#include <common.h>
#include <serial.h>
#include <stdio_dev.h>
+#include <post.h>
+#include <linux/compiler.h>
DECLARE_GLOBAL_DATA_PTR;
-static struct serial_device *serial_devices = NULL;
-static struct serial_device *serial_current = NULL;
+static struct serial_device *serial_devices;
+static struct serial_device *serial_current;
-#if !defined(CONFIG_LWMON) && !defined(CONFIG_PXA27X)
-struct serial_device *__default_serial_console (void)
+static void serial_null(void)
{
-#if defined(CONFIG_8xx_CONS_SMC1) || defined(CONFIG_8xx_CONS_SMC2)
- return &serial_smc_device;
-#elif defined(CONFIG_8xx_CONS_SCC1) || defined(CONFIG_8xx_CONS_SCC2) \
- || defined(CONFIG_8xx_CONS_SCC3) || defined(CONFIG_8xx_CONS_SCC4)
- return &serial_scc_device;
-#elif defined(CONFIG_405GP) || defined(CONFIG_405CR) || defined(CONFIG_440) \
- || defined(CONFIG_405EP) || defined(CONFIG_405EZ) || defined(CONFIG_405EX) \
- || defined(CONFIG_MPC5xxx) || defined(CONFIG_MPC83xx) \
- || defined(CONFIG_MPC85xx) || defined(CONFIG_MPC86xx)
-#if defined(CONFIG_CONS_INDEX) && defined(CONFIG_SYS_NS16550_SERIAL)
-#if (CONFIG_CONS_INDEX==1)
- return &eserial1_device;
-#elif (CONFIG_CONS_INDEX==2)
- return &eserial2_device;
-#elif (CONFIG_CONS_INDEX==3)
- return &eserial3_device;
-#elif (CONFIG_CONS_INDEX==4)
- return &eserial4_device;
-#else
-#error "Bad CONFIG_CONS_INDEX."
-#endif
-#elif defined(CONFIG_UART1_CONSOLE)
- return &serial1_device;
-#else
- return &serial0_device;
-#endif
-#elif defined(CONFIG_MPC512X)
-#if (CONFIG_PSC_CONSOLE == 3)
- return &serial3_device;
-#elif (CONFIG_PSC_CONSOLE == 6)
- return &serial6_device;
-#else
-#error "Bad CONFIG_PSC_CONSOLE."
-#endif
-#elif defined(CONFIG_S3C2410)
-#if defined(CONFIG_SERIAL1)
- return &s3c24xx_serial0_device;
-#elif defined(CONFIG_SERIAL2)
- return &s3c24xx_serial1_device;
-#elif defined(CONFIG_SERIAL3)
- return &s3c24xx_serial2_device;
-#else
-#error "CONFIG_SERIAL? missing."
-#endif
-#elif defined(CONFIG_S5PC1XX)
-#if defined(CONFIG_SERIAL0)
- return &s5p_serial0_device;
-#elif defined(CONFIG_SERIAL1)
- return &s5p_serial1_device;
-#elif defined(CONFIG_SERIAL2)
- return &s5p_serial2_device;
-#elif defined(CONFIG_SERIAL3)
- return &s5p_serial3_device;
-#else
-#error "CONFIG_SERIAL? missing."
-#endif
-#elif defined(CONFIG_OMAP3_ZOOM2)
- return ZOOM2_DEFAULT_SERIAL_DEVICE;
-#else
-#error No default console
-#endif
}
-struct serial_device *default_serial_console(void) __attribute__((weak, alias("__default_serial_console")));
-#endif
+#define serial_initfunc(name) \
+ void name(void) \
+ __attribute__((weak, alias("serial_null")));
-int serial_register (struct serial_device *dev)
+serial_initfunc(mpc8xx_serial_initialize);
+serial_initfunc(pxa_serial_initialize);
+serial_initfunc(s3c24xx_serial_initialize);
+serial_initfunc(s5p_serial_initialize);
+serial_initfunc(zynq_serial_initalize);
+serial_initfunc(uartlite_serial_initialize);
+
+void serial_register(struct serial_device *dev)
{
-#ifndef CONFIG_RELOC_FIXUP_WORKS
- dev->init += gd->reloc_off;
+#ifdef CONFIG_NEEDS_MANUAL_RELOC
+ dev->start += gd->reloc_off;
dev->setbrg += gd->reloc_off;
dev->getc += gd->reloc_off;
dev->tstc += gd->reloc_off;
dev->next = serial_devices;
serial_devices = dev;
-
- return 0;
}
-void serial_initialize (void)
+void serial_initialize(void)
{
-#if defined(CONFIG_8xx_CONS_SMC1) || defined(CONFIG_8xx_CONS_SMC2)
- serial_register (&serial_smc_device);
-#endif
-#if defined(CONFIG_8xx_CONS_SCC1) || defined(CONFIG_8xx_CONS_SCC2) \
- || defined(CONFIG_8xx_CONS_SCC3) || defined(CONFIG_8xx_CONS_SCC4)
- serial_register (&serial_scc_device);
-#endif
-
-#if defined(CONFIG_405GP) || defined(CONFIG_405CR) || defined(CONFIG_440) \
- || defined(CONFIG_405EP) || defined(CONFIG_405EZ) || defined(CONFIG_405EX) \
- || defined(CONFIG_MPC5xxx)
- serial_register(&serial0_device);
- serial_register(&serial1_device);
-#endif
-
+ mpc8xx_serial_initialize();
#if defined(CONFIG_SYS_NS16550_SERIAL)
#if defined(CONFIG_SYS_NS16550_COM1)
serial_register(&eserial1_device);
serial_register(&eserial4_device);
#endif
#endif /* CONFIG_SYS_NS16550_SERIAL */
-#if defined (CONFIG_FFUART)
- serial_register(&serial_ffuart_device);
-#endif
-#if defined (CONFIG_BTUART)
- serial_register(&serial_btuart_device);
-#endif
-#if defined (CONFIG_STUART)
- serial_register(&serial_stuart_device);
-#endif
-#if defined(CONFIG_S3C2410)
- serial_register(&s3c24xx_serial0_device);
- serial_register(&s3c24xx_serial1_device);
- serial_register(&s3c24xx_serial2_device);
-#endif
-#if defined(CONFIG_S5PC1XX)
- serial_register(&s5p_serial0_device);
- serial_register(&s5p_serial1_device);
- serial_register(&s5p_serial2_device);
- serial_register(&s5p_serial3_device);
-#endif
+ pxa_serial_initialize();
+ s3c24xx_serial_initialize();
+ s5p_serial_initialize();
#if defined(CONFIG_MPC512X)
#if defined(CONFIG_SYS_PSC1)
serial_register(&serial1_device);
serial_register(&serial6_device);
#endif
#endif
- serial_assign (default_serial_console ()->name);
+#if defined(CONFIG_SYS_BFIN_UART)
+ serial_register_bfin_uart();
+#endif
+ uartlite_serial_initialize();
+ zynq_serial_initalize();
+ serial_assign(default_serial_console()->name);
}
-void serial_stdio_init (void)
+void serial_stdio_init(void)
{
struct stdio_dev dev;
struct serial_device *s = serial_devices;
while (s) {
- memset (&dev, 0, sizeof (dev));
+ memset(&dev, 0, sizeof(dev));
- strcpy (dev.name, s->name);
+ strcpy(dev.name, s->name);
dev.flags = DEV_FLAGS_OUTPUT | DEV_FLAGS_INPUT;
- dev.start = s->init;
- dev.stop = s->uninit;
+ dev.start = s->start;
+ dev.stop = s->stop;
dev.putc = s->putc;
dev.puts = s->puts;
dev.getc = s->getc;
dev.tstc = s->tstc;
- stdio_register (&dev);
+ stdio_register(&dev);
s = s->next;
}
}
-int serial_assign (char *name)
+int serial_assign(const char *name)
{
struct serial_device *s;
for (s = serial_devices; s; s = s->next) {
- if (strcmp (s->name, name) == 0) {
+ if (strcmp(s->name, name) == 0) {
serial_current = s;
return 0;
}
return 1;
}
-void serial_reinit_all (void)
+void serial_reinit_all(void)
{
struct serial_device *s;
- for (s = serial_devices; s; s = s->next) {
- s->init ();
- }
+ for (s = serial_devices; s; s = s->next)
+ s->start();
}
-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 ();
-
- return dev->init ();
- }
+ struct serial_device *dev;
- return serial_current->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;
}
-void serial_setbrg (void)
+int serial_init(void)
{
- if (!(gd->flags & GD_FLG_RELOC) || !serial_current) {
- struct serial_device *dev = default_serial_console ();
-
- dev->setbrg ();
- return;
- }
-
- serial_current->setbrg ();
+ return get_current()->start();
}
-int serial_getc (void)
+void serial_setbrg(void)
{
- if (!(gd->flags & GD_FLG_RELOC) || !serial_current) {
- struct serial_device *dev = default_serial_console ();
-
- return dev->getc ();
- }
+ get_current()->setbrg();
+}
- return serial_current->getc ();
+int serial_getc(void)
+{
+ return get_current()->getc();
}
-int serial_tstc (void)
+int serial_tstc(void)
{
- if (!(gd->flags & GD_FLG_RELOC) || !serial_current) {
- struct serial_device *dev = default_serial_console ();
+ return get_current()->tstc();
+}
- return dev->tstc ();
- }
+void serial_putc(const char c)
+{
+ get_current()->putc(c);
+}
- return serial_current->tstc ();
+void serial_puts(const char *s)
+{
+ get_current()->puts(s);
}
-void serial_putc (const char c)
+#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)
{
- if (!(gd->flags & GD_FLG_RELOC) || !serial_current) {
- struct serial_device *dev = default_serial_console ();
+ unsigned char c;
+ int ret, saved_baud, b;
+ struct serial_device *saved_dev, *s;
+ bd_t *bd = gd->bd;
- dev->putc (c);
- return;
- }
+ /* Save current serial state */
+ ret = 0;
+ saved_dev = serial_current;
+ saved_baud = bd->bi_baudrate;
- serial_current->putc (c);
-}
+ 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;
+ }
+ }
+ }
-void serial_puts (const char *s)
-{
- if (!(gd->flags & GD_FLG_RELOC) || !serial_current) {
- struct serial_device *dev = default_serial_console ();
+ /* Disable loop back */
+ s->loop(0);
- dev->puts (s);
- return;
+ /* XXX: There is no serial_stop() !? */
+ if (s->stop)
+ s->stop();
}
- 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
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