Merge branch 'master' of git://git.denx.de/u-boot

3 files changed, 61 insertions, 31 deletions

diff --git a/drivers/serial/Kconfig b/drivers/serial/Kconfig
index 5611fac0dc..4829284216 100644
--- a/drivers/serial/Kconfig
+++ b/drivers/serial/Kconfig
@@ -76,6 +76,26 @@ config DEBUG_UART_SHIFT
 	  value. Use this value to specify the shift to use, where 0=byte
 	  registers, 2=32-bit word registers, etc.
 
+config SANDBOX_SERIAL
+	bool "Sandbox UART support"
+	depends on SANDBOX && DM
+	help
+	  Select this to enable a seral UART for sandbox. This is required to
+	  operate correctly, otherwise you will see no serial output from
+	  sandbox. The emulated UART will display to the console and console
+	  input will be fed into the UART. This allows you to interact with
+	  U-Boot.
+
+	  The operation of the console is controlled by the -t command-line
+	  flag. In raw mode, U-Boot sees all characters from the terminal
+	  before they are processed, including Ctrl-C. In cooked mode, Ctrl-C
+	  is processed by the terminal, and terminates U-Boot. Valid options
+	  are:
+
+	     -t raw-with-sigs	Raw mode, Ctrl-C will terminate U-Boot
+	     -t raw		Raw mode, Ctrl-C is processed by U-Boot
+	     -t cooked		Cooked mode, Ctrl-C terminates
+
 config UNIPHIER_SERIAL
 	bool "Support for UniPhier on-chip UART"
 	depends on ARCH_UNIPHIER && DM_SERIAL
diff --git a/drivers/serial/ns16550.c b/drivers/serial/ns16550.c
index 3d376d7580..9b044a37da 100644
--- a/drivers/serial/ns16550.c
+++ b/drivers/serial/ns16550.c
@@ -65,6 +65,8 @@ static inline void serial_out_shift(void *addr, int shift, int value)
 	out_le32(addr, value);
 #elif defined(CONFIG_SYS_NS16550_MEM32) && defined(CONFIG_SYS_BIG_ENDIAN)
 	out_be32(addr, value);
+#elif defined(CONFIG_SYS_NS16550_MEM32)
+	writel(value, addr);
 #elif defined(CONFIG_SYS_BIG_ENDIAN)
 	writeb(value, addr + (1 << shift) - 1);
 #else
@@ -80,6 +82,8 @@ static inline int serial_in_shift(void *addr, int shift)
 	return in_le32(addr);
 #elif defined(CONFIG_SYS_NS16550_MEM32) && defined(CONFIG_SYS_BIG_ENDIAN)
 	return in_be32(addr);
+#elif defined(CONFIG_SYS_NS16550_MEM32)
+	return readl(addr);
 #elif defined(CONFIG_SYS_BIG_ENDIAN)
 	return readb(addr + (1 << shift) - 1);
 #else
diff --git a/drivers/serial/serial-uclass.c b/drivers/serial/serial-uclass.c
index b8c2f48228..815fec3264 100644
--- a/drivers/serial/serial-uclass.c
+++ b/drivers/serial/serial-uclass.c
@@ -30,49 +30,55 @@ static const unsigned long baudrate_table[] = CONFIG_SYS_BAUDRATE_TABLE;
 static void serial_find_console_or_panic(void)
 {
 	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 (OF_CONTROL && gd->fdt_blob) {
+		/* 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)) {
+				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 || !OF_CONTROL || !gd->fdt_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_str("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;
+	}
+
+	panic_str("No serial driver found");
 }
 
 /* Called prior to relocation */