diff options
| author | Karthikeyan Ramasubramanian <kramasub@google.com> | 2020-10-23 16:54:11 -0600 |
|---|---|---|
| committer | Patrick Georgi <pgeorgi@google.com> | 2020-11-09 07:37:16 +0000 |
| commit | 3d4513e7c8e27dbb9c6b941c4eb4144d38ff5cee (patch) | |
| tree | 486c32d3fe4680304f373758c7f8fa345feeebe1 /src/mainboard/google/dedede/variants/boten/overridetree.cb | |
| parent | 2313e54bf91761e61c777a699cf4047a5f4689cc (diff) | |
mb/google/dedede/var/boten: Add LTE power on/off sequence
LTE module used in boten has a specific power on/off sequence.
GPIOs related to power sequnce are:
* GPP_A10 - LTE_PWR_OFF_R_ODL
* GPP_H17 - LTE_RESET_R_ODL
1. Power on: GPP_A10 -> 20ms -> GPP_H17
2. Power off: GPP_H17 -> 10ms -> GPP_A10
3. Warm reset: Power off -> 500ms -> Power on
Configure the GPIOs based on these requirements.
BUG=b:163100335
TEST=Build and boot Boten to OS. Ensure that the LTE module power
sequence requirements are met.
Change-Id: Ic6d5d21ce5267f147b332a4c9b01a29b3b8ccfb8
Signed-off-by: Karthikeyan Ramasubramanian <kramasub@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/44588
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Peichao Wang <pwang12@lenovo.corp-partner.google.com>
Reviewed-by: Marco Chen <marcochen@google.com>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Diffstat (limited to 'src/mainboard/google/dedede/variants/boten/overridetree.cb')
| -rw-r--r-- | src/mainboard/google/dedede/variants/boten/overridetree.cb | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/src/mainboard/google/dedede/variants/boten/overridetree.cb b/src/mainboard/google/dedede/variants/boten/overridetree.cb index 4ec64579c2..4966aac491 100644 --- a/src/mainboard/google/dedede/variants/boten/overridetree.cb +++ b/src/mainboard/google/dedede/variants/boten/overridetree.cb @@ -65,6 +65,11 @@ chip soc/intel/jasperlake 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_H17)" + register "reset_off_delay_ms" = "10" + 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 |