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Add FCode boot loader for Solaris etc.

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git-svn-id: svn://coreboot.org/openbios/openbios-devel@213 f158a5a8-5612-0410-a976-696ce0be7e32
This commit is contained in:
Blue Swirl
2008-07-21 07:50:53 +00:00
parent e411de92d3
commit b9f972feeb
4 changed files with 93 additions and 7 deletions
Download Patch File Download Diff File Expand all files Collapse all files

21
arch/sparc64/boot.c
View File

@@ -68,15 +68,22 @@ void boot(void)
if (elf_load(&sys_info, path, param) == LOADER_NOT_SUPPORT)
if (linux_load(&sys_info, path, param) == LOADER_NOT_SUPPORT)
if (aout_load(&sys_info, path, param) == LOADER_NOT_SUPPORT) {
if (aout_load(&sys_info, path, param) == LOADER_NOT_SUPPORT)
if (fcode_load(&sys_info, path, param)
== LOADER_NOT_SUPPORT) {
sprintf(altpath, "%s:d", path);
sprintf(altpath, "%s:d", path);
if (elf_load(&sys_info, altpath, param) == LOADER_NOT_SUPPORT)
if (linux_load(&sys_info, altpath, param) == LOADER_NOT_SUPPORT)
if (aout_load(&sys_info, altpath, param) == LOADER_NOT_SUPPORT)
printk("Unsupported image format\n");
}
if (elf_load(&sys_info, altpath, param)
== LOADER_NOT_SUPPORT)
if (linux_load(&sys_info, altpath, param)
== LOADER_NOT_SUPPORT)
if (aout_load(&sys_info, altpath, param)
== LOADER_NOT_SUPPORT)
if (fcode_load(&sys_info, path, param)
== LOADER_NOT_SUPPORT)
printk("Unsupported image format\n");
}
free(path);
}

2
arch/sparc64/boot.h
View File

@@ -10,6 +10,8 @@ int forth_load(struct sys_info *info, const char *filename, const char *cmdline)
int elf_load(struct sys_info *info, const char *filename, const char *cmdline);
int linux_load(struct sys_info *info, const char *file, const char *cmdline);
int aout_load(struct sys_info *info, const char *filename, const char *cmdline);
int fcode_load(struct sys_info *info, const char *filename,
const char *cmdline);
uint64_t start_elf(uint64_t entry_point, uint64_t param);

1
arch/sparc64/build.xml
View File

@@ -17,6 +17,7 @@
<object source="elfload.c"/>
<object source="aoutload.c"/>
<object source="forthload.c"/>
<object source="fcodeload.c"/>
<object source="loadfs.c"/>
</library>

76
arch/sparc64/fcodeload.c Normal file
View File

@@ -0,0 +1,76 @@
/*
* FCode boot loader
*/
#include "openbios/config.h"
#include "openbios/kernel.h"
#include "openbios/bindings.h"
#include "sys_info.h"
#include "loadfs.h"
#include "boot.h"
#define printf printk
#define debug printk
int fcode_load(struct sys_info *info, const char *filename,
const char *cmdline)
{
int retval = -1;
uint8_t fcode_header[8];
unsigned long start, size;
unsigned int offset;
if (!file_open(filename))
goto out;
for (offset = 0; offset < 16 * 512; offset += 512) {
file_seek(offset);
if (lfile_read(&fcode_header, sizeof(fcode_header))
!= sizeof(fcode_header)) {
debug("Can't read FCode header from file %s\n", filename);
retval = LOADER_NOT_SUPPORT;
goto out;
}
switch (fcode_header[0]) {
case 0xf0: // start0
case 0xf1: // start1
case 0xf2: // start2
case 0xf3: // start4
case 0xfd: // version1
goto found;
}
}
debug("Not a bootable FCode image\n");
retval = LOADER_NOT_SUPPORT;
goto out;
found:
size = (fcode_header[4] << 24) | (fcode_header[5] << 16) |
(fcode_header[6] << 8) | fcode_header[7];
start = 0x4000;
printf("Loading FCode image...\n");
file_seek(offset + sizeof(fcode_header));
if ((unsigned long)lfile_read((void *)start, size) != size) {
printf("Can't read file (size 0x%lx)\n", size);
goto out;
}
debug("Loaded %lu bytes\n", size);
debug("entry point is %#lx\n", start);
printf("Evaluating FCode...\n");
PUSH(start);
PUSH(1);
fword("byte-load");
retval = 0;
out:
file_close();
return retval;
}