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LTE module used in metaknight has a specific power on/off sequence.
GPIOs related to power sequence 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: GPP_A10 keeps high, GPP_H17 goes low at least 2ms
Configure the GPIOs based on these requirements.
BUG=b:173671094
TEST=Build and boot Metaknight to OS. Ensure that the LTE module power
sequence requirements are met.
Change-Id: Ibff16129dfe2f1de2b1519049244aba4b3123e52
Signed-off-by: Tim Chen <tim-chen@quanta.corp-partner.google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/48195
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Karthik Ramasubramanian <kramasub@google.com>
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