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/***************************************************************************/
/*
* linux/arch/m68knommu/platform/5206/config.c
*
* Copyright (C) 1999-2002, Greg Ungerer (gerg@snapgear.com)
* Copyright (C) 2000-2001, Lineo Inc. (www.lineo.com)
*/
/***************************************************************************/
#include <linux/kernel.h>
#include <linux/param.h>
#include <linux/init.h>
#include <linux/io.h>
#include <asm/machdep.h>
#include <asm/coldfire.h>
#include <asm/mcfsim.h>
#include <asm/mcfuart.h>
/***************************************************************************/
static struct mcf_platform_uart m5206_uart_platform[] = {
{
.mapbase = MCF_MBAR + MCFUART_BASE1,
.irq = 73,
},
{
.mapbase = MCF_MBAR + MCFUART_BASE2,
.irq = 74,
},
{ },
};
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_clrimr(MCFINTC_UART0);
} else if (line == 1) {
writel(MCFSIM_ICR_LEVEL6 | MCFSIM_ICR_PRI2, MCF_MBAR + MCFSIM_UART2ICR);
writeb(irq, MCFUART_BASE2 + MCFUART_UIVR);
mcf_clrimr(MCFINTC_UART1);
}
}
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);
}
/***************************************************************************/
static void __init m5206_timers_init(void)
{
/* Timer1 is always used as system timer */
writeb(MCFSIM_ICR_AUTOVEC | MCFSIM_ICR_LEVEL6 | MCFSIM_ICR_PRI3,
MCF_MBAR + MCFSIM_TIMER1ICR);
#ifdef CONFIG_HIGHPROFILE
/* Timer2 is to be used as a high speed profile timer */
writeb(MCFSIM_ICR_AUTOVEC | MCFSIM_ICR_LEVEL7 | MCFSIM_ICR_PRI3,
MCF_MBAR + MCFSIM_TIMER2ICR);
#endif
}
/***************************************************************************/
void m5206_cpu_reset(void)
{
local_irq_disable();
/* Set watchdog to soft reset, and enabled */
__raw_writeb(0xc0, MCF_MBAR + MCFSIM_SYPCR);
for (;;)
/* wait for watchdog to timeout */;
}
/***************************************************************************/
void __init config_BSP(char *commandp, int size)
{
mach_reset = m5206_cpu_reset;
m5206_timers_init();
}
/***************************************************************************/
static int __init init_BSP(void)
{
m5206_uarts_init();
platform_add_devices(m5206_devices, ARRAY_SIZE(m5206_devices));
return 0;
}
arch_initcall(init_BSP);
/***************************************************************************/
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