// SPDX-License-Identifier: GPL-2.0 /* * R8A66597 HCD (Host Controller Driver) for u-boot * * Copyright (C) 2008 Yoshihiro Shimoda */ #include #include #include #include #include #include #include #include #include #include #include #include "r8a66597.h" #ifdef R8A66597_DEBUG #define R8A66597_DPRINT printf #else #define R8A66597_DPRINT(...) #endif static void get_hub_data(struct usb_device *dev, u16 *hub_devnum, u16 *hubport) { struct usb_device *parent = usb_dev_get_parent(dev); *hub_devnum = 0; *hubport = 0; /* check a device connected to root_hub */ if ((parent && parent->devnum == 1) || dev->devnum == 1) return; *hub_devnum = (u8)parent->devnum; *hubport = parent->portnr - 1; } static void set_devadd(struct r8a66597 *r8a66597, u8 r8a66597_address, struct usb_device *dev, int port) { u16 val, usbspd, upphub, hubport; unsigned long devadd_reg = get_devadd_addr(r8a66597_address); get_hub_data(dev, &upphub, &hubport); usbspd = r8a66597->speed; val = (upphub << 11) | (hubport << 8) | (usbspd << 6) | (port & 0x0001); r8a66597_write(r8a66597, val, devadd_reg); } static int r8a66597_clock_enable(struct r8a66597 *r8a66597) { u16 tmp; int i = 0; do { r8a66597_write(r8a66597, USBE, SYSCFG0); tmp = r8a66597_read(r8a66597, SYSCFG0); if (i++ > 1000) { printf("register access fail.\n"); return -1; } } while ((tmp & USBE) != USBE); r8a66597_bclr(r8a66597, USBE, SYSCFG0); /* * RZ/A Only: * Bits XTAL(UCKSEL) and UPLLE in SYSCFG0 for USB0 controls both USB0 * and USB1, so we must always set the USB0 register */ #if (CONFIG_R8A66597_XTAL == 1) r8a66597_bset(r8a66597, XTAL, SYSCFG0); #endif mdelay(1); r8a66597_bset(r8a66597, UPLLE, SYSCFG0); mdelay(1); r8a66597_bset(r8a66597, SUSPM, SUSPMODE0); return 0; } static void r8a66597_clock_disable(struct r8a66597 *r8a66597) { r8a66597_bclr(r8a66597, SUSPM, SUSPMODE0); r8a66597_bclr(r8a66597, UPLLE, SYSCFG0); mdelay(1); r8a66597_bclr(r8a66597, USBE, SYSCFG0); mdelay(1); } static void r8a66597_enable_port(struct r8a66597 *r8a66597, int port) { u16 val; val = port ? DRPD : DCFM | DRPD; r8a66597_bset(r8a66597, val, get_syscfg_reg(port)); r8a66597_bset(r8a66597, HSE, get_syscfg_reg(port)); } static void r8a66597_disable_port(struct r8a66597 *r8a66597, int port) { u16 val, tmp; r8a66597_write(r8a66597, 0, get_intenb_reg(port)); r8a66597_write(r8a66597, 0, get_intsts_reg(port)); r8a66597_port_power(r8a66597, port, 0); do { tmp = r8a66597_read(r8a66597, SOFCFG) & EDGESTS; udelay(640); } while (tmp == EDGESTS); val = port ? DRPD : DCFM | DRPD; r8a66597_bclr(r8a66597, val, get_syscfg_reg(port)); r8a66597_bclr(r8a66597, HSE, get_syscfg_reg(port)); } static int enable_controller(struct r8a66597 *r8a66597) { int ret, port; ret = r8a66597_clock_enable(r8a66597); if (ret < 0) return ret; r8a66597_bset(r8a66597, USBE, SYSCFG0); r8a66597_bset(r8a66597, INTL, SOFCFG); r8a66597_write(r8a66597, 0, INTENB0); for (port = 0; port < R8A66597_MAX_ROOT_HUB; port++) r8a66597_write(r8a66597, 0, get_intenb_reg(port)); r8a66597_bclr(r8a66597, BIGEND, CFIFOSEL); r8a66597_bclr(r8a66597, BIGEND, D0FIFOSEL); r8a66597_bclr(r8a66597, BIGEND, D1FIFOSEL); r8a66597_bset(r8a66597, TRNENSEL, SOFCFG); for (port = 0; port < R8A66597_MAX_ROOT_HUB; port++) r8a66597_enable_port(r8a66597, port); return 0; } static void disable_controller(struct r8a66597 *r8a66597) { int i; if (!(r8a66597_read(r8a66597, SYSCFG0) & USBE)) return; r8a66597_write(r8a66597, 0, INTENB0); r8a66597_write(r8a66597, 0, INTSTS0); r8a66597_write(r8a66597, 0, D0FIFOSEL); r8a66597_write(r8a66597, 0, D1FIFOSEL); r8a66597_write(r8a66597, 0, DCPCFG); r8a66597_write(r8a66597, 0x40, DCPMAXP); r8a66597_write(r8a66597, 0, DCPCTR); for (i = 0; i <= 10; i++) r8a66597_write(r8a66597, 0, get_devadd_addr(i)); for (i = 1; i <= 5; i++) { r8a66597_write(r8a66597, 0, get_pipetre_addr(i)); r8a66597_write(r8a66597, 0, get_pipetrn_addr(i)); } for (i = 1; i < R8A66597_MAX_NUM_PIPE; i++) { r8a66597_write(r8a66597, 0, get_pipectr_addr(i)); r8a66597_write(r8a66597, i, PIPESEL); r8a66597_write(r8a66597, 0, PIPECFG); r8a66597_write(r8a66597, 0, PIPEBUF); r8a66597_write(r8a66597, 0, PIPEMAXP); r8a66597_write(r8a66597, 0, PIPEPERI); } for (i = 0; i < R8A66597_MAX_ROOT_HUB; i++) r8a66597_disable_port(r8a66597, i); r8a66597_clock_disable(r8a66597); } static void r8a66597_reg_wait(struct r8a66597 *r8a66597, unsigned long reg, u16 mask, u16 loop) { u16 tmp; int i = 0; do { tmp = r8a66597_read(r8a66597, reg); if (i++ > 1000000) { printf("register%lx, loop %x is timeout\n", reg, loop); break; } } while ((tmp & mask) != loop); } static void pipe_buffer_setting(struct r8a66597 *r8a66597, struct usb_device *dev, unsigned long pipe) { u16 val = 0; u16 pipenum, bufnum, maxpacket; if (usb_pipein(pipe)) { pipenum = BULK_IN_PIPENUM; bufnum = BULK_IN_BUFNUM; maxpacket = dev->epmaxpacketin[usb_pipeendpoint(pipe)]; } else { pipenum = BULK_OUT_PIPENUM; bufnum = BULK_OUT_BUFNUM; maxpacket = dev->epmaxpacketout[usb_pipeendpoint(pipe)]; } if (r8a66597->pipe_config & (1 << pipenum)) return; r8a66597->pipe_config |= (1 << pipenum); r8a66597_bset(r8a66597, ACLRM, get_pipectr_addr(pipenum)); r8a66597_bclr(r8a66597, ACLRM, get_pipectr_addr(pipenum)); r8a66597_write(r8a66597, pipenum, PIPESEL); /* FIXME: This driver support bulk transfer only. */ if (!usb_pipein(pipe)) val |= R8A66597_DIR; else val |= R8A66597_SHTNAK; val |= R8A66597_BULK | R8A66597_DBLB | usb_pipeendpoint(pipe); r8a66597_write(r8a66597, val, PIPECFG); r8a66597_write(r8a66597, (8 << 10) | bufnum, PIPEBUF); r8a66597_write(r8a66597, make_devsel(usb_pipedevice(pipe)) | maxpacket, PIPEMAXP); r8a66597_write(r8a66597, 0, PIPEPERI); r8a66597_write(r8a66597, SQCLR, get_pipectr_addr(pipenum)); } static int send_setup_packet(struct r8a66597 *r8a66597, struct usb_device *dev, struct devrequest *setup) { int i; unsigned short *p = (unsigned short *)setup; unsigned long setup_addr = USBREQ; u16 intsts1; int timeout = 3000; u16 dcpctr; u16 devsel = setup->request == USB_REQ_SET_ADDRESS ? 0 : dev->devnum; r8a66597_write(r8a66597, make_devsel(devsel) | (8 << dev->maxpacketsize), DCPMAXP); r8a66597_write(r8a66597, ~(SIGN | SACK), INTSTS1); dcpctr = r8a66597_read(r8a66597, DCPCTR); if ((dcpctr & PID) == PID_BUF) { if (readw_poll_timeout(r8a66597->reg + DCPCTR, dcpctr, dcpctr & BSTS, 1000) < 0) { printf("DCPCTR BSTS timeout!\n"); return -ETIMEDOUT; } } for (i = 0; i < 4; i++) { r8a66597_write(r8a66597, le16_to_cpu(p[i]), setup_addr); setup_addr += 2; } r8a66597_write(r8a66597, ~0x0001, BRDYSTS); r8a66597_write(r8a66597, SUREQ, DCPCTR); while (1) { intsts1 = r8a66597_read(r8a66597, INTSTS1); if (intsts1 & SACK) break; if (intsts1 & SIGN) { printf("setup packet send error\n"); return -1; } if (timeout-- < 0) { printf("setup packet timeout\n"); return -1; } udelay(500); } return 0; } static int send_bulk_packet(struct r8a66597 *r8a66597, struct usb_device *dev, unsigned long pipe, void *buffer, int transfer_len) { u16 tmp, bufsize; u16 *buf; size_t size; R8A66597_DPRINT("%s\n", __func__); r8a66597_mdfy(r8a66597, MBW | BULK_OUT_PIPENUM, MBW | CURPIPE, CFIFOSEL); r8a66597_reg_wait(r8a66597, CFIFOSEL, CURPIPE, BULK_OUT_PIPENUM); tmp = r8a66597_read(r8a66597, CFIFOCTR); if ((tmp & FRDY) == 0) { printf("%s FRDY is not set (%x)\n", __func__, tmp); return -1; } /* prepare parameters */ bufsize = dev->epmaxpacketout[usb_pipeendpoint(pipe)]; buf = (u16 *)(buffer + dev->act_len); size = min((int)bufsize, transfer_len - dev->act_len); /* write fifo */ r8a66597_write(r8a66597, ~(1 << BULK_OUT_PIPENUM), BEMPSTS); if (buffer) { r8a66597_write_fifo(r8a66597, CFIFO, buf, size); r8a66597_write(r8a66597, BVAL, CFIFOCTR); } /* update parameters */ dev->act_len += size; r8a66597_mdfy(r8a66597, PID_BUF, PID, get_pipectr_addr(BULK_OUT_PIPENUM)); while (!(r8a66597_read(r8a66597, BEMPSTS) & (1 << BULK_OUT_PIPENUM))) if (ctrlc()) return -1; r8a66597_write(r8a66597, ~(1 << BULK_OUT_PIPENUM), BEMPSTS); if (dev->act_len >= transfer_len) r8a66597_mdfy(r8a66597, PID_NAK, PID, get_pipectr_addr(BULK_OUT_PIPENUM)); return 0; } static int receive_bulk_packet(struct r8a66597 *r8a66597, struct usb_device *dev, unsigned long pipe, void *buffer, int transfer_len) { u16 tmp; u16 *buf; const u16 pipenum = BULK_IN_PIPENUM; int rcv_len; int maxpacket = dev->epmaxpacketin[usb_pipeendpoint(pipe)]; R8A66597_DPRINT("%s\n", __func__); /* prepare */ if (dev->act_len == 0) { r8a66597_mdfy(r8a66597, PID_NAK, PID, get_pipectr_addr(pipenum)); r8a66597_write(r8a66597, ~(1 << pipenum), BRDYSTS); r8a66597_write(r8a66597, TRCLR, get_pipetre_addr(pipenum)); r8a66597_write(r8a66597, (transfer_len + maxpacket - 1) / maxpacket, get_pipetrn_addr(pipenum)); r8a66597_bset(r8a66597, TRENB, get_pipetre_addr(pipenum)); r8a66597_mdfy(r8a66597, PID_BUF, PID, get_pipectr_addr(pipenum)); } r8a66597_mdfy(r8a66597, MBW | pipenum, MBW | CURPIPE, CFIFOSEL); r8a66597_reg_wait(r8a66597, CFIFOSEL, CURPIPE, pipenum); while (!(r8a66597_read(r8a66597, BRDYSTS) & (1 << pipenum))) if (ctrlc()) return -1; r8a66597_write(r8a66597, ~(1 << pipenum), BRDYSTS); tmp = r8a66597_read(r8a66597, CFIFOCTR); if ((tmp & FRDY) == 0) { printf("%s FRDY is not set. (%x)\n", __func__, tmp); return -1; } buf = (u16 *)(buffer + dev->act_len); rcv_len = tmp & DTLN; dev->act_len += rcv_len; if (buffer) { if (rcv_len == 0) r8a66597_write(r8a66597, BCLR, CFIFOCTR); else r8a66597_read_fifo(r8a66597, CFIFO, buf, rcv_len); } return 0; } static int receive_control_packet(struct r8a66597 *r8a66597, struct usb_device *dev, void *buffer, int transfer_len) { u16 tmp; int rcv_len; /* FIXME: limit transfer size : 64byte or less */ r8a66597_bclr(r8a66597, R8A66597_DIR, DCPCFG); r8a66597_mdfy(r8a66597, 0, ISEL | CURPIPE, CFIFOSEL); r8a66597_reg_wait(r8a66597, CFIFOSEL, CURPIPE, 0); r8a66597_bset(r8a66597, SQSET, DCPCTR); r8a66597_write(r8a66597, BCLR, CFIFOCTR); r8a66597_mdfy(r8a66597, PID_BUF, PID, DCPCTR); while (!(r8a66597_read(r8a66597, BRDYSTS) & 0x0001)) if (ctrlc()) return -1; r8a66597_write(r8a66597, ~0x0001, BRDYSTS); r8a66597_mdfy(r8a66597, MBW, MBW | CURPIPE, CFIFOSEL); r8a66597_reg_wait(r8a66597, CFIFOSEL, CURPIPE, 0); tmp = r8a66597_read(r8a66597, CFIFOCTR); if ((tmp & FRDY) == 0) { printf("%s FRDY is not set. (%x)\n", __func__, tmp); return -1; } rcv_len = tmp & DTLN; dev->act_len += rcv_len; r8a66597_mdfy(r8a66597, PID_NAK, PID, DCPCTR); if (buffer) { if (rcv_len == 0) r8a66597_write(r8a66597, BCLR, DCPCTR); else r8a66597_read_fifo(r8a66597, CFIFO, buffer, rcv_len); } return 0; } static int send_status_packet(struct r8a66597 *r8a66597, unsigned long pipe) { r8a66597_bset(r8a66597, SQSET, DCPCTR); r8a66597_mdfy(r8a66597, PID_NAK, PID, DCPCTR); if (usb_pipein(pipe)) { r8a66597_bset(r8a66597, R8A66597_DIR, DCPCFG); r8a66597_mdfy(r8a66597, ISEL, ISEL | CURPIPE, CFIFOSEL); r8a66597_reg_wait(r8a66597, CFIFOSEL, CURPIPE, 0); r8a66597_write(r8a66597, ~BEMP0, BEMPSTS); r8a66597_write(r8a66597, BCLR | BVAL, CFIFOCTR); } else { r8a66597_bclr(r8a66597, R8A66597_DIR, DCPCFG); r8a66597_mdfy(r8a66597, 0, ISEL | CURPIPE, CFIFOSEL); r8a66597_reg_wait(r8a66597, CFIFOSEL, CURPIPE, 0); r8a66597_write(r8a66597, BCLR, CFIFOCTR); } r8a66597_mdfy(r8a66597, PID_BUF, PID, DCPCTR); while (!(r8a66597_read(r8a66597, BEMPSTS) & 0x0001)) if (ctrlc()) return -1; return 0; } static void r8a66597_check_syssts(struct r8a66597 *r8a66597, int port) { int count = R8A66597_MAX_SAMPLING; unsigned short syssts, old_syssts; R8A66597_DPRINT("%s\n", __func__); old_syssts = r8a66597_read(r8a66597, get_syssts_reg(port) & LNST); while (count > 0) { mdelay(R8A66597_RH_POLL_TIME); syssts = r8a66597_read(r8a66597, get_syssts_reg(port) & LNST); if (syssts == old_syssts) { count--; } else { count = R8A66597_MAX_SAMPLING; old_syssts = syssts; } } } static void r8a66597_bus_reset(struct r8a66597 *r8a66597, int port) { mdelay(10); r8a66597_mdfy(r8a66597, USBRST, USBRST | UACT, get_dvstctr_reg(port)); mdelay(50); r8a66597_mdfy(r8a66597, UACT, USBRST | UACT, get_dvstctr_reg(port)); mdelay(50); } static int check_usb_device_connecting(struct r8a66597 *r8a66597) { int timeout = 10000; /* 100usec * 10000 = 1sec */ int i; for (i = 0; i < 5; i++) { /* check a usb cable connect */ while (!(r8a66597_read(r8a66597, INTSTS1) & ATTCH)) { if (timeout-- < 0) { printf("%s timeout.\n", __func__); return -1; } udelay(100); } /* check a data line */ r8a66597_check_syssts(r8a66597, 0); r8a66597_bus_reset(r8a66597, 0); r8a66597->speed = get_rh_usb_speed(r8a66597, 0); if (!(r8a66597_read(r8a66597, INTSTS1) & DTCH)) { r8a66597->port_change = USB_PORT_STAT_C_CONNECTION; r8a66597->port_status = USB_PORT_STAT_CONNECTION | USB_PORT_STAT_ENABLE; return 0; /* success */ } R8A66597_DPRINT("USB device has detached. retry = %d\n", i); r8a66597_write(r8a66597, ~DTCH, INTSTS1); } return -1; /* fail */ } /* Virtual Root Hub */ #include static int r8a66597_submit_rh_msg(struct udevice *udev, struct usb_device *dev, unsigned long pipe, void *buffer, int transfer_len, struct devrequest *cmd) { struct r8a66597 *r8a66597 = dev_get_priv(udev); int leni = transfer_len; int len = 0; int stat = 0; __u16 bmRType_bReq; __u16 wValue; __u16 wLength; unsigned char data[32]; R8A66597_DPRINT("%s\n", __func__); if (usb_pipeint(pipe)) { printf("Root-Hub submit IRQ: NOT implemented"); return 0; } bmRType_bReq = cmd->requesttype | (cmd->request << 8); wValue = cpu_to_le16 (cmd->value); wLength = cpu_to_le16 (cmd->length); switch (bmRType_bReq) { case RH_GET_STATUS: *(__u16 *)buffer = cpu_to_le16(1); len = 2; break; case RH_GET_STATUS | RH_INTERFACE: *(__u16 *)buffer = cpu_to_le16(0); len = 2; break; case RH_GET_STATUS | RH_ENDPOINT: *(__u16 *)buffer = cpu_to_le16(0); len = 2; break; case RH_GET_STATUS | RH_CLASS: *(__u32 *)buffer = cpu_to_le32(0); len = 4; break; case RH_GET_STATUS | RH_OTHER | RH_CLASS: *(__u32 *)buffer = cpu_to_le32(r8a66597->port_status | (r8a66597->port_change << 16)); len = 4; break; case RH_CLEAR_FEATURE | RH_ENDPOINT: case RH_CLEAR_FEATURE | RH_CLASS: break; case RH_CLEAR_FEATURE | RH_OTHER | RH_CLASS: switch (wValue) { case RH_C_PORT_CONNECTION: r8a66597->port_change &= ~USB_PORT_STAT_C_CONNECTION; break; } break; case RH_SET_FEATURE | RH_OTHER | RH_CLASS: switch (wValue) { case (RH_PORT_SUSPEND): break; case (RH_PORT_RESET): r8a66597_bus_reset(r8a66597, 0); break; case (RH_PORT_POWER): break; case (RH_PORT_ENABLE): break; } break; case RH_SET_ADDRESS: r8a66597->rh_devnum = wValue; break; case RH_GET_DESCRIPTOR: switch ((wValue & 0xff00) >> 8) { case (0x01): /* device descriptor */ len = min_t(unsigned int, leni, min_t(unsigned int, sizeof(root_hub_dev_des), wLength)); memcpy(buffer, root_hub_dev_des, len); break; case (0x02): /* configuration descriptor */ len = min_t(unsigned int, leni, min_t(unsigned int, sizeof(root_hub_config_des), wLength)); memcpy(buffer, root_hub_config_des, len); break; case (0x03): /* string descriptors */ if (wValue == 0x0300) { len = min_t(unsigned int, leni, min_t(unsigned int, sizeof(root_hub_str_index0), wLength)); memcpy(buffer, root_hub_str_index0, len); } if (wValue == 0x0301) { len = min_t(unsigned int, leni, min_t(unsigned int, sizeof(root_hub_str_index1), wLength)); memcpy(buffer, root_hub_str_index1, len); } break; default: stat = USB_ST_STALLED; } break; case RH_GET_DESCRIPTOR | RH_CLASS: { __u32 temp = 0x00000001; data[0] = 9; /* min length; */ data[1] = 0x29; data[2] = temp & RH_A_NDP; data[3] = 0; if (temp & RH_A_PSM) data[3] |= 0x1; if (temp & RH_A_NOCP) data[3] |= 0x10; else if (temp & RH_A_OCPM) data[3] |= 0x8; /* corresponds to data[4-7] */ data[5] = (temp & RH_A_POTPGT) >> 24; data[7] = temp & RH_B_DR; if (data[2] < 7) { data[8] = 0xff; } else { data[0] += 2; data[8] = (temp & RH_B_DR) >> 8; data[9] = 0xff; data[10] = 0xff; } len = min_t(unsigned int, leni, min_t(unsigned int, data[0], wLength)); memcpy(buffer, data, len); break; } case RH_GET_CONFIGURATION: *(__u8 *)buffer = 0x01; len = 1; break; case RH_SET_CONFIGURATION: break; default: R8A66597_DPRINT("unsupported root hub command"); stat = USB_ST_STALLED; } mdelay(1); len = min_t(int, len, leni); dev->act_len = len; dev->status = stat; return stat; } static int r8a66597_submit_control_msg(struct udevice *udev, struct usb_device *dev, unsigned long pipe, void *buffer, int length, struct devrequest *setup) { struct r8a66597 *r8a66597 = dev_get_priv(udev); u16 r8a66597_address = setup->request == USB_REQ_SET_ADDRESS ? 0 : dev->devnum; debug("%s: dev='%s', udev=%p, udev->dev='%s', portnr=%d\n", __func__, udev->name, dev, dev->dev->name, dev->portnr); R8A66597_DPRINT("%s\n", __func__); if (usb_pipedevice(pipe) == r8a66597->rh_devnum) return r8a66597_submit_rh_msg(udev, dev, pipe, buffer, length, setup); R8A66597_DPRINT("%s: setup\n", __func__); set_devadd(r8a66597, r8a66597_address, dev, 0); if (send_setup_packet(r8a66597, dev, setup) < 0) { printf("setup packet send error\n"); return -1; } dev->act_len = 0; if (usb_pipein(pipe)) if (receive_control_packet(r8a66597, dev, buffer, length) < 0) return -1; if (send_status_packet(r8a66597, pipe) < 0) return -1; dev->status = 0; return 0; } static int r8a66597_submit_bulk_msg(struct udevice *udev, struct usb_device *dev, unsigned long pipe, void *buffer, int length) { struct r8a66597 *r8a66597 = dev_get_priv(udev); int ret = 0; debug("%s: dev='%s', udev=%p\n", __func__, udev->name, dev); R8A66597_DPRINT("%s\n", __func__); R8A66597_DPRINT("pipe = %08x, buffer = %p, len = %d, devnum = %d\n", pipe, buffer, length, dev->devnum); set_devadd(r8a66597, dev->devnum, dev, 0); pipe_buffer_setting(r8a66597, dev, pipe); dev->act_len = 0; while (dev->act_len < length && ret == 0) { if (ctrlc()) return -1; if (usb_pipein(pipe)) ret = receive_bulk_packet(r8a66597, dev, pipe, buffer, length); else ret = send_bulk_packet(r8a66597, dev, pipe, buffer, length); } if (ret == 0) dev->status = 0; return ret; } static int r8a66597_usb_of_to_plat(struct udevice *dev) { struct r8a66597 *priv = dev_get_priv(dev); fdt_addr_t addr; addr = dev_read_addr(dev); if (addr == FDT_ADDR_T_NONE) return -EINVAL; priv->reg = addr; return 0; } static int r8a66597_usb_probe(struct udevice *dev) { struct r8a66597 *priv = dev_get_priv(dev); struct usb_bus_priv *bus_priv = dev_get_uclass_priv(dev); int ret; bus_priv->desc_before_addr = true; if (CONFIG_IS_ENABLED(DM_REGULATOR)) { ret = device_get_supply_regulator(dev, "vbus-supply", &priv->vbus_supply); if (ret) { dev_err(dev, "can't get VBUS supply\n"); return ret; } ret = regulator_set_enable(priv->vbus_supply, true); if (ret) { dev_err(dev, "can't enable VBUS supply\n"); return ret; } } disable_controller(priv); mdelay(100); enable_controller(priv); r8a66597_port_power(priv, 0, 1); /* check usb device */ check_usb_device_connecting(priv); mdelay(50); return 0; } static int r8a66597_usb_remove(struct udevice *dev) { struct r8a66597 *priv = dev_get_priv(dev); int ret; disable_controller(priv); if (CONFIG_IS_ENABLED(DM_REGULATOR)) { ret = regulator_set_enable(priv->vbus_supply, false); if (ret) { dev_err(dev, "can't disable VBUS supply\n"); return ret; } } return 0; } struct dm_usb_ops r8a66597_usb_ops = { .control = r8a66597_submit_control_msg, .bulk = r8a66597_submit_bulk_msg, }; static const struct udevice_id r8a66597_usb_ids[] = { { .compatible = "renesas,rza1-usbhs" }, { } }; U_BOOT_DRIVER(usb_r8a66597) = { .name = "r8a66597_usb", .id = UCLASS_USB, .of_match = r8a66597_usb_ids, .of_to_plat = r8a66597_usb_of_to_plat, .probe = r8a66597_usb_probe, .remove = r8a66597_usb_remove, .ops = &r8a66597_usb_ops, .priv_auto = sizeof(struct r8a66597), .flags = DM_FLAG_ALLOC_PRIV_DMA, };