m68knommu: make 520x UART platform addressing consistent

If we make all UART addressing consistent across all ColdFire family members
then we will be able to remove the duplicated plaform data and use a single
setup for all.

So modify the ColdFire 520x UART addressing so that:

. UARTs are numbered from 0 up
. use a common name for IRQs used
Signed-off-by: Greg Ungerer <gerg@uclinux.org>

arch/m68k/include/asm/m520xsim.h

@@ -50,6 +50,10 @@
 #define MCFINT_QSPI         31          /* Interrupt number for QSPI */
 #define MCFINT_PIT1         4           /* Interrupt number for PIT1 (PIT0 in processor) */
 
+#define MCF_IRQ_UART0	    (MCFINT_VECBASE + MCFINT_UART0)
+#define MCF_IRQ_UART1	    (MCFINT_VECBASE + MCFINT_UART1)
+#define MCF_IRQ_UART2	    (MCFINT_VECBASE + MCFINT_UART2)
+
 /*
  *  SDRAM configuration registers.
  */
@@ -144,9 +148,9 @@
 /*
  *  UART module.
  */
-#define MCFUART_BASE1		0xFC060000	/* Base address of UART1 */
-#define MCFUART_BASE2		0xFC064000	/* Base address of UART2 */
-#define MCFUART_BASE3		0xFC068000	/* Base address of UART2 */
+#define MCFUART_BASE0		0xFC060000	/* Base address of UART0 */
+#define MCFUART_BASE1		0xFC064000	/* Base address of UART1 */
+#define MCFUART_BASE2		0xFC068000	/* Base address of UART2 */
 
 /*
  *  FEC module.

arch/m68k/platform/520x/config.c

@@ -27,16 +27,16 @@
 
 static struct mcf_platform_uart m520x_uart_platform[] = {
 	{
-		.mapbase	= MCFUART_BASE1,
-		.irq		= MCFINT_VECBASE + MCFINT_UART0,
+		.mapbase	= MCFUART_BASE0,
+		.irq		= MCF_IRQ_UART0,
 	},
 	{
-		.mapbase 	= MCFUART_BASE2,
-		.irq		= MCFINT_VECBASE + MCFINT_UART1,
+		.mapbase 	= MCFUART_BASE1,
+		.irq		= MCF_IRQ_UART1,
 	},
 	{
-		.mapbase 	= MCFUART_BASE3,
-		.irq		= MCFINT_VECBASE + MCFINT_UART2,
+		.mapbase 	= MCFUART_BASE2,
+		.irq		= MCF_IRQ_UART2,
 	},
 	{ },
 };