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authorKarthikeyan Ramasubramanian <kramasub@google.com>2020-10-23 16:54:11 -0600
committerPatrick Georgi <pgeorgi@google.com>2020-11-09 07:37:16 +0000
commit3d4513e7c8e27dbb9c6b941c4eb4144d38ff5cee (patch)
tree486c32d3fe4680304f373758c7f8fa345feeebe1 /src/lib/hardwaremain.c
parent2313e54bf91761e61c777a699cf4047a5f4689cc (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>
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