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Test all MMU types, more processor type specific code
This commit is contained in:
Laurent Vivier
parent
1e2b50db64
commit
b990716081
143
second/main.c
143
second/main.c
@ -13,7 +13,12 @@
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#include "bank.h"
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#include "memory.h"
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#include "uncompress.h"
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#ifdef ARCH_M68K
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#include "bootinfo.h"
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#endif
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#ifdef ARCH_PPC
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#include "bootx.h"
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#endif
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#include "arch.h"
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#include "misc.h"
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#include "glue.h"
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@ -35,7 +40,6 @@ extern void MMU040_disable_cache(void);
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#ifdef ARCH_PPC
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extern void enter_kernelPPC(unsigned long addr, unsigned long size, unsigned long dest);
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extern char end_enter_kernelPPC;
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extern void PPC_disable_cache(void);
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#endif
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#define PAGE_SHIFT 12
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@ -50,7 +54,9 @@ int start(emile_l2_header_t* info)
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char * kernel;
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unsigned long physImage;
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entry_t entry;
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#ifdef ARCH_M68K
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disable_cache_t disable_cache;
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#endif
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int ret;
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unsigned long start_mem;
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unsigned long aligned_size;
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@ -93,23 +99,38 @@ int start(emile_l2_header_t* info)
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/* where is mapped my boot function ? */
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#ifdef ARCH_M68K
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if (mmu_type == gestalt68040MMU)
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if (arch_type == gestalt68k)
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{
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enter_kernel = (unsigned long)enter_kernel040;
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end_enter_kernel = (unsigned long)&end_enter_kernel040;
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disable_cache = MMU040_disable_cache;
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}
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else
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{
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enter_kernel = (unsigned long)enter_kernel030;
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end_enter_kernel = (unsigned long)&end_enter_kernel030;
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disable_cache = MMU030_disable_cache;
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if (mmu_type == gestalt68040MMU)
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{
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enter_kernel = (unsigned long)enter_kernel040;
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end_enter_kernel = (unsigned long)&end_enter_kernel040;
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disable_cache = MMU040_disable_cache;
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}
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else if (mmu_type == gestalt68030MMU)
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{
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enter_kernel = (unsigned long)enter_kernel030;
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end_enter_kernel = (unsigned long)&end_enter_kernel030;
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disable_cache = MMU030_disable_cache;
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}
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else if (mmu_type == gestalt68851)
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{
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error("MMU 68851 is not supported");
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}
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else if (mmu_type == gestaltNoMMU)
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{
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error("CPU without MMU is not supported");
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}
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else
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error("Unknown MMU");
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}
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#endif
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#ifdef ARCH_PPC
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enter_kernel = (unsigned long)enter_kernelPPC;
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end_enter_kernel = (unsigned long)&end_enter_kernelPPC;
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disable_cache = PPC_disable_cache;
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if (arch_type == gestaltPowerPC)
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{
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enter_kernel = (unsigned long)enter_kernelPPC;
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end_enter_kernel = (unsigned long)&end_enter_kernelPPC;
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}
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#endif
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/* load kernel */
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@ -219,54 +240,68 @@ int start(emile_l2_header_t* info)
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printf("no RAMDISK\n");
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}
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#ifdef ARCH_M68K
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ret = logical2physical((unsigned long)kernel, &physImage);
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/* disable and flush cache */
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disable_cache();
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/* initialize bootinfo structure */
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bootinfo_init(info->command_line,
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(char*)ramdisk_start, info->ramdisk_size);
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/* compute final address of kernel */
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aligned_size = boot_info.memory[0].addr & (KERNEL_ALIGN - 1);
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if ( aligned_size > 0 )
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if (arch_type == gestalt68k)
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{
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aligned_size = KERNEL_ALIGN - aligned_size;
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aligned_addr = boot_info.memory[0].addr + aligned_size;
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aligned_size = boot_info.memory[0].size - aligned_size;
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boot_info.memory[0].addr = aligned_addr;
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boot_info.memory[0].size = aligned_size;
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/* disable and flush cache */
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disable_cache();
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/* initialize bootinfo structure */
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bootinfo_init(info->command_line,
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(char*)ramdisk_start, info->ramdisk_size);
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/* compute final address of kernel */
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aligned_size = boot_info.memory[0].addr & (KERNEL_ALIGN - 1);
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if ( aligned_size > 0 )
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{
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aligned_size = KERNEL_ALIGN - aligned_size;
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aligned_addr = boot_info.memory[0].addr + aligned_size;
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aligned_size = boot_info.memory[0].size - aligned_size;
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boot_info.memory[0].addr = aligned_addr;
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boot_info.memory[0].size = aligned_size;
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}
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/* set bootinfo at end of kernel image */
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set_kernel_bootinfo(kernel + uncompressed_size);
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start_mem = boot_info.memory[0].addr + PAGE_SIZE;
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ret = logical2physical(enter_kernel, (unsigned long*)&entry);
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if ( (ret == 0) && (enter_kernel != (unsigned long)entry) )
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{
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unsigned long logi;
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unsigned long size = end_enter_kernel - enter_kernel;
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logi = vga_get_video();
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ret = logical2physical(logi, (unsigned long*)&entry);
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memcpy((char*)logi, (char*)enter_kernel, size);
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memcpy((char*)entry, (char*)enter_kernel, size);
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}
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}
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/* set bootinfo at end of kernel image */
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set_kernel_bootinfo(kernel + uncompressed_size);
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start_mem = boot_info.memory[0].addr + PAGE_SIZE;
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#endif /* ARCH_M68K */
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#ifdef ARCH_PPC
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if (arch_type == gestaltPowerPC)
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{
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bootx_init(info->command_line,
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(char*)ramdisk_start, info->ramdisk_size);
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physImage = kernel;
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start_mem = 0x200000;
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}
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#endif
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printf("\n");
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printf("Physical address of kernel will be 0x%08lx\n", start_mem);
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printf("Physical address of kernel will be 0x%08lx\n",
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start_mem);
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printf("Ok, booting the kernel.\n");
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ret = logical2physical(enter_kernel, (unsigned long*)&entry);
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if ( (ret == 0) && (enter_kernel != (unsigned long)entry) )
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{
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unsigned long logi;
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unsigned long size = end_enter_kernel - enter_kernel;
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logi = vga_get_video();
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ret = logical2physical(logi, (unsigned long*)&entry);
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memcpy((char*)logi, (char*)enter_kernel, size);
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memcpy((char*)entry, (char*)enter_kernel, size);
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}
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/* disable interrupt */
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asm("ori.w #0x0700,%sr");
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