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authorYinghai Lu <yinghailu@gmail.com>2005-07-08 02:49:49 +0000
committerYinghai Lu <yinghailu@gmail.com>2005-07-08 02:49:49 +0000
commit13f1c2af8be2cd7f7e99a678f5d428a65b771811 (patch)
tree27cad5581f1fa150f573149d48e82f70ba1b1d9f /src/devices/device_util.c
parent14cde9e96a777f9d75016a13b23fab0480515f58 (diff)
eric patch
1. x86_setup_mtrr take address bit. 2. generic ht, pcix, pcie beidge... 3. scan bus and reset_bus 4. ht read ctrl to decide if the ht chain is ready 5. Intel e7520 and e7525 support 6. new ich5r support 7. intel sb 6300 support. yhlu patch 1. split x86_setup_mtrrs to fixed and var 2. if (resource->flags & IORESOURCE_FIXED ) return; in device.c pick_largest_resource 3. in_conherent.c K8_SCAN_PCI_BUS git-svn-id: svn://svn.coreboot.org/coreboot/trunk@1982 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
Diffstat (limited to 'src/devices/device_util.c')
-rw-r--r--src/devices/device_util.c68
1 files changed, 57 insertions, 11 deletions
diff --git a/src/devices/device_util.c b/src/devices/device_util.c
index a19a878b47..fa2adaef4f 100644
--- a/src/devices/device_util.c
+++ b/src/devices/device_util.c
@@ -16,7 +16,7 @@
device_t find_dev_path(struct bus *parent, struct device_path *path)
{
device_t child;
- for (child = parent->children; child; child = child->sibling) {
+ for(child = parent->children; child; child = child->sibling) {
if (path_eq(path, &child->path)) {
break;
}
@@ -178,6 +178,14 @@ const char *dev_path(device_t dev)
return buffer;
}
+const char *bus_path(struct bus *bus)
+{
+ static char buffer[BUS_PATH_MAX];
+ sprintf(buffer, "%s,%d",
+ dev_path(bus->dev), bus->link);
+ return buffer;
+}
+
int path_eq(struct device_path *path1, struct device_path *path2)
{
int equal = 0;
@@ -390,12 +398,30 @@ resource_t resource_max(struct resource *resource)
}
/**
+ * @brief return the resource type of a resource
+ * @param resource the resource type to decode.
+ */
+const char *resource_type(struct resource *resource)
+{
+ static char buffer[RESOURCE_TYPE_MAX];
+ sprintf(buffer, "%s%s%s%s",
+ ((resource->flags & IORESOURCE_READONLY)? "ro": ""),
+ ((resource->flags & IORESOURCE_PREFETCH)? "pref":""),
+ ((resource->flags == 0)? "unused":
+ (resource->flags & IORESOURCE_IO)? "io":
+ (resource->flags & IORESOURCE_DRQ)? "drq":
+ (resource->flags & IORESOURCE_IRQ)? "irq":
+ (resource->flags & IORESOURCE_MEM)? "mem":"??????"),
+ ((resource->flags & IORESOURCE_PCI64)?"64":""));
+ return buffer;
+}
+
+/**
* @brief print the resource that was just stored.
* @param dev the device the stored resorce lives on
* @param resource the resource that was just stored.
*/
-void report_resource_stored(device_t dev, struct resource *resource,
- const char *comment)
+void report_resource_stored(device_t dev, struct resource *resource, const char *comment)
{
if (resource->flags & IORESOURCE_STORED) {
unsigned char buf[10];
@@ -407,18 +433,12 @@ void report_resource_stored(device_t dev, struct resource *resource,
sprintf(buf, "bus %d ", dev->link[0].secondary);
}
printk_debug(
- "%s %02x <- [0x%010Lx - 0x%010Lx] %s%s%s%s\n",
+ "%s %02x <- [0x%010Lx - 0x%010Lx] %s%s%s\n",
dev_path(dev),
resource->index,
base, end,
buf,
- (resource->flags & IORESOURCE_PREFETCH) ? "pref" : "",
- (resource->flags & IORESOURCE_IO)? "io":
- (resource->flags & IORESOURCE_DRQ)? "drq":
- (resource->flags & IORESOURCE_IRQ)? "irq":
- (resource->flags & IORESOURCE_READONLY)? "rom":
- (resource->flags & IORESOURCE_MEM)? "mem":
- "????",
+ resource_type(resource),
comment);
}
}
@@ -473,3 +493,29 @@ void search_global_resources(
}
}
}
+
+void dev_set_enabled(device_t dev, int enable)
+{
+ if (dev->enabled == enable) {
+ return;
+ }
+ dev->enabled = enable;
+ if (dev->ops && dev->ops->enable) {
+ dev->ops->enable(dev);
+ }
+ else if (dev->chip_ops && dev->chip_ops->enable_dev) {
+ dev->chip_ops->enable_dev(dev);
+ }
+}
+
+void disable_children(struct bus *bus)
+{
+ device_t child;
+ for(child = bus->children; child; child = child->sibling) {
+ int link;
+ for(link = 0; link < child->links; link++) {
+ disable_children(&child->link[link]);
+ }
+ dev_set_enabled(child, 0);
+ }
+}