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authorEric Biederman <ebiederm@xmission.com>2004-10-30 08:05:41 +0000
committerEric Biederman <ebiederm@xmission.com>2004-10-30 08:05:41 +0000
commitf8a2dddb573faef41ad43ee111d91d4c5259ad59 (patch)
tree3606ac56f585bce51868b8a5388bf9d0bb4561b9 /src/cpu/x86/16bit
parent0afcba7a3d0e7dc22818ecdfd79230f5fb987f0d (diff)
downloadcoreboot-f8a2dddb573faef41ad43ee111d91d4c5259ad59.tar.xz
- To reduce confuse rename the parts of linuxbios bios that run from
ram linuxbios_ram instead of linuxbios_c and linuxbios_payload... - Reordered the linker sections so the LinuxBIOS fallback image can take more the 64KiB on x86 - ROM_IMAGE_SIZE now will work when it is specified as larger than 64KiB. - Tweaked the reset16.inc and reset16.lds to move the sanity check to see if everything will work. - Start using romcc's built in preprocessor (This will simplify header compiler checks) - Add helper functions for examining all of the resources - Remove debug strings from chip.h - Add llshell to src/arch/i386/llshell (Sometime later I can try it...) - Add the ability to catch exceptions on x86 - Add gdb_stub support to x86 - Removed old cpu options - Added an option so we can detect movnti support - Remove some duplicate definitions from pci_ids.h - Remove the 64bit resource code in amdk8/northbridge.c in preparation for making it generic - Minor romcc bug fixes git-svn-id: svn://svn.coreboot.org/coreboot/trunk@1727 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
Diffstat (limited to 'src/cpu/x86/16bit')
-rw-r--r--src/cpu/x86/16bit/reset16.inc5
-rw-r--r--src/cpu/x86/16bit/reset16.lds4
2 files changed, 3 insertions, 6 deletions
diff --git a/src/cpu/x86/16bit/reset16.inc b/src/cpu/x86/16bit/reset16.inc
index d36c94085e..1be0e3a94c 100644
--- a/src/cpu/x86/16bit/reset16.inc
+++ b/src/cpu/x86/16bit/reset16.inc
@@ -2,8 +2,6 @@
.code16
.globl reset_vector
reset_vector:
-#if _ROMBASE >= 0xffff0000
- /* jmp _start */
.byte 0xe9
.int _start - ( . + 2 )
/* Note: The above jump is hand coded to work around bugs in binutils.
@@ -12,9 +10,6 @@ reset_vector:
* instead of the weird 16 bit relocations that binutils does not
* handle consistenly between versions because they are used so rarely.
*/
-#else
-# error _ROMBASE is an unsupported value
-#endif
. = 0x8;
.code32
jmp protected_start
diff --git a/src/cpu/x86/16bit/reset16.lds b/src/cpu/x86/16bit/reset16.lds
index 80f2fc0c6f..d01f094b3c 100644
--- a/src/cpu/x86/16bit/reset16.lds
+++ b/src/cpu/x86/16bit/reset16.lds
@@ -4,7 +4,8 @@
*/
SECTIONS {
- _ROMTOP = (_ROMBASE >= 0xffff0000)? 0xfffffff0 : 0xffff0;
+ /* Trigger an error if I have an unuseable start address */
+ _ROMTOP = (_start >= 0xffff0000) ? 0xfffffff0 : 0xffffffff8;
. = _ROMTOP;
.reset . : {
*(.reset)
@@ -12,3 +13,4 @@ SECTIONS {
BYTE(0x00);
}
}
+