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/0012-mb-dell-Add-Latitude-E5520-Sandy-Bridge.patch b/config/coreboot/default/patches/0012-mb-dell-Add-Latitude-E5520-Sandy-Bridge.patch
new file mode 100644
index 00000000..4fd3bba2
--- /dev/null
+++ b/config/coreboot/default/patches/0012-mb-dell-Add-Latitude-E5520-Sandy-Bridge.patch
@@ -0,0 +1,442 @@
+From 3f8eade6150f582129332f6347e9a685f8a7b500 Mon Sep 17 00:00:00 2001
+From: Nicholas Chin <nic.c3.14@gmail.com>
+Date: Wed, 7 Feb 2024 10:23:38 -0700
+Subject: [PATCH 12/51] mb/dell: Add Latitude E5520 (Sandy Bridge)
+
+Mainboard is Krug 15". 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
+A14 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: Ic9bfc028d4b8ae01ccc019157bb53e7764671134
+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/e5520/data.vbt  | Bin 0 -> 6144 bytes
+ .../variants/e5520/early_init.c               |  14 ++
+ .../snb_ivb_latitude/variants/e5520/gpio.c    | 195 ++++++++++++++++++
+ .../variants/e5520/hda_verb.c                 |  32 +++
+ .../variants/e5520/overridetree.cb            |  39 ++++
+ 7 files changed, 292 insertions(+), 1 deletion(-)
+ create mode 100644 src/mainboard/dell/snb_ivb_latitude/variants/e5520/data.vbt
+ create mode 100644 src/mainboard/dell/snb_ivb_latitude/variants/e5520/early_init.c
+ create mode 100644 src/mainboard/dell/snb_ivb_latitude/variants/e5520/gpio.c
+ create mode 100644 src/mainboard/dell/snb_ivb_latitude/variants/e5520/hda_verb.c
+ create mode 100644 src/mainboard/dell/snb_ivb_latitude/variants/e5520/overridetree.cb
+
+diff --git a/src/mainboard/dell/snb_ivb_latitude/Kconfig b/src/mainboard/dell/snb_ivb_latitude/Kconfig
+index 72bdc96c0a..4e94a7ef80 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_E5520
++	select BOARD_DELL_SNB_IVB_LATITUDE_COMMON
++	select BOARD_ROMSIZE_KB_6144
++	select SOUTHBRIDGE_INTEL_BD82X6X
++
+ config BOARD_DELL_LATITUDE_E6420
+ 	select BOARD_DELL_SNB_IVB_LATITUDE_COMMON
+ 	select BOARD_ROMSIZE_KB_10240
+@@ -55,6 +60,7 @@ config MAINBOARD_DIR
+ 	default "dell/snb_ivb_latitude"
+ 
+ config MAINBOARD_PART_NUMBER
++	default "Latitude E5520" if BOARD_DELL_LATITUDE_E5520
+ 	default "Latitude E6420" if BOARD_DELL_LATITUDE_E6420
+ 	default "Latitude E6520" if BOARD_DELL_LATITUDE_E6520
+ 	default "Latitude E5530" if BOARD_DELL_LATITUDE_E5530
+@@ -68,6 +74,7 @@ config USBDEBUG_HCD_INDEX
+ 	default 2
+ 
+ config VARIANT_DIR
++	default "e5520" if BOARD_DELL_LATITUDE_E5520
+ 	default "e6420" if BOARD_DELL_LATITUDE_E6420
+ 	default "e6520" if BOARD_DELL_LATITUDE_E6520
+ 	default "e5530" if BOARD_DELL_LATITUDE_E5530
+@@ -77,7 +84,8 @@ config VARIANT_DIR
+ config VGA_BIOS_ID
+ 	default "8086,0116" if BOARD_DELL_LATITUDE_E6520
+ 	default "8086,0166" if BOARD_DELL_LATITUDE_E5530
+-	default "8086,0126" if BOARD_DELL_LATITUDE_E6420
++	default "8086,0126" if BOARD_DELL_LATITUDE_E6420 \
++		|| BOARD_DELL_LATITUDE_E5520
+ 	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 c7665ac263..7976691f21 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_E5520
++	bool "Latitude E5520"
++
+ config BOARD_DELL_LATITUDE_E6420
+ 	bool "Latitude E6420"
+ 
+diff --git a/src/mainboard/dell/snb_ivb_latitude/variants/e5520/data.vbt b/src/mainboard/dell/snb_ivb_latitude/variants/e5520/data.vbt
+new file mode 100644
+index 0000000000000000000000000000000000000000..b511e75262e37fa123d674e9a7b21a8dfe427729
+GIT binary patch
+literal 6144
+zcmeHKZ){Ul6hE);wSBvNZ|mL$bmQOM2BTvXUI!}^N9ejTij1vnu+)Wx6<c9(Y_%K6
+zzOV-@f<ehpWB5RHBpMBgG7}RuMuM2=l*E{6G$wq&gqTQ3#E2RZsOP@dvW*rP7>Fjj
+z&F`Lj?>YC}bI(2Z+}C+6zKyiGrosQXuW7A+&1%<rN+Y1ck(}dLrx)Ma#^x>lnvFGE
+zeD#gB>*#Tq4&j^|7Xcz1r^pp*)g#T}u1Me3ct>Pgls5Qi3!6e2W0%`a-Ic|3efWuR
+zXJ@#}wJyGMTXTcY<%@TBKh@(3hP$Gjv}E}rx-%9D_eLXhYe!c&-VyDg-Cdo1>Biji
+zNNsnlFW#|jdoOj?mZ43m>cVO%UE9@*E7x|%V~c4`XD4l9GCi~@+7pfMibfX8L?!^I
+zc~Rg1I5SxH1DAEZ0{jA41jrJBh#-l;b6^%g7QrThRe)&%tQH_!ggOD7A_PRRgGuI0
+z0zi=n#rCB66d-sO$M~^6wgeb$2fH1|0R`v}xUiWCU`4SF;Dyh&j|mK&6WJWJ&Pq9I
+zVgmFQfh+)vE}(KWwHA|Oh3fSkss|;2E(2i}s1?gRRV%8!K7U={vHD=s#+Fd)W^M1j
+z{R4$??VSvEWpgT=vCM&1-U$bI6CB~IV3Z$$Vv7o!EDnev4j~R(MHsazZ~^fLLKGF4
+zEfQFOa3dZ?1Q1P#&4?!vyAk^k&m&$z3?WV+-b0*1j37o4=MX<3E+eiYge(Ht2umAW
+zOPDmU>UL{flI9u|@JtVvfp#o8ek?VfVV9YP5(%pnZX~{PKq4WoWGmV8t$=Ri@{zLQ
+zNYYt4<$0Ry&qIoG;7s-t333)Nu8opN{NG!)&!I@eO(cVx8vBVEBvotJ7%yNl$7iQ_
+zI=xk30+V$ff`F6<wRoF(TK%j9nsr#H23umU%)_7jNOl%*FPU567qbg;4gtp711nj2
+z#+kHw`v4|5cA+`UMIvAl;slnH1nl0v=xH<al>1}ljxDE1dcda^&!do|r^eJkI?aC-
+zEQMSfm?<w*Unzumkj_w5>VYL6W4=aCiy4rk%xq~5LV?bi|GL2$G7li<%c7yd;6T34
+zQBN5huZ3~6`ChGkpb$Bg5ITb#2iK-qs|1`=sl6Dhn(Lj&8Agt?S{sTDmmtRj7Jm_1
+zFnt{w&FdFkWS3bl>OeL?eO+*i{)9G!cSI-InGt|U0eEYmRCOHm7|I;#LO8ksRIeJ#
+zGe+jTwPg4C4TYuN(9zULV3k+hI$YuPo=%N8oZ#u_4S!3Xelt6N0BmuC`hCNeg+&97
+z6*!>)uHvr%2004GZv?!_-y&|TRmil=9D%Q`1aXBsnD^gov3*UZI34&1_vn(B=T4kZ
+z_A>ClXVIBNaS^hd&^DrU6VgZMYeadMkdFxcktn|ra-Gl;n^I{bt86rCQ=YMry*B!$
+zP5ID9KDE)GZOY#^VwPyRq^y+48j0?ZlzxdkC()CV@`*&wO7vGr;qjA3rb}gIwM-gi
+zx>HsT$mEDj-<OpyWb%zn|B@A3Hkp<!FT5;hrt_SZiy?*wDaIu{h>%Ir=@rh7)SR;b
+zAEWQGv_X1)wq0y5Ha0c~&psIsln<Hiu3;#Lf;%*eI<@?p8cfMJV(IYi8q$NA#iS8`
+z_~|4t4b^wtMSAeFST^F8-Tm<zu8D&j^8=&I4;I}Im>aeSK~X8*^Z9SE44_`P#KIUL
+zf6^N2f>5HCPWM3N+f0MyWOV^kz~!-wVc4MRXOY>4Jsxd1RyBKEMzNf{RKhesKFdbq
+zJ(*d<l2Y#n?E?~iBA39P?~Pr2d#}5=#Sfl-VGzGUF$4U2KcqCIVlwkC(&7PQk_X!a
+z8}3Jgq-&U*Co|h1>l)ZQGyW_x->i#;FvQ*=Nv&nG0N5@D@jjv_Q}K}6MP?1A6`JGe
+zDwj9pN+x;T4>`I9e5x(uqdK#OGB31ikk@Xv=dxLb4fx(;ktX@rOb~M~?dYQQYiPia
+z8r;jUQ?sd2@3||-cb2Eb%JFYfxHsONoaJ^eqoKN{<g9?-%`7oWz+aJS0tEc!^d@hD
+z1-I{%hr!Y?0uVZpUbl__37xn@jkD6Z>3SATgBQlEoN7&ZV9Eni9+>jLln16fFy(=V
+H=7E0zE^L4Z
+
+literal 0
+HcmV?d00001
+
+diff --git a/src/mainboard/dell/snb_ivb_latitude/variants/e5520/early_init.c b/src/mainboard/dell/snb_ivb_latitude/variants/e5520/early_init.c
+new file mode 100644
+index 0000000000..ff83db095b
+--- /dev/null
++++ b/src/mainboard/dell/snb_ivb_latitude/variants/e5520/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/e5520/gpio.c b/src/mainboard/dell/snb_ivb_latitude/variants/e5520/gpio.c
+new file mode 100644
+index 0000000000..f76b93d9f0
+--- /dev/null
++++ b/src/mainboard/dell/snb_ivb_latitude/variants/e5520/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/e5520/hda_verb.c b/src/mainboard/dell/snb_ivb_latitude/variants/e5520/hda_verb.c
+new file mode 100644
+index 0000000000..1373975352
+--- /dev/null
++++ b/src/mainboard/dell/snb_ivb_latitude/variants/e5520/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 */
++	0x1028049a,	/* Subsystem ID */
++	11,		/* Number of 4 dword sets */
++	AZALIA_SUBVENDOR(0, 0x1028049a),
++	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, 0xd5a301a0),
++	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/e5520/overridetree.cb b/src/mainboard/dell/snb_ivb_latitude/variants/e5520/overridetree.cb
+new file mode 100644
+index 0000000000..479d1b696e
+--- /dev/null
++++ b/src/mainboard/dell/snb_ivb_latitude/variants/e5520/overridetree.cb
+@@ -0,0 +1,39 @@
++## SPDX-License-Identifier: GPL-2.0-or-later
++
++chip northbridge/intel/sandybridge
++	device domain 0 on
++		subsystemid 0x1028 0x049a inherit
++
++		device ref igd on
++			register "gpu_cpu_backlight" = "0x00000218"
++			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
+