diff options
| author | Liu Tao <liutao1980@gmail.com> | 2010-10-17 21:34:45 +0000 |
|---|---|---|
| committer | Uwe Hermann <uwe@hermann-uwe.de> | 2010-10-17 21:34:45 +0000 |
| commit | dfecd2740b9ecc6950bf08b8b40573158541d56a (patch) | |
| tree | ed2f1a6b61078f117b2b0a9d45f75eaa2a96aeb6 /src | |
| parent | c6a106286bb30bd0532ffdd2443e8add52072967 (diff) | |
We currently read the CPU HT speed from HT chain 0's register.
Fix that to read the register from the chain where the SB chip is on.
Signed-off-by: Liu Tao <liutao1980@gmail.com>
Acked-by: Myles Watson <mylesgw@gmail.com>
Acked-by: Uwe Hermann <uwe@hermann-uwe.de>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5958 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
Diffstat (limited to 'src')
| -rw-r--r-- | src/southbridge/amd/rs780/rs780_gfx.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/src/southbridge/amd/rs780/rs780_gfx.c b/src/southbridge/amd/rs780/rs780_gfx.c index 7208acd864..1667775658 100644 --- a/src/southbridge/amd/rs780/rs780_gfx.c +++ b/src/southbridge/amd/rs780/rs780_gfx.c @@ -304,7 +304,7 @@ static void internal_gfx_pci_dev_init(struct device *dev) volatile u32 * pointer; int i; u16 command; - u32 value; + u32 value, sblink; u16 deviceid, vendorid; device_t nb_dev = dev_find_slot(0, 0); device_t k8_f2 = dev_find_slot(0, PCI_DEVFN(0x18, 2)); @@ -453,9 +453,15 @@ static void internal_gfx_pci_dev_init(struct device *dev) vgainfo.usMinNBVoltage = 0; vgainfo.usBootUpNBVoltage = 0x1a; + /* Get SBLink value (HyperTransport I/O Hub Link ID). */ + value = pci_read_config32(k8_f0, 0x64); + sblink = (value >> 8) & 0x3; + printk(BIOS_DEBUG, "SBLINK = %d.\n", sblink); + + /* HT speed */ value = pci_read_config32(nb_dev, 0xd0); printk(BIOS_DEBUG, "NB HT speed = %x.\n", value); - value = pci_read_config32(k8_f0, 0x88); + value = pci_read_config32(k8_f0, 0x88 + (sblink * 0x20)); printk(BIOS_DEBUG, "CPU HT speed = %x.\n", value); vgainfo.ulHTLinkFreq = 100 * 100; /* set HT speed. */ |