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mb/google/dedede: Enable trackpad support

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1. Configure trackpad interrupt GPIO.
2. Set i2c0 configuration.
3. Add trackpad ACPI support.

TEST= Verify trackpad working. Verify I2C SCL frequency below 400Khz
on trackpad operation.

Change-Id: I52c578aef591f5be90fb709bab4c8342ea9729e6
Signed-off-by: Pandya, Varshit B <varshit.b.pandya@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/39236
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Karthik Ramasubramanian <kramasub@google.com>
This commit is contained in:
Pandya, Varshit B
2020-03-03 22:45:44 +05:30
committed by Patrick Georgi
parent d1f3022ebf
commit 4f8b00602c
2 changed files with 52 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
src/mainboard/google/dedede/variants/baseboard/gpio.c
View File

@@ -55,7 +55,7 @@ static const struct pad_config gpio_table[] = {
/* B2 : PROCHOT_ODL */
PAD_NC(GPP_B2, NONE),
/* B3 : TRACKPAD_INT_ODL */
PAD_NC(GPP_B3, NONE),
PAD_CFG_GPI_IRQ_WAKE(GPP_B3, NONE, PLTRST, LEVEL, INVERT),
/* B4 : H1_PCH_INT_ODL */
PAD_CFG_GPI_APIC(GPP_B4, NONE, PLTRST, LEVEL, INVERT),
/* B5 : PCIE_CLKREQ0_N */

52
src/mainboard/google/dedede/variants/waddledoo/overridetree.cb
View File

@@ -1,3 +1,53 @@
chip soc/intel/tigerlake
device domain 0 on end
# Intel Common SoC Config
#+-------------------+---------------------------+
#| Field | Value |
#+-------------------+---------------------------+
#| GSPI0 | cr50 TPM. Early init is |
#| | required to set up a BAR |
#| | for TPM communication |
#| | before memory is up |
#| I2C0 | Trackpad |
#| I2C1 | Digitizer |
#| I2C2 | Touchscreen |
#| I2C3 | Camera |
#| I2C4 | Audio |
#+-------------------+---------------------------+
register "common_soc_config" = "{
.gspi[0] = {
.speed_mhz = 1,
.early_init = 1,
},
.i2c[0] = {
.speed = I2C_SPEED_FAST,
.rise_time_ns = 66,
.fall_time_ns = 90,
.data_hold_time_ns = 350,
},
.i2c[1] = {
.speed = I2C_SPEED_FAST,
},
.i2c[2] = {
.speed = I2C_SPEED_FAST,
},
.i2c[3] = {
.speed = I2C_SPEED_FAST,
},
.i2c[4] = {
.speed = I2C_SPEED_FAST,
},
}"
device domain 0 on
device pci 15.0 on
chip drivers/i2c/generic
register "hid" = ""ELAN0000""
register "desc" = ""ELAN Touchpad""
register "irq" = "ACPI_IRQ_WAKE_EDGE_LOW(GPP_B3_IRQ)"
register "wake" = "GPE0_DW0_03"
register "probed" = "1"
device i2c 15 on end
end
end #I2C 0
end
end