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path: root/drivers/serial/serial-uclass.c
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Diffstat (limited to 'drivers/serial/serial-uclass.c')
-rw-r--r--drivers/serial/serial-uclass.c35
1 files changed, 19 insertions, 16 deletions
diff --git a/drivers/serial/serial-uclass.c b/drivers/serial/serial-uclass.c
index 71f1a5c..0f019c8 100644
--- a/drivers/serial/serial-uclass.c
+++ b/drivers/serial/serial-uclass.c
@@ -19,15 +19,14 @@
DECLARE_GLOBAL_DATA_PTR;
-/* The currently-selected console serial device */
-struct udevice *cur_dev __attribute__ ((section(".data")));
-
#ifndef CONFIG_SYS_MALLOC_F_LEN
#error "Serial is required before relocation - define CONFIG_SYS_MALLOC_F_LEN to make this work"
#endif
static void serial_find_console_or_panic(void)
{
+ struct udevice *dev;
+
#ifdef CONFIG_OF_CONTROL
int node;
@@ -35,18 +34,21 @@ static void serial_find_console_or_panic(void)
node = fdtdec_get_chosen_node(gd->fdt_blob, "stdout-path");
if (node < 0)
node = fdtdec_get_alias_node(gd->fdt_blob, "console");
- if (!uclass_get_device_by_of_offset(UCLASS_SERIAL, node, &cur_dev))
+ 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, &cur_dev)) {
- if (!device_probe(cur_dev))
+ !lists_bind_fdt(gd->dm_root, gd->fdt_blob, node, &dev)) {
+ if (!device_probe(dev)) {
+ gd->cur_serial_dev = dev;
return;
- cur_dev = NULL;
+ }
}
#endif
/*
@@ -61,11 +63,12 @@ static void serial_find_console_or_panic(void)
#else
#define INDEX 0
#endif
- if (uclass_get_device_by_seq(UCLASS_SERIAL, INDEX, &cur_dev) &&
- uclass_get_device(UCLASS_SERIAL, INDEX, &cur_dev) &&
- (uclass_first_device(UCLASS_SERIAL, &cur_dev) || !cur_dev))
+ 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");
#undef INDEX
+ gd->cur_serial_dev = dev;
}
/* Called prior to relocation */
@@ -127,30 +130,30 @@ static int _serial_tstc(struct udevice *dev)
void serial_putc(char ch)
{
- _serial_putc(cur_dev, ch);
+ _serial_putc(gd->cur_serial_dev, ch);
}
void serial_puts(const char *str)
{
- _serial_puts(cur_dev, str);
+ _serial_puts(gd->cur_serial_dev, str);
}
int serial_getc(void)
{
- return _serial_getc(cur_dev);
+ return _serial_getc(gd->cur_serial_dev);
}
int serial_tstc(void)
{
- return _serial_tstc(cur_dev);
+ return _serial_tstc(gd->cur_serial_dev);
}
void serial_setbrg(void)
{
- struct dm_serial_ops *ops = serial_get_ops(cur_dev);
+ struct dm_serial_ops *ops = serial_get_ops(gd->cur_serial_dev);
if (ops->setbrg)
- ops->setbrg(cur_dev, gd->baudrate);
+ ops->setbrg(gd->cur_serial_dev, gd->baudrate);
}
void serial_stdio_init(void)