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>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/82131
Reviewed-by: Felix Singer <service+coreboot-gerrit@felixsinger.de>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

7 files changed, 287 insertions, 0 deletions

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 0000000000..548075a745
--- /dev/null
+++ b/src/mainboard/dell/snb_ivb_latitude/variants/e6220/data.vbt
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