linux-imx

/*

 * ACPI support for Intel Lynxpoint LPSS.

 *

 * Copyright (C) 2013, Intel Corporation

 * Authors: Mika Westerberg <mika.westerberg@linux.intel.com>

 *          Rafael J. Wysocki <rafael.j.wysocki@intel.com>

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License version 2 as

 * published by the Free Software Foundation.

 */

​

#include <linux/acpi.h>

#include <linux/clkdev.h>

#include <linux/clk-provider.h>

#include <linux/err.h>

#include <linux/io.h>

#include <linux/mutex.h>

#include <linux/pci.h>

#include <linux/platform_device.h>

#include <linux/platform_data/x86/clk-lpss.h>

#include <linux/platform_data/x86/pmc_atom.h>

#include <linux/pm_domain.h>

#include <linux/pm_runtime.h>

#include <linux/pwm.h>

#include <linux/suspend.h>

#include <linux/delay.h>

​

#include "internal.h"

​

ACPI_MODULE_NAME("acpi_lpss");

​

#ifdef CONFIG_X86_INTEL_LPSS

​

#include <asm/cpu_device_id.h>

#include <asm/intel-family.h>

#include <asm/iosf_mbi.h>

​

#define LPSS_ADDR(desc) ((unsigned long)&desc)

​

#define LPSS_CLK_SIZE   0x04

#define LPSS_LTR_SIZE   0x18

​

/* Offsets relative to LPSS_PRIVATE_OFFSET */

#define LPSS_CLK_DIVIDER_DEF_MASK   (BIT(1) | BIT(16))

#define LPSS_RESETS         0x04

#define LPSS_RESETS_RESET_FUNC      BIT(0)

#define LPSS_RESETS_RESET_APB       BIT(1)

#define LPSS_GENERAL            0x08

#define LPSS_GENERAL_LTR_MODE_SW    BIT(2)

#define LPSS_GENERAL_UART_RTS_OVRD  BIT(3)

#define LPSS_SW_LTR         0x10

#define LPSS_AUTO_LTR           0x14

#define LPSS_LTR_SNOOP_REQ      BIT(15)

#define LPSS_LTR_SNOOP_MASK     0x0000FFFF

#define LPSS_LTR_SNOOP_LAT_1US      0x800

#define LPSS_LTR_SNOOP_LAT_32US     0xC00

#define LPSS_LTR_SNOOP_LAT_SHIFT    5

#define LPSS_LTR_SNOOP_LAT_CUTOFF   3000

#define LPSS_LTR_MAX_VAL        0x3FF

#define LPSS_TX_INT         0x20

#define LPSS_TX_INT_MASK        BIT(1)

​