[PATCH] m68knommu: create common config code for all 68VZ328 platforms

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

/*

 *  linux/arch/m68knommu/platform/68VZ328/config.c

 *

 *  Copyright (C) 1993 Hamish Macdonald

 *  Copyright (C) 1999 D. Jeff Dionne

 *  Copyright (C) 2001 Georges Menie, Ken Desmet

 *

 * This file is subject to the terms and conditions of the GNU General Public

 * License.  See the file COPYING in the main directory of this archive

 * for more details.

 */

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

#include <linux/config.h>

#include <linux/types.h>

#include <linux/kernel.h>

#include <linux/mm.h>

#include <linux/tty.h>

#include <linux/console.h>

#include <linux/kd.h>

#include <linux/netdevice.h>

#include <asm/setup.h>

#include <asm/system.h>

#include <asm/pgtable.h>

#include <asm/irq.h>

#include <asm/machdep.h>

#include <asm/MC68VZ328.h>

#include <asm/bootstd.h>

#ifdef CONFIG_INIT_LCD

#include "bootlogo.h"

#endif

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

void m68328_timer_init(irqreturn_t (*timer_routine) (int, void *, struct pt_regs *));

void m68328_timer_tick(void);

unsigned long m68328_timer_gettimeoffset(void);

void m68328_timer_gettod(int *year, int *mon, int *day, int *hour, int *min, int *sec);

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

/*                        Init Drangon Engine hardware                     */

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

#if defined(CONFIG_DRAGEN2)

static void m68vz328_reset(void)

{

	local_irq_disable();

#ifdef CONFIG_INIT_LCD

	PBDATA |= 0x20;				/* disable CCFL light */

	PKDATA |= 0x4;				/* disable LCD controller */

	LCKCON = 0;

#endif

	__asm__ __volatile__(

		"reset\n\t"

		"moveal #0x04000000, %a0\n\t"

		"moveal 0(%a0), %sp\n\t"

		"moveal 4(%a0), %a0\n\t"

		"jmp (%a0)"

	);

}

static void init_hardware(char *command, int size)

{

#ifdef CONFIG_DIRECT_IO_ACCESS

	SCR = 0x10;					/* allow user access to internal registers */

#endif

	/* CSGB Init */

	CSGBB = 0x4000;

	CSB = 0x1a1;

	/* CS8900 init */

	/* PK3: hardware sleep function pin, active low */

	PKSEL |= PK(3);				/* select pin as I/O */

	PKDIR |= PK(3);				/* select pin as output */

	PKDATA |= PK(3);			/* set pin high */

	/* PF5: hardware reset function pin, active high */

	PFSEL |= PF(5);				/* select pin as I/O */

	PFDIR |= PF(5);				/* select pin as output */

	PFDATA &= ~PF(5);			/* set pin low */

	/* cs8900 hardware reset */

	PFDATA |= PF(5);

	{ int i; for (i = 0; i < 32000; ++i); }

	PFDATA &= ~PF(5);

	/* INT1 enable (cs8900 IRQ) */

	PDPOL &= ~PD(1);			/* active high signal */

	PDIQEG &= ~PD(1);

	PDIRQEN |= PD(1);			/* IRQ enabled */

#ifdef CONFIG_68328_SERIAL_UART2

	/* Enable RXD TXD port bits to enable UART2 */

	PJSEL &= ~(PJ(5) | PJ(4));

#endif

#ifdef CONFIG_INIT_LCD

	/* initialize LCD controller */

	LSSA = (long) screen_bits;

	LVPW = 0x14;

	LXMAX = 0x140;

	LYMAX = 0xef;

	LRRA = 0;

	LPXCD = 3;

	LPICF = 0x08;

	LPOLCF = 0;

	LCKCON = 0x80;

	PCPDEN = 0xff;

	PCSEL = 0;

	/* Enable LCD controller */

	PKDIR |= 0x4;

	PKSEL |= 0x4;

	PKDATA &= ~0x4;

	/* Enable CCFL backlighting circuit */

	PBDIR |= 0x20;

	PBSEL |= 0x20;

	PBDATA &= ~0x20;

	/* contrast control register */

	PFDIR |= 0x1;

	PFSEL &= ~0x1;

	PWMR = 0x037F;

#endif

}

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

/*                      Init RT-Control uCdimm hardware                    */

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

#elif defined(CONFIG_UCDIMM)

static void m68vz328_reset(void)

{

	local_irq_disable();

	asm volatile ("

		moveal #0x10c00000, %a0;

		moveb #0, 0xFFFFF300;

		moveal 0(%a0), %sp;

		moveal 4(%a0), %a0;

		jmp (%a0);

	");

}

unsigned char *cs8900a_hwaddr;

static int errno;

_bsc0(char *, getserialnum)

_bsc1(unsigned char *, gethwaddr, int, a)

_bsc1(char *, getbenv, char *, a)

static void init_hardware(char *command, int size)

{

	char *p;

	printk(KERN_INFO "uCdimm serial string [%s]\n", getserialnum());

	p = cs8900a_hwaddr = gethwaddr(0);

	printk(KERN_INFO "uCdimm hwaddr %.2x:%.2x:%.2x:%.2x:%.2x:%.2x\n",

		p[0], p[1], p[2], p[3], p[4], p[5]);

	p = getbenv("APPEND");

	if (p)

		strcpy(p, command);

	else

		command[0] = 0;

}

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

#else

static void m68vz328_reset(void)

{

}

static void init_hardware(char *command, int size)

{

}

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

#endif

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

void config_BSP(char *command, int size)

{

	printk(KERN_INFO "68VZ328 DragonBallVZ support (c) 2001 Lineo, Inc.\n");

#if defined(CONFIG_BOOTPARAM)

	strncpy(command, CONFIG_BOOTPARAM_STRING, size);

	command[size-1] = 0;

#else

	memset(command, 0, size);

#endif

	init_hardware(command, size);

	mach_sched_init = (void *) m68328_timer_init;

	mach_tick = m68328_timer_tick;

	mach_gettimeoffset = m68328_timer_gettimeoffset;

	mach_gettod = m68328_timer_gettod;

	mach_reset = m68vz328_reset;

}

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