From c12e5ae1a5d809a4b74774d28a1c231591400bd3 Mon Sep 17 00:00:00 2001 From: Matt DeVillier Date: Sun, 27 Nov 2016 02:19:02 -0600 Subject: Add/Combine Haswell Chromebooks using variant board scheme Combine existing boards google/falco and google/peppy with new ChromeOS devices leon and wolf, using their common reference board (slippy) as a base. Chromium sources used: firmware-falco_peppy-4389.81.B d7703cac [falco: Add support for Samsung...] firmware-leon-4389.61.B ea1bf55 [haswell: Enable 2x Refresh Mode] firmware-wolf-4389.24.B 7c5a9c2 [Wolf: haswell: Add small delay before...] Additionally, some minor cleanup/changes were made: - I2C devices set to use ACPI (vs PCI) mode - I2C device ACPI entries adjusted as per above - I2C devices set to use level (vs edge) interrupt triggering - XHCI finalization enabled in devicetree - HDA verb entries use simplified macro entry format Existing google/falco and google/peppy boards will be removed in a subsequent commit. Variant setup modeled after google/beltino Change-Id: I087df5f98c1bb4ddd0ab24ee9ff786a9d38d87be Signed-off-by: Matt DeVillier Reviewed-on: https://review.coreboot.org/17621 Tested-by: build bot (Jenkins) Reviewed-by: Martin Roth --- src/mainboard/google/slippy/smihandler.c | 154 +++++++++++++++++++++++++++++++ 1 file changed, 154 insertions(+) create mode 100644 src/mainboard/google/slippy/smihandler.c (limited to 'src/mainboard/google/slippy/smihandler.c') diff --git a/src/mainboard/google/slippy/smihandler.c b/src/mainboard/google/slippy/smihandler.c new file mode 100644 index 0000000000..24f76f5de3 --- /dev/null +++ b/src/mainboard/google/slippy/smihandler.c @@ -0,0 +1,154 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2008-2009 coresystems GmbH + * Copyright 2012 Google Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +/* Include EC functions */ +#include +#include "ec.h" + +/* Codec enable: GPIO45 */ +#define GPIO_PP3300_CODEC_EN 45 +/* GPIO46 controls the WLAN_DISABLE_L signal. */ +#define GPIO_WLAN_DISABLE_L 46 +#define GPIO_LTE_DISABLE_L 59 + +static u8 mainboard_smi_ec(void) +{ + u8 cmd = google_chromeec_get_event(); + u32 pm1_cnt; + +#if CONFIG_ELOG_GSMI + /* Log this event */ + if (cmd) + elog_add_event_byte(ELOG_TYPE_EC_EVENT, cmd); +#endif + + switch (cmd) { + case EC_HOST_EVENT_LID_CLOSED: + printk(BIOS_DEBUG, "LID CLOSED, SHUTDOWN\n"); + + /* Go to S5 */ + pm1_cnt = inl(get_pmbase() + PM1_CNT); + pm1_cnt |= (0xf << 10); + outl(pm1_cnt, get_pmbase() + PM1_CNT); + break; + } + + return cmd; +} + +/* gpi_sts is GPIO 47:32 */ +void mainboard_smi_gpi(u32 gpi_sts) +{ + if (gpi_sts & (1 << (EC_SMI_GPI - 32))) { + /* Process all pending events */ + while (mainboard_smi_ec() != 0); + } +} + +void mainboard_smi_sleep(u8 slp_typ) +{ + /* Disable USB charging if required */ + switch (slp_typ) { + case ACPI_S3: + if (smm_get_gnvs()->s3u0 == 0) + google_chromeec_set_usb_charge_mode( + 0, USB_CHARGE_MODE_DISABLED); + if (smm_get_gnvs()->s3u1 == 0) + google_chromeec_set_usb_charge_mode( + 1, USB_CHARGE_MODE_DISABLED); + + /* Prevent leak from standby rail to WLAN rail in S3. */ + set_gpio(GPIO_WLAN_DISABLE_L, 0); + set_gpio(GPIO_PP3300_CODEC_EN, 0); + /* Disable LTE */ + set_gpio(GPIO_LTE_DISABLE_L, 0); + + /* Enable wake events */ + google_chromeec_set_wake_mask(MAINBOARD_EC_S3_WAKE_EVENTS); + break; + case ACPI_S4: + case ACPI_S5: + if (smm_get_gnvs()->s5u0 == 0) + google_chromeec_set_usb_charge_mode( + 0, USB_CHARGE_MODE_DISABLED); + if (smm_get_gnvs()->s5u1 == 0) + google_chromeec_set_usb_charge_mode( + 1, USB_CHARGE_MODE_DISABLED); + + /* Prevent leak from standby rail to WLAN rail in S5. */ + set_gpio(GPIO_WLAN_DISABLE_L, 0); + set_gpio(GPIO_PP3300_CODEC_EN, 0); + /* Disable LTE */ + set_gpio(GPIO_LTE_DISABLE_L, 0); + + /* Enable wake events */ + google_chromeec_set_wake_mask(MAINBOARD_EC_S5_WAKE_EVENTS); + break; + } + + /* Disable SCI and SMI events */ + google_chromeec_set_smi_mask(0); + google_chromeec_set_sci_mask(0); + + /* Clear pending events that may trigger immediate wake */ + while (google_chromeec_get_event() != 0); +} + + +static int mainboard_finalized = 0; + +int mainboard_smi_apmc(u8 apmc) +{ + switch (apmc) { + case APM_CNT_FINALIZE: + if (mainboard_finalized) { + printk(BIOS_DEBUG, "SMI#: Already finalized\n"); + return 0; + } + + intel_pch_finalize_smm(); + intel_northbridge_haswell_finalize_smm(); + intel_cpu_haswell_finalize_smm(); + + mainboard_finalized = 1; + break; + case APM_CNT_ACPI_ENABLE: + google_chromeec_set_smi_mask(0); + /* Clear all pending events */ + while (google_chromeec_get_event() != 0); + google_chromeec_set_sci_mask(MAINBOARD_EC_SCI_EVENTS); + break; + case APM_CNT_ACPI_DISABLE: + google_chromeec_set_sci_mask(0); + /* Clear all pending events */ + while (google_chromeec_get_event() != 0); + google_chromeec_set_smi_mask(MAINBOARD_EC_SMI_EVENTS); + break; + } + return 0; +} -- cgit v1.2.3