mb/google/octopus/var/meep: Update GPIO config for meep

The change updates GPIO configuration for meep.

1. Update touchscreen power enable GPIO in devicetree.
2. Provide default override tables for GPIO configuration.

BUG=b:112955087
TEST=Boot on meep proto board with Intel (Jefferson Peak) wifi card.

Change-Id: Idb4e7a510eef15c2e118058d5848080782f4f665
Signed-off-by: Wisley Chen <wisley.chen@quantatw.com>
Reviewed-on: https://review.coreboot.org/28252
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>

3 files changed, 80 insertions, 1 deletions

diff --git a/src/mainboard/google/octopus/variants/meep/Makefile.inc b/src/mainboard/google/octopus/variants/meep/Makefile.inc
new file mode 100644
index 0000000000..9fb63f5f43
--- /dev/null
+++ b/src/mainboard/google/octopus/variants/meep/Makefile.inc
@@ -0,0 +1,3 @@
+bootblock-y += gpio.c
+
+ramstage-y += gpio.c
diff --git a/src/mainboard/google/octopus/variants/meep/gpio.c b/src/mainboard/google/octopus/variants/meep/gpio.c
new file mode 100644
index 0000000000..0f313885b9
--- /dev/null
+++ b/src/mainboard/google/octopus/variants/meep/gpio.c
@@ -0,0 +1,76 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright 2018 Google LLC.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.See the
+ * GNU General Public License for more details.
+ */
+
+#include <baseboard/gpio.h>
+#include <baseboard/variants.h>
+#include <gpio.h>
+#include <soc/gpio.h>
+
+static const struct pad_config default_override_table[] = {
+	PAD_NC(GPIO_104, UP_20K),
+
+	/* CAM_SOC_EC_SYNC */
+	PAD_CFG_GPI_APIC_IOS(GPIO_134, NONE, DEEP, EDGE_SINGLE, INVERT, TxDRxE,
+			     DISPUPD),
+
+	/* EN_PP3300_TOUCHSCREEN */
+	PAD_CFG_GPO_IOSSTATE_IOSTERM(GPIO_146, 0, DEEP, NONE, Tx0RxDCRx0,
+				     DISPUPD),
+
+	/* EN_PP3300_WLAN_L */
+	PAD_CFG_GPO(GPIO_178, 0, DEEP),
+};
+
+const struct pad_config *variant_override_gpio_table(size_t *num)
+{
+	*num = ARRAY_SIZE(default_override_table);
+	return default_override_table;
+}
+
+/* GPIOs needed prior to ramstage. */
+static const struct pad_config early_gpio_table[] = {
+	/* PCH_WP_OD */
+	PAD_CFG_GPI(GPIO_190, NONE, DEEP),
+	/* H1_PCH_INT_ODL */
+	PAD_CFG_GPI_APIC_IOS(GPIO_63, NONE, DEEP, EDGE_SINGLE, INVERT, TxDRxE,
+			     DISPUPD),
+	/* H1_SLAVE_SPI_CLK_R */
+	PAD_CFG_NF(GPIO_79, NONE, DEEP, NF1),
+	/* H1_SLAVE_SPI_CS_L_R */
+	PAD_CFG_NF(GPIO_80, NONE, DEEP, NF1),
+	/* H1_SLAVE_SPI_MISO */
+	PAD_CFG_NF(GPIO_82, NONE, DEEP, NF1),
+	/* H1_SLAVE_SPI_MOSI_R */
+	PAD_CFG_NF(GPIO_83, NONE, DEEP, NF1),
+
+	PAD_CFG_GPO(GPIO_178, 0, DEEP),
+
+	/* WLAN_PE_RST */
+	PAD_CFG_GPO(GPIO_164, 0, DEEP),
+
+	/*
+	 * ESPI_IO1 acts as ALERT# (which is open-drain) and requies a weak
+	 * pull-up for proper operation. Since there is no external pull present
+	 * on this platform, configure an internal weak pull-up.
+	 */
+	PAD_CFG_NF_IOSSTATE_IOSTERM(GPIO_151, UP_20K, DEEP, NF2, HIZCRx1,
+				    ENPU),
+};
+
+const struct pad_config *variant_early_gpio_table(size_t *num)
+{
+	*num = ARRAY_SIZE(early_gpio_table);
+	return early_gpio_table;
+}
diff --git a/src/mainboard/google/octopus/variants/meep/overridetree.cb b/src/mainboard/google/octopus/variants/meep/overridetree.cb
index d29e6c1e4c..20cd9d127c 100644
--- a/src/mainboard/google/octopus/variants/meep/overridetree.cb
+++ b/src/mainboard/google/octopus/variants/meep/overridetree.cb
@@ -49,7 +49,7 @@ chip soc/intel/apollolake
 				register "probed" = "1"
 				register "reset_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_HIGH(GPIO_105)"
 				register "reset_delay_ms" = "20"
-				register "enable_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_HIGH(GPIO_213)"
+				register "enable_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_HIGH(GPIO_146)"
 				register "enable_delay_ms" = "1"
 				register "has_power_resource" = "1"
 				device i2c 10 on end