Change in coreboot[master]: mb/google/dedede/var/drawcia: Add LTE modem support for drawper

[Tony Huang (Code Review)]

Tony Huang has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/55181 )

Change subject: mb/google/dedede/var/drawcia: Add LTE modem support for drawper
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mb/google/dedede/var/drawcia: Add LTE modem support for drawper

Add LTE modem to devicetree
Configure GPIO control for LTE modem

BUG=b:186393848
TEST=Built image and verified with command modem status

Change-Id: I20450ae37e5047dba67211316515994bd2a09600
Signed-off-by: Tony Huang 
---
M src/mainboard/google/dedede/variants/drawcia/gpio.c
M src/mainboard/google/dedede/variants/drawcia/overridetree.cb
2 files changed, 27 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/81/55181/1

diff --git a/src/mainboard/google/dedede/variants/drawcia/gpio.c b/src/mainboard/google/dedede/variants/drawcia/gpio.c
index 96b64cc..279c891 100644
--- a/src/mainboard/google/dedede/variants/drawcia/gpio.c
+++ b/src/mainboard/google/dedede/variants/drawcia/gpio.c
@@ -16,8 +16,20 @@
 /* bid6: Pad configuration for board version 6 or 8 in ramstage*/
 static const struct pad_config board6or8_gpio_table[] = {

+	/* A10 : WWAN_EN */
+	PAD_CFG_GPO(GPP_A10, 1, PWROK),
+
+	/* B7  : PCIE_CLKREQ2_N ==> WWAN_SAR_DETECT_ODL*/
+	PAD_CFG_GPO(GPP_B7, 1, DEEP),
+
    /* C12 : AP_PEN_DET_ODL has an external pull-up and hence no pad termination.*/
    PAD_CFG_GPI_GPIO_DRIVER(GPP_C12, NONE, DEEP),
+
+	/* D0  : WWAN_HOST_WAKE ==> WWAN_WDISABLE_L */
+	PAD_CFG_GPO(GPP_D0, 1, DEEP),
+
+	/* H0 : WWAN_PERST */
+	PAD_CFG_GPO(GPP_H0, 0, PLTRST),
 };

const struct pad_config *variant_override_gpio_table(size_t *num)
diff --git a/src/mainboard/google/dedede/variants/drawcia/overridetree.cb b/src/mainboard/google/dedede/variants/drawcia/overridetree.cb
index e157894..e3900c6 100644
--- a/src/mainboard/google/dedede/variants/drawcia/overridetree.cb
+++ b/src/mainboard/google/dedede/variants/drawcia/overridetree.cb
@@ -144,10 +144,25 @@
    		chip drivers/usb/acpi
    			device usb 0.0 on
    				chip drivers/usb/acpi
+						register "desc" = ""LTE""
+						register "type" = "UPC_TYPE_INTERNAL"
+						register "has_power_resource" = "1"
+						register "reset_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_LOW(GPP_H0)"
+						register "reset_off_delay_ms" = "20"
+						register "enable_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_HIGH(GPP_A10)"
+						register "enable_delay_ms" = "20"
+						device usb 2.3 on end
+					end
+					chip drivers/usb/acpi
    					register "desc" = ""Camera""
    					register "type" = "UPC_TYPE_INTERNAL"
    					device usb 2.5 on end
    				end
+					chip drivers/usb/acpi
+						register "desc" = ""LTE""
+						register "type" = "UPC_TYPE_INTERNAL"
+						device usb 3.3 on end
+					end
    			end
    		end
    	end # USB xHCI