Add port for the lpc2292sodimm evaluation board from EmbeddedArtists

1 files changed, 77 insertions, 1 deletions

diff --git a/cpu/arm720t/serial.c b/cpu/arm720t/serial.c
index 054bab9..15c54af 100644
--- a/cpu/arm720t/serial.c
+++ b/cpu/arm720t/serial.c
@@ -123,4 +123,80 @@ serial_puts (const char *s)
 	}
 }
 
-#endif /* defined(CONFIG_IMPA7) || defined(CONFIG_EP7312) */
+#elif defined(CONFIG_LPC2292)
+
+#include <asm/arch/hardware.h>
+
+void serial_setbrg (void)
+{
+	DECLARE_GLOBAL_DATA_PTR;
+
+	unsigned short divisor = 0;
+
+	switch (gd->baudrate) {
+	case   1200:	divisor = 3072;	break;
+	case   9600:	divisor =  384;	break;
+	case  19200:	divisor =  192;	break;
+	case  38400:	divisor =   96;	break;
+	case  57600:	divisor =   64;	break;
+	case 115200:	divisor =   32;	break;
+	default:	hang ();	break;
+	}
+
+	/* init serial UART0 */
+	PUT8(U0LCR, 0);
+	PUT8(U0IER, 0);
+	PUT8(U0LCR, 0x80);	/* DLAB=1 */
+	PUT8(U0DLL, (unsigned char)(divisor & 0x00FF));
+	PUT8(U0DLM, (unsigned char)(divisor >> 8));
+	PUT8(U0LCR, 0x03);	/* 8N1, DLAB=0  */
+	PUT8(U0FCR, 1);		/* Enable RX and TX FIFOs */
+}
+
+int serial_init (void)
+{
+	unsigned long pinsel0;
+
+	serial_setbrg ();
+
+	pinsel0 = GET32(PINSEL0);
+	pinsel0 &= ~(0x00000003);
+	pinsel0 |= 5;
+	PUT32(PINSEL0, pinsel0);
+
+	return (0);
+}
+
+void serial_putc (const char c)
+{
+	if (c == '\n')
+	{
+		while((GET8(U0LSR) & (1<<5)) == 0); /* Wait for empty U0THR */
+		PUT8(U0THR, '\r');
+	}
+
+	while((GET8(U0LSR) & (1<<5)) == 0); /* Wait for empty U0THR */
+	PUT8(U0THR, c);
+}
+
+int serial_getc (void)
+{
+	while((GET8(U0LSR) & 1) == 0);
+	return GET8(U0RBR);
+}
+
+void
+serial_puts (const char *s)
+{
+	while (*s) {
+		serial_putc (*s++);
+	}
+}
+
+/* Test if there is a byte to read */
+int serial_tstc (void)
+{
+	return (GET8(U0LSR) & 1);
+}
+
+#endif