[coreboot] New patch to review for coreboot: 861b306 configure VT8237R ROM decode according to CONFIG_ROM_SIZE

[Florian Zumbiehl]

Florian Zumbiehl just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/375

-gerrit

commit 861b306c9f63f5a7ff075a94d07c21fb2645cf5f
Author: Florian Zumbiehl 
Date:   Tue Nov 1 20:18:27 2011 +0100

configure VT8237R ROM decode according to CONFIG_ROM_SIZE

Change-Id: I217813f42a52f759bf1010f4c5af62f3c6e5ec6b
    Signed-off-by: Florian Zumbiehl 
---
 src/southbridge/via/vt8237r/lpc.c |    5 ++++-
 1 files changed, 4 insertions(+), 1 deletions(-)

diff --git a/src/southbridge/via/vt8237r/lpc.c b/src/southbridge/via/vt8237r/lpc.c
index b1e1afe..4b3064a 100644
--- a/src/southbridge/via/vt8237r/lpc.c
+++ b/src/southbridge/via/vt8237r/lpc.c
@@ -447,7 +447,10 @@ static void vt8237_common_init(struct device *dev)
     *   0 FFC00000h-FFC7FFFFh
     * So 0x7f here sets ROM decode to FFC00000-FFFFFFFF or 4Mbyte.
     */
-	pci_write_config8(dev, 0x41, 0x7f);
+#if CONFIG_ROM_SIZE > 0x400000
+#error ROMs larger than 4MB are not supported by VT8237
+#endif
+	pci_write_config8(dev, 0x41, (~(0xff>>((CONFIG_ROM_SIZE+(512*1024-1))/(512*1024))))&0x7f);
 #endif

/*