFIG_SYS_UART_BASE);
- uart_port_conf();
+ uart_port_conf(CONFIG_SYS_UART_PORT);
/* write to SICR: SIM2 = uart mode,dcd does not affect rx */
uart->ucr = UART_UCR_RESET_RX;
return (0);
}
-void serial_putc(const char c)
+static void mcf_serial_putc(const char c)
{
- volatile uart_t *uart = (volatile uart_t *)(CFG_UART_BASE);
+ volatile uart_t *uart = (volatile uart_t *)(CONFIG_SYS_UART_BASE);
if (c == '\n')
serial_putc('\r');
uart->utb = c;
}
-void serial_puts(const char *s)
+static int mcf_serial_getc(void)
{
- while (*s) {
- serial_putc(*s++);
- }
-}
-
-int serial_getc(void)
-{
- volatile uart_t *uart = (volatile uart_t *)(CFG_UART_BASE);
+ volatile uart_t *uart = (volatile uart_t *)(CONFIG_SYS_UART_BASE);
/* Wait for a character to arrive. */
while (!(uart->usr & UART_USR_RXRDY)) ;
return uart->urb;
}
-int serial_tstc(void)
+static int mcf_serial_tstc(void)
{
- volatile uart_t *uart = (volatile uart_t *)(CFG_UART_BASE);
+ volatile uart_t *uart = (volatile uart_t *)(CONFIG_SYS_UART_BASE);
return (uart->usr & UART_USR_RXRDY);
}
-void serial_setbrg(void)
+static void mcf_serial_setbrg(void)
{
- volatile uart_t *uart = (volatile uart_t *)(CFG_UART_BASE);
+ volatile uart_t *uart = (volatile uart_t *)(CONFIG_SYS_UART_BASE);
u32 counter;
- counter = ((gd->bus_clk / gd->baudrate)) >> 5;
- counter++;
+ /* Setting up BaudRate */
+ counter = (u32) ((gd->bus_clk / 32) + (gd->baudrate / 2));
+ counter = counter / gd->baudrate;
/* write to CTUR: divide counter upper byte */
uart->ubg1 = ((counter & 0xff00) >> 8);
uart->ucr = UART_UCR_RX_ENABLED | UART_UCR_TX_ENABLED;
}
-#endif /* CONFIG_MCFUART */
+
+static struct serial_device mcf_serial_drv = {
+ .name = "mcf_serial",
+ .start = mcf_serial_init,
+ .stop = NULL,
+ .setbrg = mcf_serial_setbrg,
+ .putc = mcf_serial_putc,
+ .puts = default_serial_puts,
+ .getc = mcf_serial_getc,
+ .tstc = mcf_serial_tstc,
+};
+
+void mcf_serial_initialize(void)
+{
+ serial_register(&mcf_serial_drv);
+}
+
+__weak struct serial_device *default_serial_console(void)
+{
+ return &mcf_serial_drv;
+}