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, 438 insertions, 0 deletions

diff --git a/config/coreboot/default/patches/0015-mb-dell-Add-Latitude-E6220-Sandy-Bridge.patch b/config/coreboot/default/patches/0015-mb-dell-Add-Latitude-E6220-Sandy-Bridge.patch
new file mode 100644
index 00000000..e2be42c9
--- /dev/null
+++ b/config/coreboot/default/patches/0015-mb-dell-Add-Latitude-E6220-Sandy-Bridge.patch
@@ -0,0 +1,438 @@
+From a32431d5f7574ffa6391221c7740f1739203eaa7 Mon Sep 17 00:00:00 2001
+From: Nicholas Chin <nic.c3.14@gmail.com>
+Date: Fri, 8 Mar 2024 09:27:36 -0700
+Subject: [PATCH 15/51] mb/dell: Add Latitude E6220 (Sandy Bridge)
+
+Mainboard is codenamed Vida. 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. The VBT was obtained using
+intelvbttool while running version A14 (latest available version) of the
+vendor firmware.
+
+Tested and found to boot as part of a libreboot build based on upstream
+coreboot commit b7341da191 with additional patches, though these do not
+appear to affect SNB/IVB. The base E6430 patch was tested against
+coreboot main.
+
+The EC is the SMSC MEC5055, which seems to be compatible with the
+existing MEC5035 code. As with the other Dell systems with this EC, this
+board is assumed to be internally flashable using an EC command that
+tells it to pull the FDO pin low on the next boot, which also tells the
+vendor firmware to disable all write protections to the flash [1].
+
+[1] https://gitlab.com/nic3-14159/dell-flash-unlock
+
+Change-Id: I570023b0837521b75aac6d5652c74030c06b8a4c
+Signed-off-by: Nicholas Chin <nic.c3.14@gmail.com>
+---
+ src/mainboard/dell/snb_ivb_latitude/Kconfig   |   9 +
+ .../dell/snb_ivb_latitude/Kconfig.name        |   3 +
+ .../snb_ivb_latitude/variants/e6220/data.vbt  | Bin 0 -> 3985 bytes
+ .../variants/e6220/early_init.c               |  14 ++
+ .../snb_ivb_latitude/variants/e6220/gpio.c    | 192 ++++++++++++++++++
+ .../variants/e6220/hda_verb.c                 |  32 +++
+ .../variants/e6220/overridetree.cb            |  37 ++++
+ 7 files changed, 287 insertions(+)
+ create mode 100644 src/mainboard/dell/snb_ivb_latitude/variants/e6220/data.vbt
+ create mode 100644 src/mainboard/dell/snb_ivb_latitude/variants/e6220/early_init.c
+ create mode 100644 src/mainboard/dell/snb_ivb_latitude/variants/e6220/gpio.c
+ create mode 100644 src/mainboard/dell/snb_ivb_latitude/variants/e6220/hda_verb.c
+ create mode 100644 src/mainboard/dell/snb_ivb_latitude/variants/e6220/overridetree.cb
+
+diff --git a/src/mainboard/dell/snb_ivb_latitude/Kconfig b/src/mainboard/dell/snb_ivb_latitude/Kconfig
+index 84ffe1d33a..baa83baa41 100644
+--- a/src/mainboard/dell/snb_ivb_latitude/Kconfig
++++ b/src/mainboard/dell/snb_ivb_latitude/Kconfig
+@@ -27,6 +27,12 @@ config BOARD_DELL_LATITUDE_E5520
+ 	select BOARD_ROMSIZE_KB_6144
+ 	select SOUTHBRIDGE_INTEL_BD82X6X
+ 
++config BOARD_DELL_LATITUDE_E6220
++	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_E6320
+ 	select BOARD_DELL_SNB_IVB_LATITUDE_COMMON
+ 	select BOARD_ROMSIZE_KB_10240
+@@ -73,6 +79,7 @@ config MAINBOARD_DIR
+ config MAINBOARD_PART_NUMBER
+ 	default "Latitude E5420" if BOARD_DELL_LATITUDE_E5420
+ 	default "Latitude E5520" if BOARD_DELL_LATITUDE_E5520
++	default "Latitude E6220" if BOARD_DELL_LATITUDE_E6220
+ 	default "Latitude E6320" if BOARD_DELL_LATITUDE_E6320
+ 	default "Latitude E6420" if BOARD_DELL_LATITUDE_E6420
+ 	default "Latitude E6520" if BOARD_DELL_LATITUDE_E6520
+@@ -89,6 +96,7 @@ config USBDEBUG_HCD_INDEX
+ config VARIANT_DIR
+ 	default "e5420" if BOARD_DELL_LATITUDE_E5420
+ 	default "e5520" if BOARD_DELL_LATITUDE_E5520
++	default "e6220" if BOARD_DELL_LATITUDE_E6220
+ 	default "e6320" if BOARD_DELL_LATITUDE_E6320
+ 	default "e6420" if BOARD_DELL_LATITUDE_E6420
+ 	default "e6520" if BOARD_DELL_LATITUDE_E6520
+@@ -102,6 +110,7 @@ config VGA_BIOS_ID
+ 	default "8086,0166" if BOARD_DELL_LATITUDE_E5530
+ 	default "8086,0126" if BOARD_DELL_LATITUDE_E6420 \
+ 		|| BOARD_DELL_LATITUDE_E5520 \
++		|| BOARD_DELL_LATITUDE_E6220 \
+ 		|| BOARD_DELL_LATITUDE_E6320
+ 	default "8086,0166" if BOARD_DELL_LATITUDE_E6430 \
+ 		|| BOARD_DELL_LATITUDE_E6530
+diff --git a/src/mainboard/dell/snb_ivb_latitude/Kconfig.name b/src/mainboard/dell/snb_ivb_latitude/Kconfig.name
+index ef6a1329a9..349ee7f79e 100644
+--- a/src/mainboard/dell/snb_ivb_latitude/Kconfig.name
++++ b/src/mainboard/dell/snb_ivb_latitude/Kconfig.name
+@@ -6,6 +6,9 @@ config BOARD_DELL_LATITUDE_E5420
+ config BOARD_DELL_LATITUDE_E5520
+ 	bool "Latitude E5520"
+ 
++config BOARD_DELL_LATITUDE_E6220
++	bool "Latitude E6220"
++
+ config BOARD_DELL_LATITUDE_E6320
+ 	bool "Latitude E6320"
+ 
+diff --git a/src/mainboard/dell/snb_ivb_latitude/variants/e6220/data.vbt b/src/mainboard/dell/snb_ivb_latitude/variants/e6220/data.vbt
+new file mode 100644
+index 0000000000000000000000000000000000000000..548075a74500b5d159108089ee29cff802d07db7
+GIT binary patch
+literal 3985
+zcmdT{eP|p-6#wn*-rZ(yH@R-odPzTgZQ6LXjonL|7&YQ0xu#d`$C=h}21|4GP8*0x
+zyjE@hv0Dv(P?c0g{G(_DMJZ@22r8oZ0U9lcR8a)~s33wOSg|T<^?b8?XBzL?#)6`A
+z{N~Nfd-LYan>TOv7WZ{+rcIq264!S1u1&02-MpSC3mf}u-r~BvbgkXEX=|c$bLZBs
+zbsM{{q9-s1nVR3f2C|A`nJsqvC7UwC+1=angV`H%w4sao<P?&OTVpYbtz1OwGuLN^
+zhBCv{M16zV3^h|KGn^Zu#@6L@%V;*UGnb`pgTtBpU~UJE3=i!tH{%>fx<^KL=Lc`x
+zzLTQeOW7vdZsuwwtsUOU>vxajM=zqzp&{y(GCQa@w<DLoHJ81}6s7=PS9MJR6hDG@
+zLaF+#1qlrS4OKdX4nv2kz^}p75z-OVFk8cF4b?h&G(>eIb%fzF6`uwy)UhaB+ynus
+zBRr-~^|__t=m5fD9tR81r@XLV3UEc-2I6>o`;@@MXS$rj)&)r+pA?|K2vh+9SHM=N
+zw3d{Uh1~iK)juV`E`v4?cFU@^_DehBU5TFLmFrTyoBPuJ*ExIdxO1!lC!eceSG8i}
+z&A<Zmt5Mvo`mkSZ$5C|>ivl*T2}Cf;*vEJvsN-nR!WWDm8M<y^zAkV9BgVLlk!18T
+zu4CN5*u}VmaUbIm#suRa;|0cRj7i2(#%GK#8OIsFFtjRxYDQoSP8NI)g09_;Qlzsy
+z3O>^Zmcltu96wMRudvHXLxn;xh~EqEM^Gr}m&=vHbwRKjl{%)fM2d8tOI4MM{l!dK
+z4$)%2P!LDJaqX2t;s4$Wy@Q1gZ=x97<n3qFBc<Bm#;F26e|~<6=hD9lOk>K<zaU`L
+zqML8CN*#9@aDs=m4ulGOO%*?>lhsvF9`g6&TYocZ_JQN=A1hUE#+kAD@E9jJd7%}~
+zMLIYMDVoel8h1}$+_YJF%DJ&-O)X~`ZoroouO-yDsj)OrPU{{+ph4LJKdD;Bi3a3T
+zbe?Tf8&<r^`I<R>elW+H+t;5$y~|nhq{o@?k1^-Hg%jhcu{xJyzvgk`0m*Te#GQe$
+z2IjOP{U&oF$`&WsuJN2!=fTnT^W)PwhnW-Ya3)3%H!`OUfy6?#V9r%+wCY}TU0!Cl
+z*kjeex}MZl_aWVoxhXfp&Ur~>>k;onlO4II%~KY!FT|r)!;agdwcf~rXIAVwc6CEj
+zJpE{CBzZ;L-gdYp9)G<w5{aU1kLvl`XxrnL=MQj88F%j+w*oR6c&t8(di=t_dW<Us
+z?>C8f@wZ%=YBfkLb0_gZP%us?_tgG3TXJ7BDbWb~V23Mt{QT(?mOc#ihbo#YtY#rD
+z7PLiJBSP#J^tiB|7vdE`p9|}IA$}9o7_wSJ;))RELe^~|u{T6dhpd-F;;j&U6|#N}
+z3BN(h4C``3tTE^&!`fqrdks2dSZ^5Oh(X^Omdc+rCapBB)uz~J(k-TSw<-3U^rC6K
+zYl;s|`q{KX)nazFdEs%*@f}l~SsY?~kb2(WgGl=fm!43<O#L+%@MH9Gl`~Gq=7;rx
+zMc&31@YxsRfz-6`>>4I&2(k1$iaK?FYVZ}~h~1{1T|;>=%b4`yk3XF>siEVHyC@HS
+z8OvVW%DeB`K&~H7>f?&^gQU_A0oM<l8+N5oZ4)iV>;p0b*k61j!x*S5X(-unS`9rZ
+zG}=vb+R*x})DSq-Q7;uJwKLPuG`Ej6G}#nch4dSqhHo0B2Gq%HbgCyS+pwZ3{?fph
+z!Jo*Dxcw7v7a#rIU2IRmVn4KE$x~88+a7J4zd|_!%xo9z$+P;Q6qA*AQ5FvzlPW^f
+zY&aJUhO1#_o~&$x>1qJKGpC+K<(u_&1197<WZ2zu79e*q&i9c$DPNGYYw%s_L~d?x
+zj;EW8N#6BCjjMs5>VVWxipk10ERAEpLG3^|JWI~<Y~c5vi!sB;W|~-R<=`-_TSLhN
+zYlyAlPUkfn-CnHq)Xv2vv1R->DYG*_Qk)fwt)g^KZ*f*K5tEj9C7Ea`HGyPe8U4wd
+nX2Iz@%Q6UTm;}-X%j^D0i1fiT)I6)4TdrsMY}`L(<y7krryzQ}
+
+literal 0
+HcmV?d00001
+
+diff --git a/src/mainboard/dell/snb_ivb_latitude/variants/e6220/early_init.c b/src/mainboard/dell/snb_ivb_latitude/variants/e6220/early_init.c
+new file mode 100644
+index 0000000000..ff83db095b
+--- /dev/null
++++ b/src/mainboard/dell/snb_ivb_latitude/variants/e6220/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/e6220/gpio.c b/src/mainboard/dell/snb_ivb_latitude/variants/e6220/gpio.c
+new file mode 100644
+index 0000000000..2306e4cf0a
+--- /dev/null
++++ b/src/mainboard/dell/snb_ivb_latitude/variants/e6220/gpio.c
+@@ -0,0 +1,192 @@
++/* 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_GPIO,
++	.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_NATIVE,
++};
++
++static const struct pch_gpio_set1 pch_gpio_set1_direction = {
++	.gpio0 = GPIO_DIR_INPUT,
++	.gpio1 = 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,
++};
++
++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,
++	.gpio1 = 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/e6220/hda_verb.c b/src/mainboard/dell/snb_ivb_latitude/variants/e6220/hda_verb.c
+new file mode 100644
+index 0000000000..0c69f0bd0e
+--- /dev/null
++++ b/src/mainboard/dell/snb_ivb_latitude/variants/e6220/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 */
++	0x102804a9,	/* Subsystem ID */
++	11,		/* Number of 4 dword sets */
++	AZALIA_SUBVENDOR(0, 0x102804a9),
++	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/e6220/overridetree.cb b/src/mainboard/dell/snb_ivb_latitude/variants/e6220/overridetree.cb
+new file mode 100644
+index 0000000000..9faf27e27b
+--- /dev/null
++++ b/src/mainboard/dell/snb_ivb_latitude/variants/e6220/overridetree.cb
+@@ -0,0 +1,37 @@
++## SPDX-License-Identifier: GPL-2.0-or-later
++
++chip northbridge/intel/sandybridge
++	device domain 0 on
++		subsystemid 0x1028 0x04a9 inherit
++
++		device ref igd on
++			register "gpu_cpu_backlight" = "0x0000046a"
++			register "gpu_pch_backlight" = "0x13121312"
++		end
++
++		chip southbridge/intel/bd82x6x
++			register "pcie_hotplug_map" = "{ 0, 0, 1, 0, 0, 0, 0, 0 }"
++			register "usb_port_config" = "{
++				{ 1, 1, 0 },
++				{ 1, 0, 0 },
++				{ 1, 1, 1 },
++				{ 1, 0, 1 },
++				{ 1, 1, 2 },
++				{ 1, 1, 2 },
++				{ 1, 1, 3 },
++				{ 1, 1, 3 },
++				{ 1, 0, 5 },
++				{ 1, 0, 5 },
++				{ 1, 1, 7 },
++				{ 1, 1, 6 },
++				{ 1, 0, 6 },
++				{ 1, 0, 7 },
++			}"
++
++			device ref pcie_rp4 off end
++			device ref sata1 on
++				register "sata_port_map" = "0x3b"
++			end
++		end
++	end
++end
+-- 
+2.39.5
+