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, 430 insertions, 0 deletions

diff --git a/config/coreboot/default/patches/0008-mb-dell-Add-Latitude-E6530-Ivy-Bridge.patch b/config/coreboot/default/patches/0008-mb-dell-Add-Latitude-E6530-Ivy-Bridge.patch
new file mode 100644
index 00000000..48b9d21e
--- /dev/null
+++ b/config/coreboot/default/patches/0008-mb-dell-Add-Latitude-E6530-Ivy-Bridge.patch
@@ -0,0 +1,430 @@
+From 40545928c415c27d3a30748e4bfdee7f9d8f82f9 Mon Sep 17 00:00:00 2001
+From: Nicholas Chin <nic.c3.14@gmail.com>
+Date: Sat, 19 Aug 2023 16:19:10 -0600
+Subject: [PATCH 08/51] mb/dell: Add Latitude E6530 (Ivy Bridge)
+
+Mainboard is QALA0/LA-7761P (UMA). The version with a 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 vbios obtained using intel_bios_dumper while running
+version A22 of the vendor firmware, which I then processed using
+`intelvbttool --inoprom vbios.bin --outvbt data.vbt` to obtain data.vbt.
+
+This was originally tested and found to be working as a standalone board
+port in Libreboot, though 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: I9fcd73416018574f8934962f92c8222d0101cb71
+Signed-off-by: Nicholas Chin <nic.c3.14@gmail.com>
+---
+ src/mainboard/dell/snb_ivb_latitude/Kconfig   |   8 +
+ .../dell/snb_ivb_latitude/Kconfig.name        |   3 +
+ .../snb_ivb_latitude/variants/e6530/data.vbt  | Bin 0 -> 4280 bytes
+ .../variants/e6530/early_init.c               |  14 ++
+ .../snb_ivb_latitude/variants/e6530/gpio.c    | 192 ++++++++++++++++++
+ .../variants/e6530/hda_verb.c                 |  32 +++
+ .../variants/e6530/overridetree.cb            |  37 ++++
+ 7 files changed, 286 insertions(+)
+ create mode 100644 src/mainboard/dell/snb_ivb_latitude/variants/e6530/data.vbt
+ create mode 100644 src/mainboard/dell/snb_ivb_latitude/variants/e6530/early_init.c
+ create mode 100644 src/mainboard/dell/snb_ivb_latitude/variants/e6530/gpio.c
+ create mode 100644 src/mainboard/dell/snb_ivb_latitude/variants/e6530/hda_verb.c
+ create mode 100644 src/mainboard/dell/snb_ivb_latitude/variants/e6530/overridetree.cb
+
+diff --git a/src/mainboard/dell/snb_ivb_latitude/Kconfig b/src/mainboard/dell/snb_ivb_latitude/Kconfig
+index be9ac37845..03377275f0 100644
+--- a/src/mainboard/dell/snb_ivb_latitude/Kconfig
++++ b/src/mainboard/dell/snb_ivb_latitude/Kconfig
+@@ -23,6 +23,12 @@ config BOARD_DELL_LATITUDE_E6430
+ 	select MAINBOARD_USES_IFD_GBE_REGION
+ 	select SOUTHBRIDGE_INTEL_C216
+ 
++config BOARD_DELL_LATITUDE_E6530
++	select BOARD_DELL_SNB_IVB_LATITUDE_COMMON
++	select BOARD_ROMSIZE_KB_12288
++	select MAINBOARD_USES_IFD_GBE_REGION
++	select SOUTHBRIDGE_INTEL_C216
++
+ if BOARD_DELL_SNB_IVB_LATITUDE_COMMON
+ 
+ config DRAM_RESET_GATE_GPIO
+@@ -33,6 +39,7 @@ config MAINBOARD_DIR
+ 
+ config MAINBOARD_PART_NUMBER
+ 	default "Latitude E6430" if BOARD_DELL_LATITUDE_E6430
++	default "Latitude E6530" if BOARD_DELL_LATITUDE_E6530
+ 
+ config OVERRIDE_DEVICETREE
+ 	default "variants/\$(CONFIG_VARIANT_DIR)/overridetree.cb"
+@@ -42,6 +49,7 @@ config USBDEBUG_HCD_INDEX
+ 
+ config VARIANT_DIR
+ 	default "e6430" if BOARD_DELL_LATITUDE_E6430
++	default "e6530" if BOARD_DELL_LATITUDE_E6530
+ 
+ config VGA_BIOS_ID
+ 	default "8086,0166"
+diff --git a/src/mainboard/dell/snb_ivb_latitude/Kconfig.name b/src/mainboard/dell/snb_ivb_latitude/Kconfig.name
+index 183252630a..d89185d670 100644
+--- a/src/mainboard/dell/snb_ivb_latitude/Kconfig.name
++++ b/src/mainboard/dell/snb_ivb_latitude/Kconfig.name
+@@ -2,3 +2,6 @@
+ 
+ config BOARD_DELL_LATITUDE_E6430
+ 	bool "Latitude E6430"
++
++config BOARD_DELL_LATITUDE_E6530
++	bool "Latitude E6530"
+diff --git a/src/mainboard/dell/snb_ivb_latitude/variants/e6530/data.vbt b/src/mainboard/dell/snb_ivb_latitude/variants/e6530/data.vbt
+new file mode 100644
+index 0000000000000000000000000000000000000000..af64a913d521fe240ce30e114e90fe75d3841bbc
+GIT binary patch
+literal 4280
+zcmdT{U2GiH75-*te`aTAcGqJQY$rA+e`ZbWcy_TDH@NC}cbl$*NjAn^RtPm->J7GV
+zY_m3jN`RN*h9FvG3Do9+qP$c^s1;PLB3@br9>Ag%La5?TLP`-2DDaR65U2_)=g!QU
+zIJ+cPr4+cc-@WIad+wQY&YW{+c1J!nPPgn&^^N3Hy*D37jg0=7CSl@*=mXr>x75gi
+zTMlK0$A=H4Mh~QKqCa92jz_;d3rtFqp(o-4gCnzxrJ2}Rw@^!haWp<ahv&+aDb5_3
+zE0-vq=pkms7Ves!pD#^PA#PF^_wjBTO=oC(ayR{asyKURiBdh3?x76Ll#Z5WXklvl
+z@M5XFK#OxUXqrdzedca+l4WK~_tG8Hv&HgsX`$Za3pnYy`CpW$@0?nsSh|}MrfK#j
+z%y^t^lPNt{p5INwGcz<MWEN<wv`{J^Eluv$Rb2&6%ZgV5Bp(6~Lz2Eoz~@C!!B)bs
+z1x-OrK~}*8L07Po(5+xZL6I<}phTEf5QRsVJYHa{f^AXPFaoSsnJ0feXUdB=CJ>Fv
+zr&_=Q6YubieL}zoiJ0a+c+(bGwFN5g1pz;^rGP1sM+lHB@UAPM2&F=RB&yv@$caXF
+ze~Io&3CQe=cMHr!e{yiokd?~p&F&k`jg99Ex7}WO=$8*Kx8wXv4eSa_CJqKVkyRr&
+zCdcqs*@M5!gD84e@fW{|5B#mDGTH;JFw`h^stQcTjf@V3pNe8&f$=NG?-+klRGea*
+zX1vOHi}4@EM~qJyfuM>e#%9J&Mjzt`j5OnB#;uGZ<1WTMj3vgSj3*esXZY{I`KqUa
+zfbB~~a>piTMAVDNyHR<{<v-=}gXhE(15|emxueb8Kv%5>0{F7}8pool{7_h6u?7yg
+zlyNm>-Eq_&WjW{0$9ZHq6x?~W8l2#1g0CyrtN#R-nbWG(?>iNG1zRiZgj;Lm_%rVe
+zwZ6i{g#sR5xudpbj~5H9TNIQ3gMikIG@l(Z4IR@^2|Vu|LZteLF5@$KH5`Pr&3_vn
+z^!Fn27&z6hSPR+*;D*&lm-)OE=ZgjK*(X&XdBq7RDUd7>|Lou?UMNg6lVCB;TPz{Z
+zN4-~p*Rr=uq8OYdlAy38{}dt5%2}aUax{}zWzDRgmsn2|!)=Bp)U35;Ld3H+Ye=*_
+z4S&0{5*TVI!OU-SWz$XUwrrnb%9?NHau^uhn>&;%&X#8O7mt)SIJr8D$u?NS=rUW6
+zCmnxV&FgUDAWX}gZ+1AH&-C4Q=3sl5RX9=OWPfCtcRZi4tkX44YYfRH*@?H7T=Kz=
+zG*i-wU2jbJMK%ChTMTXZFJEm~k;KCj*D60g=j!2ns8Q`g%jSRK^?=IwL^|I5-K2zH
+z8*A0-mL%Q`R#xatM^u^E=IrX+2&bc;3rv!NipS^G*6zlIRAV(JJDU($OBHuptd&1(
+zoNu>t*Q}|siS8#MYavR6j7&(~AEL#OaV(^+gy>YrSPiLfgy{2-p=xT2Mtd}4R8#XB
+z-LDysYw8J&{-GJKYwEiif07x7u5QsOr5oeA`ZJxDb>p|XdQzvCb>nSaeP1UfY_x~f
+z9bwuRHf|5Ahr{&iu<>+QeI`t=g^e>|^=z1;5o23K?TP5uo%2>aXQWCKr#dH;Qr0*j
+z3LecKKarw5`Xblzd$&H4oP%y&l3egyUc<=<Azs)*u}X^*n$F~s2O<-paSF?q*HB+n
+zqBfj5;J|x@hM`M(QD20jrkwi8`y3l;8qO;#l8A#CMI8Kg9E{ERsT>TGXaGC^5Cz)J
+z4?eb?Kub*nWYdmhV-4?j<o}k#pt-{wK;b3U(B^+`s7-`HYOZOxv<+RG^LulAxKL|9
+z3NH#9{Lg*7U1&gy<zHSG$;LMHby+V=ENlGFVLKjt%kkph7kP1M8|vebT=K5)*E>JW
+zjd{Tu*o*CE*QO)}{_J>haU5zn+1QJ^eBg|d5n5-%|DwS@1+<Mtvat=iZ3BF??pZXh
+zth4PnnWL*s%}k43fbe34>yaZ_2@Kj<UGt)`2G5>K>)nIBR-xB@+1PQ2*c$lV?Z13o
+zbX%CHpm`!1Z4$d28~9k{rfu-0w@xg6{q!u2{)Dm_))4RK$?#7P*t7V+g_9d<V!MD`
+zaj`t-?uy6zsjzp<-IdM6g(XhQX2iF<+p?Kmw6?a+f^VMex*PuetNfqf+4_FpD%8TW
+eZvUbDHC^NLu5~gtzg|!EqSkX2ep9pg!tpEeo1jDh
+
+literal 0
+HcmV?d00001
+
+diff --git a/src/mainboard/dell/snb_ivb_latitude/variants/e6530/early_init.c b/src/mainboard/dell/snb_ivb_latitude/variants/e6530/early_init.c
+new file mode 100644
+index 0000000000..ff83db095b
+--- /dev/null
++++ b/src/mainboard/dell/snb_ivb_latitude/variants/e6530/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/e6530/gpio.c b/src/mainboard/dell/snb_ivb_latitude/variants/e6530/gpio.c
+new file mode 100644
+index 0000000000..777570765a
+--- /dev/null
++++ b/src/mainboard/dell/snb_ivb_latitude/variants/e6530/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_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_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_NATIVE,
++	.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,
++	.gpio3 = 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_OUTPUT,
++	.gpio29 = GPIO_DIR_INPUT,
++};
++
++static const struct pch_gpio_set1 pch_gpio_set1_level = {
++	.gpio28 = GPIO_LEVEL_LOW,
++};
++
++static const struct pch_gpio_set1 pch_gpio_set1_reset = {
++	.gpio30 = GPIO_RESET_RSMRST,
++};
++
++static const struct pch_gpio_set1 pch_gpio_set1_invert = {
++	.gpio0 = GPIO_INVERT,
++	.gpio8 = GPIO_INVERT,
++	.gpio13 = 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_INPUT,
++	.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,
++	.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/e6530/hda_verb.c b/src/mainboard/dell/snb_ivb_latitude/variants/e6530/hda_verb.c
+new file mode 100644
+index 0000000000..3ebccff81d
+--- /dev/null
++++ b/src/mainboard/dell/snb_ivb_latitude/variants/e6530/hda_verb.c
+@@ -0,0 +1,32 @@
++/* SPDX-License-Identifier: GPL-2.0-only */
++
++#include <device/azalia_device.h>
++
++const u32 cim_verb_data[] = {
++	0x111d76df,	/* Codec Vendor / Device ID: IDT */
++	0x10280535,	/* Subsystem ID */
++	11,		/* Number of 4 dword sets */
++	AZALIA_SUBVENDOR(0, 0x10280535),
++	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),
++
++	0x80862806,	/* 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/e6530/overridetree.cb b/src/mainboard/dell/snb_ivb_latitude/variants/e6530/overridetree.cb
+new file mode 100644
+index 0000000000..8b9c82fba4
+--- /dev/null
++++ b/src/mainboard/dell/snb_ivb_latitude/variants/e6530/overridetree.cb
+@@ -0,0 +1,37 @@
++## SPDX-License-Identifier: GPL-2.0-or-later
++
++chip northbridge/intel/sandybridge
++	device domain 0 on
++		subsystemid 0x1028 0x0535 inherit
++
++		device ref igd on
++			register "gpu_cpu_backlight" = "0x00000251"
++			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, 1, 2 },
++				{ 1, 1, 2 },
++				{ 1, 0, 3 },
++				{ 1, 1, 3 },
++				{ 1, 1, 4 },
++				{ 1, 1, 4 },
++				{ 1, 1, 5 },
++				{ 1, 1, 5 },
++				{ 1, 2, 6 },
++				{ 1, 2, 6 },
++			}"
++
++			device ref xhci on
++				register "superspeed_capable_ports" = "0x0000000f"
++				register "xhci_overcurrent_mapping" = "0x00000c03"
++				register "xhci_switchable_ports" = "0x0000000f"
++			end
++		end
++	end
++end
+-- 
+2.39.5
+