cleanup: Remove 'ryu' board

Remove 'ryu' and related ryu-only code.

BUG=None
TEST=`make buildall -j`
BRANCH=None

Change-Id: I19b966ea6964a7ed083724f7de80ae192235a406
Signed-off-by: Shawn Nematbakhsh <shawnn@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/656314
Commit-Ready: Shawn N <shawnn@chromium.org>
Tested-by: Shawn N <shawnn@chromium.org>
Reviewed-by: Vincent Palatin <vpalatin@chromium.org>

2 files changed, 0 insertions, 587 deletions

diff --git a/power/build.mk b/power/build.mk
index eaca94c9ef..5d6db5f065 100644
--- a/power/build.mk
+++ b/power/build.mk
@@ -14,6 +14,5 @@ power-$(CONFIG_CHIPSET_MEDIATEK)+=mediatek.o
 power-$(CONFIG_CHIPSET_RK3399)+=rk3399.o
 power-$(CONFIG_CHIPSET_ROCKCHIP)+=rockchip.o
 power-$(CONFIG_CHIPSET_SKYLAKE)+=skylake.o intel_x86.o
-power-$(CONFIG_CHIPSET_TEGRA)+=tegra.o
 power-$(CONFIG_CHIPSET_STONEY)+=stoney.o
 power-$(CONFIG_POWER_COMMON)+=common.o
diff --git a/power/tegra.c b/power/tegra.c
deleted file mode 100644
index 8f6ba9e4b1..0000000000
--- a/power/tegra.c
+++ /dev/null
@@ -1,586 +0,0 @@
-/* Copyright (c) 2013 The Chromium OS Authors. All rights reserved.
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
-
-/*
- * TEGRA SoC power sequencing module for Chrome EC
- *
- * This implements the following features:
- *
- * - Cold reset powers on the AP
- *
- *  When powered off:
- *  - Press pwron turns on the AP
- *  - Hold pwron turns on the AP, and then 9s later turns it off and leaves
- *    it off until pwron is released and pressed again
- *
- *  When powered on:
- *  - The PMIC PWRON signal is released <= 1 second after the power button is
- *    released
- *  - Holding pwron for 10.2s powers off the AP
- *  - Pressing and releasing pwron within that 10.2s is ignored
- *  - If XPSHOLD is dropped by the AP, then we power the AP off
- *  - If SUSPEND_L goes low, enter suspend mode.
- *
- */
-
-#include "battery.h"
-#include "charge_state.h"
-#include "chipset.h"  /* This module implements chipset functions too */
-#include "clock.h"
-#include "common.h"
-#include "console.h"
-#include "gpio.h"
-#include "hooks.h"
-#include "lid_switch.h"
-#include "keyboard_scan.h"
-#include "power.h"
-#include "power_button.h"
-#include "power_led.h"
-#include "system.h"
-#include "task.h"
-#include "timer.h"
-#include "util.h"
-
-/* Console output macros */
-#define CPUTS(outstr) cputs(CC_CHIPSET, outstr)
-#define CPRINTS(format, args...) cprints(CC_CHIPSET, format, ## args)
-
-/* masks for power signals */
-#define IN_XPSHOLD POWER_SIGNAL_MASK(TEGRA_XPSHOLD)
-#define IN_SUSPEND POWER_SIGNAL_MASK(TEGRA_SUSPEND_ASSERTED)
-
-/* Long power key press to force shutdown */
-#define DELAY_FORCE_SHUTDOWN  (10200 * MSEC)  /* 10.2 seconds */
-
-/*
- * The minimum time to assert the PMIC PWRON pin is 20ms.
- * Give it longer to ensure the PMIC doesn't lose it.
- */
-#define PMIC_PWRON_DEBOUNCE_TIME  (20 * MSEC * 3)
-
-/*
- * The minimum time to assert the PMIC THERM pin is 32us. However,
- * it needs to be extended to about 50ms to let the 5V rail
- * dissipate fully.
- */
-#define PMIC_THERM_HOLD_TIME  (50 * MSEC)
-
-/*
- * If the power key is pressed to turn on, then held for this long, we
- * power off.
- *
- * Normal case: User releases power button and chipset_task() goes
- *    into the inner loop, waiting for next event to occur (power button
- *    press or XPSHOLD == 0).
- */
-#define DELAY_SHUTDOWN_ON_POWER_HOLD	(10200 * MSEC)  /* 10.2 seconds */
-
-/*
- * The hold time for pulling down the PMIC_WARM_RESET_L pin so that
- * the AP can entery the recovery mode (flash SPI flash from USB).
- */
-#define PMIC_WARM_RESET_L_HOLD_TIME (4 * MSEC)
-
-/*
- * The first time the PMIC sees power (AC or battery) it needs 200ms (+/-12%
- * oscillator tolerance) for the RTC startup. In addition there is a startup
- * time of approx. 0.5msec until V2_5 regulator starts up. */
-#define PMIC_RTC_STARTUP (225 * MSEC)
-
-/* TODO(crosbug.com/p/25047): move to HOOK_POWER_BUTTON_CHANGE */
-/* 1 if the power button was pressed last time we checked */
-static char power_button_was_pressed;
-
-/* 1 if lid-open event has been detected */
-static char lid_opened;
-
-/* time where we will power off, if power button still held down */
-static timestamp_t power_off_deadline;
-
-/* force AP power on (used for recovery keypress) */
-static int auto_power_on;
-
-enum power_request_t {
-	POWER_REQ_NONE,
-	POWER_REQ_OFF,
-	POWER_REQ_ON,
-
-	POWER_REQ_COUNT,
-};
-
-static enum power_request_t power_request;
-
-
-/* Forward declaration */
-static void chipset_turn_off_power_rails(void);
-
-
-/**
- * Set the AP RESET signal.
- *
- * This function is for backward-compatibility.
- *
- * AP_RESET_L (PB3) is stuffed before rev <= 2.0 and connected to PMIC RESET.
- * After rev >= 2.2, this is removed. This should not effected the new board.
- *
- * @param asserted  Assert (=1) or deassert (=0) the signal.  This is the
- *                  logical level of the pin, not the physical level.
- */
-static void set_ap_reset(int asserted)
-{
-	/* Signal is active-low */
-	gpio_set_level(GPIO_AP_RESET_L, asserted ? 0 : 1);
-}
-
-/**
- * Set the PMIC PWRON signal.
- *
- * Note that asserting requires holding for PMIC_PWRON_DEBOUNCE_TIME.
- *
- * @param asserted	Assert (=1) or deassert (=0) the signal.  This is the
- *			logical level of the pin, not the physical level.
- */
-static void set_pmic_pwron(int asserted)
-{
-	/* Signal is active-low */
-	gpio_set_level(GPIO_PMIC_PWRON_L, asserted ? 0 : 1);
-}
-
-/**
- * Set the PMIC THERM to force shutdown the AP.
- *
- * @param asserted	Assert (=1) or deassert (=0) the signal.  This is the
- *			logical level of the pin, not the physical level.
- */
-static void set_pmic_therm(int asserted)
-{
-	/* Signal is active-low */
-	gpio_set_level(GPIO_PMIC_THERM_L, asserted ? 0 : 1);
-}
-
-/**
- * Check for some event triggering the shutdown.
- *
- * It can be either a long power button press or a shutdown triggered from the
- * AP and detected by reading XPSHOLD.
- *
- * @return non-zero if a shutdown should happen, 0 if not
- */
-static int check_for_power_off_event(void)
-{
-	timestamp_t now;
-	int pressed = 0;
-
-	/*
-	 * Check for power button press.
-	 */
-	if (power_button_is_pressed()) {
-		pressed = 1;
-	} else if (power_request == POWER_REQ_OFF) {
-		power_request = POWER_REQ_NONE;
-		return 4;  /* return non-zero for shutdown */
-	}
-
-	now = get_time();
-	if (pressed) {
-#ifndef CONFIG_PMIC_FW_LONG_PRESS_TIMER
-		/*
-		 * Only assert PMIC_PWRON if PMIC supports long-press
-		 * power off.
-		 */
-		set_pmic_pwron(1);
-		usleep(PMIC_PWRON_DEBOUNCE_TIME);
-#endif
-
-		if (!power_button_was_pressed) {
-			power_off_deadline.val = now.val + DELAY_FORCE_SHUTDOWN;
-			CPRINTS("power waiting for long press %u",
-				power_off_deadline.le.lo);
-#ifdef CONFIG_PMIC_FW_LONG_PRESS_TIMER
-			/* Ensure we will wake up to check the power key */
-			timer_arm(power_off_deadline, TASK_ID_CHIPSET);
-#endif
-		} else if (timestamp_expired(power_off_deadline, &now)) {
-			power_off_deadline.val = 0;
-			CPRINTS("power off after long press now=%u, %u",
-				now.le.lo, power_off_deadline.le.lo);
-			return 2;
-		}
-	} else if (power_button_was_pressed) {
-		CPRINTS("power off cancel");
-		set_pmic_pwron(0);
-#ifdef CONFIG_PMIC_FW_LONG_PRESS_TIMER
-		timer_cancel(TASK_ID_CHIPSET);
-#endif
-	}
-
-	power_button_was_pressed = pressed;
-
-	/* XPSHOLD released by AP : shutdown immediately */
-	if (!power_has_signals(IN_XPSHOLD))
-		return 3;
-
-	return 0;
-}
-
-#ifndef CONFIG_POWER_IGNORE_LID_OPEN
-static void tegra_lid_event(void)
-{
-	/* Power task only cares about lid-open events */
-	if (!lid_is_open())
-		return;
-
-	lid_opened = 1;
-	task_wake(TASK_ID_CHIPSET);
-}
-DECLARE_HOOK(HOOK_LID_CHANGE, tegra_lid_event, HOOK_PRIO_DEFAULT);
-#endif /* !CONFIG_POWER_IGNORE_LID_OPEN */
-
-enum power_state power_chipset_init(void)
-{
-	int init_power_state;
-	uint32_t reset_flags = system_get_reset_flags();
-
-	/*
-	 * Force the AP shutdown unless we are doing SYSJUMP. Otherwise,
-	 * the AP could stay in strange state.
-	 */
-	if (!(reset_flags & RESET_FLAG_SYSJUMP)) {
-		CPRINTS("not sysjump; forcing AP shutdown");
-		chipset_turn_off_power_rails();
-
-		/*
-		 * The warm reset triggers AP into the Tegra recovery mode (
-		 * flash SPI from USB).
-		 */
-		chipset_reset(0);
-
-		init_power_state = POWER_G3;
-	} else {
-		/* In the SYSJUMP case, we check if the AP is on */
-		if (power_get_signals() & IN_XPSHOLD) {
-			init_power_state = POWER_S0;
-			disable_sleep(SLEEP_MASK_AP_RUN);
-		} else {
-			init_power_state = POWER_G3;
-			enable_sleep(SLEEP_MASK_AP_RUN);
-		}
-	}
-
-	/* Leave power off only if requested by reset flags */
-	if (!(reset_flags & RESET_FLAG_AP_OFF) &&
-	    !(reset_flags & RESET_FLAG_SYSJUMP)) {
-		CPRINTS("auto_power_on set due to reset_flag 0x%x",
-			system_get_reset_flags());
-		auto_power_on = 1;
-	}
-
-	/*
-	 * Some batteries use clock stretching feature, which requires
-	 * more time to be stable. See http://crosbug.com/p/28289
-	 */
-	battery_wait_for_stable();
-
-	return init_power_state;
-}
-
-/*****************************************************************************/
-/* Chipset interface */
-
-static void chipset_turn_off_power_rails(void)
-{
-	/* Release the power button, if it was asserted */
-	set_pmic_pwron(0);
-
-	/* Assert AP reset to shutdown immediately */
-	set_pmic_therm(1);
-	usleep(PMIC_THERM_HOLD_TIME);
-	set_pmic_therm(0);
-
-	/* Hold the reset pin so that the AP stays in off mode (rev <= 2.0) */
-	set_ap_reset(1);
-}
-
-void chipset_force_shutdown(void)
-{
-	chipset_turn_off_power_rails();
-
-	/* clean-up internal variable */
-	power_request = POWER_REQ_NONE;
-}
-
-/*****************************************************************************/
-
-/**
- * Check if there has been a power-on event
- *
- * This checks all power-on event signals and returns non-zero if any have been
- * triggered (with debounce taken into account).
- *
- * @return non-zero if there has been a power-on event, 0 if not.
- */
-static int check_for_power_on_event(void)
-{
-	int ap_off_flag;
-
-	ap_off_flag = system_get_reset_flags() & RESET_FLAG_AP_OFF;
-	system_clear_reset_flags(RESET_FLAG_AP_OFF);
-	/* check if system is already ON */
-	if (power_get_signals() & IN_XPSHOLD) {
-		if (ap_off_flag) {
-			CPRINTS(
-				"system is on, but "
-				"RESET_FLAG_AP_OFF is on");
-			return 0;
-		} else {
-			CPRINTS(
-				"system is on, thus clear "
-				"auto_power_on");
-			/* no need to arrange another power on */
-			auto_power_on = 0;
-			return 1;
-		}
-	}
-
-	/* power on requested at EC startup for recovery */
-	if (auto_power_on) {
-		auto_power_on = 0;
-		return 2;
-	}
-
-	/* Check lid open */
-	if (lid_opened) {
-		lid_opened = 0;
-		return 3;
-	}
-
-	/* check for power button press */
-	if (power_button_is_pressed())
-		return 4;
-
-	if (power_request == POWER_REQ_ON) {
-		power_request = POWER_REQ_NONE;
-		return 5;
-	}
-
-	return 0;
-}
-
-/**
- * Power on the AP
- */
-static void power_on(void)
-{
-	uint64_t t;
-
-	/* Set pull-up and enable interrupt */
-	gpio_set_flags(power_signal_list[TEGRA_SUSPEND_ASSERTED].gpio,
-		       GPIO_INPUT | GPIO_PULL_UP | GPIO_INT_BOTH);
-
-	/* Make sure we de-assert the PMI_THERM_L and AP_RESET_L pin. */
-	set_pmic_therm(0);
-	set_ap_reset(0);
-
-	/*
-	 * Before we push PMIC power button, wait for the PMI RTC ready, which
-	 * takes PMIC_RTC_STARTUP from the AC/battery is plugged in.
-	 */
-	t = get_time().val;
-	if (t < PMIC_RTC_STARTUP) {
-		uint32_t wait = PMIC_RTC_STARTUP - t;
-		CPRINTS("wait for %dms for PMIC RTC start-up",
-			wait / MSEC);
-		usleep(wait);
-	}
-
-	/*
-	 * When power_on() is called, we are at S5S3. Initialize components
-	 * to ready state before AP is up.
-	 */
-	hook_notify(HOOK_CHIPSET_PRE_INIT);
-
-	/* Push the power button */
-	set_pmic_pwron(1);
-	usleep(PMIC_PWRON_DEBOUNCE_TIME);
-
-	disable_sleep(SLEEP_MASK_AP_RUN);
-	powerled_set_state(POWERLED_STATE_ON);
-
-	/* Call hooks now that AP is running */
-	hook_notify(HOOK_CHIPSET_STARTUP);
-
-	CPRINTS("AP running ...");
-}
-
-/**
- * Wait for the power button to be released
- *
- * @param timeout_us Timeout in microseconds, or -1 to wait forever
- * @return EC_SUCCESS if ok, or
- *         EC_ERROR_TIMEOUT if power button failed to release
- */
-static int wait_for_power_button_release(unsigned int timeout_us)
-{
-	timestamp_t deadline;
-	timestamp_t now = get_time();
-
-	deadline.val = now.val + timeout_us;
-
-	while (power_button_is_pressed()) {
-		now = get_time();
-		if (timeout_us < 0) {
-			task_wait_event(-1);
-		} else if (timestamp_expired(deadline, &now) ||
-			(task_wait_event(deadline.val - now.val) ==
-			TASK_EVENT_TIMER)) {
-			CPRINTS("power button not released in time");
-			return EC_ERROR_TIMEOUT;
-		}
-	}
-
-	CPRINTS("power button released");
-	power_button_was_pressed = 0;
-	return EC_SUCCESS;
-}
-
-/**
- * Power off the AP
- */
-static void power_off(void)
-{
-	/* Call hooks before we drop power rails */
-	hook_notify(HOOK_CHIPSET_SHUTDOWN);
-	/* switch off all rails */
-	chipset_turn_off_power_rails();
-
-	/* Change SUSPEND_L pin to high-Z to reduce power draw. */
-	gpio_set_flags(power_signal_list[TEGRA_SUSPEND_ASSERTED].gpio,
-		       GPIO_INPUT);
-
-	lid_opened = 0;
-	powerled_set_state(POWERLED_STATE_OFF);
-	CPRINTS("power shutdown complete");
-}
-
-void chipset_reset(int is_cold)
-{
-	if (is_cold) {
-		CPRINTS("EC triggered cold reboot");
-		power_off();
-		/* After XPSHOLD is dropped off, the system will be on again */
-		power_request = POWER_REQ_ON;
-	} else {
-		CPRINTS("EC triggered warm reboot");
-		CPRINTS("assert GPIO_PMIC_WARM_RESET_L for %d ms",
-				PMIC_WARM_RESET_L_HOLD_TIME / MSEC);
-		gpio_set_level(GPIO_PMIC_WARM_RESET_L, 0);
-		usleep(PMIC_WARM_RESET_L_HOLD_TIME);
-		gpio_set_level(GPIO_PMIC_WARM_RESET_L, 1);
-	}
-}
-
-enum power_state power_handle_state(enum power_state state)
-{
-	int value;
-	static int boot_from_g3;
-
-	switch (state) {
-	case POWER_G3:
-		boot_from_g3 = check_for_power_on_event();
-		if (boot_from_g3)
-			return POWER_G3S5;
-		break;
-
-	case POWER_G3S5:
-		return POWER_S5;
-
-	case POWER_S5:
-		if (boot_from_g3) {
-			value = boot_from_g3;
-			boot_from_g3 = 0;
-		} else {
-			value = check_for_power_on_event();
-		}
-
-		if (value) {
-			CPRINTS("power on %d", value);
-			return POWER_S5S3;
-		}
-		return state;
-
-	case POWER_S5S3:
-		power_on();
-		if (power_wait_signals(IN_XPSHOLD) == EC_SUCCESS) {
-			CPRINTS("XPSHOLD seen");
-			if (wait_for_power_button_release(
-					DELAY_SHUTDOWN_ON_POWER_HOLD) ==
-					EC_SUCCESS) {
-				set_pmic_pwron(0);
-				return POWER_S3;
-			} else {
-				CPRINTS("long-press button, shutdown");
-				power_off();
-				/*
-				 * Since the AP may be up already, return S0S3
-				 * state to go through the suspend hook.
-				 */
-				return POWER_S0S3;
-			}
-		} else {
-			CPRINTS("XPSHOLD not seen in time");
-		}
-		set_pmic_pwron(0);
-		return POWER_S5;
-
-	case POWER_S3:
-		if (!(power_get_signals() & IN_XPSHOLD))
-			return POWER_S3S5;
-		else if (!(power_get_signals() & IN_SUSPEND))
-			return POWER_S3S0;
-		return state;
-
-	case POWER_S3S0:
-		disable_sleep(SLEEP_MASK_AP_RUN);
-		powerled_set_state(POWERLED_STATE_ON);
-		hook_notify(HOOK_CHIPSET_RESUME);
-		return POWER_S0;
-
-	case POWER_S0:
-		value = check_for_power_off_event();
-		if (value) {
-			CPRINTS("power off %d", value);
-			power_off();
-			return POWER_S0S3;
-		} else if (power_get_signals() & IN_SUSPEND)
-			return POWER_S0S3;
-		return state;
-
-	case POWER_S0S3:
-		if (lid_is_open())
-			powerled_set_state(POWERLED_STATE_SUSPEND);
-		else
-			powerled_set_state(POWERLED_STATE_OFF);
-		/* Call hooks here since we don't know it prior to AP suspend */
-		hook_notify(HOOK_CHIPSET_SUSPEND);
-		enable_sleep(SLEEP_MASK_AP_RUN);
-		return POWER_S3;
-
-	case POWER_S3S5:
-		wait_for_power_button_release(-1);
-		return POWER_S5;
-
-	case POWER_S5G3:
-		return POWER_G3;
-	}
-
-	return state;
-}
-
-static void powerbtn_tegra_changed(void)
-{
-	task_wake(TASK_ID_CHIPSET);
-}
-DECLARE_HOOK(HOOK_POWER_BUTTON_CHANGE, powerbtn_tegra_changed,
-		HOOK_PRIO_DEFAULT);