1/***************************************************************************/ 2 3/* 4 * m68VZ328.c - 68VZ328 specific config 5 * 6 * Copyright (C) 1993 Hamish Macdonald 7 * Copyright (C) 1999 D. Jeff Dionne 8 * Copyright (C) 2001 Georges Menie, Ken Desmet 9 * 10 * This file is subject to the terms and conditions of the GNU General Public 11 * License. See the file COPYING in the main directory of this archive 12 * for more details. 13 */ 14 15/***************************************************************************/ 16 17#include <linux/init.h> 18#include <linux/types.h> 19#include <linux/kernel.h> 20#include <linux/kd.h> 21#include <linux/netdevice.h> 22#include <linux/interrupt.h> 23#include <linux/irq.h> 24#include <linux/rtc.h> 25 26#include <asm/pgtable.h> 27#include <asm/machdep.h> 28#include <asm/MC68VZ328.h> 29#include <asm/bootstd.h> 30 31#ifdef CONFIG_INIT_LCD 32#include "bootlogo-vz.h" 33#endif 34 35/***************************************************************************/ 36 37int m68328_hwclk(int set, struct rtc_time *t); 38 39/***************************************************************************/ 40/* Init Drangon Engine hardware */ 41/***************************************************************************/ 42#if defined(CONFIG_DRAGEN2) 43 44static void m68vz328_reset(void) 45{ 46 local_irq_disable(); 47 48#ifdef CONFIG_INIT_LCD 49 PBDATA |= 0x20; /* disable CCFL light */ 50 PKDATA |= 0x4; /* disable LCD controller */ 51 LCKCON = 0; 52#endif 53 54 __asm__ __volatile__( 55 "reset\n\t" 56 "moveal #0x04000000, %a0\n\t" 57 "moveal 0(%a0), %sp\n\t" 58 "moveal 4(%a0), %a0\n\t" 59 "jmp (%a0)" 60 ); 61} 62 63static void __init init_hardware(char *command, int size) 64{ 65#ifdef CONFIG_DIRECT_IO_ACCESS 66 SCR = 0x10; /* allow user access to internal registers */ 67#endif 68 69 /* CSGB Init */ 70 CSGBB = 0x4000; 71 CSB = 0x1a1; 72 73 /* CS8900 init */ 74 /* PK3: hardware sleep function pin, active low */ 75 PKSEL |= PK(3); /* select pin as I/O */ 76 PKDIR |= PK(3); /* select pin as output */ 77 PKDATA |= PK(3); /* set pin high */ 78 79 /* PF5: hardware reset function pin, active high */ 80 PFSEL |= PF(5); /* select pin as I/O */ 81 PFDIR |= PF(5); /* select pin as output */ 82 PFDATA &= ~PF(5); /* set pin low */ 83 84 /* cs8900 hardware reset */ 85 PFDATA |= PF(5); 86 { int i; for (i = 0; i < 32000; ++i); } 87 PFDATA &= ~PF(5); 88 89 /* INT1 enable (cs8900 IRQ) */ 90 PDPOL &= ~PD(1); /* active high signal */ 91 PDIQEG &= ~PD(1); 92 PDIRQEN |= PD(1); /* IRQ enabled */ 93 94#ifdef CONFIG_INIT_LCD 95 /* initialize LCD controller */ 96 LSSA = (long) screen_bits; 97 LVPW = 0x14; 98 LXMAX = 0x140; 99 LYMAX = 0xef; 100 LRRA = 0; 101 LPXCD = 3; 102 LPICF = 0x08; 103 LPOLCF = 0; 104 LCKCON = 0x80; 105 PCPDEN = 0xff; 106 PCSEL = 0; 107 108 /* Enable LCD controller */ 109 PKDIR |= 0x4; 110 PKSEL |= 0x4; 111 PKDATA &= ~0x4; 112 113 /* Enable CCFL backlighting circuit */ 114 PBDIR |= 0x20; 115 PBSEL |= 0x20; 116 PBDATA &= ~0x20; 117 118 /* contrast control register */ 119 PFDIR |= 0x1; 120 PFSEL &= ~0x1; 121 PWMR = 0x037F; 122#endif 123} 124 125/***************************************************************************/ 126/* Init RT-Control uCdimm hardware */ 127/***************************************************************************/ 128#elif defined(CONFIG_UCDIMM) 129 130static void m68vz328_reset(void) 131{ 132 local_irq_disable(); 133 asm volatile ( 134 "moveal #0x10c00000, %a0;\n\t" 135 "moveb #0, 0xFFFFF300;\n\t" 136 "moveal 0(%a0), %sp;\n\t" 137 "moveal 4(%a0), %a0;\n\t" 138 "jmp (%a0);\n" 139 ); 140} 141 142unsigned char *cs8900a_hwaddr; 143static int errno; 144 145_bsc0(char *, getserialnum) 146_bsc1(unsigned char *, gethwaddr, int, a) 147_bsc1(char *, getbenv, char *, a) 148 149static void __init init_hardware(char *command, int size) 150{ 151 char *p; 152 153 printk(KERN_INFO "uCdimm serial string [%s]\n", getserialnum()); 154 p = cs8900a_hwaddr = gethwaddr(0); 155 printk(KERN_INFO "uCdimm hwaddr %.2x:%.2x:%.2x:%.2x:%.2x:%.2x\n", 156 p[0], p[1], p[2], p[3], p[4], p[5]); 157 p = getbenv("APPEND"); 158 if (p) 159 strcpy(p, command); 160 else 161 command[0] = 0; 162} 163 164/***************************************************************************/ 165#else 166 167static void m68vz328_reset(void) 168{ 169} 170 171static void __init init_hardware(char *command, int size) 172{ 173} 174 175/***************************************************************************/ 176#endif 177/***************************************************************************/ 178 179void __init config_BSP(char *command, int size) 180{ 181 printk(KERN_INFO "68VZ328 DragonBallVZ support (c) 2001 Lineo, Inc.\n"); 182 183 init_hardware(command, size); 184 185 mach_sched_init = hw_timer_init; 186 mach_hwclk = m68328_hwclk; 187 mach_reset = m68vz328_reset; 188} 189 190/***************************************************************************/ 191