coreboot/default: Re-base all patches

There were a lot of unnecessary patches, such as the VRAM
patches; as Nicholas Chin has explained to me, the drivers
for these machines will just allocate what RAM they want
anyway, so in a lot of cases the extra allocated Video RAM
simply reduces the total amount of memory for other uses.

In general, we have a lot of patches that have existed for
years. A much more aggressive sweep will be done in the next
major audit, especially when the revisions are updated again.

Signed-off-by: Leah Rowe <leah@libreboot.org>

1 files changed, 435 insertions, 0 deletions

diff --git a/config/coreboot/default/patches/0010-mb-dell-Add-Latitude-E6420-Sandy-Bridge.patch b/config/coreboot/default/patches/0010-mb-dell-Add-Latitude-E6420-Sandy-Bridge.patch
new file mode 100644
index 00000000..80b2c147
--- /dev/null
+++ b/config/coreboot/default/patches/0010-mb-dell-Add-Latitude-E6420-Sandy-Bridge.patch
@@ -0,0 +1,435 @@
+From 200668a694f1c534a94a0bc8996416e246fe91b0 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 10/51] 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$VRQ8REf2*1+lTFH0=UkNx+eN|1rVyipl)Du=h=@%w+iQZG
+zT6@-PdW^oyFb44AG`HMZWEnP{&OQ+jC`N4emoS)x;EPN}uaSFOf-Mn8JRRO&LTWJc
+zn6%=L94~PR)%Ua_HTZcfTXD<p{%8p|<N<;Efw$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
+