/* SPDX-License-Identifier: (GPL-2.0+ OR MIT) */
/*
 * Copyright (c) 2019 Amlogic, Inc. All rights reserved.
 */

#ifndef __ARCH_ARM_MESON_USB_H_U_BOOT__
#define __ARCH_ARM_MESON_USB_H_U_BOOT__

#include <common.h>
#include <asm/types.h>
#include <asm/arch/io.h>
#include <asm/arch/secure_apb.h>
#include <generic-phy.h>
#include <asm-generic/gpio.h>

#define HOST_MODE	0
#define DEVICE_MODE	1

#define USB_PHY_PORT_MAX	1
/* Phy register MACRO definitions */

#define LINKSYSTEM_FLADJ_MASK			(0x3f << 1)
#define LINKSYSTEM_FLADJ(_x)			((_x) << 1)
#define LINKSYSTEM_XHCI_VERSION_CONTROL		(0x1 << 27)

#define PHYUTMI_OTGDISABLE			(1 << 6)
#define PHYUTMI_FORCESUSPEND			(1 << 1)
#define PHYUTMI_FORCESLEEP			(1 << 0)

#define PHYCLKRST_SSC_REFCLKSEL_MASK		(0xff << 23)
#define PHYCLKRST_SSC_REFCLKSEL(_x)		((_x) << 23)

#define PHYCLKRST_SSC_RANGE_MASK		(0x03 << 21)
#define PHYCLKRST_SSC_RANGE(_x)			((_x) << 21)

#define PHYCLKRST_SSC_EN			(0x1 << 20)
#define PHYCLKRST_REF_SSP_EN			(0x1 << 19)
#define PHYCLKRST_REF_CLKDIV2			(0x1 << 18)

#define PHYCLKRST_MPLL_MULTIPLIER_MASK		(0x7f << 11)
#define PHYCLKRST_MPLL_MULTIPLIER_100MHZ_REF	(0x19 << 11)
#define PHYCLKRST_MPLL_MULTIPLIER_50M_REF	(0x02 << 11)
#define PHYCLKRST_MPLL_MULTIPLIER_24MHZ_REF	(0x68 << 11)
#define PHYCLKRST_MPLL_MULTIPLIER_20MHZ_REF	(0x7d << 11)
#define PHYCLKRST_MPLL_MULTIPLIER_19200KHZ_REF	(0x02 << 11)

#define PHYCLKRST_FSEL_MASK			(0x3f << 5)
#define PHYCLKRST_FSEL(_x)			((_x) << 5)
#define PHYCLKRST_FSEL_PAD_100MHZ		(0x27 << 5)
#define PHYCLKRST_FSEL_PAD_24MHZ		(0x2a << 5)
#define PHYCLKRST_FSEL_PAD_20MHZ		(0x31 << 5)
#define PHYCLKRST_FSEL_PAD_19_2MHZ		(0x38 << 5)

#define PHYCLKRST_RETENABLEN			(0x1 << 4)

#define PHYCLKRST_REFCLKSEL_MASK		(0x03 << 2)
#define PHYCLKRST_REFCLKSEL_PAD_REFCLK		(0x2 << 2)
#define PHYCLKRST_REFCLKSEL_EXT_REFCLK		(0x3 << 2)

#define PHYCLKRST_PORTRESET			(0x1 << 1)
#define PHYCLKRST_COMMONONN			(0x1 << 0)

#define PHYPARAM0_REF_USE_PAD			(0x1 << 31)
#define PHYPARAM0_REF_LOSLEVEL_MASK		(0x1f << 26)
#define PHYPARAM0_REF_LOSLEVEL			(0x9 << 26)

#define PHYPARAM1_PCS_TXDEEMPH_MASK		(0x1f << 0)
#define PHYPARAM1_PCS_TXDEEMPH			(0x1c)

#define PHYTEST_POWERDOWN_SSP			(0x1 << 3)
#define PHYTEST_POWERDOWN_HSP			(0x1 << 2)

#define PHYBATCHG_UTMI_CLKSEL			(0x1 << 2)

#define FSEL_CLKSEL_24M				(0x5)

#define USB_PHY2_ENABLE			(0x1 << 1)
#define USB_PHY2_RESET			(0x1 << 0)
#define USBPLL_LK_OD_EN			(0x1 << 16)
#define USBPLL_LOCKFLAG_BIT      (31)


/* XHCI PHY register structure */
#define PHY_REGISTER_SIZE	0x20

struct phy_aml_usb2_priv {
	unsigned int base_addr;
	unsigned int reset_addr;
	unsigned int dwc2_a_addr;
	unsigned int u2_port_num;
	unsigned int usbphy_reset_bit[8];
	unsigned int clktree_usb_bus_ctrl_addr;
	unsigned int usb_phy2_pll_base_addr[4];
};

struct phy_aml_usb3_priv {
	unsigned int base_addr;
	unsigned int usb3_port_num;
	struct gpio_desc desc;
};

/* Register definitions */
typedef struct u2p_aml_regs {
	volatile uint32_t u2p_r0;
	volatile uint32_t u2p_r1;
} u2p_aml_regs_t;

typedef union u2p_r0 {
	/** raw register data */
	uint32_t d32;
	/** register bits */
	struct {
		unsigned host_device:1;
		unsigned power_ok:1;
		unsigned hast_mode:1;
		unsigned POR:1;
		unsigned IDPULLUP0:1;
		unsigned DRVVBUS0:1;
		unsigned reserved:26;
    } b;
} u2p_r0_t;

typedef union u2p_r1 {
	/** raw register data */
	uint32_t d32;
	/** register bits */
	struct {
		unsigned phy_rdy:1;
		unsigned IDDIG0:1;
		unsigned OTGSESSVLD0:1;
		unsigned VBUSVALID0:1;
		unsigned reserved:28;
	} b;
} u2p_r1_t;


typedef struct usb_aml_regs {
	volatile uint32_t usb_r0;
	volatile uint32_t usb_r1;
	volatile uint32_t usb_r2;
	volatile uint32_t usb_r3;
	volatile uint32_t usb_r4;
	volatile uint32_t usb_r5;
} usb_aml_regs_t;

typedef union usb_r0 {
	/** raw register data */
	uint32_t d32;
	/** register bits */
	struct {
		unsigned reserved:17;
		unsigned p30_lane0_tx2rx_loopback:1;
		unsigned p30_lane0_ext_pclk_reg:1;
		unsigned p30_pcs_rx_los_mask_val:10;
		unsigned u2d_ss_scaledown_mode:2;
		unsigned u2d_act:1;
    } b;
} usb_r0_t;

typedef union usb_r1 {
	/** raw register data */
	uint32_t d32;
	/** register bits */
	struct {
		unsigned u3h_bigendian_gs:1;
		unsigned u3h_pme_en:1;
		unsigned u3h_hub_port_overcurrent:3;
		unsigned reserved_1:2;
		unsigned u3h_hub_port_perm_attach:3;
		unsigned reserved_2:2;
		unsigned u3h_host_u2_port_disable:2;
		unsigned reserved_3:2;
		unsigned u3h_host_u3_port_disable:1;
		unsigned u3h_host_port_power_control_present:1;
		unsigned u3h_host_msi_enable:1;
		unsigned u3h_fladj_30mhz_reg:6;
		unsigned p30_pcs_tx_swing_full:7;
	} b;
} usb_r1_t;

typedef union usb_r2 {
	/** raw register data */
	uint32_t d32;
	/** register bits */
	struct {
		unsigned reserved:20;
		unsigned p30_pcs_tx_deemph_3p5db:6;
		unsigned p30_pcs_tx_deemph_6db:6;
	} b;
} usb_r2_t;

typedef union usb_r3 {
	/** raw register data */
	uint32_t d32;
	/** register bits */
	struct {
		unsigned p30_ssc_en:1;
		unsigned p30_ssc_range:3;
		unsigned p30_ssc_ref_clk_sel:9;
		unsigned p30_ref_ssp_en:1;
		unsigned reserved:18;
	} b;
} usb_r3_t;

typedef union usb_r4 {
	/** raw register data */
	uint32_t d32;
	/** register bits */
	struct {
		unsigned p21_PORTRESET0:1;
		unsigned p21_SLEEPM0:1;
		unsigned mem_pd:2;
		unsigned p21_only:1;
		unsigned reserved:27;
	} b;
} usb_r4_t;

typedef union usb_r5 {
	/** raw register data */
	uint32_t d32;
	/** register bits */
	struct {
		unsigned iddig_sync:1;
		unsigned iddig_reg:1;
		unsigned iddig_cfg:2;
		unsigned iddig_en0:1;
		unsigned iddig_en1:1;
		unsigned iddig_curr:1;
		unsigned usb_iddig_irq:1;
		unsigned iddig_th:8;
		unsigned iddig_cnt:8;
		unsigned reserved:8;
    } b;
} usb_r5_t;

/* usb id mode, only after M2
	 mode = 0 : HARDWARE
	 mode = 1 : SW_HOST
	 mode = 2 : SW_DEVICE
 */
#define USB_ID_MODE_HARDWARE    (1)
#define USB_ID_MODE_SW_HOST     (2)
#define USB_ID_MODE_SW_DEVICE   (3)
int usb2_phy_tuning(uint32_t phy2_pll_base, int port);
void set_usb_pll(uint32_t phy2_pll_base);
int usb_save_phy_dev (unsigned int number, struct phy *phy);
int usb2_phy_init (struct phy *phy);
unsigned int usb_get_dwc_a_base_addr(void);
unsigned int usb_get_device_mode_phy_base(void);
void usb_phy_tuning_reset(void);
void usb_device_mode_init(void);

#endif