diff options
Diffstat (limited to 'config/coreboot/default/patches/0020-mb-dell-Add-Latitude-E6420-Sandy-Bridge.patch')
| -rw-r--r-- | config/coreboot/default/patches/0020-mb-dell-Add-Latitude-E6420-Sandy-Bridge.patch | 435 |
1 files changed, 435 insertions, 0 deletions
diff --git a/config/coreboot/default/patches/0020-mb-dell-Add-Latitude-E6420-Sandy-Bridge.patch b/config/coreboot/default/patches/0020-mb-dell-Add-Latitude-E6420-Sandy-Bridge.patch new file mode 100644 index 00000000..e42b7c9a --- /dev/null +++ b/config/coreboot/default/patches/0020-mb-dell-Add-Latitude-E6420-Sandy-Bridge.patch @@ -0,0 +1,435 @@ +From e5ed7361d41b89ee38b572beb921924b33cc174d Mon Sep 17 00:00:00 2001 +From: Nicholas Chin <nic.c3.14@gmail.com> +Date: Sun, 26 Nov 2023 17:08:52 -0700 +Subject: [PATCH 20/65] mb/dell: Add Latitude E6420 (Sandy Bridge) + +Mainboard is PAL50/LA-6591P (UMA). The version with an Nvidia dGPU was +not tested. I do not physically have this system; someone with physical +access to one sent me the output of autoport which I then modified to +produce this port. I was also sent the VBT binary, which was obtained +from `/sys/kernel/debug/dri/0/i915_vbt` while running version A25 of the +vendor firmware. + +This was originally tested and found to be working as a standalone board +port in Libreboot, but this variant based port in upstream coreboot has +not been tested. + +This can be internally flashed by sending a command to the EC, which +causes the EC to pull the FDO pin low and the firmware to skip setting +up any chipset based write protections [1]. The EC is the SMSC MEC5055, +which seems to be compatible with the existing MEC5035 code. + +[1] https://gitlab.com/nic3-14159/dell-flash-unlock + +Change-Id: Ic48d9ea58172a5b13958c8afebcb19c8929c4394 +Signed-off-by: Nicholas Chin <nic.c3.14@gmail.com> +--- + src/mainboard/dell/snb_ivb_latitude/Kconfig | 13 +- + .../dell/snb_ivb_latitude/Kconfig.name | 3 + + .../snb_ivb_latitude/variants/e6420/data.vbt | Bin 0 -> 6144 bytes + .../variants/e6420/early_init.c | 14 ++ + .../snb_ivb_latitude/variants/e6420/gpio.c | 191 ++++++++++++++++++ + .../variants/e6420/hda_verb.c | 32 +++ + .../variants/e6420/overridetree.cb | 35 ++++ + 7 files changed, 287 insertions(+), 1 deletion(-) + create mode 100644 src/mainboard/dell/snb_ivb_latitude/variants/e6420/data.vbt + create mode 100644 src/mainboard/dell/snb_ivb_latitude/variants/e6420/early_init.c + create mode 100644 src/mainboard/dell/snb_ivb_latitude/variants/e6420/gpio.c + create mode 100644 src/mainboard/dell/snb_ivb_latitude/variants/e6420/hda_verb.c + create mode 100644 src/mainboard/dell/snb_ivb_latitude/variants/e6420/overridetree.cb + +diff --git a/src/mainboard/dell/snb_ivb_latitude/Kconfig b/src/mainboard/dell/snb_ivb_latitude/Kconfig +index 183a67bec3..d2786970ee 100644 +--- a/src/mainboard/dell/snb_ivb_latitude/Kconfig ++++ b/src/mainboard/dell/snb_ivb_latitude/Kconfig +@@ -17,6 +17,12 @@ config BOARD_DELL_SNB_IVB_LATITUDE_COMMON + select SYSTEM_TYPE_LAPTOP + select USE_NATIVE_RAMINIT + ++config BOARD_DELL_LATITUDE_E6420 ++ select BOARD_DELL_SNB_IVB_LATITUDE_COMMON ++ select BOARD_ROMSIZE_KB_10240 ++ select MAINBOARD_USES_IFD_GBE_REGION ++ select SOUTHBRIDGE_INTEL_BD82X6X ++ + config BOARD_DELL_LATITUDE_E5530 + select BOARD_DELL_SNB_IVB_LATITUDE_COMMON + select BOARD_ROMSIZE_KB_12288 +@@ -43,6 +49,7 @@ config MAINBOARD_DIR + default "dell/snb_ivb_latitude" + + config MAINBOARD_PART_NUMBER ++ default "Latitude E6420" if BOARD_DELL_LATITUDE_E6420 + default "Latitude E5530" if BOARD_DELL_LATITUDE_E5530 + default "Latitude E6430" if BOARD_DELL_LATITUDE_E6430 + default "Latitude E6530" if BOARD_DELL_LATITUDE_E6530 +@@ -54,11 +61,15 @@ config USBDEBUG_HCD_INDEX + default 2 + + config VARIANT_DIR ++ default "e6420" if BOARD_DELL_LATITUDE_E6420 + default "e5530" if BOARD_DELL_LATITUDE_E5530 + default "e6430" if BOARD_DELL_LATITUDE_E6430 + default "e6530" if BOARD_DELL_LATITUDE_E6530 + + config VGA_BIOS_ID +- default "8086,0166" ++ default "8086,0166" if BOARD_DELL_LATITUDE_E5530 ++ default "8086,0126" if BOARD_DELL_LATITUDE_E6420 ++ default "8086,0166" if BOARD_DELL_LATITUDE_E6430 \ ++ || BOARD_DELL_LATITUDE_E6530 + + endif +diff --git a/src/mainboard/dell/snb_ivb_latitude/Kconfig.name b/src/mainboard/dell/snb_ivb_latitude/Kconfig.name +index c15ef4028f..257d428a70 100644 +--- a/src/mainboard/dell/snb_ivb_latitude/Kconfig.name ++++ b/src/mainboard/dell/snb_ivb_latitude/Kconfig.name +@@ -1,5 +1,8 @@ + ## SPDX-License-Identifier: GPL-2.0-only + ++config BOARD_DELL_LATITUDE_E6420 ++ bool "Latitude E6420" ++ + config BOARD_DELL_LATITUDE_E5530 + bool "Latitude E5530" + +diff --git a/src/mainboard/dell/snb_ivb_latitude/variants/e6420/data.vbt b/src/mainboard/dell/snb_ivb_latitude/variants/e6420/data.vbt +new file mode 100644 +index 0000000000000000000000000000000000000000..d3662eea1bc78b60be6d0bd2cc38bb46b654afbd +GIT binary patch +literal 6144 +zcmeHKeQZ-z6hE);wSBvNZ|mO1=*HLC2BQN8uVX6{N9eY)75ORymb$R8!YYuAZEgeE +zKk|S@Fen*n41W-viAF;r%)~^EkpLz-B{2q##)LmGAtoY;7*Qhv_1yPbw$TC$2}G0K +z=6Ao&x#ym9?z!i_&TOh(kLzky2cN8MTpny#R<;VU4Rkn?rBIz(YL~BBw<%b&zGhSH +z$~AQ>@D0d=Xx6RE0BwSxspWdrW9y<FZGD@&x3_JL;p$p!;!BVdcKLkht0=-%(Jj&T +z_GkyztZ%>#t7^)^(T-R<7W?O6ZTI%A+j=`<Jw3Q%dk6N!da<_?7oyiU3)^<~_TiSk +zE$y+=RK3PGQ`gzmXYPRBx>C|f*UP9{h|4>ANrAe~?ymV*)83AaT#FuTjP=C2cg5P~ +zt4w78r$t#300cWY_k)mevmAmFI3&oBfytoAAPQiYK$XEIgHwV@5-gJ-Q-*p8yfTDj +zaDz=1Y!X1B3`OpQ&Ik}bM|0xHn0gYNZw0rT=7AXS2in-q8K^?)0|el+Z6geW7i7MM +zv~!|>HqL-|Fk}EYOa@)R<X)VQ7c}d8R1b@RTn5rq(90|QRg0?wwZZz(6Dz}w>zg9Y +z8;!mD_V*XSjT33~$`o`s>zEGBq8AQ`HaH?y!Fh2QiX1v@aCo4LaENf&DZ_cE2A2qb +z5@cC}X)=S^1RvpXLWs~v*hqMau$!=t@B-mg!XV)|;eEm>!Z6`H;R4|&!d1d`f|S7^ +zli+B98*!TfPE&6~NVM5j3v{N3OTjpnm_L@BPh(}esd(J!gj?~iJP?n|OZZOiTqlql +zg<NWR@g&-*W-E%A7|*1Z_`sVO$K&iAP+VIj9{<1hT%SXsK}IBk8!daftR`6-)EUiS +zvv*HR(#-ZwhA~7wcmxbe4%E?Y7P0y{1q|nqR1L29UR8v@#No^g5MH)7!>{%-$T|cR +zZx5|xm>Fl>;@$m};P{0WC>O~<Nl1`*PLgPN_hP2a^h+L$ls&SYrkDYr+&l*%%S?^Q +ziPSdtHE<LNEnr7cs=ihL-C>-p>*$9CpHRLgN|POkqD^UP4nw|4nf0bc8MOBk<;%js +zfpCAWNzqSPlz@X%j9CGrwZDKUl@K{g6pzqiIIARDQ)#@^RW&0pmNG;XZ?!SlHB?L# +zKRAMgq(R;aQd%@Gy38-LS@ix)fR**(P3B9wI=Uk^&cWmmwB<vf21<0#LBA!;qtAh( +zYe5g_T{+gw^mi8QzPPraBoH~8oCz%r=$nVi1A)`Y8IKqIdqm6MihqxtpFaTggaPxu +zQP07nf#&kPkPp}Cmk$F1g7q7QK;kz~80i&oDN}~wYbPUI6AtG5H+$T!@f5FzUhp21 +z^XiPT3rb%B@sA9g!n88R7BOsLS|?+D3}0v3dyIX|@JFWo&e%<c#V)PV#g@7-=F*;V +zvAr&Q+ogTvVxPM3XP5Smi`f;Nt7uCU)}Y`HMcbpW=M_AuXlE35PQl+4O{7m66&I@7 +zGL@}Sai^*sP}va`KTx$VRQ8REf2*1+lTFH0=UkNx+eN|1rVyipl)Du=h=@%w+iQZG +zT6@-PdW^oyFb44AG`HMZWEnP{&OQ+jC`N4emoS)x;EPN}uaSFOf-Mn8JRRO<WJc +zn6%=L94~PR)%Ua_HTZcfTXD<p{%8p|<N<;Efw$Zb4$}{m8@7c((~<7^thaau&@Wx# +zVGNL)lmH@{o=h*{muXGc!;nXrVgpp3;1V1stMj=4AtxyzX+?SoB~zN}!*r?9Qvs1P +zmV_(CTmt0sY&6=F=_M>E34GYvuh1uQF+BUdWyQC5SaEM1QvKlHBMs13C}n{0SwRxW +ziekMa&kvRFruRcKCevGy5)TxUBDlur@E{TtQ^NQ>nO+Cgl)&Ga(PxqVW?e3TLH-UY +zdL3T{z^xdd`$(STFUb8R*cKa}r>n{Wk+MXRH~o-hN}#9OF*>T#>rfhiRs(Wc-R^9@ +z%F=<}dn(E}ADc03zJ>JvZe;_8f+WFLL4%qNYs`_aa`a$Pl5H;iO^Wt*cP3W(d=(g} +zZ%nKT1$|r-tAv8($u2-BI2Uiz#%OT&!Q3b~Ru2P2j;Gem!@wfPsTR%J>W{8z)oq^J +k^Qm&?O@bFkw4CTocwoW<6CRlGz=Q`TJTT#bN9KWl0rH4|j{pDw + +literal 0 +HcmV?d00001 + +diff --git a/src/mainboard/dell/snb_ivb_latitude/variants/e6420/early_init.c b/src/mainboard/dell/snb_ivb_latitude/variants/e6420/early_init.c +new file mode 100644 +index 0000000000..ff83db095b +--- /dev/null ++++ b/src/mainboard/dell/snb_ivb_latitude/variants/e6420/early_init.c +@@ -0,0 +1,14 @@ ++/* SPDX-License-Identifier: GPL-2.0-only */ ++ ++#include <bootblock_common.h> ++#include <device/pci_ops.h> ++#include <ec/dell/mec5035/mec5035.h> ++#include <southbridge/intel/bd82x6x/pch.h> ++ ++void bootblock_mainboard_early_init(void) ++{ ++ pci_write_config16(PCH_LPC_DEV, LPC_EN, CNF1_LPC_EN | MC_LPC_EN ++ | KBC_LPC_EN | FDD_LPC_EN | LPT_LPC_EN ++ | COMB_LPC_EN | COMA_LPC_EN); ++ mec5035_early_init(); ++} +diff --git a/src/mainboard/dell/snb_ivb_latitude/variants/e6420/gpio.c b/src/mainboard/dell/snb_ivb_latitude/variants/e6420/gpio.c +new file mode 100644 +index 0000000000..943c743f48 +--- /dev/null ++++ b/src/mainboard/dell/snb_ivb_latitude/variants/e6420/gpio.c +@@ -0,0 +1,191 @@ ++/* SPDX-License-Identifier: GPL-2.0-only */ ++ ++#include <southbridge/intel/common/gpio.h> ++ ++static const struct pch_gpio_set1 pch_gpio_set1_mode = { ++ .gpio0 = GPIO_MODE_GPIO, ++ .gpio1 = GPIO_MODE_NATIVE, ++ .gpio2 = GPIO_MODE_GPIO, ++ .gpio3 = GPIO_MODE_NATIVE, ++ .gpio4 = GPIO_MODE_GPIO, ++ .gpio5 = GPIO_MODE_NATIVE, ++ .gpio6 = GPIO_MODE_GPIO, ++ .gpio7 = GPIO_MODE_GPIO, ++ .gpio8 = GPIO_MODE_GPIO, ++ .gpio9 = GPIO_MODE_NATIVE, ++ .gpio10 = GPIO_MODE_NATIVE, ++ .gpio11 = GPIO_MODE_NATIVE, ++ .gpio12 = GPIO_MODE_NATIVE, ++ .gpio13 = GPIO_MODE_GPIO, ++ .gpio14 = GPIO_MODE_GPIO, ++ .gpio15 = GPIO_MODE_GPIO, ++ .gpio16 = GPIO_MODE_GPIO, ++ .gpio17 = GPIO_MODE_GPIO, ++ .gpio18 = GPIO_MODE_NATIVE, ++ .gpio19 = GPIO_MODE_GPIO, ++ .gpio20 = GPIO_MODE_NATIVE, ++ .gpio21 = GPIO_MODE_GPIO, ++ .gpio22 = GPIO_MODE_GPIO, ++ .gpio23 = GPIO_MODE_NATIVE, ++ .gpio24 = GPIO_MODE_GPIO, ++ .gpio25 = GPIO_MODE_NATIVE, ++ .gpio26 = GPIO_MODE_NATIVE, ++ .gpio27 = GPIO_MODE_GPIO, ++ .gpio28 = GPIO_MODE_GPIO, ++ .gpio29 = GPIO_MODE_GPIO, ++ .gpio30 = GPIO_MODE_GPIO, ++ .gpio31 = GPIO_MODE_GPIO, ++}; ++ ++static const struct pch_gpio_set1 pch_gpio_set1_direction = { ++ .gpio0 = GPIO_DIR_INPUT, ++ .gpio2 = GPIO_DIR_INPUT, ++ .gpio4 = GPIO_DIR_INPUT, ++ .gpio6 = GPIO_DIR_INPUT, ++ .gpio7 = GPIO_DIR_INPUT, ++ .gpio8 = GPIO_DIR_INPUT, ++ .gpio13 = GPIO_DIR_INPUT, ++ .gpio14 = GPIO_DIR_INPUT, ++ .gpio15 = GPIO_DIR_INPUT, ++ .gpio16 = GPIO_DIR_INPUT, ++ .gpio17 = GPIO_DIR_INPUT, ++ .gpio19 = GPIO_DIR_INPUT, ++ .gpio21 = GPIO_DIR_INPUT, ++ .gpio22 = GPIO_DIR_INPUT, ++ .gpio24 = GPIO_DIR_INPUT, ++ .gpio27 = GPIO_DIR_INPUT, ++ .gpio28 = GPIO_DIR_INPUT, ++ .gpio29 = GPIO_DIR_INPUT, ++ .gpio30 = GPIO_DIR_OUTPUT, ++ .gpio31 = GPIO_DIR_INPUT, ++}; ++ ++static const struct pch_gpio_set1 pch_gpio_set1_level = { ++ .gpio30 = GPIO_LEVEL_HIGH, ++}; ++ ++static const struct pch_gpio_set1 pch_gpio_set1_reset = { ++}; ++ ++static const struct pch_gpio_set1 pch_gpio_set1_invert = { ++ .gpio0 = GPIO_INVERT, ++ .gpio8 = GPIO_INVERT, ++ .gpio14 = GPIO_INVERT, ++}; ++ ++static const struct pch_gpio_set1 pch_gpio_set1_blink = { ++}; ++ ++static const struct pch_gpio_set2 pch_gpio_set2_mode = { ++ .gpio32 = GPIO_MODE_NATIVE, ++ .gpio33 = GPIO_MODE_GPIO, ++ .gpio34 = GPIO_MODE_GPIO, ++ .gpio35 = GPIO_MODE_GPIO, ++ .gpio36 = GPIO_MODE_GPIO, ++ .gpio37 = GPIO_MODE_GPIO, ++ .gpio38 = GPIO_MODE_GPIO, ++ .gpio39 = GPIO_MODE_GPIO, ++ .gpio40 = GPIO_MODE_NATIVE, ++ .gpio41 = GPIO_MODE_NATIVE, ++ .gpio42 = GPIO_MODE_NATIVE, ++ .gpio43 = GPIO_MODE_NATIVE, ++ .gpio44 = GPIO_MODE_NATIVE, ++ .gpio45 = GPIO_MODE_GPIO, ++ .gpio46 = GPIO_MODE_NATIVE, ++ .gpio47 = GPIO_MODE_NATIVE, ++ .gpio48 = GPIO_MODE_GPIO, ++ .gpio49 = GPIO_MODE_GPIO, ++ .gpio50 = GPIO_MODE_NATIVE, ++ .gpio51 = GPIO_MODE_GPIO, ++ .gpio52 = GPIO_MODE_GPIO, ++ .gpio53 = GPIO_MODE_NATIVE, ++ .gpio54 = GPIO_MODE_GPIO, ++ .gpio55 = GPIO_MODE_NATIVE, ++ .gpio56 = GPIO_MODE_NATIVE, ++ .gpio57 = GPIO_MODE_GPIO, ++ .gpio58 = GPIO_MODE_NATIVE, ++ .gpio59 = GPIO_MODE_NATIVE, ++ .gpio60 = GPIO_MODE_GPIO, ++ .gpio61 = GPIO_MODE_NATIVE, ++ .gpio62 = GPIO_MODE_NATIVE, ++ .gpio63 = GPIO_MODE_NATIVE, ++}; ++ ++static const struct pch_gpio_set2 pch_gpio_set2_direction = { ++ .gpio33 = GPIO_DIR_INPUT, ++ .gpio34 = GPIO_DIR_OUTPUT, ++ .gpio35 = GPIO_DIR_INPUT, ++ .gpio36 = GPIO_DIR_INPUT, ++ .gpio37 = GPIO_DIR_INPUT, ++ .gpio38 = GPIO_DIR_INPUT, ++ .gpio39 = GPIO_DIR_INPUT, ++ .gpio45 = GPIO_DIR_OUTPUT, ++ .gpio48 = GPIO_DIR_INPUT, ++ .gpio49 = GPIO_DIR_OUTPUT, ++ .gpio51 = GPIO_DIR_INPUT, ++ .gpio52 = GPIO_DIR_INPUT, ++ .gpio54 = GPIO_DIR_INPUT, ++ .gpio57 = GPIO_DIR_INPUT, ++ .gpio60 = GPIO_DIR_OUTPUT, ++}; ++ ++static const struct pch_gpio_set2 pch_gpio_set2_level = { ++ .gpio34 = GPIO_LEVEL_HIGH, ++ .gpio45 = GPIO_LEVEL_LOW, ++ .gpio49 = GPIO_LEVEL_LOW, ++ .gpio60 = GPIO_LEVEL_HIGH, ++}; ++ ++static const struct pch_gpio_set2 pch_gpio_set2_reset = { ++}; ++ ++static const struct pch_gpio_set3 pch_gpio_set3_mode = { ++ .gpio64 = GPIO_MODE_NATIVE, ++ .gpio65 = GPIO_MODE_NATIVE, ++ .gpio66 = GPIO_MODE_NATIVE, ++ .gpio67 = GPIO_MODE_NATIVE, ++ .gpio68 = GPIO_MODE_GPIO, ++ .gpio69 = GPIO_MODE_GPIO, ++ .gpio70 = GPIO_MODE_GPIO, ++ .gpio71 = GPIO_MODE_GPIO, ++ .gpio72 = GPIO_MODE_NATIVE, ++ .gpio73 = GPIO_MODE_NATIVE, ++ .gpio74 = GPIO_MODE_NATIVE, ++ .gpio75 = GPIO_MODE_NATIVE, ++}; ++ ++static const struct pch_gpio_set3 pch_gpio_set3_direction = { ++ .gpio68 = GPIO_DIR_INPUT, ++ .gpio69 = GPIO_DIR_INPUT, ++ .gpio70 = GPIO_DIR_INPUT, ++ .gpio71 = GPIO_DIR_INPUT, ++}; ++ ++static const struct pch_gpio_set3 pch_gpio_set3_level = { ++}; ++ ++static const struct pch_gpio_set3 pch_gpio_set3_reset = { ++}; ++ ++const struct pch_gpio_map mainboard_gpio_map = { ++ .set1 = { ++ .mode = &pch_gpio_set1_mode, ++ .direction = &pch_gpio_set1_direction, ++ .level = &pch_gpio_set1_level, ++ .blink = &pch_gpio_set1_blink, ++ .invert = &pch_gpio_set1_invert, ++ .reset = &pch_gpio_set1_reset, ++ }, ++ .set2 = { ++ .mode = &pch_gpio_set2_mode, ++ .direction = &pch_gpio_set2_direction, ++ .level = &pch_gpio_set2_level, ++ .reset = &pch_gpio_set2_reset, ++ }, ++ .set3 = { ++ .mode = &pch_gpio_set3_mode, ++ .direction = &pch_gpio_set3_direction, ++ .level = &pch_gpio_set3_level, ++ .reset = &pch_gpio_set3_reset, ++ }, ++}; +diff --git a/src/mainboard/dell/snb_ivb_latitude/variants/e6420/hda_verb.c b/src/mainboard/dell/snb_ivb_latitude/variants/e6420/hda_verb.c +new file mode 100644 +index 0000000000..ede8445aaf +--- /dev/null ++++ b/src/mainboard/dell/snb_ivb_latitude/variants/e6420/hda_verb.c +@@ -0,0 +1,32 @@ ++/* SPDX-License-Identifier: GPL-2.0-only */ ++ ++#include <device/azalia_device.h> ++ ++const u32 cim_verb_data[] = { ++ 0x111d76e7, /* Codec Vendor / Device ID: IDT */ ++ 0x10280493, /* Subsystem ID */ ++ 11, /* Number of 4 dword sets */ ++ AZALIA_SUBVENDOR(0, 0x10280493), ++ AZALIA_PIN_CFG(0, 0x0a, 0x03a11020), ++ AZALIA_PIN_CFG(0, 0x0b, 0x0321101f), ++ AZALIA_PIN_CFG(0, 0x0c, 0x400000f0), ++ AZALIA_PIN_CFG(0, 0x0d, 0x90170110), ++ AZALIA_PIN_CFG(0, 0x0e, 0x23011050), ++ AZALIA_PIN_CFG(0, 0x0f, 0x23a1102e), ++ AZALIA_PIN_CFG(0, 0x10, 0x400000f3), ++ AZALIA_PIN_CFG(0, 0x11, 0xd5a30130), ++ AZALIA_PIN_CFG(0, 0x1f, 0x400000f0), ++ AZALIA_PIN_CFG(0, 0x20, 0x400000f0), ++ ++ 0x80862805, /* Codec Vendor / Device ID: Intel */ ++ 0x80860101, /* Subsystem ID */ ++ 4, /* Number of 4 dword sets */ ++ AZALIA_SUBVENDOR(3, 0x80860101), ++ AZALIA_PIN_CFG(3, 0x05, 0x18560010), ++ AZALIA_PIN_CFG(3, 0x06, 0x18560020), ++ AZALIA_PIN_CFG(3, 0x07, 0x18560030), ++}; ++ ++const u32 pc_beep_verbs[0] = {}; ++ ++AZALIA_ARRAY_SIZES; +diff --git a/src/mainboard/dell/snb_ivb_latitude/variants/e6420/overridetree.cb b/src/mainboard/dell/snb_ivb_latitude/variants/e6420/overridetree.cb +new file mode 100644 +index 0000000000..3012a3177f +--- /dev/null ++++ b/src/mainboard/dell/snb_ivb_latitude/variants/e6420/overridetree.cb +@@ -0,0 +1,35 @@ ++## SPDX-License-Identifier: GPL-2.0-or-later ++ ++chip northbridge/intel/sandybridge ++ device domain 0 on ++ subsystemid 0x1028 0x0493 inherit ++ ++ device ref igd on ++ register "gpu_cpu_backlight" = "0x0000054f" ++ register "gpu_pch_backlight" = "0x13121312" ++ end ++ ++ chip southbridge/intel/bd82x6x ++ register "usb_port_config" = "{ ++ { 1, 1, 0 }, ++ { 1, 1, 0 }, ++ { 1, 1, 1 }, ++ { 1, 1, 1 }, ++ { 1, 0, 2 }, ++ { 1, 1, 2 }, ++ { 1, 1, 3 }, ++ { 1, 1, 3 }, ++ { 1, 1, 5 }, ++ { 1, 1, 5 }, ++ { 1, 1, 7 }, ++ { 1, 1, 6 }, ++ { 1, 0, 6 }, ++ { 1, 0, 7 }, ++ }" ++ ++ device ref sata1 on ++ register "sata_port_map" = "0x3b" ++ end ++ end ++ end ++end +-- +2.39.5 + |