int kernelStart(struct multiboot_info *mboot_ptr){
kprintf("\n\n\n\n\n\n HW init ...\n");
init_descriptor_tables();
kprintf("\t\t IDT/GDT initialised...\n");
init_sysClock(100);
kprintf("\t\t CMOS timer initialised to 100hz...\n");
u32int memsize = (mboot_ptr->mem_lower + mboot_ptr->mem_upper) * 1024;
init_heap(end_address + 0x1000, memsize - end_address - 0x1000);
//kprintf("\t\t end_address: %d \n", end_address);
kprintf("\t\t Heap initialised...\n");
init_keyboard();
kprintf("\t\t PS/2 keyboard initialised...\n");
init_system_timer();
kprintf("\t\t timer initialised...\n");
init_application();
kprintf("\t\t application initialised...\n");
enableInterrupt();
while(1){}
return 0;
}
int
start_linux(void)
{
void (*theKernel)(uint32_t zero, uint32_t arch, uint32_t *params);
uint32_t i = 0, j = 0,ret;
load_addr = (uint32_t) ZIMAGE_LOAD_ADDRESS;
uint32_t *exec_at = ZIMAGE_LOAD_ADDRESS;
uint32_t *parm_at = (uint32_t *)( DRAM_BASE + 0x100) ; // 256 bytes away from the base address of DRAM
uint32_t machine_type;
// debug_print("about to copy linux image to load address: ");
// uart_print_address(exec_at);
// ret = load_image((uint32_t)ZIMAGE_START_BLOCK_NUMBER,(uint32_t*)exec_at,(uint16_t)2666); /* copy image into RAM */
// debug_print("done copying linux image ...\n\r");
// debug_print("about to copy ramdisk image ...");
// load_image((uint32_t*) INITRD_LOAD_ADDRESS, INITRD_LOAD_END_ADDRESS);/* copy initial ramdisk image into RAM */
// debug_print("done copying ramdisk image ...");
theKernel = (void (*)(uint32_t, uint32_t, uint32_t*))exec_at; /* set the kernel address */
print_format("Setting up timers next ...\n\r");
init_system_timer();
init_timer();
// uint32_t start_time = get_timer(0);
//
// while(1){
// print_format("time difference in ms is %d\n\r",start_time - get_timer(0));
// udelay(1000000);
// }
print_format("fetching kernel ... \n\r");
net_loop(TFTPGET);
// net_loop(ARP);
print_format("kernel loaded to RAM ...\n\r");
debug_print("setting up ATAGS ...\n\r");
setup_tags(parm_at); /* sets up parameters */
machine_type = 3466; /* get machine type */
debug_print("jumping to the kernel ... brace yourself!\n\r\0");
asm("mrc p15, 0, r1, c1, c0, 0"); /* Read Control Register configuration data*/
asm("bic r1, r1, #(0x1 << 12)"); /* Disable I Cache*/
asm("bic r1, r1, #(0x1 << 2)"); /* Disable D Cache*/
asm("mcr p15, 0, r1, c1, c0, 0"); /* Write Control Register configuration data*/
theKernel(0, machine_type, parm_at); /* jump to kernel with registers set */
// uint32_t start_time = get_timer(0);
// while(1){
// print_format("time difference in ms is %d\n\r",get_timer(start_time));
// udelay(1000000);
// }
return 0;
}
static void bios_init(void)
{
KDEBUG(("bios_init()\n"));
/* initialize Native Features, if available
* do it as soon as possible so that kprintf can make use of them
*/
#if DETECT_NATIVE_FEATURES
KDEBUG(("natfeat_init()\n"));
natfeat_init();
#endif
#if STONX_NATIVE_PRINT
KDEBUG(("stonx_kprintf_init()\n"));
stonx_kprintf_init();
#endif
#if CONF_WITH_UAE
KDEBUG(("amiga_uaelib_init()\n"));
amiga_uaelib_init();
#endif
/* Initialize the processor */
KDEBUG(("processor_init()\n"));
processor_init(); /* Set CPU type, longframe and FPU type */
KDEBUG(("vecs_init()\n"));
vecs_init(); /* setup all exception vectors (above) */
KDEBUG(("init_delay()\n"));
init_delay(); /* set 'reasonable' default values for delay */
/* Detect optional hardware (video, sound, etc.) */
KDEBUG(("machine_detect()\n"));
machine_detect(); /* detect hardware */
KDEBUG(("machine_init()\n"));
machine_init(); /* initialise machine-specific stuff */
/* Initialize the screen */
KDEBUG(("screen_init()\n"));
screen_init(); /* detect monitor type, ... */
/* Initialize the BIOS memory management */
KDEBUG(("bmem_init()\n"));
bmem_init(); /* this must be done after screen_init() */
KDEBUG(("cookie_init()\n"));
cookie_init(); /* sets a cookie jar */
KDEBUG(("fill_cookie_jar()\n"));
fill_cookie_jar(); /* detect hardware features and fill the cookie jar */
/* Set up the BIOS console output */
KDEBUG(("linea_init()\n"));
linea_init(); /* initialize screen related line-a variables */
font_init(); /* initialize font ring (requires cookie_akp) */
font_set_default(-1);/* set default font */
vt52_init(); /* initialize the vt52 console */
/* Now kcprintf() will also send debug info to the screen */
KDEBUG(("after vt52_init()\n"));
/* misc. variables */
dumpflg = -1;
sysbase = (LONG) os_entry;
savptr = (LONG) trap_save_area;
etv_timer = (void(*)(int)) just_rts;
etv_critic = default_etv_critic;
etv_term = just_rts;
/* setup VBL queue */
nvbls = 8;
vblqueue = vbl_list;
{
int i;
for(i = 0 ; i < 8 ; i++) {
vbl_list[i] = 0;
}
}
#if CONF_WITH_MFP
KDEBUG(("mfp_init()\n"));
mfp_init();
#endif
#if CONF_WITH_TT_MFP
if (has_tt_mfp)
{
KDEBUG(("tt_mfp_init()\n"));
tt_mfp_init();
}
#endif
/* Initialize the system 200 Hz timer */
KDEBUG(("init_system_timer()\n"));
init_system_timer();
/* Initialize the RS-232 port(s) */
KDEBUG(("chardev_init()\n"));
chardev_init(); /* Initialize low-memory bios vectors */
boot_status |= CHARDEV_AVAILABLE; /* track progress */
KDEBUG(("init_serport()\n"));
init_serport();
boot_status |= RS232_AVAILABLE; /* track progress */
#if CONF_WITH_SCC
if (has_scc)
boot_status |= SCC_AVAILABLE; /* track progress */
#endif
/* The sound init must be done before allowing MFC interrupts,
* because of dosound stuff in the timer C interrupt routine.
*/
#if CONF_WITH_DMASOUND
KDEBUG(("dmasound_init()\n"));
dmasound_init();
#endif
KDEBUG(("snd_init()\n"));
snd_init(); /* Reset Soundchip, deselect floppies */
/* Init the two ACIA devices (MIDI and KBD). The three actions below can
* be done in any order provided they happen before allowing MFP
* interrupts.
*/
KDEBUG(("kbd_init()\n"));
kbd_init(); /* init keyboard, disable mouse and joystick */
KDEBUG(("midi_init()\n"));
midi_init(); /* init MIDI acia so that kbd acia irq works */
KDEBUG(("init_acia_vecs()\n"));
init_acia_vecs(); /* Init the ACIA interrupt vector and related stuff */
KDEBUG(("after init_acia_vecs()\n"));
boot_status |= MIDI_AVAILABLE; /* track progress */
/* Now we can enable the interrupts.
* We need a timer for DMA timeouts in floppy and harddisk initialisation.
* The VBL processing will be enabled later with the vblsem semaphore.
*/
#if CONF_WITH_ATARI_VIDEO
/* Keep the HBL disabled */
set_sr(0x2300);
#else
set_sr(0x2000);
#endif
KDEBUG(("calibrate_delay()\n"));
calibrate_delay(); /* determine values for delay() function */
/* - requires interrupts to be enabled */
KDEBUG(("blkdev_init()\n"));
blkdev_init(); /* floppy and harddisk initialisation */
KDEBUG(("after blkdev_init()\n"));
/* initialize BIOS components */
KDEBUG(("parport_init()\n"));
parport_init(); /* parallel port */
//mouse_init(); /* init mouse driver */
KDEBUG(("clock_init()\n"));
clock_init(); /* init clock */
KDEBUG(("after clock_init()\n"));
#if CONF_WITH_NLS
KDEBUG(("nls_init()\n"));
nls_init(); /* init native language support */
nls_set_lang(get_lang_name());
#endif
/* set start of user interface */
#if WITH_AES
exec_os = ui_start;
#elif WITH_CLI
exec_os = coma_start;
#else
exec_os = NULL;
#endif
KDEBUG(("osinit()\n"));
osinit(); /* initialize BDOS */
KDEBUG(("after osinit()\n"));
boot_status |= DOS_AVAILABLE; /* track progress */
/* Enable VBL processing */
vblsem = 1;
#if CONF_WITH_CARTRIDGE
{
WORD save_hz = v_hz_rez, save_vt = v_vt_rez, save_pl = v_planes;
/* Run all boot applications from the application cartridge.
* Beware: Hatari features a special cartridge which is used
* for GEMDOS drive emulation. It will hack drvbits and hook Pexec().
* It will also hack Line A variables to enable extended VDI video modes.
*/
KDEBUG(("run_cartridge_applications(3)\n"));
run_cartridge_applications(3); /* Type "Execute prior to bootdisk" */
KDEBUG(("after run_cartridge_applications()\n"));
if ((v_hz_rez != save_hz) || (v_vt_rez != save_vt) || (v_planes != save_pl))
{
set_rez_hacked();
font_set_default(-1); /* set default font */
vt52_init(); /* initialize the vt52 console */
}
}
#endif
#if CONF_WITH_ALT_RAM
#if CONF_WITH_FASTRAM
/* add TT-RAM that was detected in memory.S */
if (ramtop != NULL)
{
KDEBUG(("xmaddalt()\n"));
xmaddalt(FASTRAM_START, ramtop - FASTRAM_START);
}
#endif
#if CONF_WITH_MONSTER
/* Add MonSTer alt-RAM detected in machine.c */
if (has_monster)
{
/* Dummy read from MonSTer register to initiate write sequence. */
unsigned short monster_reg = *(volatile unsigned short *)MONSTER_REG;
/* Only enable 6Mb when on a Mega STE due to address conflict with
VME bus. Todo: This should be made configurable. */
if (has_vme)
monster_reg = 6;
else
monster_reg = 8;
/* Register write sequence: read - write - write */
*(volatile unsigned short *)MONSTER_REG = monster_reg;
*(volatile unsigned short *)MONSTER_REG = monster_reg;
KDEBUG(("xmaddalt()\n"));
xmaddalt((UBYTE *)0x400000L, monster_reg*0x100000L);
}
#endif
#ifdef MACHINE_AMIGA
KDEBUG(("amiga_add_alt_ram()\n"));
amiga_add_alt_ram();
#endif
#endif /* CONF_WITH_ALT_RAM */
KDEBUG(("bios_init() end\n"));
}
