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Move the Fcode loader from arch/*/fcodeload.c to libopenbios/fcode_load.c.

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Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@siriusit.co.uk>


git-svn-id: svn://coreboot.org/openbios/trunk/openbios-devel@714 f158a5a8-5612-0410-a976-696ce0be7e32
This commit is contained in:
Mark Cave-Ayland
2010-03-27 12:09:16 +00:00
committed by Mark Cave-Ayland
parent 08ee7445f1
commit 0933f8c540
6 changed files with 27 additions and 9 deletions
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1
libopenbios/build.xml
View File

@@ -17,6 +17,7 @@
<object source="elf_load.c" condition="AMD64"/>
<object source="font_8x8.c" condition="FONT_8X8"/>
<object source="font_8x16.c" condition="FONT_8X16"/>
<object source="fcode_load.c" condition="SPARC64"/>
<object source="forth_load.c" condition="X86"/>
<object source="ipchecksum.c"/>
<object source="linuxbios_info.c" condition="LINUXBIOS"/>

82
libopenbios/fcode_load.c Normal file
View File

@@ -0,0 +1,82 @@
/*
* FCode boot loader
*/
#include "config.h"
#include "kernel/kernel.h"
#include "libopenbios/bindings.h"
#include "libopenbios/fcode_load.h"
#include "libopenbios/sys_info.h"
#include "libc/diskio.h"
#define printf printk
#define debug printk
static int fd;
int fcode_load(const char *filename)
{
int retval = -1;
uint8_t fcode_header[8];
unsigned long start, size;
unsigned int offset;
/* Mark the saved-program-state as invalid */
feval("0 state-valid !");
fd = open_io(filename);
if (!fd)
goto out;
for (offset = 0; offset < 16 * 512; offset += 512) {
seek_io(fd, offset);
if (read_io(fd, &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");
seek_io(fd, offset + sizeof(fcode_header));
if ((size_t)read_io(fd, (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);
// Initialise saved-program-state
PUSH(start);
feval("saved-program-state >sps.entry !");
PUSH(size);
feval("saved-program-state >sps.file-size !");
feval("fcode saved-program-state >sps.file-type !");
feval("-1 state-valid !");
out:
close_io(fd);
return retval;
}