New patch to review for coreboot: 5d061f1 F15tn: Modify devicetree to fix S3 resume on F15tn
Martin Roth (martin.roth@se-eng.com) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/2160
-gerrit
commit 5d061f1d59c81a6660c2fd83cd99d166168b58c6 Author: Martin Roth martin@se-eng.com Date: Thu Jan 10 12:41:40 2013 -0700
F15tn: Modify devicetree to fix S3 resume on F15tn
The way that devicetree.cb was configured for the family15tn boards was doing... interesting things to the video device initialization. This was causing S3 resume to fail.
There is a disconnect between how the devicetree should be configured if there are multiple HT links on the CPU and how it's configured if there's only one HT link. These platforms were set up as if they had the multiple HT links, which was causing duplicate instances of devices in the device list.
The scan for the IO Hub was removed from the northbridge code which isn't a problem for f15tn devices.
Change-Id: I3556b43027746e36b07de7cb1bece4d1b37a3c34 Signed-off-by: Martin Roth martin@se-eng.com --- src/mainboard/amd/parmer/devicetree.cb | 4 +--- src/mainboard/amd/thatcher/devicetree.cb | 4 +--- src/northbridge/amd/agesa/family15tn/northbridge.c | 23 ---------------------- 3 files changed, 2 insertions(+), 29 deletions(-)
diff --git a/src/mainboard/amd/parmer/devicetree.cb b/src/mainboard/amd/parmer/devicetree.cb index 4a59b51..32f5484 100644 --- a/src/mainboard/amd/parmer/devicetree.cb +++ b/src/mainboard/amd/parmer/devicetree.cb @@ -25,7 +25,6 @@ chip northbridge/amd/agesa/family15tn/root_complex device pci_domain 0 on subsystemid 0x1022 0x1410 inherit chip northbridge/amd/agesa/family15tn # CPU side of HT root complex - device pci 18.0 on # northbridge chip northbridge/amd/agesa/family15tn # PCI side of HT root complex device pci 0.0 on end # Root Complex device pci 1.0 on end # Internal Graphics P2P bridge 0x9804 @@ -38,7 +37,6 @@ chip northbridge/amd/agesa/family15tn/root_complex device pci 7.0 on end # LAN device pci 8.0 off end # NB/SB Link P2P bridge end - end chip southbridge/amd/agesa/hudson # it is under NB/SB Link, but on the same pci bus device pci 10.0 on end # XHCI HC0 device pci 10.1 on end # XHCI HC1 @@ -75,7 +73,7 @@ chip northbridge/amd/agesa/family15tn/root_complex register "boot_switch_sata_ide" = "0" # 0: boot from SATA. 1: IDE register "gpp_configuration" = "4" end #southbridge/amd/hudson -# device pci 18.0 on end + device pci 18.0 on end #device pci 18.0 on end device pci 18.1 on end device pci 18.2 on end diff --git a/src/mainboard/amd/thatcher/devicetree.cb b/src/mainboard/amd/thatcher/devicetree.cb index 2a91e1a..561a5b2 100644 --- a/src/mainboard/amd/thatcher/devicetree.cb +++ b/src/mainboard/amd/thatcher/devicetree.cb @@ -25,7 +25,6 @@ chip northbridge/amd/agesa/family15tn/root_complex device pci_domain 0 on subsystemid 0x1022 0x1410 inherit chip northbridge/amd/agesa/family15tn # CPU side of HT root complex - device pci 18.0 on # northbridge chip northbridge/amd/agesa/family15tn # PCI side of HT root complex device pci 0.0 on end # Root Complex device pci 1.0 on end # Internal Graphics P2P bridge 0x9804 @@ -38,7 +37,6 @@ chip northbridge/amd/agesa/family15tn/root_complex device pci 7.0 on end # LAN device pci 8.0 off end # NB/SB Link P2P bridge end - end chip southbridge/amd/agesa/hudson # it is under NB/SB Link, but on the same pci bus device pci 10.0 on end # XHCI HC0 device pci 10.1 on end # XHCI HC1 @@ -92,7 +90,7 @@ chip northbridge/amd/agesa/family15tn/root_complex register "boot_switch_sata_ide" = "0" # 0: boot from SATA. 1: IDE register "gpp_configuration" = "4" end #southbridge/amd/hudson -# device pci 18.0 on end + device pci 18.0 on end #device pci 18.0 on end device pci 18.1 on end device pci 18.2 on end diff --git a/src/northbridge/amd/agesa/family15tn/northbridge.c b/src/northbridge/amd/agesa/family15tn/northbridge.c index 9318164..df632e3 100644 --- a/src/northbridge/amd/agesa/family15tn/northbridge.c +++ b/src/northbridge/amd/agesa/family15tn/northbridge.c @@ -446,35 +446,12 @@ static void northbridge_init(struct device *dev) { }
-static unsigned scan_chains(device_t dev, unsigned max) -{ - unsigned nodeid; - struct bus *link; - device_t io_hub = NULL; - u32 next_unitid = 0x18; - nodeid = amdfam15_nodeid(dev); - if (nodeid == 0) { - for (link = dev->link_list; link; link = link->next) { - //if (link->link_num == sblink) { /* devicetree put IO Hub on link_lsit[sblink] */ - if (link->link_num == 0) { /* devicetree put IO Hub on link_lsit[0] */ - io_hub = link->children; - if (!io_hub || !io_hub->enabled) { - die("I can't find the IO Hub, or IO Hub not enabled, please check the device tree.\n"); - } - /* Now that nothing is overlapping it is safe to scan the children. */ - max = pci_scan_bus(link, 0x00, ((next_unitid - 1) << 3) | 7, 0); - } - } - } - return max; -}
static struct device_operations northbridge_operations = { .read_resources = read_resources, .set_resources = set_resources, .enable_resources = pci_dev_enable_resources, .init = northbridge_init, - .scan_bus = scan_chains, .enable = 0, .ops_pci = 0, };
-
Martin Roth