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authorPandya, Varshit B <varshit.b.pandya@intel.com>2020-03-03 22:45:44 +0530
committerPatrick Georgi <pgeorgi@google.com>2020-03-12 07:41:25 +0000
commit4f8b00602c10088ceee2485821ceb53dbbf717ad (patch)
tree9f521503e48bdf9d58f6067905efe55fba508633
parentd1f3022ebfce359ba26401bba8f71913fbc61886 (diff)
downloadcoreboot-4f8b00602c10088ceee2485821ceb53dbbf717ad.tar.xz
mb/google/dedede: Enable trackpad support
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>
-rw-r--r--src/mainboard/google/dedede/variants/baseboard/gpio.c2
-rw-r--r--src/mainboard/google/dedede/variants/waddledoo/overridetree.cb52
2 files changed, 52 insertions, 2 deletions
diff --git a/src/mainboard/google/dedede/variants/baseboard/gpio.c b/src/mainboard/google/dedede/variants/baseboard/gpio.c
index af95f6a733..fe903bd934 100644
--- a/src/mainboard/google/dedede/variants/baseboard/gpio.c
+++ b/src/mainboard/google/dedede/variants/baseboard/gpio.c
@@ -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 */
diff --git a/src/mainboard/google/dedede/variants/waddledoo/overridetree.cb b/src/mainboard/google/dedede/variants/waddledoo/overridetree.cb
index ac9d576d01..061a0f865f 100644
--- a/src/mainboard/google/dedede/variants/waddledoo/overridetree.cb
+++ b/src/mainboard/google/dedede/variants/waddledoo/overridetree.cb
@@ -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