/*
* Copyright (C) 2005 Martin Decky
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* - The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "main.h"
#include <printf.h>
#include "asm.h"
#include "_components.h"
#include <balloc.h>
#include <ofw.h>
#include <ofw_tree.h>
#include "ofwarch.h"
#include <align.h>
#define KERNEL_VIRTUAL_ADDRESS 0x400000
bootinfo_t bootinfo;
void bootstrap(void)
{
printf("HelenOS SPARC64 Bootloader\n");
component_t components[COMPONENTS];
init_components(components);
if (!ofw_memmap(&bootinfo.memmap)) {
printf("Error: unable to get memory map, halting.\n"); halt();
}
if (bootinfo.memmap.total == 0) {
printf("Error: no memory detected, halting.\n"); halt();
}
if (!ofw_screen(&bootinfo.screen)) {
printf("Error: unable to get screen properties, halting.\n"); halt();
}
bootinfo.screen.addr = ofw_translate(bootinfo.screen.addr);
/* transform scanline to bytes with respect to potential alignment */
bootinfo.screen.scanline = bootinfo.screen.scanline*bpp2align[bootinfo.screen.bpp >> 3];
if (!ofw_cpu(&bootinfo.cpu))
printf("Error: unable to get cpu properties\n");
printf("\nDevice statistics\n"); printf(" cpu: %dMHz\n", bootinfo.
cpu.
clock_frequency/1000000); printf(" memory: %dM\n", bootinfo.
memmap.
total>>20); printf(" screen at %P, resolution %dx%d, %d bpp (scanline %d bytes)\n", (uintptr_t) bootinfo.
screen.
addr, bootinfo.
screen.
width, bootinfo.
screen.
height, bootinfo.
screen.
bpp, bootinfo.
screen.
scanline);
printf("\nMemory statistics\n"); printf(" kernel entry point at %P\n", KERNEL_VIRTUAL_ADDRESS
); printf(" %P: boot info structure\n", &bootinfo
);
unsigned int i;
for (i = 0; i < COMPONENTS; i++)
printf(" %P: %s image (size %d bytes)\n", components
[i
].
start, components
[i
].
name, components
[i
].
size);
void * base = (void *) KERNEL_VIRTUAL_ADDRESS;
unsigned int top = 0;
printf("\nCopying components\n"); bootinfo.taskmap.count = 0;
for (i = 0; i < COMPONENTS; i++) {
printf(" %s...", components
[i
].
name); top = ALIGN_UP(top, PAGE_SIZE);
memcpy(base
+ top
, components
[i
].
start, components
[i
].
size); if (i > 0) {
bootinfo.taskmap.tasks[bootinfo.taskmap.count].addr = base + top;
bootinfo.taskmap.tasks[bootinfo.taskmap.count].size = components[i].size;
bootinfo.taskmap.count++;
}
top += components[i].size;
}
balloc_init(&bootinfo.ballocs, ALIGN_UP(((uintptr_t) base) + top, PAGE_SIZE));
printf("\nCanonizing OpenFirmware device tree..."); bootinfo.ofw_root = ofw_tree_build();
printf("\nBooting the kernel...\n"); jump_to_kernel((void *) KERNEL_VIRTUAL_ADDRESS, &bootinfo, sizeof(bootinfo));
}