[mirror_ubuntu-jammy-kernel.git] / arch / m68knommu / platform / 5272 / config.c

/***************************************************************************/

/*
 *	linux/arch/m68knommu/platform/5272/config.c
 *
 *	Copyright (C) 1999-2002, Greg Ungerer (gerg@snapgear.com)
 *	Copyright (C) 2001-2002, SnapGear Inc. (www.snapgear.com)
 */

/***************************************************************************/

#include <linux/kernel.h>
#include <linux/sched.h>
#include <linux/param.h>
#include <linux/init.h>
#include <linux/interrupt.h>
#include <asm/irq.h>
#include <asm/dma.h>
#include <asm/traps.h>
#include <asm/machdep.h>
#include <asm/coldfire.h>
#include <asm/mcftimer.h>
#include <asm/mcfsim.h>
#include <asm/mcfdma.h>

/***************************************************************************/

void coldfire_tick(void);
void coldfire_timer_init(irqreturn_t (*handler)(int, void *, struct pt_regs *));
unsigned long coldfire_timer_offset(void);
void coldfire_trap_init(void);
void coldfire_reset(void);

extern unsigned int mcf_timervector;
extern unsigned int mcf_profilevector;
extern unsigned int mcf_timerlevel;

/***************************************************************************/

/*
 *	Some platforms need software versions of the GPIO data registers.
 */
unsigned short ppdata;
unsigned char ledbank = 0xff;

/***************************************************************************/

/*
 *	DMA channel base address table.
 */
unsigned int   dma_base_addr[MAX_M68K_DMA_CHANNELS] = {
        MCF_MBAR + MCFDMA_BASE0,
};

unsigned int dma_device_address[MAX_M68K_DMA_CHANNELS];

/***************************************************************************/

void mcf_disableall(void)
{
	volatile unsigned long	*icrp;

	icrp = (volatile unsigned long *) (MCF_MBAR + MCFSIM_ICR1);
	icrp[0] = 0x88888888;
	icrp[1] = 0x88888888;
	icrp[2] = 0x88888888;
	icrp[3] = 0x88888888;
}

/***************************************************************************/

void mcf_autovector(unsigned int vec)
{
	/* Everything is auto-vectored on the 5272 */
}

/***************************************************************************/

void mcf_settimericr(int timer, int level)
{
	volatile unsigned long *icrp;

	if ((timer >= 1 ) && (timer <= 4)) {
		icrp = (volatile unsigned long *) (MCF_MBAR + MCFSIM_ICR1);
		*icrp = (0x8 | level) << ((4 - timer) * 4);
	}
}

/***************************************************************************/

int mcf_timerirqpending(int timer)
{
	volatile unsigned long *icrp;

	if ((timer >= 1 ) && (timer <= 4)) {
		icrp = (volatile unsigned long *) (MCF_MBAR + MCFSIM_ICR1);
		return (*icrp & (0x8 << ((4 - timer) * 4)));
	}
	return 0;
}

/***************************************************************************/

void config_BSP(char *commandp, int size)
{
#if defined (CONFIG_MOD5272)
	volatile unsigned char	*pivrp;

	/* Set base of device vectors to be 64 */
	pivrp = (volatile unsigned char *) (MCF_MBAR + MCFSIM_PIVR);
	*pivrp = 0x40;
#endif

	mcf_disableall();

#if defined(CONFIG_BOOTPARAM)
	strncpy(commandp, CONFIG_BOOTPARAM_STRING, size);
	commandp[size-1] = 0;
#elif defined(CONFIG_NETtel) || defined(CONFIG_SCALES)
	/* Copy command line from FLASH to local buffer... */
	memcpy(commandp, (char *) 0xf0004000, size);
	commandp[size-1] = 0;
#elif defined(CONFIG_MTD_KeyTechnology)
	/* Copy command line from FLASH to local buffer... */
	memcpy(commandp, (char *) 0xffe06000, size);
	commandp[size-1] = 0;
#elif defined(CONFIG_CANCam)
	/* Copy command line from FLASH to local buffer... */
	memcpy(commandp, (char *) 0xf0010000, size);
	commandp[size-1] = 0;
#else
	memset(commandp, 0, size);
#endif

	mcf_timervector = 69;
	mcf_profilevector = 70;
	mach_sched_init = coldfire_timer_init;
	mach_tick = coldfire_tick;
	mach_gettimeoffset = coldfire_timer_offset;
	mach_trap_init = coldfire_trap_init;
	mach_reset = coldfire_reset;
}

/***************************************************************************/
Commit	Line	Data
1da177e4 LT	1	/***************************************************************************/
	2
	3	/*
	4	* linux/arch/m68knommu/platform/5272/config.c
	5	*
	6	* Copyright (C) 1999-2002, Greg Ungerer (gerg@snapgear.com)
	7	* Copyright (C) 2001-2002, SnapGear Inc. (www.snapgear.com)
	8	*/
	9
	10	/***************************************************************************/
	11
1da177e4 LT	12	#include <linux/kernel.h>
	13	#include <linux/sched.h>
	14	#include <linux/param.h>
	15	#include <linux/init.h>
	16	#include <linux/interrupt.h>
	17	#include <asm/irq.h>
	18	#include <asm/dma.h>
	19	#include <asm/traps.h>
	20	#include <asm/machdep.h>
	21	#include <asm/coldfire.h>
	22	#include <asm/mcftimer.h>
	23	#include <asm/mcfsim.h>
	24	#include <asm/mcfdma.h>
	25
	26	/***************************************************************************/
	27
	28	void coldfire_tick(void);
	29	void coldfire_timer_init(irqreturn_t (handler)(int, void , struct pt_regs *));
	30	unsigned long coldfire_timer_offset(void);
	31	void coldfire_trap_init(void);
	32	void coldfire_reset(void);
	33
	34	extern unsigned int mcf_timervector;
	35	extern unsigned int mcf_profilevector;
	36	extern unsigned int mcf_timerlevel;
	37
	38	/***************************************************************************/
	39
	40	/*
	41	* Some platforms need software versions of the GPIO data registers.
	42	*/
	43	unsigned short ppdata;
	44	unsigned char ledbank = 0xff;
	45
	46	/***************************************************************************/
	47
	48	/*
	49	* DMA channel base address table.
	50	*/
	51	unsigned int dma_base_addr[MAX_M68K_DMA_CHANNELS] = {
	52	MCF_MBAR + MCFDMA_BASE0,
	53	};
	54
	55	unsigned int dma_device_address[MAX_M68K_DMA_CHANNELS];
	56
	57	/***************************************************************************/
	58
	59	void mcf_disableall(void)
	60	{
	61	volatile unsigned long *icrp;
	62
	63	icrp = (volatile unsigned long *) (MCF_MBAR + MCFSIM_ICR1);
	64	icrp[0] = 0x88888888;
	65	icrp[1] = 0x88888888;
	66	icrp[2] = 0x88888888;
	67	icrp[3] = 0x88888888;
	68	}
	69
	70	/***************************************************************************/
	71
	72	void mcf_autovector(unsigned int vec)
	73	{
	74	/* Everything is auto-vectored on the 5272 */
	75	}
76
77	/***************************************************************************/
78
79	void mcf_settimericr(int timer, int level)
80	{
81	volatile unsigned long *icrp;
82
83	if ((timer >= 1 ) && (timer <= 4)) {
84	icrp = (volatile unsigned long *) (MCF_MBAR + MCFSIM_ICR1);
85	icrp = (0x8 \| level) << ((4 - timer) 4);
86	}
87	}
88
89	/***************************************************************************/
90
91	int mcf_timerirqpending(int timer)
92	{
93	volatile unsigned long *icrp;
94
95	if ((timer >= 1 ) && (timer <= 4)) {
96	icrp = (volatile unsigned long *) (MCF_MBAR + MCFSIM_ICR1);
97	return (icrp & (0x8 << ((4 - timer) 4)));
98	}
99	return 0;
100	}
101
102	/***************************************************************************/
103
104	void config_BSP(char *commandp, int size)
105	{
a7962660 GU	106	#if defined (CONFIG_MOD5272)
a7962660 GU	107	volatile unsigned char *pivrp;
1da177e4 LT	108
1da177e4 LT	109	/* Set base of device vectors to be 64 */
a7962660	110	pivrp = (volatile unsigned char *) (MCF_MBAR + MCFSIM_PIVR);
1da177e4 LT	111	*pivrp = 0x40;
	112	#endif
	113
	114	mcf_disableall();
	115
	116	#if defined(CONFIG_BOOTPARAM)
	117	strncpy(commandp, CONFIG_BOOTPARAM_STRING, size);
	118	commandp[size-1] = 0;
	119	#elif defined(CONFIG_NETtel) \|\| defined(CONFIG_SCALES)
	120	/* Copy command line from FLASH to local buffer... */
	121	memcpy(commandp, (char *) 0xf0004000, size);
	122	commandp[size-1] = 0;
	123	#elif defined(CONFIG_MTD_KeyTechnology)
	124	/* Copy command line from FLASH to local buffer... */
	125	memcpy(commandp, (char *) 0xffe06000, size);
	126	commandp[size-1] = 0;
	127	#elif defined(CONFIG_CANCam)
	128	/* Copy command line from FLASH to local buffer... */
	129	memcpy(commandp, (char *) 0xf0010000, size);
	130	commandp[size-1] = 0;
	131	#else
	132	memset(commandp, 0, size);
	133	#endif
	134
	135	mcf_timervector = 69;
	136	mcf_profilevector = 70;
	137	mach_sched_init = coldfire_timer_init;
	138	mach_tick = coldfire_tick;
	139	mach_gettimeoffset = coldfire_timer_offset;
	140	mach_trap_init = coldfire_trap_init;
	141	mach_reset = coldfire_reset;
	142	}
	143
	144	/***************************************************************************/