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authorRudolf Marek <r.marek@assembler.cz>2008-03-15 00:19:34 +0000
committerRudolf Marek <r.marek@assembler.cz>2008-03-15 00:19:34 +0000
commitdd52e17448b2a8b49c1add655aa3deb3adebbcbc (patch)
tree9152f9d191875ea3f4e0ac33ba1043672110f000 /src
parent1ce63770a1d18baa41a6382236350814d36895ef (diff)
Following patch fixes the retrain/reset sequence which caused problem with some
nVidia cards. The enable link should be enough, retrain is done there. Tested on my system. Signed-off-by: Rudolf Marek <r.marek@assembler.cz> Acked-by: Uwe Hermann <uwe@hermann-uwe.de> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@3147 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
Diffstat (limited to 'src')
-rw-r--r--src/southbridge/via/k8t890/k8t890_pcie.c26
1 files changed, 0 insertions, 26 deletions
diff --git a/src/southbridge/via/k8t890/k8t890_pcie.c b/src/southbridge/via/k8t890/k8t890_pcie.c
index 7dcc5af09b..6a7acbbfed 100644
--- a/src/southbridge/via/k8t890/k8t890_pcie.c
+++ b/src/southbridge/via/k8t890/k8t890_pcie.c
@@ -41,8 +41,6 @@ static void peg_init(struct device *dev)
* pci_write_config8(dev, 0xe2, 0x0);
* pci_write_config8(dev, 0xe3, 0x92);
*/
- /* Disable scrambling bit 6 to 1. */
- pci_write_config8(dev, 0xc0, 0x43);
/* Set replay timer limit. */
pci_write_config8(dev, 0xb1, 0xf0);
@@ -62,18 +60,6 @@ static void peg_init(struct device *dev)
reg = pci_read_config8(dev, 0x50);
pci_write_config8(dev, 0x50, reg & ~0x10);
- /* Retrain link. */
- reg = pci_read_config8(dev, 0x50);
- pci_write_config8(dev, 0x50, reg | 0x20);
-
- reg = pci_read_config8(dev, 0x3e);
- reg |= 0x40; /* Bus reset. */
- pci_write_config8(dev, 0x3e, reg);
-
- reg = pci_read_config8(dev, 0x3e);
- reg &= ~0x40; /* Clear reset. */
- pci_write_config8(dev, 0x3e, reg);
-
dump_south(dev);
}
@@ -97,18 +83,6 @@ static void pcie_init(struct device *dev)
reg = pci_read_config8(dev, 0x50);
pci_write_config8(dev, 0x50, reg & ~0x10);
- /* Retrain. */
- reg = pci_read_config8(dev, 0x50);
- pci_write_config8(dev, 0x50, reg | 0x20);
-
- reg = pci_read_config8(dev, 0x3e);
- reg |= 0x40; /* Bus reset. */
- pci_write_config8(dev, 0x3e, reg);
-
- reg = pci_read_config8(dev, 0x3e);
- reg &= ~0x40; /* Clear reset. */
- pci_write_config8(dev, 0x3e, reg);
-
dump_south(dev);
}