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authorKyösti Mälkki <kyosti.malkki@gmail.com>2022-12-02 15:30:10 +0200
committerKyösti Mälkki <kyosti.malkki@gmail.com>2023-08-16 17:55:02 +0000
commit027f86e6af023b338a0f1d8a999a8f33eeacb010 (patch)
tree691450089ec0116cba1ec04b1b73ca3dea39aaf5 /src/mainboard/google/butterfly
parent4a9de553c5307595f396b47aaa108bf1dc34638d (diff)
ACPI: Add usb_charge_mode_from_gnvs()
Early Chromebook generations stored the information about USB port power control for S3/S5 sleepstates in GNVS, although the configuration is static. Reduce code duplication and react to ACPI S4 as if it was ACPI S5 request. Change-Id: I7e6f37a023b0e9317dcf0355dfa70e28d51cdad9 Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/74524 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Matt DeVillier <matt.devillier@gmail.com>
Diffstat (limited to 'src/mainboard/google/butterfly')
-rw-r--r--src/mainboard/google/butterfly/Kconfig1
-rw-r--r--src/mainboard/google/butterfly/acpi_tables.c8
-rw-r--r--src/mainboard/google/butterfly/smihandler.c7
3 files changed, 6 insertions, 10 deletions
diff --git a/src/mainboard/google/butterfly/Kconfig b/src/mainboard/google/butterfly/Kconfig
index 49ac7d2ae1..1eb81eee81 100644
--- a/src/mainboard/google/butterfly/Kconfig
+++ b/src/mainboard/google/butterfly/Kconfig
@@ -2,6 +2,7 @@ if BOARD_GOOGLE_BUTTERFLY
config BOARD_SPECIFIC_OPTIONS
def_bool y
+ select ACPI_GNVS_USB_CHARGECTL
select BOARD_ROMSIZE_KB_8192
select EC_QUANTA_ENE_KB3940Q
select GFX_GMA_PANEL_1_ON_LVDS
diff --git a/src/mainboard/google/butterfly/acpi_tables.c b/src/mainboard/google/butterfly/acpi_tables.c
index aa02f67be5..5973ffb8ff 100644
--- a/src/mainboard/google/butterfly/acpi_tables.c
+++ b/src/mainboard/google/butterfly/acpi_tables.c
@@ -6,14 +6,6 @@
void mainboard_fill_gnvs(struct global_nvs *gnvs)
{
- /* Disable USB ports in S3 by default */
- gnvs->s3u0 = 0;
- gnvs->s3u1 = 0;
-
- /* Disable USB ports in S5 by default */
- gnvs->s5u0 = 0;
- gnvs->s5u1 = 0;
-
// the lid is open by default.
gnvs->lids = 1;
diff --git a/src/mainboard/google/butterfly/smihandler.c b/src/mainboard/google/butterfly/smihandler.c
index 23bd683f2d..7963dac313 100644
--- a/src/mainboard/google/butterfly/smihandler.c
+++ b/src/mainboard/google/butterfly/smihandler.c
@@ -1,8 +1,8 @@
/* SPDX-License-Identifier: GPL-2.0-only */
+#include <acpi/acpi_gnvs.h>
#include <console/console.h>
#include <cpu/x86/smm.h>
-#include <soc/nvs.h>
#include <southbridge/intel/bd82x6x/pch.h>
#include <southbridge/intel/bd82x6x/me.h>
#include <northbridge/intel/sandybridge/sandybridge.h>
@@ -13,8 +13,11 @@
void mainboard_smi_sleep(u8 slp_typ)
{
+ bool usb0_disable = 0, usb1_disable = 0;
+
/* Tell the EC to Enable USB power for S3 if requested */
- if (gnvs->s3u0 != 0 || gnvs->s3u1 != 0)
+ usb_charge_mode_from_gnvs(3, &usb0_disable, &usb1_disable);
+ if (!usb0_disable || !usb1_disable)
ec_mem_write(EC_EC_PSW, ec_mem_read(EC_EC_PSW) | EC_PSW_USB);
/* Disable wake on USB, LAN & RTC */