^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0+
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * Generic ULPI USB transceiver support
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * Copyright (C) 2009 Daniel Mack <daniel@caiaq.de>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) * Based on sources from
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) * Sascha Hauer <s.hauer@pengutronix.de>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) * Freescale Semiconductors
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include <linux/kernel.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include <linux/slab.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include <linux/export.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #include <linux/usb.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) #include <linux/usb/otg.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) #include <linux/usb/ulpi.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) struct ulpi_info {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) unsigned int id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) char *name;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) #define ULPI_ID(vendor, product) (((vendor) << 16) | (product))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) #define ULPI_INFO(_id, _name) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) { \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) .id = (_id), \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) .name = (_name), \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) /* ULPI hardcoded IDs, used for probing */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) static struct ulpi_info ulpi_ids[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) ULPI_INFO(ULPI_ID(0x04cc, 0x1504), "NXP ISP1504"),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) ULPI_INFO(ULPI_ID(0x0424, 0x0006), "SMSC USB331x"),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) ULPI_INFO(ULPI_ID(0x0424, 0x0007), "SMSC USB3320"),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) ULPI_INFO(ULPI_ID(0x0424, 0x0009), "SMSC USB334x"),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) ULPI_INFO(ULPI_ID(0x0451, 0x1507), "TI TUSB1210"),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) static int ulpi_set_otg_flags(struct usb_phy *phy)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) unsigned int flags = ULPI_OTG_CTRL_DP_PULLDOWN |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) ULPI_OTG_CTRL_DM_PULLDOWN;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) if (phy->flags & ULPI_OTG_ID_PULLUP)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) flags |= ULPI_OTG_CTRL_ID_PULLUP;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) * ULPI Specification rev.1.1 default
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) * for Dp/DmPulldown is enabled.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) if (phy->flags & ULPI_OTG_DP_PULLDOWN_DIS)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) flags &= ~ULPI_OTG_CTRL_DP_PULLDOWN;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) if (phy->flags & ULPI_OTG_DM_PULLDOWN_DIS)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) flags &= ~ULPI_OTG_CTRL_DM_PULLDOWN;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) if (phy->flags & ULPI_OTG_EXTVBUSIND)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) flags |= ULPI_OTG_CTRL_EXTVBUSIND;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) return usb_phy_io_write(phy, flags, ULPI_OTG_CTRL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) static int ulpi_set_fc_flags(struct usb_phy *phy)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) unsigned int flags = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) * ULPI Specification rev.1.1 default
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) * for XcvrSelect is Full Speed.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) if (phy->flags & ULPI_FC_HS)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) flags |= ULPI_FUNC_CTRL_HIGH_SPEED;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) else if (phy->flags & ULPI_FC_LS)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) flags |= ULPI_FUNC_CTRL_LOW_SPEED;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) else if (phy->flags & ULPI_FC_FS4LS)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) flags |= ULPI_FUNC_CTRL_FS4LS;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) flags |= ULPI_FUNC_CTRL_FULL_SPEED;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) if (phy->flags & ULPI_FC_TERMSEL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) flags |= ULPI_FUNC_CTRL_TERMSELECT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) * ULPI Specification rev.1.1 default
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) * for OpMode is Normal Operation.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) if (phy->flags & ULPI_FC_OP_NODRV)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) flags |= ULPI_FUNC_CTRL_OPMODE_NONDRIVING;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) else if (phy->flags & ULPI_FC_OP_DIS_NRZI)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) flags |= ULPI_FUNC_CTRL_OPMODE_DISABLE_NRZI;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) else if (phy->flags & ULPI_FC_OP_NSYNC_NEOP)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) flags |= ULPI_FUNC_CTRL_OPMODE_NOSYNC_NOEOP;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) flags |= ULPI_FUNC_CTRL_OPMODE_NORMAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) * ULPI Specification rev.1.1 default
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) * for SuspendM is Powered.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) flags |= ULPI_FUNC_CTRL_SUSPENDM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) return usb_phy_io_write(phy, flags, ULPI_FUNC_CTRL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) static int ulpi_set_ic_flags(struct usb_phy *phy)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) unsigned int flags = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) if (phy->flags & ULPI_IC_AUTORESUME)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) flags |= ULPI_IFC_CTRL_AUTORESUME;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) if (phy->flags & ULPI_IC_EXTVBUS_INDINV)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) flags |= ULPI_IFC_CTRL_EXTERNAL_VBUS;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) if (phy->flags & ULPI_IC_IND_PASSTHRU)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) flags |= ULPI_IFC_CTRL_PASSTHRU;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) if (phy->flags & ULPI_IC_PROTECT_DIS)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) flags |= ULPI_IFC_CTRL_PROTECT_IFC_DISABLE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) return usb_phy_io_write(phy, flags, ULPI_IFC_CTRL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) static int ulpi_set_flags(struct usb_phy *phy)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) ret = ulpi_set_otg_flags(phy);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) ret = ulpi_set_ic_flags(phy);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) return ulpi_set_fc_flags(phy);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) static int ulpi_check_integrity(struct usb_phy *phy)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) int ret, i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) unsigned int val = 0x55;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) for (i = 0; i < 2; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) ret = usb_phy_io_write(phy, val, ULPI_SCRATCH);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) ret = usb_phy_io_read(phy, ULPI_SCRATCH);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) if (ret != val) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) pr_err("ULPI integrity check: failed!");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) val = val << 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) pr_info("ULPI integrity check: passed.\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) static int ulpi_init(struct usb_phy *phy)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) int i, vid, pid, ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) u32 ulpi_id = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) for (i = 0; i < 4; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) ret = usb_phy_io_read(phy, ULPI_PRODUCT_ID_HIGH - i);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) ulpi_id = (ulpi_id << 8) | ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) vid = ulpi_id & 0xffff;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) pid = ulpi_id >> 16;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) pr_info("ULPI transceiver vendor/product ID 0x%04x/0x%04x\n", vid, pid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) for (i = 0; i < ARRAY_SIZE(ulpi_ids); i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) if (ulpi_ids[i].id == ULPI_ID(vid, pid)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) pr_info("Found %s ULPI transceiver.\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) ulpi_ids[i].name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) ret = ulpi_check_integrity(phy);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) return ulpi_set_flags(phy);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) static int ulpi_set_host(struct usb_otg *otg, struct usb_bus *host)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) struct usb_phy *phy = otg->usb_phy;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) unsigned int flags = usb_phy_io_read(phy, ULPI_IFC_CTRL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) if (!host) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) otg->host = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) otg->host = host;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) flags &= ~(ULPI_IFC_CTRL_6_PIN_SERIAL_MODE |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) ULPI_IFC_CTRL_3_PIN_SERIAL_MODE |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) ULPI_IFC_CTRL_CARKITMODE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) if (phy->flags & ULPI_IC_6PIN_SERIAL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) flags |= ULPI_IFC_CTRL_6_PIN_SERIAL_MODE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) else if (phy->flags & ULPI_IC_3PIN_SERIAL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) flags |= ULPI_IFC_CTRL_3_PIN_SERIAL_MODE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) else if (phy->flags & ULPI_IC_CARKIT)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) flags |= ULPI_IFC_CTRL_CARKITMODE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) return usb_phy_io_write(phy, flags, ULPI_IFC_CTRL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) static int ulpi_set_vbus(struct usb_otg *otg, bool on)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) struct usb_phy *phy = otg->usb_phy;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) unsigned int flags = usb_phy_io_read(phy, ULPI_OTG_CTRL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) flags &= ~(ULPI_OTG_CTRL_DRVVBUS | ULPI_OTG_CTRL_DRVVBUS_EXT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) if (on) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) if (phy->flags & ULPI_OTG_DRVVBUS)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) flags |= ULPI_OTG_CTRL_DRVVBUS;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) if (phy->flags & ULPI_OTG_DRVVBUS_EXT)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) flags |= ULPI_OTG_CTRL_DRVVBUS_EXT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) return usb_phy_io_write(phy, flags, ULPI_OTG_CTRL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) static void otg_ulpi_init(struct usb_phy *phy, struct usb_otg *otg,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) struct usb_phy_io_ops *ops,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) unsigned int flags)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) phy->label = "ULPI";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) phy->flags = flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) phy->io_ops = ops;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) phy->otg = otg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) phy->init = ulpi_init;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) otg->usb_phy = phy;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) otg->set_host = ulpi_set_host;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) otg->set_vbus = ulpi_set_vbus;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) struct usb_phy *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) otg_ulpi_create(struct usb_phy_io_ops *ops,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) unsigned int flags)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) struct usb_phy *phy;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) struct usb_otg *otg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) phy = kzalloc(sizeof(*phy), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) if (!phy)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) return NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) otg = kzalloc(sizeof(*otg), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) if (!otg) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) kfree(phy);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) return NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) otg_ulpi_init(phy, otg, ops, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) return phy;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) EXPORT_SYMBOL_GPL(otg_ulpi_create);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) struct usb_phy *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) devm_otg_ulpi_create(struct device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) struct usb_phy_io_ops *ops,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) unsigned int flags)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) struct usb_phy *phy;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) struct usb_otg *otg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) phy = devm_kzalloc(dev, sizeof(*phy), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) if (!phy)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) return NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) otg = devm_kzalloc(dev, sizeof(*otg), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) if (!otg) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) devm_kfree(dev, phy);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) return NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) otg_ulpi_init(phy, otg, ops, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) return phy;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) EXPORT_SYMBOL_GPL(devm_otg_ulpi_create);
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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