// SPDX-License-Identifier: GPL-2.0-or-later
/*
* arch/arm/mach-at91/pm.c
* AT91 Power Management
*
* Copyright (C) 2005 David Brownell
*/
#include <linux/genalloc.h>
#include <linux/io.h>
#include <linux/of_address.h>
#include <linux/of.h>
#include <linux/of_fdt.h>
#include <linux/of_platform.h>
#include <linux/platform_device.h>
#include <linux/parser.h>
#include <linux/suspend.h>
#include <linux/clk.h>
#include <linux/clk/at91_pmc.h>
#include <linux/platform_data/atmel.h>
#include <asm/cacheflush.h>
#include <asm/fncpy.h>
#include <asm/system_misc.h>
#include <asm/suspend.h>
#include "generic.h"
#include "pm.h"
#include "sam_secure.h"
#define BACKUP_DDR_PHY_CALIBRATION (9)
/**
* struct at91_pm_bu - AT91 power management backup unit data structure
* @suspended: true if suspended to backup mode
* @reserved: reserved
* @canary: canary data for memory checking after exit from backup mode
* @resume: resume API
* @ddr_phy_calibration: DDR PHY calibration data: ZQ0CR0, first 8 words
* of the memory
*/
struct at91_pm_bu {
int suspended;
unsigned long reserved;
phys_addr_t canary;
phys_addr_t resume;
unsigned long ddr_phy_calibration[BACKUP_DDR_PHY_CALIBRATION];
};
/**
* struct at91_pm_sfrbu_regs - registers mapping for SFRBU
* @pswbu: power switch BU control registers
*/
struct at91_pm_sfrbu_regs {
struct {
u32 key;
u32 ctrl;
u32 state;
u32 softsw;
} pswbu;
};
/**
* enum at91_pm_eth_clk - Ethernet clock indexes
* @AT91_PM_ETH_PCLK: pclk index
* @AT91_PM_ETH_HCLK: hclk index
* @AT91_PM_ETH_MAX_CLK: max index
*/
enum at91_pm_eth_clk {
AT91_PM_ETH_PCLK,
AT91_PM_ETH_HCLK,
AT91_PM_ETH_MAX_CLK,
};
/**
* enum at91_pm_eth - Ethernet controller indexes
* @AT91_PM_G_ETH: gigabit Ethernet controller index
* @AT91_PM_E_ETH: megabit Ethernet controller index
* @AT91_PM_MAX_ETH: max index
*/
enum at91_pm_eth {
AT91_PM_G_ETH,
AT91_PM_E_ETH,
AT91_PM_MAX_ETH,
};
/**
* struct at91_pm_quirk_eth - AT91 PM Ethernet quirks
* @dev: Ethernet device
* @np: Ethernet device node
* @clks: Ethernet clocks
* @modes: power management mode that this quirk applies to
* @dns_modes: do not suspend modes: stop suspending if Ethernet is configured
* as wakeup source but buggy and no other wakeup source is
* available
*/
struct at91_pm_quirk_eth {
struct device *dev;
struct device_node *np;
struct clk_bulk_data clks[AT91_PM_ETH_MAX_CLK];
u32 modes;
u32 dns_modes;
};
/**
* struct at91_pm_quirks - AT91 PM quirks
* @eth: Ethernet quirks
*/
struct at91_pm_quirks {
struct at91_pm_quirk_eth eth[AT91_PM_MAX_ETH];
};
/**
* struct at91_soc_pm - AT91 SoC power management data
| 