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authorTeddy Shih <teddyshih@ami.corp-partner.google.com>2022-03-14 14:40:08 +0800
committerKarthik Ramasubramanian <kramasub@google.com>2022-04-07 15:31:57 +0000
commit369b9ad78705fcc2bfa0ad6672e61c2d3cc135f8 (patch)
tree1454dd2cea3f790c467c22979f040b6f4b2631b5 /src/cpu/qemu-power8/qemu.c
parent0fd3c38d8431620ffe424c52e9d81ae9db2a8007 (diff)
mb/google/dedede/var/beadrix: Update PCIe and SATA pins for low power consumption
To achieve low power consumption, we disable unused PCIe and SATA pins at beadrix/overridetree.cb according to baseboard/devicetree.cb and mainboard schematic. Original measured beadrix board's power consumption is about 250 mW. After we disable unused PCIe and SATA pins, as well as, enable the other low power MUX CL (3487086: USB MUX: Update low power mode of MUX anx7447 used as MUX only | https://chromium-review.googlesource.com/c/chromiumos/platform/ec/ +/3487086), the measured power consumption achieves about 110 ~ 116 mW, as well as, meets Google battery life for 14 days in the suspend state and Intel low power consumption about 116 mW. BRANCH=dedede BUG=b:204882915 TEST=on beadrix, measured power consumption meets Intel power consumption. Signed-off-by: Teddy Shih <teddyshih@ami.corp-partner.google.com> Change-Id: I79ec524c5ce8f2a79da4aeba084786fb9dac17af Reviewed-on: https://review.coreboot.org/c/coreboot/+/62776 Reviewed-by: Teddy Shih <teddyshihau@gmail.com> Reviewed-by: Paul Menzel <paulepanter@mailbox.org> Reviewed-by: Super Ni <super.ni@intel.corp-partner.google.com> Reviewed-by: Karthik Ramasubramanian <kramasub@google.com> Reviewed-by: Ivan Chen <yulunchen@google.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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