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m68knommu: platform setup for 5206 ColdFire parts 

Switch to platform style configuration for 5206 ColdFire parts.
Initial support is for the UARTs. DMA support moved to common code
for all ColdFire parts.

Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Greg Ungerer 2008-02-01 17:34:04 +10:00 committed by Linus Torvalds
parent ae1b5f0d23
commit 9685c43e4e
1 changed files with 57 additions and 11 deletions
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68
arch/m68knommu/platform/5206/config.c
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@ -13,12 +13,11 @@
#include <linux/param.h>
#include <linux/init.h>
#include <linux/interrupt.h>
#include <asm/dma.h>
#include <linux/io.h>
#include <asm/machdep.h>
#include <asm/coldfire.h>
#include <asm/mcftimer.h>
#include <asm/mcfsim.h>
#include <asm/mcfdma.h>
#include <asm/mcfuart.h>
/***************************************************************************/
@ -26,15 +25,51 @@ void coldfire_reset(void);
/***************************************************************************/
/*
* DMA channel base address table.
*/
unsigned int dma_base_addr[MAX_M68K_DMA_CHANNELS] = {
MCF_MBAR + MCFDMA_BASE0,
MCF_MBAR + MCFDMA_BASE1,
static struct mcf_platform_uart m5206_uart_platform[] = {
{
.mapbase = MCF_MBAR + MCFUART_BASE1,
.irq = 73,
},
{
.mapbase = MCF_MBAR + MCFUART_BASE2,
.irq = 74,
},
{ },
};
unsigned int dma_device_address[MAX_M68K_DMA_CHANNELS];
static struct platform_device m5206_uart = {
.name = "mcfuart",
.id = 0,
.dev.platform_data = m5206_uart_platform,
};
static struct platform_device *m5206_devices[] __initdata = {
&m5206_uart,
};
/***************************************************************************/
static void __init m5206_uart_init_line(int line, int irq)
{
if (line == 0) {
writel(MCFSIM_ICR_LEVEL6 | MCFSIM_ICR_PRI1, MCF_MBAR + MCFSIM_UART1ICR);
writeb(irq, MCFUART_BASE1 + MCFUART_UIVR);
mcf_setimr(mcf_getimr() & ~MCFSIM_IMR_UART1);
} else if (line == 1) {
writel(MCFSIM_ICR_LEVEL6 | MCFSIM_ICR_PRI2, MCF_MBAR + MCFSIM_UART2ICR);
writeb(irq, MCFUART_BASE2 + MCFUART_UIVR);
mcf_setimr(mcf_getimr() & ~MCFSIM_IMR_UART2);
}
}
static void __init m5206_uarts_init(void)
{
const int nrlines = ARRAY_SIZE(m5206_uart_platform);
int line;
for (line = 0; (line < nrlines); line++)
m5206_uart_init_line(line, m5206_uart_platform[line].irq);
}
/***************************************************************************/
@ -88,10 +123,21 @@ int mcf_timerirqpending(int timer)
/***************************************************************************/
void config_BSP(char *commandp, int size)
void __init config_BSP(char *commandp, int size)
{
mcf_setimr(MCFSIM_IMR_MASKALL);
mach_reset = coldfire_reset;
}
/***************************************************************************/
static int __init init_BSP(void)
{
m5206_uarts_init();
platform_add_devices(m5206_devices, ARRAY_SIZE(m5206_devices));
return 0;
}
arch_initcall(init_BSP);
/***************************************************************************/