diff options
Diffstat (limited to 'src/northbridge/amd/amdht/h3ncmn.c')
| -rw-r--r-- | src/northbridge/amd/amdht/h3ncmn.c | 30 |
1 files changed, 28 insertions, 2 deletions
diff --git a/src/northbridge/amd/amdht/h3ncmn.c b/src/northbridge/amd/amdht/h3ncmn.c index ac7d393b24..01c0e48d0c 100644 --- a/src/northbridge/amd/amdht/h3ncmn.c +++ b/src/northbridge/amd/amdht/h3ncmn.c @@ -47,8 +47,9 @@ #define REG_NODE_ID_0X60 0x60 #define REG_UNIT_ID_0X64 0x64 #define REG_LINK_TRANS_CONTROL_0X68 0x68 -#define REG_LINK_INIT_CONTROL_0X6C 0x6C +#define REG_LINK_INIT_CONTROL_0X6C 0x6c #define REG_HT_CAP_BASE_0X80 0x80 +#define REG_NORTHBRIDGE_CFG_3X8C 0x8c #define REG_HT_LINK_RETRY0_0X130 0x130 #define REG_HT_TRAFFIC_DIST_0X164 0x164 #define REG_HT_LINK_EXT_CONTROL0_0X170 0x170 @@ -87,6 +88,21 @@ *** FAMILY/NORTHBRIDGE SPECIFIC FUNCTIONS *** ***************************************************************************/ +static inline uint8_t is_fam15h(void) +{ + uint8_t fam15h = 0; + uint32_t family; + + family = cpuid_eax(0x80000001); + family = ((family & 0xf00000) >> 16) | ((family & 0xf00) >> 8); + + if (family >= 0x6f) + /* Family 15h or later */ + fam15h = 1; + + return fam15h; +} + /***************************************************************************//** * * SBDFO @@ -215,8 +231,18 @@ static void writeRoutingTable(u8 node, u8 target, u8 link, cNorthBridge *nb) static void writeNodeID(u8 node, u8 nodeID, cNorthBridge *nb) { - u32 temp = nodeID; + u32 temp; ASSERT((node < nb->maxNodes) && (nodeID < nb->maxNodes)); + if (is_fam15h()) { + temp = 1; + AmdPCIWriteBits(MAKE_SBDFO(makePCISegmentFromNode(node), + makePCIBusFromNode(node), + makePCIDeviceFromNode(node), + CPU_NB_FUNC_03, + REG_NORTHBRIDGE_CFG_3X8C), + 22, 22, &temp); + } + temp = nodeID; AmdPCIWriteBits(MAKE_SBDFO(makePCISegmentFromNode(node), makePCIBusFromNode(node), makePCIDeviceFromNode(node), |