diff options
author | Randall Spangler <rspangler@chromium.org> | 2015-06-09 11:15:06 -0700 |
---|---|---|
committer | ChromeOS Commit Bot <chromeos-commit-bot@chromium.org> | 2015-06-10 18:24:05 +0000 |
commit | fe9e3bf56532b33a9d99b9372b53905dece5907b (patch) | |
tree | 6bffb4bdd8ad8bac679e44d021eaf21bcb557fbd /power | |
parent | 4e5b020ca917e99c1e68523e4c5aec518b7d9510 (diff) | |
download | chrome-ec-fe9e3bf56532b33a9d99b9372b53905dece5907b.tar.gz |
Remove obsolete board-specific code
Now that we've removed boards from ToT, also delete board-specific
code used only by the removed boards.
There are still more things to remove (unused charging chips, LED
drivers, COMx support). More CLs coming.
BUG=chromium:493866
BRANCH=none
TEST=make buildall -j
Change-Id: Ie6bdeaf96e61cadd77e3f6336c73b9b54ff4eabb
Signed-off-by: Randall Spangler <rspangler@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/276524
Reviewed-by: Alec Berg <alecaberg@chromium.org>
Diffstat (limited to 'power')
-rw-r--r-- | power/build.mk | 1 | ||||
-rw-r--r-- | power/ivybridge.c | 347 |
2 files changed, 0 insertions, 348 deletions
diff --git a/power/build.mk b/power/build.mk index 52ac0ab3e7..90ffe342d5 100644 --- a/power/build.mk +++ b/power/build.mk @@ -11,7 +11,6 @@ power-$(CONFIG_CHIPSET_BRASWELL)+=braswell.o power-$(CONFIG_CHIPSET_ECDRIVEN)+=ec_driven.o power-$(CONFIG_CHIPSET_GAIA)+=gaia.o power-$(CONFIG_CHIPSET_HASWELL)+=haswell.o -power-$(CONFIG_CHIPSET_IVYBRIDGE)+=ivybridge.o power-$(CONFIG_CHIPSET_MEDIATEK)+=mediatek.o power-$(CONFIG_CHIPSET_ROCKCHIP)+=rockchip.o power-$(CONFIG_CHIPSET_SKYLAKE)+=skylake.o diff --git a/power/ivybridge.c b/power/ivybridge.c deleted file mode 100644 index 163afb330b..0000000000 --- a/power/ivybridge.c +++ /dev/null @@ -1,347 +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. - */ - -/* X86 ivybridge chipset power control module for Chrome EC */ - -#include "chipset.h" -#include "common.h" -#include "console.h" -#include "gpio.h" -#include "hooks.h" -#include "lid_switch.h" -#include "power.h" -#include "system.h" -#include "timer.h" -#include "util.h" -#include "wireless.h" - -/* Console output macros */ -#define CPUTS(outstr) cputs(CC_CHIPSET, outstr) -#define CPRINTS(format, args...) cprints(CC_CHIPSET, format, ## args) - -/* Input state flags */ -#define IN_PGOOD_5VALW POWER_SIGNAL_MASK(X86_PGOOD_5VALW) -#define IN_PGOOD_1_5V_DDR POWER_SIGNAL_MASK(X86_PGOOD_1_5V_DDR) -#define IN_PGOOD_1_5V_PCH POWER_SIGNAL_MASK(X86_PGOOD_1_5V_PCH) -#define IN_PGOOD_1_8VS POWER_SIGNAL_MASK(X86_PGOOD_1_8VS) -#define IN_PGOOD_VCCP POWER_SIGNAL_MASK(X86_PGOOD_VCCP) -#define IN_PGOOD_VCCSA POWER_SIGNAL_MASK(X86_PGOOD_VCCSA) -#define IN_PGOOD_CPU_CORE POWER_SIGNAL_MASK(X86_PGOOD_CPU_CORE) -#define IN_PGOOD_VGFX_CORE POWER_SIGNAL_MASK(X86_PGOOD_VGFX_CORE) -#define IN_SLP_S3_DEASSERTED POWER_SIGNAL_MASK(X86_SLP_S3_DEASSERTED) -#define IN_SLP_S4_DEASSERTED POWER_SIGNAL_MASK(X86_SLP_S4_DEASSERTED) -#define IN_SLP_S5_DEASSERTED POWER_SIGNAL_MASK(X86_SLP_S5_DEASSERTED) -#define IN_SLP_A_DEASSERTED POWER_SIGNAL_MASK(X86_SLP_A_DEASSERTED) -#define IN_SLP_SUS_DEASSERTED POWER_SIGNAL_MASK(X86_SLP_SUS_DEASSERTED) -#define IN_SLP_ME_DEASSERTED POWER_SIGNAL_MASK(X86_SLP_ME_DEASSERTED) - -/* All always-on supplies */ -#define IN_PGOOD_ALWAYS_ON (IN_PGOOD_5VALW) -/* All non-core power rails */ -#define IN_PGOOD_ALL_NONCORE (IN_PGOOD_1_5V_DDR | IN_PGOOD_1_5V_PCH | \ - IN_PGOOD_1_8VS | IN_PGOOD_VCCP | IN_PGOOD_VCCSA) -/* All core power rails */ -#define IN_PGOOD_ALL_CORE (IN_PGOOD_CPU_CORE | IN_PGOOD_VGFX_CORE) -/* Rails required for S3 */ -#define IN_PGOOD_S3 (IN_PGOOD_ALWAYS_ON | IN_PGOOD_1_5V_DDR) -/* Rails required for S0 */ -#define IN_PGOOD_S0 (IN_PGOOD_ALWAYS_ON | IN_PGOOD_ALL_NONCORE) - -/* All PM_SLP signals from PCH deasserted */ -#define IN_ALL_PM_SLP_DEASSERTED (IN_SLP_S3_DEASSERTED | \ - IN_SLP_S4_DEASSERTED | \ - IN_SLP_S5_DEASSERTED | \ - IN_SLP_A_DEASSERTED) -/* All inputs in the right state for S0 */ -#define IN_ALL_S0 (IN_PGOOD_ALWAYS_ON | IN_PGOOD_ALL_NONCORE | \ - IN_PGOOD_CPU_CORE | IN_ALL_PM_SLP_DEASSERTED) - -static int throttle_cpu; /* Throttle CPU? */ - -void chipset_force_shutdown(void) -{ - CPRINTS("chipset force shutdown"); - - /* - * Force power off. This condition will reset once the state machine - * transitions to G3. - */ - gpio_set_level(GPIO_PCH_DPWROK, 0); - gpio_set_level(GPIO_PCH_RSMRST_L, 0); -} - -void chipset_reset(int cold_reset) -{ - if (cold_reset) { - /* - * Drop and restore PWROK. This causes the PCH to reboot, - * regardless of its after-G3 setting. This type of reboot - * causes the PCH to assert PLTRST#, SLP_S3#, and SLP_S5#, so - * we actually drop power to the rest of the system (hence, a - * "cold" reboot). - */ - - /* Ignore if PWROK is already low */ - if (gpio_get_level(GPIO_PCH_PWROK) == 0) - return; - - /* PWROK must deassert for at least 3 RTC clocks = 91 us */ - gpio_set_level(GPIO_PCH_PWROK, 0); - udelay(100); - gpio_set_level(GPIO_PCH_PWROK, 1); - - } else { - /* - * Send a RCIN# pulse to the PCH. This just causes it to - * assert INIT# to the CPU without dropping power or asserting - * PLTRST# to reset the rest of the system. - */ - - /* Pulse must be at least 16 PCI clocks long = 500 ns */ - gpio_set_level(GPIO_PCH_RCIN_L, 0); - udelay(10); - gpio_set_level(GPIO_PCH_RCIN_L, 1); - } -} - -void chipset_throttle_cpu(int throttle) -{ - throttle_cpu = throttle; - - /* Immediately set throttling if CPU is on */ - if (chipset_in_state(CHIPSET_STATE_ON)) - gpio_set_level(GPIO_CPU_PROCHOT, throttle); -} - -enum power_state power_chipset_init(void) -{ - /* - * If we're switching between images without rebooting, see if the x86 - * is already powered on; if so, leave it there instead of cycling - * through G3. - */ - if (system_jumped_to_this_image()) { - if ((power_get_signals() & IN_ALL_S0) == IN_ALL_S0) { - CPRINTS("already in S0"); - return POWER_S0; - } else { - /* Force all signals to their G3 states */ - CPRINTS("forcing G3"); - gpio_set_level(GPIO_PCH_PWROK, 0); - gpio_set_level(GPIO_ENABLE_VCORE, 0); - gpio_set_level(GPIO_ENABLE_VS, 0); - gpio_set_level(GPIO_ENABLE_TOUCHPAD, 0); - gpio_set_level(GPIO_TOUCHSCREEN_RESET_L, 0); - gpio_set_level(GPIO_ENABLE_1_5V_DDR, 0); - gpio_set_level(GPIO_PCH_RSMRST_L, 0); - gpio_set_level(GPIO_PCH_DPWROK, 0); - } - } - - return POWER_G3; -} - -enum power_state power_handle_state(enum power_state state) -{ - switch (state) { - case POWER_G3: - break; - - case POWER_S5: - if (gpio_get_level(GPIO_PCH_SLP_S5_L) == 1) { - /* Power up to next state */ - return POWER_S5S3; - } - break; - - case POWER_S3: - /* - * If lid is closed; hold touchscreen in reset to cut power - * usage. If lid is open, take touchscreen out of reset so it - * can wake the processor. - */ - gpio_set_level(GPIO_TOUCHSCREEN_RESET_L, lid_is_open()); - - /* Check for state transitions */ - if (!power_has_signals(IN_PGOOD_S3)) { - /* Required rail went away */ - chipset_force_shutdown(); - return POWER_S3S5; - } else if (gpio_get_level(GPIO_PCH_SLP_S3_L) == 1) { - /* Power up to next state */ - return POWER_S3S0; - } else if (gpio_get_level(GPIO_PCH_SLP_S5_L) == 0) { - /* Power down to next state */ - return POWER_S3S5; - } - break; - - case POWER_S0: - if (!power_has_signals(IN_PGOOD_S0)) { - /* Required rail went away */ - chipset_force_shutdown(); - return POWER_S0S3; - } else if (gpio_get_level(GPIO_PCH_SLP_S3_L) == 0) { - /* Power down to next state */ - return POWER_S0S3; - } - break; - - case POWER_G3S5: - /* - * Wait 10ms after +3VALW good, since that powers VccDSW and - * VccSUS. - */ - msleep(10); - - /* Assert DPWROK, deassert RSMRST# */ - gpio_set_level(GPIO_PCH_DPWROK, 1); - gpio_set_level(GPIO_PCH_RSMRST_L, 1); - - /* Wait 5ms for SUSCLK to stabilize */ - msleep(5); - return POWER_S5; - - case POWER_S5S3: - /* Wait for the always-on rails to be good */ - if (power_wait_signals(IN_PGOOD_ALWAYS_ON)) { - chipset_force_shutdown(); - return POWER_S5; - } - - /* - * Take lightbar out of reset, now that +5VALW is available and - * we won't leak +3VALW through the reset line. - */ - gpio_set_level(GPIO_LIGHTBAR_RESET_L, 1); - - /* Turn on power to RAM */ - gpio_set_level(GPIO_ENABLE_1_5V_DDR, 1); - if (power_wait_signals(IN_PGOOD_S3)) { - chipset_force_shutdown(); - return POWER_S5; - } - - /* - * Enable touchpad power so it can wake the system from - * suspend. - */ - gpio_set_level(GPIO_ENABLE_TOUCHPAD, 1); - - /* Call hooks now that rails are up */ - hook_notify(HOOK_CHIPSET_STARTUP); - return POWER_S3; - - case POWER_S3S0: - /* Turn on power rails */ - gpio_set_level(GPIO_ENABLE_VS, 1); - - /* Enable wireless */ - wireless_set_state(WIRELESS_ON); - - /* - * Make sure touchscreen is out if reset (even if the lid is - * still closed); it may have been turned off if the lid was - * closed in S3. - */ - gpio_set_level(GPIO_TOUCHSCREEN_RESET_L, 1); - - /* Wait for non-core power rails good */ - if (power_wait_signals(IN_PGOOD_S0)) { - chipset_force_shutdown(); - gpio_set_level(GPIO_TOUCHSCREEN_RESET_L, 0); - wireless_set_state(WIRELESS_OFF); - gpio_set_level(GPIO_ENABLE_VS, 0); - return POWER_S3; - } - - /* - * Enable +CPU_CORE and +VGFX_CORE regulator. The CPU itself - * will request the supplies when it's ready. - */ - gpio_set_level(GPIO_ENABLE_VCORE, 1); - - /* Call hooks now that rails are up */ - hook_notify(HOOK_CHIPSET_RESUME); - - /* Wait 99ms after all voltages good */ - msleep(99); - - /* - * Throttle CPU if necessary. This should only be asserted - * when +VCCP is powered (it is by now). - */ - gpio_set_level(GPIO_CPU_PROCHOT, throttle_cpu); - - /* Set PCH_PWROK */ - gpio_set_level(GPIO_PCH_PWROK, 1); - return POWER_S0; - - case POWER_S0S3: - /* Call hooks before we remove power rails */ - hook_notify(HOOK_CHIPSET_SUSPEND); - - /* Clear PCH_PWROK */ - gpio_set_level(GPIO_PCH_PWROK, 0); - - /* Wait 40ns */ - udelay(1); - - /* Disable +CPU_CORE and +VGFX_CORE */ - gpio_set_level(GPIO_ENABLE_VCORE, 0); - - /* Suspend wireless */ - wireless_set_state(WIRELESS_SUSPEND); - - /* - * Deassert prochot since CPU is off and we're about to drop - * +VCCP. - */ - gpio_set_level(GPIO_CPU_PROCHOT, 0); - - /* Turn off power rails */ - gpio_set_level(GPIO_ENABLE_VS, 0); - return POWER_S3; - - case POWER_S3S5: - /* Call hooks before we remove power rails */ - hook_notify(HOOK_CHIPSET_SHUTDOWN); - - /* Disable wireless */ - wireless_set_state(WIRELESS_OFF); - - /* Disable touchpad power */ - gpio_set_level(GPIO_ENABLE_TOUCHPAD, 0); - - /* Turn off power to RAM */ - gpio_set_level(GPIO_ENABLE_1_5V_DDR, 0); - - /* - * Put touchscreen and lightbar in reset, so we won't leak - * +3VALW through the reset line to chips powered by +5VALW. - * - * (Note that we're no longer powering down +5VALW due to - * crosbug.com/p/16600, but to minimize side effects of that - * change we'll still reset these components in S5.) - */ - gpio_set_level(GPIO_TOUCHSCREEN_RESET_L, 0); - gpio_set_level(GPIO_LIGHTBAR_RESET_L, 0); - return POWER_S5; - - case POWER_S5G3: - /* Deassert DPWROK, assert RSMRST# */ - gpio_set_level(GPIO_PCH_DPWROK, 0); - gpio_set_level(GPIO_PCH_RSMRST_L, 0); - return POWER_G3; - } - - return state; -} - -void power_interrupt(enum gpio_signal signal) -{ - /* Route SUSWARN# back to SUSACK# */ - gpio_set_level(GPIO_PCH_SUSACK_L, gpio_get_level(GPIO_PCH_SUSWARN_L)); -} |