Florian Zumbiehl just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/388
-gerrit
commit 4a57bd413f93ef5bf639306409baea278608eff9 Author: Florian Zumbiehl florz@florz.de Date: Tue Nov 1 20:19:38 2011 +0100
some black magic for initializing the old version of the k8t800
Change-Id: I1b5d23cee9f933aa090c9bd09890c7b335567e17 Signed-off-by: Florian Zumbiehl florz@florz.de --- src/southbridge/via/k8t890/bridge.c | 9 +++++++++ src/southbridge/via/k8t890/ctrl.c | 11 +++++++++++ 2 files changed, 20 insertions(+), 0 deletions(-)
diff --git a/src/southbridge/via/k8t890/bridge.c b/src/southbridge/via/k8t890/bridge.c index 1b21b32..ecfdc35 100644 --- a/src/southbridge/via/k8t890/bridge.c +++ b/src/southbridge/via/k8t890/bridge.c @@ -33,9 +33,14 @@ static void bridge_enable(struct device *dev) writeback(dev, 0x40, 0x91); writeback(dev, 0x41, 0x40); writeback(dev, 0x43, 0x44); +#if CONFIG_SOUTHBRIDGE_VIA_K8T800_OLD + writeback(dev, 0x42, 0x80); + writeback(dev, 0x44, 0x35); +#else writeback(dev, 0x44, 0x31); /* K8M890 should have 0x35 datasheet * says it is reserved */ +#endif writeback(dev, 0x45, 0x3a); writeback(dev, 0x46, 0x88); /* PCI ID lo */ writeback(dev, 0x47, 0xb1); /* PCI ID hi */ @@ -44,7 +49,11 @@ static void bridge_enable(struct device *dev) * (Forward VGA compatible memory and I/O cycles ) */
+#if CONFIG_SOUTHBRIDGE_VIA_K8T800_OLD + writeback(dev, 0x3e, 0x0a); +#else writeback(dev, 0x3e, 0x16); +#endif dump_south(dev);
/* disable I/O and memory decode, or it freezes PCI bus during BAR sizing */ diff --git a/src/southbridge/via/k8t890/ctrl.c b/src/southbridge/via/k8t890/ctrl.c index 3180412..6e5dbf7 100644 --- a/src/southbridge/via/k8t890/ctrl.c +++ b/src/southbridge/via/k8t890/ctrl.c @@ -51,12 +51,21 @@ void k8x8xx_vt8237r_cfg(struct device *dev, struct device *devsb) pci_write_config8(dev, 0x70, 0xc2);
/* PCI Control */ +#if !CONFIG_SOUTHBRIDGE_VIA_K8T800_OLD pci_write_config8(dev, 0x72, 0xee); +#endif pci_write_config8(dev, 0x73, 0x01); +#if CONFIG_SOUTHBRIDGE_VIA_K8T800_OLD + pci_write_config8(dev, 0x74, 0x64); + pci_write_config8(dev, 0x75, 0x3f); +#else pci_write_config8(dev, 0x74, 0x24); pci_write_config8(dev, 0x75, 0x0f); +#endif pci_write_config8(dev, 0x76, 0x50); +#if !CONFIG_SOUTHBRIDGE_VIA_K8T800_OLD pci_write_config8(dev, 0x77, 0x08); +#endif pci_write_config8(dev, 0x78, 0x01); /* APIC on HT */ pci_write_config8(dev, 0x7c, 0x7f); @@ -151,7 +160,9 @@ static void ctrl_init(struct device *dev) /* PCI CFG Address bits[27:24] are used as extended register address bit[11:8] */
+#if !CONFIG_SOUTHBRIDGE_VIA_K8T800_OLD pci_write_config8(dev, 0x47, 0x30); +#endif
/* VT8237R specific configuration other SB are done in their own directories */