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|
/***************************************************************************/
/*
* linux/arch/m68knommu/platform/5407/config.c
*
* Copyright (C) 1999-2002, Greg Ungerer (gerg@snapgear.com)
* Copyright (C) 2000, Lineo (www.lineo.com)
*/
/***************************************************************************/
#include <linux/kernel.h>
#include <linux/param.h>
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/io.h>
#include <asm/machdep.h>
#include <asm/coldfire.h>
#include <asm/mcfsim.h>
#include <asm/mcfuart.h>
/***************************************************************************/
void coldfire_reset(void);
extern unsigned int mcf_timervector;
extern unsigned int mcf_profilevector;
extern unsigned int mcf_timerlevel;
/***************************************************************************/
static struct mcf_platform_uart m5407_uart_platform[] = {
{
.mapbase = MCF_MBAR + MCFUART_BASE1,
.irq = 73,
},
{
.mapbase = MCF_MBAR + MCFUART_BASE2,
.irq = 74,
},
{ },
};
static struct platform_device m5407_uart = {
.name = "mcfuart",
.id = 0,
.dev.platform_data = m5407_uart_platform,
};
static struct platform_device *m5407_devices[] __initdata = {
&m5407_uart,
};
/***************************************************************************/
static void __init m5407_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 m5407_uarts_init(void)
{
const int nrlines = ARRAY_SIZE(m5407_uart_platform);
int line;
for (line = 0; (line < nrlines); line++)
m5407_uart_init_line(line, m5407_uart_platform[line].irq);
}
/***************************************************************************/
void mcf_autovector(unsigned int vec)
{
volatile unsigned char *mbar;
if ((vec >= 25) && (vec <= 31)) {
mbar = (volatile unsigned char *) MCF_MBAR;
vec = 0x1 << (vec - 24);
*(mbar + MCFSIM_AVR) |= vec;
mcf_setimr(mcf_getimr() & ~vec);
}
}
/***************************************************************************/
void mcf_settimericr(unsigned int timer, unsigned int level)
{
volatile unsigned char *icrp;
unsigned int icr, imr;
if (timer <= 2) {
switch (timer) {
case 2: icr = MCFSIM_TIMER2ICR; imr = MCFSIM_IMR_TIMER2; break;
default: icr = MCFSIM_TIMER1ICR; imr = MCFSIM_IMR_TIMER1; break;
}
icrp = (volatile unsigned char *) (MCF_MBAR + icr);
*icrp = MCFSIM_ICR_AUTOVEC | (level << 2) | MCFSIM_ICR_PRI3;
mcf_setimr(mcf_getimr() & ~imr);
}
}
/***************************************************************************/
int mcf_timerirqpending(int timer)
{
unsigned int imr = 0;
switch (timer) {
case 1: imr = MCFSIM_IMR_TIMER1; break;
case 2: imr = MCFSIM_IMR_TIMER2; break;
default: break;
}
return (mcf_getipr() & imr);
}
/***************************************************************************/
void __init config_BSP(char *commandp, int size)
{
mcf_setimr(MCFSIM_IMR_MASKALL);
#if defined(CONFIG_CLEOPATRA)
/* Different timer setup - to prevent device clash */
mcf_timervector = 30;
mcf_profilevector = 31;
mcf_timerlevel = 6;
#endif
mach_reset = coldfire_reset;
}
/***************************************************************************/
static int __init init_BSP(void)
{
m5407_uarts_init();
platform_add_devices(m5407_devices, ARRAY_SIZE(m5407_devices));
return 0;
}
arch_initcall(init_BSP);
/***************************************************************************/
|
