#include <dm/lists.h>
#include <dm/device-internal.h>
-#include <ns16550.h>
-
DECLARE_GLOBAL_DATA_PTR;
/*
static void serial_find_console_or_panic(void)
{
+ const void *blob = gd->fdt_blob;
struct udevice *dev;
-
-#ifdef CONFIG_OF_CONTROL
int node;
- /* Check for a chosen console */
- node = fdtdec_get_chosen_node(gd->fdt_blob, "stdout-path");
- if (node < 0)
- node = fdt_path_offset(gd->fdt_blob, "console");
- if (!uclass_get_device_by_of_offset(UCLASS_SERIAL, node, &dev)) {
- gd->cur_serial_dev = dev;
- return;
- }
-
- /*
- * If the console is not marked to be bound before relocation, bind
- * it anyway.
- */
- if (node > 0 &&
- !lists_bind_fdt(gd->dm_root, gd->fdt_blob, node, &dev)) {
- if (!device_probe(dev)) {
+ if (CONFIG_IS_ENABLED(OF_PLATDATA)) {
+ uclass_first_device(UCLASS_SERIAL, &dev);
+ if (dev) {
gd->cur_serial_dev = dev;
return;
}
+ } else if (CONFIG_IS_ENABLED(OF_CONTROL) && blob) {
+ /* Check for a chosen console */
+ node = fdtdec_get_chosen_node(blob, "stdout-path");
+ if (node < 0) {
+ const char *str, *p, *name;
+
+ /*
+ * Deal with things like
+ * stdout-path = "serial0:115200n8";
+ *
+ * We need to look up the alias and then follow it to
+ * the correct node.
+ */
+ str = fdtdec_get_chosen_prop(blob, "stdout-path");
+ if (str) {
+ p = strchr(str, ':');
+ name = fdt_get_alias_namelen(blob, str,
+ p ? p - str : strlen(str));
+ if (name)
+ node = fdt_path_offset(blob, name);
+ }
+ }
+ if (node < 0)
+ node = fdt_path_offset(blob, "console");
+ if (!uclass_get_device_by_of_offset(UCLASS_SERIAL, node,
+ &dev)) {
+ gd->cur_serial_dev = dev;
+ return;
+ }
+
+ /*
+ * If the console is not marked to be bound before relocation,
+ * bind it anyway.
+ */
+ if (node > 0 &&
+ !lists_bind_fdt(gd->dm_root, blob, node, &dev)) {
+ if (!device_probe(dev)) {
+ gd->cur_serial_dev = dev;
+ return;
+ }
+ }
}
-#endif
- /*
- * Try to use CONFIG_CONS_INDEX if available (it is numbered from 1!).
- *
- * Failing that, get the device with sequence number 0, or in extremis
- * just the first serial device we can find. But we insist on having
- * a console (even if it is silent).
- */
+ if (!SPL_BUILD || !CONFIG_IS_ENABLED(OF_CONTROL) || !blob) {
+ /*
+ * Try to use CONFIG_CONS_INDEX if available (it is numbered
+ * from 1!).
+ *
+ * Failing that, get the device with sequence number 0, or in
+ * extremis just the first serial device we can find. But we
+ * insist on having a console (even if it is silent).
+ */
#ifdef CONFIG_CONS_INDEX
#define INDEX (CONFIG_CONS_INDEX - 1)
#else
#define INDEX 0
#endif
- if (uclass_get_device_by_seq(UCLASS_SERIAL, INDEX, &dev) &&
- uclass_get_device(UCLASS_SERIAL, INDEX, &dev) &&
- (uclass_first_device(UCLASS_SERIAL, &dev) || !dev))
- panic("No serial driver found");
+ if (!uclass_get_device_by_seq(UCLASS_SERIAL, INDEX, &dev) ||
+ !uclass_get_device(UCLASS_SERIAL, INDEX, &dev) ||
+ (!uclass_first_device(UCLASS_SERIAL, &dev) && dev)) {
+ gd->cur_serial_dev = dev;
+ return;
+ }
#undef INDEX
- gd->cur_serial_dev = dev;
+ }
+
+#ifdef CONFIG_REQUIRE_SERIAL_CONSOLE
+ panic_str("No serial driver found");
+#endif
}
/* Called prior to relocation */
/* Called after relocation */
void serial_initialize(void)
{
- serial_find_console_or_panic();
+ serial_init();
}
static void _serial_putc(struct udevice *dev, char ch)
struct dm_serial_ops *ops = serial_get_ops(dev);
int err;
+ if (ch == '\n')
+ _serial_putc(dev, '\r');
+
do {
err = ops->putc(dev, ch);
} while (err == -EAGAIN);
- if (ch == '\n')
- _serial_putc(dev, '\r');
}
static void _serial_puts(struct udevice *dev, const char *str)
void serial_putc(char ch)
{
- _serial_putc(gd->cur_serial_dev, ch);
+ if (gd->cur_serial_dev)
+ _serial_putc(gd->cur_serial_dev, ch);
}
void serial_puts(const char *str)
{
- _serial_puts(gd->cur_serial_dev, str);
+ if (gd->cur_serial_dev)
+ _serial_puts(gd->cur_serial_dev, str);
}
int serial_getc(void)
{
+ if (!gd->cur_serial_dev)
+ return 0;
+
return _serial_getc(gd->cur_serial_dev);
}
int serial_tstc(void)
{
+ if (!gd->cur_serial_dev)
+ return 0;
+
return _serial_tstc(gd->cur_serial_dev);
}
void serial_setbrg(void)
{
- struct dm_serial_ops *ops = serial_get_ops(gd->cur_serial_dev);
+ struct dm_serial_ops *ops;
+ if (!gd->cur_serial_dev)
+ return;
+
+ ops = serial_get_ops(gd->cur_serial_dev);
if (ops->setbrg)
ops->setbrg(gd->cur_serial_dev, gd->baudrate);
}
{
}
-#ifdef CONFIG_DM_STDIO
+#if defined(CONFIG_DM_STDIO) && CONFIG_IS_ENABLED(SERIAL_PRESENT)
static void serial_stub_putc(struct stdio_dev *sdev, const char ch)
{
_serial_putc(sdev->priv, ch);
}
U_BOOT_ENV_CALLBACK(baudrate, on_baudrate);
+#if CONFIG_IS_ENABLED(SERIAL_PRESENT)
static int serial_post_probe(struct udevice *dev)
{
struct dm_serial_ops *ops = serial_get_ops(dev);
#ifdef CONFIG_DM_STDIO
- struct serial_dev_priv *upriv = dev->uclass_priv;
+ struct serial_dev_priv *upriv = dev_get_uclass_priv(dev);
struct stdio_dev sdev;
#endif
int ret;
+#if defined(CONFIG_NEEDS_MANUAL_RELOC)
+ if (ops->setbrg)
+ ops->setbrg += gd->reloc_off;
+ if (ops->getc)
+ ops->getc += gd->reloc_off;
+ if (ops->putc)
+ ops->putc += gd->reloc_off;
+ if (ops->pending)
+ ops->pending += gd->reloc_off;
+ if (ops->clear)
+ ops->clear += gd->reloc_off;
+#if CONFIG_POST & CONFIG_SYS_POST_UART
+ if (ops->loop)
+ ops->loop += gd->reloc_off
+#endif
+#endif
/* Set the baud rate */
if (ops->setbrg) {
ret = ops->setbrg(dev, gd->baudrate);
static int serial_pre_remove(struct udevice *dev)
{
-#ifdef CONFIG_SYS_STDIO_DEREGISTER
- struct serial_dev_priv *upriv = dev->uclass_priv;
+#if CONFIG_IS_ENABLED(SYS_STDIO_DEREGISTER)
+ struct serial_dev_priv *upriv = dev_get_uclass_priv(dev);
if (stdio_deregister_dev(upriv->sdev, 0))
return -EPERM;
.pre_remove = serial_pre_remove,
.per_device_auto_alloc_size = sizeof(struct serial_dev_priv),
};
+#endif
projects / u-boot / blobdiff