mb/google/guybrush: Update GPIOs settings

- The WWAN card was being disabled later than desired.
- The SD card was never being placed into reset on BoardID 1.
- Enable Touchscreen power
- Enable PCIe_RST1 at the same points as PCIe_RST
- Remove Redundant Bootblock settings

BUG=b:193036827
TEST=Build & Boot, look at GPIO states through boot process

Signed-off-by: Martin Roth <martinroth@chromium.org>
Change-Id: I5431da755d98e4ad0b300d01cac562d61db0bc08
Reviewed-on: https://review.coreboot.org/c/coreboot/+/56498
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Matt Papageorge <matthewpapa07@gmail.com>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
Reviewed-by: Karthik Ramasubramanian <kramasub@google.com>

src/mainboard/google/guybrush/variants/baseboard/gpio.c

@@ -58,7 +58,7 @@ static const struct soc_amd_gpio base_gpio_table[] = {
 	/* PCIE_RST0_L */
 	PAD_NFO(GPIO_26, PCIE_RST_L, HIGH),
 	/* PCIE_RST1_L */
-	PAD_NF(GPIO_27, PCIE_RST1_L, PULL_NONE),
+	PAD_NFO(GPIO_27, PCIE_RST1_L, HIGH),
 	/* GPIO_28: Not available */
 	/* WLAN_AUX_RESET (Active HIGH)*/
 	PAD_GPO(GPIO_29, LOW),
@@ -78,7 +78,7 @@ static const struct soc_amd_gpio base_gpio_table[] = {
 	/* SOC_BIOS_WP_L */
 	PAD_GPI(GPIO_67, PULL_NONE),
 	/* EN_PP3300_TCHSCR */
-	PAD_GPO(GPIO_68, LOW),
+	PAD_GPO(GPIO_68, HIGH),
 	/* SD_AUX_RESET_L */
 	PAD_GPO(GPIO_69, HIGH),
 	/* Unused TP27  */
@@ -167,6 +167,7 @@ static const struct soc_amd_gpio base_gpio_table[] = {
 
 /* Early GPIO configuration */
 static const struct soc_amd_gpio early_gpio_table[] = {
+	/* Assert all AUX reset lines */
 	/* WWAN_AUX_RESET_L */
 	PAD_GPO(GPIO_18, LOW),
 	/* WLAN_AUX_RESET (ACTIVE HIGH) */
@@ -177,8 +178,12 @@ static const struct soc_amd_gpio early_gpio_table[] = {
 	PAD_GPO(GPIO_69, LOW),
 	/* Guybrush BID>1: Unused TP27; BID==1: SD_AUX_RESET_L */
 	PAD_NC(GPIO_70),
+
+	/* Deassert PCIe Reset lines */
 	/* PCIE_RST0_L */
 	PAD_NFO(GPIO_26, PCIE_RST_L, HIGH),
+	/* PCIE_RST1_L */
+	PAD_NFO(GPIO_27, PCIE_RST1_L, HIGH),
 
 /* Power on WLAN & WWAN */
 	/* EN_PP3300_WLAN */
@@ -239,7 +244,7 @@ static const struct soc_amd_gpio early_gpio_table[] = {
  */
 
 static const struct soc_amd_gpio bootblock_gpio_table[] = {
-/* Enable WWAN & WLAN */
+	/* Enable WWAN & WLAN power, Deassert WWAN reset */
 	/* EN_PWR_WWAN_X */
 	PAD_GPO(GPIO_8, HIGH),
 	/* WWAN_RST_L */
@@ -257,7 +262,15 @@ static const struct soc_amd_gpio sleep_gpio_table[] = {
 
 /* PCIE_RST needs to be brought high before FSP-M runs */
 static const struct soc_amd_gpio pcie_gpio_table[] = {
-/* Disable all AUX_RESET lines & PCIE_RST */
+	/* Allow WWAN power to be overridden by platform */
+	/* EN_PWR_WWAN_X */
+	PAD_GPO(GPIO_8, HIGH),
+	/* WWAN_RST_L */
+	PAD_GPO(GPIO_24, HIGH),
+	/* WWAN_DISABLE */
+	PAD_GPO(GPIO_85, LOW),
+
+	/* Deassert all AUX_RESET lines & PCIE_RST */
 	/* WWAN_AUX_RESET_L */
 	PAD_GPO(GPIO_18, HIGH),
 	/* WLAN_AUX_RESET (ACTIVE HIGH) */

src/mainboard/google/guybrush/variants/guybrush/gpio.c

@@ -23,21 +23,29 @@ static const struct soc_amd_gpio bid1_gpio_table[] = {
 /* Use AUX Reset lines instead of PCIE_RST for Board Version 1 */
 static const struct soc_amd_gpio bid1_early_gpio_table[] = {
 	/* SD_AUX_RESET_L */
-	PAD_GPO(GPIO_70, HIGH),
+	PAD_GPO(GPIO_70, LOW),
 };
 
 /* This table is used by guybrush variant with board version < 2. */
 static const struct soc_amd_gpio bid1_pcie_gpio_table[] = {
+	/* EN_PWR_WWAN_X */
+	PAD_GPO(GPIO_8, LOW),
+	/* WWAN_RST_L */
+	PAD_GPO(GPIO_24, LOW),
+	/* WWAN_DISABLE */
+	PAD_GPO(GPIO_85, HIGH),
 	/* SD_AUX_RESET_L */
 	PAD_GPO(GPIO_70, HIGH),
 };
 
-/* WWAN on USB or no WWAN - Disable the WWAN power line */
+/* This table is used by guybrush variant with board version >= 2. */
-static const struct soc_amd_gpio bootblock_gpio_table_pcie_wwan[] = {
+static const struct soc_amd_gpio bid2_pcie_gpio_table[] = {
 	/* EN_PWR_WWAN_X */
 	PAD_GPO(GPIO_8, LOW),
-	/* WLAN_DISABLE */
+	/* WWAN_RST_L */
-	PAD_GPO(GPIO_130, LOW),
+	PAD_GPO(GPIO_24, LOW),
+	/* WWAN_DISABLE */
+	PAD_GPO(GPIO_85, HIGH),
 };
 
 const struct soc_amd_gpio *variant_override_gpio_table(size_t *size)
@@ -76,14 +84,6 @@ const struct soc_amd_gpio *variant_pcie_override_gpio_table(size_t *size)
 		return bid1_pcie_gpio_table;
 	}
 
-	return NULL;
+	*size = ARRAY_SIZE(bid2_pcie_gpio_table);
-}
+	return bid2_pcie_gpio_table;
-const struct soc_amd_gpio *variant_bootblock_override_gpio_table(size_t *size)
-{
-	if (variant_has_pcie_wwan()) {
-		*size = ARRAY_SIZE(bootblock_gpio_table_pcie_wwan);
-		return bootblock_gpio_table_pcie_wwan;
-	}
-
-	return NULL;
 }