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Add quik support (oldworld bootloader).

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Load two first sectors of the partition and check quik signature ('QUIK').
If it is quik, execute it to boot.

Currently partition and parameter are hardcoded to "hd:2" and "Linux".



git-svn-id: svn://coreboot.org/openbios/openbios-devel@385 f158a5a8-5612-0410-a976-696ce0be7e32
This commit is contained in:
Laurent Vivier
2009-01-11 00:19:02 +00:00
parent f42c360455
commit 3888c71730
1 changed files with 72 additions and 0 deletions
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72
arch/ppc/qemu/main.c
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@@ -234,6 +234,77 @@ static uint32_t nvram_read_be32(uint16_t offset)
return ret;
}
#define QUIK_SECOND_BASEADDR 0x3e0000
#define QUIK_FIRST_BASEADDR 0x3f4000
#define QUIK_SECOND_SIZE (QUIK_FIRST_BASEADDR - QUIK_SECOND_BASEADDR)
#define QUIK_FIRST_INFO_OFF 0x2c8
struct first_info {
char quik_vers[8];
int nblocks;
int blocksize;
unsigned second_base;
int conf_part;
char conf_file[32];
unsigned blknos[64];
};
static void
quik_startup( void )
{
int fd;
int len;
const char *path = "hd:2";
union {
char buffer[1024];
int first_word;
struct {
char pad[QUIK_FIRST_INFO_OFF];
struct first_info fi;
} fi;
} u;
phandle_t ph;
if ((fd = open_io(path)) == -1) {
ELF_DPRINTF("Can't open %s\n", path);
return;
}
seek_io(fd, 0);
len = read_io(fd, u.buffer, sizeof(u));
close_io( fd );
if (len == -1) {
ELF_DPRINTF("Can't read %s\n", path);
return;
}
/* is it quik ? */
if (memcmp(u.fi.fi.quik_vers, "QUIK", 4))
return;
ph = find_dev("/options");
set_property(ph, "boot-device", path, strlen(path) + 1);
ph = find_dev("/chosen");
set_property(ph, "bootargs", "Linux", 6);
if( ofmem_claim( QUIK_FIRST_BASEADDR, len, 0 ) == -1 )
fatal_error("Claim failed!\n");
memcpy(QUIK_FIRST_BASEADDR, u.buffer, len);
/* quik fist level doesn't claim second level memory */
if( ofmem_claim( QUIK_SECOND_BASEADDR, QUIK_SECOND_SIZE, 0 ) == -1 )
fatal_error("Claim failed!\n");
call_elf(0, 0, QUIK_FIRST_BASEADDR);
return;
}
static void
yaboot_startup( void )
{
@@ -318,5 +389,6 @@ boot( void )
{
fword("update-chosen");
check_preloaded_kernel();
quik_startup();
yaboot_startup();
}