[coreboot-gerrit] [M] Change in coreboot[master]: mb/google/rex: Enable ACPI power resource for Fibocom modem

[Kapil Porwal (Code Review)]

Attention is currently required from: Tarun Tuli, Subrata Banik.

Kapil Porwal has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/74190 )

Change subject: mb/google/rex: Enable ACPI power resource for Fibocom modem
......................................................................

mb/google/rex: Enable ACPI power resource for Fibocom modem

Enable ACPI power resource for Fibocom modem.

BUG=b:253467124
TEST=Verify ACPI code for Fibocom moden in the OS.

SSDT snippet:
    Scope (_SB.PCI0.XHCI.RHUB.HS05)
    {
        Method (FHRF, 1, Serialized)
        {
            0x22 = _SB.PCI0.GTXS /* External reference */
            Local0
            Local0 ^= One
            If ((Local0 == Zero))
            {
                _SB.PCI0.CTXS (0x22)
            }

Sleep (0x0A)
            _SB.PCI0.CTXS (0x44)
            If ((Arg0 == Zero))
            {
                Sleep (0x0A)
            }
            ElseIf ((Arg0 == One))
            {
                Sleep (0x0A)
                _SB.PCI0.CTXS (0x55)
                Sleep (0x01F4)
            }
        }

Method (SHRF, 0, Serialized)
        {
            _SB.PCI0.STXS (0x55)
            Sleep (0x14)
            _SB.PCI0.STXS (0x44)
            Sleep (0x50)
            _SB.PCI0.STXS (0x22)
            Sleep (0x64)
        }

Method (_RST, 0, Serialized)  // _RST: Device Reset
        {
            FHRF (Zero)
            SHRF ()
        }

Method (DPTS, 1, Serialized)
        {
            FHRF (One)
        }

Device (MRST)
        {
            Name (_ADR, 0x0000000000000000)  // _ADR: Address
            Method (_RST, 0, Serialized)  // _RST: Device Reset
            {
                FHRF (One)
                SHRF ()
            }
        }

Name (_PR0, Package (0x01)  // _PR0: Power Resources for D0
        {
            PR00
        })
        Name (_PR3, Package (0x01)  // _PR3: Power Resources for D3hot
        {
            PR00
        })
        PowerResource (PR00, 0x00, 0x0000)
        {
            Method (_STA, 0, Serialized)  // _STA: Status
            {
                0x22 = _SB.PCI0.GTXS /* External reference */
                Local0
                Local0 ^= One
                If (Local0)
                {
                    Return (Zero)
                }

Return (One)
            }

Method (_ON, 0, Serialized)  // _ON_: Power On
            {
                Local0 = _STA ()
                If ((Local0 == One))
                {
                    Return (Zero)
                }

SHRF ()
            }

Method (_OFF, 0, Serialized)  // _OFF: Power Off
            {
                FHRF (One)
            }
        }
    }

Signed-off-by: Kapil Porwal 
Change-Id: Iaaa1a0c65c6bab205213c108f84fd53328ac777b
---
M src/mainboard/google/rex/variants/rex0/overridetree.cb
1 file changed, 135 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/90/74190/1

diff --git a/src/mainboard/google/rex/variants/rex0/overridetree.cb b/src/mainboard/google/rex/variants/rex0/overridetree.cb
index 44d20cb..226d806 100644
--- a/src/mainboard/google/rex/variants/rex0/overridetree.cb
+++ b/src/mainboard/google/rex/variants/rex0/overridetree.cb
@@ -202,6 +202,16 @@
    					register "type" = "UPC_TYPE_INTERNAL"
    					device ref usb2_port5 on
    						probe CELLULAR CELLULAR_USB
+							chip drivers/wwan/fm
+								register "fcpo_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_LOW(GPP_E07)"
+								register "reset_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_LOW(GPP_A15)"
+								register "perst_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_LOW(GPP_C05)"
+								register "wake_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_LOW(GPP_F10)"
+								register "has_power_resource" = "1"
+								device generic 0 alias usb2_wwan on
+									probe CELLULAR CELLULAR_USB
+								end
+							end
    					end
    				end
    				chip drivers/usb/acpi
@@ -238,6 +248,16 @@
    					register "type" = "UPC_TYPE_INTERNAL"
    					device ref usb3_port2 on
    						probe CELLULAR CELLULAR_USB
+							chip drivers/wwan/fm
+								register "fcpo_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_LOW(GPP_E07)"
+								register "reset_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_LOW(GPP_A15)"
+								register "perst_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_LOW(GPP_C05)"
+								register "wake_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_LOW(GPP_F10)"
+								register "has_power_resource" = "1"
+								device generic 0 alias usb3_wwan on
+									probe CELLULAR CELLULAR_USB
+								end
+							end
    					end
    				end
    			end
@@ -541,6 +561,7 @@
    			register "reset_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_LOW(GPP_A15)"
    			register "perst_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_LOW(GPP_C05)"
    			register "wake_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_LOW(GPP_F10)"
+				register "has_power_resource" = "1"
    			register "add_acpi_dma_property" = "true"
    			use rp6_rtd3 as rtd3dev
    			device generic 0 alias rp6_wwan on