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authorGreg Ungerer <gerg@uclinux.org>2011-12-24 00:28:18 +1000
committerGreg Ungerer <gerg@uclinux.org>2012-03-05 09:43:05 +1000
commite8f69e545e51b9f2870d64082db533557b8d0d09 (patch)
tree00a64e79bbcdcb3dec7451439a6a69d58c61a30c
parent13682af34914b553505cce3e417f76b35a0f8d01 (diff)
m68knommu: make 5249 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 5249 UART addressing so that: . UARTs are numbered from 0 up . base addresses are absolute (not relative to MBAR peripheral register) . use a common name for IRQs used Signed-off-by: Greg Ungerer <gerg@uclinux.org>
-rw-r--r--arch/m68k/include/asm/m5249sim.h7
-rw-r--r--arch/m68k/platform/5249/config.c12
2 files changed, 11 insertions, 8 deletions
diff --git a/arch/m68k/include/asm/m5249sim.h b/arch/m68k/include/asm/m5249sim.h
index 805714ca8d7..3e31508619c 100644
--- a/arch/m68k/include/asm/m5249sim.h
+++ b/arch/m68k/include/asm/m5249sim.h
@@ -76,8 +76,8 @@
/*
* UART module.
*/
-#define MCFUART_BASE1 0x1c0 /* Base address of UART1 */
-#define MCFUART_BASE2 0x200 /* Base address of UART2 */
+#define MCFUART_BASE0 (MCF_MBAR + 0x1c0) /* Base address UART0 */
+#define MCFUART_BASE1 (MCF_MBAR + 0x200) /* Base address UART1 */
/*
* DMA unit base addresses.
@@ -108,6 +108,9 @@
#define MCF_IRQ_TIMER 30 /* Timer0, Level 6 */
#define MCF_IRQ_PROFILER 31 /* Timer1, Level 7 */
+#define MCF_IRQ_UART0 73 /* UART0 */
+#define MCF_IRQ_UART1 74 /* UART1 */
+
/*
* General purpose IO registers (in MBAR2).
*/
diff --git a/arch/m68k/platform/5249/config.c b/arch/m68k/platform/5249/config.c
index 50e2d8f2325..b74092a20d2 100644
--- a/arch/m68k/platform/5249/config.c
+++ b/arch/m68k/platform/5249/config.c
@@ -24,12 +24,12 @@
static struct mcf_platform_uart m5249_uart_platform[] = {
{
- .mapbase = MCF_MBAR + MCFUART_BASE1,
- .irq = 73,
+ .mapbase = MCFUART_BASE0,
+ .irq = MCF_IRQ_UART0,
},
{
- .mapbase = MCF_MBAR + MCFUART_BASE2,
- .irq = 74,
+ .mapbase = MCFUART_BASE1,
+ .irq = MCF_IRQ_UART1,
},
{ },
};
@@ -238,11 +238,11 @@ static void __init m5249_uart_init_line(int line, int irq)
{
if (line == 0) {
writeb(MCFSIM_ICR_LEVEL6 | MCFSIM_ICR_PRI1, MCF_MBAR + MCFSIM_UART1ICR);
- writeb(irq, MCF_MBAR + MCFUART_BASE1 + MCFUART_UIVR);
+ writeb(irq, MCFUART_BASE0 + MCFUART_UIVR);
mcf_mapirq2imr(irq, MCFINTC_UART0);
} else if (line == 1) {
writeb(MCFSIM_ICR_LEVEL6 | MCFSIM_ICR_PRI2, MCF_MBAR + MCFSIM_UART2ICR);
- writeb(irq, MCF_MBAR + MCFUART_BASE2 + MCFUART_UIVR);
+ writeb(irq, MCFUART_BASE1 + MCFUART_UIVR);
mcf_mapirq2imr(irq, MCFINTC_UART1);
}
}