The Silicon Image PCI0680 has bit 26 marked as reserved, so don't use it

Corresponding to flashrom svn r537.
Signed-off-by: Uwe Hermann <uwe@hermann-uwe.de>
Acked-by: Uwe Hermann <uwe@hermann-uwe.de>

satasii.c

@@ -64,8 +64,8 @@ int satasii_init(void)
 	sii_bar = physmap("SATA SIL registers", addr, 0x100) + reg_offset;
 
 	/* Check if ROM cycle are OK. */
-	if (!(mmio_readl(sii_bar)) & (1 << 26))
-		printf("Warning: Flash seems unconnected\n");
+	if ((id != 0x0680) && (!(mmio_readl(sii_bar)) & (1 << 26)))
+		printf("Warning: Flash seems unconnected.\n");
 
 	return 0;
 }