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authorLiu Tao <liutao1980@gmail.com>2010-10-17 21:59:43 +0000
committerUwe Hermann <uwe@hermann-uwe.de>2010-10-17 21:59:43 +0000
commit676d0298a1d3853034d86053dd71d3b4065c4026 (patch)
tree352091b60ee711bf0318c10285bf52c77b148190 /src/southbridge/amd/rs690
parentdfecd2740b9ecc6950bf08b8b40573158541d56a (diff)
downloadcoreboot-676d0298a1d3853034d86053dd71d3b4065c4026.tar.xz
In the RS780/RS690 ProgK8TempMmioBase() function, the dst-link field is set
to zero, so for boards with RS780 not on CPU's HT chain 0, the function will mis-configure the MMIO dst-link routing, and the following enable_pcie_bar3() function will hang when it visits the MMIO. The following patch fixes the problem, and is tested on a K8 board with RS780 on HT chain 1. Signed-off-by: Liu Tao <liutao1980@gmail.com> Acked-by: Uwe Hermann <uwe@hermann-uwe.de> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5959 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
Diffstat (limited to 'src/southbridge/amd/rs690')
-rw-r--r--src/southbridge/amd/rs690/rs690_cmn.c14
1 files changed, 11 insertions, 3 deletions
diff --git a/src/southbridge/amd/rs690/rs690_cmn.c b/src/southbridge/amd/rs690/rs690_cmn.c
index dc34319e94..5e06d4f9d8 100644
--- a/src/southbridge/amd/rs690/rs690_cmn.c
+++ b/src/southbridge/amd/rs690/rs690_cmn.c
@@ -202,15 +202,23 @@ void ProgK8TempMmioBase(u8 in_out, u32 pcie_base_add, u32 mmio_base_add)
{
/* K8 Function1 is address map */
device_t k8_f1 = dev_find_slot(0, PCI_DEVFN(0x18, 1));
+ device_t k8_f0 = dev_find_slot(0, PCI_DEVFN(0x18, 0));
if (in_out) {
+ u32 dword, sblk;
+
+ /* Get SBLink value (HyperTransport I/O Hub Link ID). */
+ dword = pci_read_config32(k8_f0, 0x64);
+ sblk = (dword >> 8) & 0x3;
+
+ /* Fill MMIO limit/base pair. */
pci_write_config32(k8_f1, 0xbc,
(((pcie_base_add + 0x10000000 -
- 1) >> 8) & 0xffffff00) | 0x80);
+ 1) >> 8) & 0xffffff00) | 0x80 | (sblk << 4));
pci_write_config32(k8_f1, 0xb8, (pcie_base_add >> 8) | 0x3);
pci_write_config32(k8_f1, 0xb4,
- ((mmio_base_add + 0x10000000 -
- 1) >> 8) & 0xffffff00);
+ (((mmio_base_add + 0x10000000 -
+ 1) >> 8) & 0xffffff00) | (sblk << 4));
pci_write_config32(k8_f1, 0xb0, (mmio_base_add >> 8) | 0x3);
} else {
pci_write_config32(k8_f1, 0xb8, 0);