Make the serial driver framework work with CONFIG_SERIAL_MULTI enabled

CHANGELOG

@@ -2,6 +2,9 @@
 Changes since U-Boot 1.1.4:
 ======================================================================
 
+* Make the serial driver framework work with CONFIG_SERIAL_MULTI
+  enabled
+
 * PCIe endpoint support for AMCC Yucca 440SPe board
   Patch by Tirumala R Marri, 26 Aug 2006
 

common/serial.c

@@ -42,7 +42,19 @@ struct serial_device *default_serial_console (void)
 	return &serial_scc_device;
 #elif defined(CONFIG_405GP) || defined(CONFIG_405CR) || defined(CONFIG_440) \
    || defined(CONFIG_405EP) || defined(CONFIG_MPC5xxx)
-#if defined(CONFIG_UART1_CONSOLE)
+#if defined(CONFIG_CONS_INDEX) && defined(CFG_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;
@@ -84,6 +96,20 @@ void serial_initialize (void)
 	serial_register(&serial1_device);
 #endif
 
+#if defined(CFG_NS16550_SERIAL)
+#if defined(CFG_NS16550_COM1)
+	serial_register(&eserial1_device);
+#endif
+#if defined(CFG_NS16550_COM2)
+	serial_register(&eserial2_device);
+#endif
+#if defined(CFG_NS16550_COM3)
+	serial_register(&eserial3_device);
+#endif
+#if defined(CFG_NS16550_COM4)
+	serial_register(&eserial4_device);
+#endif
+#endif /* CFG_NS16550_SERIAL */
 	serial_assign (default_serial_console ()->name);
 }
 

drivers/ns9750_serial.c

@@ -35,6 +35,10 @@
 
 DECLARE_GLOBAL_DATA_PTR;
 
+#if !defined(CONFIG_CONS_INDEX)
+#error "No console index specified."
+#endif
+
 #define CONSOLE CONFIG_CONS_INDEX
 
 static unsigned int calcBitrateRegister( void );

drivers/serial.c

@@ -30,10 +30,20 @@
 #include <ns87308.h>
 #endif
 
+#if defined (CONFIG_SERIAL_MULTI)
+#include <serial.h>
+#endif
+
 DECLARE_GLOBAL_DATA_PTR;
 
 #if !defined(CONFIG_CONS_INDEX)
+#if defined (CONFIG_SERIAL_MULTI)
+/*   with CONFIG_SERIAL_MULTI we might have no console
+ *  on these devices 
+ */
+#else
 #error	"No console index specified."
+#endif /* CONFIG_SERIAL_MULTI */
 #elif (CONFIG_CONS_INDEX < 1) || (CONFIG_CONS_INDEX > 4)
 #error	"Invalid console index value."
 #endif
@@ -75,7 +85,42 @@ static NS16550_t serial_ports[4] = {
 };
 
 #define PORT	serial_ports[port-1]
+#if defined(CONFIG_CONS_INDEX)
 #define CONSOLE	(serial_ports[CONFIG_CONS_INDEX-1])
+#endif
+
+#if defined(CONFIG_SERIAL_MULTI)
+
+/* Multi serial device functions */
+#define DECLARE_ESERIAL_FUNCTIONS(port) \
+    int  eserial##port##_init (void) {\
+	int clock_divisor; \
+	clock_divisor = calc_divisor(serial_ports[port-1]); \
+	NS16550_init(serial_ports[port-1], clock_divisor); \
+	return(0);}\
+    void eserial##port##_setbrg (void) {\
+	serial_setbrg_dev(port);}\
+    int  eserial##port##_getc (void) {\
+	return serial_getc_dev(port);}\
+    int  eserial##port##_tstc (void) {\
+	return serial_tstc_dev(port);}\
+    void eserial##port##_putc (const char c) {\
+	serial_putc_dev(port, c);}\
+    void eserial##port##_puts (const char *s) {\
+	serial_puts_dev(port, s);}
+
+/* Serial device descriptor */
+#define INIT_ESERIAL_STRUCTURE(port,name,bus) {\
+	name,\
+	bus,\
+	eserial##port##_init,\
+	eserial##port##_setbrg,\
+	eserial##port##_getc,\
+	eserial##port##_tstc,\
+	eserial##port##_putc,\
+	eserial##port##_puts, }
+
+#endif /* CONFIG_SERIAL_MULTI */
 
 static int calc_divisor (NS16550_t port)
 {
@@ -103,6 +148,7 @@ static int calc_divisor (NS16550_t port)
 
 }
 
+#if !defined(CONFIG_SERIAL_MULTI)
 int serial_init (void)
 {
 	int clock_divisor;
@@ -130,6 +176,7 @@ int serial_init (void)
 
 	return (0);
 }
+#endif
 
 void
 _serial_putc(const char c,const int port)
@@ -176,40 +223,104 @@ _serial_setbrg (const int port)
 	NS16550_reinit(PORT, clock_divisor);
 }
 
+#if defined(CONFIG_SERIAL_MULTI)
+static inline void
+serial_putc_dev(unsigned int dev_index,const char c)
+{
+	_serial_putc(c,dev_index);
+}
+#else
 void
 serial_putc(const char c)
 {
 	_serial_putc(c,CONFIG_CONS_INDEX);
 }
+#endif
 
+#if defined(CONFIG_SERIAL_MULTI)
+static inline void 
+serial_putc_raw_dev(unsigned int dev_index,const char c)
+{
+	_serial_putc_raw(c,dev_index);
+}
+#else
 void
 serial_putc_raw(const char c)
 {
 	_serial_putc_raw(c,CONFIG_CONS_INDEX);
 }
+#endif
 
+#if defined(CONFIG_SERIAL_MULTI)
+static inline void
+serial_puts_dev(unsigned int dev_index,const char *s)
+{
+	_serial_puts(s,dev_index);
+}
+#else
 void
 serial_puts(const char *s)
 {
 	_serial_puts(s,CONFIG_CONS_INDEX);
 }
+#endif
 
+#if defined(CONFIG_SERIAL_MULTI)
+static inline int
+serial_getc_dev(unsigned int dev_index)
+{
+	return _serial_getc(dev_index);
+}
+#else
 int
 serial_getc(void)
 {
 	return _serial_getc(CONFIG_CONS_INDEX);
 }
+#endif
 
+#if defined(CONFIG_SERIAL_MULTI)
+static inline int
+serial_tstc_dev(unsigned int dev_index)
+{
+	return _serial_tstc(dev_index);
+}
+#else
 int
 serial_tstc(void)
 {
 	return _serial_tstc(CONFIG_CONS_INDEX);
 }
+#endif
 
+#if defined(CONFIG_SERIAL_MULTI)
+static inline void
+serial_setbrg_dev(unsigned int dev_index)
+{
+	_serial_setbrg(dev_index);
+}
+#else
 void
 serial_setbrg(void)
 {
 	_serial_setbrg(CONFIG_CONS_INDEX);
 }
+#endif
+
+#if defined(CONFIG_SERIAL_MULTI)
+
+DECLARE_ESERIAL_FUNCTIONS(1);
+struct serial_device eserial1_device = 
+	INIT_ESERIAL_STRUCTURE(1,"eserial0","EUART1");
+DECLARE_ESERIAL_FUNCTIONS(2);
+struct serial_device eserial2_device =
+	INIT_ESERIAL_STRUCTURE(2,"eserial1","EUART2");
+DECLARE_ESERIAL_FUNCTIONS(3);
+struct serial_device eserial3_device =
+	INIT_ESERIAL_STRUCTURE(3,"eserial2","EUART3");
+DECLARE_ESERIAL_FUNCTIONS(4);
+struct serial_device eserial4_device =
+	INIT_ESERIAL_STRUCTURE(4,"eserial3","EUART4");
+#endif /* CONFIG_SERIAL_MULTI */
 
 #endif

include/configs/mcc200.h

@@ -72,12 +72,15 @@
  */
 #if !defined(CONFIG_PRS200)
 /* MCC200 configuration: */
-#undef CONFIG_PSC_CONSOLE
+#define CONFIG_SERIAL_MULTI	1
+#define CONFIG_PSC_CONSOLE	1	/* PSC1 may be COM */
+#define CONFIG_PSC_CONSOLE2	2	/* PSC2 is PSoC */
 #else
 /* PRS200 configuration: */
 #define CONFIG_PSC_CONSOLE	1	/* console is on PSC1		*/
 #endif
-#if defined(CONFIG_QUART_CONSOLE) && defined(CONFIG_PSC_CONSOLE)
+#if defined(CONFIG_QUART_CONSOLE) && defined(CONFIG_PSC_CONSOLE) && \
+	!defined(CONFIG_SERIAL_MULTI)
 #error "Select only one console device!"
 #endif
 #define CONFIG_BAUDRATE		115200

include/serial.h

@@ -26,6 +26,13 @@ extern struct serial_device * default_serial_console (void);
    || defined(CONFIG_405EP) || defined(CONFIG_MPC5xxx)
 extern struct serial_device serial0_device;
 extern struct serial_device serial1_device;
+#if defined(CFG_NS16550_SERIAL)
+extern struct serial_device eserial1_device;
+extern struct serial_device eserial2_device;
+extern struct serial_device eserial3_device;
+extern struct serial_device eserial4_device;
+#endif /* CFG_NS16550_SERIAL */
+
 #endif