Re-worked devicetree.cb for DL145 G1

[coreboot.git] / src / mainboard / hp / dl145_g1 / devicetree.cb

diff --git a/src/mainboard/hp/dl145_g1/devicetree.cb b/src/mainboard/hp/dl145_g1/devicetree.cb
index 3237723a5312399b136c97b92fa1ffe69ed2a1db..bd67f23d54cd00d55d95c78637552dbaef35f685 100644 (file)
--- a/src/mainboard/hp/dl145_g1/devicetree.cb
+++ b/src/mainboard/hp/dl145_g1/devicetree.cb
@@ -12,45 +12,46 @@ chip northbridge/amd/amdk8/root_complex
       device pci 18.0 on     # link 2
         chip southbridge/amd/amd8131
           # the on/off keyword is mandatory
-          device pci 0.0 on end
-          device pci 0.1 on end
-          device pci 1.0 on end
-          device pci 1.1 on end
-          device pci 2.0 on end
-          device pci 2.1 on end
-          device pci 3.0 off end
+          device pci 0.0 on # PCIX Bridge A
+            # PCI-X expansion slot cards auto-detected here
+          end
+          device pci 0.1 on end  # IOAPIC A
+          device pci 1.0 on      # PCIX Bridge B
+            # On-board BCM5704 dual port ethernet chip auto-detected here
+            # Optional SCSI board also (?)
+         end
+          device pci 1.1 on end  # IOAPIC B
+          device pci 2.0 off end
         end
         chip southbridge/amd/amd8111
-          # this "device pci 0.0" is the parent the next one
+          # this "device pci 0.0" is the parent of the next one
           # PCI bridge
           device pci 0.0 on
-            device pci 0.0 on end # LPC
-            device pci 0.1 on end # IDE
-            device pci 0.2 on end # SMbus
-            device pci 0.3 on end # ACPI
-            device pci 1.0 off end
-            #device pci 5.0 on end # SiI
-            #device pci 6.0 on end
+            device pci 0.0 on end  # OHCI-based USB controller 0
+            device pci 0.1 on end  # OCHI-based USB controller 1
+            device pci 0.2 on end  # EHCI-based USB2 controller
+            device pci 1.0 off end # LAN Ethernet controller
+            #device pci 4.0 on end # VGA PCI-card (auto detected)
           end
-          device pci 1.0 on
+          device pci 1.0 on # LPC Bridge
             chip superio/winbond/w83627hf
               device pnp 2e.0 off # Floppy
-                io  0x60 = 0x3f0
-                irq 0x70 = 6
-                drq 0x74 = 2
+                #io  0x60 = 0x3f0
+                #irq 0x70 = 6
+                #drq 0x74 = 2
               end
               device pnp 2e.1 off # Parallel Port
-                io  0x60 = 0x378
-                irq 0x70 = 7
-                drq 0x74 = 1
+                #io  0x60 = 0x378
+                #irq 0x70 = 7
+                #drq 0x74 = 1
               end
               device pnp 2e.2 on  # Com1
                 io  0x60 = 0x3f8
                 irq 0x70 = 4
               end
-              device pnp 2e.3 on  # Com2
-                io  0x60 = 0x2f8
-                irq 0x70 = 3
+              device pnp 2e.3 off # Com2
+                #io  0x60 = 0x2f8
+                #irq 0x70 = 3
               end
               device pnp 2e.5 on  # Keyboard
                 io  0x60 = 0x60
@@ -60,12 +61,12 @@ chip northbridge/amd/amdk8/root_complex
               end
               device pnp 2e.6 off # CIR
               end
-              device pnp 2e.7 off # GAM_MIDI_GIPO1
-                io  0x60 = 0x201
-                io  0x62 = 0x330
-                irq 0x70 = 9
+              device pnp 2e.7 off  # GAM_MIDI_GPIO1
+                #io  0x60 = 0x201
+                #io  0x62 = 0x330
+                #irq 0x70 = 9
               end
-              device pnp 2e.8 on  # GPIO2
+              device pnp 2e.8 on  # GPIO2 (watchdog timer)
               end
               device pnp 2e.9 on  # GPIO3
               end
@@ -77,28 +78,18 @@ chip northbridge/amd/amdk8/root_complex
               end
             end
           end
-          device pci 1.1 on end
-          device pci 1.2 on end
-          device pci 1.3 on
-            chip drivers/generic/generic # ???
-              device i2c 08 on end
+          device pci 1.1 on end # EIDE controller
+          device pci 1.2 on 
+            chip drivers/generic/generic
+              device i2c 8 on end # Some HW-monitor/sensor?
             end
-            chip drivers/i2c/i2cmux # pca9556 smbus mux
-              device i2c 18 on #0 pca9516 1
-                # I don't know what 30-33 are for,
-                # they seem to have something to do with the DIMM's
-                chip drivers/generic/generic # ???
-                  device i2c 30 on end
-                end
-                chip drivers/generic/generic # ???
-                  device i2c 31 on end
-                end
-                chip drivers/generic/generic # ???
-                  device i2c 32 on end
-                end
-                chip drivers/generic/generic # ???
-                  device i2c 33 on end
-                end
+          end
+          device pci 1.2 on 
+            chip drivers/i2c/i2cmux # Multplexed DIMM spd eeproms.
+              device i2c 18 on #0 pca9516 (?)
+                # Some dimms also listen to address 30-33
+               # It's some kind of write-protect function
+               # The 50-53 addresses are the interesting ones.
                 chip drivers/generic/generic #dimm H0-0
                   device i2c 50 on end
                 end
@@ -112,19 +103,7 @@ chip northbridge/amd/amdk8/root_complex
                   device i2c 53 on end
                 end
               end
-              device i2c 18 on #1 pca9516 2
-                chip drivers/generic/generic # ???
-                  device i2c 30 on end
-                end
-                chip drivers/generic/generic # ???
-                  device i2c 31 on end
-                end
-                chip drivers/generic/generic # ???
-                  device i2c 32 on end
-                end
-                chip drivers/generic/generic # ???
-                  device i2c 33 on end
-                end
+              device i2c 18 on #1 pca9516 (?)
                 chip drivers/generic/generic #dimm H1-0
                   device i2c 50 on end
                 end
@@ -139,13 +118,17 @@ chip northbridge/amd/amdk8/root_complex
                 end
               end
             end
-            chip drivers/generic/generic # ???
-              device i2c 69 on end
+          end
+          device pci 1.2 on 
+            chip drivers/generic/generic
+              device i2c 69 on end  # Texas Instruments cdc960 clock synthesizer
             end
-          end # acpi
-          device pci 1.4 off end
+         end # SMBus 2.0 controller
+          device pci 1.3 on     # System management registers (ACPI)
+          end # System management
+          #device pci 1.4 off end
           device pci 1.5 off end # AC97 Audio
-          device pci 1.6 off end # MC97 Modem
+          device pci 1.6 off end # AC97 Modem
           register "ide0_enable" = "1"
           register "ide1_enable" = "1"
         end