diff options
Diffstat (limited to 'resources/libreboot/patch/coreboot/369b561315ca68d0cdedc38208105a513c7139b5/grub/kcma-d8/0042-cpu-amd-fam10h-15h-Set-PowerStepUp-PowerStepDown-on-.patch')
| -rw-r--r-- | resources/libreboot/patch/coreboot/369b561315ca68d0cdedc38208105a513c7139b5/grub/kcma-d8/0042-cpu-amd-fam10h-15h-Set-PowerStepUp-PowerStepDown-on-.patch | 131 |
1 files changed, 131 insertions, 0 deletions
diff --git a/resources/libreboot/patch/coreboot/369b561315ca68d0cdedc38208105a513c7139b5/grub/kcma-d8/0042-cpu-amd-fam10h-15h-Set-PowerStepUp-PowerStepDown-on-.patch b/resources/libreboot/patch/coreboot/369b561315ca68d0cdedc38208105a513c7139b5/grub/kcma-d8/0042-cpu-amd-fam10h-15h-Set-PowerStepUp-PowerStepDown-on-.patch new file mode 100644 index 0000000..e95630f --- /dev/null +++ b/resources/libreboot/patch/coreboot/369b561315ca68d0cdedc38208105a513c7139b5/grub/kcma-d8/0042-cpu-amd-fam10h-15h-Set-PowerStepUp-PowerStepDown-on-.patch @@ -0,0 +1,131 @@ +From ed0e74f934203d11e90c227f6a2bcabd62262952 Mon Sep 17 00:00:00 2001 +From: Timothy Pearson <tpearson@raptorengineeringinc.com> +Date: Tue, 24 Nov 2015 14:12:07 -0600 +Subject: [PATCH 42/45] cpu/amd/fam10h-15h: Set PowerStepUp/PowerStepDown on + Fam15h + +Multilink Family 15h processors were being configured with an +incorrect PowerStepUp/PowerStepDown value. Set the value +according to the BKDG, and clean up the terrible formatting +of the power_up_down() function that led to the incorrect +values being overlooked until now. + +Signed-off-by: Timothy Pearson <tpearson@raptorengineeringinc.com> +--- + src/cpu/amd/family_10h-family_15h/fidvid.c | 96 ++++++++++++++++-------------- + 1 file changed, 50 insertions(+), 46 deletions(-) + +diff --git a/src/cpu/amd/family_10h-family_15h/fidvid.c b/src/cpu/amd/family_10h-family_15h/fidvid.c +index 2edb75e..5bef7d3 100644 +--- a/src/cpu/amd/family_10h-family_15h/fidvid.c ++++ b/src/cpu/amd/family_10h-family_15h/fidvid.c +@@ -390,56 +390,60 @@ static u32 nb_clk_did(uint8_t node, uint64_t cpuRev, uint8_t procPkg) { + + + static u32 power_up_down(int node, u8 procPkg) { +- u32 dword=0; +- /* 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 +- 3 cores - 133nS -> 100nS - 0011b +- 4 cores - 100nS - 0011b ++ uint32_t dword=0; ++ /* 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 + */ +- switch (get_core_num_in_bsp(node)) { +- case 0: +- dword |= PW_STP_UP400 | PW_STP_DN400; +- break; +- case 1: +- case 2: +- dword |= PW_STP_UP200 | PW_STP_DN200; +- break; +- case 3: +- dword |= PW_STP_UP100 | PW_STP_DN100; +- break; +- default: ++ dword |= PW_STP_UP50 | PW_STP_DN50; ++ } else { ++ uint32_t dispRefModeEn = (pci_read_config32(NODE_PCI(node,0),0x68) >> 24) & 1; ++ uint32_t 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 (is_fam15h()) { ++ /* Family 15h always uses 100ns for multilink processors */ + dword |= PW_STP_UP100 | PW_STP_DN100; +- break; ++ } else 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 ++ * 3 cores - 133nS -> 100nS - 0011b ++ * 4 cores - 100nS - 0011b ++ */ ++ switch (get_core_num_in_bsp(node)) { ++ case 0: ++ dword |= PW_STP_UP400 | PW_STP_DN400; ++ break; ++ case 1: ++ case 2: ++ dword |= PW_STP_UP200 | PW_STP_DN200; ++ break; ++ case 3: ++ dword |= PW_STP_UP100 | PW_STP_DN100; ++ break; ++ default: ++ dword |= PW_STP_UP100 | PW_STP_DN100; ++ break; ++ } + } +- } + } +- return dword; ++ ++ return dword; + } + + static void config_clk_power_ctrl_reg0(uint8_t node, uint64_t cpuRev, uint8_t procPkg) { +-- +2.1.4 + |