arch/arm/mach-meson/g12b/usb.c - manifest_repos/u-boot - Git at Google

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

 #include <common.h>
 #include <asm/io.h>
 #include <bitfield.h>
 #include <dm.h>
 #include <errno.h>
 #include <generic-phy.h>
 #include <regmap.h>
 #include <power/regulator.h>
 #include <clk.h>
 #include <asm/arch/usb.h>
 #include <amlogic/cpu_id.h>

 #include <linux/compat.h>
 #include <linux/ioport.h>
 #include <asm-generic/gpio.h>

 #define PHY20_RESET_LEVEL_BIT	16
 #define	PHY21_RESET_LEVEL_BIT	17
 #define	USB_RESET_BIT			2

 #define USB2_PHY_PLL_OFFSET_40	(0x09400414)
 #define USB2_PHY_PLL_OFFSET_44	(0x927E0000)
 #define USB2_PHY_PLL_OFFSET_48	(0xac5f69e5)

 #define USB2_PHY_PLL_OFFSET_10	(0x80000fff)
 #define USB2_PHY_PLL_OFFSET_34	(0x78000)
 #define USB2_REVB_PHY_PLL_OFFSET_34	(0x70000)

 #define USB2_PHY_PLL_OFFSET_38_CLEAR	(0)
 #define USB2_PHY_PLL_OFFSET_38_SET	    (0xe0004)
 #define USB2_PHY_PLL_OFFSET_50	(0xfe18)
 #define USB2_PHY_PLL_OFFSET_54	(0x2a)

 #define TUNING_DISCONNECT_THRESHOLD 0x3C

 static int Rev_flag = 0;

 static struct phy usb_phys[2];

 /*Rev_flag == 0XB, g12b and revB, tl1 */
 /*Rev_flag == 1, sm1 */
 static void phy_aml_usb2_check_rev (void)
 {
 	cpu_id_t cpu_id = get_cpu_id();

 	if (cpu_id.family_id == MESON_CPU_MAJOR_ID_G12B) {
 		if (cpu_id.chip_rev == 0xb)
 			Rev_flag = 0xb;
 		else
 			Rev_flag = 0;
 	} else if (cpu_id.family_id == MESON_CPU_MAJOR_ID_SM1) {
 		Rev_flag = MESON_CPU_MAJOR_ID_SM1;
 	} else if (cpu_id.family_id == MESON_CPU_MAJOR_ID_A1) {
 		Rev_flag = MESON_CPU_MAJOR_ID_A1;
 	} else if (cpu_id.family_id == MESON_CPU_MAJOR_ID_C1) {
 		Rev_flag = MESON_CPU_MAJOR_ID_C1;
 	}
 	return;
 }

 static int phy_aml_usb2_get_rev_type (void)
 {
 	int val = 0;

 	switch (Rev_flag) {
 		case MESON_CPU_MAJOR_ID_SM1:
 		case MESON_CPU_MAJOR_ID_A1:
 		case MESON_CPU_MAJOR_ID_C1:
 		case 0xb:
 			val = 1;
 			break;
 		default:
 			printk("amlogic usb phy need tuning\n");
 			val = 0;
 			break;
 	}

 	return val;
 }

 int get_usbphy_baseinfo(struct phy *usb_phys)
 {
 	struct udevice *bus;
 	struct uclass *uc;
 	int ret, i;
 	int count;

 	if (usb_phys[0].dev && usb_phys[1].dev)
 		return 0;

 	ret = uclass_get(UCLASS_USB, &uc);
 	if (ret)
 		return ret;
 	uclass_foreach_dev(bus, uc) {
 		debug("bus->name=%s, bus->driver->name =%s\n",
 			bus->name, bus->driver->name);
 		count = dev_count_phandle_with_args(bus, "phys", "#phy-cells");
 		debug("usb phy count=%u\n", count);
 		if (count <= 0)
 			return count;
 		for (i = 0; i < count; i++) {
 			ret = generic_phy_get_by_index(bus, i, &usb_phys[i]);
 			if (ret && ret != -ENOENT) {
 				pr_err("Failed to get USB PHY%d for %s\n",
 				       i, bus->name);
 				return ret;
 			}
 			ret = generic_phy_getinfo(&usb_phys[i]);
 			if (ret)
 				return ret;
 		}
 	}
 	return 0;
 }

 int usb_aml_detect_operation(int argc, char * const argv[])
 {
 	struct phy_aml_usb2_priv *usb2_priv;
 	struct phy_aml_usb3_priv *usb3_priv;
 	int ret;

 	ret = get_usbphy_baseinfo(usb_phys);
 	if (ret) {
 		printf("get usb dts failed\n");
 		return 0;
 	}
 	usb2_priv = dev_get_priv(usb_phys[0].dev);
 	usb3_priv = dev_get_priv(usb_phys[1].dev);

 	if (usb3_priv) {
 		printf("priv->usb3 port num = %d, config addr=0x%08x\n",
 			usb3_priv->usb3_port_num, usb3_priv->base_addr);
 	}
 	if (usb2_priv) {
 		printf("usb2 phy: config addr = 0x%08x, reset addr=0x%08x\n",
 			usb2_priv->base_addr, usb2_priv->reset_addr);

 		printf("usb2 phy: portnum=%d, phy-addr1= 0x%08x, phy-addr2= 0x%08x\n",
 		usb2_priv->u2_port_num, usb2_priv->usb_phy2_pll_base_addr[0],
 		usb2_priv->usb_phy2_pll_base_addr[1]);
 		printf("dwc2_a base addr: 0x%08x\n", usb2_priv->dwc2_a_addr);
 	}
 	phy_aml_usb2_check_rev();
 	printf("PHY version is 0x%02x\n", Rev_flag);
 	return 0;
 }

 static void set_pll_Calibration_default(uint32_t phy2_pll_base)
 {
     u32 tmp;

     tmp = (*(volatile uint32_t *)(unsigned long)((unsigned long)phy2_pll_base + 0x8));
     tmp &= 0xfff;
     tmp |= (*(volatile uint32_t *)(unsigned long)((unsigned long)phy2_pll_base + 0x10));
     (*(volatile uint32_t *)(unsigned long)((unsigned long)phy2_pll_base + 0x10))
      = tmp;
 }

 void usb_reset(unsigned int reset_addr, int bit){
 	*(volatile unsigned int *)(unsigned long)reset_addr = (1 << bit);
 }

 void set_usb_pll(uint32_t phy2_pll_base)
 {
 	int hardware_rev;

 	(*(volatile uint32_t *)((unsigned long)phy2_pll_base + 0x40))
 		= (USB2_PHY_PLL_OFFSET_40 | USB_PHY2_RESET | USB_PHY2_ENABLE);
 	(*(volatile uint32_t *)((unsigned long)phy2_pll_base + 0x44)) =
 		USB2_PHY_PLL_OFFSET_44;
 	hardware_rev = phy_aml_usb2_get_rev_type();
 	(*(volatile uint32_t *)((unsigned long)phy2_pll_base + 0x48)) =
 		USB2_PHY_PLL_OFFSET_48;
 	udelay(100);
 	(*(volatile uint32_t *)(unsigned long)((unsigned long)phy2_pll_base + 0x40))
 		= (((USB2_PHY_PLL_OFFSET_40) | (USB_PHY2_ENABLE))
 			& (~(USB_PHY2_RESET)));

 	if (hardware_rev) {
 		(*(volatile uint32_t *)(unsigned long)((unsigned long)phy2_pll_base + 0x50))
 			= USB2_PHY_PLL_OFFSET_50;
 		(*(volatile uint32_t *)(unsigned long)((unsigned long)phy2_pll_base + 0x54))
 			= USB2_PHY_PLL_OFFSET_54;
 		set_pll_Calibration_default(phy2_pll_base);
 	} else {
 		(*(volatile uint32_t *)(unsigned long)((unsigned long)phy2_pll_base + 0x50))
 			= USB2_PHY_PLL_OFFSET_50;
 		(*(volatile uint32_t *)(unsigned long)((unsigned long)phy2_pll_base + 0x10))
 			= USB2_PHY_PLL_OFFSET_10;
 		(*(volatile uint32_t *)(unsigned long)((unsigned long)phy2_pll_base + 0x38))
 			= USB2_PHY_PLL_OFFSET_38_CLEAR;
 	}

 	(*(volatile uint32_t *)((unsigned long)phy2_pll_base + 0xc)) =
 		TUNING_DISCONNECT_THRESHOLD;
 	(*(volatile uint32_t *)(unsigned long)((unsigned long)phy2_pll_base + 0x34))
 		= USB2_PHY_PLL_OFFSET_34;
 	debug("tuning_disconnect_threshold=0x%x\n", TUNING_DISCONNECT_THRESHOLD);
 }

 int usb_save_phy_dev (unsigned int number, struct phy *phy)
 {
 	usb_phys[number].dev = phy->dev;
 	usb_phys[number].id = phy->id;
 	return 0;
 }

 int usb2_phy_init (struct phy *phy) {
 	struct phy_aml_usb2_priv *priv = dev_get_priv(phy->dev);
 	struct u2p_aml_regs *u2p_aml_reg;
 	u2p_r0_t dev_u2p_r0;
 	u2p_r1_t dev_u2p_r1;
 	int i,cnt;

 	usb_save_phy_dev(0, phy);
 	phy_aml_usb2_check_rev();

 	*(volatile unsigned int *)(unsigned long)priv->reset_addr = (1 << USB_RESET_BIT);

 	udelay(500);
 	priv->usbphy_reset_bit[0] = PHY20_RESET_LEVEL_BIT;
 	priv->usbphy_reset_bit[1] = PHY21_RESET_LEVEL_BIT;

 	for (i = 0; i < priv->u2_port_num; i++) {
 		u2p_aml_reg = (struct u2p_aml_regs *)((ulong)(priv->base_addr + i * PHY_REGISTER_SIZE));
 		dev_u2p_r0.d32 = u2p_aml_reg->u2p_r0;
 		dev_u2p_r0.b.host_device= 1;
 		dev_u2p_r0.b.POR= 0;
 		u2p_aml_reg->u2p_r0  = dev_u2p_r0.d32;
 		udelay(10);
 		*(volatile unsigned int *)(unsigned long)priv->reset_addr = (1 << priv->usbphy_reset_bit[i]);
 		udelay(50);

 		/* wait for phy ready */
 		dev_u2p_r1.d32  = u2p_aml_reg->u2p_r1;
 		cnt = 0;
 		while (dev_u2p_r1.b.phy_rdy != 1) {
 			dev_u2p_r1.d32 = u2p_aml_reg->u2p_r1;
 			/*we wait phy ready max 1ms, common is 100us*/
 			if (cnt > 200)
 				break;
 			else {
 				cnt++;
 				udelay(5);
 			}
 		}
 	}

 	for (i = 0; i < priv->u2_port_num; i++) {
 		debug("------set usb pll\n");
 		set_usb_pll(priv->usb_phy2_pll_base_addr[i]);
 	}
 	return 0;

 }

 int usb2_phy_tuning(uint32_t phy2_pll_base, int port)
 {
 	unsigned long phy_reg_base;
 	unsigned int pll_set38, pll_set34;
 	unsigned int rev_type = 0;

 	if (port > 2)
 		return 0;

 	pll_set38 = USB2_PHY_PLL_OFFSET_38_SET;
 	pll_set34 = USB2_PHY_PLL_OFFSET_34;

 	debug("pll38=0x%08x, pll34=0x%08x,\n",
 			pll_set38, pll_set34);


 	phy_reg_base = phy2_pll_base;

 	rev_type = phy_aml_usb2_get_rev_type();
 	if (rev_type) {
 		return 0;
 	}

 	(*(volatile uint32_t *)(phy_reg_base + 0x38)) = pll_set38;
 	(*(volatile uint32_t *)(phy_reg_base + 0x34)) = pll_set34;
 	return 0;
 }

 /**************************************************************/
 /*           device mode config                               */
 /**************************************************************/
 unsigned int usb_get_dwc_a_base_addr(void)
 {
 	struct phy_aml_usb2_priv *usb2_priv;
 	int ret;

 	if (!usb_phys[0].dev) {
 		ret = get_usbphy_baseinfo(usb_phys);
 		if (ret) {
 			printf("get usb dts failed\n");
 			return 0;
 		}
 	}
 	usb2_priv = dev_get_priv(usb_phys[0].dev);
 	return usb2_priv->dwc2_a_addr;
 }

 unsigned int usb_get_device_mode_phy_base(void)
 {
 	struct phy_aml_usb2_priv *usb2_priv;
 	int ret;

 	if (!usb_phys[0].dev) {
 		ret = get_usbphy_baseinfo(usb_phys);
 		if (ret) {
 			printf("get usb dts failed\n");
 			return 0;
 		}
 	}
 	usb2_priv = dev_get_priv(usb_phys[0].dev);
 	return usb2_priv->usb_phy2_pll_base_addr[1];
 }

 void usb_phy_tuning_reset(void)
 {
 	unsigned long phy_reg_base = usb_get_device_mode_phy_base();
 	int rev_type;

 	if (phy_reg_base == 0)
 		return;
 	rev_type = phy_aml_usb2_get_rev_type();

 	if (rev_type)
 		return;

 	(*(volatile uint32_t *)(phy_reg_base + 0x38)) = USB2_PHY_PLL_OFFSET_38_CLEAR;
 	(*(volatile uint32_t *)(phy_reg_base + 0x34)) = USB2_PHY_PLL_OFFSET_34;
 }

 void usb_device_mode_init(void){
 	int ret;
 	u2p_aml_regs_t * u2p_aml_regs;
 	usb_aml_regs_t *usb_aml_regs;
 	struct phy_aml_usb2_priv *usb2_priv;
 	struct phy_aml_usb3_priv *usb3_priv;
 	unsigned int phy_base_addr;

 	phy_aml_usb2_check_rev();
 	ret = get_usbphy_baseinfo(usb_phys);
 	if (ret) {
 		printf("get usb dts failed\n");
 		return;
 	}
 	usb2_priv = dev_get_priv(usb_phys[0].dev);
 	usb3_priv = dev_get_priv(usb_phys[1].dev);
 	if (!usb2_priv || !usb3_priv) {
 		printf("get usb phy address from dts failed\n");
 		return;
 	}

 	u2p_aml_regs = (u2p_aml_regs_t * )((unsigned long)(usb2_priv->base_addr + PHY_REGISTER_SIZE));
 	usb_aml_regs = (usb_aml_regs_t * )((ulong)usb3_priv->base_addr);
 	phy_base_addr = usb2_priv->usb_phy2_pll_base_addr[1];
 	unsigned int reset_addr;
 	reset_addr = usb2_priv->reset_addr;

 	printf("PHY2=0x%p,PHY3=0x%p\n", u2p_aml_regs, usb_aml_regs);
 	if ((*(volatile uint32_t *)(unsigned long)(phy_base_addr + 0x38)) != 0) {
 		usb_phy_tuning_reset();
 		mdelay(150);
 	}

 	//step 1: usb controller reset
 	usb_reset(reset_addr, USB_RESET_BIT);
 	u2p_r0_t dev_u2p_r0;
 	u2p_r1_t dev_u2p_r1;

 	usb_r0_t dev_usb_r0;
 	usb_r4_t dev_usb_r4;
 	// step 3: enable usb INT internal USB
 	dev_usb_r0.d32	 = usb_aml_regs->usb_r0;
 	dev_usb_r0.b.u2d_ss_scaledown_mode = 0;
 	dev_usb_r0.b.u2d_act			   = 1;
 	usb_aml_regs->usb_r0 = dev_usb_r0.d32;

 	// step 4: disable usb phy sleep
 	dev_usb_r4.d32	 = usb_aml_regs->usb_r4;
 	dev_usb_r4.b.p21_SLEEPM0   = 1;
 	usb_aml_regs->usb_r4   = dev_usb_r4.d32;

 	// step 5: config phy21 device mode
 	dev_u2p_r0.d32	 = u2p_aml_regs->u2p_r0;
 	dev_u2p_r0.b.host_device= 0;
 	dev_u2p_r0.b.POR= 0;
 	u2p_aml_regs->u2p_r0  = dev_u2p_r0.d32;

 	udelay(10);
 	//step 6: phy21 reset
 	usb_reset(reset_addr, PHY21_RESET_LEVEL_BIT);
 	udelay(50);

 	// step 6: wait for phy ready
 	dev_u2p_r1.d32	= u2p_aml_regs->u2p_r1;
 	int cnt = 0;
 	while ((dev_u2p_r1.d32 & 0x00000001) != 1) {
 		dev_u2p_r1.d32 = u2p_aml_regs->u2p_r1;
 		if (cnt > 200)
 			break;
 		else {
 			cnt++;
 			udelay(5);
 		}
 	}

 	//set_usb_phy21_pll();
 	set_usb_pll(phy_base_addr);
 	//--------------------------------------------------

 	// ------------- usb phy21 initinal end ----------

 	//--------------------------------------------------

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

	#include <common.h>
	#include <asm/io.h>
	#include <bitfield.h>
	#include <dm.h>
	#include <errno.h>
	#include <generic-phy.h>
	#include <regmap.h>
	#include <power/regulator.h>
	#include <clk.h>
	#include <asm/arch/usb.h>
	#include <amlogic/cpu_id.h>

	#include <linux/compat.h>
	#include <linux/ioport.h>
	#include <asm-generic/gpio.h>

	#define PHY20_RESET_LEVEL_BIT 16
	#define PHY21_RESET_LEVEL_BIT 17
	#define USB_RESET_BIT 2

	#define USB2_PHY_PLL_OFFSET_40 (0x09400414)
	#define USB2_PHY_PLL_OFFSET_44 (0x927E0000)
	#define USB2_PHY_PLL_OFFSET_48 (0xac5f69e5)

	#define USB2_PHY_PLL_OFFSET_10 (0x80000fff)
	#define USB2_PHY_PLL_OFFSET_34 (0x78000)
	#define USB2_REVB_PHY_PLL_OFFSET_34 (0x70000)

	#define USB2_PHY_PLL_OFFSET_38_CLEAR (0)
	#define USB2_PHY_PLL_OFFSET_38_SET (0xe0004)
	#define USB2_PHY_PLL_OFFSET_50 (0xfe18)
	#define USB2_PHY_PLL_OFFSET_54 (0x2a)

	#define TUNING_DISCONNECT_THRESHOLD 0x3C

	static int Rev_flag = 0;

	static struct phy usb_phys[2];

	/Rev_flag == 0XB, g12b and revB, tl1 /
	/Rev_flag == 1, sm1 /
	static void phy_aml_usb2_check_rev (void)
	{
	cpu_id_t cpu_id = get_cpu_id();

	if (cpu_id.family_id == MESON_CPU_MAJOR_ID_G12B) {
	if (cpu_id.chip_rev == 0xb)
	Rev_flag = 0xb;
	else
	Rev_flag = 0;
	} else if (cpu_id.family_id == MESON_CPU_MAJOR_ID_SM1) {
	Rev_flag = MESON_CPU_MAJOR_ID_SM1;
	} else if (cpu_id.family_id == MESON_CPU_MAJOR_ID_A1) {
	Rev_flag = MESON_CPU_MAJOR_ID_A1;
	} else if (cpu_id.family_id == MESON_CPU_MAJOR_ID_C1) {
	Rev_flag = MESON_CPU_MAJOR_ID_C1;
	}
	return;
	}

	static int phy_aml_usb2_get_rev_type (void)
	{
	int val = 0;

	switch (Rev_flag) {
	case MESON_CPU_MAJOR_ID_SM1:
	case MESON_CPU_MAJOR_ID_A1:
	case MESON_CPU_MAJOR_ID_C1:
	case 0xb:
	val = 1;
	break;
	default:
	printk("amlogic usb phy need tuning\n");
	val = 0;
	break;
	}

	return val;
	}

	int get_usbphy_baseinfo(struct phy *usb_phys)
	{
	struct udevice *bus;
	struct uclass *uc;
	int ret, i;
	int count;

	if (usb_phys[0].dev && usb_phys[1].dev)
	return 0;

	ret = uclass_get(UCLASS_USB, &uc);
	if (ret)
	return ret;
	uclass_foreach_dev(bus, uc) {
	debug("bus->name=%s, bus->driver->name =%s\n",
	bus->name, bus->driver->name);
	count = dev_count_phandle_with_args(bus, "phys", "#phy-cells");
	debug("usb phy count=%u\n", count);
	if (count <= 0)
	return count;
	for (i = 0; i < count; i++) {
	ret = generic_phy_get_by_index(bus, i, &usb_phys[i]);
	if (ret && ret != -ENOENT) {
	pr_err("Failed to get USB PHY%d for %s\n",
	i, bus->name);
	return ret;
	}
	ret = generic_phy_getinfo(&usb_phys[i]);
	if (ret)
	return ret;
	}
	}
	return 0;
	}

	int usb_aml_detect_operation(int argc, char * const argv[])
	{
	struct phy_aml_usb2_priv *usb2_priv;
	struct phy_aml_usb3_priv *usb3_priv;
	int ret;

	ret = get_usbphy_baseinfo(usb_phys);
	if (ret) {
	printf("get usb dts failed\n");
	return 0;
	}
	usb2_priv = dev_get_priv(usb_phys[0].dev);
	usb3_priv = dev_get_priv(usb_phys[1].dev);

	if (usb3_priv) {
	printf("priv->usb3 port num = %d, config addr=0x%08x\n",
	usb3_priv->usb3_port_num, usb3_priv->base_addr);
	}
	if (usb2_priv) {
	printf("usb2 phy: config addr = 0x%08x, reset addr=0x%08x\n",
	usb2_priv->base_addr, usb2_priv->reset_addr);

	printf("usb2 phy: portnum=%d, phy-addr1= 0x%08x, phy-addr2= 0x%08x\n",
	usb2_priv->u2_port_num, usb2_priv->usb_phy2_pll_base_addr[0],
	usb2_priv->usb_phy2_pll_base_addr[1]);
	printf("dwc2_a base addr: 0x%08x\n", usb2_priv->dwc2_a_addr);
	}
	phy_aml_usb2_check_rev();
	printf("PHY version is 0x%02x\n", Rev_flag);
	return 0;
	}

	static void set_pll_Calibration_default(uint32_t phy2_pll_base)
	{
	u32 tmp;

	tmp = ((volatile uint32_t )(unsigned long)((unsigned long)phy2_pll_base + 0x8));
	tmp &= 0xfff;
	tmp \|= ((volatile uint32_t )(unsigned long)((unsigned long)phy2_pll_base + 0x10));
	((volatile uint32_t )(unsigned long)((unsigned long)phy2_pll_base + 0x10))
	= tmp;
	}

	void usb_reset(unsigned int reset_addr, int bit){
	(volatile unsigned int )(unsigned long)reset_addr = (1 << bit);
	}

	void set_usb_pll(uint32_t phy2_pll_base)
	{
	int hardware_rev;

	((volatile uint32_t )((unsigned long)phy2_pll_base + 0x40))
	= (USB2_PHY_PLL_OFFSET_40 \| USB_PHY2_RESET \| USB_PHY2_ENABLE);
	((volatile uint32_t )((unsigned long)phy2_pll_base + 0x44)) =
	USB2_PHY_PLL_OFFSET_44;
	hardware_rev = phy_aml_usb2_get_rev_type();
	((volatile uint32_t )((unsigned long)phy2_pll_base + 0x48)) =
	USB2_PHY_PLL_OFFSET_48;
	udelay(100);
	((volatile uint32_t )(unsigned long)((unsigned long)phy2_pll_base + 0x40))
	= (((USB2_PHY_PLL_OFFSET_40) \| (USB_PHY2_ENABLE))
	& (~(USB_PHY2_RESET)));

	if (hardware_rev) {
	((volatile uint32_t )(unsigned long)((unsigned long)phy2_pll_base + 0x50))
	= USB2_PHY_PLL_OFFSET_50;
	((volatile uint32_t )(unsigned long)((unsigned long)phy2_pll_base + 0x54))
	= USB2_PHY_PLL_OFFSET_54;
	set_pll_Calibration_default(phy2_pll_base);
	} else {
	((volatile uint32_t )(unsigned long)((unsigned long)phy2_pll_base + 0x50))
	= USB2_PHY_PLL_OFFSET_50;
	((volatile uint32_t )(unsigned long)((unsigned long)phy2_pll_base + 0x10))
	= USB2_PHY_PLL_OFFSET_10;
	((volatile uint32_t )(unsigned long)((unsigned long)phy2_pll_base + 0x38))
	= USB2_PHY_PLL_OFFSET_38_CLEAR;
	}

	((volatile uint32_t )((unsigned long)phy2_pll_base + 0xc)) =
	TUNING_DISCONNECT_THRESHOLD;
	((volatile uint32_t )(unsigned long)((unsigned long)phy2_pll_base + 0x34))
	= USB2_PHY_PLL_OFFSET_34;
	debug("tuning_disconnect_threshold=0x%x\n", TUNING_DISCONNECT_THRESHOLD);
	}

	int usb_save_phy_dev (unsigned int number, struct phy *phy)
	{
	usb_phys[number].dev = phy->dev;
	usb_phys[number].id = phy->id;
	return 0;
	}

	int usb2_phy_init (struct phy *phy) {
	struct phy_aml_usb2_priv *priv = dev_get_priv(phy->dev);
	struct u2p_aml_regs *u2p_aml_reg;
	u2p_r0_t dev_u2p_r0;
	u2p_r1_t dev_u2p_r1;
	int i,cnt;

	usb_save_phy_dev(0, phy);
	phy_aml_usb2_check_rev();

	(volatile unsigned int )(unsigned long)priv->reset_addr = (1 << USB_RESET_BIT);

	udelay(500);
	priv->usbphy_reset_bit[0] = PHY20_RESET_LEVEL_BIT;
	priv->usbphy_reset_bit[1] = PHY21_RESET_LEVEL_BIT;

	for (i = 0; i < priv->u2_port_num; i++) {
	u2p_aml_reg = (struct u2p_aml_regs )((ulong)(priv->base_addr + i PHY_REGISTER_SIZE));
	dev_u2p_r0.d32 = u2p_aml_reg->u2p_r0;
	dev_u2p_r0.b.host_device= 1;
	dev_u2p_r0.b.POR= 0;
	u2p_aml_reg->u2p_r0 = dev_u2p_r0.d32;
	udelay(10);
	(volatile unsigned int )(unsigned long)priv->reset_addr = (1 << priv->usbphy_reset_bit[i]);
	udelay(50);

	/* wait for phy ready */
	dev_u2p_r1.d32 = u2p_aml_reg->u2p_r1;
	cnt = 0;
	while (dev_u2p_r1.b.phy_rdy != 1) {
	dev_u2p_r1.d32 = u2p_aml_reg->u2p_r1;
	/we wait phy ready max 1ms, common is 100us/
	if (cnt > 200)
	break;
	else {
	cnt++;
	udelay(5);
	}
	}
	}

	for (i = 0; i < priv->u2_port_num; i++) {
	debug("------set usb pll\n");
	set_usb_pll(priv->usb_phy2_pll_base_addr[i]);
	}
	return 0;

	}

	int usb2_phy_tuning(uint32_t phy2_pll_base, int port)
	{
	unsigned long phy_reg_base;
	unsigned int pll_set38, pll_set34;
	unsigned int rev_type = 0;

	if (port > 2)
	return 0;

	pll_set38 = USB2_PHY_PLL_OFFSET_38_SET;
	pll_set34 = USB2_PHY_PLL_OFFSET_34;

	debug("pll38=0x%08x, pll34=0x%08x,\n",
	pll_set38, pll_set34);


	phy_reg_base = phy2_pll_base;

	rev_type = phy_aml_usb2_get_rev_type();
	if (rev_type) {
	return 0;
	}

	((volatile uint32_t )(phy_reg_base + 0x38)) = pll_set38;
	((volatile uint32_t )(phy_reg_base + 0x34)) = pll_set34;
	return 0;
	}

	/**************************************************************/
	/* device mode config */
	/**************************************************************/
	unsigned int usb_get_dwc_a_base_addr(void)
	{
	struct phy_aml_usb2_priv *usb2_priv;
	int ret;

	if (!usb_phys[0].dev) {
	ret = get_usbphy_baseinfo(usb_phys);
	if (ret) {
	printf("get usb dts failed\n");
	return 0;
	}
	}
	usb2_priv = dev_get_priv(usb_phys[0].dev);
	return usb2_priv->dwc2_a_addr;
	}

	unsigned int usb_get_device_mode_phy_base(void)
	{
	struct phy_aml_usb2_priv *usb2_priv;
	int ret;

	if (!usb_phys[0].dev) {
	ret = get_usbphy_baseinfo(usb_phys);
	if (ret) {
	printf("get usb dts failed\n");
	return 0;
	}
	}
	usb2_priv = dev_get_priv(usb_phys[0].dev);
	return usb2_priv->usb_phy2_pll_base_addr[1];
	}

	void usb_phy_tuning_reset(void)
	{
	unsigned long phy_reg_base = usb_get_device_mode_phy_base();
	int rev_type;

	if (phy_reg_base == 0)
	return;
	rev_type = phy_aml_usb2_get_rev_type();

	if (rev_type)
	return;

	((volatile uint32_t )(phy_reg_base + 0x38)) = USB2_PHY_PLL_OFFSET_38_CLEAR;
	((volatile uint32_t )(phy_reg_base + 0x34)) = USB2_PHY_PLL_OFFSET_34;
	}

	void usb_device_mode_init(void){
	int ret;
	u2p_aml_regs_t * u2p_aml_regs;
	usb_aml_regs_t *usb_aml_regs;
	struct phy_aml_usb2_priv *usb2_priv;
	struct phy_aml_usb3_priv *usb3_priv;
	unsigned int phy_base_addr;

	phy_aml_usb2_check_rev();
	ret = get_usbphy_baseinfo(usb_phys);
	if (ret) {
	printf("get usb dts failed\n");
	return;
	}
	usb2_priv = dev_get_priv(usb_phys[0].dev);
	usb3_priv = dev_get_priv(usb_phys[1].dev);
	if (!usb2_priv \|\| !usb3_priv) {
	printf("get usb phy address from dts failed\n");
	return;
	}

	u2p_aml_regs = (u2p_aml_regs_t * )((unsigned long)(usb2_priv->base_addr + PHY_REGISTER_SIZE));
	usb_aml_regs = (usb_aml_regs_t * )((ulong)usb3_priv->base_addr);
	phy_base_addr = usb2_priv->usb_phy2_pll_base_addr[1];
	unsigned int reset_addr;
	reset_addr = usb2_priv->reset_addr;

	printf("PHY2=0x%p,PHY3=0x%p\n", u2p_aml_regs, usb_aml_regs);
	if (((volatile uint32_t )(unsigned long)(phy_base_addr + 0x38)) != 0) {
	usb_phy_tuning_reset();
	mdelay(150);
	}

	//step 1: usb controller reset
	usb_reset(reset_addr, USB_RESET_BIT);
	u2p_r0_t dev_u2p_r0;
	u2p_r1_t dev_u2p_r1;

	usb_r0_t dev_usb_r0;
	usb_r4_t dev_usb_r4;
	// step 3: enable usb INT internal USB
	dev_usb_r0.d32 = usb_aml_regs->usb_r0;
	dev_usb_r0.b.u2d_ss_scaledown_mode = 0;
	dev_usb_r0.b.u2d_act = 1;
	usb_aml_regs->usb_r0 = dev_usb_r0.d32;

	// step 4: disable usb phy sleep
	dev_usb_r4.d32 = usb_aml_regs->usb_r4;
	dev_usb_r4.b.p21_SLEEPM0 = 1;
	usb_aml_regs->usb_r4 = dev_usb_r4.d32;

	// step 5: config phy21 device mode
	dev_u2p_r0.d32 = u2p_aml_regs->u2p_r0;
	dev_u2p_r0.b.host_device= 0;
	dev_u2p_r0.b.POR= 0;
	u2p_aml_regs->u2p_r0 = dev_u2p_r0.d32;

	udelay(10);
	//step 6: phy21 reset
	usb_reset(reset_addr, PHY21_RESET_LEVEL_BIT);
	udelay(50);

	// step 6: wait for phy ready
	dev_u2p_r1.d32 = u2p_aml_regs->u2p_r1;
	int cnt = 0;
	while ((dev_u2p_r1.d32 & 0x00000001) != 1) {
	dev_u2p_r1.d32 = u2p_aml_regs->u2p_r1;
	if (cnt > 200)
	break;
	else {
	cnt++;
	udelay(5);
	}
	}

	//set_usb_phy21_pll();
	set_usb_pll(phy_base_addr);
	//--------------------------------------------------

	// ------------- usb phy21 initinal end ----------

	//--------------------------------------------------

	}