Revision: linuxbios@linuxbios.org--devel/freebios--devel--2.0--patch-30

Creator:  Yinghai Lu <yhlu@tyan.com>

Nvidia Ck804 support


git-svn-id: svn://svn.coreboot.org/coreboot/trunk@1946 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1

src/devices/device_util.c

@@ -64,6 +64,29 @@ struct device *dev_find_slot(unsigned int bus, unsigned int devfn)
 	return result;
 }
 
+/**
+ * @brief Given a smbus bus and a device number, find the device structure
+ *
+ * @param bus The bus number
+ * @param addr a device number 
+ * @return pointer to the device structure
+ */
+struct device *dev_find_slot_on_smbus(unsigned int bus, unsigned int addr)
+{
+        struct device *dev, *result;
+        
+        result = 0;
+        for (dev = all_devices; dev; dev = dev->next) {
+                if ((dev->path.type == DEVICE_PATH_I2C) &&
+                        (dev->bus->secondary == bus) && 
+                        (dev->path.u.i2c.device == addr)) {
+                        result = dev;
+                        break; 
+                }       
+        }       
+        return result;
+}    
+
 /** Find a device of a given vendor and type
  * @param vendor Vendor ID (e.g. 0x8086 for Intel)
  * @param device Device ID
@@ -125,7 +148,8 @@ const char *dev_path(device_t dev)
 				dev->path.u.pnp.port, dev->path.u.pnp.device);
 			break;
 		case DEVICE_PATH_I2C:
-			sprintf(buffer, "I2C: %02x",
+			sprintf(buffer, "I2C: %02x:%02x",
+				dev->bus->secondary,
 				dev->path.u.i2c.device);
 			break;
 		case DEVICE_PATH_APIC:

src/devices/emulator/biosemu.c

@@ -113,7 +113,7 @@ void do_int(int num)
 {
 	int ret = 0;
 
-	printk_debug("int%x vector at %x\n", num, getIntVect(num));
+//	printk_debug("int%x vector at %x\n", num, getIntVect(num));
 
 	switch (num) {
 #ifndef _PC
@@ -154,6 +154,7 @@ void do_int(int num)
 		ret = run_bios_int(num);
 
 }
+#if 0
 #define SYS_BIOS 0xf0000
 /*
  * here we are really paranoid about faking a "real"
@@ -270,7 +271,7 @@ void reset_int_vect(void)
 	MEM_WW(0x6D << 2, 0xf065);
 	MEM_WW((0x6D << 2) + 2, SYS_BIOS >> 4);
 }
-
+#endif
 void run_bios(struct device * dev, unsigned long addr)
 {
 #if 1
@@ -322,7 +323,7 @@ void run_bios(struct device * dev, unsigned long addr)
 	pushw(X86_SS);
 	pushw(X86_SP + 2);
 
-	//X86EMU_trace_on();
+//	X86EMU_trace_on();
 
 	X86EMU_exec();
 #endif

src/devices/hypertransport.c

@@ -200,6 +200,16 @@ static void ht_collapse_early_enumeration(struct bus *bus)
 			continue;
 		}
 
+#if 0
+#if CK804_DEVN_BASE==0		
+                //CK804 workaround: 
+                // CK804 UnitID changes not use
+                if(id == 0x005e10de) {
+                        break;
+                }
+#endif
+#endif
+
 		dummy.vendor = id & 0xffff;
 		dummy.device = (id >> 16) & 0xffff;
 		dummy.hdr_type = pci_read_config8(&dummy, PCI_HEADER_TYPE);
@@ -312,8 +322,17 @@ unsigned int hypertransport_scan_chain(struct bus *bus, unsigned int max)
 		/* Update the Unitid of the current device */
 		flags = pci_read_config16(dev, pos + PCI_CAP_FLAGS);
 		flags &= ~0x1f; /* mask out base Unit ID */
-		flags |= next_unitid & 0x1f;
-		pci_write_config16(dev, pos + PCI_CAP_FLAGS, flags);
+#if CK804_DEVN_BASE==0  
+	        if(id == 0x005e10de) {
+			next_unitid = 0;
+		} 
+		else {
+#endif
+			flags |= next_unitid & 0x1f;
+			pci_write_config16(dev, pos + PCI_CAP_FLAGS, flags);
+#if CK804_DEVN_BASE==0 
+		}
+#endif
 
 		/* Update the Unitd id in the device structure */
 		static_count = 1;
@@ -354,6 +373,11 @@ unsigned int hypertransport_scan_chain(struct bus *bus, unsigned int max)
 			dev_path(dev),
 			dev->vendor, dev->device, 
 			(dev->enabled? "enabled": "disabled"), next_unitid);
+#if CK804_DEVN_BASE==0 
+	 	if(id == 0x005e10de) {
+			break; // CK804 can not change unitid, so it only can be alone in the link
+		}
+#endif
 
 	} while((last_unitid != next_unitid) && (next_unitid <= 0x1f));
 

src/devices/pci_device.c

@@ -832,6 +832,7 @@ unsigned int pci_scan_bus(struct bus *bus, unsigned min_devfn, unsigned max_devf
 						dev_path(dev));
 					dev->enabled = 0;
 				}
+				continue;
 			}
 		}
 		/* Read the rest of the pci configuration information */

src/devices/root_device.c

@@ -74,6 +74,7 @@ void root_dev_set_resources(device_t root)
  * @param max  Maximum bus number currently used before scanning.
  * @return Largest bus number used after scanning.
  */
+static int smbus_max = 0;
 unsigned int scan_static_bus(device_t root, unsigned int max)
 {
 	device_t child;
@@ -82,6 +83,11 @@ unsigned int scan_static_bus(device_t root, unsigned int max)
 	printk_spew("%s for %s\n", __func__, dev_path(root));
 
 	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) {
 			if (child->chip_ops && child->chip_ops->enable_dev) {
 				child->chip_ops->enable_dev(child);