coreboot/src
Kirubakaran E 521e7949c1 mb/google/bluey: Add support to reduce CPU clock to minimum frequency during OFF‑mode charging
This change adds support to drop the CPU frequency to the minimum
806 MHz when the device enters OFF‑mode charging, improving power
efficiency. The register details are available in the
HRD-X1P42100-S1 hardware document:
https://docs.qualcomm.com/bundle/resource/topics/HRD-X1P42100-S1/

Tested by creating an image.serial.bin and verifying that it boots
on X1P42100 and the CPU runs at 806 MHz during OFF‑mode charging.

Change-Id: I8f0d5b598a4dad419195957be8b334a27ec18982
Signed-off-by: Kirubakaran E <kirue@qualcomm.corp-partner.google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/91727
Reviewed-by: Subrata Banik <subratabanik@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Kapil Porwal <kapilporwal@google.com>
Reviewed-by: Jayvik Desai <jayvik@google.com>
2026-03-25 00:37:38 +00:00
..
acpi acpi/dsdt_top.asl: Move RBUF out of the _CRS method 2026-02-09 15:20:48 +00:00
arch arch/arm64: Add debug API to dump MMU page table configuration 2026-03-21 03:02:21 +00:00
commonlib {commonlib, libpayload}: Add RTC_WAKE to boot_mode_t 2026-03-21 03:04:17 +00:00
console
cpu cpu/x86/smm: reserve SMRAM for OPAL S3 state 2026-03-18 14:54:39 +00:00
device dram/ddr3: Add speed in MT/s 2026-02-19 19:20:43 +00:00
drivers drivers/amd/ftpm: Fix compilation 2026-03-23 15:07:30 +00:00
ec ec/starlabs/merlin: Remove unused halt.h 2026-03-23 14:53:43 +00:00
include smbios: Add smbios_cache_speed() implementation 2026-03-24 14:48:23 +00:00
lib smbios: Add smbios_cache_speed() implementation 2026-03-24 14:48:23 +00:00
mainboard mb/google/bluey: Add support to reduce CPU clock to minimum frequency during OFF‑mode charging 2026-03-25 00:37:38 +00:00
northbridge nb/intel/haswell: Enable SA clock gating later 2026-03-17 20:08:49 +00:00
sbom
security vc/tcg/opal: add OPAL packet builder for S3 unlock 2026-03-19 19:36:48 +00:00
soc soc/qualcomm/x1p42100: Add LPASS bring-up sequence for ADSP cold boot 2026-03-25 00:37:06 +00:00
southbridge sb/intel/wildcatpoint/pcie.c: Reorder some steps 2026-03-06 20:06:58 +00:00
superio sio/nuvoton/nct6776: Switch to common init code 2026-02-19 19:19:43 +00:00
vendorcode vc/tcg/opal: add OPAL packet builder for S3 unlock 2026-03-19 19:36:48 +00:00
Kconfig Kconfig: move IOAPIC option to x86 Kconfig 2026-03-07 20:57:24 +00:00