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Add 68000-based macintosh support: load kernel at address 0x4000

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This commit is contained in:
Laurent Vivier 2005-06-14 19:39:43 +00:00
parent 6b501d489e
commit 4ddcf438d9
1 changed files with 53 additions and 36 deletions
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89
second/main.c
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@ -256,56 +256,73 @@ int start(emile_l2_header_t* info)
#ifdef ARCH_M68K
if (arch_type == gestalt68k)
{
ret = logical2physical((unsigned long)kernel, &physImage);
/* disable and flush cache */
disable_cache();
/* initialize bootinfo structure */
bootinfo_init(info->command_line,
(char*)ramdisk_start, info->ramdisk_size);
/* compute final address of kernel */
/* add KERNEL_ALIGN if we have to align */
aligned_size = boot_info.memory[0].addr & (KERNEL_ALIGN - 1);
if ( aligned_size > 0 )
{
aligned_size = KERNEL_ALIGN - aligned_size;
aligned_addr = boot_info.memory[0].addr + aligned_size;
aligned_size = boot_info.memory[0].size - aligned_size;
boot_info.memory[0].addr = aligned_addr;
boot_info.memory[0].size = aligned_size;
}
/* set bootinfo at end of kernel image */
set_kernel_bootinfo(kernel + info->kernel_size);
start_mem = boot_info.memory[0].addr + PAGE_SIZE;
/* compute final address of kernel */
printf("\n");
printf("Physical address of kernel will be 0x%08lx\n",
start_mem);
printf("Ok, booting the kernel.\n");
ret = logical2physical(enter_kernel, &physical);
entry = (entry_t)physical;
if ( (ret == 0) && (enter_kernel != (unsigned long)entry) )
if (mmu_type == gestaltNoMMU)
{
unsigned long logi;
unsigned long size = end_enter_kernel - enter_kernel;
logi = vga_get_video();
ret = logical2physical(logi, &physical);
entry = (entry_t)physical;
start_mem = 0x4000;
entry = (entry_t)(start_mem - size);
printf("\n");
printf("Physical address of kernel will be 0x%08lx\n",
start_mem);
printf("Ok, booting the kernel.\n");
memcpy(entry, (char*)enter_kernel, size);
}
else
{
ret = logical2physical((unsigned long)kernel, &physImage);
memcpy((char*)logi, (char*)enter_kernel, size);
memcpy((char*)entry, (char*)enter_kernel, size);
/* disable and flush cache */
disable_cache();
/* add KERNEL_ALIGN if we have to align */
aligned_size = boot_info.memory[0].addr & (KERNEL_ALIGN - 1);
if ( aligned_size > 0 )
{
aligned_size = KERNEL_ALIGN - aligned_size;
aligned_addr = boot_info.memory[0].addr + aligned_size;
aligned_size = boot_info.memory[0].size - aligned_size;
boot_info.memory[0].addr = aligned_addr;
boot_info.memory[0].size = aligned_size;
}
start_mem = boot_info.memory[0].addr + PAGE_SIZE;
printf("\n");
printf("Physical address of kernel will be 0x%08lx\n",
start_mem);
printf("Ok, booting the kernel.\n");
ret = logical2physical(enter_kernel, &physical);
entry = (entry_t)physical;
if ( (ret == 0) && (enter_kernel != (unsigned long)entry) )
{
unsigned long logi;
unsigned long size = end_enter_kernel - enter_kernel;
logi = vga_get_video();
ret = logical2physical(logi, &physical);
entry = (entry_t)physical;
memcpy((char*)logi, (char*)enter_kernel, size);
memcpy((char*)entry, (char*)enter_kernel, size);
}
}
}
else