/* * Generic ULPI USB transceiver support * * Copyright (C) 2009 Daniel Mack * * Based on sources from * * Sascha Hauer * Freescale Semiconductors * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ #include #include #include #include #include #include struct ulpi_info { unsigned int id; char *name; }; #define ULPI_ID(vendor, product) (((vendor) << 16) | (product)) #define ULPI_INFO(_id, _name) \ { \ .id = (_id), \ .name = (_name), \ } /* ULPI hardcoded IDs, used for probing */ static struct ulpi_info ulpi_ids[] = { ULPI_INFO(ULPI_ID(0x04cc, 0x1504), "NXP ISP1504"), ULPI_INFO(ULPI_ID(0x0424, 0x0006), "SMSC USB331x"), ULPI_INFO(ULPI_ID(0x0424, 0x0007), "SMSC USB3320"), ULPI_INFO(ULPI_ID(0x0424, 0x0009), "SMSC USB334x"), ULPI_INFO(ULPI_ID(0x0451, 0x1507), "TI TUSB1210"), }; static int ulpi_set_otg_flags(struct usb_phy *phy) { unsigned int flags = ULPI_OTG_CTRL_DP_PULLDOWN | ULPI_OTG_CTRL_DM_PULLDOWN; if (phy->flags & ULPI_OTG_ID_PULLUP) flags |= ULPI_OTG_CTRL_ID_PULLUP; /* * ULPI Specification rev.1.1 default * for Dp/DmPulldown is enabled. */ if (phy->flags & ULPI_OTG_DP_PULLDOWN_DIS) flags &= ~ULPI_OTG_CTRL_DP_PULLDOWN; if (phy->flags & ULPI_OTG_DM_PULLDOWN_DIS) flags &= ~ULPI_OTG_CTRL_DM_PULLDOWN; if (phy->flags & ULPI_OTG_EXTVBUSIND) flags |= ULPI_OTG_CTRL_EXTVBUSIND; return usb_phy_io_write(phy, flags, ULPI_OTG_CTRL); } static int ulpi_set_fc_flags(struct usb_phy *phy) { unsigned int flags = 0; /* * ULPI Specification rev.1.1 default * for XcvrSelect is Full Speed. */ if (phy->flags & ULPI_FC_HS) flags |= ULPI_FUNC_CTRL_HIGH_SPEED; else if (phy->flags & ULPI_FC_LS) flags |= ULPI_FUNC_CTRL_LOW_SPEED; else if (phy->flags & ULPI_FC_FS4LS) flags |= ULPI_FUNC_CTRL_FS4LS; else flags |= ULPI_FUNC_CTRL_FULL_SPEED; if (phy->flags & ULPI_FC_TERMSEL) flags |= ULPI_FUNC_CTRL_TERMSELECT; /* * ULPI Specification rev.1.1 default * for OpMode is Normal Operation. */ if (phy->flags & ULPI_FC_OP_NODRV) flags |= ULPI_FUNC_CTRL_OPMODE_NONDRIVING; else if (phy->flags & ULPI_FC_OP_DIS_NRZI) flags |= ULPI_FUNC_CTRL_OPMODE_DISABLE_NRZI; else if (phy->flags & ULPI_FC_OP_NSYNC_NEOP) flags |= ULPI_FUNC_CTRL_OPMODE_NOSYNC_NOEOP; else flags |= ULPI_FUNC_CTRL_OPMODE_NORMAL; /* * ULPI Specification rev.1.1 default * for SuspendM is Powered. */ flags |= ULPI_FUNC_CTRL_SUSPENDM; return usb_phy_io_write(phy, flags, ULPI_FUNC_CTRL); } static int ulpi_set_ic_flags(struct usb_phy *phy) { unsigned int flags = 0; if (phy->flags & ULPI_IC_AUTORESUME) flags |= ULPI_IFC_CTRL_AUTORESUME; if (phy->flags & ULPI_IC_EXTVBUS_INDINV) flags |= ULPI_IFC_CTRL_EXTERNAL_VBUS; if (phy->flags & ULPI_IC_IND_PASSTHRU) flags |= ULPI_IFC_CTRL_PASSTHRU; if (phy->flags & ULPI_IC_PROTECT_DIS) flags |= ULPI_IFC_CTRL_PROTECT_IFC_DISABLE; return usb_phy_io_write(phy, flags, ULPI_IFC_CTRL); } static int ulpi_set_flags(struct usb_phy *phy) { int ret; ret = ulpi_set_otg_flags(phy); if (ret) return ret; ret = ulpi_set_ic_flags(phy); if (ret) return ret; return ulpi_set_fc_flags(phy); } static int ulpi_check_integrity(struct usb_phy *phy) { int ret, i; unsigned int val = 0x55; for (i = 0; i < 2; i++) { ret = usb_phy_io_write(phy, val, ULPI_SCRATCH); if (ret < 0) return ret; ret = usb_phy_io_read(phy, ULPI_SCRATCH); if (ret < 0) return ret; if (ret != val) { pr_err("ULPI integrity check: failed!"); return -ENODEV; } val = val << 1; } pr_info("ULPI integrity check: passed.\n"); return 0; } static int ulpi_init(struct usb_phy *phy) { int i, vid, pid, ret; u32 ulpi_id = 0; for (i = 0; i < 4; i++) { ret = usb_phy_io_read(phy, ULPI_PRODUCT_ID_HIGH - i); if (ret < 0) return ret; ulpi_id = (ulpi_id << 8) | ret; } vid = ulpi_id & 0xffff; pid = ulpi_id >> 16; pr_info("ULPI transceiver vendor/product ID 0x%04x/0x%04x\n", vid, pid); for (i = 0; i < ARRAY_SIZE(ulpi_ids); i++) { if (ulpi_ids[i].id == ULPI_ID(vid, pid)) { pr_info("Found %s ULPI transceiver.\n", ulpi_ids[i].name); break; } } ret = ulpi_check_integrity(phy); if (ret) return ret; return ulpi_set_flags(phy); } static int ulpi_set_host(struct usb_otg *otg, struct usb_bus *host) { struct usb_phy *phy = otg->usb_phy; unsigned int flags = usb_phy_io_read(phy, ULPI_IFC_CTRL); if (!host) { otg->host = NULL; return 0; } otg->host = host; flags &= ~(ULPI_IFC_CTRL_6_PIN_SERIAL_MODE | ULPI_IFC_CTRL_3_PIN_SERIAL_MODE | ULPI_IFC_CTRL_CARKITMODE); if (phy->flags & ULPI_IC_6PIN_SERIAL) flags |= ULPI_IFC_CTRL_6_PIN_SERIAL_MODE; else if (phy->flags & ULPI_IC_3PIN_SERIAL) flags |= ULPI_IFC_CTRL_3_PIN_SERIAL_MODE; else if (phy->flags & ULPI_IC_CARKIT) flags |= ULPI_IFC_CTRL_CARKITMODE; return usb_phy_io_write(phy, flags, ULPI_IFC_CTRL); } static int ulpi_set_vbus(struct usb_otg *otg, bool on) { struct usb_phy *phy = otg->usb_phy; unsigned int flags = usb_phy_io_read(phy, ULPI_OTG_CTRL); flags &= ~(ULPI_OTG_CTRL_DRVVBUS | ULPI_OTG_CTRL_DRVVBUS_EXT); if (on) { if (phy->flags & ULPI_OTG_DRVVBUS) flags |= ULPI_OTG_CTRL_DRVVBUS; if (phy->flags & ULPI_OTG_DRVVBUS_EXT) flags |= ULPI_OTG_CTRL_DRVVBUS_EXT; } return usb_phy_io_write(phy, flags, ULPI_OTG_CTRL); } struct usb_phy * otg_ulpi_create(struct usb_phy_io_ops *ops, unsigned int flags) { struct usb_phy *phy; struct usb_otg *otg; phy = kzalloc(sizeof(*phy), GFP_KERNEL); if (!phy) return NULL; otg = kzalloc(sizeof(*otg), GFP_KERNEL); if (!otg) { kfree(phy); return NULL; } phy->label = "ULPI"; phy->flags = flags; phy->io_ops = ops; phy->otg = otg; phy->init = ulpi_init; otg->usb_phy = phy; otg->set_host = ulpi_set_host; otg->set_vbus = ulpi_set_vbus; return phy; } EXPORT_SYMBOL_GPL(otg_ulpi_create); it/tip/tip
Pull SMP hotplug update from Thomas Gleixner: "This contains a trivial typo fix and an extension to the core code for dynamically allocating states in the prepare stage. The extension is necessary right now because we need a proper way to unbreak LTTNG, which iscurrently non functional due to the removal of the notifiers. Surely it's out of tree, but it's widely used by distros. The simple solution would have been to reserve a state for LTTNG, but I'm not fond about unused crap in the kernel and the dynamic range, which we admittedly should have done right away, allows us to remove quite some of the hardcoded states, i.e. those which have no ordering requirements. So doing the right thing now is better than having an smaller intermediate solution which needs to be reworked anyway" * 'smp-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: cpu/hotplug: Provide dynamic range for prepare stage perf/x86/amd/ibs: Fix typo after cleanup state names in cpu/hotplug
Diffstat (limited to 'include/soc/at91/atmel-sfr.h')