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, 442 insertions, 0 deletions

diff --git a/config/coreboot/default/patches/0013-mb-dell-Add-Latitude-E5420-Sandy-Bridge.patch b/config/coreboot/default/patches/0013-mb-dell-Add-Latitude-E5420-Sandy-Bridge.patch
new file mode 100644
index 00000000..5944535f
--- /dev/null
+++ b/config/coreboot/default/patches/0013-mb-dell-Add-Latitude-E5420-Sandy-Bridge.patch
@@ -0,0 +1,442 @@
+From bbcd6a7f09ee99f3b26b0931f1dcd70970242ee8 Mon Sep 17 00:00:00 2001
+From: Nicholas Chin <nic.c3.14@gmail.com>
+Date: Mon, 4 Mar 2024 18:05:43 -0700
+Subject: [PATCH 13/51] mb/dell: Add Latitude E5420 (Sandy Bridge)
+
+Mainboard is Krug 14". 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
+A02 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: I0283653156083768e1fd451bcf539b4e028589f4
+Signed-off-by: Nicholas Chin <nic.c3.14@gmail.com>
+---
+ src/mainboard/dell/snb_ivb_latitude/Kconfig   |  10 +-
+ .../dell/snb_ivb_latitude/Kconfig.name        |   3 +
+ .../snb_ivb_latitude/variants/e5420/data.vbt  | Bin 0 -> 6144 bytes
+ .../variants/e5420/early_init.c               |  14 ++
+ .../snb_ivb_latitude/variants/e5420/gpio.c    | 195 ++++++++++++++++++
+ .../variants/e5420/hda_verb.c                 |  32 +++
+ .../variants/e5420/overridetree.cb            |  39 ++++
+ 7 files changed, 292 insertions(+), 1 deletion(-)
+ create mode 100644 src/mainboard/dell/snb_ivb_latitude/variants/e5420/data.vbt
+ create mode 100644 src/mainboard/dell/snb_ivb_latitude/variants/e5420/early_init.c
+ create mode 100644 src/mainboard/dell/snb_ivb_latitude/variants/e5420/gpio.c
+ create mode 100644 src/mainboard/dell/snb_ivb_latitude/variants/e5420/hda_verb.c
+ create mode 100644 src/mainboard/dell/snb_ivb_latitude/variants/e5420/overridetree.cb
+
+diff --git a/src/mainboard/dell/snb_ivb_latitude/Kconfig b/src/mainboard/dell/snb_ivb_latitude/Kconfig
+index 4e94a7ef80..e6a21ffb99 100644
+--- a/src/mainboard/dell/snb_ivb_latitude/Kconfig
++++ b/src/mainboard/dell/snb_ivb_latitude/Kconfig
+@@ -17,6 +17,11 @@ config BOARD_DELL_SNB_IVB_LATITUDE_COMMON
+ 	select SYSTEM_TYPE_LAPTOP
+ 	select USE_NATIVE_RAMINIT
+ 
++config BOARD_DELL_LATITUDE_E5420
++	select BOARD_DELL_SNB_IVB_LATITUDE_COMMON
++	select BOARD_ROMSIZE_KB_6144
++	select SOUTHBRIDGE_INTEL_BD82X6X
++
+ config BOARD_DELL_LATITUDE_E5520
+ 	select BOARD_DELL_SNB_IVB_LATITUDE_COMMON
+ 	select BOARD_ROMSIZE_KB_6144
+@@ -60,6 +65,7 @@ config MAINBOARD_DIR
+ 	default "dell/snb_ivb_latitude"
+ 
+ config MAINBOARD_PART_NUMBER
++	default "Latitude E5420" if BOARD_DELL_LATITUDE_E5420
+ 	default "Latitude E5520" if BOARD_DELL_LATITUDE_E5520
+ 	default "Latitude E6420" if BOARD_DELL_LATITUDE_E6420
+ 	default "Latitude E6520" if BOARD_DELL_LATITUDE_E6520
+@@ -74,6 +80,7 @@ config USBDEBUG_HCD_INDEX
+ 	default 2
+ 
+ config VARIANT_DIR
++	default "e5420" if BOARD_DELL_LATITUDE_E5420
+ 	default "e5520" if BOARD_DELL_LATITUDE_E5520
+ 	default "e6420" if BOARD_DELL_LATITUDE_E6420
+ 	default "e6520" if BOARD_DELL_LATITUDE_E6520
+@@ -82,7 +89,8 @@ config VARIANT_DIR
+ 	default "e6530" if BOARD_DELL_LATITUDE_E6530
+ 
+ config VGA_BIOS_ID
+-	default "8086,0116" if BOARD_DELL_LATITUDE_E6520
++	default "8086,0116" if BOARD_DELL_LATITUDE_E6520 \
++		|| BOARD_DELL_LATITUDE_E5420
+ 	default "8086,0166" if BOARD_DELL_LATITUDE_E5530
+ 	default "8086,0126" if BOARD_DELL_LATITUDE_E6420 \
+ 		|| BOARD_DELL_LATITUDE_E5520
+diff --git a/src/mainboard/dell/snb_ivb_latitude/Kconfig.name b/src/mainboard/dell/snb_ivb_latitude/Kconfig.name
+index 7976691f21..a3fa2b1837 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_E5420
++	bool "Latitude E5420"
++
+ config BOARD_DELL_LATITUDE_E5520
+ 	bool "Latitude E5520"
+ 
+diff --git a/src/mainboard/dell/snb_ivb_latitude/variants/e5420/data.vbt b/src/mainboard/dell/snb_ivb_latitude/variants/e5420/data.vbt
+new file mode 100644
+index 0000000000000000000000000000000000000000..98b82fe6110fd295b5749041ec7f8c084ace5f57
+GIT binary patch
+literal 6144
+zcmeHKeQZ-z6hE);wSBvNZ!2$ObQ^;MgV6zl*Rhp}BXnCCMZU^_r7jRwT!kfLo8?3H
+zk9)u(7?cb(hChhTM57@QFfmbMB!G!dNsO6BW5OSp5EGF^jHnTTdhUBI+h`e+1ft1q
+z^SfW?+;h)4_uO+|XEfEV$91)<gOArWE)OnSTD}Ug6?8a~vz+SmQn!4~y3N7b^|hPp
+zR<5aEfv-b8M00Lk251!oO|8(YA6XaeXzkt-Z)@Ee!_{@z#Fro^?DqN4SGjRIu8KYp
+zZEufuU@5MM@7jv%h;75FS}ezKv?JDzCH}d%tE)A-GuDb*+B%}~w%88r>}c;!*XQ5O
+z)OU7u$J@4U+lk)#GSW%c%c)v`%R6?`w)LIyu6bD7-j0o&X9qUMcEsYlW3BU4rZRvt
+zqAUpjf*qXuLCCsU0YM2I5@gB1WKd)f1+Yt?%HWd0DZxYumP(K<LxTif8A39+!KMl}
+z31FHG)7?qk5g>e?=ER{f^&}W<0k@mxff(?6+Stw+s6y%k1mM$cLk#^FWWI*9bE1GY
+z&VY9?WC1u#23^3^UYw5?H0x2S2gN`x18Fko6_x(#MKyuCU_<D!mEp$qO_An}#@>DV
+zdkf*li41yW3p$*0Oo3+63kO6S91*KwP#l2i4jnc)JkUirL^$k}VbH0;CBh#BS=OLf
+zW-yE3BRon75gG{_2~QIC5cUzCC%i)FCmbidM>tIwAPf>N5Pl?FC0r*+Sq!oXj!keQ
+zVKcyK>TL+gc7oLco$28+FpeeXkEP}_Sea=mk#IWUR^m$!BogvszLPu83FJm0k6K<l
+z$#$~YiXtY*GpHp#@FvHJ1UnBD*H%d+{_j24XE4nmBa*?5mOWiold28s3}>*}<HaeO
+z+1|-8g2)FCfkDZIdb-Ub);z0#;XEbPfGe?A72!{DAUg|$m+Z~(i@h9j4gtm611ni(
+z#u>ACcP}M4exU`*MKVwl5+t6JBpTkmm}xWflKUe~7}`!#%z#gAo{NxUrpDAndYktu
+zI0}VLU`J7^xmF1AFiz5S^uzp*DPI$%$qq!(ikh0kP+(GKzF|@N?Y%_#Vp@M+xHr$F
+z=%+18z`-fT%z)9-TS$~Dh@2yeN7!UIt0h`fWxUu`JvA_ra*8P48l%7KR0&c1;0R75
+z4f0oz(xQ3MWqz5>qW5M4tZWExHs8<H(e1G@4km@5wEzOOP^x<l`YmA|eKs6j3wl8B
+z%C%;uygh%<#kGZ{fymL+OlV0!-*T!V5IB>X@p!@CBU=7e{5^Jl{s7by`po-AJqM2l
+znk(=^0bHkF0rUw7)^7j;$=_UIs8`6P6b-;vPDZ#U9L)W1_PAYRDP9k~;5$stt5ZiV
+zD0>;i-?OlYY2}P9WVnfGos4xee2r=EGWHR}ADH$VV>cO=xU?!4TjIi)OMBYI_PX#b
+zm-eBHed5BOT-x6*W>;{IqAga~G6lCQT93k>Q}CpsomJR*1%FjEkv?fuT%c-8RklXO
+zU8;6KWk*zeU)4TW+1D!mrE0EhHZfbBeN{4S7X@Pig%};A99QTdA~wZruL*8y?K!jP
+zG5R*k=);S}Zn<T;W!Mxt`(!+z7_r@3LVpf|FESauM&4}+wqzXfba-zG>A}on(uzNF
+zyu>BcjA})C@bg%<;+Eh2;Sz4heFFCbZ@C{FrXMIbYzu>?Bi-|vZ}JSFU%JA>7$7et
+z0Yo%CnOVZm#ZA}4kWZOn15};h5*#OM3b+6vHzgruMP>=5MNJK1y42{YgveP-!j%#(
+z0rGe@8t%!=66Ti%K4|Gx=o7gFp83wQ;+s3H7+r^SKlpp3KKcr!3@|n;NCH_=qL=3T
+zq3WH?en`b+W-HR-fnrhw*9aZ%M}lHX7@H?E>!6wv_&YQFEHdA$%Z1R--yub>=c@p?
+z6@7Fc$&>sAxwiz{BE$1kb$K9Co=ozlA973y^i(^BM|EZ$$^y`0KyHiMJ%O*XbfEX1
+ziZaH>W(1pWL0bo|T!x__N$^$DpmxI=bL6WUK3JGyn?rw-qC4ZA$yGjIB}N(=ldD2O
+zAJ@bxp<qR-3lIv<!P~SE8r*#_Ckl?$0|1fZ>2>n}u*mUIYFd>}O_wuwBD^r9<#=!0
+X1LGbT_rSOZ#yv3ZfpHH!G!Og(1Xg~J
+
+literal 0
+HcmV?d00001
+
+diff --git a/src/mainboard/dell/snb_ivb_latitude/variants/e5420/early_init.c b/src/mainboard/dell/snb_ivb_latitude/variants/e5420/early_init.c
+new file mode 100644
+index 0000000000..ff83db095b
+--- /dev/null
++++ b/src/mainboard/dell/snb_ivb_latitude/variants/e5420/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/e5420/gpio.c b/src/mainboard/dell/snb_ivb_latitude/variants/e5420/gpio.c
+new file mode 100644
+index 0000000000..f76b93d9f0
+--- /dev/null
++++ b/src/mainboard/dell/snb_ivb_latitude/variants/e5420/gpio.c
+@@ -0,0 +1,195 @@
++/* 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_GPIO,
++	.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_GPIO,
++	.gpio13 = GPIO_MODE_GPIO,
++	.gpio14 = GPIO_MODE_GPIO,
++	.gpio15 = GPIO_MODE_GPIO,
++	.gpio16 = GPIO_MODE_NATIVE,
++	.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,
++	.gpio2 = GPIO_DIR_INPUT,
++	.gpio3 = GPIO_DIR_INPUT,
++	.gpio4 = GPIO_DIR_INPUT,
++	.gpio6 = GPIO_DIR_INPUT,
++	.gpio7 = GPIO_DIR_INPUT,
++	.gpio8 = GPIO_DIR_INPUT,
++	.gpio12 = GPIO_DIR_OUTPUT,
++	.gpio13 = GPIO_DIR_INPUT,
++	.gpio14 = GPIO_DIR_INPUT,
++	.gpio15 = 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 = {
++	.gpio12 = GPIO_LEVEL_HIGH,
++	.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_NATIVE,
++	.gpio46 = GPIO_MODE_GPIO,
++	.gpio47 = GPIO_MODE_NATIVE,
++	.gpio48 = GPIO_MODE_GPIO,
++	.gpio49 = GPIO_MODE_NATIVE,
++	.gpio50 = GPIO_MODE_GPIO,
++	.gpio51 = GPIO_MODE_GPIO,
++	.gpio52 = GPIO_MODE_GPIO,
++	.gpio53 = GPIO_MODE_GPIO,
++	.gpio54 = GPIO_MODE_GPIO,
++	.gpio55 = GPIO_MODE_GPIO,
++	.gpio56 = GPIO_MODE_GPIO,
++	.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_OUTPUT,
++	.gpio38 = GPIO_DIR_INPUT,
++	.gpio39 = GPIO_DIR_INPUT,
++	.gpio46 = GPIO_DIR_OUTPUT,
++	.gpio48 = GPIO_DIR_INPUT,
++	.gpio50 = GPIO_DIR_OUTPUT,
++	.gpio51 = GPIO_DIR_OUTPUT,
++	.gpio52 = GPIO_DIR_INPUT,
++	.gpio53 = GPIO_DIR_INPUT,
++	.gpio54 = GPIO_DIR_INPUT,
++	.gpio55 = GPIO_DIR_OUTPUT,
++	.gpio56 = GPIO_DIR_INPUT,
++	.gpio57 = GPIO_DIR_INPUT,
++	.gpio60 = GPIO_DIR_OUTPUT,
++};
++
++static const struct pch_gpio_set2 pch_gpio_set2_level = {
++	.gpio34 = GPIO_LEVEL_LOW,
++	.gpio37 = GPIO_LEVEL_LOW,
++	.gpio46 = GPIO_LEVEL_HIGH,
++	.gpio50 = GPIO_LEVEL_HIGH,
++	.gpio51 = GPIO_LEVEL_LOW,
++	.gpio55 = 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_NATIVE,
++	.gpio69 = GPIO_MODE_NATIVE,
++	.gpio70 = GPIO_MODE_NATIVE,
++	.gpio71 = GPIO_MODE_NATIVE,
++	.gpio72 = GPIO_MODE_NATIVE,
++	.gpio73 = GPIO_MODE_NATIVE,
++	.gpio74 = GPIO_MODE_GPIO,
++	.gpio75 = GPIO_MODE_NATIVE,
++};
++
++static const struct pch_gpio_set3 pch_gpio_set3_direction = {
++	.gpio74 = 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/e5420/hda_verb.c b/src/mainboard/dell/snb_ivb_latitude/variants/e5420/hda_verb.c
+new file mode 100644
+index 0000000000..0bc6c35a63
+--- /dev/null
++++ b/src/mainboard/dell/snb_ivb_latitude/variants/e5420/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 */
++	0x1028049b,	/* Subsystem ID */
++	11,		/* Number of 4 dword sets */
++	AZALIA_SUBVENDOR(0, 0x1028049b),
++	AZALIA_PIN_CFG(0, 0x0a, 0x04a11020),
++	AZALIA_PIN_CFG(0, 0x0b, 0x0421101f),
++	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, 0x400000f0),
++	AZALIA_PIN_CFG(0, 0x1f, 0x400000f0),
++	AZALIA_PIN_CFG(0, 0x20, 0xd5a30130),
++
++	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/e5420/overridetree.cb b/src/mainboard/dell/snb_ivb_latitude/variants/e5420/overridetree.cb
+new file mode 100644
+index 0000000000..3f55bfd49d
+--- /dev/null
++++ b/src/mainboard/dell/snb_ivb_latitude/variants/e5420/overridetree.cb
+@@ -0,0 +1,39 @@
++## SPDX-License-Identifier: GPL-2.0-or-later
++
++chip northbridge/intel/sandybridge
++	device domain 0 on
++		subsystemid 0x1028 0x049b inherit
++
++		device ref igd on
++			register "gpu_cpu_backlight" = "0x00000c31"
++			register "gpu_pch_backlight" = "0x13121312"
++		end
++
++		chip southbridge/intel/bd82x6x
++			register "pcie_hotplug_map" = "{ 0, 0, 1, 0, 0, 0, 1, 0 }"
++			register "usb_port_config" = "{
++				{ 1, 1, 0 },
++				{ 1, 1, 0 },
++				{ 1, 1, 1 },
++				{ 1, 1, 1 },
++				{ 1, 1, 2 },
++				{ 1, 1, 2 },
++				{ 1, 1, 3 },
++				{ 1, 1, 3 },
++				{ 1, 1, 5 },
++				{ 1, 1, 5 },
++				{ 1, 1, 7 },
++				{ 1, 1, 6 },
++				{ 1, 1, 6 },
++				{ 1, 1, 7 },
++			}"
++
++			device ref gbe off end
++			device ref pcie_rp4 off end
++			device ref pcie_rp7 on end # Broadcom BCM5761 Gigabit Ethernet
++			device ref sata1 on
++				register "sata_port_map" = "0x3b"
++			end
++		end
++	end
++end
+-- 
+2.39.5
+