/* SPDX-License-Identifier: (GPL-2.0+ OR MIT) */
/*
 * arch/arm/include/asm/arch-gxl/usb.h
 *
 * Copyright (C) 2020 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>
/*
#define USB_PHY_PORT_A	    (0x40000)
#define USB_PHY_PORT_B	    (0xc0000)
#define USB_PHY_PORT_C	    (0x100000)
#define USB_PHY_PORT_D	    (0x140000)
#define USB_PHY_PORT_MSK	(0x1f0000) */

#define USB_PHY_PORT_A		0x000000
#define USB_PHY_PORT_B		0x100000
#define USB_PHY_PORT_C		0x200000
#define USB_PHY_PORT_D		0x300000
#define USB_PHY_PORT_MSK	0x300000
#define USB_PHY_PORT_MAX	2

#define PREI_USB_PHY_REG_A     0xc0000000
#define PREI_USB_PHY_REG_B     0xc0000020
//#define PREI_USB_PHY_REG_C     0x2210
//#define PREI_USB_PHY_REG_D     0x2218
typedef struct usb_peri_reg {
	volatile uint32_t config;
	volatile uint32_t ctrl;
	volatile uint32_t endp_intr;
	volatile uint32_t adp_bc;
	volatile uint32_t dbg_uart;
	volatile uint32_t test;
	volatile uint32_t tune;
	volatile uint32_t reserved;
} usb_peri_reg_t;

typedef union usb_config_data {
    /** raw register data */
    uint32_t d32;
    /** register bits */
    struct {
        unsigned clk_en:1;
        unsigned clk_sel:3;
        unsigned clk_div:7;
        unsigned reserved0:4;
        unsigned clk_32k_alt_sel:1;
        unsigned reserved1:15;
        unsigned test_trig:1;
    } b;
} usb_config_data_t;

typedef union usb_ctrl_data {
    /** raw register data */
    uint32_t d32;
    /** register bits */
    struct {
        unsigned soft_prst:1;
        unsigned soft_hreset:1;
        unsigned ss_scaledown_mode:2;
        unsigned clk_det_rst:1;
        unsigned intr_sel:1;
        unsigned reserved:2;
        unsigned clk_detected:1;
        unsigned sof_sent_rcvd_tgl:1;
        unsigned sof_toggle_out:1;
        unsigned not_used:4;
        unsigned por:1;
        unsigned sleepm:1;
        unsigned txbitstuffennh:1;
        unsigned txbitstuffenn:1;
        unsigned commononn:1;
        unsigned refclksel:2;
        unsigned fsel:3;
        unsigned portreset:1;
        unsigned thread_id:6;
    } b;
} usb_ctrl_data_t;

typedef union usb_endp_intr_data {
    /** raw register data */
    uint32_t d32;
    /** register bits */
    struct {
        unsigned int0:1;
        unsigned int1:1;
        unsigned int2:1;
        unsigned int3:1;
        unsigned int4:1;
        unsigned int5:1;
        unsigned int6:1;
        unsigned int7:1;
        unsigned int8:1;
        unsigned int9:1;
        unsigned int10:1;
        unsigned int11:1;
        unsigned int12:1;
        unsigned int13:1;
        unsigned int14:1;
        unsigned int15:1;
        unsigned int16:1;
        unsigned int17:1;
        unsigned int18:1;
        unsigned int19:1;
        unsigned int20:1;
        unsigned int21:1;
        unsigned int22:1;
        unsigned int23:1;
        unsigned int24:1;
        unsigned int25:1;
        unsigned int26:1;
        unsigned int27:1;
        unsigned int28:1;
        unsigned int29:1;
        unsigned int30:1;
        unsigned int31:1;
    } b;
} usb_endp_intr_data_t;

typedef union usb_adp_bc_data {
    /** raw register data */
    uint32_t d32;
    /** register bits */
    struct {
	unsigned vbusvldextsel:1;
	unsigned vbusvldext:1;
	unsigned otgdisable:1;
	unsigned idpullup:1;
	unsigned drvvbus:1;
	unsigned adp_prb_en:1;
	unsigned adp_dischrg:1;
	unsigned adp_chrg:1;
	unsigned sessend:1;
	unsigned device_sess_vld:1;
	unsigned bvalid:1;
	unsigned avalid:1;
	unsigned iddig:1;
	unsigned vbusvalid:1;
	unsigned adp_probe:1;
	unsigned adp_sense:1;
	unsigned aca_enable:1;
	unsigned dcd_enable:1;
	unsigned vdatdetenb:1;
	unsigned vdatsrcenb:1;
	unsigned chrgsel:1;
	unsigned chg_det:1;
	unsigned aca_pin_range_c:1;
	unsigned aca_pin_range_b:1;
	unsigned aca_pin_range_a:1;
	unsigned aca_pin_gnd:1;
	unsigned aca_pin_float:1;
	unsigned not_used:5;
    } b;
} usb_adp_bc_data_t;

typedef union usb_dbg_uart_data {
    /** raw register data */
    uint32_t d32;
    /** register bits */
    struct {
	unsigned bypass_sel:1;
	unsigned bypass_dm_en:1;
	unsigned bypass_dp_en:1;
	unsigned bypass_dm_data:1;
	unsigned bypass_dp_data:1;
	unsigned fsv_minus:1;
	unsigned fsv_plus:1;
	unsigned burn_in_test:1;
	unsigned loopbackenb:1;
	unsigned set_iddq:1;
	unsigned ate_reset:1;
	unsigned reserved:4;
	unsigned not_used:17;
    } b;
} usb_dbg_uart_data_t;

typedef union phy_test_data {
    /** raw register data */
    uint32_t d32;
    /** register bits */
    struct {
	unsigned data_in:4;
	unsigned data_in_en:4;
	unsigned addr:4;
	unsigned data_out_sel:1;
	unsigned clk:1;
	unsigned vatestenb:2;
	unsigned data_out:4;
	unsigned not_used:12;
    } b;
} phy_test_data_t;

typedef union phy_tune_data {
    /** raw register data */
    uint32_t d32;
    /** register bits */
    struct {
	unsigned tx_res_tune:2;
	unsigned tx_hsxv_tune:2;
	unsigned tx_vref_tune:4;
	unsigned tx_rise_tune:2;
	unsigned tx_preemp_pulse_tune:1;
	unsigned tx_preemp_amp_tune:2;
	unsigned tx_fsls_tune:4;
	unsigned sqrx_tune:3;
	unsigned otg_tune:3;
	unsigned comp_dis_tune:3;
	unsigned not_used:6;
    } b;
} phy_tune_data_t;


/*
 * Clock source index must sync with chip's spec
 * M1/M2/M3/M6/M8 are different!
 * This is only for M8
 */
#define USB_PHY_CLK_SEL_XTAL	0

#define USB_PHY_A_INTR_BIT	(1 << 30)
#define USB_PHY_B_INTR_BIT	(1 << 31)

/* 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)

typedef struct amlogic_usb_config{
	/* clock info */
	int clk_selecter; // usb USB_PHY_CLOCK_SEL_xxx
	int pll_divider;  // when other/ddr/demod pll used, fill this

	/* controller */
	unsigned int base_addr;

	/* role */
	int id_mode; // only used after M2

	/* vbus call back */
	void (* set_vbus_power)(char is_power_on);

	/* battery charging detect call back */
	int(* battery_charging_det_cb)(char bc_mode);
#define BC_MODE_UNKNOWN	0
#define BC_MODE_SDP		1	/* Standard Downstream Port */
#define BC_MODE_DCP		2	/* Dedicated Charging Port */
#define BC_MODE_CDP		3	/* Charging Downstream Port */

}amlogic_usb_config_t;

#define BOARD_USB_MODE_HOST	0
#define BOARD_USB_MODE_SLAVE	1
#define BOARD_USB_MODE_CHARGER	2
#define BOARD_USB_MODE_MAX	3
amlogic_usb_config_t * board_usb_start(int mode,int index);
int board_usb_stop(int mode,int index);
void board_usb_init(amlogic_usb_config_t * usb_cfg,int mode);
int get_usb_count(void);
#endif //__ARCH_ARM_MESON_USB_H_U_BOOT__