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mb/google/brya/var/trulo: Add LSIO descriptions

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This patch adds descriptions for Low Speed I/O (I2Cx, GSPIx, UARTx)
to the device tree.

It also includes entries that will generate ACPI code at runtime
with LSIO end-point device.

BUG=b:351976770
TEST=Builds successfully for google/trulo.

Change-Id: I94a3a7f6f85d84407f32ab4c879b236a80859f2d
Signed-off-by: Subrata Banik <subratabanik@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/83550
Reviewed-by: Eric Lai <ericllai@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This commit is contained in:
Subrata Banik
2024-07-18 23:40:11 +05:30
parent 3b3a052596
commit e60989db36
1 changed files with 98 additions and 0 deletions
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98
src/mainboard/google/brya/variants/trulo/overridetree.cb
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@@ -24,6 +24,67 @@ chip soc/intel/alderlake
# Bit 1,3 - AUX lines are not swapped on the motherboard for either C0 or C1.
register "tcss_aux_ori" = "0"
register "serial_io_i2c_mode" = "{
[PchSerialIoIndexI2C0] = PchSerialIoPci,
[PchSerialIoIndexI2C1] = PchSerialIoPci,
[PchSerialIoIndexI2C2] = PchSerialIoDisabled,
[PchSerialIoIndexI2C3] = PchSerialIoDisabled,
[PchSerialIoIndexI2C4] = PchSerialIoDisabled,
[PchSerialIoIndexI2C5] = PchSerialIoPci,
}"
register "serial_io_gspi_mode" = "{
[PchSerialIoIndexGSPI0] = PchSerialIoDisabled,
[PchSerialIoIndexGSPI1] = PchSerialIoDisabled,
}"
register "serial_io_uart_mode" = "{
[PchSerialIoIndexUART0] = PchSerialIoPci,
[PchSerialIoIndexUART1] = PchSerialIoDisabled,
[PchSerialIoIndexUART2] = PchSerialIoDisabled,
}"
# Intel Common SoC Config
#+-------------------+---------------------------+
#| Field | Value |
#+-------------------+---------------------------+
#| I2C0 | TPM. Early init is |
#| | required to set up a BAR |
#| | for TPM communication |
#| I2C1 | Trackpad |
#| I2C5 | Touchscreen |
#+-------------------+---------------------------+
register "common_soc_config" = "{
.i2c[0] = {
.early_init = 1,
.speed = I2C_SPEED_FAST_PLUS,
.speed_config[0] = {
.speed = I2C_SPEED_FAST_PLUS,
.scl_lcnt = 55,
.scl_hcnt = 30,
.sda_hold = 7,
}
},
.i2c[1] = {
.speed = I2C_SPEED_FAST,
.speed_config[0] = {
.speed = I2C_SPEED_FAST,
.scl_lcnt = 158,
.scl_hcnt = 79,
.sda_hold = 7,
}
},
.i2c[5] = {
.speed = I2C_SPEED_FAST,
.speed_config[0] = {
.speed = I2C_SPEED_FAST,
.scl_lcnt = 158,
.scl_hcnt = 79,
.sda_hold = 7,
}
},
}"
device domain 0 on
device ref igpu on end
device ref tcss_xhci on
@@ -93,6 +154,42 @@ chip soc/intel/alderlake
end
end
device ref shared_sram on end
device ref i2c0 on
chip drivers/i2c/tpm
register "hid" = ""GOOG0005""
register "irq" = "ACPI_IRQ_EDGE_LOW(GPP_A17_IRQ)"
device i2c 50 on end
end
end #I2C0
device ref i2c1 on
chip drivers/i2c/generic
register "hid" = ""ELAN0000""
register "desc" = ""ELAN Touchpad""
register "irq" = "ACPI_IRQ_WAKE_LEVEL_LOW(GPP_B3_IRQ)"
register "wake" = "GPE0_DW1_03"
register "detect" = "1"
device i2c 15 on end
end
end #I2C1
device ref i2c5 on
chip drivers/i2c/hid
register "generic.hid" = ""ELAN9004""
register "generic.desc" = ""ELAN Touchscreen""
register "generic.irq" = "ACPI_IRQ_LEVEL_LOW(GPP_D16_IRQ)"
register "generic.detect" = "1"
register "generic.reset_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_LOW(GPP_D15)"
register "generic.reset_delay_ms" = "20"
register "generic.reset_off_delay_ms" = "2"
register "generic.enable_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_HIGH(GPP_E17)"
register "generic.enable_delay_ms" = "1"
register "generic.stop_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_LOW(GPP_A21)"
register "generic.stop_delay_ms" = "150"
register "generic.stop_off_delay_ms" = "2"
register "generic.has_power_resource" = "1"
register "hid_desc_reg_offset" = "0x01"
device i2c 10 on end
end
end #I2C5
device ref heci1 on end
device ref emmc on end
device ref ish on
@@ -102,6 +199,7 @@ chip soc/intel/alderlake
end
end
device ref ufs on end
device ref uart0 on end
device ref pch_espi on
chip ec/google/chromeec
use conn0 as mux_conn[0]