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29c2aa3294
Add a new module ID 'MODULE_FAST_CPU'. When it is enabled with clock_enable_module(MODULE_FAST_CPU, 1), switch the system clocking to the fast 400-Mhz PLL. For now, I consider that a single task/user is calling clock_enable_module(MODULE_FAST_CPU, x), so we don't need to count users (in a complicated atomic fashion). It's good enough for the current use-case and we can add the complexity later if we have a real need. BRANCH=none BUG=b:67081508 TEST=on ZerbleBarn, with follow-up CL setting clock_enable_module(MODULE_FAST_CPU,x) around the computation block, see that computations are fast and the clock goes back to HSI after. Change-Id: I2aef3ad673ddbffd6fc64c591c54297e94896fa6 Signed-off-by: Vincent Palatin <vpalatin@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/945688 Reviewed-by: Randall Spangler <rspangler@chromium.org> Reviewed-by: Nicolas Boichat <drinkcat@chromium.org>
62 lines
1.0 KiB
C
62 lines
1.0 KiB
C
/* Copyright (c) 2013 The Chromium OS Authors. All rights reserved.
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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/* Module IDs for Chrome EC */
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#ifndef __CROS_EC_MODULE_ID_H
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#define __CROS_EC_MODULE_ID_H
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#include "common.h"
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enum module_id {
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MODULE_ADC,
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MODULE_CHARGER,
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MODULE_CHIPSET,
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MODULE_CLOCK,
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MODULE_COMMAND,
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MODULE_DMA,
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MODULE_EXTPOWER,
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MODULE_FAST_CPU,
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MODULE_GPIO,
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MODULE_HOOK,
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MODULE_HOST_COMMAND,
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MODULE_HOST_EVENT,
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MODULE_I2C,
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MODULE_KEYBOARD,
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MODULE_KEYBOARD_SCAN,
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MODULE_LIGHTBAR,
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MODULE_LPC,
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MODULE_MCO,
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MODULE_PECI,
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MODULE_PMU,
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MODULE_PORT80,
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MODULE_POWER_LED,
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MODULE_PWM,
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MODULE_RDD,
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MODULE_RBOX,
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MODULE_SPI,
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MODULE_SPI_FLASH,
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MODULE_SPI_MASTER,
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MODULE_SWITCH,
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MODULE_SYSTEM,
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MODULE_TASK,
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MODULE_TFDP,
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MODULE_THERMAL,
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MODULE_UART,
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MODULE_USART,
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MODULE_USB,
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MODULE_USB_DEBUG,
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MODULE_USB_PD,
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MODULE_USB_PORT_POWER,
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MODULE_USB_SWITCH,
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MODULE_VBOOT,
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MODULE_WOV,
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/* Module count; not an actual module */
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MODULE_COUNT
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};
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#endif
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