usb.h

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/* SPDX-License-Identifier: GPL-2.0-only */
#include <types.h>
 
#ifndef _QCS405_USB_H_
#define _QCS405_USB_H_
 
/* QSCRATCH_GENERAL_CFG register bit offset */
#define PIPE_UTMI_CLK_SEL                       BIT(0)
#define PIPE3_PHYSTATUS_SW                      BIT(3)
#define PIPE_UTMI_CLK_DIS                       BIT(8)
 
/* Global USB3 Control  Registers */
#define DWC3_GUSB3PIPECTL_DELAYP1TRANS          BIT(18)
#define DWC3_GUSB3PIPECTL_UX_EXIT_IN_PX         BIT(27)
#define DWC3_GCTL_PRTCAPDIR(n)                  ((n) << 12)
#define DWC3_GCTL_PRTCAP_OTG                    3
#define DWC3_GCTL_PRTCAP_HOST                   1
 
/* Global USB2 PHY Configuration Register */
#define DWC3_GUSB2PHYCFG_USBTRDTIM(n)           ((n) << 10)
#define DWC3_GUSB2PHYCFG_USB2TRDTIM_MASK        DWC3_GUSB2PHYCFG_USBTRDTIM(0xf)
#define DWC3_GUSB2PHYCFG_PHYIF(n)               ((n) << 3)
#define DWC3_GUSB2PHYCFG_PHYIF_MASK             DWC3_GUSB2PHYCFG_PHYIF(1)
#define USBTRDTIM_UTMI_8_BIT                    9
#define UTMI_PHYIF_8_BIT                        0
 
#define DWC3_GCTL_SCALEDOWN(n)                  ((n) << 4)
#define DWC3_GCTL_SCALEDOWN_MASK                DWC3_GCTL_SCALEDOWN(3)
#define DWC3_GCTL_DISSCRAMBLE                   (1 << 3)
#define DWC3_GCTL_U2EXIT_LFPS                   (1 << 2)
#define DWC3_GCTL_DSBLCLKGTNG                   (1 << 0)
 
/* USB2 PHY register values */
#define USB2PHY_TCSR_CTRL                       0x01
#define USB2PHY_REFCLK_CTRL                     0x0d
#define USB2PHY_UTMI_CTRL5                      0x12
#define USB2PHY_PARAMETER_OVERRIDE_X0           0x63
#define USB2PHY_PARAMETER_OVERRIDE_X1           0x03
#define USB2PHY_PARAMETER_OVERRIDE_X2           0x1d
#define USB2PHY_PARAMETER_OVERRIDE_X3           0x03
#define USB2PHY_HS_PHY_CTRL1                    0x23
#define QUSB2PHY_HS_PHY_CTRL_COMMON0            0x08
#define QUSB2PHY_HS_PHY_CTRL_COMMON1            0xdc
#define USB2PHY_HS_PHY_CTRL2                    0xe0
#define USB2PHY_UTMI_CTRL5_POR_CLEAR            0x10
#define USB2PHY_HS_PHY_CTRL2_SUSPEND_N_SEL      0x60
 
struct usb_board_data {
        /* Register values going to override from the boardfile */
        u8 parameter_override_x0;
        u8 parameter_override_x1;
        u8 parameter_override_x2;
        u8 parameter_override_x3;
};
 
enum usb_port {
        HSUSB_SS_PORT_0,
        HSUSB_HS_PORT_1,
};
 
void setup_usb_host(enum usb_port port, struct usb_board_data *data);
/* Call reset_ before setup_ */
void reset_usb(enum usb_port port);
 
#endif /* _QCS405_USB_H_ */