diff --git a/arch/sandbox/cpu/os.c b/arch/sandbox/cpu/os.c
index f937991139..01845e388d 100644
--- a/arch/sandbox/cpu/os.c
+++ b/arch/sandbox/cpu/os.c
@@ -669,6 +669,11 @@ void os_puts(const char *str)
 		os_putc(*str++);
 }
 
+void os_flush(void)
+{
+	fflush(stdout);
+}
+
 int os_write_ram_buf(const char *fname)
 {
 	struct sandbox_state *state = state_get_current();
diff --git a/boot/bootm_os.c b/boot/bootm_os.c
index f31820cd07..079224ce58 100644
--- a/boot/bootm_os.c
+++ b/boot/bootm_os.c
@@ -303,6 +303,7 @@ static void do_bootvx_fdt(bootm_headers_t *images)
 #else
 	printf("## Starting vxWorks at 0x%08lx\n", (ulong)images->ep);
 #endif
+	flush();
 
 	boot_jump_vxworks(images);
 
diff --git a/cmd/boot.c b/cmd/boot.c
index be67a5980d..14839c1ced 100644
--- a/cmd/boot.c
+++ b/cmd/boot.c
@@ -32,6 +32,7 @@ static int do_go(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
 	addr = hextoul(argv[1], NULL);
 
 	printf ("## Starting application at 0x%08lX ...\n", addr);
+	flush();
 
 	/*
 	 * pass address parameter as argv[0] (aka command name),
diff --git a/cmd/elf.c b/cmd/elf.c
index ce40d3f72a..b7b9f506a5 100644
--- a/cmd/elf.c
+++ b/cmd/elf.c
@@ -72,6 +72,7 @@ int do_bootelf(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
 		return rcode;
 
 	printf("## Starting application at 0x%08lx ...\n", addr);
+	flush();
 
 	/*
 	 * pass address parameter as argv[0] (aka command name),
@@ -274,6 +275,7 @@ int do_bootvx(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
 		puts("## Not an ELF image, assuming binary\n");
 
 	printf("## Starting vxWorks at 0x%08lx ...\n", addr);
+	flush();
 
 	dcache_disable();
 #if defined(CONFIG_ARM64) && defined(CONFIG_ARMV8_PSCI)
diff --git a/cmd/load.c b/cmd/load.c
index e44ae0d56b..5c4f34781d 100644
--- a/cmd/load.c
+++ b/cmd/load.c
@@ -83,6 +83,7 @@ static int do_load_serial(struct cmd_tbl *cmdtp, int flag, int argc,
 		printf("## Switch baudrate to %d bps and press ENTER ...\n",
 			load_baudrate);
 		udelay(50000);
+		flush();
 		gd->baudrate = load_baudrate;
 		serial_setbrg();
 		udelay(50000);
@@ -126,6 +127,7 @@ static int do_load_serial(struct cmd_tbl *cmdtp, int flag, int argc,
 		printf("## Switch baudrate to %d bps and press ESC ...\n",
 			current_baudrate);
 		udelay(50000);
+		flush();
 		gd->baudrate = current_baudrate;
 		serial_setbrg();
 		udelay(50000);
@@ -317,6 +319,7 @@ int do_save_serial(struct cmd_tbl *cmdtp, int flag, int argc,
 		printf("## Switch baudrate to %d bps and press ESC ...\n",
 			(int)current_baudrate);
 		udelay(50000);
+		flush();
 		gd->baudrate = current_baudrate;
 		serial_setbrg();
 		udelay(50000);
@@ -471,6 +474,7 @@ static int do_load_serial_bin(struct cmd_tbl *cmdtp, int flag, int argc,
 		printf("## Switch baudrate to %d bps and press ENTER ...\n",
 			load_baudrate);
 		udelay(50000);
+		flush();
 		gd->baudrate = load_baudrate;
 		serial_setbrg();
 		udelay(50000);
@@ -533,6 +537,7 @@ static int do_load_serial_bin(struct cmd_tbl *cmdtp, int flag, int argc,
 		printf("## Switch baudrate to %d bps and press ESC ...\n",
 			current_baudrate);
 		udelay(50000);
+		flush();
 		gd->baudrate = current_baudrate;
 		serial_setbrg();
 		udelay(50000);
diff --git a/common/Kconfig b/common/Kconfig
index b776c5ca1e..6591acd2fd 100644
--- a/common/Kconfig
+++ b/common/Kconfig
@@ -186,6 +186,12 @@ config PRE_CON_BUF_ADDR
 	  We should consider removing this option and allocating the memory
 	  in board_init_f_init_reserve() instead.
 
+config CONSOLE_FLUSH_SUPPORT
+	bool "Enable console flush support"
+	default y
+	help
+	  This enables compilation of flush() function for console flush support.
+
 config CONSOLE_MUX
 	bool "Enable console multiplexing"
 	default y if DM_VIDEO || VIDEO || LCD
diff --git a/common/console.c b/common/console.c
index e5be6ff44b..0c9bf66c3f 100644
--- a/common/console.c
+++ b/common/console.c
@@ -199,6 +199,7 @@ static int console_setfile(int file, struct stdio_dev * dev)
 		case stdout:
 			gd->jt->putc  = putc;
 			gd->jt->puts  = puts;
+			STDIO_DEV_ASSIGN_FLUSH(gd->jt, flush);
 			gd->jt->printf = printf;
 			break;
 		}
@@ -364,6 +365,19 @@ static void console_puts(int file, const char *s)
 	}
 }
 
+#ifdef CONFIG_CONSOLE_FLUSH_SUPPORT
+static void console_flush(int file)
+{
+	int i;
+	struct stdio_dev *dev;
+
+	for_each_console_dev(i, file, dev) {
+		if (dev->flush != NULL)
+			dev->flush(dev);
+	}
+}
+#endif
+
 #if CONFIG_IS_ENABLED(SYS_CONSOLE_IS_IN_ENV)
 static inline void console_doenv(int file, struct stdio_dev *dev)
 {
@@ -413,6 +427,14 @@ static inline void console_puts(int file, const char *s)
 	stdio_devices[file]->puts(stdio_devices[file], s);
 }
 
+#ifdef CONFIG_CONSOLE_FLUSH_SUPPORT
+static inline void console_flush(int file)
+{
+	if (stdio_devices[file]->flush)
+		stdio_devices[file]->flush(stdio_devices[file]);
+}
+#endif
+
 #if CONFIG_IS_ENABLED(SYS_CONSOLE_IS_IN_ENV)
 static inline void console_doenv(int file, struct stdio_dev *dev)
 {
@@ -526,6 +548,14 @@ void fputs(int file, const char *s)
 		console_puts(file, s);
 }
 
+#ifdef CONFIG_CONSOLE_FLUSH_SUPPORT
+void fflush(int file)
+{
+	if (file < MAX_FILES)
+		console_flush(file);
+}
+#endif
+
 int fprintf(int file, const char *fmt, ...)
 {
 	va_list args;
@@ -740,6 +770,40 @@ void puts(const char *s)
 	}
 }
 
+#ifdef CONFIG_CONSOLE_FLUSH_SUPPORT
+void flush(void)
+{
+	if (!gd)
+		return;
+
+	/* sandbox can send characters to stdout before it has a console */
+	if (IS_ENABLED(CONFIG_SANDBOX) && !(gd->flags & GD_FLG_SERIAL_READY)) {
+		os_flush();
+		return;
+	}
+
+	if (IS_ENABLED(CONFIG_DEBUG_UART) && !(gd->flags & GD_FLG_SERIAL_READY))
+		return;
+
+	if (IS_ENABLED(CONFIG_SILENT_CONSOLE) && (gd->flags & GD_FLG_SILENT))
+		return;
+
+	if (IS_ENABLED(CONFIG_DISABLE_CONSOLE) && (gd->flags & GD_FLG_DISABLE_CONSOLE))
+		return;
+
+	if (!gd->have_console)
+		return;
+
+	if (gd->flags & GD_FLG_DEVINIT) {
+		/* Send to the standard output */
+		fflush(stdout);
+	} else {
+		/* Send directly to the handler */
+		serial_flush();
+	}
+}
+#endif
+
 #ifdef CONFIG_CONSOLE_RECORD
 int console_record_init(void)
 {
diff --git a/common/stdio.c b/common/stdio.c
index 92161a0df8..13083842cb 100644
--- a/common/stdio.c
+++ b/common/stdio.c
@@ -87,6 +87,13 @@ static void stdio_serial_puts(struct stdio_dev *dev, const char *s)
 	serial_puts(s);
 }
 
+#ifdef CONFIG_CONSOLE_FLUSH_SUPPORT
+static void stdio_serial_flush(struct stdio_dev *dev)
+{
+	serial_flush();
+}
+#endif
+
 static int stdio_serial_getc(struct stdio_dev *dev)
 {
 	return serial_getc();
@@ -112,6 +119,7 @@ static void drv_system_init (void)
 	dev.flags = DEV_FLAGS_OUTPUT | DEV_FLAGS_INPUT;
 	dev.putc = stdio_serial_putc;
 	dev.puts = stdio_serial_puts;
+	STDIO_DEV_ASSIGN_FLUSH(&dev, stdio_serial_flush);
 	dev.getc = stdio_serial_getc;
 	dev.tstc = stdio_serial_tstc;
 	stdio_register (&dev);
diff --git a/drivers/serial/serial-uclass.c b/drivers/serial/serial-uclass.c
index 0d43e9b625..da3e1eb3ab 100644
--- a/drivers/serial/serial-uclass.c
+++ b/drivers/serial/serial-uclass.c
@@ -238,6 +238,18 @@ static void _serial_puts(struct udevice *dev, const char *str)
 	} while (*str);
 }
 
+#ifdef CONFIG_CONSOLE_FLUSH_SUPPORT
+static void _serial_flush(struct udevice *dev)
+{
+	struct dm_serial_ops *ops = serial_get_ops(dev);
+
+	if (!ops->pending)
+		return;
+	while (ops->pending(dev, false) > 0)
+		;
+}
+#endif
+
 static int __serial_getc(struct udevice *dev)
 {
 	struct dm_serial_ops *ops = serial_get_ops(dev);
@@ -315,6 +327,16 @@ void serial_puts(const char *str)
 		_serial_puts(gd->cur_serial_dev, str);
 }
 
+#ifdef CONFIG_CONSOLE_FLUSH_SUPPORT
+void serial_flush(void)
+{
+	if (!gd->cur_serial_dev)
+		return;
+
+	_serial_flush(gd->cur_serial_dev);
+}
+#endif
+
 int serial_getc(void)
 {
 	if (!gd->cur_serial_dev)
@@ -398,6 +420,13 @@ static void serial_stub_puts(struct stdio_dev *sdev, const char *str)
 	_serial_puts(sdev->priv, str);
 }
 
+#ifdef CONFIG_CONSOLE_FLUSH_SUPPORT
+static void serial_stub_flush(struct stdio_dev *sdev)
+{
+	_serial_flush(sdev->priv);
+}
+#endif
+
 static int serial_stub_getc(struct stdio_dev *sdev)
 {
 	return _serial_getc(sdev->priv);
@@ -447,6 +476,7 @@ static int on_baudrate(const char *name, const char *value, enum env_op op,
 			printf("## Switch baudrate to %d bps and press ENTER ...\n",
 			       baudrate);
 			udelay(50000);
+			flush();
 		}
 
 		gd->baudrate = baudrate;
@@ -520,6 +550,7 @@ static int serial_post_probe(struct udevice *dev)
 	sdev.priv = dev;
 	sdev.putc = serial_stub_putc;
 	sdev.puts = serial_stub_puts;
+	STDIO_DEV_ASSIGN_FLUSH(&sdev, serial_stub_flush);
 	sdev.getc = serial_stub_getc;
 	sdev.tstc = serial_stub_tstc;
 
diff --git a/include/_exports.h b/include/_exports.h
index f6df8b6107..1af946fac3 100644
--- a/include/_exports.h
+++ b/include/_exports.h
@@ -12,6 +12,9 @@
 	EXPORT_FUNC(tstc, int, tstc, void)
 	EXPORT_FUNC(putc, void, putc, const char)
 	EXPORT_FUNC(puts, void, puts, const char *)
+#ifdef CONFIG_CONSOLE_FLUSH_SUPPORT
+	EXPORT_FUNC(flush, void, flush, void)
+#endif
 	EXPORT_FUNC(printf, int, printf, const char*, ...)
 #if (defined(CONFIG_X86) && !defined(CONFIG_X86_64)) || defined(CONFIG_PPC)
 	EXPORT_FUNC(irq_install_handler, void, install_hdlr,
diff --git a/include/os.h b/include/os.h
index 148178787b..5b353ae9d9 100644
--- a/include/os.h
+++ b/include/os.h
@@ -295,6 +295,14 @@ void os_putc(int ch);
  */
 void os_puts(const char *str);
 
+/**
+ * os_flush() - flush controlling OS terminal
+ *
+ * This bypasses the U-Boot console support and flushes directly the OS
+ * stdout file descriptor.
+ */
+void os_flush(void);
+
 /**
  * os_write_ram_buf() - write the sandbox RAM buffer to a existing file
  *
diff --git a/include/serial.h b/include/serial.h
index 8c2e7adbc3..fe01bcfadb 100644
--- a/include/serial.h
+++ b/include/serial.h
@@ -362,6 +362,11 @@ void serial_setbrg(void);
 void serial_putc(const char ch);
 void serial_putc_raw(const char ch);
 void serial_puts(const char *str);
+#if defined(CONFIG_CONSOLE_FLUSH_SUPPORT) && CONFIG_IS_ENABLED(DM_SERIAL)
+void serial_flush(void);
+#else
+static inline void serial_flush(void) {}
+#endif
 int serial_getc(void);
 int serial_tstc(void);
 
diff --git a/include/stdio.h b/include/stdio.h
index 1939a48f0f..3241e2d493 100644
--- a/include/stdio.h
+++ b/include/stdio.h
@@ -15,6 +15,11 @@ int tstc(void);
 		defined(CONFIG_SPL_SERIAL))
 void putc(const char c);
 void puts(const char *s);
+#ifdef CONFIG_CONSOLE_FLUSH_SUPPORT
+void flush(void);
+#else
+static inline void flush(void) {}
+#endif
 int __printf(1, 2) printf(const char *fmt, ...);
 int vprintf(const char *fmt, va_list args);
 #else
@@ -26,6 +31,10 @@ static inline void puts(const char *s)
 {
 }
 
+static inline void flush(void)
+{
+}
+
 static inline int __printf(1, 2) printf(const char *fmt, ...)
 {
 	return 0;
@@ -48,11 +57,17 @@ static inline int vprintf(const char *fmt, va_list args)
 /* stderr */
 #define eputc(c)		fputc(stderr, c)
 #define eputs(s)		fputs(stderr, s)
+#define eflush()		fflush(stderr)
 #define eprintf(fmt, args...)	fprintf(stderr, fmt, ##args)
 
 int __printf(2, 3) fprintf(int file, const char *fmt, ...);
 void fputs(int file, const char *s);
 void fputc(int file, const char c);
+#ifdef CONFIG_CONSOLE_FLUSH_SUPPORT
+void fflush(int file);
+#else
+static inline void fflush(int file) {}
+#endif
 int ftstc(int file);
 int fgetc(int file);
 
diff --git a/include/stdio_dev.h b/include/stdio_dev.h
index 270fa2729f..3105928970 100644
--- a/include/stdio_dev.h
+++ b/include/stdio_dev.h
@@ -37,6 +37,13 @@ struct stdio_dev {
 	void (*putc)(struct stdio_dev *dev, const char c);
 	/* To put a string (accelerator) */
 	void (*puts)(struct stdio_dev *dev, const char *s);
+#ifdef CONFIG_CONSOLE_FLUSH_SUPPORT
+	/* To flush output queue */
+	void (*flush)(struct stdio_dev *dev);
+#define STDIO_DEV_ASSIGN_FLUSH(dev, flush_func) ((dev)->flush = (flush_func))
+#else
+#define STDIO_DEV_ASSIGN_FLUSH(dev, flush_func)
+#endif
 
 /* INPUT functions */
 
diff --git a/lib/efi_selftest/efi_selftest_loadimage.c b/lib/efi_selftest/efi_selftest_loadimage.c
index d4c76f557c..24548f1ae6 100644
--- a/lib/efi_selftest/efi_selftest_loadimage.c
+++ b/lib/efi_selftest/efi_selftest_loadimage.c
@@ -142,38 +142,39 @@ static struct efi_file_system_info *file_system_info =
 	&priv_file_system_info.info;
 
 /* Forward definitions of file and file system functions */
-static efi_status_t EFIAPI open_volume
+static efi_status_t EFIAPI efi_st_open_volume
 	(struct efi_simple_file_system_protocol *this,
 	 struct efi_file_handle **root);
 
-static efi_status_t EFIAPI open
+static efi_status_t EFIAPI efi_st_open
 	(struct efi_file_handle *this,
 	 struct efi_file_handle **new_handle,
 	 u16 *file_name, u64 open_mode, u64 attributes);
 
-static efi_status_t EFIAPI close(struct efi_file_handle *this);
+static efi_status_t EFIAPI efi_st_close(struct efi_file_handle *this);
 
-static efi_status_t EFIAPI delete(struct efi_file_handle *this);
+static efi_status_t EFIAPI efi_st_delete(struct efi_file_handle *this);
 
-static efi_status_t EFIAPI read
+static efi_status_t EFIAPI efi_st_read
 	(struct efi_file_handle *this, efi_uintn_t *buffer_size, void *buffer);
 
-static efi_status_t EFIAPI write
+static efi_status_t EFIAPI efi_st_write
 	(struct efi_file_handle *this, efi_uintn_t *buffer_size, void *buffer);
 
-static efi_status_t EFIAPI getpos(struct efi_file_handle *this, u64 *pos);
+static efi_status_t EFIAPI efi_st_getpos(struct efi_file_handle *this,
+					 u64 *pos);
 
-static efi_status_t EFIAPI setpos(struct efi_file_handle *this, u64 pos);
+static efi_status_t EFIAPI efi_st_setpos(struct efi_file_handle *this, u64 pos);
 
-static efi_status_t EFIAPI getinfo
+static efi_status_t EFIAPI efi_st_getinfo
 	(struct efi_file_handle *this, const efi_guid_t *info_type,
 	 efi_uintn_t *buffer_size, void *buffer);
 
-static efi_status_t EFIAPI setinfo
+static efi_status_t EFIAPI efi_st_setinfo
 	(struct efi_file_handle *this, const efi_guid_t *info_type,
 	 efi_uintn_t buffer_size, void *buffer);
 
-static efi_status_t EFIAPI flush(struct efi_file_handle *this);
+static efi_status_t EFIAPI efi_st_flush(struct efi_file_handle *this);
 
 /* Internal information about status of file system */
 static struct {
@@ -190,40 +191,40 @@ static struct {
 /* EFI_FILE_PROTOCOL for file */
 static struct efi_file_handle file = {
 	.rev = 0x00010000,
-	.open = open,
-	.close = close,
-	.delete = delete,
-	.read = read,
-	.write = write,
-	.getpos = getpos,
-	.setpos = setpos,
-	.getinfo = getinfo,
-	.setinfo = setinfo,
-	.flush = flush,
+	.open = efi_st_open,
+	.close = efi_st_close,
+	.delete = efi_st_delete,
+	.read = efi_st_read,
+	.write = efi_st_write,
+	.getpos = efi_st_getpos,
+	.setpos = efi_st_setpos,
+	.getinfo = efi_st_getinfo,
+	.setinfo = efi_st_setinfo,
+	.flush = efi_st_flush,
 };
 
 /* EFI_FILE_PROTOCOL for root directory */
 static struct efi_file_handle volume = {
 	.rev = 0x00010000,
-	.open = open,
-	.close = close,
-	.delete = delete,
-	.read = read,
-	.write = write,
-	.getpos = getpos,
-	.setpos = setpos,
-	.getinfo = getinfo,
-	.setinfo = setinfo,
-	.flush = flush,
+	.open = efi_st_open,
+	.close = efi_st_close,
+	.delete = efi_st_delete,
+	.read = efi_st_read,
+	.write = efi_st_write,
+	.getpos = efi_st_getpos,
+	.setpos = efi_st_setpos,
+	.getinfo = efi_st_getinfo,
+	.setinfo = efi_st_setinfo,
+	.flush = efi_st_flush,
 };
 
 /* EFI_SIMPLE_FILE_SYSTEM_PROTOCOL of the block device */
 struct efi_simple_file_system_protocol file_system = {
 	.rev = 0x00010000,
-	.open_volume = open_volume,
+	.open_volume = efi_st_open_volume,
 };
 
-static efi_status_t EFIAPI open_volume
+static efi_status_t EFIAPI efi_st_open_volume
 	(struct efi_simple_file_system_protocol *this,
 	 struct efi_file_handle **root)
 {
@@ -236,7 +237,7 @@ static efi_status_t EFIAPI open_volume
 	return EFI_SUCCESS;
 }
 
-static efi_status_t EFIAPI open
+static efi_status_t EFIAPI efi_st_open
 	(struct efi_file_handle *this,
 	 struct efi_file_handle **new_handle,
 	 u16 *file_name, u64 open_mode, u64 attributes)
@@ -251,7 +252,7 @@ static efi_status_t EFIAPI open
 	return EFI_SUCCESS;
 }
 
-static efi_status_t EFIAPI close(struct efi_file_handle *this)
+static efi_status_t EFIAPI efi_st_close(struct efi_file_handle *this)
 {
 	if (this == &file)
 		priv.file_open_count--;
@@ -263,7 +264,7 @@ static efi_status_t EFIAPI close(struct efi_file_handle *this)
 	return EFI_SUCCESS;
 }
 
-static efi_status_t EFIAPI delete(struct efi_file_handle *this)
+static efi_status_t EFIAPI efi_st_delete(struct efi_file_handle *this)
 {
 	if (this != &file)
 		return EFI_INVALID_PARAMETER;
@@ -271,7 +272,7 @@ static efi_status_t EFIAPI delete(struct efi_file_handle *this)
 	return EFI_UNSUPPORTED;
 }
 
-static efi_status_t EFIAPI read
+static efi_status_t EFIAPI efi_st_read
 	(struct efi_file_handle *this, efi_uintn_t *buffer_size, void *buffer)
 {
 	if (this != &file)
@@ -288,7 +289,7 @@ static efi_status_t EFIAPI read
 	return EFI_SUCCESS;
 }
 
-static efi_status_t EFIAPI write
+static efi_status_t EFIAPI efi_st_write
 	(struct efi_file_handle *this, efi_uintn_t *buffer_size, void *buffer)
 {
 	if (this != &file)
@@ -297,7 +298,7 @@ static efi_status_t EFIAPI write
 	return EFI_UNSUPPORTED;
 }
 
-static efi_status_t EFIAPI getpos(struct efi_file_handle *this, u64 *pos)
+static efi_status_t EFIAPI efi_st_getpos(struct efi_file_handle *this, u64 *pos)
 {
 	if (this != &file)
 		return EFI_INVALID_PARAMETER;
@@ -307,7 +308,7 @@ static efi_status_t EFIAPI getpos(struct efi_file_handle *this, u64 *pos)
 	return EFI_SUCCESS;
 }
 
-static efi_status_t EFIAPI setpos(struct efi_file_handle *this, u64 pos)
+static efi_status_t EFIAPI efi_st_setpos(struct efi_file_handle *this, u64 pos)
 {
 	if (this != &file)
 		return EFI_INVALID_PARAMETER;
@@ -317,7 +318,7 @@ static efi_status_t EFIAPI setpos(struct efi_file_handle *this, u64 pos)
 	return EFI_SUCCESS;
 }
 
-static efi_status_t EFIAPI getinfo
+static efi_status_t EFIAPI efi_st_getinfo
 	(struct efi_file_handle *this, const efi_guid_t *info_type,
 	 efi_uintn_t *buffer_size, void *buffer)
 {
@@ -348,7 +349,7 @@ static efi_status_t EFIAPI getinfo
 	return EFI_SUCCESS;
 }
 
-static efi_status_t EFIAPI setinfo
+static efi_status_t EFIAPI efi_st_setinfo
 	(struct efi_file_handle *this, const efi_guid_t *info_type,
 	 efi_uintn_t buffer_size, void *buffer)
 {
@@ -358,7 +359,7 @@ static efi_status_t EFIAPI setinfo
 	return EFI_UNSUPPORTED;
 }
 
-static efi_status_t EFIAPI flush(struct efi_file_handle *this)
+static efi_status_t EFIAPI efi_st_flush(struct efi_file_handle *this)
 {
 	if (this != &file)
 		return EFI_INVALID_PARAMETER;