#include <common.h>
#include <serial.h>
#include <stdio_dev.h>
+#include <post.h>
+#include <linux/compiler.h>
DECLARE_GLOBAL_DATA_PTR;
serial_register(&serial6_device);
#endif
#endif
+#if defined(CONFIG_SYS_BFIN_UART)
+ serial_register_bfin_uart();
+#endif
+#if defined(CONFIG_XILINX_UARTLITE)
+# ifdef XILINX_UARTLITE_BASEADDR
+ serial_register(&uartlite_serial0_device);
+# endif /* XILINX_UARTLITE_BASEADDR */
+# ifdef XILINX_UARTLITE_BASEADDR1
+ serial_register(&uartlite_serial1_device);
+# endif /* XILINX_UARTLITE_BASEADDR1 */
+# ifdef XILINX_UARTLITE_BASEADDR2
+ serial_register(&uartlite_serial2_device);
+# endif /* XILINX_UARTLITE_BASEADDR2 */
+# ifdef XILINX_UARTLITE_BASEADDR3
+ serial_register(&uartlite_serial3_device);
+# endif /* XILINX_UARTLITE_BASEADDR3 */
+#endif /* CONFIG_XILINX_UARTLITE */
serial_assign (default_serial_console ()->name);
}
}
}
-int serial_init (void)
+static struct serial_device *get_current(void)
{
- if (!(gd->flags & GD_FLG_RELOC) || !serial_current) {
- struct serial_device *dev = default_serial_console ();
+ struct serial_device *dev;
- return dev->init ();
- }
+ if (!(gd->flags & GD_FLG_RELOC) || !serial_current) {
+ dev = default_serial_console();
+
+ /* We must have a console device */
+ if (!dev)
+ panic("Cannot find console");
+ } else
+ dev = serial_current;
+ return dev;
+}
- return serial_current->init ();
+int serial_init(void)
+{
+ return get_current()->init();
}
void serial_setbrg (void)
{
- if (!(gd->flags & GD_FLG_RELOC) || !serial_current) {
- struct serial_device *dev = default_serial_console ();
-
- dev->setbrg ();
- return;
- }
-
- serial_current->setbrg ();
+ get_current()->setbrg();
}
int serial_getc (void)
{
- if (!(gd->flags & GD_FLG_RELOC) || !serial_current) {
- struct serial_device *dev = default_serial_console ();
-
- return dev->getc ();
- }
-
- return serial_current->getc ();
+ return get_current()->getc();
}
int serial_tstc (void)
{
- if (!(gd->flags & GD_FLG_RELOC) || !serial_current) {
- struct serial_device *dev = default_serial_console ();
-
- return dev->tstc ();
- }
-
- return serial_current->tstc ();
+ return get_current()->tstc();
}
void serial_putc (const char c)
{
- if (!(gd->flags & GD_FLG_RELOC) || !serial_current) {
- struct serial_device *dev = default_serial_console ();
-
- dev->putc (c);
- return;
- }
-
- serial_current->putc (c);
+ get_current()->putc(c);
}
void serial_puts (const char *s)
{
- if (!(gd->flags & GD_FLG_RELOC) || !serial_current) {
- struct serial_device *dev = default_serial_console ();
+ get_current()->puts(s);
+}
- dev->puts (s);
- return;
+#if CONFIG_POST & CONFIG_SYS_POST_UART
+static const int bauds[] = CONFIG_SYS_BAUDRATE_TABLE;
+
+/* Mark weak until post/cpu/.../uart.c migrate over */
+__weak
+int uart_post_test(int flags)
+{
+ unsigned char c;
+ int ret, saved_baud, b;
+ struct serial_device *saved_dev, *s;
+ bd_t *bd = gd->bd;
+
+ /* Save current serial state */
+ ret = 0;
+ saved_dev = serial_current;
+ saved_baud = bd->bi_baudrate;
+
+ for (s = serial_devices; s; s = s->next) {
+ /* If this driver doesn't support loop back, skip it */
+ if (!s->loop)
+ continue;
+
+ /* Test the next device */
+ serial_current = s;
+
+ ret = serial_init();
+ if (ret)
+ goto done;
+
+ /* Consume anything that happens to be queued */
+ while (serial_tstc())
+ serial_getc();
+
+ /* Enable loop back */
+ s->loop(1);
+
+ /* Test every available baud rate */
+ for (b = 0; b < ARRAY_SIZE(bauds); ++b) {
+ bd->bi_baudrate = bauds[b];
+ serial_setbrg();
+
+ /*
+ * Stick to printable chars to avoid issues:
+ * - terminal corruption
+ * - serial program reacting to sequences and sending
+ * back random extra data
+ * - most serial drivers add in extra chars (like \r\n)
+ */
+ for (c = 0x20; c < 0x7f; ++c) {
+ /* Send it out */
+ serial_putc(c);
+
+ /* Make sure it's the same one */
+ ret = (c != serial_getc());
+ if (ret) {
+ s->loop(0);
+ goto done;
+ }
+
+ /* Clean up the output in case it was sent */
+ serial_putc('\b');
+ ret = ('\b' != serial_getc());
+ if (ret) {
+ s->loop(0);
+ goto done;
+ }
+ }
+ }
+
+ /* Disable loop back */
+ s->loop(0);
+
+ /* XXX: There is no serial_uninit() !? */
+ if (s->uninit)
+ s->uninit();
}
- serial_current->puts (s);
+ done:
+ /* Restore previous serial state */
+ serial_current = saved_dev;
+ bd->bi_baudrate = saved_baud;
+ serial_reinit_all();
+ serial_setbrg();
+
+ return ret;
}
+#endif