From 7fe005ff30177db96d2ad31742404ac91330700e Mon Sep 17 00:00:00 2001 From: Kangheui Won Date: Thu, 6 Aug 2020 19:03:23 +1000 Subject: amd/picasso/acpi: Add power resources for UART0 Follow-up for a31a769 - "amd/picasso/acpi: Add power resources for I2C and UART". Now PSP properly handles UART0 D3, we can shutdown UART0. BUG=b:158772504 TEST=suspend_stress_test for 50 cycles, * echo 1 > /sys/module/acpi/parameters/aml_debug_output * dmesg | grep FUR to check on&off for FUR0 [ 2413.647500] ACPI Debug: "AOAC.FUR0._OFF" [ 2413.736265] ACPI Debug: "AOAC.FUR0._ON" Change-Id: I25457e18b69d28a83e42c2fe02b45a3979ad58cd Signed-off-by: Kangheui Won Reviewed-on: https://review.coreboot.org/c/coreboot/+/44266 Tested-by: build bot (Jenkins) Reviewed-by: Raul Rangel Reviewed-by: Aaron Durbin --- src/soc/amd/picasso/acpi/aoac.asl | 1 + src/soc/amd/picasso/acpi/sb_fch.asl | 12 ++++++++++++ 2 files changed, 13 insertions(+) (limited to 'src/soc/amd') diff --git a/src/soc/amd/picasso/acpi/aoac.asl b/src/soc/amd/picasso/acpi/aoac.asl index 727b9bb444..ffdfcd451c 100644 --- a/src/soc/amd/picasso/acpi/aoac.asl +++ b/src/soc/amd/picasso/acpi/aoac.asl @@ -139,6 +139,7 @@ Device (AOAC) { AOAC_DEVICE(I2C2, 7, 0) AOAC_DEVICE(I2C3, 8, 0) + AOAC_DEVICE(FUR0, 11, 0) AOAC_DEVICE(FUR1, 12, 0) AOAC_DEVICE(FUR2, 16, 0) AOAC_DEVICE(FUR3, 26, 0) diff --git a/src/soc/amd/picasso/acpi/sb_fch.asl b/src/soc/amd/picasso/acpi/sb_fch.asl index 4eca52c048..6cbfc5f664 100644 --- a/src/soc/amd/picasso/acpi/sb_fch.asl +++ b/src/soc/amd/picasso/acpi/sb_fch.asl @@ -122,6 +122,18 @@ Device (FUR0) Return (Local0) } } + + Name (_PR0, Package () { \_SB.AOAC.FUR0 }) + Name (_PR2, Package () { \_SB.AOAC.FUR0 }) + Name (_PR3, Package () { \_SB.AOAC.FUR0 }) + Method (_PS0, 0, Serialized) { + Printf("FUR0._PS0") + \_SB.AOAC.FUR0.TDS = 1 + } + Method (_PS3, 0, Serialized) { + Printf("FUR0._PS3") + \_SB.AOAC.FUR0.TDS = 3 + } } Device (FUR1) { -- cgit v1.2.3