* (C) Copyright 2004, Psyent Corporation <www.psyent.com>
* Scott McNutt <smcnutt@psyent.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>
#include <watchdog.h>
#include <asm/io.h>
-#include <nios2-io.h>
#include <linux/compiler.h>
#include <serial.h>
+typedef volatile struct {
+ unsigned data; /* Data register */
+ unsigned control; /* Control register */
+} nios_jtag_t;
+
+/* data register */
+#define NIOS_JTAG_RVALID (1<<15) /* Read valid */
+#define NIOS_JTAG_DATA(d) ((d)&0x0ff) /* Read data */
+#define NIOS_JTAG_RAVAIL(d) ((d)>>16) /* Read space avail */
+
+/* control register */
+#define NIOS_JTAG_RE (1 << 0) /* read intr enable */
+#define NIOS_JTAG_WE (1 << 1) /* write intr enable */
+#define NIOS_JTAG_RI (1 << 8) /* read intr pending */
+#define NIOS_JTAG_WI (1 << 9) /* write intr pending*/
+#define NIOS_JTAG_AC (1 << 10) /* activity indicator */
+#define NIOS_JTAG_RRDY (1 << 12) /* read available */
+#define NIOS_JTAG_WSPACE(d) ((d)>>16) /* Write space avail */
+
DECLARE_GLOBAL_DATA_PTR;
/*------------------------------------------------------------------
writel ((unsigned char)c, &jtag->data);
}
-static void altera_jtag_serial_puts(const char *s)
-{
- while (*s != 0)
- serial_putc (*s++);
-}
-
static int altera_jtag_serial_tstc(void)
{
return ( readl (&jtag->control) & NIOS_JTAG_RRDY);
return (c);
}
-#ifdef CONFIG_SERIAL_MULTI
static struct serial_device altera_jtag_serial_drv = {
.name = "altera_jtag_uart",
.start = altera_jtag_serial_init,
.stop = NULL,
.setbrg = altera_jtag_serial_setbrg,
.putc = altera_jtag_serial_putc,
- .puts = altera_jtag_serial_puts,
+ .puts = default_serial_puts,
.getc = altera_jtag_serial_getc,
.tstc = altera_jtag_serial_tstc,
};
{
return &altera_jtag_serial_drv;
}
-#else
-int serial_init(void)
-{
- return altera_jtag_serial_init();
-}
-
-void serial_setbrg(void)
-{
- altera_jtag_serial_setbrg();
-}
-
-void serial_putc(const char c)
-{
- altera_jtag_serial_putc(c);
-}
-
-void serial_puts(const char *s)
-{
- altera_jtag_serial_puts(s);
-}
-
-int serial_getc(void)
-{
- return altera_jtag_serial_getc();
-}
-
-int serial_tstc(void)
-{
- return altera_jtag_serial_tstc();
-}
-#endif