diff options
Diffstat (limited to 'src/cpu/amd')
| -rw-r--r-- | src/cpu/amd/model_10xxx/fidvid.c | 70 |
1 files changed, 55 insertions, 15 deletions
diff --git a/src/cpu/amd/model_10xxx/fidvid.c b/src/cpu/amd/model_10xxx/fidvid.c index 0a2220fa0c..4fec71542e 100644 --- a/src/cpu/amd/model_10xxx/fidvid.c +++ b/src/cpu/amd/model_10xxx/fidvid.c @@ -179,16 +179,51 @@ static void recalculateVsSlamTimeSettingOnCorePre(device_t dev) pci_write_config32(dev, 0xd8, dtemp); } -static u32 power_up_down(int node) { +static u32 nb_clk_did(int node, u32 cpuRev,u8 procPkg) { + u8 link0isGen3 = 0; + u8 offset; + if (AMD_CpuFindCapability(node, 0, &offset)) { + link0isGen3 = (AMD_checkLinkType(node, 0, offset) & HTPHY_LINKTYPE_HT3 ); + } + /* FIXME: NB_CLKDID should be 101b for AMD_DA_C2 in package + S1g3 in link Gen3 mode, but I don't know how to tell + package S1g3 from S1g4 */ + if ((cpuRev & AMD_DA_C2) && (procPkg & AMD_PKGTYPE_S1gX) + && link0isGen3) { + return 5 ; /* divide clk by 128*/ + } else { + return 4 ; /* divide clk by 16 */ + } +} + + +static u32 power_up_down(int node, u8 procPkg) { u32 dword=0; - /* check platform type */ - if (!(get_platform_type() & AMD_PTYPE_SVR)) { - /* For non-server platform - * PowerStepUp=01000b - 50nS - * PowerStepDown=01000b - 50ns - */ - dword |= PW_STP_UP50 | PW_STP_DN50 ; + /* from CPU rev guide #41322 rev 3.74 June 2010 Table 26 */ + u8 singleLinkFlag = ((procPkg == AMD_PKGTYPE_AM3_2r2) + || (procPkg == AMD_PKGTYPE_S1gX) + || (procPkg == AMD_PKGTYPE_ASB2)); + + if (singleLinkFlag) { + /* + * PowerStepUp=01000b - 50nS + * PowerStepDown=01000b - 50ns + */ + dword |= PW_STP_UP50 | PW_STP_DN50; } else { + u32 dispRefModeEn = (pci_read_config32(NODE_PCI(node,0),0x68) >> 24) & 1; + u32 isocEn = 0; + int j; + for(j=0 ; (j<4) && (!isocEn) ; j++ ) { + u8 offset; + if (AMD_CpuFindCapability(node, j, &offset)) { + isocEn = (pci_read_config32(NODE_PCI(node,0),offset+4) >>12) & 1; + } + } + + if (dispRefModeEn || isocEn) { + dword |= PW_STP_UP50 | PW_STP_DN50 ; + } else { /* get number of cores for PowerStepUp & PowerStepDown in server 1 core - 400nS - 0000b 2 cores - 200nS - 0010b @@ -210,28 +245,31 @@ static u32 power_up_down(int node) { dword |= PW_STP_UP100 | PW_STP_DN100; break; } + } } return dword; } -static void config_clk_power_ctrl_reg0(int node) { +static void config_clk_power_ctrl_reg0(int node, u32 cpuRev, u8 procPkg) { device_t dev = NODE_PCI(node, 3); - /* Program fields in Clock Power/Control register0 (F3xD4) */ /* set F3xD4 Clock Power/Timing Control 0 Register * NbClkDidApplyAll=1b - * NbClkDid=100b + * NbClkDid=100b or 101b * PowerStepUp= "platform dependent" * PowerStepDown= "platform dependent" * LinkPllLink=01b - * ClkRampHystSel=HW default + * ClkRampHystCtl=HW default + * ClkRampHystSel=1111b */ u32 dword= pci_read_config32(dev, 0xd4); dword &= CPTC0_MASK; - dword |= NB_CLKDID_ALL | NB_CLKDID | LNK_PLL_LOCK; /* per BKDG */ - dword |= power_up_down(node); + dword |= NB_CLKDID_ALL | LNK_PLL_LOCK | CLK_RAMP_HYST_SEL_VAL; + dword |= (nb_clk_did(node,cpuRev,procPkg) << NB_CLKDID_SHIFT); + + dword |= power_up_down(node, procPkg); pci_write_config32(dev, 0xd4, dword); @@ -296,13 +334,15 @@ static void prep_fid_change(void) for (i = 0; i < nodes; i++) { printk(BIOS_DEBUG, "Prep FID/VID Node:%02x \n", i); dev = NODE_PCI(i, 3); + u32 cpuRev = mctGetLogicalCPUID(0xFF) ; + u8 procPkg = mctGetProcessorPackageType(); setVSRamp(dev); /* BKDG r31116 2010-04-22 2.4.1.7 step b F3xD8[VSSlamTime] */ /* Figure out the value for VsSlamTime and program it */ recalculateVsSlamTimeSettingOnCorePre(dev); - config_clk_power_ctrl_reg0(i); + config_clk_power_ctrl_reg0(i,cpuRev,procPkg); config_power_ctrl_misc_reg(dev); |