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m68knommu: make 54xx 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 54xx 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>
This commit is contained in:
Greg Ungerer 2011-12-24 00:46:37 +10:00
parent 69d23b610a
commit bbbeeaf2f7
2 changed files with 18 additions and 14 deletions
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16
arch/m68k/include/asm/m54xxsim.h
View File

@ -31,16 +31,20 @@
/*
* UART module.
*/
#define MCFUART_BASE1 0x8600 /* Base address of UART1 */
#define MCFUART_BASE2 0x8700 /* Base address of UART2 */
#define MCFUART_BASE3 0x8800 /* Base address of UART3 */
#define MCFUART_BASE4 0x8900 /* Base address of UART4 */
#define MCFUART_BASE0 (MCF_MBAR + 0x8600) /* Base address UART0 */
#define MCFUART_BASE1 (MCF_MBAR + 0x8700) /* Base address UART1 */
#define MCFUART_BASE2 (MCF_MBAR + 0x8800) /* Base address UART2 */
#define MCFUART_BASE3 (MCF_MBAR + 0x8900) /* Base address UART3 */
/*
* Define system peripheral IRQ usage.
*/
#define MCF_IRQ_TIMER (64 + 54) /* Slice Timer 0 */
#define MCF_IRQ_PROFILER (64 + 53) /* Slice Timer 1 */
#define MCF_IRQ_TIMER (MCFINT_VECBASE + 54) /* Slice Timer 0 */
#define MCF_IRQ_PROFILER (MCFINT_VECBASE + 53) /* Slice Timer 1 */
#define MCF_IRQ_UART0 (MCFINT_VECBASE + 35)
#define MCF_IRQ_UART1 (MCFINT_VECBASE + 34)
#define MCF_IRQ_UART2 (MCFINT_VECBASE + 33)
#define MCF_IRQ_UART3 (MCFINT_VECBASE + 32)
/*
* Generic GPIO support

16
arch/m68k/platform/54xx/config.c
View File

@ -29,20 +29,20 @@
static struct mcf_platform_uart m54xx_uart_platform[] = {
{
.mapbase = MCF_MBAR + MCFUART_BASE1,
.irq = 64 + 35,
.mapbase = MCFUART_BASE0,
.irq = MCF_IRQ_UART0,
},
{
.mapbase = MCF_MBAR + MCFUART_BASE2,
.irq = 64 + 34,
.mapbase = MCFUART_BASE1,
.irq = MCF_IRQ_UART1,
},
{
.mapbase = MCF_MBAR + MCFUART_BASE3,
.irq = 64 + 33,
.mapbase = MCFUART_BASE2,
.irq = MCF_IRQ_UART2,
},
{
.mapbase = MCF_MBAR + MCFUART_BASE4,
.irq = 64 + 32,
.mapbase = MCFUART_BASE3,
.irq = MCF_IRQ_UART3,
},
};