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/***************************************************************************/
/*
* m68VZ328.c - 68VZ328 specific config
*
* 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/types.h>
#include <linux/kernel.h>
#include <linux/kd.h>
#include <linux/netdevice.h>
#include <linux/interrupt.h>
#include <linux/irq.h>
#include <linux/rtc.h>
#include <asm/pgtable.h>
#include <asm/machdep.h>
#include <asm/MC68VZ328.h>
#include <asm/bootstd.h>
#ifdef CONFIG_INIT_LCD
#include "bootlogo-vz.h"
#endif
/***************************************************************************/
int m68328_hwclk(int set, struct rtc_time *t);
/***************************************************************************/
/* 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_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;\n\t"
"moveb #0, 0xFFFFF300;\n\t"
"moveal 0(%a0), %sp;\n\t"
"moveal 4(%a0), %a0;\n\t"
"jmp (%a0);\n"
);
}
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");
init_hardware(command, size);
mach_hwclk = m68328_hwclk;
mach_reset = m68vz328_reset;
}
/***************************************************************************/
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