Optionally treat ck804 memory-mapped PCI configuration space window as a
resource. Not enabled by default because the resource should be
non-posted and there's no way to express that to the resource allocator.
Signed-off-by: Jonathan Kollasch <[email protected]>
Index: src/southbridge/nvidia/ck804/Kconfig
===================================================================
--- src/southbridge/nvidia/ck804/Kconfig (revision 6607)
+++ src/southbridge/nvidia/ck804/Kconfig (working copy)
@@ -43,4 +43,12 @@
int
default 1
+config CK804_MMCONF_SUPPORT
+ bool
+ default n
+
+config CK804_MMCONF_BASE_ADDRESS
+ hex
+ default 0xe0000000
+
endif
Index: src/southbridge/nvidia/ck804/ht.c
===================================================================
--- src/southbridge/nvidia/ck804/ht.c (revision 6607)
+++ src/southbridge/nvidia/ck804/ht.c (working copy)
@@ -25,9 +25,47 @@
#include <device/pci_ops.h>
#include "ck804.h"
+static void ht_read_resources(device_t dev)
+{
+#if CONFIG_CK804_MMCONF_SUPPORT
+ struct resource *res;
+#endif
+
+ pci_dev_read_resources(dev);
+
+#if CONFIG_CK804_MMCONF_SUPPORT
+ res = new_resource(dev, 0x90); /* MMCONF */
+ res->base = CONFIG_CK804_MMCONF_BASE_ADDRESS;
+ res->size = 0x10000000;
+ res->align = 28;
+ res->gran = 28;
+ res->limit = 0xffffffff;
+ res->flags = IORESOURCE_MEM | IORESOURCE_ASSIGNED | IORESOURCE_FIXED;
+#endif
+}
+
+static void ht_set_resources(device_t dev)
+{
+#if CONFIG_CK804_MMCONF_SUPPORT
+ struct resource *res;
+#endif
+
+ pci_dev_set_resources(dev);
+
+#if CONFIG_CK804_MMCONF_SUPPORT
+ /* enable MMCONF */
+ res = find_resource(dev, 0x90);
+ if (res) {
+ pci_write_config16(dev, 0x90, 1<<12|((res->base >> 28)&0xf));
+ res->flags |= IORESOURCE_STORED;
+ report_resource_stored(dev, res, "");
+ }
+#endif
+}
+
static struct device_operations ht_ops = {
- .read_resources = pci_dev_read_resources,
- .set_resources = pci_dev_set_resources,
+ .read_resources = ht_read_resources,
+ .set_resources = ht_set_resources,
.enable_resources = pci_dev_enable_resources,
.init = 0,
.scan_bus = 0,
--
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