/*
* linux/arch/m68k/amiga/config.c
*
* Copyright (C) 1993 Hamish Macdonald
*
* 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.
*/
/*
* Miscellaneous Amiga stuff
*/
#include <linux/types.h>
#include <linux/kernel.h>
#include <linux/mm.h>
#include <linux/tty.h>
#include <linux/console.h>
#include <linux/rtc.h>
#include <linux/init.h>
#include <linux/vt_kern.h>
#include <linux/delay.h>
#include <linux/interrupt.h>
#include <linux/zorro.h>
#include <asm/bootinfo.h>
#include <asm/setup.h>
#include <asm/system.h>
#include <asm/pgtable.h>
#include <asm/amigahw.h>
#include <asm/amigaints.h>
#include <asm/irq.h>
#include <asm/rtc.h>
#include <asm/machdep.h>
#include <asm/io.h>
unsigned long amiga_model;
unsigned long amiga_eclock;
unsigned long amiga_masterclock;
unsigned long amiga_colorclock;
unsigned long amiga_chipset;
unsigned char amiga_vblank;
unsigned char amiga_psfreq;
struct amiga_hw_present amiga_hw_present;
static char s_a500[] __initdata = "A500";
static char s_a500p[] __initdata = "A500+";
static char s_a600[] __initdata = "A600";
static char s_a1000[] __initdata = "A1000";
static char s_a1200[] __initdata = "A1200";
static char s_a2000[] __initdata = "A2000";
static char s_a2500[] __initdata = "A2500";
static char s_a3000[] __initdata = "A3000";
static char s_a3000t[] __initdata = "A3000T";
static char s_a3000p[] __initdata = "A3000+";
static char s_a4000[] __initdata = "A4000";
static char s_a4000t[] __initdata = "A4000T";
static char s_cdtv[] __initdata = "CDTV";
static char s_cd32[] __initdata = "CD32";
static char s_draco[] __initdata = "Draco";
static char *amiga_models[] __initdata = {
[AMI_500-AMI_500] = s_a500,
[AMI_500PLUS-AMI_500] = s_a500p,
[AMI_600-AMI_500] = s_a600,
[AMI_1000-AMI_500] = s_a1000,
[AMI_1200-AMI_500] = s_a1200,
[AMI_2000-AMI_500] = s_a2000,
[AMI_2500-AMI_500] = s_a2500,
[AMI_3000-AMI_500] = s_a3000,
[AMI_3000T-AMI_500] = s_a3000t,
[AMI_3000PLUS-AMI_500] = s_a3000p,
[AMI_4000-AMI_500] = s_a4000,
[AMI_4000T-AMI_500] = s_a4000t,
[AMI_CDTV-AMI_500] = s_cdtv,
[AMI_CD32-AMI_500] = s_cd32,
[AMI_DRACO-AMI_500] = s_draco,
};
static char amiga_model_name[13] = "Amiga ";
static void amiga_sched_init(irq_handler_t handler);
/* amiga specific irq functions */
extern void amiga_init_IRQ(void);
static void amiga_get_model(char *model);
static int amiga_get_hardware_list(char *buffer);
/* amiga specific timer functions */
static unsigned long amiga_gettimeoffset(void);
static int a3000_hwclk(int, struct rtc_time *);
static int a2000_hwclk(int, struct rtc_time *);
static int amiga_set_clock_mmss(unsigned long);
static unsigned int amiga_get_ss(void);
extern void amiga_mksound(unsigned int count, unsigned int ticks);
static void amiga_reset(void);
extern void amiga_init_sound(void);
static void amiga_mem_console_write(struct console *co, const char *b,
unsigned int count);
void amiga_serial_console_write(struct console *co, const char *s,
unsigned int count);
#ifdef CONFIG_HEARTBEAT
static void amiga_heartbeat(int on);
#endif
static struct console amiga_console_driver = {
.name = "debug",
.flags = CON_PRINTBUFFER,
.index = -1,
};
/*
* Motherboard Resources present in all Amiga models
*/
static struct {
struct resource _ciab, _ciaa, _custom, _kickstart;
} mb_resources = {
._ciab = {
.name = "CIA B", .start = 0x00bfd000, .end = 0x00bfdfff
},
._ciaa = {
.name = "CIA A", .start = 0x00bfe000, .end = 0x00bfefff
},
._custom = {
.name = "Custom I/O", .start = 0x00dff000, .end = 0x00dfffff
},
._kickstart = {
.name = "Kickstart ROM", .start = 0x00f80000, .end = 0x00ffffff
}
};
static struct resource rtc_resource = {
.start = 0x00dc0000, .end = 0x00dcffff
};
static struct resource ram_resource[NUM_MEMINFO];
/*
* Parse an Amiga-specific record in the bootinfo
*/
int amiga_parse_bootinfo(const struct bi_record *record)
{
int unknown = 0;
const unsigned long *data = record->data;
switch (record->tag) {
case BI_AMIGA_MODEL:
amiga_model = *data;
break;
case BI_AMIGA_ECLOCK:
amiga_eclock = *data;
break;
case BI_AMIGA_CHIPSET:
amiga_chipset = *data;
break;
case BI_AMIGA_CHIP_SIZE:
amiga_chip_size = *(const int *)data;
break;
case BI_AMIGA_VBLANK:
amiga_vblank = *(const unsigned char *)data;
break;
case BI_AMIGA_PSFREQ:
amiga_psfreq = *(const unsigned char *)data;
break;
case BI_AMIGA_AUTOCON:
#ifdef CONFIG_ZORRO
if (zorro_num_autocon < ZORRO_NUM_AUTO) {
const struct ConfigDev *cd = (struct ConfigDev *)data;
struct zorro_dev *dev = &zorro_autocon[zorro_num_autocon++];
dev->rom = cd->cd_Rom;
dev->slotaddr = cd->cd_SlotAddr;
dev->slotsize = cd->cd_SlotSize;
dev->resource.start = (unsigned long)cd->cd_BoardAddr;
dev->resource.end = dev->resource.start + cd->cd_BoardSize - 1;
} else
printk("amiga_parse_bootinfo: too many AutoConfig devices\n");
#endif /* CONFIG_ZORRO */
break;
case BI_AMIGA_SERPER:
/* serial port period: ignored here */
break;
default:
unknown = 1;
}
return unknown;
}
/*
* Identify builtin hardware
*/
static void __init amiga_identify(void)
{
/* Fill in some default values, if necessary */
if (amiga_eclock == 0)
amiga_eclock = 709379;
memset(&amiga_hw_present, 0, sizeof(amiga_hw_present));
printk("Amiga hardware found: ");
if (amiga_model >= AMI_500 && amiga_model <= AMI_DRACO) {
printk("[%s] ", amiga_models[amiga_model-AMI_500]);
strcat(amiga_model_name, amiga_models[amiga_model-AMI_500]);
}
switch (amiga_model) {
case AMI_UNKNOWN:
goto Generic;
case AMI_600:
case AMI_1200:
AMIGAHW_SET(A1200_IDE);
AMIGAHW_SET(PCMCIA);
case AMI_500:
case AMI_500PLUS:
case AMI_1000:
case AMI_2000:
case AMI_2500:
AMIGAHW_SET(A2000_CLK); /* Is this correct for all models? */
goto Generic;
case AMI_3000:
case AMI_3000T:
AMIGAHW_SET(AMBER_FF);
AMIGAHW_SET(MAGIC_REKICK);
/* fall through */
case AMI_3000PLUS:
AMIGAHW_SET(A3000_SCSI);
AMIGAHW_SET(A3000_CLK);
AMIGAHW_SET(ZORRO3);
goto Generic;
case AMI_4000T:
AMIGAHW_SET(A4000_SCSI);
/* fall through */
case AMI_4000:
AMIGAHW_SET(A4000_IDE);
AMIGAHW_SET(A3000_CLK);
AMIGAHW_SET(ZORRO3);
goto Generic;
case AMI_CDTV:
case AMI_CD32:
AMIGAHW_SET(CD_ROM);
AMIGAHW_SET(A2000_CLK); /* Is this correct? */
goto Generic;
Generic:
AMIGAHW_SET(AMI_VIDEO);
AMIGAHW_SET(AMI_BLITTER);
AMIGAHW_SET(AMI_AUDIO);
AMIGAHW_SET(AMI_FLOPPY);
AMIGAHW_SET(AMI_KEYBOARD);
AMIGAHW_SET(AMI_MOUSE);
AMIGAHW_SET(AMI_SERIAL);
AMIGAHW_SET(AMI_PARALLEL);
AMIGAHW_SET(CHIP_RAM);
AMIGAHW_SET(PAULA);
switch (amiga_chipset) {
case CS_OCS:
case CS_ECS:
case CS_AGA:
switch (amiga_custom.deniseid & 0xf) {
case 0x0c:
AMIGAHW_SET(DENISE_HR);
break;
case 0x08:
AMIGAHW_SET(LISA);
break;
}
break;
default:
AMIGAHW_SET(DENISE);
break;
}
switch ((amiga_custom.vposr>>8) & 0x7f) {
case 0x00:
AMIGAHW_SET(AGNUS_PAL);
break;
case 0x10:
AMIGAHW_SET(AGNUS_NTSC);
break;
case 0x20:
case 0x21:
AMIGAHW_SET(AGNUS_HR_PAL);
break;
case 0x30:
case 0x31:
AMIGAHW_SET(AGNUS_HR_NTSC);
break;
case 0x22:
case 0x23:
AMIGAHW_SET(ALICE_PAL);
break;
case 0x32:
case 0x33:
AMIGAHW_SET(ALICE_NTSC);
break;
}
AMIGAHW_SET(ZORRO);
break;
case AMI_DRACO:
panic("No support for Draco yet");
default:
panic("Unknown Amiga Model");
}
#define AMIGAHW_ANNOUNCE(name, str) \
if (AMIGAHW_PRESENT(name)) \
printk(str)
AMIGAHW_ANNOUNCE(AMI_VIDEO, "VIDEO ");
AMIGAHW_ANNOUNCE(AMI_BLITTER, "BLITTER ");
AMIGAHW_ANNOUNCE(AMBER_FF, "AMBER_FF ");
AMIGAHW_ANNOUNCE(AMI_AUDIO, "AUDIO ");
AMIGAHW_ANNOUNCE(AMI_FLOPPY, "FLOPPY ");
AMIGAHW_ANNOUNCE(A3000_SCSI, "A3000_SCSI ");
AMIGAHW_ANNOUNCE(A4000_SCSI, "A4000_SCSI ");
AMIGAHW_ANNOUNCE(A1200_IDE, "A1200_IDE ");
AMIGAHW_ANNOUNCE(A4000_IDE, "A4000_IDE ");
AMIGAHW_ANNOUNCE(CD_ROM, "CD_ROM ");
AMIGAHW_ANNOUNCE(AMI_KEYBOARD, "KEYBOARD ");
AMIGAHW_ANNOUNCE(AMI_MOUSE, "MOUSE ");
AMIGAHW_ANNOUNCE(AMI_SERIAL, "SERIAL ");
AMIGAHW_ANNOUNCE(AMI_PARALLEL, "PARALLEL ");
AMIGAHW_ANNOUNCE(A2000_CLK, "A2000_CLK ");
AMIGAHW_ANNOUNCE(A3000_CLK, "A3000_CLK ");
AMIGAHW_ANNOUNCE(CHIP_RAM, "CHIP_RAM ");
AMIGAHW_ANNOUNCE(PAULA, "PAULA ");
AMIGAHW_ANNOUNCE(DENISE, "DENISE ");
AMIGAHW_ANNOUNCE(DENISE_HR, "DENISE_HR ");
AMIGAHW_ANNOUNCE(LISA, "LISA ");
AMIGAHW_ANNOUNCE(AGNUS_PAL, "AGNUS_PAL ");
AMIGAHW_ANNOUNCE(AGNUS_NTSC, "AGNUS_NTSC ");
AMIGAHW_ANNOUNCE(AGNUS_HR_PAL, "AGNUS_HR_PAL ");
AMIGAHW_ANNOUNCE(AGNUS_HR_NTSC, "AGNUS_HR_NTSC ");
AMIGAHW_ANNOUNCE(ALICE_PAL, "ALICE_PAL ");
AMIGAHW_ANNOUNCE(ALICE_NTSC, "ALICE_NTSC ");
AMIGAHW_ANNOUNCE(MAGIC_REKICK, "MAGIC_REKICK ");
AMIGAHW_ANNOUNCE(PCMCIA, "PCMCIA ");
if (AMIGAHW_PRESENT(ZORRO))
printk("ZORRO%s ", AMIGAHW_PRESENT(ZORRO3) ? "3" : "");
printk("\n");
#undef AMIGAHW_ANNOUNCE
}
/*
* Setup the Amiga configuration info
*/
void __init config_amiga(void)
{
int i;
amiga_identify();
/* Yuk, we don't have PCI memory */
iomem_resource.name = "Memory";
for (i = 0; i < 4; i++)
request_resource(&iomem_resource, &((struct resource *)&mb_resources)[i]);
mach_sched_init = amiga_sched_init;
mach_init_IRQ = amiga_init_IRQ;
mach_get_model = amiga_get_model;
mach_get_hardware_list = amiga_get_hardware_list;
mach_gettimeoffset = amiga_gettimeoffset;
if (AMIGAHW_PRESENT(A3000_CLK)) {
mach_hwclk = a3000_hwclk;
rtc_resource.name = "A3000 RTC";
request_resource(&iomem_resource, &rtc_resource);
} else /* if (AMIGAHW_PRESENT(A2000_CLK)) */ {
mach_hwclk = a2000_hwclk;
rtc_resource.name = "A2000 RTC";
request_resource(&iomem_resource, &rtc_resource);
}
/*
* default MAX_DMA=0xffffffff on all machines. If we don't do so, the SCSI
* code will not be able to allocate any mem for transfers, unless we are
* dealing with a Z2 mem only system. /Jes
*/
mach_max_dma_address = 0xffffffff;
mach_set_clock_mmss = amiga_set_clock_mmss;
mach_get_ss = amiga_get_ss;
mach_reset = amiga_reset;
#if defined(CONFIG_INPUT_M68K_BEEP) || defined(CONFIG_INPUT_M68K_BEEP_MODULE)
mach_beep = amiga_mksound;
#endif
#ifdef CONFIG_HEARTBEAT
mach_heartbeat = amiga_heartbeat;
#endif
/* Fill in the clock values (based on the 700 kHz E-Clock) */
amiga_masterclock = 40*amiga_eclock; /* 28 MHz */
amiga_colorclock = 5*amiga_eclock; /* 3.5 MHz */
/* clear all DMA bits */
amiga_custom.dmacon = DMAF_ALL;
/* ensure that the DMA master bit is set */
amiga_custom.dmacon = DMAF_SETCLR | DMAF_MASTER;
/* don't use Z2 RAM as system memory on Z3 capable machines */
if (AMIGAHW_PRESENT(ZORRO3)) {
int i, j;
u32 disabled_z2mem = 0;
for (i = 0; i < m68k_num_memory; i++) {
if (m68k_memory[i].addr < 16*1024*1024) {
if (i == 0) {
/* don't cut off the branch we're sitting on */
printk("Warning: kernel runs in Zorro II memory\n");
continue;
}
disabled_z2mem += m68k_memory[i].size;
m68k_num_memory--;
for (j = i; j < m68k_num_memory; j++)
m68k_memory[j] = m68k_memory[j+1];
i--;
}
}
if (disabled_z2mem)
printk("%dK of Zorro II memory will not be used as system memory\n",
disabled_z2mem>>10);
}
/* request all RAM */
for (i = 0; i < m68k_num_memory; i++) {
ram_resource[i].name =
(m68k_memory[i].addr >= 0x01000000) ? "32-bit Fast RAM" :
(m68k_memory[i].addr < 0x00c00000) ? "16-bit Fast RAM" :
"16-bit Slow RAM";
ram_resource[i].start = m68k_memory[i].addr;
ram_resource[i].end = m68k_memory[i].addr+m68k_memory[i].size-1;
request_resource(&iomem_resource, &ram_resource[i]);
}
/* initialize chipram allocator */
amiga_chip_init();
/* our beloved beeper */
if (AMIGAHW_PRESENT(AMI_AUDIO))
amiga_init_sound();
/*
* if it is an A3000, set the magic bit that forces
* a hard rekick
*/
if (AMIGAHW_PRESENT(MAGIC_REKICK))
*(unsigned char *)ZTWO_VADDR(0xde0002) |= 0x80;
}
static unsigned short jiffy_ticks;
static void __init amiga_sched_init(irq_handler_t timer_routine)
{
static struct resource sched_res = {
.name = "timer", .start = 0x00bfd400, .end = 0x00bfd5ff,
};
jiffy_ticks = (amiga_eclock+HZ/2)/HZ;
if (request_resource(&mb_resources._ciab, &sched_res))
printk("Cannot allocate ciab.ta{lo,hi}\n");
ciab.cra &= 0xC0; /* turn off timer A, continuous mode, from Eclk */
ciab.talo = jiffy_ticks % 256;
ciab.tahi = jiffy_ticks / 256;
/* install interrupt service routine for CIAB Timer A
*
* Please don't change this to use ciaa, as it interferes with the
* SCSI code. We'll have to take a look at this later
*/
request_irq(IRQ_AMIGA_CIAB_TA, timer_routine, 0, "timer", NULL);
/* start timer */
ciab.cra |= 0x11;
}
#define TICK_SIZE 10000
/* This is always executed with interrupts disabled. */
static unsigned long amiga_gettimeoffset(void)
{
unsigned short hi, lo, hi2;
unsigned long ticks, offset = 0;
/* read CIA B timer A current value */
hi = ciab.tahi;
lo = ciab.talo;
hi2 = ciab.tahi;
if (hi != hi2) {
lo = ciab.talo;
hi = hi2;
}
ticks = hi << 8 | lo;
if (ticks > jiffy_ticks / 2)
/* check for pending interrupt */
if (cia_set_irq(&ciab_base, 0) & CIA_ICR_TA)
offset = 10000;
ticks = jiffy_ticks - ticks;
ticks = (10000 * ticks) / jiffy_ticks;
return ticks + offset;
}
static int a3000_hwclk(int op, struct rtc_time *t)
{
tod_3000.cntrl1 = TOD3000_CNTRL1_HOLD;
if (!op) { /* read */
t->tm_sec = tod_3000.second1 * 10 + tod_3000.second2;
t->tm_min = tod_3000.minute1 * 10 + tod_3000.minute2;
t->tm_hour = tod_3000.hour1 * 10 + tod_3000.hour2;
t->tm_mday = tod_3000.day1 * 10 + tod_3000.day2;
t->tm_wday = tod_3000.weekday;
t->tm_mon = tod_3000.month1 * 10 + tod_3000.month2 - 1;
t->tm_year = tod_3000.year1 * 10 + tod_3000.year2;
if (t->tm_year <= 69)
t->tm_year += 100;
} else {
tod_3000.second1 = t->tm_sec / 10;
tod_3000.second2 = t->tm_sec % 10;
tod_3000.minute1 = t->tm_min / 10;
tod_3000.minute2 = t->tm_min % 10;
tod_3000.hour1 = t->tm_hour / 10;
tod_3000.hour2 = t->tm_hour % 10;
tod_3000.day1 = t->tm_mday / 10;
tod_3000.day2 = t->tm_mday % 10;
if (t->tm_wday != -1)
tod_3000.weekday = t->tm_wday;
tod_3000.month1 = (t->tm_mon + 1) / 10;
tod_3000.month2 = (t->tm_mon + 1) % 10;
if (t->tm_year >= 100)
t->tm_year -= 100;
tod_3000.year1 = t->tm_year / 10;
tod_3000.year2 = t->tm_year % 10;
}
tod_3000.cntrl1 = TOD3000_CNTRL1_FREE;
return 0;
}
static int a2000_hwclk(int op, struct rtc_time *t)
{
int cnt = 5;
tod_2000.cntrl1 = TOD2000_CNTRL1_HOLD;
while ((tod_2000.cntrl1 & TOD2000_CNTRL1_BUSY) && cnt--) {
tod_2000.cntrl1 &= ~TOD2000_CNTRL1_HOLD;
udelay(70);
tod_2000.cntrl1 |= TOD2000_CNTRL1_HOLD;
}
if (!cnt)
printk(KERN_INFO "hwclk: timed out waiting for RTC (0x%x)\n",
tod_2000.cntrl1);
if (!op) { /* read */
t->tm_sec = tod_2000.second1 * 10 + tod_2000.second2;
t->tm_min = tod_2000.minute1 * 10 + tod_2000.minute2;
t->tm_hour = (tod_2000.hour1 & 3) * 10 + tod_2000.hour2;
t->tm_mday = tod_2000.day1 * 10 + tod_2000.day2;
t->tm_wday = tod_2000.weekday;
t->tm_mon = tod_2000.month1 * 10 + tod_2000.month2 - 1;
t->tm_year = tod_2000.year1 * 10 + tod_2000.year2;
if (t->tm_year <= 69)
t->tm_year += 100;
if (!(tod_2000.cntrl3 & TOD2000_CNTRL3_24HMODE)) {
if (!(tod_2000.hour1 & TOD2000_HOUR1_PM) && t->tm_hour == 12)
t->tm_hour = 0;
else if ((tod_2000.hour1 & TOD2000_HOUR1_PM) && t->tm_hour != 12)
t->tm_hour += 12;
}
} else {
tod_2000.second1 = t->tm_sec / 10;
tod_2000.second2 = t->tm_sec % 10;
tod_2000.minute1 = t->tm_min / 10;
tod_2000.minute2 = t->tm_min % 10;
if (tod_2000.cntrl3 & TOD2000_CNTRL3_24HMODE)
tod_2000.hour1 = t->tm_hour / 10;
else if (t->tm_hour >= 12)
tod_2000.hour1 = TOD2000_HOUR1_PM +
(t->tm_hour - 12) / 10;
else
tod_2000.hour1 = t->tm_hour / 10;
tod_2000.hour2 = t->tm_hour % 10;
tod_2000.day1 = t->tm_mday / 10;
tod_2000.day2 = t->tm_mday % 10;
if (t->tm_wday != -1)
tod_2000.weekday = t->tm_wday;
tod_2000.month1 = (t->tm_mon + 1) / 10;
tod_2000.month2 = (t->tm_mon + 1) % 10;
if (t->tm_year >= 100)
t->tm_year -= 100;
tod_2000.year1 = t->tm_year / 10;
tod_2000.year2 = t->tm_year % 10;
}
tod_2000.cntrl1 &= ~TOD2000_CNTRL1_HOLD;
return 0;
}
static int amiga_set_clock_mmss(unsigned long nowtime)
{
short real_seconds = nowtime % 60, real_minutes = (nowtime / 60) % 60;
if (AMIGAHW_PRESENT(A3000_CLK)) {
tod_3000.cntrl1 = TOD3000_CNTRL1_HOLD;
tod_3000.second1 = real_seconds / 10;
tod_3000.second2 = real_seconds % 10;
tod_3000.minute1 = real_minutes / 10;
tod_3000.minute2 = real_minutes % 10;
tod_3000.cntrl1 = TOD3000_CNTRL1_FREE;
} else /* if (AMIGAHW_PRESENT(A2000_CLK)) */ {
int cnt = 5;
tod_2000.cntrl1 |= TOD2000_CNTRL1_HOLD;
while ((tod_2000.cntrl1 & TOD2000_CNTRL1_BUSY) && cnt--) {
tod_2000.cntrl1 &= ~TOD2000_CNTRL1_HOLD;
udelay(70);
tod_2000.cntrl1 |= TOD2000_CNTRL1_HOLD;
}
if (!cnt)
printk(KERN_INFO "set_clock_mmss: timed out waiting for RTC (0x%x)\n", tod_2000.cntrl1);
tod_2000.second1 = real_seconds / 10;
tod_2000.second2 = real_seconds % 10;
tod_2000.minute1 = real_minutes / 10;
tod_2000.minute2 = real_minutes % 10;
tod_2000.cntrl1 &= ~TOD2000_CNTRL1_HOLD;
}
return 0;
}
static unsigned int amiga_get_ss(void)
{
unsigned int s;
if (AMIGAHW_PRESENT(A3000_CLK)) {
tod_3000.cntrl1 = TOD3000_CNTRL1_HOLD;
s = tod_3000.second1 * 10 + tod_3000.second2;
tod_3000.cntrl1 = TOD3000_CNTRL1_FREE;
} else /* if (AMIGAHW_PRESENT(A2000_CLK)) */ {
s = tod_2000.second1 * 10 + tod_2000.second2;
}
return s;
}
static NORET_TYPE void amiga_reset(void)
ATTRIB_NORET;
static void amiga_reset(void)
{
unsigned long jmp_addr040 = virt_to_phys(&&jmp_addr_label040);
unsigned long jmp_addr = virt_to_phys(&&jmp_addr_label);
local_irq_disable();
if (CPU_IS_040_OR_060)
/* Setup transparent translation registers for mapping
* of 16 MB kernel segment before disabling translation
*/
asm volatile ("\n"
" move.l %0,%%d0\n"
" and.l #0xff000000,%%d0\n"
" or.w #0xe020,%%d0\n" /* map 16 MB, enable, cacheable */
" .chip 68040\n"
" movec %%d0,%%itt0\n"
" movec %%d0,%%dtt0\n"
" .chip 68k\n"
" jmp %0@\n"
: /* no outputs */
: "a" (jmp_addr040)
: "d0");
else
/* for 680[23]0, just disable translation and jump to the physical
* address of the label
*/
asm volatile ("\n"
" pmove %%tc,%@\n"
" bclr #7,%@\n"
" pmove %@,%%tc\n"
" jmp %0@\n"
: /* no outputs */
: "a" (jmp_addr));
jmp_addr_label040:
/* disable translation on '040 now */
asm volatile ("\n"
" moveq #0,%%d0\n"
" .chip 68040\n"
" movec %%d0,%%tc\n" /* disable MMU */
" .chip 68k\n"
: /* no outputs */
: /* no inputs */
: "d0");
jmp_addr_label:
/* pickup reset address from AmigaOS ROM, reset devices and jump
* to reset address
*/
asm volatile ("\n"
" move.w #0x2700,%sr\n"
" lea 0x01000000,%a0\n"
" sub.l %a0@(-0x14),%a0\n"
" move.l %a0@(4),%a0\n"
" subq.l #2,%a0\n"
" jra 1f\n"
/* align on a longword boundary */
" " __ALIGN_STR "\n"
"1:\n"
" reset\n"
" jmp %a0@");
for (;;)
;
}
/*
* Debugging
*/
#define SAVEKMSG_MAXMEM 128*1024
#define SAVEKMSG_MAGIC1 0x53415645 /* 'SAVE' */
#define SAVEKMSG_MAGIC2 0x4B4D5347 /* 'KMSG' */
struct savekmsg {
unsigned long magic1; /* SAVEKMSG_MAGIC1 */
unsigned long magic2; /* SAVEKMSG_MAGIC2 */
unsigned long magicptr; /* address of magic1 */
unsigned long size;
char data[0];
};
static struct savekmsg *savekmsg;
static void amiga_mem_console_write(struct console *co, const char *s,
unsigned int count)
{
if (savekmsg->size + count <= SAVEKMSG_MAXMEM-sizeof(struct savekmsg)) {
memcpy(savekmsg->data + savekmsg->size, s, count);
savekmsg->size += count;
}
}
static int __init amiga_savekmsg_setup(char *arg)
{
static struct resource debug_res = { .name = "Debug" };
if (!MACH_IS_AMIGA || strcmp(arg, "mem"))
goto done;
if (!AMIGAHW_PRESENT(CHIP_RAM)) {
printk("Warning: no chipram present for debugging\n");
goto done;
}
savekmsg = amiga_chip_alloc_res(SAVEKMSG_MAXMEM, &debug_res);
savekmsg->magic1 = SAVEKMSG_MAGIC1;
savekmsg->magic2 = SAVEKMSG_MAGIC2;
savekmsg->magicptr = ZTWO_PADDR(savekmsg);
savekmsg->size = 0;
amiga_console_driver.write = amiga_mem_console_write;
register_console(&amiga_console_driver);
done:
return 0;
}
early_param("debug", amiga_savekmsg_setup);
static void amiga_serial_putc(char c)
{
amiga_custom.serdat = (unsigned char)c | 0x100;
while (!(amiga_custom.serdatr & 0x2000))
;
}
void amiga_serial_console_write(struct console *co, const char *s,
unsigned int count)
{
while (count--) {
if (*s == '\n')
amiga_serial_putc('\r');
amiga_serial_putc(*s++);
}
}
#ifdef CONFIG_SERIAL_CONSOLE
void amiga_serial_puts(const char *s)
{
amiga_serial_console_write(NULL, s, strlen(s));
}
int amiga_serial_console_wait_key(struct console *co)
{
int ch;
while (!(amiga_custom.intreqr & IF_RBF))
barrier();
ch = amiga_custom.serdatr & 0xff;
/* clear the interrupt, so that another character can be read */
amiga_custom.intreq = IF_RBF;
return ch;
}
void amiga_serial_gets(struct console *co, char *s, int len)
{
int ch, cnt = 0;
while (1) {
ch = amiga_serial_console_wait_key(co);
/* Check for backspace. */
if (ch == 8 || ch == 127) {
if (cnt == 0) {
amiga_serial_putc('\007');
continue;
}
cnt--;
amiga_serial_puts("\010 \010");
continue;
}
/* Check for enter. */
if (ch == 10 || ch == 13)
break;
/* See if line is too long. */
if (cnt >= len + 1) {
amiga_serial_putc(7);
cnt--;
continue;
}
/* Store and echo character. */
s[cnt++] = ch;
amiga_serial_putc(ch);
}
/* Print enter. */
amiga_serial_puts("\r\n");
s[cnt] = 0;
}
#endif
static int __init amiga_debug_setup(char *arg)
{
if (MACH_IS_AMIGA && !strcmp(arg, "ser")) {
/* no initialization required (?) */
amiga_console_driver.write = amiga_serial_console_write;
register_console(&amiga_console_driver);
}
return 0;
}
early_param("debug", amiga_debug_setup);
#ifdef CONFIG_HEARTBEAT
static void amiga_heartbeat(int on)
{
if (on)
ciaa.pra &= ~2;
else
ciaa.pra |= 2;
}
#endif
/*
* Amiga specific parts of /proc
*/
static void amiga_get_model(char *model)
{
strcpy(model, amiga_model_name);
}
static int amiga_get_hardware_list(char *buffer)
{
int len = 0;
if (AMIGAHW_PRESENT(CHIP_RAM))
len += sprintf(buffer+len, "Chip RAM:\t%ldK\n", amiga_chip_size>>10);
len += sprintf(buffer+len, "PS Freq:\t%dHz\nEClock Freq:\t%ldHz\n",
amiga_psfreq, amiga_eclock);
if (AMIGAHW_PRESENT(AMI_VIDEO)) {
char *type;
switch (amiga_chipset) {
case CS_OCS:
type = "OCS";
break;
case CS_ECS:
type = "ECS";
break;
case CS_AGA:
type = "AGA";
break;
default:
type = "Old or Unknown";
break;
}
len += sprintf(buffer+len, "Graphics:\t%s\n", type);
}
#define AMIGAHW_ANNOUNCE(name, str) \
if (AMIGAHW_PRESENT(name)) \
len += sprintf (buffer+len, "\t%s\n", str)
len += sprintf (buffer + len, "Detected hardware:\n");
AMIGAHW_ANNOUNCE(AMI_VIDEO, "Amiga Video");
AMIGAHW_ANNOUNCE(AMI_BLITTER, "Blitter");
AMIGAHW_ANNOUNCE(AMBER_FF, "Amber Flicker Fixer");
AMIGAHW_ANNOUNCE(AMI_AUDIO, "Amiga Audio");
AMIGAHW_ANNOUNCE(AMI_FLOPPY, "Floppy Controller");
AMIGAHW_ANNOUNCE(A3000_SCSI, "SCSI Controller WD33C93 (A3000 style)");
AMIGAHW_ANNOUNCE(A4000_SCSI, "SCSI Controller NCR53C710 (A4000T style)");
AMIGAHW_ANNOUNCE(A1200_IDE, "IDE Interface (A1200 style)");
AMIGAHW_ANNOUNCE(A4000_IDE, "IDE Interface (A4000 style)");
AMIGAHW_ANNOUNCE(CD_ROM, "Internal CD ROM drive");
AMIGAHW_ANNOUNCE(AMI_KEYBOARD, "Keyboard");
AMIGAHW_ANNOUNCE(AMI_MOUSE, "Mouse Port");
AMIGAHW_ANNOUNCE(AMI_SERIAL, "Serial Port");
AMIGAHW_ANNOUNCE(AMI_PARALLEL, "Parallel Port");
AMIGAHW_ANNOUNCE(A2000_CLK, "Hardware Clock (A2000 style)");
AMIGAHW_ANNOUNCE(A3000_CLK, "Hardware Clock (A3000 style)");
AMIGAHW_ANNOUNCE(CHIP_RAM, "Chip RAM");
AMIGAHW_ANNOUNCE(PAULA, "Paula 8364");
AMIGAHW_ANNOUNCE(DENISE, "Denise 8362");
AMIGAHW_ANNOUNCE(DENISE_HR, "Denise 8373");
AMIGAHW_ANNOUNCE(LISA, "Lisa 8375");
AMIGAHW_ANNOUNCE(AGNUS_PAL, "Normal/Fat PAL Agnus 8367/8371");
AMIGAHW_ANNOUNCE(AGNUS_NTSC, "Normal/Fat NTSC Agnus 8361/8370");
AMIGAHW_ANNOUNCE(AGNUS_HR_PAL, "Fat Hires PAL Agnus 8372");
AMIGAHW_ANNOUNCE(AGNUS_HR_NTSC, "Fat Hires NTSC Agnus 8372");
AMIGAHW_ANNOUNCE(ALICE_PAL, "PAL Alice 8374");
AMIGAHW_ANNOUNCE(ALICE_NTSC, "NTSC Alice 8374");
AMIGAHW_ANNOUNCE(MAGIC_REKICK, "Magic Hard Rekick");
AMIGAHW_ANNOUNCE(PCMCIA, "PCMCIA Slot");
#ifdef CONFIG_ZORRO
if (AMIGAHW_PRESENT(ZORRO))
len += sprintf(buffer+len, "\tZorro II%s AutoConfig: %d Expansion "
"Device%s\n",
AMIGAHW_PRESENT(ZORRO3) ? "I" : "",
zorro_num_autocon, zorro_num_autocon == 1 ? "" : "s");
#endif /* CONFIG_ZORRO */
#undef AMIGAHW_ANNOUNCE
return len;
}
