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

1 files changed, 42 insertions, 30 deletions

diff --git a/src/devices/root_device.c b/src/devices/root_device.c
index 2bb4f0afe8..3e559ea7c0 100644
--- a/src/devices/root_device.c
+++ b/src/devices/root_device.c
@@ -1,6 +1,7 @@
 #include <console/console.h>
 #include <device/device.h>
 #include <device/pci.h>
+#include <part/hard_reset.h>
 
 /** 
  * Read the resources for the root device,
@@ -35,8 +36,9 @@ void root_dev_read_resources(device_t root)
 }
 
 /**
- * @brief Write the resources for the root device
+ * @brief Write the resources for every device
  *
+ * Write the resources for the root device,
  * and every device under it which are all of the devices.
  * @param root Pointer to the device structure for the system root device
  */
@@ -45,10 +47,10 @@ void root_dev_set_resources(device_t root)
 	struct bus *bus;
 
 	bus = &root->link[0];
-	compute_allocate_resource(bus, &root->resource[0],
-				  IORESOURCE_IO, IORESOURCE_IO);
-	compute_allocate_resource(bus, &root->resource[1],
-				  IORESOURCE_MEM, IORESOURCE_MEM);
+	compute_allocate_resource(bus,
+		&root->resource[0], IORESOURCE_IO, IORESOURCE_IO);
+	compute_allocate_resource(bus, 
+		&root->resource[1], IORESOURCE_MEM, IORESOURCE_MEM);
 	assign_resources(bus);
 }
 
@@ -57,9 +59,9 @@ void root_dev_set_resources(device_t root)
  *
  * The enumeration of certain buses is purely static. The existence of
  * devices on those buses can be completely determined at compile time
- * and is specified in the config file. Typical exapmles are the 'PNP'
- * devices on a legacy ISA/LPC bus. There is no need of probing of any
- * kind, the only thing we have to do is to walk through the bus and
+ * and is specified in the config file. Typical examples are the 'PNP' 
+ * devices on a legacy ISA/LPC bus. There is no need of probing of any kind, 
+ * the only thing we have to do is to walk through the bus and 
  * enable or disable devices as indicated in the config file.
  *
  * On the other hand, some devices are virtual and their existence is
@@ -70,47 +72,50 @@ void root_dev_set_resources(device_t root)
  * This function is the default scan_bus() method for the root device and
  * LPC bridges.
  *
- * @param root Pointer to the root device which the static buses are attached
+ * @param bus Pointer to the device structure which the static buses are attached
  * @param max  Maximum bus number currently used before scanning.
- * @return Largest bus number used after scanning.
+ * @return Largest bus number used.
  */
 static int smbus_max = 0;
-unsigned int scan_static_bus(device_t root, unsigned int max)
+unsigned int scan_static_bus(device_t bus, unsigned int max)
 {
 	device_t child;
 	unsigned link;
 
-	printk_spew("%s for %s\n", __func__, dev_path(root));
+	printk_spew("%s for %s\n", __func__, dev_path(bus));
 
-	for (link = 0; link < root->links; link++) {
-                /* for smbus bus enumerate */
-                child = root->link[link].children;
-                if(child && child->path.type == DEVICE_PATH_I2C) {
-                        root->link[link].secondary = ++smbus_max;
-                }
-		for (child = root->link[link].children; child; child = child->sibling) {
+	for(link = 0; link < bus->links; link++) {
+		/* for smbus bus enumerate */
+		child = bus->link[link].children;
+		if(child && child->path.type == DEVICE_PATH_I2C) {
+			bus->link[link].secondary = ++smbus_max;
+		}
+		for(child = bus->link[link].children; child; child = child->sibling) {
 			if (child->chip_ops && child->chip_ops->enable_dev) {
 				child->chip_ops->enable_dev(child);
 			}
 			if (child->ops && child->ops->enable) {
 				child->ops->enable(child);
 			}
-			if (child->path.type == DEVICE_PATH_I2C)	
-				printk_debug("smbus: %s[%d]->",  dev_path(child->bus->dev), child->bus->link );
-			printk_debug("%s %s\n", dev_path(child),
-				     child->enabled?"enabled": "disabled");
+ 			if (child->path.type == DEVICE_PATH_I2C) {
+ 				printk_debug("smbus: %s[%d]->",  
+					dev_path(child->bus->dev), child->bus->link );
+			}
+			printk_debug("%s %s\n",
+				dev_path(child),
+				child->enabled?"enabled": "disabled");
 		}
 	}
-	for (link = 0; link < root->links; link++) {
-		for (child = root->link[link].children; child; child = child->sibling) {
+	for(link = 0; link < bus->links; link++) {
+		for(child = bus->link[link].children; child; child = child->sibling) {
 			if (!child->ops || !child->ops->scan_bus)
 				continue;
 			printk_spew("%s scanning...\n", dev_path(child));
-			max = child->ops->scan_bus(child, max);
+			max = scan_bus(child, max);
 		}
 	}
 
-	printk_spew("%s for  %s done\n", __func__, dev_path(root));
+	printk_spew("%s for %s done\n", __func__, dev_path(bus));
 
 	return max;
 }
@@ -120,7 +125,7 @@ unsigned int scan_static_bus(device_t root, unsigned int max)
  *
  * @param dev the device whos children's resources are to be enabled
  *
- * This function is call by the global enable_resources() indirectly via the
+ * This function is called by the global enable_resource() indirectly via the
  * device_operation::enable_resources() method of devices.
  *
  * Indirect mutual recursion:
@@ -131,9 +136,9 @@ unsigned int scan_static_bus(device_t root, unsigned int max)
 void enable_childrens_resources(device_t dev)
 {
 	unsigned link;
-	for (link = 0; link < dev->links; link++) {
+	for(link = 0; link < dev->links; link++) {
 		device_t child;
-		for (child = dev->link[link].children; child; child = child->sibling) {
+		for(child = dev->link[link].children; child; child = child->sibling) {
 			enable_resources(child);
 		}
 	}
@@ -161,6 +166,12 @@ void root_dev_init(device_t root)
 {
 }
 
+void root_dev_reset(struct bus *bus)
+{
+	printk_info("Reseting board...\n");
+	hard_reset();
+}
+
 /**
  * @brief Default device operation for root device
  *
@@ -174,6 +185,7 @@ struct device_operations default_dev_ops_root = {
 	.enable_resources = root_dev_enable_resources,
 	.init             = root_dev_init,
 	.scan_bus         = root_dev_scan_bus,
+	.reset_bus        = root_dev_reset,
 };
 
 /**