[coreboot] Top 256 bytes in ROM for Nvidia

Carl-Daniel Hailfinger c-d.hailfinger.devel.2006 at gmx.net
Sat Jul 5 03:17:22 CEST 2008


Hi Yinghai,

is there any public information about the usage of the top 256 bytes in
ROM for Nvidia chipsets? The only information I found was
http://coreboot.org/pipermail/coreboot/2005-November/012918.html but
that does not explain the reasons or give me a memory map.
I'm looking at this diff and wonder if 0x80 is the only possible
location for ID information in the ROM.

--- ./src/arch/i386/lib/id.lds	2007-12-30 01:04:02.000000000 +0100
+++ ./src/southbridge/nvidia/ck804/id.lds	2007-12-30 01:04:06.000000000 +0100
@@ -1,5 +1,5 @@
 SECTIONS {
-	. = (_ROMBASE + ROM_IMAGE_SIZE - 0x10) - (__id_end - __id_start);
+	. = (_ROMBASE + ROM_IMAGE_SIZE - 0x80) - (__id_end - __id_start);
 	.id (.): {
 		*(.id)
 	}


Regards,
Carl-Daniel





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