#include <watchdog.h>
#include <asm/io.h>
#include <nios2-io.h>
+#include <linux/compiler.h>
+#include <serial.h>
DECLARE_GLOBAL_DATA_PTR;
#if defined(CONFIG_SYS_NIOS_FIXEDBAUD)
-/* Everything's already setup for fixed-baud PTF
+/*
+ * Everything's already setup for fixed-baud PTF
* assignment
*/
-void serial_setbrg (void){ return; }
-int serial_init (void) { return (0);}
+static void altera_serial_setbrg(void)
+{
+}
+
+static int altera_serial_init(void)
+{
+ return 0;
+}
#else
-void serial_setbrg (void)
+static void altera_serial_setbrg(void)
{
unsigned div;
div = (CONFIG_SYS_CLK_FREQ/gd->baudrate)-1;
writel (div, &uart->divisor);
- return;
}
-int serial_init (void)
+static int altera_serial_init(void)
{
- serial_setbrg ();
- return (0);
+ serial_setbrg();
+ return 0;
}
#endif /* CONFIG_SYS_NIOS_FIXEDBAUD */
/*-----------------------------------------------------------------------
* UART CONSOLE
*---------------------------------------------------------------------*/
-void serial_putc (char c)
+static void altera_serial_putc(char c)
{
if (c == '\n')
serial_putc ('\r');
writel ((unsigned char)c, &uart->txdata);
}
-void serial_puts (const char *s)
-{
- while (*s != 0) {
- serial_putc (*s++);
- }
-}
-
-int serial_tstc (void)
+static int altera_serial_tstc(void)
{
return (readl (&uart->status) & NIOS_UART_RRDY);
}
-int serial_getc (void)
+static int altera_serial_getc(void)
{
while (serial_tstc () == 0)
WATCHDOG_RESET ();
return (readl (&uart->rxdata) & 0x00ff );
}
+
+static struct serial_device altera_serial_drv = {
+ .name = "altera_serial",
+ .start = altera_serial_init,
+ .stop = NULL,
+ .setbrg = altera_serial_setbrg,
+ .putc = altera_serial_putc,
+ .puts = default_serial_puts,
+ .getc = altera_serial_getc,
+ .tstc = altera_serial_tstc,
+};
+
+void altera_serial_initialize(void)
+{
+ serial_register(&altera_serial_drv);
+}
+
+__weak struct serial_device *default_serial_console(void)
+{
+ return &altera_serial_drv;
+}